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* Adds hibernate search example application

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murtuza-ranapur
2020-09-16 18:26:35 +05:30
parent 1eabfebeb0
commit 07265e54ed
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spring-boot/hibernate-search/HELP.md Normal file
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# Getting Started
### Reference Documentation
For further reference, please consider the following sections:
* [Official Gradle documentation](https://docs.gradle.org)
* [Spring Boot Gradle Plugin Reference Guide](https://docs.spring.io/spring-boot/docs/2.3.3.RELEASE/gradle-plugin/reference/html/)
* [Create an OCI image](https://docs.spring.io/spring-boot/docs/2.3.3.RELEASE/gradle-plugin/reference/html/#build-image)
* [Spring Web](https://docs.spring.io/spring-boot/docs/2.3.3.RELEASE/reference/htmlsingle/#boot-features-developing-web-applications)
* [Spring Data JPA](https://docs.spring.io/spring-boot/docs/2.3.3.RELEASE/reference/htmlsingle/#boot-features-jpa-and-spring-data)
### 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/)
* [Accessing Data with JPA](https://spring.io/guides/gs/accessing-data-jpa/)
### Additional Links
These additional references should also help you:
* [Gradle Build Scans – insights for your project's build](https://scans.gradle.com#gradle)

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spring-boot/hibernate-search/build.gradle Normal file
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plugins {
id 'org.springframework.boot' version '2.2.2.RELEASE'
id 'io.spring.dependency-management' version '1.0.10.RELEASE'
id 'java'
}
group = 'io.reflectoring'
version = '1.0.0'
sourceCompatibility = '11'
configurations {
compileOnly {
extendsFrom annotationProcessor
}
}
repositories {
mavenCentral()
}
dependencies {
implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
implementation 'org.springframework.boot:spring-boot-starter-web'
implementation 'org.hibernate:hibernate-search-orm:5.11.5.Final'
implementation 'org.hibernate:hibernate-search-elasticsearch:5.11.5.Final'
implementation 'org.mapstruct:mapstruct:1.3.1.Final'
compileOnly 'org.projectlombok:lombok'
runtimeOnly 'com.h2database:h2'
annotationProcessor 'org.projectlombok:lombok'
annotationProcessor 'org.mapstruct:mapstruct-processor:1.3.1.Final'
testImplementation('org.springframework.boot:spring-boot-starter-test') {
exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
}
}
test {
useJUnitPlatform()
}

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spring-boot/hibernate-search/gradle/wrapper/gradle-wrapper.jar vendored Normal file
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spring-boot/hibernate-search/gradle/wrapper/gradle-wrapper.properties vendored Normal file
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#Mon Sep 07 12:46:19 IST 2020
distributionUrl=https\://services.gradle.org/distributions/gradle-6.4.1-all.zip
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStorePath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME

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spring-boot/hibernate-search/gradlew vendored Normal file
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#!/usr/bin/env sh
#
# Copyright 2015 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
#
# https://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.
#
##############################################################################
##
## Gradle start up script for UN*X
##
##############################################################################
# Attempt to set APP_HOME
# Resolve links: $0 may be a link
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
SAVED="$(pwd)"
cd "$(dirname \"$PRG\")/" >/dev/null
APP_HOME="$(pwd -P)"
cd "$SAVED" >/dev/null
APP_NAME="Gradle"
APP_BASE_NAME=$(basename "$0")
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD="maximum"
warn() {
echo "$*"
}
die() {
echo
echo "$*"
echo
exit 1
}
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "$(uname)" in
CYGWIN*)
cygwin=true
;;
Darwin*)
darwin=true
;;
MINGW*)
msys=true
;;
NONSTOP*)
nonstop=true
;;
esac
CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
# Determine the Java command to use to start the JVM.
if [ -n "$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="$JAVA_HOME/bin/java"
fi
if [ ! -x "$JAVACMD" ]; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD="java"
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
# Increase the maximum file descriptors if we can.
if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ]; then
MAX_FD_LIMIT=$(ulimit -H -n)
if [ $? -eq 0 ]; then
if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ]; then
MAX_FD="$MAX_FD_LIMIT"
fi
ulimit -n $MAX_FD
if [ $? -ne 0 ]; then
warn "Could not set maximum file descriptor limit: $MAX_FD"
fi
else
warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
fi
fi
# For Darwin, add options to specify how the application appears in the dock
if $darwin; then
GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
fi
# For Cygwin or MSYS, switch paths to Windows format before running java
if [ "$cygwin" = "true" -o "$msys" = "true" ]; then
APP_HOME=$(cygpath --path --mixed "$APP_HOME")
CLASSPATH=$(cygpath --path --mixed "$CLASSPATH")
JAVACMD=$(cygpath --unix "$JAVACMD")
# We build the pattern for arguments to be converted via cygpath
ROOTDIRSRAW=$(find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null)
SEP=""
for dir in $ROOTDIRSRAW; do
ROOTDIRS="$ROOTDIRS$SEP$dir"
SEP="|"
done
OURCYGPATTERN="(^($ROOTDIRS))"
# Add a user-defined pattern to the cygpath arguments
if [ "$GRADLE_CYGPATTERN" != "" ]; then
OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
fi
# Now convert the arguments - kludge to limit ourselves to /bin/sh
i=0
for arg in "$@"; do
CHECK=$(echo "$arg" | egrep -c "$OURCYGPATTERN" -)
CHECK2=$(echo "$arg" | egrep -c "^-") ### Determine if an option
if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ]; then ### Added a condition
eval $(echo args$i)=$(cygpath --path --ignore --mixed "$arg")
else
eval $(echo args$i)="\"$arg\""
fi
i=$(expr $i + 1)
done
case $i in
0) set -- ;;
1) set -- "$args0" ;;
2) set -- "$args0" "$args1" ;;
3) set -- "$args0" "$args1" "$args2" ;;
4) set -- "$args0" "$args1" "$args2" "$args3" ;;
5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
esac
fi
# Escape application args
save() {
for i; do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/"; done
echo " "
}
APP_ARGS=$(save "$@")
# Collect all arguments for the java command, following the shell quoting and substitution rules
eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
exec "$JAVACMD" "$@"

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@rem
@rem Copyright 2015 the original author or authors.
@rem
@rem Licensed under the Apache License, Version 2.0 (the "License");
@rem you may not use this file except in compliance with the License.
@rem You may obtain a copy of the License at
@rem
@rem https://www.apache.org/licenses/LICENSE-2.0
@rem
@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@rem
@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@rem Gradle startup script for Windows
@rem
@rem ##########################################################################
@rem Set local scope for the variables with windows NT shell
if "%OS%"=="Windows_NT" setlocal
set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%
@rem Resolve any "." and ".." in APP_HOME to make it shorter.
for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome
set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if "%ERRORLEVEL%" == "0" goto init
echo.
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
if exist "%JAVA_EXE%" goto init
echo.
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:init
@rem Get command-line arguments, handling Windows variants
if not "%OS%" == "Windows_NT" goto win9xME_args
:win9xME_args
@rem Slurp the command line arguments.
set CMD_LINE_ARGS=
set _SKIP=2
:win9xME_args_slurp
if "x%~1" == "x" goto execute
set CMD_LINE_ARGS=%*
:execute
@rem Setup the command line
set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
:end
@rem End local scope for the variables with windows NT shell
if "%ERRORLEVEL%"=="0" goto mainEnd
:fail
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
rem the _cmd.exe /c_ return code!
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
exit /b 1
:mainEnd
if "%OS%"=="Windows_NT" endlocal
:omega

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rootProject.name = 'hibernate-search'

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spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/HibernateSearchApplication.java Normal file
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package io.reflectoring.hibernatesearch;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class HibernateSearchApplication {
public static void main(String[] args) {
SpringApplication.run(HibernateSearchApplication.class, args);
}
}

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spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/configuration/StartupEvent.java Normal file
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package io.reflectoring.hibernatesearch.configuration;
import io.reflectoring.hibernatesearch.service.IndexingService;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.context.event.ApplicationReadyEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.stereotype.Component;
@Component
@Slf4j
@RequiredArgsConstructor
public class StartupEvent implements ApplicationListener<ApplicationReadyEvent> {
private final IndexingService service;
@Override
public void onApplicationEvent(ApplicationReadyEvent event) {
try {
service.initiateIndexing();
} catch (InterruptedException e) {
log.error("Failed to reindex entities ",e);
}
}
}

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spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/controller/IndexController.java Normal file
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package io.reflectoring.hibernatesearch.controller;
import io.reflectoring.hibernatesearch.controller.dto.PostResponse;
import io.reflectoring.hibernatesearch.controller.dto.UserResponse;
import io.reflectoring.hibernatesearch.controller.mapper.PostMapper;
import io.reflectoring.hibernatesearch.controller.mapper.UserMapper;
import io.reflectoring.hibernatesearch.service.IndexingService;
import io.reflectoring.hibernatesearch.service.SearchService;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
import java.util.stream.Collectors;
@RestController
@Slf4j
@RequiredArgsConstructor
class IndexController {
private final IndexingService indexingService;
private final SearchService searchService;
private final PostMapper postMapper;
private final UserMapper userMapper;
@PostMapping("/reindex")
public void reindex() throws InterruptedException {
indexingService.initiateIndexing();
}
@GetMapping("/user")
public List<UserResponse> getUser(@RequestParam String first,
@RequestParam Integer max,
@RequestParam Integer page){
return searchService.getUserByFirst(first, max, page)
.stream().map(userMapper::toResponse).collect(Collectors.toList());
}
@GetMapping("/user/projection")
public List<UserResponse> getProjectUser(@RequestParam String first,
@RequestParam Integer max,
@RequestParam Integer page){
return searchService.getUserByFirstWithProjection(first, max, page)
.stream().map(userMapper::toResponse).collect(Collectors.toList());
}
@GetMapping("/post")
public List<PostResponse> getPost(@RequestParam Long likeCount,
@RequestParam(required = false) String hashTags,
@RequestParam(required = false) String tag){
return searchService.getBasedOnLikeCountTags(likeCount, hashTags, tag)
.stream().map(postMapper::toResponse).collect(Collectors.toList());
}
@GetMapping("/post/word")
public List<PostResponse> getPostByWord(@RequestParam String word){
return searchService.getPostBasedOnWord(word)
.stream().map(postMapper::toResponse).collect(Collectors.toList());
}
}

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spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/controller/dto/PostResponse.java Normal file
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package io.reflectoring.hibernatesearch.controller.dto;
import io.reflectoring.hibernatesearch.domain.Tag;
import lombok.Getter;
import lombok.Setter;
import java.time.LocalDateTime;
@Getter
@Setter
public class PostResponse {
private String id;
private String body;
private UserResponse user;
private Tag tag;
private String imageUrl;
private String imageDescription;
private String hashTags;
private long likeCount;
private LocalDateTime createdAt;
}

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spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/controller/dto/UserResponse.java Normal file
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package io.reflectoring.hibernatesearch.controller.dto;
import lombok.Getter;
import lombok.Setter;
@Getter
@Setter
public class UserResponse {
private String id;
private String first;
private String middle;
private String last;
private Integer age;
}

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spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/controller/mapper/PostMapper.java Normal file
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package io.reflectoring.hibernatesearch.controller.mapper;
import io.reflectoring.hibernatesearch.controller.dto.PostResponse;
import io.reflectoring.hibernatesearch.domain.Post;
import org.mapstruct.Mapper;
@Mapper(componentModel = "spring", uses = UserMapper.class)
public interface PostMapper {
PostResponse toResponse(Post post);
}

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spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/controller/mapper/UserMapper.java Normal file
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package io.reflectoring.hibernatesearch.controller.mapper;
import io.reflectoring.hibernatesearch.controller.dto.UserResponse;
import io.reflectoring.hibernatesearch.domain.User;
import org.mapstruct.Mapper;
@Mapper(componentModel = "spring")
public interface UserMapper {
UserResponse toResponse(User user);
}

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spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/domain/Post.java Normal file
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package io.reflectoring.hibernatesearch.domain;
import lombok.Getter;
import lombok.Setter;
import org.apache.lucene.analysis.core.LowerCaseFilterFactory;
import org.hibernate.search.annotations.*;
import javax.persistence.*;
import java.time.LocalDateTime;
@Getter
@Setter
@Entity
@Indexed(index = "idx_post")
@NormalizerDef(name = "lower",
filters = @TokenFilterDef(factory = LowerCaseFilterFactory.class))
public class Post {
@Id
private String id;
@Field(name = "body")
@Field(name = "bodyFiltered", analyzer = @Analyzer(definition = "stop"))
private String body;
@ManyToOne
@IndexedEmbedded
private User user;
@Field(normalizer = @Normalizer(definition = "lower"))
@Enumerated(EnumType.STRING)
private Tag tag;
private String imageUrl;
private String imageDescription;
@Field
private String hashTags;
@Field
@SortableField
private long likeCount;
@Field(analyze = Analyze.NO)
@SortableField
private LocalDateTime createdAt;
}

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spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/domain/Tag.java Normal file
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package io.reflectoring.hibernatesearch.domain;
public enum Tag {
MOVIE,
MUSIC,
LITERATURE
}

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spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/domain/User.java Normal file
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package io.reflectoring.hibernatesearch.domain;
import lombok.Getter;
import lombok.Setter;
import org.hibernate.search.annotations.*;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import java.util.List;
@Getter
@Setter
@Entity
@Indexed(index = "idx_user")
public class User {
@Id
private String id;
@Field(store = Store.YES)
@Field(name = "fullName")
private String first;
@Field(index = Index.NO)
private String middle;
@Field
@Field(name = "fullName")
private String last;
@Field
private Integer age;
@ContainedIn
@OneToMany(mappedBy = "user")
private List<Post> post;
}

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spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/service/IndexingService.java Normal file
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package io.reflectoring.hibernatesearch.service;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.hibernate.search.jpa.FullTextEntityManager;
import org.hibernate.search.jpa.Search;
import org.springframework.stereotype.Service;
import javax.persistence.EntityManager;
import javax.transaction.Transactional;
@Service
@RequiredArgsConstructor
@Slf4j
public class IndexingService {
private final EntityManager em;
@Transactional
public void initiateIndexing() throws InterruptedException {
log.info("Initiating indexing...");
FullTextEntityManager fullTextEntityManager = Search.getFullTextEntityManager(em);
fullTextEntityManager.createIndexer().startAndWait();
log.info("All entities indexed");
}
}

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spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/service/SearchService.java Normal file
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package io.reflectoring.hibernatesearch.service;
import io.reflectoring.hibernatesearch.domain.Post;
import io.reflectoring.hibernatesearch.domain.User;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.apache.lucene.search.Query;
import org.hibernate.search.jpa.FullTextEntityManager;
import org.hibernate.search.jpa.FullTextQuery;
import org.hibernate.search.jpa.Search;
import org.hibernate.search.query.dsl.QueryBuilder;
import org.springframework.stereotype.Component;
import javax.persistence.EntityManager;
import java.util.ArrayList;
import java.util.List;
@Component
@Slf4j
@RequiredArgsConstructor
public class SearchService {
private final EntityManager entityManager;
public List<Post> getBasedOnLikeCountTags(Long likeCount, String hashTags, String tag){
FullTextEntityManager fullTextEntityManager = Search.getFullTextEntityManager(entityManager);
QueryBuilder qb = fullTextEntityManager.getSearchFactory().buildQueryBuilder()
.forEntity(Post.class)
.get();
Query likeCountGreater = qb.range().onField("likeCount").above(likeCount).createQuery();
Query hashTagsQuery = qb.keyword().onField("hashTags").matching(hashTags).createQuery();
Query tagQuery = qb.keyword().onField("tag").matching(tag).createQuery();
Query finalQuery = qb.bool().must(likeCountGreater).should(tagQuery).should(hashTagsQuery).createQuery();
FullTextQuery fullTextQuery = fullTextEntityManager.createFullTextQuery(finalQuery, Post.class);
fullTextQuery.setSort(qb.sort().byScore().createSort());
return (List<Post>) fullTextQuery.getResultList();
}
public List<Post> getPostBasedOnWord(String word){
FullTextEntityManager fullTextEntityManager = Search.getFullTextEntityManager(entityManager);
QueryBuilder qb = fullTextEntityManager.getSearchFactory().buildQueryBuilder()
.forEntity(Post.class)
.get();
Query foodQuery = qb.keyword().onFields("bodyFiltered","hashTags").matching(word).createQuery();
FullTextQuery fullTextQuery = fullTextEntityManager.createFullTextQuery(foodQuery, Post.class);
return (List<Post>) fullTextQuery.getResultList();
}
public List<User> getUserByFirst(String first, int max, int page){
FullTextEntityManager fullTextEntityManager = Search.getFullTextEntityManager(entityManager);
QueryBuilder qb = fullTextEntityManager.getSearchFactory().buildQueryBuilder()
.forEntity(User.class)
.get();
Query similarToUser = qb.keyword().wildcard().onField("first")
.matching(first).createQuery();
Query finalQuery = qb.bool().must(similarToUser).createQuery();
FullTextQuery fullTextQuery = fullTextEntityManager.createFullTextQuery(finalQuery, User.class);
fullTextQuery.setSort(qb.sort().byField("age").desc().andByScore().createSort());
fullTextQuery.setMaxResults(max);
fullTextQuery.setFirstResult(page);
return (List<User>) fullTextQuery.getResultList();
}
public List<User> getUserByFirstWithProjection(String first, int max, int page){
FullTextEntityManager fullTextEntityManager = Search.getFullTextEntityManager(entityManager);
QueryBuilder qb = fullTextEntityManager.getSearchFactory().buildQueryBuilder()
.forEntity(User.class)
.get();
Query similarToUser = qb.keyword().fuzzy().withEditDistanceUpTo(3).onField("first")
.matching(first).createQuery();
Query finalQuery = qb.bool().must(similarToUser).createQuery();
FullTextQuery fullTextQuery = fullTextEntityManager.createFullTextQuery(finalQuery, User.class);
fullTextQuery.setProjection(FullTextQuery.ID, "first","last","middle","age");
fullTextQuery.setSort(qb.sort().byField("age").desc().andByScore().createSort());
fullTextQuery.setMaxResults(max);
fullTextQuery.setFirstResult(page);
return getUserList(fullTextQuery.getResultList());
}
private List<User> getUserList(List<Object[]> resultList) {
List<User> users = new ArrayList<>();
for (Object[] objects : resultList) {
User user = new User();
user.setId((String) objects[0]);
user.setFirst((String) objects[1]);
user.setLast((String) objects[2]);
user.setMiddle((String) objects[3]);
user.setAge((Integer) objects[4]);
users.add(user);
}
return users;
}
}

15
spring-boot/hibernate-search/src/main/resources/application.yml Normal file
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spring:
jpa:
show-sql: true
generate-ddl: true
hibernate:
ddl-auto: create-drop
properties:
hibernate:
search:
default:
indexmanager: elasticsearch
elasticsearch:
host: http://192.168.0.103:9200
index_schema_management_strategy: drop-and-create
required_index_status: yellow

47
spring-boot/hibernate-search/src/main/resources/data.sql Normal file
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insert into user (id, first, last, middle, age) values ( 'c_1', 'John', 'Doe', 'Maven' , 31);
insert into user (id, first, last, middle, age) values ( 'c_2', 'Jane', 'Dove', 'Gradle', 41);
insert into post (id, body, created_at, hash_tags, image_description, image_url, like_count, tag, user_id)
values ( 'p_1', 'The tattered work gloves speak of the many hours of hard labor he endured throughout his life', now(),
'#work#labour', 'Office', 'uri://sample1', 20, 'LITERATURE', 'c_1' );
insert into post (id, body, created_at, hash_tags, image_description, image_url, like_count, tag, user_id)
values ( 'p_2', 'Dolores wouldn''t have eaten the meal if she had known what it actually was.', now(),
'#food', 'Office', 'uri://sample1', 7686, 'MUSIC', 'c_1' );
insert into post (id, body, created_at, hash_tags, image_description, image_url, like_count, tag, user_id)
values ( 'p_3', 'It caught him off guard that space smelled of seared steak.', now(),
'#food#stale#caughtinact', 'Office', 'uri://sample1', 1234, 'LITERATURE', 'c_1' );
insert into post (id, body, created_at, hash_tags, image_description, image_url, like_count, tag, user_id)
values ( 'p_4', '25 years later, she still regretted that specific moment.', now(),
'#ages', 'Office', 'uri://sample1', 679, 'MOVIE', 'c_1' );
insert into post (id, body, created_at, hash_tags, image_description, image_url, like_count, tag, user_id)
values ( 'p_5', 'She had a habit of taking showers in lemonade.', now(),
'#bath', 'Office', 'uri://sample1', 23, 'LITERATURE', 'c_1' );
insert into post (id, body, created_at, hash_tags, image_description, image_url, like_count, tag, user_id)
values ( 'p_6', 'She is never happy until she finds something to be unhappy about; then, she is overjoyed.', now(),
'#feelings', 'Office', 'uri://sample1', 4569877, 'MOVIE', 'c_2' );
insert into post (id, body, created_at, hash_tags, image_description, image_url, like_count, tag, user_id)
values ( 'p_7', 'They throw cabbage that turns your brain into emotional baggage.', now(),
'#food', 'Office', 'uri://sample1', 1000, 'MUSIC', 'c_2' );
insert into post (id, body, created_at, hash_tags, image_description, image_url, like_count, tag, user_id)
values ( 'p_8', 'There''s a message for you if you look up.', now(),
'#message', 'Office', 'uri://sample1', 20, 'LITERATURE', 'c_2' );
insert into post (id, body, created_at, hash_tags, image_description, image_url, like_count, tag, user_id)
values ( 'p_9', 'Please wait outside of the house.', now(),
'#house#labour', 'Office', 'uri://sample1', 40, 'MUSIC', 'c_2' );
insert into post (id, body, created_at, hash_tags, image_description, image_url, like_count, tag, user_id)
values ( 'p_10', 'Honestly, I didn''t care much for the first season, so I didn''t bother with the second.', now(),
'#honest#season#time', 'Office', 'uri://sample1', 20000, 'MOVIE', 'c_2' );

13
spring-boot/hibernate-search/src/test/java/io/reflectoring/hibernatesearch/HibernateSearchApplicationTests.java Normal file
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package io.reflectoring.hibernatesearch;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
@SpringBootTest
class HibernateSearchApplicationTests {
@Test
void contextLoads() {
}
}