added code for 2 modules

aws/aws-dynamodb/dynamodbec/.mvn/wrapper/MavenWrapperDownloader.java

@@ -0,0 +1,117 @@
+/*
+ * Copyright 2007-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import java.net.*;
+import java.io.*;
+import java.nio.channels.*;
+import java.util.Properties;
+
+public class MavenWrapperDownloader {
+
+    private static final String WRAPPER_VERSION = "0.5.6";
+    /**
+     * Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is provided.
+     */
+    private static final String DEFAULT_DOWNLOAD_URL = "https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/"
+        + WRAPPER_VERSION + "/maven-wrapper-" + WRAPPER_VERSION + ".jar";
+
+    /**
+     * Path to the maven-wrapper.properties file, which might contain a downloadUrl property to
+     * use instead of the default one.
+     */
+    private static final String MAVEN_WRAPPER_PROPERTIES_PATH =
+            ".mvn/wrapper/maven-wrapper.properties";
+
+    /**
+     * Path where the maven-wrapper.jar will be saved to.
+     */
+    private static final String MAVEN_WRAPPER_JAR_PATH =
+            ".mvn/wrapper/maven-wrapper.jar";
+
+    /**
+     * Name of the property which should be used to override the default download url for the wrapper.
+     */
+    private static final String PROPERTY_NAME_WRAPPER_URL = "wrapperUrl";
+
+    public static void main(String args[]) {
+        System.out.println("- Downloader started");
+        File baseDirectory = new File(args[0]);
+        System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath());
+
+        // If the maven-wrapper.properties exists, read it and check if it contains a custom
+        // wrapperUrl parameter.
+        File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH);
+        String url = DEFAULT_DOWNLOAD_URL;
+        if(mavenWrapperPropertyFile.exists()) {
+            FileInputStream mavenWrapperPropertyFileInputStream = null;
+            try {
+                mavenWrapperPropertyFileInputStream = new FileInputStream(mavenWrapperPropertyFile);
+                Properties mavenWrapperProperties = new Properties();
+                mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream);
+                url = mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL, url);
+            } catch (IOException e) {
+                System.out.println("- ERROR loading '" + MAVEN_WRAPPER_PROPERTIES_PATH + "'");
+            } finally {
+                try {
+                    if(mavenWrapperPropertyFileInputStream != null) {
+                        mavenWrapperPropertyFileInputStream.close();
+                    }
+                } catch (IOException e) {
+                    // Ignore ...
+                }
+            }
+        }
+        System.out.println("- Downloading from: " + url);
+
+        File outputFile = new File(baseDirectory.getAbsolutePath(), MAVEN_WRAPPER_JAR_PATH);
+        if(!outputFile.getParentFile().exists()) {
+            if(!outputFile.getParentFile().mkdirs()) {
+                System.out.println(
+                        "- ERROR creating output directory '" + outputFile.getParentFile().getAbsolutePath() + "'");
+            }
+        }
+        System.out.println("- Downloading to: " + outputFile.getAbsolutePath());
+        try {
+            downloadFileFromURL(url, outputFile);
+            System.out.println("Done");
+            System.exit(0);
+        } catch (Throwable e) {
+            System.out.println("- Error downloading");
+            e.printStackTrace();
+            System.exit(1);
+        }
+    }
+
+    private static void downloadFileFromURL(String urlString, File destination) throws Exception {
+        if (System.getenv("MVNW_USERNAME") != null && System.getenv("MVNW_PASSWORD") != null) {
+            String username = System.getenv("MVNW_USERNAME");
+            char[] password = System.getenv("MVNW_PASSWORD").toCharArray();
+            Authenticator.setDefault(new Authenticator() {
+                @Override
+                protected PasswordAuthentication getPasswordAuthentication() {
+                    return new PasswordAuthentication(username, password);
+                }
+            });
+        }
+        URL website = new URL(urlString);
+        ReadableByteChannel rbc;
+        rbc = Channels.newChannel(website.openStream());
+        FileOutputStream fos = new FileOutputStream(destination);
+        fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
+        fos.close();
+        rbc.close();
+    }
+
+}

aws/aws-dynamodb/dynamodbec/.mvn/wrapper/maven-wrapper.properties

@@ -0,0 +1,2 @@
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.6.3/apache-maven-3.6.3-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar

aws/aws-dynamodb/dynamodbec/HELP.md

@@ -0,0 +1,17 @@
+# Getting Started
+
+### Reference Documentation
+For further reference, please consider the following sections:
+
+* [Official Apache Maven documentation](https://maven.apache.org/guides/index.html)
+* [Spring Boot Maven Plugin Reference Guide](https://docs.spring.io/spring-boot/docs/2.5.0/maven-plugin/reference/html/)
+* [Create an OCI image](https://docs.spring.io/spring-boot/docs/2.5.0/maven-plugin/reference/html/#build-image)
+* [Spring Web](https://docs.spring.io/spring-boot/docs/2.5.0/reference/htmlsingle/#boot-features-developing-web-applications)
+
+### Guides
+The following guides illustrate how to use some features concretely:
+
+* [Building a RESTful Web Service](https://spring.io/guides/gs/rest-service/)
+* [Serving Web Content with Spring MVC](https://spring.io/guides/gs/serving-web-content/)
+* [Building REST services with Spring](https://spring.io/guides/tutorials/bookmarks/)
+

aws/aws-dynamodb/dynamodbec/mvnw

@@ -0,0 +1,310 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Maven Start Up Batch script
+#
+# Required ENV vars:
+# ------------------
+#   JAVA_HOME - location of a JDK home dir
+#
+# Optional ENV vars
+# -----------------
+#   M2_HOME - location of maven2's installed home dir
+#   MAVEN_OPTS - parameters passed to the Java VM when running Maven
+#     e.g. to debug Maven itself, use
+#       set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+#   MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+# ----------------------------------------------------------------------------
+
+if [ -z "$MAVEN_SKIP_RC" ] ; then
+
+  if [ -f /etc/mavenrc ] ; then
+    . /etc/mavenrc
+  fi
+
+  if [ -f "$HOME/.mavenrc" ] ; then
+    . "$HOME/.mavenrc"
+  fi
+
+fi
+
+# OS specific support.  $var _must_ be set to either true or false.
+cygwin=false;
+darwin=false;
+mingw=false
+case "`uname`" in
+  CYGWIN*) cygwin=true ;;
+  MINGW*) mingw=true;;
+  Darwin*) darwin=true
+    # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
+    # See https://developer.apple.com/library/mac/qa/qa1170/_index.html
+    if [ -z "$JAVA_HOME" ]; then
+      if [ -x "/usr/libexec/java_home" ]; then
+        export JAVA_HOME="`/usr/libexec/java_home`"
+      else
+        export JAVA_HOME="/Library/Java/Home"
+      fi
+    fi
+    ;;
+esac
+
+if [ -z "$JAVA_HOME" ] ; then
+  if [ -r /etc/gentoo-release ] ; then
+    JAVA_HOME=`java-config --jre-home`
+  fi
+fi
+
+if [ -z "$M2_HOME" ] ; then
+  ## resolve links - $0 may be a link to maven's home
+  PRG="$0"
+
+  # need this for relative symlinks
+  while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+      PRG="$link"
+    else
+      PRG="`dirname "$PRG"`/$link"
+    fi
+  done
+
+  saveddir=`pwd`
+
+  M2_HOME=`dirname "$PRG"`/..
+
+  # make it fully qualified
+  M2_HOME=`cd "$M2_HOME" && pwd`
+
+  cd "$saveddir"
+  # echo Using m2 at $M2_HOME
+fi
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched
+if $cygwin ; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME=`cygpath --unix "$M2_HOME"`
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
+fi
+
+# For Mingw, ensure paths are in UNIX format before anything is touched
+if $mingw ; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME="`(cd "$M2_HOME"; pwd)`"
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
+fi
+
+if [ -z "$JAVA_HOME" ]; then
+  javaExecutable="`which javac`"
+  if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
+    # readlink(1) is not available as standard on Solaris 10.
+    readLink=`which readlink`
+    if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
+      if $darwin ; then
+        javaHome="`dirname \"$javaExecutable\"`"
+        javaExecutable="`cd \"$javaHome\" && pwd -P`/javac"
+      else
+        javaExecutable="`readlink -f \"$javaExecutable\"`"
+      fi
+      javaHome="`dirname \"$javaExecutable\"`"
+      javaHome=`expr "$javaHome" : '\(.*\)/bin'`
+      JAVA_HOME="$javaHome"
+      export JAVA_HOME
+    fi
+  fi
+fi
+
+if [ -z "$JAVACMD" ] ; then
+  if [ -n "$JAVA_HOME"  ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+      # IBM's JDK on AIX uses strange locations for the executables
+      JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+    fi
+  else
+    JAVACMD="`which java`"
+  fi
+fi
+
+if [ ! -x "$JAVACMD" ] ; then
+  echo "Error: JAVA_HOME is not defined correctly." >&2
+  echo "  We cannot execute $JAVACMD" >&2
+  exit 1
+fi
+
+if [ -z "$JAVA_HOME" ] ; then
+  echo "Warning: JAVA_HOME environment variable is not set."
+fi
+
+CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
+
+# traverses directory structure from process work directory to filesystem root
+# first directory with .mvn subdirectory is considered project base directory
+find_maven_basedir() {
+
+  if [ -z "$1" ]
+  then
+    echo "Path not specified to find_maven_basedir"
+    return 1
+  fi
+
+  basedir="$1"
+  wdir="$1"
+  while [ "$wdir" != '/' ] ; do
+    if [ -d "$wdir"/.mvn ] ; then
+      basedir=$wdir
+      break
+    fi
+    # workaround for JBEAP-8937 (on Solaris 10/Sparc)
+    if [ -d "${wdir}" ]; then
+      wdir=`cd "$wdir/.."; pwd`
+    fi
+    # end of workaround
+  done
+  echo "${basedir}"
+}
+
+# concatenates all lines of a file
+concat_lines() {
+  if [ -f "$1" ]; then
+    echo "$(tr -s '\n' ' ' < "$1")"
+  fi
+}
+
+BASE_DIR=`find_maven_basedir "$(pwd)"`
+if [ -z "$BASE_DIR" ]; then
+  exit 1;
+fi
+
+##########################################################################################
+# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+# This allows using the maven wrapper in projects that prohibit checking in binary data.
+##########################################################################################
+if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Found .mvn/wrapper/maven-wrapper.jar"
+    fi
+else
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
+    fi
+    if [ -n "$MVNW_REPOURL" ]; then
+      jarUrl="$MVNW_REPOURL/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+    else
+      jarUrl="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+    fi
+    while IFS="=" read key value; do
+      case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
+      esac
+    done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Downloading from: $jarUrl"
+    fi
+    wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
+    if $cygwin; then
+      wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"`
+    fi
+
+    if command -v wget > /dev/null; then
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Found wget ... using wget"
+        fi
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            wget "$jarUrl" -O "$wrapperJarPath"
+        else
+            wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath"
+        fi
+    elif command -v curl > /dev/null; then
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Found curl ... using curl"
+        fi
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            curl -o "$wrapperJarPath" "$jarUrl" -f
+        else
+            curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
+        fi
+
+    else
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Falling back to using Java to download"
+        fi
+        javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
+        # For Cygwin, switch paths to Windows format before running javac
+        if $cygwin; then
+          javaClass=`cygpath --path --windows "$javaClass"`
+        fi
+        if [ -e "$javaClass" ]; then
+            if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
+                if [ "$MVNW_VERBOSE" = true ]; then
+                  echo " - Compiling MavenWrapperDownloader.java ..."
+                fi
+                # Compiling the Java class
+                ("$JAVA_HOME/bin/javac" "$javaClass")
+            fi
+            if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
+                # Running the downloader
+                if [ "$MVNW_VERBOSE" = true ]; then
+                  echo " - Running MavenWrapperDownloader.java ..."
+                fi
+                ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
+            fi
+        fi
+    fi
+fi
+##########################################################################################
+# End of extension
+##########################################################################################
+
+export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
+if [ "$MVNW_VERBOSE" = true ]; then
+  echo $MAVEN_PROJECTBASEDIR
+fi
+MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME=`cygpath --path --windows "$M2_HOME"`
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
+  [ -n "$MAVEN_PROJECTBASEDIR" ] &&
+    MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"`
+fi
+
+# Provide a "standardized" way to retrieve the CLI args that will
+# work with both Windows and non-Windows executions.
+MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
+export MAVEN_CMD_LINE_ARGS
+
+WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+exec "$JAVACMD" \
+  $MAVEN_OPTS \
+  -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
+  "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
+  ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"

aws/aws-dynamodb/dynamodbec/mvnw.cmd

@@ -0,0 +1,182 @@
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements.  See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership.  The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License.  You may obtain a copy of the License at
+@REM
+@REM    http://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied.  See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Maven Start Up Batch script
+@REM
+@REM Required ENV vars:
+@REM JAVA_HOME - location of a JDK home dir
+@REM
+@REM Optional ENV vars
+@REM M2_HOME - location of maven2's installed home dir
+@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
+@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending
+@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
+@REM     e.g. to debug Maven itself, use
+@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+@REM ----------------------------------------------------------------------------
+
+@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
+@echo off
+@REM set title of command window
+title %0
+@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on'
+@if "%MAVEN_BATCH_ECHO%" == "on"  echo %MAVEN_BATCH_ECHO%
+
+@REM set %HOME% to equivalent of $HOME
+if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
+
+@REM Execute a user defined script before this one
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
+@REM check for pre script, once with legacy .bat ending and once with .cmd ending
+if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat"
+if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd"
+:skipRcPre
+
+@setlocal
+
+set ERROR_CODE=0
+
+@REM To isolate internal variables from possible post scripts, we use another setlocal
+@setlocal
+
+@REM ==== START VALIDATION ====
+if not "%JAVA_HOME%" == "" goto OkJHome
+
+echo.
+echo Error: JAVA_HOME not found in your environment. >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+:OkJHome
+if exist "%JAVA_HOME%\bin\java.exe" goto init
+
+echo.
+echo Error: JAVA_HOME is set to an invalid directory. >&2
+echo JAVA_HOME = "%JAVA_HOME%" >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+@REM ==== END VALIDATION ====
+
+:init
+
+@REM Find the project base dir, i.e. the directory that contains the folder ".mvn".
+@REM Fallback to current working directory if not found.
+
+set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR%
+IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir
+
+set EXEC_DIR=%CD%
+set WDIR=%EXEC_DIR%
+:findBaseDir
+IF EXIST "%WDIR%"\.mvn goto baseDirFound
+cd ..
+IF "%WDIR%"=="%CD%" goto baseDirNotFound
+set WDIR=%CD%
+goto findBaseDir
+
+:baseDirFound
+set MAVEN_PROJECTBASEDIR=%WDIR%
+cd "%EXEC_DIR%"
+goto endDetectBaseDir
+
+:baseDirNotFound
+set MAVEN_PROJECTBASEDIR=%EXEC_DIR%
+cd "%EXEC_DIR%"
+
+:endDetectBaseDir
+
+IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig
+
+@setlocal EnableExtensions EnableDelayedExpansion
+for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a
+@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS%
+
+:endReadAdditionalConfig
+
+SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
+set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
+set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+
+FOR /F "tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
+    IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B
+)
+
+@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
+if exist %WRAPPER_JAR% (
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Found %WRAPPER_JAR%
+    )
+) else (
+    if not "%MVNW_REPOURL%" == "" (
+        SET DOWNLOAD_URL="%MVNW_REPOURL%/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+    )
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Couldn't find %WRAPPER_JAR%, downloading it ...
+        echo Downloading from: %DOWNLOAD_URL%
+    )
+
+    powershell -Command "&{"^
+		"$webclient = new-object System.Net.WebClient;"^
+		"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
+		"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
+		"}"^
+		"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^
+		"}"
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Finished downloading %WRAPPER_JAR%
+    )
+)
+@REM End of extension
+
+@REM Provide a "standardized" way to retrieve the CLI args that will
+@REM work with both Windows and non-Windows executions.
+set MAVEN_CMD_LINE_ARGS=%*
+
+%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
+if ERRORLEVEL 1 goto error
+goto end
+
+:error
+set ERROR_CODE=1
+
+:end
+@endlocal & set ERROR_CODE=%ERROR_CODE%
+
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost
+@REM check for post script, once with legacy .bat ending and once with .cmd ending
+if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat"
+if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd"
+:skipRcPost
+
+@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
+if "%MAVEN_BATCH_PAUSE%" == "on" pause
+
+if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE%
+
+exit /B %ERROR_CODE%

aws/aws-dynamodb/dynamodbec/pom.xml

@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>io.pratik</groupId>
+		<artifactId>dynamodbapp</artifactId>
+		<version>0.0.1-SNAPSHOT</version>
+	</parent>
+	<groupId>io.pratik</groupId>
+	<artifactId>dynamodbec</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>dynamodbec</name>
+	<description>Demo project for Spring Boot for dynamodb enhanced client</description>
+	<properties>
+		<java.version>11</java.version>
+	</properties>
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>software.amazon.awssdk</groupId>
+			<artifactId>dynamodb-enhanced</artifactId>
+			<version>2.16.74</version>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+	<dependencyManagement>
+		<dependencies>
+	        <dependency>
+	            <groupId>org.springframework.boot</groupId>
+	            <artifactId>spring-boot-dependencies</artifactId>
+	            <version>2.4.0</version>
+	            <type>pom</type>
+	            <scope>import</scope>
+	        </dependency>
+		</dependencies>
+	</dependencyManagement>
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+			<plugin>
+		        <artifactId>maven-compiler-plugin</artifactId>
+		        <version>3.5.1</version>
+		        <configuration>
+		            <source>11</source>
+		            <target>11</target>
+		        </configuration>
+			</plugin>			
+		</plugins>
+	</build>
+
+</project>

aws/aws-dynamodb/dynamodbec/src/main/java/io/pratik/dynamodbapps/DynamodbappsApplication.java

@@ -0,0 +1,12 @@
+package io.pratik.dynamodbapps;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class DynamodbappsApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(DynamodbappsApplication.class, args);
+	}
+}

aws/aws-dynamodb/dynamodbec/src/main/java/io/pratik/dynamodbapps/OrderRepository.java

@@ -0,0 +1,67 @@
+/**
+ * 
+ */
+package io.pratik.dynamodbapps;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Repository;
+
+import io.pratik.dynamodbapps.models.Order;
+import software.amazon.awssdk.auth.credentials.AwsCredentialsProvider;
+import software.amazon.awssdk.auth.credentials.DefaultCredentialsProvider;
+import software.amazon.awssdk.enhanced.dynamodb.DynamoDbEnhancedClient;
+import software.amazon.awssdk.enhanced.dynamodb.DynamoDbTable;
+import software.amazon.awssdk.enhanced.dynamodb.Key;
+import software.amazon.awssdk.enhanced.dynamodb.TableSchema;
+import software.amazon.awssdk.regions.Region;
+import software.amazon.awssdk.services.dynamodb.DynamoDbClient;
+
+/**
+ * @author pratikdas
+ *
+ */
+@Repository
+public class OrderRepository {
+	
+	@Autowired
+	private DynamoDbEnhancedClient dynamoDbenhancedClient ;
+	
+	private DynamoDbTable<Order> orderTable ;
+	
+	
+
+	public OrderRepository() {
+		super();
+	}
+
+	// Store this order item in the database
+	public void save(final Order order) {
+		DynamoDbTable<Order> orderTable = getTable();
+		
+		orderTable.putItem(order);
+	}
+
+	/**
+	 * @return
+	 */
+	private DynamoDbTable<Order> getTable() {
+		DynamoDbTable<Order> orderTable = 
+				dynamoDbenhancedClient.table("Order",
+						TableSchema.fromBean(Order.class));
+		return orderTable;
+	}
+
+	// Retrieve a single order item from the database
+	public Order getOrder(final String customerID, final String orderID) {
+		DynamoDbTable<Order> orderTable = getTable();
+		// Construct the key with partition and sort key
+		Key key = Key.builder().partitionValue(customerID)
+				               .sortValue(orderID)
+				               .build();
+		
+		Order order = orderTable.getItem(key);
+		
+		return order;
+	}
+
+}

aws/aws-dynamodb/dynamodbec/src/main/java/io/pratik/dynamodbapps/config/AppConfig.java

@@ -0,0 +1,37 @@
+/**
+ * 
+ */
+package io.pratik.dynamodbapps.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import software.amazon.awssdk.auth.credentials.AwsCredentialsProvider;
+import software.amazon.awssdk.auth.credentials.DefaultCredentialsProvider;
+import software.amazon.awssdk.enhanced.dynamodb.DynamoDbEnhancedClient;
+import software.amazon.awssdk.regions.Region;
+import software.amazon.awssdk.services.dynamodb.DynamoDbClient;
+
+/**
+ * @author pratikdas
+ *
+ */
+@Configuration
+public class AppConfig {
+
+	@Bean
+	public DynamoDbClient getDynamoDbClient() {
+		AwsCredentialsProvider credentialsProvider = DefaultCredentialsProvider.builder().profileName("pratikpoc")
+				.build();
+
+		return DynamoDbClient.builder().region(Region.US_EAST_1).credentialsProvider(credentialsProvider).build();
+	}
+	
+	@Bean
+	public DynamoDbEnhancedClient getDynamoDbEnhancedClient() {
+		return DynamoDbEnhancedClient.builder()
+                .dynamoDbClient(getDynamoDbClient())
+                .build();
+	}
+
+}

aws/aws-dynamodb/dynamodbec/src/main/java/io/pratik/dynamodbapps/models/Order.java

@@ -0,0 +1,63 @@
+/**
+ * 
+ */
+package io.pratik.dynamodbapps.models;
+
+import java.time.Instant;
+import java.util.List;
+
+import software.amazon.awssdk.enhanced.dynamodb.mapper.annotations.DynamoDbAttribute;
+import software.amazon.awssdk.enhanced.dynamodb.mapper.annotations.DynamoDbBean;
+import software.amazon.awssdk.enhanced.dynamodb.mapper.annotations.DynamoDbPartitionKey;
+import software.amazon.awssdk.enhanced.dynamodb.mapper.annotations.DynamoDbSortKey;
+
+/**
+ * @author pratikdas
+ *
+ */
+@DynamoDbBean
+public class Order {
+	private String customerID;
+	private String orderID;
+	private double orderValue;
+    private Instant createdDate;
+    
+    private List<Product> products;
+    
+    @DynamoDbPartitionKey
+    @DynamoDbAttribute("CustomerID")
+	public String getCustomerID() {
+		return customerID;
+	}
+	public void setCustomerID(String customerID) {
+      this.customerID = customerID;
+	}
+	
+	@DynamoDbSortKey
+	@DynamoDbAttribute("OrderID")
+	public String getOrderID() {
+		return orderID;
+	}
+	public void setOrderID(String orderID) {
+		this.orderID = orderID;
+	}
+	
+	public Instant getCreatedDate() {
+		return createdDate;
+	}
+	public void setCreatedDate(Instant createdDate) {
+		this.createdDate = createdDate;
+	}
+	public double getOrderValue() {
+		return orderValue;
+	}
+	public void setOrderValue(double orderValue) {
+		this.orderValue = orderValue;
+	}
+	public List<Product> getProducts() {
+		return products;
+	}
+	public void setProducts(List<Product> products) {
+		this.products = products;
+	}
+}

aws/aws-dynamodb/dynamodbec/src/main/java/io/pratik/dynamodbapps/models/Product.java

@@ -0,0 +1,38 @@
+/**
+ * 
+ */
+package io.pratik.dynamodbapps.models;
+
+import software.amazon.awssdk.enhanced.dynamodb.mapper.annotations.DynamoDbBean;
+
+/**
+ * @author pratikdas
+ *
+ */
+@DynamoDbBean
+public class Product {
+	private String name;
+	private String brand;
+	private double price;
+	public String getName() {
+		return name;
+	}
+	public void setName(String name) {
+		this.name = name;
+	}
+	public String getBrand() {
+		return brand;
+	}
+	public void setBrand(String brand) {
+		this.brand = brand;
+	}
+	public double getPrice() {
+		return price;
+	}
+	public void setPrice(double price) {
+		this.price = price;
+	}
+	
+	
+
+}

aws/aws-dynamodb/dynamodbec/src/main/resources/application.properties

@@ -0,0 +1 @@
+

aws/aws-dynamodb/dynamodbec/src/test/java/io/pratik/dynamodbapps/DynamodbappsApplicationTests.java

@@ -0,0 +1,13 @@
+package io.pratik.dynamodbapps;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class DynamodbappsApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}

aws/aws-dynamodb/dynamodbec/src/test/java/io/pratik/dynamodbapps/OrderRepositoryTest.java

@@ -0,0 +1,76 @@
+/**
+ * 
+ */
+package io.pratik.dynamodbapps;
+
+import java.time.Instant;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+
+import io.pratik.dynamodbapps.models.Order;
+import io.pratik.dynamodbapps.models.Product;
+
+/**
+ * @author pratikdas
+ *
+ */
+@SpringBootTest
+class OrderRepositoryTest {
+	
+	@Autowired
+	private OrderRepository orderRepository;
+
+	/**
+	 * @throws java.lang.Exception
+	 */
+	@BeforeEach
+	void setUp() throws Exception {
+	}
+
+	/**
+	 * @throws java.lang.Exception
+	 */
+	@AfterEach
+	void tearDown() throws Exception {
+	}
+
+	@Test
+	void testCreateOrder() {
+		Order order = new Order();
+		order.setOrderID("ORD-010");
+		order.setCustomerID("CUST-001");
+		
+		List<Product> products = new ArrayList<Product>();
+		
+		Product product = new Product();
+		product.setName("Television");
+		product.setBrand("samsung");
+		product.setPrice(112.56);
+		products.add(product);
+		
+		product = new Product();
+		product.setName("Washing Machine");
+		product.setBrand("panasonic");
+		product.setPrice(119.99);
+		products.add(product);
+		
+		order.setProducts(products );
+		order.setOrderValue(56.7);
+		order.setCreatedDate(Instant.now());
+		orderRepository.save(order);
+	}
+	
+	@Test
+	void testGetOrder() {
+		Order order = 
+		    orderRepository.getOrder("CUST-001", "ORD-010");
+		System.out.println("order "+order.getProducts());
+	}
+
+}

aws/aws-dynamodb/dynamodbec/target/classes/application.properties

@@ -0,0 +1 @@
+

aws/aws-dynamodb/dynamodbec/target/maven-archiver/pom.properties

@@ -0,0 +1,5 @@
+#Generated by Maven
+#Thu Jun 03 12:13:17 GST 2021
+groupId=io.pratik
+artifactId=dynamodbec
+version=0.0.1-SNAPSHOT

aws/aws-dynamodb/dynamodbec/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst

@@ -0,0 +1,5 @@
+io/pratik/dynamodbapps/models/Product.class
+io/pratik/dynamodbapps/config/AppConfig.class
+io/pratik/dynamodbapps/models/Order.class
+io/pratik/dynamodbapps/OrderRepository.class
+io/pratik/dynamodbapps/DynamodbappsApplication.class

aws/aws-dynamodb/dynamodbec/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst

@@ -0,0 +1,5 @@
+/Users/pratikdas/pratik/code-examples/aws/aws-dynamodb/dynamodbec/src/main/java/io/pratik/dynamodbapps/DynamodbappsApplication.java
+/Users/pratikdas/pratik/code-examples/aws/aws-dynamodb/dynamodbec/src/main/java/io/pratik/dynamodbapps/OrderRepository.java
+/Users/pratikdas/pratik/code-examples/aws/aws-dynamodb/dynamodbec/src/main/java/io/pratik/dynamodbapps/config/AppConfig.java
+/Users/pratikdas/pratik/code-examples/aws/aws-dynamodb/dynamodbec/src/main/java/io/pratik/dynamodbapps/models/Product.java
+/Users/pratikdas/pratik/code-examples/aws/aws-dynamodb/dynamodbec/src/main/java/io/pratik/dynamodbapps/models/Order.java

aws/aws-dynamodb/dynamodbec/target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/createdFiles.lst

@@ -0,0 +1,2 @@
+io/pratik/dynamodbapps/OrderRepositoryTest.class
+io/pratik/dynamodbapps/DynamodbappsApplicationTests.class

aws/aws-dynamodb/dynamodbec/target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/inputFiles.lst

@@ -0,0 +1,2 @@
+/Users/pratikdas/pratik/code-examples/aws/aws-dynamodb/dynamodbec/src/test/java/io/pratik/dynamodbapps/OrderRepositoryTest.java
+/Users/pratikdas/pratik/code-examples/aws/aws-dynamodb/dynamodbec/src/test/java/io/pratik/dynamodbapps/DynamodbappsApplicationTests.java

aws/aws-dynamodb/dynamodbspringdata/.mvn/wrapper/MavenWrapperDownloader.java

@@ -0,0 +1,117 @@
+/*
+ * Copyright 2007-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import java.net.*;
+import java.io.*;
+import java.nio.channels.*;
+import java.util.Properties;
+
+public class MavenWrapperDownloader {
+
+    private static final String WRAPPER_VERSION = "0.5.6";
+    /**
+     * Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is provided.
+     */
+    private static final String DEFAULT_DOWNLOAD_URL = "https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/"
+        + WRAPPER_VERSION + "/maven-wrapper-" + WRAPPER_VERSION + ".jar";
+
+    /**
+     * Path to the maven-wrapper.properties file, which might contain a downloadUrl property to
+     * use instead of the default one.
+     */
+    private static final String MAVEN_WRAPPER_PROPERTIES_PATH =
+            ".mvn/wrapper/maven-wrapper.properties";
+
+    /**
+     * Path where the maven-wrapper.jar will be saved to.
+     */
+    private static final String MAVEN_WRAPPER_JAR_PATH =
+            ".mvn/wrapper/maven-wrapper.jar";
+
+    /**
+     * Name of the property which should be used to override the default download url for the wrapper.
+     */
+    private static final String PROPERTY_NAME_WRAPPER_URL = "wrapperUrl";
+
+    public static void main(String args[]) {
+        System.out.println("- Downloader started");
+        File baseDirectory = new File(args[0]);
+        System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath());
+
+        // If the maven-wrapper.properties exists, read it and check if it contains a custom
+        // wrapperUrl parameter.
+        File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH);
+        String url = DEFAULT_DOWNLOAD_URL;
+        if(mavenWrapperPropertyFile.exists()) {
+            FileInputStream mavenWrapperPropertyFileInputStream = null;
+            try {
+                mavenWrapperPropertyFileInputStream = new FileInputStream(mavenWrapperPropertyFile);
+                Properties mavenWrapperProperties = new Properties();
+                mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream);
+                url = mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL, url);
+            } catch (IOException e) {
+                System.out.println("- ERROR loading '" + MAVEN_WRAPPER_PROPERTIES_PATH + "'");
+            } finally {
+                try {
+                    if(mavenWrapperPropertyFileInputStream != null) {
+                        mavenWrapperPropertyFileInputStream.close();
+                    }
+                } catch (IOException e) {
+                    // Ignore ...
+                }
+            }
+        }
+        System.out.println("- Downloading from: " + url);
+
+        File outputFile = new File(baseDirectory.getAbsolutePath(), MAVEN_WRAPPER_JAR_PATH);
+        if(!outputFile.getParentFile().exists()) {
+            if(!outputFile.getParentFile().mkdirs()) {
+                System.out.println(
+                        "- ERROR creating output directory '" + outputFile.getParentFile().getAbsolutePath() + "'");
+            }
+        }
+        System.out.println("- Downloading to: " + outputFile.getAbsolutePath());
+        try {
+            downloadFileFromURL(url, outputFile);
+            System.out.println("Done");
+            System.exit(0);
+        } catch (Throwable e) {
+            System.out.println("- Error downloading");
+            e.printStackTrace();
+            System.exit(1);
+        }
+    }
+
+    private static void downloadFileFromURL(String urlString, File destination) throws Exception {
+        if (System.getenv("MVNW_USERNAME") != null && System.getenv("MVNW_PASSWORD") != null) {
+            String username = System.getenv("MVNW_USERNAME");
+            char[] password = System.getenv("MVNW_PASSWORD").toCharArray();
+            Authenticator.setDefault(new Authenticator() {
+                @Override
+                protected PasswordAuthentication getPasswordAuthentication() {
+                    return new PasswordAuthentication(username, password);
+                }
+            });
+        }
+        URL website = new URL(urlString);
+        ReadableByteChannel rbc;
+        rbc = Channels.newChannel(website.openStream());
+        FileOutputStream fos = new FileOutputStream(destination);
+        fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
+        fos.close();
+        rbc.close();
+    }
+
+}

aws/aws-dynamodb/dynamodbspringdata/.mvn/wrapper/maven-wrapper.properties

@@ -0,0 +1,2 @@
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.6.3/apache-maven-3.6.3-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar

aws/aws-dynamodb/dynamodbspringdata/mvnw

@@ -0,0 +1,310 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Maven Start Up Batch script
+#
+# Required ENV vars:
+# ------------------
+#   JAVA_HOME - location of a JDK home dir
+#
+# Optional ENV vars
+# -----------------
+#   M2_HOME - location of maven2's installed home dir
+#   MAVEN_OPTS - parameters passed to the Java VM when running Maven
+#     e.g. to debug Maven itself, use
+#       set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+#   MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+# ----------------------------------------------------------------------------
+
+if [ -z "$MAVEN_SKIP_RC" ] ; then
+
+  if [ -f /etc/mavenrc ] ; then
+    . /etc/mavenrc
+  fi
+
+  if [ -f "$HOME/.mavenrc" ] ; then
+    . "$HOME/.mavenrc"
+  fi
+
+fi
+
+# OS specific support.  $var _must_ be set to either true or false.
+cygwin=false;
+darwin=false;
+mingw=false
+case "`uname`" in
+  CYGWIN*) cygwin=true ;;
+  MINGW*) mingw=true;;
+  Darwin*) darwin=true
+    # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
+    # See https://developer.apple.com/library/mac/qa/qa1170/_index.html
+    if [ -z "$JAVA_HOME" ]; then
+      if [ -x "/usr/libexec/java_home" ]; then
+        export JAVA_HOME="`/usr/libexec/java_home`"
+      else
+        export JAVA_HOME="/Library/Java/Home"
+      fi
+    fi
+    ;;
+esac
+
+if [ -z "$JAVA_HOME" ] ; then
+  if [ -r /etc/gentoo-release ] ; then
+    JAVA_HOME=`java-config --jre-home`
+  fi
+fi
+
+if [ -z "$M2_HOME" ] ; then
+  ## resolve links - $0 may be a link to maven's home
+  PRG="$0"
+
+  # need this for relative symlinks
+  while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+      PRG="$link"
+    else
+      PRG="`dirname "$PRG"`/$link"
+    fi
+  done
+
+  saveddir=`pwd`
+
+  M2_HOME=`dirname "$PRG"`/..
+
+  # make it fully qualified
+  M2_HOME=`cd "$M2_HOME" && pwd`
+
+  cd "$saveddir"
+  # echo Using m2 at $M2_HOME
+fi
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched
+if $cygwin ; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME=`cygpath --unix "$M2_HOME"`
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
+fi
+
+# For Mingw, ensure paths are in UNIX format before anything is touched
+if $mingw ; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME="`(cd "$M2_HOME"; pwd)`"
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
+fi
+
+if [ -z "$JAVA_HOME" ]; then
+  javaExecutable="`which javac`"
+  if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
+    # readlink(1) is not available as standard on Solaris 10.
+    readLink=`which readlink`
+    if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
+      if $darwin ; then
+        javaHome="`dirname \"$javaExecutable\"`"
+        javaExecutable="`cd \"$javaHome\" && pwd -P`/javac"
+      else
+        javaExecutable="`readlink -f \"$javaExecutable\"`"
+      fi
+      javaHome="`dirname \"$javaExecutable\"`"
+      javaHome=`expr "$javaHome" : '\(.*\)/bin'`
+      JAVA_HOME="$javaHome"
+      export JAVA_HOME
+    fi
+  fi
+fi
+
+if [ -z "$JAVACMD" ] ; then
+  if [ -n "$JAVA_HOME"  ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+      # IBM's JDK on AIX uses strange locations for the executables
+      JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+    fi
+  else
+    JAVACMD="`which java`"
+  fi
+fi
+
+if [ ! -x "$JAVACMD" ] ; then
+  echo "Error: JAVA_HOME is not defined correctly." >&2
+  echo "  We cannot execute $JAVACMD" >&2
+  exit 1
+fi
+
+if [ -z "$JAVA_HOME" ] ; then
+  echo "Warning: JAVA_HOME environment variable is not set."
+fi
+
+CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
+
+# traverses directory structure from process work directory to filesystem root
+# first directory with .mvn subdirectory is considered project base directory
+find_maven_basedir() {
+
+  if [ -z "$1" ]
+  then
+    echo "Path not specified to find_maven_basedir"
+    return 1
+  fi
+
+  basedir="$1"
+  wdir="$1"
+  while [ "$wdir" != '/' ] ; do
+    if [ -d "$wdir"/.mvn ] ; then
+      basedir=$wdir
+      break
+    fi
+    # workaround for JBEAP-8937 (on Solaris 10/Sparc)
+    if [ -d "${wdir}" ]; then
+      wdir=`cd "$wdir/.."; pwd`
+    fi
+    # end of workaround
+  done
+  echo "${basedir}"
+}
+
+# concatenates all lines of a file
+concat_lines() {
+  if [ -f "$1" ]; then
+    echo "$(tr -s '\n' ' ' < "$1")"
+  fi
+}
+
+BASE_DIR=`find_maven_basedir "$(pwd)"`
+if [ -z "$BASE_DIR" ]; then
+  exit 1;
+fi
+
+##########################################################################################
+# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+# This allows using the maven wrapper in projects that prohibit checking in binary data.
+##########################################################################################
+if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Found .mvn/wrapper/maven-wrapper.jar"
+    fi
+else
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
+    fi
+    if [ -n "$MVNW_REPOURL" ]; then
+      jarUrl="$MVNW_REPOURL/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+    else
+      jarUrl="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+    fi
+    while IFS="=" read key value; do
+      case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
+      esac
+    done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Downloading from: $jarUrl"
+    fi
+    wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
+    if $cygwin; then
+      wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"`
+    fi
+
+    if command -v wget > /dev/null; then
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Found wget ... using wget"
+        fi
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            wget "$jarUrl" -O "$wrapperJarPath"
+        else
+            wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath"
+        fi
+    elif command -v curl > /dev/null; then
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Found curl ... using curl"
+        fi
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            curl -o "$wrapperJarPath" "$jarUrl" -f
+        else
+            curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
+        fi
+
+    else
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Falling back to using Java to download"
+        fi
+        javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
+        # For Cygwin, switch paths to Windows format before running javac
+        if $cygwin; then
+          javaClass=`cygpath --path --windows "$javaClass"`
+        fi
+        if [ -e "$javaClass" ]; then
+            if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
+                if [ "$MVNW_VERBOSE" = true ]; then
+                  echo " - Compiling MavenWrapperDownloader.java ..."
+                fi
+                # Compiling the Java class
+                ("$JAVA_HOME/bin/javac" "$javaClass")
+            fi
+            if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
+                # Running the downloader
+                if [ "$MVNW_VERBOSE" = true ]; then
+                  echo " - Running MavenWrapperDownloader.java ..."
+                fi
+                ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
+            fi
+        fi
+    fi
+fi
+##########################################################################################
+# End of extension
+##########################################################################################
+
+export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
+if [ "$MVNW_VERBOSE" = true ]; then
+  echo $MAVEN_PROJECTBASEDIR
+fi
+MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME=`cygpath --path --windows "$M2_HOME"`
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
+  [ -n "$MAVEN_PROJECTBASEDIR" ] &&
+    MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"`
+fi
+
+# Provide a "standardized" way to retrieve the CLI args that will
+# work with both Windows and non-Windows executions.
+MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
+export MAVEN_CMD_LINE_ARGS
+
+WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+exec "$JAVACMD" \
+  $MAVEN_OPTS \
+  -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
+  "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
+  ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"

aws/aws-dynamodb/dynamodbspringdata/mvnw.cmd

@@ -0,0 +1,182 @@
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements.  See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership.  The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License.  You may obtain a copy of the License at
+@REM
+@REM    http://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied.  See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Maven Start Up Batch script
+@REM
+@REM Required ENV vars:
+@REM JAVA_HOME - location of a JDK home dir
+@REM
+@REM Optional ENV vars
+@REM M2_HOME - location of maven2's installed home dir
+@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
+@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending
+@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
+@REM     e.g. to debug Maven itself, use
+@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+@REM ----------------------------------------------------------------------------
+
+@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
+@echo off
+@REM set title of command window
+title %0
+@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on'
+@if "%MAVEN_BATCH_ECHO%" == "on"  echo %MAVEN_BATCH_ECHO%
+
+@REM set %HOME% to equivalent of $HOME
+if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
+
+@REM Execute a user defined script before this one
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
+@REM check for pre script, once with legacy .bat ending and once with .cmd ending
+if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat"
+if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd"
+:skipRcPre
+
+@setlocal
+
+set ERROR_CODE=0
+
+@REM To isolate internal variables from possible post scripts, we use another setlocal
+@setlocal
+
+@REM ==== START VALIDATION ====
+if not "%JAVA_HOME%" == "" goto OkJHome
+
+echo.
+echo Error: JAVA_HOME not found in your environment. >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+:OkJHome
+if exist "%JAVA_HOME%\bin\java.exe" goto init
+
+echo.
+echo Error: JAVA_HOME is set to an invalid directory. >&2
+echo JAVA_HOME = "%JAVA_HOME%" >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+@REM ==== END VALIDATION ====
+
+:init
+
+@REM Find the project base dir, i.e. the directory that contains the folder ".mvn".
+@REM Fallback to current working directory if not found.
+
+set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR%
+IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir
+
+set EXEC_DIR=%CD%
+set WDIR=%EXEC_DIR%
+:findBaseDir
+IF EXIST "%WDIR%"\.mvn goto baseDirFound
+cd ..
+IF "%WDIR%"=="%CD%" goto baseDirNotFound
+set WDIR=%CD%
+goto findBaseDir
+
+:baseDirFound
+set MAVEN_PROJECTBASEDIR=%WDIR%
+cd "%EXEC_DIR%"
+goto endDetectBaseDir
+
+:baseDirNotFound
+set MAVEN_PROJECTBASEDIR=%EXEC_DIR%
+cd "%EXEC_DIR%"
+
+:endDetectBaseDir
+
+IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig
+
+@setlocal EnableExtensions EnableDelayedExpansion
+for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a
+@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS%
+
+:endReadAdditionalConfig
+
+SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
+set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
+set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+
+FOR /F "tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
+    IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B
+)
+
+@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
+if exist %WRAPPER_JAR% (
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Found %WRAPPER_JAR%
+    )
+) else (
+    if not "%MVNW_REPOURL%" == "" (
+        SET DOWNLOAD_URL="%MVNW_REPOURL%/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+    )
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Couldn't find %WRAPPER_JAR%, downloading it ...
+        echo Downloading from: %DOWNLOAD_URL%
+    )
+
+    powershell -Command "&{"^
+		"$webclient = new-object System.Net.WebClient;"^
+		"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
+		"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
+		"}"^
+		"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^
+		"}"
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Finished downloading %WRAPPER_JAR%
+    )
+)
+@REM End of extension
+
+@REM Provide a "standardized" way to retrieve the CLI args that will
+@REM work with both Windows and non-Windows executions.
+set MAVEN_CMD_LINE_ARGS=%*
+
+%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
+if ERRORLEVEL 1 goto error
+goto end
+
+:error
+set ERROR_CODE=1
+
+:end
+@endlocal & set ERROR_CODE=%ERROR_CODE%
+
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost
+@REM check for post script, once with legacy .bat ending and once with .cmd ending
+if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat"
+if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd"
+:skipRcPost
+
+@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
+if "%MAVEN_BATCH_PAUSE%" == "on" pause
+
+if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE%
+
+exit /B %ERROR_CODE%

aws/aws-dynamodb/dynamodbspringdata/pom.xml

@@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>io.pratik</groupId>
+		<artifactId>dynamodbapp</artifactId>
+		<version>0.0.1-SNAPSHOT</version>
+	</parent>
+	<groupId>io.pratik</groupId>
+	<artifactId>dynamodbspringdata</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>dynamodbspringdata</name>
+	<description>Demo project for Spring Boot</description>
+	<properties>
+		<java.version>11</java.version>
+	</properties>
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>com.github.derjust</groupId>
+			<artifactId>spring-data-dynamodb</artifactId>
+			<version>5.1.0</version>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+	<dependencyManagement>
+		<dependencies>
+			<dependency>
+				<groupId>org.springframework.data</groupId>
+				<artifactId>spring-data-releasetrain</artifactId>
+				<version>Lovelace-SR1</version>
+				<type>pom</type>
+				<scope>import</scope>
+			</dependency>
+	        <dependency>
+	            <groupId>org.springframework.boot</groupId>
+	            <artifactId>spring-boot-dependencies</artifactId>
+	            <version>2.4.0</version>
+	            <type>pom</type>
+	            <scope>import</scope>
+	        </dependency>
+		</dependencies>
+	</dependencyManagement>
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+			<plugin>
+		        <artifactId>maven-compiler-plugin</artifactId>
+		        <version>3.5.1</version>
+		        <configuration>
+		            <source>11</source>
+		            <target>11</target>
+		        </configuration>
+			</plugin>						
+		</plugins>
+	</build>
+
+</project>

aws/aws-dynamodb/dynamodbspringdata/src/main/java/io/pratik/dynamodbspring/CustomerService.java

@@ -0,0 +1,26 @@
+/**
+ * 
+ */
+package io.pratik.dynamodbspring;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import io.pratik.dynamodbspring.models.Customer;
+import io.pratik.dynamodbspring.repositories.CustomerRepository;
+
+/**
+ * @author pratikdas
+ *
+ */
+@Service
+public class CustomerService {
+	
+	@Autowired
+	private CustomerRepository customerRepository;
+	
+	public void createCustomer(final Customer customer) {
+		customerRepository.save(customer);
+	}
+
+}

aws/aws-dynamodb/dynamodbspringdata/src/main/java/io/pratik/dynamodbspring/DynamodbspringApplication.java

@@ -0,0 +1,13 @@
+package io.pratik.dynamodbspring;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class DynamodbspringApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(DynamodbspringApplication.class, args);
+	}
+
+}

aws/aws-dynamodb/dynamodbspringdata/src/main/java/io/pratik/dynamodbspring/OrderService.java

@@ -0,0 +1,26 @@
+/**
+ * 
+ */
+package io.pratik.dynamodbspring;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import io.pratik.dynamodbspring.models.Order;
+import io.pratik.dynamodbspring.repositories.OrderRepository;
+
+/**
+ * @author pratikdas
+ *
+ */
+@Service
+public class OrderService {
+	
+	@Autowired
+	private OrderRepository orderRepository;
+	
+	public void createOrder(final Order order) {
+		orderRepository.save(order);
+	}
+
+}

aws/aws-dynamodb/dynamodbspringdata/src/main/java/io/pratik/dynamodbspring/config/AppConfig.java

@@ -0,0 +1,33 @@
+/**
+ * 
+ */
+package io.pratik.dynamodbspring.config;
+
+import org.socialsignin.spring.data.dynamodb.repository.config.EnableDynamoDBRepositories;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import com.amazonaws.auth.AWSCredentialsProvider;
+import com.amazonaws.auth.profile.ProfileCredentialsProvider;
+import com.amazonaws.services.dynamodbv2.AmazonDynamoDB;
+import com.amazonaws.services.dynamodbv2.AmazonDynamoDBClientBuilder;
+
+/**
+ * @author pratikdas
+ *
+ */
+@Configuration
+@EnableDynamoDBRepositories
+(basePackages = "io.pratik.dynamodbspring.repositories")
+public class AppConfig {
+
+    @Bean
+    public AmazonDynamoDB amazonDynamoDB() {
+        AWSCredentialsProvider credentials = new ProfileCredentialsProvider("pratikpoc");
+		AmazonDynamoDB amazonDynamoDB 
+          = AmazonDynamoDBClientBuilder.standard().withCredentials(credentials).build();
+        
+        return amazonDynamoDB;
+    }
+
+}

aws/aws-dynamodb/dynamodbspringdata/src/main/java/io/pratik/dynamodbspring/models/Customer.java

@@ -0,0 +1,53 @@
+/**
+ * 
+ */
+package io.pratik.dynamodbspring.models;
+
+import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBAttribute;
+import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBHashKey;
+import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBTable;
+
+/**
+ * @author pratikdas
+ *
+ */
+@DynamoDBTable(tableName = "Customer")
+public class Customer {
+	
+	private String customerID;
+	
+	private String name;
+	
+	private String email;
+
+	// Partition key
+    @DynamoDBHashKey(attributeName = "CustomerID")
+	public String getCustomerID() {
+		return customerID;
+	}
+
+	public void setCustomerID(String customerID) {
+		this.customerID = customerID;
+	}
+
+	@DynamoDBAttribute(attributeName = "Name")
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	@DynamoDBAttribute(attributeName = "Email")
+	public String getEmail() {
+		return email;
+	}
+
+	public void setEmail(String email) {
+		this.email = email;
+	}
+	
+	
+
+}

aws/aws-dynamodb/dynamodbspringdata/src/main/java/io/pratik/dynamodbspring/models/Order.java

@@ -0,0 +1,83 @@
+/**
+ * 
+ */
+package io.pratik.dynamodbspring.models;
+
+import java.time.Instant;
+
+import org.springframework.data.annotation.Id;
+
+import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBAttribute;
+import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBHashKey;
+import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBRangeKey;
+import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBTable;
+
+/**
+ * @author pratikdas
+ *
+ */
+@DynamoDBTable(tableName = "Order")
+public class Order {
+	private String customerID;
+	private String orderSerial;
+	private double orderValue;
+    private Instant createdDate;
+    
+    @Id
+	private OrderID orderID;
+    
+    
+    
+   public Order() {
+		super();
+	}
+// private List<Product> products;
+    
+	public Order(OrderID orderID) {
+		super();
+		this.orderID = orderID;
+	}
+	/*
+	 * public OrderID getOrderID() { return orderID; } public void
+	 * setOrderID(OrderID orderID) { this.orderID = orderID; }
+	 */
+	@DynamoDBHashKey(attributeName = "customerID")
+	public String getCustomerID() {
+		return customerID;
+	}
+	public void setCustomerID(String customerID) {
+      this.customerID = customerID;
+	}
+	
+	@DynamoDBRangeKey(attributeName = "orderID")
+	public String getOrderSerial() {
+		return orderSerial;
+	}
+	public void setOrderSerial(String orderSerial) {
+		this.orderSerial = orderSerial;
+	}
+	
+	@DynamoDBAttribute
+	public Instant getCreatedDate() {
+		return createdDate;
+	}
+	public void setCreatedDate(Instant createdDate) {
+		this.createdDate = createdDate;
+	}
+	
+	@DynamoDBAttribute
+	public double getOrderValue() {
+		return orderValue;
+	}
+	public void setOrderValue(double orderValue) {
+		this.orderValue = orderValue;
+	}
+	
+	/*@DynamoDBAttribute
+	public List<Product> getProducts() {
+		return products;
+	}
+	public void setProducts(List<Product> products) {
+		this.products = products;
+	}*/
+}

aws/aws-dynamodb/dynamodbspringdata/src/main/java/io/pratik/dynamodbspring/models/OrderID.java

@@ -0,0 +1,50 @@
+/**
+ * 
+ */
+package io.pratik.dynamodbspring.models;
+
+import java.io.Serializable;
+
+import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBHashKey;
+import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBRangeKey;
+
+/**
+ * @author pratikdas
+ *
+ */
+public class OrderID implements Serializable{
+	
+	private static final long serialVersionUID = 1L;
+	private String customerID;
+	private String orderSerial;
+	
+	public OrderID() {
+		super();
+		this.customerID = null;
+		this.orderSerial = null;
+	}
+	
+	public OrderID(String customerID, String orderSerial) {
+		super();
+		this.customerID = customerID;
+		this.orderSerial = orderSerial;
+	}
+	
+	@DynamoDBHashKey
+	public String getCustomerID() {
+		return customerID;
+	}
+	public void setCustomerID(String customerID) {
+		this.customerID = customerID;
+	}
+	
+	@DynamoDBRangeKey
+	public String getOrderSerial() {
+		return orderSerial;
+	}
+	public void setOrderSerial(String orderSerial) {
+		this.orderSerial = orderSerial;
+	}
+	
+	
+}

aws/aws-dynamodb/dynamodbspringdata/src/main/java/io/pratik/dynamodbspring/models/Product.java

@@ -0,0 +1,38 @@
+/**
+ * 
+ */
+package io.pratik.dynamodbspring.models;
+
+//import software.amazon.awssdk.enhanced.dynamodb.mapper.annotations.DynamoDbBean;
+
+/**
+ * @author pratikdas
+ *
+ */
+//@DynamoDbBean
+public class Product {
+	private String name;
+	private String brand;
+	private double price;
+	public String getName() {
+		return name;
+	}
+	public void setName(String name) {
+		this.name = name;
+	}
+	public String getBrand() {
+		return brand;
+	}
+	public void setBrand(String brand) {
+		this.brand = brand;
+	}
+	public double getPrice() {
+		return price;
+	}
+	public void setPrice(double price) {
+		this.price = price;
+	}
+	
+	
+
+}

aws/aws-dynamodb/dynamodbspringdata/src/main/java/io/pratik/dynamodbspring/repositories/CustomerRepository.java

@@ -0,0 +1,20 @@
+/**
+ * 
+ */
+package io.pratik.dynamodbspring.repositories;
+
+import org.socialsignin.spring.data.dynamodb.repository.EnableScan;
+import org.springframework.data.repository.CrudRepository;
+
+import io.pratik.dynamodbspring.models.Customer;
+
+/**
+ * @author pratikdas
+ *
+ */
+@EnableScan
+public interface CustomerRepository  extends 
+  CrudRepository<Customer, String> {
+    
+ 
+}

aws/aws-dynamodb/dynamodbspringdata/src/main/java/io/pratik/dynamodbspring/repositories/OrderRepository.java

@@ -0,0 +1,21 @@
+/**
+ * 
+ */
+package io.pratik.dynamodbspring.repositories;
+
+import org.socialsignin.spring.data.dynamodb.repository.EnableScan;
+import org.springframework.data.repository.CrudRepository;
+
+import io.pratik.dynamodbspring.models.Order;
+import io.pratik.dynamodbspring.models.OrderID;
+
+/**
+ * @author pratikdas
+ *
+ */
+@EnableScan
+public interface OrderRepository  extends 
+  CrudRepository<Order, OrderID> {
+    
+ 
+}

aws/aws-dynamodb/dynamodbspringdata/src/main/resources/application.properties

@@ -0,0 +1 @@
+

aws/aws-dynamodb/dynamodbspringdata/src/test/java/io/pratik/dynamodbspring/CustomerServiceTest.java

@@ -0,0 +1,48 @@
+/**
+ * 
+ */
+package io.pratik.dynamodbspring;
+
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+
+import io.pratik.dynamodbspring.models.Customer;
+
+/**
+ * @author pratikdas
+ *
+ */
+@SpringBootTest
+class CustomerServiceTest {
+
+	@Autowired
+	private CustomerService customerService;
+	
+	/**
+	 * @throws java.lang.Exception
+	 */
+	@BeforeEach
+	void setUp() throws Exception {
+	}
+
+	/**
+	 * @throws java.lang.Exception
+	 */
+	@AfterEach
+	void tearDown() throws Exception {
+	}
+
+	@Test
+	void testCreateCustomer() {
+		Customer customer = new Customer();		
+		customer.setCustomerID("CUST-001");
+		customer.setName("pratik");
+		customer.setEmail("hgjgjh");
+		customerService.createCustomer(customer);
+	}
+
+
+}

aws/aws-dynamodb/dynamodbspringdata/src/test/java/io/pratik/dynamodbspring/DynamodbspringApplicationTests.java

@@ -0,0 +1,13 @@
+package io.pratik.dynamodbspring;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class DynamodbspringApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}

aws/aws-dynamodb/dynamodbspringdata/target/classes/application.properties

@@ -0,0 +1 @@
+

aws/aws-dynamodb/dynamodbspringdata/target/maven-archiver/pom.properties

@@ -0,0 +1,5 @@
+#Generated by Maven
+#Thu Jun 03 12:13:08 GST 2021
+groupId=io.pratik
+artifactId=dynamodbspringdata
+version=0.0.1-SNAPSHOT

aws/aws-dynamodb/dynamodbspringdata/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst

@@ -0,0 +1,10 @@
+io/pratik/dynamodbspring/repositories/OrderRepository.class
+io/pratik/dynamodbspring/repositories/CustomerRepository.class
+io/pratik/dynamodbspring/CustomerService.class
+io/pratik/dynamodbspring/models/Product.class
+io/pratik/dynamodbspring/DynamodbspringApplication.class
+io/pratik/dynamodbspring/models/Order.class
+io/pratik/dynamodbspring/models/OrderID.class
+io/pratik/dynamodbspring/config/AppConfig.class
+io/pratik/dynamodbspring/OrderService.class
+io/pratik/dynamodbspring/models/Customer.class

aws/aws-dynamodb/dynamodbspringdata/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst

@@ -0,0 +1,10 @@
+/Users/pratikdas/pratik/code-examples/aws/aws-dynamodb/dynamodbspringdata/src/main/java/io/pratik/dynamodbspring/models/Order.java
+/Users/pratikdas/pratik/code-examples/aws/aws-dynamodb/dynamodbspringdata/src/main/java/io/pratik/dynamodbspring/models/Product.java
+/Users/pratikdas/pratik/code-examples/aws/aws-dynamodb/dynamodbspringdata/src/main/java/io/pratik/dynamodbspring/OrderService.java
+/Users/pratikdas/pratik/code-examples/aws/aws-dynamodb/dynamodbspringdata/src/main/java/io/pratik/dynamodbspring/models/OrderID.java
+/Users/pratikdas/pratik/code-examples/aws/aws-dynamodb/dynamodbspringdata/src/main/java/io/pratik/dynamodbspring/config/AppConfig.java
+/Users/pratikdas/pratik/code-examples/aws/aws-dynamodb/dynamodbspringdata/src/main/java/io/pratik/dynamodbspring/models/Customer.java
+/Users/pratikdas/pratik/code-examples/aws/aws-dynamodb/dynamodbspringdata/src/main/java/io/pratik/dynamodbspring/DynamodbspringApplication.java
+/Users/pratikdas/pratik/code-examples/aws/aws-dynamodb/dynamodbspringdata/src/main/java/io/pratik/dynamodbspring/repositories/CustomerRepository.java
+/Users/pratikdas/pratik/code-examples/aws/aws-dynamodb/dynamodbspringdata/src/main/java/io/pratik/dynamodbspring/repositories/OrderRepository.java
+/Users/pratikdas/pratik/code-examples/aws/aws-dynamodb/dynamodbspringdata/src/main/java/io/pratik/dynamodbspring/CustomerService.java

aws/aws-dynamodb/dynamodbspringdata/target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/createdFiles.lst

@@ -0,0 +1,2 @@
+io/pratik/dynamodbspring/DynamodbspringApplicationTests.class
+io/pratik/dynamodbspring/CustomerServiceTest.class

aws/aws-dynamodb/dynamodbspringdata/target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/inputFiles.lst

@@ -0,0 +1,2 @@
+/Users/pratikdas/pratik/code-examples/aws/aws-dynamodb/dynamodbspringdata/src/test/java/io/pratik/dynamodbspring/CustomerServiceTest.java
+/Users/pratikdas/pratik/code-examples/aws/aws-dynamodb/dynamodbspringdata/src/test/java/io/pratik/dynamodbspring/DynamodbspringApplicationTests.java

aws/aws-dynamodb/pom.xml

@@ -0,0 +1,11 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>io.pratik</groupId>
+  <artifactId>dynamodbapp</artifactId>
+  <version>0.0.1-SNAPSHOT</version>
+  <packaging>pom</packaging>
+  <modules>
+  	<module>dynamodbspringdata</module>
+    <module>dynamodbec</module>
+  </modules>
+</project>