1 files changed, 84 insertions, 0 deletions
diff --git a/winery/org.eclipse.winery.common/src/main/java/org/eclipse/winery/common/RepositoryFileReference.java b/winery/org.eclipse.winery.common/src/main/java/org/eclipse/winery/common/RepositoryFileReference.java
new file mode 100644
index 0000000..68fb22f
--- /dev/null
+++ b/winery/org.eclipse.winery.common/src/main/java/org/eclipse/winery/common/RepositoryFileReference.java
@@ -0,0 +1,84 @@
+/*******************************************************************************
+ * Copyright (c) 2013 University of Stuttgart.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and the Apache License 2.0 which both accompany this distribution,
+ * and are available at http://www.eclipse.org/legal/epl-v10.html
+ * and http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Contributors:
+ *     Oliver Kopp - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.winery.common;
+
+import org.eclipse.winery.common.ids.GenericId;
+
+/**
+ * Holds a reference to a file "object" stored in the repository
+ * 
+ * Directories are NOT supported as we would have to reflect parent
+ * relationships there, too.
+ * 
+ * One has to create TOSCAelementId-objects for directories (e.g., scc-data)
+ */
+public class RepositoryFileReference implements Comparable<RepositoryFileReference> {
+	
+	protected final GenericId parent;
+	protected final String fileName;
+	
+	
+	/**
+	 * @param parent the id of the toscaElement the file is nested in
+	 * @param fileName the file name. <em>Must not</em> contain any illegal
+	 *            characters. java.nio.Path cannot be used as Path is tied to a
+	 *            FileSystem
+	 */
+	public RepositoryFileReference(GenericId parent, String fileName) {
+		if (parent == null) {
+			throw new IllegalArgumentException("Parent must not be null.");
+		}
+		if (fileName == null) {
+			throw new IllegalArgumentException("Filename must not be null.");
+		}
+		this.parent = parent;
+		this.fileName = fileName;
+	}
+	
+	public GenericId getParent() {
+		return this.parent;
+	}
+	
+	public String getFileName() {
+		return this.fileName;
+	}
+	
+	@Override
+	public boolean equals(Object obj) {
+		if (obj instanceof RepositoryFileReference) {
+			RepositoryFileReference otherRef = (RepositoryFileReference) obj;
+			return (otherRef.fileName.equals(this.fileName)) && (otherRef.getParent().equals(this.getParent()));
+		} else {
+			return false;
+		}
+	}
+	
+	@Override
+	public int hashCode() {
+		return this.getParent().hashCode() ^ this.getFileName().hashCode();
+	}
+	
+	@Override
+	public int compareTo(RepositoryFileReference o) {
+		int res;
+		res = this.parent.compareTo(o.parent);
+		if (res == 0) {
+			res = this.fileName.compareTo(o.fileName);
+		}
+		return res;
+	}
+	
+	@Override
+	public String toString() {
+		return this.getParent().toString() + "/" + this.getFileName();
+	}
+}