com.amazonaws.services.datapipeline.model.transform.PollForTaskRequestMarshaller Maven / Gradle / Ivy

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/*
 * 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.services.datapipeline.model.transform;

import static com.amazonaws.util.StringUtils.UTF8;
import static com.amazonaws.util.StringUtils.COMMA_SEPARATOR;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.OutputStreamWriter;
import java.io.StringWriter;
import java.io.Writer;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.List;
import java.util.regex.Pattern;

import com.amazonaws.AmazonClientException;
import com.amazonaws.Request;
import com.amazonaws.DefaultRequest;
import com.amazonaws.http.HttpMethodName;
import com.amazonaws.services.datapipeline.model.*;
import com.amazonaws.transform.Marshaller;
import com.amazonaws.util.BinaryUtils;
import com.amazonaws.util.StringUtils;
import com.amazonaws.util.StringInputStream;
import com.amazonaws.util.json.*;

/**
 * Poll For Task Request Marshaller
 */
public class PollForTaskRequestMarshaller implements Marshaller, PollForTaskRequest> {

    public Request marshall(PollForTaskRequest pollForTaskRequest) {
        if (pollForTaskRequest == null) {
            throw new AmazonClientException("Invalid argument passed to marshall(...)");
        }

        Request request = new DefaultRequest(pollForTaskRequest, "DataPipeline");
        String target = "DataPipeline.PollForTask";
        request.addHeader("X-Amz-Target", target);

        request.setHttpMethod(HttpMethodName.POST);
        request.setResourcePath("");
        
        try {
          StringWriter stringWriter = new StringWriter();
          JSONWriter jsonWriter = new JSONWriter(stringWriter);

          jsonWriter.object();
          
            if (pollForTaskRequest.getWorkerGroup() != null) {
                jsonWriter.key("workerGroup").value(pollForTaskRequest.getWorkerGroup());
            }
            if (pollForTaskRequest.getHostname() != null) {
                jsonWriter.key("hostname").value(pollForTaskRequest.getHostname());
            }
            InstanceIdentity instanceIdentity = pollForTaskRequest.getInstanceIdentity();
            if (instanceIdentity != null) {

                jsonWriter.key("instanceIdentity");
                jsonWriter.object();

                if (instanceIdentity.getDocument() != null) {
                    jsonWriter.key("document").value(instanceIdentity.getDocument());
                }
                if (instanceIdentity.getSignature() != null) {
                    jsonWriter.key("signature").value(instanceIdentity.getSignature());
                }
                jsonWriter.endObject();
            }

          jsonWriter.endObject();

          String snippet = stringWriter.toString();
          byte[] content = snippet.getBytes(UTF8);
          request.setContent(new StringInputStream(snippet));
          request.addHeader("Content-Length", Integer.toString(content.length));
          request.addHeader("Content-Type", "application/x-amz-json-1.1");
        } catch(Throwable t) {
          throw new AmazonClientException("Unable to marshall request to JSON: " + t.getMessage(), t);
        }

        return request;
    }
}