/*
* 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.jclouds.gae.config;
import static com.google.common.util.concurrent.MoreExecutors.sameThreadExecutor;
import org.jclouds.concurrent.SingleThreaded;
import org.jclouds.concurrent.config.ConfiguresExecutorService;
import org.jclouds.concurrent.config.ExecutorServiceModule;
import org.jclouds.gae.GaeHttpCommandExecutorService;
import org.jclouds.http.HttpCommandExecutorService;
import org.jclouds.http.config.ConfiguresHttpCommandExecutorService;
import org.jclouds.predicates.SocketOpen;
import org.jclouds.predicates.SocketOpenUnsupported;
import com.google.appengine.api.urlfetch.URLFetchService;
import com.google.appengine.api.urlfetch.URLFetchServiceFactory;
import com.google.common.base.Supplier;
import com.google.common.util.concurrent.ListeningExecutorService;
import com.google.inject.AbstractModule;
import com.google.inject.Module;
import com.google.inject.Provides;
import com.google.inject.Scopes;
/**
* Configures {@link GaeHttpCommandExecutorService}.
*
* @author Adrian Cole
*/
@ConfiguresHttpCommandExecutorService
@ConfiguresExecutorService
@SingleThreaded
public class GoogleAppEngineConfigurationModule extends AbstractModule {
private final Module userExecutorModule;
public GoogleAppEngineConfigurationModule() {
this(new ExecutorServiceModule(sameThreadExecutor(), sameThreadExecutor()));
}
/**
* Used when you are creating multiple contexts in the same app.
*
* @param currentRequestExecutorService
* @see CurrentRequestExecutorServiceModule#currentRequestExecutorService
*/
public GoogleAppEngineConfigurationModule(Module userExecutorModule) {
this.userExecutorModule = userExecutorModule;
}
/**
* Used when you are creating multiple contexts in the same app.
*
* @param memoizedCurrentRequestExecutorService
* @see CurrentRequestExecutorServiceModule#memoizedCurrentRequestExecutorService
*/
public GoogleAppEngineConfigurationModule(Supplier<ListeningExecutorService> memoizedCurrentRequestExecutorService) {
this.userExecutorModule = new CurrentRequestExecutorServiceModule(memoizedCurrentRequestExecutorService);
}
@Override
protected void configure() {
install(userExecutorModule);
bind(SocketOpen.class).to(SocketOpenUnsupported.class).in(Scopes.SINGLETON);
bindHttpCommandExecutorService();
}
protected void bindHttpCommandExecutorService() {
bind(HttpCommandExecutorService.class).to(GaeHttpCommandExecutorService.class);
}
@Provides
protected URLFetchService provideURLFetchService() {
return URLFetchServiceFactory.getURLFetchService();
}
}