liferay-journal-article-converter

This project converts a Liferay Journal Article to a Custom Java Object.

What is behind?

This project help me in my day to day work, where I have to convert a generic JournalArticle instance content in something that I can directly use in REST. You can also use this library to do data migration.

Install

If you use Maven to manage the dependencies in your Java project (and you should!), you do not need to download; just place the following into your POM's section:

<dependency>
  <!-- Liferay Journal Article Converter library -->
  <groupId>com.github.davidepastore</groupId>
  <artifactId>liferay-journal-article-converter</artifactId>
  <version>0.1.0</version>
</dependency>

Usage

Basic Example

First inspect your Journal Article XML structure.

<?xml version="1.0"?>

<root available-locales="en_US,ca_ES" default-locale="en_US">
	<dynamic-element name="text" type="text" index-type="keyword" index="0">
		<dynamic-content language-id="en_US"><![CDATA[English]]></dynamic-content>
		<dynamic-content language-id="ca_ES"><![CDATA[Catalan]]></dynamic-content>
	</dynamic-element>
	<dynamic-element name="aBoolean" type="boolean" index-type="keyword" index="0">
		<dynamic-content language-id="en_US"><![CDATA[true]]></dynamic-content>
		<dynamic-content language-id="ca_ES"><![CDATA[]]></dynamic-content>
	</dynamic-element>
</root>

After create your Java Object that extends the ConvertibleJournalArticle object.

public class Foo extends ConvertibleJournalArticle {

	@JournalArticleField(title = true)
	private String title;

	@JournalArticleField(name = "text")
	private String text;

	@JournalArticleField(name = "aBoolean")
	private Boolean myMagicBoolean;
	
	
	public String getTitle() {
		return title;
	}

	public void setTitle(String title) {
		this.title = title;
	}

	public String getText() {
		return text;
	}

	public void setText(String text) {
		this.text = text;
	}

	public Boolean getMyMagicBoolean() {
		return myMagicBoolean;
	}

	public void setMyMagicBoolean(Boolean myMagicBoolean) {
		this.myMagicBoolean = myMagicBoolean;
	}
}

As you can see every class field has the JournalArticleField annotation. There are three different attributes for that annotation:

• title: the field annotated with this will contain the title.
• name: the field annotated with this will be associated with the structure field with the given name value;
• base: the field annotated with this will be associated with the base nested structure field. This has sense only in a nested objects/structures.

Now simply use it:

long id = 20121l;
JournalArticle journalArticle = JournalArticleLocalServiceUtil.getArticle(id);
Foo foo = new Foo();
foo.fromJournalArticle(journalArticle);

You could also get the Journal Article content only for a specific Locale:

long id = 20121l;
JournalArticle journalArticle = JournalArticleLocalServiceUtil.getArticle(id);
Locale locale = new Locale("ca");
Foo foo = new Foo();
foo.fromJournalArticle(journalArticle, locale);

List Example

This library supports lists. Let's see an example:

XML structure:

<?xml version="1.0"?>

<root available-locales="en_US,ca_ES" default-locale="en_US">
	<dynamic-element name="text" type="text" index-type="keyword" index="0">
		<dynamic-content language-id="en_US"><![CDATA[English]]></dynamic-content>
		<dynamic-content language-id="ca_ES"><![CDATA[Catalan]]></dynamic-content>
	</dynamic-element>
	<dynamic-element name="text" type="text" index-type="keyword" index="1">
		<dynamic-content language-id="en_US"><![CDATA[Second text]]></dynamic-content>
		<dynamic-content language-id="ca_ES"><![CDATA[null]]></dynamic-content>
	</dynamic-element>
	<dynamic-element name="text" type="text" index-type="keyword" index="2">
		<dynamic-content language-id="en_US"><![CDATA[Third text]]></dynamic-content>
		<dynamic-content language-id="ca_ES"><![CDATA[null]]></dynamic-content>
	</dynamic-element>
</root>

Java Object:

public class Bar extends ConvertibleJournalArticle {

	@JournalArticleField(title = true)
	private String title;

	@JournalArticleField(name = "text")
	private List<String> text;
	
	
	public String getTitle() {
		return title;
	}

	public void setTitle(String title) {
		this.title = title;
	}

	public String getText() {
		return text;
	}

	public void setText(String text) {
		this.text = text;
	}
}

Use it:

long id = 20121l;
JournalArticle journalArticle = JournalArticleLocalServiceUtil.getArticle(id);
Bar bar = new Bar();
bar.fromJournalArticle(journalArticle);
List<String> text = bar.getText(); //This will contain a List with values of "English", "Second text" and "Third text"

Nested Example

This library supports nested structures. Let's see an example:

XML structure:

<?xml version="1.0"?>

<root available-locales="en_US,ca_ES" default-locale="en_US">
	<dynamic-element name="nested" type="document_library" index-type="keyword" index="0">
		<dynamic-element name="nestedBoolean" index="0" type="boolean" index-type="keyword">
			<dynamic-content language-id="en_US"><![CDATA[true]]></dynamic-content>
		</dynamic-element>
		<dynamic-element name="nestedText" index="0" type="text" index-type="keyword">
			<dynamic-content language-id="en_US"><![CDATA[Nested Text :)]]></dynamic-content>
		</dynamic-element>
		<dynamic-content language-id="en_US"><![CDATA[/documents/20281/0/welcome_community/d83a745d-8624-44c0-baad-3c7d05e3b2dc?t=1439123090000]]></dynamic-content>
	</dynamic-element>
</root>

Java Objects:

public class NestedFoo extends ConvertibleJournalArticle {

	@JournalArticleField(name = "nested")
	private NestedBar nestedBar;

	public NestedBar getNestedBar() {
		return nestedBar;
	}

	public void setNestedBar(NestedBar nestedBar) {
		this.nestedBar = nestedBar;
	}
	
	@Override
	public String toString() {
		return "nestedBar: " + nestedBar;
	}

}

public class NestedBar extends ConvertibleJournalArticle {

	@JournalArticleField(name = "nestedBoolean")
	private Boolean myBoolean;

	@JournalArticleField(name = "nestedText")
	private String myText;

	@JournalArticleField(base = true)
	private String documentsAndMedia;

	public Boolean getMyBoolean() {
		return myBoolean;
	}

	public void setMyBoolean(Boolean myBoolean) {
		this.myBoolean = myBoolean;
	}

	public String getMyText() {
		return myText;
	}

	public void setMyText(String myText) {
		this.myText = myText;
	}

	public String getDocumentsAndMedia() {
		return documentsAndMedia;
	}

	public void setDocumentsAndMedia(String documentsAndMedia) {
		this.documentsAndMedia = documentsAndMedia;
	}
	
	@Override
	public String toString() {
		return "[myBoolean = " + myBoolean + ", myText = " + myText + ", documentsAndMedia = " + documentsAndMedia + "]";
	}
}

Use them:

long id = 20121l;
JournalArticle journalArticle = JournalArticleLocalServiceUtil.getArticle(id);
NestedFoo nestedFoo = new NestedFoo();
nestedFoo.fromJournalArticle(journalArticle);
NestedBar nestedBar = nestedFoo.getNestedBar();
System.out.println(nestedBar); //[myBoolean = true, myText = Nested Text :), documentsAndMedia = /documents/20281/0/welcome_community/d83a745d-8624-44c0-baad-3c7d05e3b2dc?t=1439123090000]

Issues

If you find problems, please open an issue here.