1 files changed, 50 insertions, 0 deletions
diff --git a/sandbox/rfeng/minicore/src/main/java/org/apache/tuscany/core/services/classloading/ClassLoaderRegistryImpl.java b/sandbox/rfeng/minicore/src/main/java/org/apache/tuscany/core/services/classloading/ClassLoaderRegistryImpl.java
new file mode 100644
index 0000000000..afa7f64246
--- /dev/null
+++ b/sandbox/rfeng/minicore/src/main/java/org/apache/tuscany/core/services/classloading/ClassLoaderRegistryImpl.java
@@ -0,0 +1,50 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.core.services.classloading;
+
+import java.net.URI;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.Map;
+
+import org.apache.tuscany.spi.services.classloading.ClassLoaderRegistry;
+import org.apache.tuscany.spi.services.classloading.DuplicateClassLoaderException;
+
+/**
+ * Implementation of a registry for classloaders.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class ClassLoaderRegistryImpl implements ClassLoaderRegistry {
+    private final Map<URI, ClassLoader> registry = new ConcurrentHashMap<URI, ClassLoader>();
+
+    public synchronized void register(URI id, ClassLoader classLoader) throws DuplicateClassLoaderException {
+        if (registry.containsKey(id)) {
+            throw new DuplicateClassLoaderException("Duplicate class loader", id.toString());
+        }
+        registry.put(id, classLoader);
+    }
+
+    public ClassLoader getClassLoader(URI id) {
+        return registry.get(id);
+    }
+
+    public ClassLoader unregister(URI id) {
+        return registry.remove(id);
+    }
+}