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The AWS Java SDK for Elastic Load Balancing module holds the client classes that are used for communicating with Elastic Load Balancing Service (API Version 2015-12-01)

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/*
 * Copyright 2011-2016 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.elasticloadbalancingv2.model.transform;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import com.amazonaws.AmazonClientException;
import com.amazonaws.Request;
import com.amazonaws.DefaultRequest;
import com.amazonaws.http.HttpMethodName;
import com.amazonaws.services.elasticloadbalancingv2.model.*;
import com.amazonaws.transform.Marshaller;
import com.amazonaws.util.StringUtils;
import com.amazonaws.util.IdempotentUtils;

/**
 * ModifyTargetGroupAttributesRequest Marshaller
 */

public class ModifyTargetGroupAttributesRequestMarshaller
        implements
        Marshaller, ModifyTargetGroupAttributesRequest> {

    public Request marshall(
            ModifyTargetGroupAttributesRequest modifyTargetGroupAttributesRequest) {

        if (modifyTargetGroupAttributesRequest == null) {
            throw new AmazonClientException(
                    "Invalid argument passed to marshall(...)");
        }

        Request request = new DefaultRequest(
                modifyTargetGroupAttributesRequest,
                "AmazonElasticLoadBalancing");
        request.addParameter("Action", "ModifyTargetGroupAttributes");
        request.addParameter("Version", "2015-12-01");
        request.setHttpMethod(HttpMethodName.POST);

        if (modifyTargetGroupAttributesRequest.getTargetGroupArn() != null) {
            request.addParameter("TargetGroupArn", StringUtils
                    .fromString(modifyTargetGroupAttributesRequest
                            .getTargetGroupArn()));
        }

        java.util.List attributesList = modifyTargetGroupAttributesRequest
                .getAttributes();

        if (attributesList != null) {
            if (attributesList.isEmpty()) {
                request.addParameter("Attributes", "");
            } else {
                int attributesListIndex = 1;

                for (TargetGroupAttribute attributesListValue : attributesList) {

                    if (attributesListValue.getKey() != null) {
                        request.addParameter("Attributes.member."
                                + attributesListIndex + ".Key", StringUtils
                                .fromString(attributesListValue.getKey()));
                    }

                    if (attributesListValue.getValue() != null) {
                        request.addParameter("Attributes.member."
                                + attributesListIndex + ".Value", StringUtils
                                .fromString(attributesListValue.getValue()));
                    }
                    attributesListIndex++;
                }
            }
        }

        return request;
    }

}