common/aws/src/main/java/org/jclouds/aws/config/FormSigningRestClientModule.java

/**
 * Licensed to jclouds, Inc. (jclouds) under one or more
 * contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  jclouds 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.aws.config;

import java.util.Date;
import java.util.Map;

import javax.inject.Named;
import javax.inject.Singleton;

import org.jclouds.Constants;
import org.jclouds.aws.filters.FormSigner;
import org.jclouds.date.DateService;
import org.jclouds.date.TimeStamp;
import org.jclouds.rest.ConfiguresRestClient;
import org.jclouds.rest.RequestSigner;

import com.google.common.reflect.TypeToken;
import com.google.inject.Provides;

/**
 * 
 * @author Adrian Cole
 */
@ConfiguresRestClient
public abstract class FormSigningRestClientModule<S, A> extends AWSRestClientModule<S, A> {

   protected FormSigningRestClientModule(Map<Class<?>, Class<?>> delegates) {
      super(delegates);
   }

   protected FormSigningRestClientModule() {
   }

   protected FormSigningRestClientModule(TypeToken<S> syncClientType, TypeToken<A> asyncClientType) {
      super(syncClientType, asyncClientType);
   }

   protected FormSigningRestClientModule(TypeToken<S> syncClientType, TypeToken<A> asyncClientType,
            Map<Class<?>, Class<?>> sync2Async) {
      super(syncClientType, asyncClientType, sync2Async);
   }
   
   @Provides
   @TimeStamp
   protected String provideTimeStamp(final DateService dateService,
            @Named(Constants.PROPERTY_SESSION_INTERVAL) final int expiration) {
      return dateService.iso8601DateFormat(new Date(System.currentTimeMillis() + (expiration * 1000)));
   }

   @Provides
   @Singleton
   RequestSigner provideRequestSigner(FormSigner in) {
      return in;
   }

}