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  /*
   * Copyright 2010-2015 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.machinelearning.model.transform;
 
 import static com.amazonaws.util.StringUtils.UTF8;
 import static com.amazonaws.util.StringUtils.COMMA_SEPARATOR;
 import java.io.Writer;
 import java.util.Map;
 import java.util.List;
 
Create Data Source From Redshift Request Marshaller
 
 
     public Request<CreateDataSourceFromRedshiftRequestmarshall(CreateDataSourceFromRedshiftRequest createDataSourceFromRedshiftRequest) {
         if (createDataSourceFromRedshiftRequest == null) {
             throw new AmazonClientException("Invalid argument passed to marshall(...)");
         }
 
         Request<CreateDataSourceFromRedshiftRequestrequest = new DefaultRequest<CreateDataSourceFromRedshiftRequest>(createDataSourceFromRedshiftRequest"AmazonMachineLearning");
         String target = "AmazonML_20141212.CreateDataSourceFromRedshift";
         request.addHeader("X-Amz-Target"target);
 
         request.setHttpMethod(.);
         request.setResourcePath("");
         
         try {
           StringWriter stringWriter = new StringWriter();
           JSONWriter jsonWriter = new JSONWriter(stringWriter);
 
           jsonWriter.object();
           
             if (createDataSourceFromRedshiftRequest.getDataSourceId() != null) {
                 jsonWriter.key("DataSourceId").value(createDataSourceFromRedshiftRequest.getDataSourceId());
             }
             if (createDataSourceFromRedshiftRequest.getDataSourceName() != null) {
                 jsonWriter.key("DataSourceName").value(createDataSourceFromRedshiftRequest.getDataSourceName());
             }
             RedshiftDataSpec dataSpec = createDataSourceFromRedshiftRequest.getDataSpec();
             if (dataSpec != null) {
 
                 jsonWriter.key("DataSpec");
                 jsonWriter.object();
 
                 RedshiftDatabase databaseInformation = dataSpec.getDatabaseInformation();
                 if (databaseInformation != null) {
 
                     jsonWriter.key("DatabaseInformation");
                     jsonWriter.object();
 
                     if (databaseInformation.getDatabaseName() != null) {
                         jsonWriter.key("DatabaseName").value(databaseInformation.getDatabaseName());
                     }
                     if (databaseInformation.getClusterIdentifier() != null) {
                         jsonWriter.key("ClusterIdentifier").value(databaseInformation.getClusterIdentifier());
                     }
                     jsonWriter.endObject();
                 }
                 if (dataSpec.getSelectSqlQuery() != null) {
                     jsonWriter.key("SelectSqlQuery").value(dataSpec.getSelectSqlQuery());
                 }
                 RedshiftDatabaseCredentials databaseCredentials = dataSpec.getDatabaseCredentials();
                 if (databaseCredentials != null) {
 
                     jsonWriter.key("DatabaseCredentials");
                     jsonWriter.object();
 
                     if (databaseCredentials.getUsername() != null) {
                        jsonWriter.key("Username").value(databaseCredentials.getUsername());
                    }
                    if (databaseCredentials.getPassword() != null) {
                        jsonWriter.key("Password").value(databaseCredentials.getPassword());
                    }
                    jsonWriter.endObject();
                }
                if (dataSpec.getS3StagingLocation() != null) {
                    jsonWriter.key("S3StagingLocation").value(dataSpec.getS3StagingLocation());
                }
                if (dataSpec.getDataRearrangement() != null) {
                    jsonWriter.key("DataRearrangement").value(dataSpec.getDataRearrangement());
                }
                if (dataSpec.getDataSchema() != null) {
                    jsonWriter.key("DataSchema").value(dataSpec.getDataSchema());
                }
                if (dataSpec.getDataSchemaUri() != null) {
                    jsonWriter.key("DataSchemaUri").value(dataSpec.getDataSchemaUri());
                }
                jsonWriter.endObject();
            }
            if (createDataSourceFromRedshiftRequest.getRoleARN() != null) {
                jsonWriter.key("RoleARN").value(createDataSourceFromRedshiftRequest.getRoleARN());
            }
            if (createDataSourceFromRedshiftRequest.isComputeStatistics() != null) {
                jsonWriter.key("ComputeStatistics").value(createDataSourceFromRedshiftRequest.isComputeStatistics());
            }
          jsonWriter.endObject();
          String snippet = stringWriter.toString();
          byte[] content = snippet.getBytes();
          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;
    }
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