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Split the first 2 modules: java-dates-conversion and java-dates-string.

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This commit is contained in:
Alessio Stalla
2019-09-17 19:13:21 +02:00
parent 9154f5e062
commit ed9463faa1
62 changed files with 158 additions and 48 deletions
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29
java-dates-2/.gitignore vendored
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*.class
0.*
#folders#
/target
/neoDb*
/data
/src/main/webapp/WEB-INF/classes
*/META-INF/*
.resourceCache
# Packaged files #
*.jar
*.war
*.ear
# Files generated by integration tests
*.txt
backup-pom.xml
/bin/
/temp
#IntelliJ specific
.idea/
*.iml
#jenv
.java-version

4
java-dates-2/README.md
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## Relevant Articles:
- [Converting Between LocalDate and XMLGregorianCalendar](https://www.baeldung.com/java-localdate-to-xmlgregoriancalendar)
- [Convert Time to Milliseconds in Java](https://www.baeldung.com/java-time-milliseconds)
- [Check If a String Is a Valid Date in Java](https://www.baeldung.com/java-string-valid-date)

70
java-dates-2/pom.xml
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<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<artifactId>java-dates-2</artifactId>
<version>0.1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>java-dates-2</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-java</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-java</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>${joda-time.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-validator/commons-validator -->
<dependency>
<groupId>commons-validator</groupId>
<artifactId>commons-validator</artifactId>
<version>${commons-validator.version}</version>
</dependency>
<!-- test scoped -->
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assertj.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>java-dates-2</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven-compiler-plugin.version}</version>
<configuration>
<source>${maven.compiler.source}</source>
<target>${maven.compiler.target}</target>
</configuration>
</plugin>
</plugins>
</build>
<properties>
<!-- testing -->
<assertj.version>3.6.1</assertj.version>
<joda-time.version>2.10</joda-time.version>
<commons-validator.version>1.6</commons-validator.version>
<maven.compiler.source>1.9</maven.compiler.source>
<maven.compiler.target>1.9</maven.compiler.target>
</properties>
</project>

5
java-dates-2/src/main/java/com/baeldung/date/validation/DateValidator.java
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package com.baeldung.date.validation;
public interface DateValidator {
boolean isValid(String dateStr);
}

11
java-dates-2/src/main/java/com/baeldung/date/validation/DateValidatorUsingApacheValidator.java
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package com.baeldung.date.validation;
import org.apache.commons.validator.GenericValidator;
public class DateValidatorUsingApacheValidator implements DateValidator {
@Override
public boolean isValid(String dateStr) {
return GenericValidator.isDate(dateStr, "yyyy-MM-dd", true);
}
}

25
java-dates-2/src/main/java/com/baeldung/date/validation/DateValidatorUsingDateFormat.java
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package com.baeldung.date.validation;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
public class DateValidatorUsingDateFormat implements DateValidator {
private String dateFormat;
public DateValidatorUsingDateFormat(String dateFormat) {
this.dateFormat = dateFormat;
}
@Override
public boolean isValid(String dateStr) {
DateFormat sdf = new SimpleDateFormat(this.dateFormat);
sdf.setLenient(false);
try {
sdf.parse(dateStr);
} catch (ParseException e) {
return false;
}
return true;
}
}

22
java-dates-2/src/main/java/com/baeldung/date/validation/DateValidatorUsingDateTimeFormatter.java
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package com.baeldung.date.validation;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeParseException;
public class DateValidatorUsingDateTimeFormatter implements DateValidator {
private DateTimeFormatter dateFormatter;
public DateValidatorUsingDateTimeFormatter(DateTimeFormatter dateFormatter) {
this.dateFormatter = dateFormatter;
}
@Override
public boolean isValid(String dateStr) {
try {
this.dateFormatter.parse(dateStr);
} catch (DateTimeParseException e) {
return false;
}
return true;
}
}

23
java-dates-2/src/main/java/com/baeldung/date/validation/DateValidatorUsingLocalDate.java
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package com.baeldung.date.validation;
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeParseException;
public class DateValidatorUsingLocalDate implements DateValidator {
private DateTimeFormatter dateFormatter;
public DateValidatorUsingLocalDate(DateTimeFormatter dateFormatter) {
this.dateFormatter = dateFormatter;
}
@Override
public boolean isValid(String dateStr) {
try {
LocalDate.parse(dateStr, this.dateFormatter);
} catch (DateTimeParseException e) {
return false;
}
return true;
}
}

59
java-dates-2/src/test/java/com/baeldung/convert/ConvertDateTimeUnitTest.java
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package com.baeldung.convert;
import org.joda.time.Instant;
import org.junit.Assert;
import org.junit.Test;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.util.Calendar;
import java.util.Date;
public class ConvertDateTimeUnitTest {
public final long millis = 1556175797428L;
@Test
public void givenLocalDateTime_WhenToEpochMillis_ThenMillis() {
ZoneId id = ZoneId.systemDefault();
LocalDateTime localDateTime =
LocalDateTime.ofInstant(java.time.Instant.ofEpochMilli(millis), id);
ZonedDateTime zdt = ZonedDateTime.of(localDateTime, id);
Assert.assertEquals(millis, zdt.toInstant().toEpochMilli());
}
@Test
public void givenJava8Instant_WhenGToEpochMillis_ThenMillis() {
java.time.Instant instant = java.time.Instant.ofEpochMilli(millis);
Assert.assertEquals(millis, instant.toEpochMilli());
}
@Test
public void givenDate_WhenGetTime_ThenMillis() {
Date date = new Date(millis);
Assert.assertEquals(millis, date.getTime());
}
@Test
public void givenCalendar_WhenGetTimeInMillis_ThenMillis() {
Calendar calendar = Calendar.getInstance();
calendar.setTime(new Date(millis));
Assert.assertEquals(millis, calendar.getTimeInMillis());
}
@Test
public void givenJodaInstant_WhenGetMillis_ThenMillis() {
Instant jodaInstant = Instant.ofEpochMilli(millis);
Assert.assertEquals(millis, jodaInstant.getMillis());
}
@Test
public void givenJODADateTime_WhenGetMillis_ThenMillis() {
org.joda.time.DateTime jodaDateTime = new org.joda.time.DateTime(millis);
Assert.assertEquals(millis, jodaDateTime.getMillis());
}
}

20
java-dates-2/src/test/java/com/baeldung/date/validation/DateValidatorUsingApacheValidatorUnitTest.java
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package com.baeldung.date.validation;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import org.apache.commons.validator.GenericValidator;
import org.junit.Test;
public class DateValidatorUsingApacheValidatorUnitTest {
@Test
public void whenValidDatePassed_ThenTrue() {
assertTrue(GenericValidator.isDate("2019-02-28", "yyyy-MM-dd", true));
}
@Test
public void whenInvalidDatePassed_ThenFalse() {
assertFalse(GenericValidator.isDate("2019-02-29", "yyyy-MM-dd", true));
}
}

23
java-dates-2/src/test/java/com/baeldung/date/validation/DateValidatorUsingDateFormatUnitTest.java
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package com.baeldung.date.validation;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
public class DateValidatorUsingDateFormatUnitTest {
@Test
public void givenValidator_whenValidDatePassed_ThenTrue() {
DateValidator validator = new DateValidatorUsingDateFormat("MM/dd/yyyy");
assertTrue(validator.isValid("02/28/2019"));
}
@Test
public void givenValidator_whenInvalidDatePassed_ThenFalse() {
DateValidator validator = new DateValidatorUsingDateFormat("MM/dd/yyyy");
assertFalse(validator.isValid("02/30/2019"));
}
}

32
java-dates-2/src/test/java/com/baeldung/date/validation/DateValidatorUsingDateTimeFormatterUnitTest.java
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package com.baeldung.date.validation;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.time.format.DateTimeFormatter;
import java.time.format.ResolverStyle;
import java.util.Locale;
import org.junit.Test;
public class DateValidatorUsingDateTimeFormatterUnitTest {
@Test
public void givenValidator_whenValidDatePassed_ThenTrue() {
DateTimeFormatter dateFormatter = DateTimeFormatter.ofPattern("uuuu-MM-dd", Locale.US)
.withResolverStyle(ResolverStyle.STRICT);
DateValidator validator = new DateValidatorUsingDateTimeFormatter(dateFormatter);
assertTrue(validator.isValid("2019-02-28"));
}
@Test
public void givenValidator_whenInValidDatePassed_ThenFalse() {
DateTimeFormatter dateFormatter = DateTimeFormatter.ofPattern("uuuu-MM-dd", Locale.US)
.withResolverStyle(ResolverStyle.STRICT);
DateValidator validator = new DateValidatorUsingDateTimeFormatter(dateFormatter);
assertFalse(validator.isValid("2019-02-30"));
}
}

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java-dates-2/src/test/java/com/baeldung/date/validation/DateValidatorUsingLocalDateUnitTest.java
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package com.baeldung.date.validation;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.time.format.DateTimeFormatter;
import org.junit.Test;
public class DateValidatorUsingLocalDateUnitTest {
@Test
public void givenValidator_whenValidDatePassed_ThenTrue() {
DateTimeFormatter dateFormatter = DateTimeFormatter.BASIC_ISO_DATE;
DateValidator validator = new DateValidatorUsingLocalDate(dateFormatter);
assertTrue(validator.isValid("20190228"));
}
@Test
public void givenValidator_whenInValidDatePassed_ThenFalse() {
DateTimeFormatter dateFormatter = DateTimeFormatter.BASIC_ISO_DATE;
DateValidator validator = new DateValidatorUsingLocalDate(dateFormatter);
assertFalse(validator.isValid("20190230"));
}
}

36
java-dates-2/src/test/java/com/baeldung/xmlgregoriancalendar/XmlGregorianCalendarConverterUnitTest.java
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package com.baeldung.xmlgregoriancalendar;
import org.junit.Test;
import javax.xml.datatype.DatatypeConfigurationException;
import javax.xml.datatype.DatatypeConstants;
import javax.xml.datatype.DatatypeFactory;
import javax.xml.datatype.XMLGregorianCalendar;
import java.time.LocalDate;
import static org.assertj.core.api.Assertions.assertThat;
public class XmlGregorianCalendarConverterUnitTest {
@Test
public void fromLocalDateToXMLGregorianCalendar() throws DatatypeConfigurationException {
LocalDate localDate = LocalDate.of(2017, 4, 25);
XMLGregorianCalendar xmlGregorianCalendar = DatatypeFactory.newInstance().newXMLGregorianCalendar(localDate.toString());
assertThat(xmlGregorianCalendar.getYear()).isEqualTo(localDate.getYear());
assertThat(xmlGregorianCalendar.getMonth()).isEqualTo(localDate.getMonthValue());
assertThat(xmlGregorianCalendar.getDay()).isEqualTo(localDate.getDayOfMonth());
assertThat(xmlGregorianCalendar.getTimezone()).isEqualTo(DatatypeConstants.FIELD_UNDEFINED);
}
@Test
public void fromXMLGregorianCalendarToLocalDate() throws DatatypeConfigurationException {
XMLGregorianCalendar xmlGregorianCalendar = DatatypeFactory.newInstance().newXMLGregorianCalendar("2017-04-25");
LocalDate localDate = LocalDate.of(xmlGregorianCalendar.getYear(), xmlGregorianCalendar.getMonth(), xmlGregorianCalendar.getDay());
assertThat(localDate.getYear()).isEqualTo(xmlGregorianCalendar.getYear());
assertThat(localDate.getMonthValue()).isEqualTo(xmlGregorianCalendar.getMonth());
assertThat(localDate.getDayOfMonth()).isEqualTo(xmlGregorianCalendar.getDay());
}
}