Bug 525876: [ProjectEditors] Add methods to papyrus projects editors

Change-Id: Ib4182d0c59257b0d2ec452e61baaed927f5413e8
Signed-off-by: Vincent Lorenzo <vincent.lorenzo@cea.fr>

8 files changed, 336 insertions, 21 deletions

diff --git a/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/META-INF/MANIFEST.MF b/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/META-INF/MANIFEST.MF
index 4f5ab1f23bd..65c548e3098 100644
--- a/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/META-INF/MANIFEST.MF
+++ b/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/META-INF/MANIFEST.MF
@@ -1,14 +1,15 @@
 Manifest-Version: 1.0

 Export-Package: org.eclipse.papyrus.eclipse.project.editors.file,

  org.eclipse.papyrus.eclipse.project.editors.interfaces,

- org.eclipse.papyrus.eclipse.project.editors.project

+ org.eclipse.papyrus.eclipse.project.editors.project,

+ org.eclipse.papyrus.eclipse.project.editors.project.filter

 Require-Bundle: org.eclipse.jdt.core;bundle-version="[3.12.0,4.0.0)";visibility:=reexport,

  org.eclipse.papyrus.infra.widgets;bundle-version="[3.0.0,4.0.0)",

  org.eclipse.pde.core;bundle-version="[3.11.0,4.0.0)";visibility:=reexport,

  org.eclipse.pde.ui;bundle-version="[3.9.0,4.0.0)"

 Bundle-Vendor: %providerName

 Bundle-ActivationPolicy: lazy

-Bundle-Version: 2.0.0.qualifier

+Bundle-Version: 2.1.0.qualifier

 Bundle-Localization: plugin

 Bundle-Name: %pluginName

 Bundle-Activator: org.eclipse.papyrus.eclipse.project.editors.Activator

diff --git a/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/pom.xml b/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/pom.xml
index 5e88c787d88..39b9bb277e2 100644
--- a/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/pom.xml
+++ b/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/pom.xml
@@ -8,6 +8,6 @@
 	    <version>0.0.1-SNAPSHOT</version>
 	</parent>
 	<artifactId>org.eclipse.papyrus.eclipse.project.editors</artifactId>
-	<version>2.0.0-SNAPSHOT</version>
+	<version>2.1.0-SNAPSHOT</version>
 	<packaging>eclipse-plugin</packaging>
 </project>
\ No newline at end of file
diff --git a/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/file/ManifestEditor.java b/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/file/ManifestEditor.java
index b191b1da17a..592e56b0be8 100644
--- a/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/file/ManifestEditor.java
+++ b/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/file/ManifestEditor.java
@@ -1,5 +1,5 @@
 /*****************************************************************************
- * Copyright (c) 2011, 2016 CEA LIST, Christian W. Damus, and others.
+ * Copyright (c) 2011, 2016, 2017 CEA LIST, Christian W. Damus, and others.
  *
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
@@ -9,7 +9,7 @@
  * Contributors:
  *  Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
  *  Christian W. Damus - bugs 485220, 489075
- *  
+ *  Vincent Lorenzo (CEA LIST) - bug 525876
  *****************************************************************************/
 package org.eclipse.papyrus.eclipse.project.editors.file;
 
@@ -71,10 +71,12 @@ public class ManifestEditor extends ProjectEditor implements IManifestEditor {
 
 	private static final String BUNDLE_SYMBOLIC_NAME = "Bundle-SymbolicName"; //$NON-NLS-1$
 
-	private static final String IMPORT_PACKAGE = "Import-Package";
+	private static final String IMPORT_PACKAGE = "Import-Package"; //$NON-NLS-1$
 
-	private static final String EXPORT_PACKAGE = "Export-Package";
+	private static final String EXPORT_PACKAGE = "Export-Package"; //$NON-NLS-1$
 
+	private static final String FRAGMENT_HOST = "Fragment-Host"; //$NON-NLS-1$
+	
 	private static final String SINGLETON = "singleton:="; //$NON-NLS-1$
 
 	private static final String VISIBILITY = "visibility"; //$NON-NLS-1$
@@ -187,7 +189,7 @@ public class ManifestEditor extends ProjectEditor implements IManifestEditor {
 	public void setDependenciesVersion(final String dependencyPattern, final String newVersion) {
 		updateDependencies(
 				name -> name.contains(dependencyPattern), // Update dependencies like this
-				Collections.singletonMap("bundle-version", newVersion), // To have this version attribute
+				Collections.singletonMap("bundle-version", newVersion), // To have this version attribute //$NON-NLS-1$
 				null); // And don't change directives such as optionality
 	}
 
@@ -204,7 +206,7 @@ public class ManifestEditor extends ProjectEditor implements IManifestEditor {
 		// 1 - the attribute/directive name
 		// 2 - the equality/assignment operator
 		// 3 - the quotation delimiter, if any
-		Pattern attributeOrDirective = Pattern.compile("([^:]+)(:?=)([\"']?).*\\3");
+		Pattern attributeOrDirective = Pattern.compile("([^:]+)(:?=)([\"']?).*\\3"); //$NON-NLS-1$
 
 		transformHeader(headerName, predicate, (dependency, attrs) -> {
 			StringBuilder result = new StringBuilder();
@@ -968,4 +970,43 @@ public class ManifestEditor extends ProjectEditor implements IManifestEditor {
 			return attributeNames;
 		}
 	}
+	
+	/**
+	 * {@inheritDoc}
+	 * 
+	 * @see org.eclipse.papyrus.eclipse.project.editors.interfaces.IManifestEditor#setFragmentHost(java.lang.String)
+	 */
+	@Override
+	public void setFragmentHost(final String fragmentHost) {
+		setFragmentHost(fragmentHost, null);
+	}
+	
+	/**
+	 * {@inheritDoc}
+	 * 
+	 * @see org.eclipse.papyrus.eclipse.project.editors.interfaces.IManifestEditor#setFragmentHost(java.lang.String, java.lang.String)
+	 */
+	@Override
+	public void setFragmentHost(final String fragmentHost, final String version) {
+		String fragmentHostStringValue = (version == null)
+				? fragmentHost
+				: String.format("%s;version=\"%s\"", fragmentHost, version); //$NON-NLS-1$
+
+		setMainAttribute(FRAGMENT_HOST, fragmentHostStringValue);
+	}
+	
+	/**
+	 * {@inheritDoc}
+	 * 
+	 * @see org.eclipse.papyrus.eclipse.project.editors.interfaces.IManifestEditor#getFragmentHost()
+	 */
+	@Override
+	public String getFragmentHost() {
+		// Without the <String> hint, javac balks but JDT does not
+		return getMainAttribute(FRAGMENT_HOST)
+				.<String> map(name -> {
+					int semiColon = name.indexOf(SEMICOLON);
+					return semiColon >= 0 ? name.substring(0, semiColon) : name;
+				}).orElse(null);
+	}
 }
diff --git a/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/interfaces/IJavaProjectEditor.java b/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/interfaces/IJavaProjectEditor.java
index 73bd98dc743..0c20f070c25 100644
--- a/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/interfaces/IJavaProjectEditor.java
+++ b/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/interfaces/IJavaProjectEditor.java
@@ -1,5 +1,5 @@
 /*****************************************************************************
- * Copyright (c) 2011, 2016 CEA LIST, Christian W. Damus, and others.
+ * Copyright (c) 2011, 2016, 2017 CEA LIST, Christian W. Damus, and others.
  *
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
@@ -9,10 +9,14 @@
  * Contributors:
  *  Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
  *  Christian W. Damus - bug 485220
- *
+ *  Vincent Lorenzo (CEA LIST) - bug 525876
  *****************************************************************************/
 package org.eclipse.papyrus.eclipse.project.editors.interfaces;
 
+import org.eclipse.jdt.core.ICompilationUnit;
+import org.eclipse.jdt.core.IJavaProject;
+import org.eclipse.jdt.core.IPackageFragment;
+
 /**
  *
  * Editor for the java project
@@ -29,6 +33,27 @@ public interface IJavaProjectEditor extends IProjectEditor, IBuildEditor, IClass
 	public static final String JAVA_BUILD_COMMAND = "org.eclipse.jdt.core.javabuilder"; //$NON-NLS-1$
 
 	/**
+	 * The class file extension.
+	 * 
+	 * @since 2.1
+	 */
+	public static final String CLASS_FILE_EXTENSION = ".java"; //$NON-NLS-1$
+
+	/**
+	 * The basic source folder name.
+	 * 
+	 * @since 2.1
+	 */
+	public static final String BASIC_SOURCE_FOLDER_NAME = "src"; //$NON-NLS-1$
+
+	/**
+	 * The basic bin folder name.
+	 * 
+	 * @since 2.1
+	 */
+	public static final String BASIC_BIN_FOLDER_NAME = "bin"; //$NON-NLS-1$
+
+	/**
 	 * Add a new java source folder in the .classpath and in the build.properties
 	 *
 	 * @param path
@@ -36,4 +61,38 @@ public interface IJavaProjectEditor extends IProjectEditor, IBuildEditor, IClass
 	 */
 	public void addJavaSourceFolder(final String path);
 
+	/**
+	 * Add a new package in the java project.
+	 * 
+	 * @param sourceFolderName
+	 *            the name of the source folder where the package will be added
+	 * @param packageName
+	 *            The package name.
+	 * @since 2.1
+	 */
+	public IPackageFragment addPackage(final String sourceFolderName, final String packageName);
+
+	/**
+	 * Add a class in a package.
+	 * 
+	 * @param sourceFolderName
+	 *            the source folder name
+	 * @param packageName
+	 *            The package name.
+	 * @param className
+	 *            The class name.
+	 * @param content
+	 *            The class content.
+	 * @since 2.1
+	 */
+	public ICompilationUnit addClass(final String sourceFolderName, final String packageName, final String className, final String content);
+
+	/**
+	 * Get the current java project.
+	 * 
+	 * @return the current java project.
+	 * @since 2.1
+	 */
+	public IJavaProject getJavaProject();
+
 }
diff --git a/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/interfaces/IManifestEditor.java b/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/interfaces/IManifestEditor.java
index 73e5fef8183..d784d6883df 100644
--- a/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/interfaces/IManifestEditor.java
+++ b/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/interfaces/IManifestEditor.java
@@ -1,5 +1,5 @@
 /*****************************************************************************
- * Copyright (c) 2011, 2016 CEA LIST, Christian W. Damus, and others.
+ * Copyright (c) 2011, 2016, 2017 CEA LIST, Christian W. Damus, and others.
  *
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
@@ -10,7 +10,7 @@
  *  Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
  *  Camille Letavernier (CEA LIST) camille.letavernier@cea.fr
  *  Christian W. Damus - bug 485220
- *
+ *  Vincent Lorenzo (CEA LIST) - bug 525876
  *****************************************************************************/
 package org.eclipse.papyrus.eclipse.project.editors.interfaces;
 
@@ -319,4 +319,33 @@ public interface IManifestEditor extends IProjectEditor, IFileEditor {
 	 */
 	public void removeImportedPackage(String packageName);
 
+	/**
+	 * Set the fragment host of the bundle.
+	 * 
+	 * @param name
+	 *            The fragment host for the bundle
+	 * @since 2.1
+	 */
+	public void setFragmentHost(final String fragmentHost);
+
+	/**
+	 * Set the fragment host of the bundle.
+	 * 
+	 * @param name
+	 *            The fragment host for the bundle
+	 * @param version
+	 *            The fragment version
+	 * @since 2.1
+	 */
+	public void setFragmentHost(final String fragmentHost, final String version);
+
+
+	/**
+	 * Get the fragment host for the bundle.
+	 * 
+	 * @return
+	 * 		The fragment host of the bundle.
+	 * @since 2.1
+	 */
+	public String getFragmentHost();
 }
diff --git a/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/project/JavaProjectEditor.java b/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/project/JavaProjectEditor.java
index f76d2f5213d..81bfa0b14f2 100644
--- a/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/project/JavaProjectEditor.java
+++ b/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/project/JavaProjectEditor.java
@@ -1,5 +1,5 @@
 /*****************************************************************************
- * Copyright (c) 2011, 2016 CEA LIST, Christian W. Damus, and others.
+ * Copyright (c) 2011, 2016, 2017 CEA LIST, Christian W. Damus, and others.
  *
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
@@ -9,16 +9,19 @@
  * Contributors:
  *  Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
  *  Christian W. Damus - bug 485220
- *
+ *  Vincent Lorenzo (CEA LIST) - bug 525876
  *****************************************************************************/
 package org.eclipse.papyrus.eclipse.project.editors.project;
 
 import java.util.Set;
 
+import org.eclipse.core.resources.IFolder;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.NullProgressMonitor;
+import org.eclipse.jdt.core.ICompilationUnit;
 import org.eclipse.jdt.core.IJavaProject;
+import org.eclipse.jdt.core.IPackageFragment;
 import org.eclipse.jdt.core.JavaCore;
 import org.eclipse.jdt.core.JavaModelException;
 import org.eclipse.papyrus.eclipse.project.editors.Activator;
@@ -39,8 +42,6 @@ public class JavaProjectEditor extends ProjectEditor implements IJavaProjectEdit
 	/** the java project */
 	private final IJavaProject javaProject;
 
-
-
 	/**
 	 * Gets the classpath editor.
 	 *
@@ -174,16 +175,71 @@ public class JavaProjectEditor extends ProjectEditor implements IJavaProjectEdit
 		}
 	}
 
+	/**
+	 * {@inheritDoc}
+	 * 
+	 * @see org.eclipse.papyrus.eclipse.project.editors.interfaces.IJavaProjectEditor#addPackage(String, java.lang.String)
+	 */
+	@Override
+	public IPackageFragment addPackage(final String sourceFolderName, final String packageName) {
+		IPackageFragment createdPackage = null;
+		if (exists()) {
+			touch();
+
+			IFolder sourceFolder = null;
+			if (null != sourceFolderName && !sourceFolderName.isEmpty() && this.classpathEditor.isSourceFolderRegistered(sourceFolderName)) {
+				sourceFolder = javaProject.getProject().getFolder(sourceFolderName);
+			} else {
+				final String[] sourceFolders = this.classpathEditor.getSourceFolders();
+				if (sourceFolders.length > 0) {
+					sourceFolder = javaProject.getProject().getFolder(sourceFolders[0]);
+				}
+			}
+			if (null != sourceFolder) {
+				createdPackage = javaProject.getPackageFragmentRoot(sourceFolder).getPackageFragment(packageName);
+				if (null == createdPackage || !createdPackage.exists()) {
+					try {
+						createdPackage = javaProject.getPackageFragmentRoot(sourceFolder).createPackageFragment(packageName, false, null);
+					} catch (final JavaModelException e) {
+						Activator.log.error(e);
+					}
+				}
+			}
+		}
+
+		return createdPackage;
+	}
+
+	/**
+	 * {@inheritDoc}
+	 * 
+	 * @see org.eclipse.papyrus.eclipse.project.editors.interfaces.IJavaProjectEditor#addClass(String, java.lang.String, java.lang.String, java.lang.String)
+	 */
+	@Override
+	public ICompilationUnit addClass(String sourceFolderName, final String packageName, final String className, final String content) {
+		ICompilationUnit createdClass = null;
+		if (exists()) {
+			touch();
+
+			final IPackageFragment packageFragment = addPackage(sourceFolderName, packageName);
+			try {
+				createdClass = packageFragment.createCompilationUnit(className + CLASS_FILE_EXTENSION, content, false, null);
+			} catch (final JavaModelException e) {
+				Activator.log.error(e);
+			}
+		}
+
+		return createdClass;
+	}
+
 	@Override
 	public void registerSourceFolder(final String string) {
 		this.buildEditor.registerSourceFolder(string);
-
 	}
 
 	@Override
 	public void addToBuild(final String path) {
 		this.buildEditor.addToBuild(path);
-
 	}
 
 	@Override
@@ -256,4 +312,14 @@ public class JavaProjectEditor extends ProjectEditor implements IJavaProjectEdit
 	public String[] getBinFolders() {
 		return classpathEditor.getBinFolders();
 	}
+
+	/**
+	 * {@inheritDoc}
+	 * 
+	 * @see org.eclipse.papyrus.eclipse.project.editors.interfaces.IJavaProjectEditor#getJavaProject()
+	 */
+	@Override
+	public IJavaProject getJavaProject() {
+		return javaProject;
+	}
 }
diff --git a/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/project/PluginEditor.java b/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/project/PluginEditor.java
index 143d73c1b65..eb7fe36c93c 100644
--- a/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/project/PluginEditor.java
+++ b/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/project/PluginEditor.java
@@ -1,5 +1,5 @@
 /*****************************************************************************
- * Copyright (c) 2011, 2016 CEA LIST, Christian W. Damus, and others.
+ * Copyright (c) 2011, 2016, 2017 CEA LIST, Christian W. Damus, and others.
  *
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
@@ -9,7 +9,7 @@
  * Contributors:
  *  Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
  *  Christian W. Damus - bug 485220
- *  
+ *  Vincent Lorenzo (CEA LIST) - bug 525876
  *****************************************************************************/
 package org.eclipse.papyrus.eclipse.project.editors.project;
 
@@ -21,6 +21,9 @@ import javax.xml.parsers.ParserConfigurationException;
 
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.runtime.CoreException;
+import org.eclipse.jdt.core.ICompilationUnit;
+import org.eclipse.jdt.core.IJavaProject;
+import org.eclipse.jdt.core.IPackageFragment;
 import org.eclipse.papyrus.eclipse.project.editors.file.ManifestEditor;
 import org.eclipse.papyrus.eclipse.project.editors.interfaces.IJavaProjectEditor;
 import org.eclipse.papyrus.eclipse.project.editors.interfaces.IManifestEditor;
@@ -356,6 +359,27 @@ public class PluginEditor extends PluginProjectEditor implements IPluginEditor {
 	public void addSourceFolderToClasspath(String srcPath, String binPath) {
 		java.addSourceFolderToClasspath(srcPath, binPath);
 	}
+	
+	/**
+	 * {@inheritDoc}
+	 * 
+	 * @see org.eclipse.papyrus.eclipse.project.editors.interfaces.IJavaProjectEditor#addPackage(String, java.lang.String)
+	 */
+	@Override
+	public IPackageFragment addPackage(String sourceFolderName, final String packageName) {
+		return java.addPackage(sourceFolderName, packageName);
+	}
+
+	/**
+	 * {@inheritDoc}
+	 * 
+	 * @see org.eclipse.papyrus.eclipse.project.editors.interfaces.IJavaProjectEditor#addClass(String, java.lang.String, java.lang.String, java.lang.String)
+	 */
+	@Override
+	public ICompilationUnit addClass(String sourceFolderName, final String packageName, final String className, final String classContent) {
+		return java.addClass(sourceFolderName, packageName, className, classContent);
+	}
+	
 
 	@Override
 	public boolean isSourceFolderRegistered(String folderPath) {
@@ -366,4 +390,45 @@ public class PluginEditor extends PluginProjectEditor implements IPluginEditor {
 	public String[] getBinFolders() {
 		return java.getBinFolders();
 	}
+	
+	/**
+	 * {@inheritDoc}
+	 * 
+	 * @see org.eclipse.papyrus.eclipse.project.editors.interfaces.IJavaProjectEditor#getJavaProject()
+	 */
+	@Override
+	public IJavaProject getJavaProject() {
+		return java.getJavaProject();
+	}
+
+	/**
+	 * {@inheritDoc}
+	 * 
+	 * @see org.eclipse.papyrus.eclipse.project.editors.interfaces.IManifestEditor#setFragmentHost(java.lang.String)
+	 */
+	@Override
+	public void setFragmentHost(final String fragmentHost) {
+		manifest.setFragmentHost(fragmentHost);
+	}
+
+	/**
+	 * {@inheritDoc}
+	 * 
+	 * @see org.eclipse.papyrus.eclipse.project.editors.interfaces.IManifestEditor#setFragmentHost(java.lang.String, java.lang.String)
+	 */
+	@Override
+	public void setFragmentHost(final String fragmentHost, final String version) {
+		manifest.setFragmentHost(fragmentHost, version);
+	}
+
+	/**
+	 * {@inheritDoc}
+	 * 
+	 * @see org.eclipse.papyrus.eclipse.project.editors.interfaces.IManifestEditor#getFragmentHost()
+	 */
+	@Override
+	public String getFragmentHost() {
+		return manifest.getFragmentHost();
+	}
+	
 }
diff --git a/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/project/filter/JavaPluginProjectFilter.java b/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/project/filter/JavaPluginProjectFilter.java
new file mode 100755
index 00000000000..cf8f167a369
--- /dev/null
+++ b/plugins/editor/org.eclipse.papyrus.eclipse.project.editors/src/org/eclipse/papyrus/eclipse/project/editors/project/filter/JavaPluginProjectFilter.java
@@ -0,0 +1,54 @@
+/*****************************************************************************
+ * Copyright (c) 2017 CEA LIST and others.
+ * 
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *   Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
+ *   
+ *****************************************************************************/
+
+package org.eclipse.papyrus.eclipse.project.editors.project.filter;
+
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.jface.viewers.Viewer;
+import org.eclipse.jface.viewers.ViewerFilter;
+import org.eclipse.papyrus.eclipse.project.editors.interfaces.IJavaProjectEditor;
+import org.eclipse.papyrus.eclipse.project.editors.interfaces.IPluginProjectEditor;
+
+/**
+ *
+ * Filter used to find java plugin project in the workspace
+ * 
+ * @since 2.1
+ */
+public class JavaPluginProjectFilter extends ViewerFilter {
+
+	/**
+	 *
+	 * @see org.eclipse.jface.viewers.ViewerFilter#select(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
+	 *
+	 * @param viewer
+	 * @param parentElement
+	 * @param element
+	 * @return
+	 */
+	@Override
+	public boolean select(final Viewer viewer, final Object parentElement, final Object element) {
+		if (element instanceof IProject) {
+			final IProject project = ((IProject) element).getProject();
+			if (project.exists() && project.isOpen()) {
+				try {
+					return project.hasNature(IJavaProjectEditor.JAVA_NATURE) && project.hasNature(IPluginProjectEditor.PLUGIN_NATURE);
+				} catch (final CoreException e) {
+					// nothing to do here, we already check if the project exists and is open
+				}
+			}
+		}
+		return false;
+	}
+}
\ No newline at end of file