com.amazonaws.services.s3.internal.S3ExecutionContext Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of aws-java-sdk-s3 Show documentation

The AWS Java SDK for Amazon S3 module holds the client classes that are used for communicating with Amazon Simple Storage Service

There is a newer version: 1.12.778

Show newest version

/*
 * Copyright 2014-2014 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.services.s3.internal;

import java.net.URI;
import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.amazonaws.AmazonWebServiceClient;
import com.amazonaws.auth.RegionAwareSigner;
import com.amazonaws.auth.Signer;
import com.amazonaws.handlers.RequestHandler2;
import com.amazonaws.http.ExecutionContext;
import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.services.s3.AmazonS3URI;

public class S3ExecutionContext extends ExecutionContext {

    private static final Log log = LogFactory.getLog(AmazonS3Client.class);

    private Signer signer;

    public S3ExecutionContext(List requestHandler2s,
            boolean isMetricEnabled, AmazonWebServiceClient awsClient) {
        super(requestHandler2s, isMetricEnabled, awsClient);
    }

    @Override
    public void setSigner(Signer signer) {
        this.signer = signer;
    }

    @Override
    public Signer getSignerByURI(URI uri) {
        // Don't modify the signer region, if the client is configured with region override
        AmazonWebServiceClient awsClient = getAwsClient();
        if (awsClient != null &&
            awsClient.getSignerRegionOverride() != null) {
            return signer;
        }

        // Otherwise, re-adjust the signer region in order to
        // account for endpoint change after a 307 redirect
        try {
            if (signer instanceof RegionAwareSigner) {
                ((RegionAwareSigner) signer).setRegionName(
                        new AmazonS3URI(uri).getRegion());
            }
        } catch (RuntimeException e) {
            log.warn("Failed to parse the endpoint " + uri +
                    ", and skip re-signing the signer region", e);
        }

        return signer;
    }
}