1 files changed, 49 insertions, 0 deletions
diff --git a/org.eclipse.gemini.web.tomcat/src/main/java/org/eclipse/gemini/web/tomcat/internal/ChainingJarScanner.java b/org.eclipse.gemini.web.tomcat/src/main/java/org/eclipse/gemini/web/tomcat/internal/ChainingJarScanner.java
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index 0000000..a7a6316
--- /dev/null
+++ b/org.eclipse.gemini.web.tomcat/src/main/java/org/eclipse/gemini/web/tomcat/internal/ChainingJarScanner.java
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+/*******************************************************************************
+ * Copyright (c) 2009, 2010 VMware Inc.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Apache License v2.0 which accompanies this distribution. 
+ * The Eclipse Public License is available at
+ *   http://www.eclipse.org/legal/epl-v10.html
+ * and the Apache License v2.0 is available at 
+ *   http://www.opensource.org/licenses/apache2.0.php.
+ * You may elect to redistribute this code under either of these licenses.  
+ *
+ * Contributors:
+ *   VMware Inc. - initial contribution
+ *******************************************************************************/
+
+package org.eclipse.gemini.web.tomcat.internal;
+
+import java.util.Set;
+
+import javax.servlet.ServletContext;
+
+import org.apache.tomcat.JarScanner;
+import org.apache.tomcat.JarScannerCallback;
+
+/**
+ * A <code>JarScanner</code> implementation that delegates to a chain of <code>JarScanner</code>s.
+ * <p />
+ * 
+ * <strong>Concurrent Semantics</strong><br />
+ * 
+ * Thread-safe.
+ * 
+ */
+final class ChainingJarScanner implements JarScanner {
+    
+    private final JarScanner[] jarScanners;
+    
+    public ChainingJarScanner(JarScanner... jarScanners) {
+        this.jarScanners = jarScanners;
+    }
+
+    public void scan(ServletContext context, ClassLoader classloader, JarScannerCallback callback, Set<String> jarsToSkip) {
+        for (JarScanner jarScanner : jarScanners) {
+            jarScanner.scan(context, classloader, callback, jarsToSkip);
+        }
+    }
+
+}