/*
* Copyright 2010-2012 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.StringUtils;
import com.amazonaws.util.StringInputStream;
import com.amazonaws.util.json.*;
/**
* Delete Item Request Marshaller
*/
public class DeleteItemRequestMarshaller implements Marshaller<Request<DeleteItemRequest>, DeleteItemRequest> {
public Request<DeleteItemRequest> marshall(DeleteItemRequest deleteItemRequest) {
if (deleteItemRequest == null) {
throw new AmazonClientException("Invalid argument passed to marshall(...)");
}
Request<DeleteItemRequest> request = new DefaultRequest<DeleteItemRequest>(deleteItemRequest, "AmazonDynamoDB");
String target = "DynamoDB_20111205.DeleteItem";
request.addHeader("X-Amz-Target", target);
request.addHeader("Content-Type", "application/x-amz-json-1.0");
request.setHttpMethod(HttpMethodName.POST);
String uriResourcePath = "";
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 (deleteItemRequest.getTableName() != null) {
jsonWriter.key("TableName").value(deleteItemRequest.getTableName());
}
Key key = deleteItemRequest.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<String> sSList = hashKeyElement.getSS();
if (sSList != null && sSList.size() > 0) {
jsonWriter.key("SS");
jsonWriter.array();
for (String sSListValue : sSList) {
jsonWriter.value(sSListValue);
}
jsonWriter.endArray();
}
java.util.List<String> nSList = hashKeyElement.getNS();
if (nSList != null && nSList.size() > 0) {
jsonWriter.key("NS");
jsonWriter.array();
for (String nSListValue : nSList) {
jsonWriter.value(nSListValue);
}
jsonWriter.endArray();
}
java.util.List<java.nio.ByteBuffer> bSList = hashKeyElement.getBS();
if (bSList != null && bSList.size() > 0) {
jsonWriter.key("BS");
jsonWriter.array();
for (java.nio.ByteBuffer bSListValue : bSList) {
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<String> sSList = rangeKeyElement.getSS();
if (sSList != null && sSList.size() > 0) {
jsonWriter.key("SS");
jsonWriter.array();
for (String sSListValue : sSList) {
jsonWriter.value(sSListValue);
}
jsonWriter.endArray();
}
java.util.List<String> nSList = rangeKeyElement.getNS();
if (nSList != null && nSList.size() > 0) {
jsonWriter.key("NS");
jsonWriter.array();
for (String nSListValue : nSList) {
jsonWriter.value(nSListValue);
}
jsonWriter.endArray();
}
java.util.List<java.nio.ByteBuffer> bSList = rangeKeyElement.getBS();
if (bSList != null && bSList.size() > 0) {
jsonWriter.key("BS");
jsonWriter.array();
for (java.nio.ByteBuffer bSListValue : bSList) {
jsonWriter.value(bSListValue);
}
jsonWriter.endArray();
}
jsonWriter.endObject();
}
jsonWriter.endObject();
}
if (deleteItemRequest.getExpected() != null) {
jsonWriter.key("Expected");
jsonWriter.object();
for (Map.Entry<String, ExpectedAttributeValue> expectedListValue : deleteItemRequest.getExpected().entrySet()) {
if (expectedListValue.getValue() != null) {
jsonWriter.key(expectedListValue.getKey());
jsonWriter.object();
AttributeValue value = expectedListValue.getValue().getValue();
if (value != null) {
jsonWriter.key("Value");
jsonWriter.object();
if (value.getS() != null) {
jsonWriter.key("S").value(value.getS());
}
if (value.getN() != null) {
jsonWriter.key("N").value(value.getN());
}
if (value.getB() != null) {
jsonWriter.key("B").value(value.getB());
}
java.util.List<String> sSList = value.getSS();
if (sSList != null && sSList.size() > 0) {
jsonWriter.key("SS");
jsonWriter.array();
for (String sSListValue : sSList) {
jsonWriter.value(sSListValue);
}
jsonWriter.endArray();
}
java.util.List<String> nSList = value.getNS();
if (nSList != null && nSList.size() > 0) {
jsonWriter.key("NS");
jsonWriter.array();
for (String nSListValue : nSList) {
jsonWriter.value(nSListValue);
}
jsonWriter.endArray();
}
java.util.List<java.nio.ByteBuffer> bSList = value.getBS();
if (bSList != null && bSList.size() > 0) {
jsonWriter.key("BS");
jsonWriter.array();
for (java.nio.ByteBuffer bSListValue : bSList) {
jsonWriter.value(bSListValue);
}
jsonWriter.endArray();
}
jsonWriter.endObject();
}
if (expectedListValue.getValue().isExists() != null) {
jsonWriter.key("Exists").value(expectedListValue.getValue().isExists());
}
jsonWriter.endObject();
}
}
jsonWriter.endObject();
}
if (deleteItemRequest.getReturnValues() != null) {
jsonWriter.key("ReturnValues").value(deleteItemRequest.getReturnValues());
}
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;
}
}