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Renders gadgets, provides the gadget metadata service, and serves all javascript required by the OpenSocial specification.

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/*
 * 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.shindig.gadgets.oauth2.handler;

import java.util.List;

import org.apache.shindig.gadgets.oauth2.logger.FilteredLogger;

import com.google.common.collect.ImmutableList;
import com.google.inject.AbstractModule;
import com.google.inject.Provides;
import com.google.inject.Singleton;

/**
 * Injects the default handlers.
 * 
 */
public class OAuth2HandlerModule extends AbstractModule {
  private static final FilteredLogger LOG = FilteredLogger
      .getFilteredLogger(OAuth2HandlerModule.class.getName());

  @Override
  protected void configure() {
    if (OAuth2HandlerModule.LOG.isLoggable()) {
      OAuth2HandlerModule.LOG.entering(OAuth2HandlerModule.class.getName(), "configure");
    }
  }

  @Provides
  @Singleton
  static List provideAuthorizationEndpointResponseHandlers(
      final CodeAuthorizationResponseHandler codeAuthorizationResponseHandler) {
    return ImmutableList
        .of((AuthorizationEndpointResponseHandler) codeAuthorizationResponseHandler);
  }

  @Provides
  @Singleton
  static List provideClientAuthenticationHandlers(
      final BasicAuthenticationHandler basicAuthenticationHandler,
      final StandardAuthenticationHandler standardAuthenticationHandler) {
    return ImmutableList.of(basicAuthenticationHandler, standardAuthenticationHandler);
  }

  @Provides
  @Singleton
  static List provideGrantRequestHandlers(
      final ClientCredentialsGrantTypeHandler clientCredentialsGrantTypeHandler,
      final CodeGrantTypeHandler codeGrantTypeHandler) {
    return ImmutableList.of(clientCredentialsGrantTypeHandler, codeGrantTypeHandler);
  }

  @Provides
  @Singleton
  static List provideTokenEndpointResponseHandlers(
      final TokenAuthorizationResponseHandler tokenAuthorizationResponseHandler) {
    return ImmutableList.of((TokenEndpointResponseHandler) tokenAuthorizationResponseHandler);
  }

  @Provides
  @Singleton
  static List provideTokenHandlers(
      final BearerTokenHandler bearerTokenHandler, final MacTokenHandler macTokenHandler) {
    return ImmutableList.of(bearerTokenHandler, macTokenHandler);
  }
}