/*
 * Copyright 2011 the original author or authors.
 *
 * Licensed 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.gradle.api.internal.concurrent;

import org.gradle.internal.Factory;
import org.gradle.internal.service.ServiceRegistry;
import org.gradle.internal.service.UnknownServiceException;

/**
 * by Szczepan Faber, created at: 11/24/11
 */
public class SynchronizedServiceRegistry implements ServiceRegistry {
    private final Synchronizer synchronizer = new Synchronizer();
    private final ServiceRegistry delegate;

    public SynchronizedServiceRegistry(ServiceRegistry delegate) {
        this.delegate = delegate;
    }

    public <T> T get(final Class<T> serviceType) throws UnknownServiceException {
        return synchronizer.synchronize(new Factory<T>() {
            public T create() {
                return delegate.get(serviceType);
            }
        });
    }

    public <T> Factory<T> getFactory(final Class<T> type) throws UnknownServiceException {
        return synchronizer.synchronize(new Factory<Factory<T>>() {
            public Factory<T> create() {
                return delegate.getFactory(type);
            }
        });
    }

    public <T> T newInstance(final Class<T> type) throws UnknownServiceException {
        return synchronizer.synchronize(new Factory<T>() {
            public T create() {
                return delegate.newInstance(type);
            }
        });
    }
}

@@ -1615,32 +1615,59 @@
          return 
+new SynchronizedFactory%3CT%3E(
 delegate.getFact
@@ -1671,24 +1671,25 @@
 actory(type)
+)
 ;%0A          
@@ -1942,32 +1942,32 @@
 ;%0A            %7D%0A
-
         %7D);%0A    
@@ -1967,11 +1967,362 @@
 );%0A    %7D
+%0A%0A    private class SynchronizedFactory%3CT%3E implements Factory%3CT%3E %7B%0A        private final Factory%3CT%3E delegateFactory;%0A%0A        public SynchronizedFactory(Factory%3CT%3E delegateFactory) %7B%0A            this.delegateFactory = delegateFactory;%0A        %7D%0A%0A        public T create() %7B%0A            return synchronizer.synchronize(delegateFactory);%0A        %7D%0A    %7D
 %0A%7D%0A

Make sure factories returned by SynchronizedServiceRegistry are themselves synchronized.