1 files changed, 0 insertions, 208 deletions
diff --git a/java/sca/modules/extensibility/src/main/java/org/apache/tuscany/sca/extensibility/ClassLoaderContext.java b/java/sca/modules/extensibility/src/main/java/org/apache/tuscany/sca/extensibility/ClassLoaderContext.java
deleted file mode 100644
index e6ccb22ed5..0000000000
--- a/java/sca/modules/extensibility/src/main/java/org/apache/tuscany/sca/extensibility/ClassLoaderContext.java
+++ /dev/null
@@ -1,208 +0,0 @@
-/*
- * 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.sca.extensibility;
-
-import java.security.PrivilegedAction;
-import java.security.PrivilegedActionException;
-import java.security.PrivilegedExceptionAction;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-
-import org.apache.tuscany.sca.extensibility.impl.ClassLoaderDelegate;
-
-/**
- * A utility that controls context class loaders
- */
-public class ClassLoaderContext {
-    private ClassLoader classLoader;
-
-    /**
-     * Create a context with the parent classloader and a list of service types that can be discovered
-     * by the {@link ServiceDiscovery}
-     * @param parent
-     * @param discovery
-     * @param serviceTypes
-     */
-    public ClassLoaderContext(ClassLoader parent, ServiceDiscovery discovery, Class<?>... serviceTypes) {
-        this(parent, getClassLoaders(discovery, serviceTypes));
-    }
-
-    private ClassLoaderContext(ClassLoader parent, List<ClassLoader> delegates) {
-        List<ClassLoader> loaders = new ArrayList<ClassLoader>(delegates);
-        loaders.remove(parent);
-        if (delegates.isEmpty()) {
-            classLoader = parent;
-        } else {
-            classLoader = new ClassLoaderDelegate(parent, loaders);
-        }
-    }
-
-    /**
-     * Create a context that is visible to the parent classloader as well as the list of classloaders
-     * @param parent
-     * @param delegates
-     */
-    public ClassLoaderContext(ClassLoader parent, ClassLoader... delegates) {
-        this(parent, Arrays.asList(delegates));
-    }
-
-    /**
-     * Create a context with the parent classloader and a list of service types that can be discovered
-     * by the {@link ServiceDiscovery}
-     * @param parent
-     * @param discovery
-     * @param serviceTypes
-     */
-    public ClassLoaderContext(ClassLoader parent, ServiceDiscovery discovery, String... serviceTypes) {
-        this(parent, getClassLoaders(discovery, serviceTypes));
-    }
-
-    public <T> T doPrivileged(PrivilegedAction<T> action) {
-        ClassLoader tccl = Thread.currentThread().getContextClassLoader();
-        if (tccl != classLoader) {
-            Thread.currentThread().setContextClassLoader(classLoader);
-        }
-        try {
-            return action.run();
-        } finally {
-            if (tccl != classLoader) {
-                Thread.currentThread().setContextClassLoader(tccl);
-            }
-        }
-    }
-
-    public <T> T doPrivileged(PrivilegedExceptionAction<T> action) throws PrivilegedActionException {
-        ClassLoader tccl = Thread.currentThread().getContextClassLoader();
-        if (tccl != classLoader) {
-            Thread.currentThread().setContextClassLoader(classLoader);
-        }
-        try {
-            return action.run();
-        } catch (Exception e) {
-            throw new PrivilegedActionException(e);
-        } finally {
-            if (tccl != classLoader) {
-                Thread.currentThread().setContextClassLoader(tccl);
-            }
-        }
-    }
-
-    /**
-     * Set the thread context classloader (TCCL) to a classloader that delegates to a collection
-     * of classloaders 
-     * @param parent The parent classloader
-     * @param delegates A list of classloaders to try
-     * @return The existing TCCL 
-     */
-    public static ClassLoader setContextClassLoader(ClassLoader parent, ClassLoader... delegates) {
-        ClassLoaderContext context = new ClassLoaderContext(parent, delegates);
-        return context.setContextClassLoader();
-    }
-
-    /**
-     * Set the context classloader so that it can access the list of service providers
-     * @param parent The parent classloader
-     * @param serviceNames A list of service provider names
-     * @return The old TCCL if a new one is set, otherwise null
-     */
-    public static ClassLoader setContextClassLoader(ClassLoader parent, ServiceDiscovery discovery, String... serviceNames) {
-        ClassLoaderContext context = new ClassLoaderContext(parent, discovery, serviceNames);
-        return context.setContextClassLoader();
-    }
-
-    /**
-     * Set the context classloader so that it can access the list of service providers
-     * @param parent The parent classloader
-     * @param serviceNames A list of service provider names
-     * @return The old TCCL if a new one is set, otherwise null
-     */
-    public static ClassLoader setContextClassLoader(ClassLoader parent, ServiceDiscovery discovery, Class<?>... serviceTypes) {
-        ClassLoaderContext context = new ClassLoaderContext(parent, discovery, serviceTypes);
-        return context.setContextClassLoader();
-    }
-
-    public ClassLoader setContextClassLoader() {
-        ClassLoader tccl = Thread.currentThread().getContextClassLoader();
-        if (tccl != classLoader) {
-            Thread.currentThread().setContextClassLoader(classLoader);
-            return tccl;
-        } else {
-            return null;
-        }
-    }
-
-    private static ClassLoader getClassLoader(ServiceDiscovery discovery, String serviceProvider) {
-        try {
-            ServiceDeclaration sd = discovery.getServiceDeclaration(serviceProvider);
-            if (sd != null) {
-                return sd.loadClass().getClassLoader();
-            }
-        } catch (Exception e) {
-            // Ignore
-        }
-        return null;
-    }
-
-    private static List<ClassLoader> getClassLoaders(ServiceDiscovery discovery, String... serviceNames) {
-        List<ClassLoader> loaders = new ArrayList<ClassLoader>();
-        for (String sp : serviceNames) {
-            ClassLoader loader = getClassLoader(discovery, sp);
-            if (loader != null) {
-                if (!loaders.contains(loader)) {
-                    loaders.add(loader);
-                }
-            }
-        }
-        ClassLoader tccl = discovery.getContextClassLoader();
-        if (!loaders.contains(tccl)) {
-            loaders.add(tccl);
-        }
-        return loaders;
-    }
-
-    private static ClassLoader getClassLoader(ServiceDiscovery discovery, Class<?> serviceType) {
-        try {
-            ServiceDeclaration sd = discovery.getServiceDeclaration(serviceType);
-            if (sd != null) {
-                return sd.loadClass().getClassLoader();
-            }
-        } catch (Exception e) {
-            // Ignore
-        }
-        return null;
-    }
-
-    private static List<ClassLoader> getClassLoaders(ServiceDiscovery discovery, Class<?>... serviceTypes) {
-        List<ClassLoader> loaders = new ArrayList<ClassLoader>();
-        for (Class<?> serviceType : serviceTypes) {
-            ClassLoader classLoader = getClassLoader(discovery, serviceType);
-            if (classLoader != null && loaders.contains(classLoader)) {
-                loaders.add(classLoader);
-            }
-        }
-        ClassLoader tccl = discovery.getContextClassLoader();
-        if (!loaders.contains(tccl)) {
-            loaders.add(tccl);
-        }
-        return loaders;
-    }
-
-}