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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.dynamodbv2.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;
 
Scan Request Marshaller
 
 
     public Request<ScanRequestmarshall(ScanRequest scanRequest) {
         if (scanRequest == null) {
             throw new AmazonClientException("Invalid argument passed to marshall(...)");
         }
 
         Request<ScanRequestrequest = new DefaultRequest<ScanRequest>(scanRequest"AmazonDynamoDBv2");
         String target = "DynamoDB_20120810.Scan";
         request.addHeader("X-Amz-Target"target);
 
         request.setHttpMethod(.);
         request.setResourcePath("");
         
         try {
           StringWriter stringWriter = new StringWriter();
           JSONWriter jsonWriter = new JSONWriter(stringWriter);
 
           jsonWriter.object();
           
             if (scanRequest.getTableName() != null) {
                 jsonWriter.key("TableName").value(scanRequest.getTableName());
             }
             if (scanRequest.getIndexName() != null) {
                 jsonWriter.key("IndexName").value(scanRequest.getIndexName());
             }
 
             if (attributesToGetList != null && !(attributesToGetList.isAutoConstruct() && attributesToGetList.isEmpty())) {
 
                 jsonWriter.key("AttributesToGet");
                 jsonWriter.array();
 
                 for (String attributesToGetListValue : attributesToGetList) {
                     if (attributesToGetListValue != null) {
                         jsonWriter.value(attributesToGetListValue);
                     }
                 }
                 jsonWriter.endArray();
             }
             if (scanRequest.getLimit() != null) {
                 jsonWriter.key("Limit").value(scanRequest.getLimit());
             }
             if (scanRequest.getSelect() != null) {
                 jsonWriter.key("Select").value(scanRequest.getSelect());
             }
             if (scanRequest.getScanFilter() != null) {
                 jsonWriter.key("ScanFilter");
                 jsonWriter.object();
                 for (Map.Entry<StringConditionscanFilterListValue : scanRequest.getScanFilter().entrySet()) {
                     if (scanFilterListValue.getValue() != null) {
                         jsonWriter.key(scanFilterListValue.getKey());
 
                         jsonWriter.object();
 
                         com.amazonaws.internal.ListWithAutoConstructFlag<AttributeValueattributeValueListList = (com.amazonaws.internal.ListWithAutoConstructFlag<AttributeValue>)(scanFilterListValue.getValue().getAttributeValueList());
                        if (attributeValueListList != null && !(attributeValueListList.isAutoConstruct() && attributeValueListList.isEmpty())) {
                            jsonWriter.key("AttributeValueList");
                            jsonWriter.array();
                            for (AttributeValue attributeValueListListValue : attributeValueListList) {
                                if (attributeValueListListValue != null) {
                                    AttributeValueJsonMarshaller.getInstance().marshall(attributeValueListListValuejsonWriter);
                                }
                            }
                            jsonWriter.endArray();
                        }
                        if (scanFilterListValue.getValue().getComparisonOperator() != null) {
                            jsonWriter.key("ComparisonOperator").value(scanFilterListValue.getValue().getComparisonOperator());
                        }
                        jsonWriter.endObject();
                    }
                }
                jsonWriter.endObject();
            }
            if (scanRequest.getConditionalOperator() != null) {
                jsonWriter.key("ConditionalOperator").value(scanRequest.getConditionalOperator());
            }
            if (scanRequest.getExclusiveStartKey() != null) {
                jsonWriter.key("ExclusiveStartKey");
                jsonWriter.object();
                for (Map.Entry<StringAttributeValueexclusiveStartKeyListValue : scanRequest.getExclusiveStartKey().entrySet()) {
                    if (exclusiveStartKeyListValue.getValue() != null) {
                        jsonWriter.key(exclusiveStartKeyListValue.getKey());
                        AttributeValueJsonMarshaller.getInstance().marshall(exclusiveStartKeyListValue.getValue(), jsonWriter);
                    }
                }
                jsonWriter.endObject();
            }
            if (scanRequest.getReturnConsumedCapacity() != null) {
                jsonWriter.key("ReturnConsumedCapacity").value(scanRequest.getReturnConsumedCapacity());
            }
            if (scanRequest.getTotalSegments() != null) {
                jsonWriter.key("TotalSegments").value(scanRequest.getTotalSegments());
            }
            if (scanRequest.getSegment() != null) {
                jsonWriter.key("Segment").value(scanRequest.getSegment());
            }
            if (scanRequest.getProjectionExpression() != null) {
                jsonWriter.key("ProjectionExpression").value(scanRequest.getProjectionExpression());
            }
            if (scanRequest.getFilterExpression() != null) {
                jsonWriter.key("FilterExpression").value(scanRequest.getFilterExpression());
            }
            if (scanRequest.getExpressionAttributeNames() != null) {
                jsonWriter.key("ExpressionAttributeNames");
                jsonWriter.object();
                for (Map.Entry<StringStringexpressionAttributeNamesListValue : scanRequest.getExpressionAttributeNames().entrySet()) {
                    if (expressionAttributeNamesListValue.getValue() != null) {
                        jsonWriter.key(expressionAttributeNamesListValue.getKey());
                        jsonWriter.value(expressionAttributeNamesListValue.getValue());
                    }
                }
                jsonWriter.endObject();
            }
            if (scanRequest.getExpressionAttributeValues() != null) {
                jsonWriter.key("ExpressionAttributeValues");
                jsonWriter.object();
                for (Map.Entry<StringAttributeValueexpressionAttributeValuesListValue : scanRequest.getExpressionAttributeValues().entrySet()) {
                    if (expressionAttributeValuesListValue.getValue() != null) {
                        jsonWriter.key(expressionAttributeValuesListValue.getKey());
                        AttributeValueJsonMarshaller.getInstance().marshall(expressionAttributeValuesListValue.getValue(), jsonWriter);
                    }
                }
                jsonWriter.endObject();
            }
          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-1.0");
        } catch(Throwable t) {
          throw new AmazonClientException("Unable to marshall request to JSON: " + t.getMessage(), t);
        }
        return request;
    }
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