1 files changed, 87 insertions, 0 deletions
diff --git a/bundles/org.eclipse.osgi/defaultAdaptor/src/org/eclipse/osgi/baseadaptor/bundlefile/BundleFileWrapperChain.java b/bundles/org.eclipse.osgi/defaultAdaptor/src/org/eclipse/osgi/baseadaptor/bundlefile/BundleFileWrapperChain.java
new file mode 100644
index 000000000..29f2fd2dc
--- /dev/null
+++ b/bundles/org.eclipse.osgi/defaultAdaptor/src/org/eclipse/osgi/baseadaptor/bundlefile/BundleFileWrapperChain.java
@@ -0,0 +1,87 @@
+/*******************************************************************************
+ * Copyright (c) 2008 IBM Corporation 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:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+
+package org.eclipse.osgi.baseadaptor.bundlefile;
+
+import org.eclipse.osgi.baseadaptor.hooks.BundleFileWrapperFactoryHook;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.URL;
+import java.util.Enumeration;
+import org.eclipse.osgi.baseadaptor.BaseData;
+
+/**
+ * Used to chain the BundleFile objects returned from {@link BundleFileWrapperFactoryHook}.  
+ * This class is useful for traversing the chain of wrapped bundle files.
+ */
+public class BundleFileWrapperChain extends BundleFile {
+	private final BundleFile wrapped;
+	private final BundleFileWrapperChain next;
+
+	public BundleFileWrapperChain(BundleFile wrapped, BundleFileWrapperChain next) {
+		this.wrapped = wrapped;
+		this.next = next;
+	}
+
+	public void close() throws IOException {
+		wrapped.close();
+	}
+
+	public boolean containsDir(String dir) {
+		return wrapped.containsDir(dir);
+	}
+
+	public BundleEntry getEntry(String path) {
+		return wrapped.getEntry(path);
+	}
+
+	public Enumeration getEntryPaths(String path) {
+		return wrapped.getEntryPaths(path);
+	}
+
+	public File getFile(String path, boolean nativeCode) {
+		return wrapped.getFile(path, nativeCode);
+	}
+
+	public void open() throws IOException {
+		wrapped.open();
+	}
+
+	public File getBaseFile() {
+		return wrapped.getBaseFile();
+	}
+
+	public URL getResourceURL(String path, BaseData hostData, int index) {
+		return wrapped.getResourceURL(path, hostData, index);
+	}
+
+	public String toString() {
+		return wrapped.toString();
+	}
+
+	/**
+	 * The BundleFile that is wrapped
+	 * @return the BunldeFile that is wrapped
+	 */
+	public BundleFile getWrapped() {
+		return wrapped;
+	}
+
+	/**
+	 * The next WrapperBundleFile in the chain.  A <code>null</code> value
+	 * is returned if this is the end of the chain.
+	 * @return the next WrapperBundleFile
+	 */
+	public BundleFileWrapperChain getNext() {
+		return next;
+	}
+}