com.amazonaws.services.dynamodb.model.transform.GetItemRequestMarshaller Maven / Gradle / Ivy

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The Amazon Web Services SDK for Java provides Java APIs for building software on AWS' cost-effective, scalable, and reliable infrastructure products. The AWS Java SDK allows developers to code against APIs for all of Amazon's infrastructure web services (Amazon S3, Amazon EC2, Amazon SQS, Amazon Relational Database Service, Amazon AutoScaling, etc).
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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.dynamodb.model.transform;


import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.OutputStreamWriter;
import java.io.StringWriter;
import java.io.Writer;
import java.util.Map;
import java.util.List;

import com.amazonaws.AmazonClientException;
import com.amazonaws.Request;
import com.amazonaws.DefaultRequest;
import com.amazonaws.http.HttpMethodName;
import com.amazonaws.services.dynamodb.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.*;

/**
 * Get Item Request Marshaller
 * @deprecated Use {@link com.amazonaws.services.dynamodbv2.model.transform.GetItemRequestMarshaller} instead.
 */
@Deprecated
public class GetItemRequestMarshaller implements Marshaller, GetItemRequest> {

    

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

        Request request = new DefaultRequest(getItemRequest, "AmazonDynamoDB");
        String target = "DynamoDB_20111205.GetItem";
        request.addHeader("X-Amz-Target", target);
        request.addHeader("Content-Type", "application/x-amz-json-1.0");

        
        request.setHttpMethod(HttpMethodName.POST);


        String uriResourcePath = ""; 

        uriResourcePath = uriResourcePath.replaceAll("//", "/");

        if (uriResourcePath.contains("?")) {
            String queryString = uriResourcePath.substring(uriResourcePath.indexOf("?") + 1);
            uriResourcePath    = uriResourcePath.substring(0, uriResourcePath.indexOf("?"));

            for (String s : queryString.split("[;&]")) {
                String[] nameValuePair = s.split("=");
                if (nameValuePair.length == 2) {
                    request.addParameter(nameValuePair[0], nameValuePair[1]);
                } else {
                    request.addParameter(s, null);
                }
            }
        }

        request.setResourcePath(uriResourcePath);


        
        try {
          StringWriter stringWriter = new StringWriter();
          JSONWriter jsonWriter = new JSONWriter(stringWriter);

          
            
          jsonWriter.object();
          
            if (getItemRequest.getTableName() != null) {
                jsonWriter.key("TableName").value(getItemRequest.getTableName());
            }
            Key key = getItemRequest.getKey();
            if (key != null) {

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

                AttributeValue hashKeyElement = key.getHashKeyElement();
                if (hashKeyElement != null) {

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

                    if (hashKeyElement.getS() != null) {
                        jsonWriter.key("S").value(hashKeyElement.getS());
                    }
                    if (hashKeyElement.getN() != null) {
                        jsonWriter.key("N").value(hashKeyElement.getN());
                    }
                    if (hashKeyElement.getB() != null) {
                        jsonWriter.key("B").value(hashKeyElement.getB());
                    }

                    java.util.List sSList = hashKeyElement.getSS();
                    if (sSList != null && sSList.size() > 0) {

                        jsonWriter.key("SS");
                        jsonWriter.array();

                        for (String sSListValue : sSList) {
                            if (sSListValue != null) {
                                jsonWriter.value(sSListValue);
                            }
                        }
                        jsonWriter.endArray();
                    }

                    java.util.List nSList = hashKeyElement.getNS();
                    if (nSList != null && nSList.size() > 0) {

                        jsonWriter.key("NS");
                        jsonWriter.array();

                        for (String nSListValue : nSList) {
                            if (nSListValue != null) {
                                jsonWriter.value(nSListValue);
                            }
                        }
                        jsonWriter.endArray();
                    }

                    java.util.List bSList = hashKeyElement.getBS();
                    if (bSList != null && bSList.size() > 0) {

                        jsonWriter.key("BS");
                        jsonWriter.array();

                        for (java.nio.ByteBuffer bSListValue : bSList) {
                            if (bSListValue != null) {
                                jsonWriter.value(bSListValue);
                            }
                        }
                        jsonWriter.endArray();
                    }
                    jsonWriter.endObject();
                }
                AttributeValue rangeKeyElement = key.getRangeKeyElement();
                if (rangeKeyElement != null) {

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

                    if (rangeKeyElement.getS() != null) {
                        jsonWriter.key("S").value(rangeKeyElement.getS());
                    }
                    if (rangeKeyElement.getN() != null) {
                        jsonWriter.key("N").value(rangeKeyElement.getN());
                    }
                    if (rangeKeyElement.getB() != null) {
                        jsonWriter.key("B").value(rangeKeyElement.getB());
                    }

                    java.util.List sSList = rangeKeyElement.getSS();
                    if (sSList != null && sSList.size() > 0) {

                        jsonWriter.key("SS");
                        jsonWriter.array();

                        for (String sSListValue : sSList) {
                            if (sSListValue != null) {
                                jsonWriter.value(sSListValue);
                            }
                        }
                        jsonWriter.endArray();
                    }

                    java.util.List nSList = rangeKeyElement.getNS();
                    if (nSList != null && nSList.size() > 0) {

                        jsonWriter.key("NS");
                        jsonWriter.array();

                        for (String nSListValue : nSList) {
                            if (nSListValue != null) {
                                jsonWriter.value(nSListValue);
                            }
                        }
                        jsonWriter.endArray();
                    }

                    java.util.List bSList = rangeKeyElement.getBS();
                    if (bSList != null && bSList.size() > 0) {

                        jsonWriter.key("BS");
                        jsonWriter.array();

                        for (java.nio.ByteBuffer bSListValue : bSList) {
                            if (bSListValue != null) {
                                jsonWriter.value(bSListValue);
                            }
                        }
                        jsonWriter.endArray();
                    }
                    jsonWriter.endObject();
                }
                jsonWriter.endObject();
            }

            java.util.List attributesToGetList = getItemRequest.getAttributesToGet();
            if (attributesToGetList != null && attributesToGetList.size() > 0) {

                jsonWriter.key("AttributesToGet");
                jsonWriter.array();

                for (String attributesToGetListValue : attributesToGetList) {
                    if (attributesToGetListValue != null) {
                        jsonWriter.value(attributesToGetListValue);
                    }
                }
                jsonWriter.endArray();
            }
            if (getItemRequest.isConsistentRead() != null) {
                jsonWriter.key("ConsistentRead").value(getItemRequest.isConsistentRead());
            }

          jsonWriter.endObject();
          

          String snippet = stringWriter.toString();
          byte[] content = snippet.getBytes("UTF-8");
          request.setContent(new StringInputStream(snippet));
          request.addHeader("Content-Length", Integer.toString(content.length));
        } catch(Throwable t) {
          throw new AmazonClientException("Unable to marshall request to JSON: " + t.getMessage(), t);
        }
        

        return request;
    }

    private String getString(String s) {
        if (s == null) return "";
        return s;
    }
}