Bug 413802 – Cannot copy & paste model using Project Explorer

Add copy/paste action for papyrus model in projectExplorer
(Handler/Command don't seem to be able to override paste action)
Change-Id: I5d2f5630d75c65e08fe8fb67cb3e383150591feb
Signed-off-by: Benoit Maggi <benoit.maggi@cea.fr>

6 files changed, 503 insertions, 156 deletions

diff --git a/plugins/infra/emf/org.eclipse.papyrus.infra.emf/src/org/eclipse/papyrus/infra/emf/resource/DependencyManagementHelper.java b/plugins/infra/emf/org.eclipse.papyrus.infra.emf/src/org/eclipse/papyrus/infra/emf/resource/DependencyManagementHelper.java
index e97eb3d2477..65d9a2fe23f 100644
--- a/plugins/infra/emf/org.eclipse.papyrus.infra.emf/src/org/eclipse/papyrus/infra/emf/resource/DependencyManagementHelper.java
+++ b/plugins/infra/emf/org.eclipse.papyrus.infra.emf/src/org/eclipse/papyrus/infra/emf/resource/DependencyManagementHelper.java
@@ -1,6 +1,6 @@
 /*****************************************************************************
  * Copyright (c) 2013 CEA LIST.
- * 
+ *
  * 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
@@ -35,21 +35,21 @@ import org.eclipse.papyrus.infra.emf.utils.EMFHelper;
 
 /**
  * A Helper to edit dependencies (URIs) between EMF Resources
- * 
+ *
  * It replaces all references from a Resource A to a Resource B with references from A to B'
- * 
+ *
  * B and B' must be "equivalent" (e.g. B is a copy of B' with or without modifications).
- * 
+ *
  * @author Camille Letavernier
- * 
+ *
  */
 public class DependencyManagementHelper {
 
 	/**
 	 * Replaces all references (dependencies) in the "fromResources" to the "uriToReplace" URI, with the "targetURI"
-	 * 
+	 *
 	 * Simplified pseudo code algorithm: fromResources.replaceAll(uriToReplace, targetURI)
-	 * 
+	 *
 	 * @param uriToReplace
 	 *        The URI of the resource which initially contains the referenced elements. May or may not exist.
 	 *        Must not be null
@@ -62,7 +62,7 @@ public class DependencyManagementHelper {
 	 *        Must not be empty
 	 * @param editingDomain
 	 *        The editing domain. May be null.
-	 * 
+	 *
 	 * @return
 	 *         The collection of replacements
 	 */
@@ -90,9 +90,9 @@ public class DependencyManagementHelper {
 
 	/**
 	 * Replaces all references (dependencies) in the "fromResources" to the "uriToReplace" URI, with the "targetURI"
-	 * 
+	 *
 	 * Simplified pseudo code algorithm: fromResources.replaceAll(uriToReplace, targetURI)
-	 * 
+	 *
 	 * @param uriToReplace
 	 *        The URI of the resource which initially contains the referenced elements. May or may not exist.
 	 *        Must not be null
@@ -197,7 +197,7 @@ public class DependencyManagementHelper {
 	/**
 	 * Replaces the EObject (Which may be a proxy) by its equivalent in the given Resource's URI.
 	 * Returns null if the "currentValueToReplace" doesn't belong to the resource represented by "uriToReplace".
-	 * 
+	 *
 	 * @param currentValueToReplace
 	 *        The current value, to be replaced. May be a proxy
 	 * @param uriToReplace
@@ -221,7 +221,7 @@ public class DependencyManagementHelper {
 
 	/**
 	 * Replaces the EObject (Which may be a proxy) by its equivalent in the given Resource's URI.
-	 * 
+	 *
 	 * @param currentValueToReplace
 	 *        The current value, to be replaced. May be a proxy
 	 * @param targetURI
@@ -255,9 +255,9 @@ public class DependencyManagementHelper {
 
 	/**
 	 * Replaces all references (dependencies) in the "resourceSet" to the "uriToReplace" URI, with the "targetURI"
-	 * 
+	 *
 	 * Simplified pseudo code algorithm: resourceSet.getResources().replaceAll(uriToReplace, targetURI)
-	 * 
+	 *
 	 * @param uriToReplace
 	 *        The URI of the resource which initially contains the referenced elements. May or may not exist.
 	 *        Must not be null
@@ -283,9 +283,9 @@ public class DependencyManagementHelper {
 
 	/**
 	 * Replaces all references (dependencies) in the "fromResources" to the "uriToReplace" URI, with the "targetURI"
-	 * 
+	 *
 	 * Simplified pseudo code algorithm: fromResources.replaceAll(uriToReplace, targetURI)
-	 * 
+	 *
 	 * @param uriToReplace
 	 *        The URI of the resource which initially contains the referenced elements. May or may not exist.
 	 *        Must not be null
@@ -305,9 +305,9 @@ public class DependencyManagementHelper {
 
 	/**
 	 * Replaces all references (dependencies) in the "fromResource" to the "uriToReplace" URI, with the "targetURI"
-	 * 
+	 *
 	 * Simplified pseudo code algorithm: fromResource.replaceAll(uriToReplace, targetURI)
-	 * 
+	 *
 	 * @param uriToReplace
 	 *        The URI of the resource which initially contains the referenced elements. May or may not exist.
 	 *        Must not be null
@@ -327,9 +327,9 @@ public class DependencyManagementHelper {
 
 	/**
 	 * Replaces all references (dependencies) in the "resourceSet" to the "uriToReplace" URI, with the "targetURI"
-	 * 
+	 *
 	 * Simplified pseudo code algorithm: resourceSet.getResources().replaceAll(uriToReplace, targetURI)
-	 * 
+	 *
 	 * @param uriToReplace
 	 *        The URI of the resource which initially contains the referenced elements. May or may not exist.
 	 *        Must not be null
@@ -347,59 +347,4 @@ public class DependencyManagementHelper {
 		return updateDependencies(uriToReplace, targetURI, resourcesToEdit, null);
 	}
 
-	private static class ReplacementImpl implements Replacement {
-
-		private EObject parent;
-
-		private EStructuralFeature property;
-
-		private EObject oldValue;
-
-		private EObject newValue;
-
-		public ReplacementImpl(EObject parent, EStructuralFeature property, EObject oldValue, EObject newValue) {
-			this.parent = parent;
-			this.property = property;
-			this.oldValue = oldValue;
-			this.newValue = newValue;
-		}
-
-		public EObject getEObject() {
-			return parent;
-		}
-
-		public EStructuralFeature getEStructuralFeature() {
-			return property;
-		}
-
-		public EObject get(boolean resolve) {
-			if(resolve && newValue != null && newValue.eIsProxy()) {
-				newValue = EcoreUtil.resolve(newValue, parent);
-			}
-
-			return newValue;
-		}
-
-		public void set(Object newValue) {
-			throw new UnsupportedOperationException();
-		}
-
-		public boolean isSet() {
-			return newValue != null;
-		}
-
-		public void unset() {
-			throw new UnsupportedOperationException();
-		}
-
-		public EObject getOldValue() {
-			return oldValue;
-		}
-
-		@Override
-		public String toString() {
-			return String.format("%s replaced with %s", EcoreUtil.getURI(oldValue), EcoreUtil.getURI(newValue));
-		}
-	}
-
 }
diff --git a/plugins/infra/emf/org.eclipse.papyrus.infra.emf/src/org/eclipse/papyrus/infra/emf/resource/IURIReplacementStrategy.java b/plugins/infra/emf/org.eclipse.papyrus.infra.emf/src/org/eclipse/papyrus/infra/emf/resource/IURIReplacementStrategy.java
new file mode 100644
index 00000000000..65e3d46d423
--- /dev/null
+++ b/plugins/infra/emf/org.eclipse.papyrus.infra.emf/src/org/eclipse/papyrus/infra/emf/resource/IURIReplacementStrategy.java
@@ -0,0 +1,28 @@
+/*****************************************************************************
+ * Copyright (c) 2014 CEA LIST.
+ *
+ *    
+ * 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:
+ *  Benoit Maggi  benoit.maggi@cea.fr - Initial API and implementation
+ *
+ *****************************************************************************/
+
+package org.eclipse.papyrus.infra.emf.resource;
+
+import org.eclipse.emf.common.util.URI;
+
+
+/**
+ * Interface for different strategies to change URI of a Resource
+ *
+ */
+public interface IURIReplacementStrategy {
+
+	URI getReplacementCandidate(URI resourceURI);
+
+}
diff --git a/plugins/infra/emf/org.eclipse.papyrus.infra.emf/src/org/eclipse/papyrus/infra/emf/resource/MoveFileURIReplacementStrategy.java b/plugins/infra/emf/org.eclipse.papyrus.infra.emf/src/org/eclipse/papyrus/infra/emf/resource/MoveFileURIReplacementStrategy.java
new file mode 100644
index 00000000000..81f59eb4a81
--- /dev/null
+++ b/plugins/infra/emf/org.eclipse.papyrus.infra.emf/src/org/eclipse/papyrus/infra/emf/resource/MoveFileURIReplacementStrategy.java
@@ -0,0 +1,144 @@
+/*****************************************************************************
+ * Copyright (c) 2014 CEA LIST.
+ *
+ *    
+ * 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:
+ *  Benoit Maggi  benoit.maggi@cea.fr - Initial API and implementation
+ *
+ *****************************************************************************/
+
+
+package org.eclipse.papyrus.infra.emf.resource;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IWorkspaceRoot;
+import org.eclipse.core.resources.ResourcesPlugin;
+import org.eclipse.core.runtime.IPath;
+import org.eclipse.core.runtime.Path;
+import org.eclipse.emf.common.util.URI;
+import org.eclipse.emf.ecore.resource.URIConverter;
+import org.eclipse.papyrus.infra.core.resource.ModelSet;
+
+
+/**
+ * The Class MoveFileURIReplacementStrategy.
+ */
+public class MoveFileURIReplacementStrategy implements IURIReplacementStrategy {
+
+
+	/** The replacement uri mapping. */
+	protected Map<URI, URI> replacementURIMapping;
+
+	/** The source path. */
+	protected IPath sourcePath;
+
+	/** The target path. */
+	protected IPath targetPath;
+
+	/**
+	 * Instantiates a new move file uri replacement strategy.
+	 *
+	 * @param replacementURIMapping
+	 *        the replacement uri mapping
+	 * @param sourcePath
+	 *        the source path
+	 * @param targetPath
+	 *        the target path
+	 */
+	public MoveFileURIReplacementStrategy(Map<URI, URI> replacementURIMapping, IPath sourcePath, IPath targetPath) {
+		this.replacementURIMapping = replacementURIMapping;
+		this.sourcePath = sourcePath;
+		this.targetPath = targetPath;
+	}
+
+	/**
+	 * Instantiates a new move file uri replacement strategy.
+	 *
+	 * @param sourcePath
+	 *        the source path
+	 * @param targetPath
+	 *        the target path
+	 */
+	public MoveFileURIReplacementStrategy(IPath sourcePath, IPath targetPath) {
+		this(new HashMap<URI, URI>(), sourcePath, targetPath);
+	}
+
+
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see org.eclipse.papyrus.infra.emf.resource.IURIReplacementStrategy#getReplacementCandidate(org.eclipse.emf.common.util.URI)
+	 */
+	public URI getReplacementCandidate(URI resourceURI) {
+		if(replacementURIMapping.containsKey(resourceURI)) {
+			return replacementURIMapping.get(resourceURI);
+		}
+		URI calculateUri = calculateNewUri(resourceURI);
+		replacementURIMapping.put(resourceURI, calculateUri);
+		return calculateUri;
+	}
+
+
+	/**
+	 * Calculate uri.
+	 *
+	 * @param resourceURI
+	 *        the resource uri
+	 * @return the uri
+	 */
+	protected URI calculateNewUri(URI resourceURI) {
+		ModelSet modelSet = new ModelSet();
+		URIConverter uriConverter = modelSet.getURIConverter();
+		boolean exists = uriConverter.exists(resourceURI, Collections.EMPTY_MAP);
+		if(!exists) {
+			URI choseCorrectPath = trySourcePath(sourcePath, targetPath, resourceURI);
+			if(choseCorrectPath != null) {
+				return choseCorrectPath;
+			}
+		}
+		return resourceURI;
+	}
+
+
+
+
+	/**
+	 * If the resource is not found in the target location then look in the source location
+	 *
+	 * @param sourcePath
+	 *        the source path
+	 * @param targetPath
+	 *        the target path
+	 * @param resourceURI
+	 *        the resource uri
+	 * @return the uri
+	 */
+	protected URI trySourcePath(IPath sourcePath, IPath targetPath, URI resourceURI) {
+		String uriPlatformString = resourceURI.toPlatformString(true);
+		if(uriPlatformString != null) {
+			Path path = new Path(uriPlatformString);
+			IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
+			IFile file = root.getFile(path);
+			if(!file.exists()) {// test file non existence from the target
+				// calculate a new path from source path
+				URI sourceURI = URI.createPlatformResourceURI(sourcePath.toString()+Path.SEPARATOR, true);
+				URI targetURI = URI.createPlatformResourceURI(targetPath.toString()+Path.SEPARATOR, true);
+				URI resourceDeresolved = resourceURI.deresolve(targetURI);	
+				URI resourceResolved = resourceDeresolved.resolve(sourceURI);
+				return resourceResolved;
+			}
+		}
+		return null;
+	}
+	
+}
diff --git a/plugins/infra/emf/org.eclipse.papyrus.infra.emf/src/org/eclipse/papyrus/infra/emf/resource/ReplacementImpl.java b/plugins/infra/emf/org.eclipse.papyrus.infra.emf/src/org/eclipse/papyrus/infra/emf/resource/ReplacementImpl.java
new file mode 100644
index 00000000000..6eafbfba7cc
--- /dev/null
+++ b/plugins/infra/emf/org.eclipse.papyrus.infra.emf/src/org/eclipse/papyrus/infra/emf/resource/ReplacementImpl.java
@@ -0,0 +1,72 @@
+/*****************************************************************************
+ * Copyright (c) 2013 CEA LIST.
+ * 
+ * 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:
+ *  Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
+ *****************************************************************************/
+package org.eclipse.papyrus.infra.emf.resource;
+
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.ecore.EStructuralFeature;
+import org.eclipse.emf.ecore.util.EcoreUtil;
+
+
+public class ReplacementImpl implements Replacement {
+
+	private EObject parent;
+
+	private EStructuralFeature property;
+
+	private EObject oldValue;
+
+	private EObject newValue;
+
+	public ReplacementImpl(EObject parent, EStructuralFeature property, EObject oldValue, EObject newValue) {
+		this.parent = parent;
+		this.property = property;
+		this.oldValue = oldValue;
+		this.newValue = newValue;
+	}
+
+	public EObject getEObject() {
+		return parent;
+	}
+
+	public EStructuralFeature getEStructuralFeature() {
+		return property;
+	}
+
+	public EObject get(boolean resolve) {
+		if(resolve && newValue != null && newValue.eIsProxy()) {
+			newValue = EcoreUtil.resolve(newValue, parent);
+		}
+
+		return newValue;
+	}
+
+	public void set(Object newValue) {
+		throw new UnsupportedOperationException();
+	}
+
+	public boolean isSet() {
+		return newValue != null;
+	}
+
+	public void unset() {
+		throw new UnsupportedOperationException();
+	}
+
+	public EObject getOldValue() {
+		return oldValue;
+	}
+
+	@Override
+	public String toString() {
+		return String.format("%s replaced with %s", EcoreUtil.getURI(oldValue), EcoreUtil.getURI(newValue)); //$NON-NLS-1$
+	}
+}
\ No newline at end of file
diff --git a/plugins/infra/emf/org.eclipse.papyrus.infra.emf/src/org/eclipse/papyrus/infra/emf/resource/RestoreDependencyHelper.java b/plugins/infra/emf/org.eclipse.papyrus.infra.emf/src/org/eclipse/papyrus/infra/emf/resource/RestoreDependencyHelper.java
new file mode 100644
index 00000000000..f018ddb9c5e
--- /dev/null
+++ b/plugins/infra/emf/org.eclipse.papyrus.infra.emf/src/org/eclipse/papyrus/infra/emf/resource/RestoreDependencyHelper.java
@@ -0,0 +1,132 @@
+/*****************************************************************************
+ * Copyright (c) 2014 CEA LIST.
+ *
+ *    
+ * 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:
+ *  Benoit Maggi  benoit.maggi@cea.fr - Initial API and implementation
+ *
+ *****************************************************************************/
+
+package org.eclipse.papyrus.infra.emf.resource;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.Map;
+
+import org.eclipse.emf.common.util.URI;
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.ecore.EReference;
+import org.eclipse.emf.ecore.EStructuralFeature;
+import org.eclipse.emf.ecore.resource.Resource;
+import org.eclipse.emf.ecore.util.EcoreUtil;
+import org.eclipse.papyrus.infra.emf.Activator;
+
+/**
+ * The Class RestoreDependencyHelper is used to restore broken URI according to a replacement Strategy.
+ */
+public class RestoreDependencyHelper {
+
+
+	/** The  uri replacement strategy. */
+	protected IURIReplacementStrategy iURIReplacementStrategy;
+
+	/**
+	 * Instantiates a new restore dependency helper.
+	 *
+	 * @param iURIReplacementStrategy the chosen uriReplacementStrategy
+	 */
+	public RestoreDependencyHelper(IURIReplacementStrategy iURIReplacementStrategy) {
+		this.iURIReplacementStrategy = iURIReplacementStrategy;
+	}
+
+	/**
+	 * Restore dependencies, iterate on all contents to check and replace URIs.
+	 *
+	 * @param resource the resource
+	 * @return the collection
+	 */
+	public Collection<Replacement> restoreDependencies(Resource resource) {
+		Iterator<EObject> allContentsIterator = resource.getAllContents();
+		Collection<Replacement> replacements = new LinkedList<Replacement>();
+		while(allContentsIterator.hasNext()) {
+			EObject eObject = allContentsIterator.next();
+
+			for(EReference reference : eObject.eClass().getEAllReferences()) {
+				if(reference.isContainment()) {
+					continue;
+				}
+
+				if(!reference.isChangeable()) {
+					continue;
+				}
+
+				Object value = eObject.eGet(reference);
+				if(value instanceof EObject) {
+					EObject eObjectToReplace = (EObject)value;
+					EObject newEObject = checkAndReplace(eObjectToReplace);
+					if(newEObject == null) {
+						continue;
+					}
+
+					try {
+						eObject.eSet(reference, newEObject);
+						replacements.add(new ReplacementImpl(eObject, reference, eObjectToReplace, newEObject));
+					} catch (Exception ex) {
+						Activator.log.error(ex);
+					}
+
+				} else if(value instanceof Collection<?>) {
+					Map<EObject, EObject> previousToNewValue = new HashMap<EObject, EObject>();
+					Collection<?> collection = (Collection<?>)value;
+					for(Object collectionElement : (Collection<?>)value) {
+						if(collectionElement instanceof EObject) {
+							EObject eObjectToReplace = (EObject)collectionElement;
+							EObject newEObject = checkAndReplace(eObjectToReplace);
+							if(newEObject == null) {
+								continue;
+							}
+							previousToNewValue.put(eObjectToReplace, newEObject);
+						}
+					}
+					if(previousToNewValue.isEmpty()) {
+						continue;
+					}
+					if(collection instanceof EStructuralFeature.Setting) {
+						EStructuralFeature.Setting setting = (EStructuralFeature.Setting)collection;
+						for(Map.Entry<EObject, EObject> entry : previousToNewValue.entrySet()) {
+							EcoreUtil.replace(setting, entry.getKey(), entry.getValue());
+							replacements.add(new ReplacementImpl(eObject, reference, entry.getKey(), entry.getValue()));
+						}
+					}
+				}
+			}
+		}
+		return replacements;
+	}
+
+	/**
+	 * Check and replace.
+	 *
+	 * @param eObject the e object to replace
+	 * @return the e object
+	 */
+	protected EObject checkAndReplace(EObject eObject) {
+		URI eObjectURIToReplace = EcoreUtil.getURI(eObject);
+		URI resourceURI = eObjectURIToReplace.trimFragment();
+		if(!resourceURI.isEmpty()) {
+			URI targetURI = iURIReplacementStrategy.getReplacementCandidate(resourceURI);
+			if(targetURI != null && !targetURI.equals(resourceURI)) {
+				return DependencyManagementHelper.replace(eObject, targetURI);
+			}
+		}
+		return null;
+	}
+
+}
diff --git a/plugins/infra/emf/org.eclipse.papyrus.infra.emf/src/org/eclipse/papyrus/infra/emf/utils/ResourceUtils.java b/plugins/infra/emf/org.eclipse.papyrus.infra.emf/src/org/eclipse/papyrus/infra/emf/utils/ResourceUtils.java
index 225e5b57eae..26e1818e66b 100644
--- a/plugins/infra/emf/org.eclipse.papyrus.infra.emf/src/org/eclipse/papyrus/infra/emf/utils/ResourceUtils.java
+++ b/plugins/infra/emf/org.eclipse.papyrus.infra.emf/src/org/eclipse/papyrus/infra/emf/utils/ResourceUtils.java
@@ -1,81 +1,107 @@
-/*****************************************************************************

- * Copyright (c) 2012 CEA LIST.

- *

- *    

- * 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.infra.emf.utils;

-

-import java.util.Collection;

-import java.util.HashSet;

-import java.util.Iterator;

-import java.util.Set;

-

-import org.eclipse.core.resources.IFile;

-import org.eclipse.core.resources.ResourcesPlugin;

-import org.eclipse.core.runtime.Assert;

-import org.eclipse.core.runtime.Path;

-import org.eclipse.emf.common.util.URI;

-import org.eclipse.emf.ecore.EObject;

-import org.eclipse.emf.ecore.resource.Resource;

-import org.eclipse.emf.ecore.xmi.XMIResource;

-

-/**

- * 

- * This class provides methods for EMF Resource

- * 

- */

-public class ResourceUtils {

-

-	private ResourceUtils() {

-		//to prevent instanciation

-	}

-

-	/**

-	 * 

-	 * @param resource

-	 *        an EMF resource

-	 * @return

-	 *         the IFile corresponding to this resource, or <code>null</code> if not found

-	 */

-	public static IFile getFile(final Resource resource) {

-		if(resource != null) {

-			URI uri = resource.getURI();

-			uri = resource.getResourceSet().getURIConverter().normalize(uri);

-			if(uri.isPlatformResource()) { 

-				String uriPlatformString = uri.toPlatformString(true) ;

-				return ResourcesPlugin.getWorkspace().getRoot().getFile(new Path(uriPlatformString));

-			}

-		}

-		return null;

-	}

-

-	/**

-	 * 

-	 * 

-	 * @param resource

-	 *        a resource

-	 * @return

-	 *         a collection with all existing id in the resource

-	 * 

-	 */

-	public static Collection<String> getAllResourceIds(final XMIResource resource) {

-		final Set<String> ids = new HashSet<String>();

-		final Iterator<EObject> iterator = resource.getAllContents();

-		while(iterator.hasNext()) {

-			final EObject current = iterator.next();

-			final String id = resource.getID(current);

-			Assert.isNotNull(id);

-			Assert.isTrue(!ids.contains(id));

-			ids.add(id);

-		}

-		return ids;

-	}

-}

+/*****************************************************************************
+ * Copyright (c) 2012 CEA LIST.
+ *
+ *    
+ * 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.infra.emf.utils;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Set;
+
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.ResourcesPlugin;
+import org.eclipse.core.runtime.Assert;
+import org.eclipse.core.runtime.Path;
+import org.eclipse.emf.common.util.URI;
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.ecore.resource.Resource;
+import org.eclipse.emf.ecore.xmi.XMIResource;
+
+/**
+ * 
+ * This class provides methods for EMF Resource
+ * 
+ */
+public class ResourceUtils {
+
+	private ResourceUtils() {
+		//to prevent instanciation
+	}
+
+	/**
+	 * 
+	 * @param resource
+	 *        an EMF resource
+	 * @return
+	 *         the IFile corresponding to this resource, or <code>null</code> if not found
+	 */
+	public static IFile getFile(final Resource resource) {
+		if(resource != null) {
+			URI uri = resource.getURI();
+			uri = resource.getResourceSet().getURIConverter().normalize(uri);
+			if(uri.isPlatformResource()) { 
+				String uriPlatformString = uri.toPlatformString(true) ;
+				return ResourcesPlugin.getWorkspace().getRoot().getFile(new Path(uriPlatformString));
+			}
+		}
+		return null;
+	}
+
+	/**
+	 * 
+	 * 
+	 * @param resource
+	 *        a resource
+	 * @return
+	 *         a collection with all existing id in the resource
+	 * 
+	 */
+	public static Collection<String> getAllResourceIds(final XMIResource resource) {
+		final Set<String> ids = new HashSet<String>();
+		final Iterator<EObject> iterator = resource.getAllContents();
+		while(iterator.hasNext()) {
+			final EObject current = iterator.next();
+			final String id = resource.getID(current);
+			Assert.isNotNull(id);
+			Assert.isTrue(!ids.contains(id));
+			ids.add(id);
+		}
+		return ids;
+	}
+	
+	
+	/**
+	 * Default options to save emf files used in Papyrus
+	 * @return
+	 */
+	public static Map<String, Object> getSaveOptions() {
+		Map<String, Object> saveOptions = new HashMap<String, Object>();
+
+		// default save options.
+		saveOptions.put(XMIResource.OPTION_DECLARE_XML, Boolean.TRUE);
+		saveOptions.put(XMIResource.OPTION_PROCESS_DANGLING_HREF, XMIResource.OPTION_PROCESS_DANGLING_HREF_DISCARD);
+		saveOptions.put(XMIResource.OPTION_SCHEMA_LOCATION, Boolean.TRUE);
+		saveOptions.put(XMIResource.OPTION_USE_XMI_TYPE, Boolean.TRUE);
+		saveOptions.put(XMIResource.OPTION_SAVE_TYPE_INFORMATION, Boolean.TRUE);
+		saveOptions.put(XMIResource.OPTION_SKIP_ESCAPE_URI, Boolean.FALSE);
+		saveOptions.put(XMIResource.OPTION_ENCODING, "UTF-8");
+
+		//see bug 397987: [Core][Save] The referenced plugin models are saved using relative path
+		saveOptions.put(XMIResource.OPTION_URI_HANDLER, new org.eclipse.emf.ecore.xmi.impl.URIHandlerImpl.PlatformSchemeAware());
+
+		return saveOptions;
+	}
+	
+}