com.amazonaws.handlers.RequestHandler2Adaptor Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of aws-java-sdk Show documentation

The Amazon Web Services SDK for Java provides Java APIs for building software on AWS' cost-effective, scalable, and reliable infrastructure products. The AWS Java SDK allows developers to code against APIs for all of Amazon's infrastructure web services (Amazon S3, Amazon EC2, Amazon SQS, Amazon Relational Database Service, Amazon AutoScaling, etc).

The newest version!

/*
 * Copyright 2010-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file 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 com.amazonaws.handlers;

import com.amazonaws.Request;
import com.amazonaws.Response;
import com.amazonaws.util.AWSRequestMetrics;
import com.amazonaws.util.TimingInfo;

/**
 * Internal class used to adapt a request handler that implements the
 * deprecated {@link RequestHandler} interface to the deprecating
 * {@link RequestHandler2} interface.
 */
final class RequestHandler2Adaptor extends RequestHandler2 {
    @SuppressWarnings("deprecation")
    private final RequestHandler old;
    RequestHandler2Adaptor(@SuppressWarnings("deprecation") RequestHandler old) {
        if (old == null)
            throw new IllegalArgumentException();
        this.old = old;
    }
    @SuppressWarnings("deprecation")
    @Override public void beforeRequest(Request request) {
        old.beforeRequest(request);
    }

    @SuppressWarnings("deprecation")
    @Override
    public void afterResponse(Request request, Response response) {
        AWSRequestMetrics awsRequestMetrics = request == null ? null : request
                .getAWSRequestMetrics();
        Object awsResponse = response == null ? null : response
                .getAwsResponse();
        TimingInfo timingInfo = awsRequestMetrics == null ? null
                : awsRequestMetrics.getTimingInfo();
        old.afterResponse(request, awsResponse, timingInfo);
    }

    @SuppressWarnings("deprecation")
    @Override public void afterError(Request request, Response response,
            Exception e) {
        old.afterError(request, e);
    }

    @Override public int hashCode() {
        return old.hashCode();
    }

    @Override public boolean equals(Object o) {
        if (!(o instanceof RequestHandler2Adaptor))
            return false;
        RequestHandler2Adaptor that = (RequestHandler2Adaptor)o;
        return this.old.equals(that.old);
    }
}