com.amazonaws.services.dynamodbv2.model.transform.QueryRequestMarshaller Maven / Gradle / Ivy
/*
* 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.dynamodbv2.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.dynamodbv2.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.*;
/**
* Query Request Marshaller
*/
public class QueryRequestMarshaller implements Marshaller, QueryRequest> {
public Request marshall(QueryRequest queryRequest) {
if (queryRequest == null) {
throw new AmazonClientException("Invalid argument passed to marshall(...)");
}
Request request = new DefaultRequest(queryRequest, "AmazonDynamoDBv2");
String target = "DynamoDB_20120810.Query";
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 (queryRequest.getTableName() != null) {
jsonWriter.key("TableName").value(queryRequest.getTableName());
}
if (queryRequest.getIndexName() != null) {
jsonWriter.key("IndexName").value(queryRequest.getIndexName());
}
if (queryRequest.getSelect() != null) {
jsonWriter.key("Select").value(queryRequest.getSelect());
}
com.amazonaws.internal.ListWithAutoConstructFlag attributesToGetList = (com.amazonaws.internal.ListWithAutoConstructFlag)(queryRequest.getAttributesToGet());
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 (queryRequest.getLimit() != null) {
jsonWriter.key("Limit").value(queryRequest.getLimit());
}
if (queryRequest.isConsistentRead() != null) {
jsonWriter.key("ConsistentRead").value(queryRequest.isConsistentRead());
}
if (queryRequest.getKeyConditions() != null) {
jsonWriter.key("KeyConditions");
jsonWriter.object();
for (Map.Entry keyConditionsListValue : queryRequest.getKeyConditions().entrySet()) {
if (keyConditionsListValue.getValue() != null) {
jsonWriter.key(keyConditionsListValue.getKey());
jsonWriter.object();
com.amazonaws.internal.ListWithAutoConstructFlag attributeValueListList = (com.amazonaws.internal.ListWithAutoConstructFlag)(keyConditionsListValue.getValue().getAttributeValueList());
if (attributeValueListList != null && !(attributeValueListList.isAutoConstruct() && attributeValueListList.isEmpty())) {
jsonWriter.key("AttributeValueList");
jsonWriter.array();
for (AttributeValue attributeValueListListValue : attributeValueListList) {
if (attributeValueListListValue != null) {
jsonWriter.object();
if (attributeValueListListValue.getS() != null) {
jsonWriter.key("S").value(attributeValueListListValue.getS());
}
if (attributeValueListListValue.getN() != null) {
jsonWriter.key("N").value(attributeValueListListValue.getN());
}
if (attributeValueListListValue.getB() != null) {
jsonWriter.key("B").value(attributeValueListListValue.getB());
}
com.amazonaws.internal.ListWithAutoConstructFlag sSList = (com.amazonaws.internal.ListWithAutoConstructFlag)(attributeValueListListValue.getSS());
if (sSList != null && !(sSList.isAutoConstruct() && sSList.isEmpty())) {
jsonWriter.key("SS");
jsonWriter.array();
for (String sSListValue : sSList) {
if (sSListValue != null) {
jsonWriter.value(sSListValue);
}
}
jsonWriter.endArray();
}
com.amazonaws.internal.ListWithAutoConstructFlag nSList = (com.amazonaws.internal.ListWithAutoConstructFlag)(attributeValueListListValue.getNS());
if (nSList != null && !(nSList.isAutoConstruct() && nSList.isEmpty())) {
jsonWriter.key("NS");
jsonWriter.array();
for (String nSListValue : nSList) {
if (nSListValue != null) {
jsonWriter.value(nSListValue);
}
}
jsonWriter.endArray();
}
com.amazonaws.internal.ListWithAutoConstructFlag bSList = (com.amazonaws.internal.ListWithAutoConstructFlag)(attributeValueListListValue.getBS());
if (bSList != null && !(bSList.isAutoConstruct() && bSList.isEmpty())) {
jsonWriter.key("BS");
jsonWriter.array();
for (java.nio.ByteBuffer bSListValue : bSList) {
if (bSListValue != null) {
jsonWriter.value(bSListValue);
}
}
jsonWriter.endArray();
}
jsonWriter.endObject();
}
}
jsonWriter.endArray();
}
if (keyConditionsListValue.getValue().getComparisonOperator() != null) {
jsonWriter.key("ComparisonOperator").value(keyConditionsListValue.getValue().getComparisonOperator());
}
jsonWriter.endObject();
}
}
jsonWriter.endObject();
}
if (queryRequest.getQueryFilter() != null) {
jsonWriter.key("QueryFilter");
jsonWriter.object();
for (Map.Entry queryFilterListValue : queryRequest.getQueryFilter().entrySet()) {
if (queryFilterListValue.getValue() != null) {
jsonWriter.key(queryFilterListValue.getKey());
jsonWriter.object();
com.amazonaws.internal.ListWithAutoConstructFlag attributeValueListList = (com.amazonaws.internal.ListWithAutoConstructFlag)(queryFilterListValue.getValue().getAttributeValueList());
if (attributeValueListList != null && !(attributeValueListList.isAutoConstruct() && attributeValueListList.isEmpty())) {
jsonWriter.key("AttributeValueList");
jsonWriter.array();
for (AttributeValue attributeValueListListValue : attributeValueListList) {
if (attributeValueListListValue != null) {
jsonWriter.object();
if (attributeValueListListValue.getS() != null) {
jsonWriter.key("S").value(attributeValueListListValue.getS());
}
if (attributeValueListListValue.getN() != null) {
jsonWriter.key("N").value(attributeValueListListValue.getN());
}
if (attributeValueListListValue.getB() != null) {
jsonWriter.key("B").value(attributeValueListListValue.getB());
}
com.amazonaws.internal.ListWithAutoConstructFlag sSList = (com.amazonaws.internal.ListWithAutoConstructFlag)(attributeValueListListValue.getSS());
if (sSList != null && !(sSList.isAutoConstruct() && sSList.isEmpty())) {
jsonWriter.key("SS");
jsonWriter.array();
for (String sSListValue : sSList) {
if (sSListValue != null) {
jsonWriter.value(sSListValue);
}
}
jsonWriter.endArray();
}
com.amazonaws.internal.ListWithAutoConstructFlag nSList = (com.amazonaws.internal.ListWithAutoConstructFlag)(attributeValueListListValue.getNS());
if (nSList != null && !(nSList.isAutoConstruct() && nSList.isEmpty())) {
jsonWriter.key("NS");
jsonWriter.array();
for (String nSListValue : nSList) {
if (nSListValue != null) {
jsonWriter.value(nSListValue);
}
}
jsonWriter.endArray();
}
com.amazonaws.internal.ListWithAutoConstructFlag bSList = (com.amazonaws.internal.ListWithAutoConstructFlag)(attributeValueListListValue.getBS());
if (bSList != null && !(bSList.isAutoConstruct() && bSList.isEmpty())) {
jsonWriter.key("BS");
jsonWriter.array();
for (java.nio.ByteBuffer bSListValue : bSList) {
if (bSListValue != null) {
jsonWriter.value(bSListValue);
}
}
jsonWriter.endArray();
}
jsonWriter.endObject();
}
}
jsonWriter.endArray();
}
if (queryFilterListValue.getValue().getComparisonOperator() != null) {
jsonWriter.key("ComparisonOperator").value(queryFilterListValue.getValue().getComparisonOperator());
}
jsonWriter.endObject();
}
}
jsonWriter.endObject();
}
if (queryRequest.getConditionalOperator() != null) {
jsonWriter.key("ConditionalOperator").value(queryRequest.getConditionalOperator());
}
if (queryRequest.isScanIndexForward() != null) {
jsonWriter.key("ScanIndexForward").value(queryRequest.isScanIndexForward());
}
if (queryRequest.getExclusiveStartKey() != null) {
jsonWriter.key("ExclusiveStartKey");
jsonWriter.object();
for (Map.Entry exclusiveStartKeyListValue : queryRequest.getExclusiveStartKey().entrySet()) {
if (exclusiveStartKeyListValue.getValue() != null) {
jsonWriter.key(exclusiveStartKeyListValue.getKey());
jsonWriter.object();
if (exclusiveStartKeyListValue.getValue().getS() != null) {
jsonWriter.key("S").value(exclusiveStartKeyListValue.getValue().getS());
}
if (exclusiveStartKeyListValue.getValue().getN() != null) {
jsonWriter.key("N").value(exclusiveStartKeyListValue.getValue().getN());
}
if (exclusiveStartKeyListValue.getValue().getB() != null) {
jsonWriter.key("B").value(exclusiveStartKeyListValue.getValue().getB());
}
com.amazonaws.internal.ListWithAutoConstructFlag sSList = (com.amazonaws.internal.ListWithAutoConstructFlag)(exclusiveStartKeyListValue.getValue().getSS());
if (sSList != null && !(sSList.isAutoConstruct() && sSList.isEmpty())) {
jsonWriter.key("SS");
jsonWriter.array();
for (String sSListValue : sSList) {
if (sSListValue != null) {
jsonWriter.value(sSListValue);
}
}
jsonWriter.endArray();
}
com.amazonaws.internal.ListWithAutoConstructFlag nSList = (com.amazonaws.internal.ListWithAutoConstructFlag)(exclusiveStartKeyListValue.getValue().getNS());
if (nSList != null && !(nSList.isAutoConstruct() && nSList.isEmpty())) {
jsonWriter.key("NS");
jsonWriter.array();
for (String nSListValue : nSList) {
if (nSListValue != null) {
jsonWriter.value(nSListValue);
}
}
jsonWriter.endArray();
}
com.amazonaws.internal.ListWithAutoConstructFlag bSList = (com.amazonaws.internal.ListWithAutoConstructFlag)(exclusiveStartKeyListValue.getValue().getBS());
if (bSList != null && !(bSList.isAutoConstruct() && bSList.isEmpty())) {
jsonWriter.key("BS");
jsonWriter.array();
for (java.nio.ByteBuffer bSListValue : bSList) {
if (bSListValue != null) {
jsonWriter.value(bSListValue);
}
}
jsonWriter.endArray();
}
jsonWriter.endObject();
}
}
jsonWriter.endObject();
}
if (queryRequest.getReturnConsumedCapacity() != null) {
jsonWriter.key("ReturnConsumedCapacity").value(queryRequest.getReturnConsumedCapacity());
}
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-1.0");
} catch(Throwable t) {
throw new AmazonClientException("Unable to marshall request to JSON: " + t.getMessage(), t);
}
return request;
}
}
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