1 files changed, 56 insertions, 0 deletions
diff --git a/plugins/org.eclipse.emf.compare.logical/src/org/eclipse/emf/compare/logical/common/EMFResourceUtil.java b/plugins/org.eclipse.emf.compare.logical/src/org/eclipse/emf/compare/logical/common/EMFResourceUtil.java
new file mode 100644
index 000000000..cf760be71
--- /dev/null
+++ b/plugins/org.eclipse.emf.compare.logical/src/org/eclipse/emf/compare/logical/common/EMFResourceUtil.java
@@ -0,0 +1,56 @@
+/*******************************************************************************
+ * Copyright (c) 2011 Obeo.
+ * 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:
+ *     Obeo - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.emf.compare.logical.common;
+
+import java.io.IOException;
+
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.emf.common.util.URI;
+import org.eclipse.emf.compare.util.ModelUtils;
+import org.eclipse.emf.ecore.resource.Resource;
+import org.eclipse.emf.ecore.resource.ResourceSet;
+
+/**
+ * This will provide utility methods for going back and forth from {@link Resource}s to {@link IResource}s.
+ * 
+ * @author <a href="mailto:laurent.goubet@obeo.fr">laurent Goubet</a>
+ */
+public final class EMFResourceUtil {
+	/** Utility classes don't need to (and shouldn't) be instantiated. */
+	private EMFResourceUtil() {
+		// Hides default constructor
+	}
+
+	/**
+	 * Returns the EMF {@link Resource} saved within the given {@link IFile}.
+	 * 
+	 * @param file
+	 *            The file from which to load an EMF {@link Resource}.
+	 * @param resourceSet
+	 *            The resource set in which to load the model.
+	 * @return The EMF {@link Resource} saved within the given {@link IFile}.
+	 */
+	public static final Resource getResource(IFile file, ResourceSet resourceSet) {
+		for (Resource resource : resourceSet.getResources()) {
+			if (resource.getURI().toString().equals(file.getFullPath().toString())) {
+				return resource;
+			}
+		}
+		try {
+			return ModelUtils.load(URI.createPlatformResourceURI(file.getFullPath().toString(), true),
+					resourceSet).eResource();
+		} catch (IOException e) {
+			// FIXME handle this gracefully
+			throw new RuntimeException(e);
+		}
+	}
+}