Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright 2012-2013 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.
 */

import java.net.URI;

public class Main {
    public static String parseRegionName(URI endpoint) {
        String host = endpoint.getHost();

        // If we don't recognize the domain, just return the default
        if (!host.endsWith(".amazonaws.com"))
            return "us-east-1";

        String serviceAndRegion = host.substring(0, host.indexOf(".amazonaws.com"));

        // S3 is different from other services, which supports virtual host and
        // use '-' as separator, the host may look like
        // 'bucketName.s3-us-west-2.amazonaws.com'
        if (serviceAndRegion.contains("s3-")) {
            return serviceAndRegion.substring(serviceAndRegion.lastIndexOf("s3-") + 3);
        }

        char separator = '.';

        if (serviceAndRegion.indexOf(separator) == -1)
            return "us-east-1";

        String region = serviceAndRegion.substring(serviceAndRegion.indexOf(separator) + 1);
        if ("us-gov".equals(region)) {
            return "us-gov-west-1";
        }

        return region;
    }
}