com.amazonaws.services.dynamodbv2.model.transform.KeysAndAttributesJsonMarshaller Maven / Gradle / Ivy
/*
* Copyright 2010-2018 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 com.amazonaws.services.dynamodbv2.model.*;
import com.amazonaws.util.json.AwsJsonWriter;
/**
* JSON marshaller for POJO KeysAndAttributes
*/
class KeysAndAttributesJsonMarshaller {
public void marshall(KeysAndAttributes keysAndAttributes, AwsJsonWriter jsonWriter)
throws Exception {
jsonWriter.beginObject();
if (keysAndAttributes.getKeys() != null) {
java.util.List> keys = keysAndAttributes
.getKeys();
jsonWriter.name("Keys");
jsonWriter.beginArray();
for (java.util.Map keysItem : keys) {
if (keysItem != null) {
jsonWriter.beginObject();
for (java.util.Map.Entry keysItemEntry : keysItem
.entrySet()) {
AttributeValue keysItemValue = keysItemEntry.getValue();
if (keysItemValue != null) {
jsonWriter.name(keysItemEntry.getKey());
AttributeValueJsonMarshaller.getInstance().marshall(keysItemValue,
jsonWriter);
}
}
jsonWriter.endObject();
}
}
jsonWriter.endArray();
}
if (keysAndAttributes.getAttributesToGet() != null) {
java.util.List attributesToGet = keysAndAttributes.getAttributesToGet();
jsonWriter.name("AttributesToGet");
jsonWriter.beginArray();
for (String attributesToGetItem : attributesToGet) {
if (attributesToGetItem != null) {
jsonWriter.value(attributesToGetItem);
}
}
jsonWriter.endArray();
}
if (keysAndAttributes.getConsistentRead() != null) {
Boolean consistentRead = keysAndAttributes.getConsistentRead();
jsonWriter.name("ConsistentRead");
jsonWriter.value(consistentRead);
}
if (keysAndAttributes.getProjectionExpression() != null) {
String projectionExpression = keysAndAttributes.getProjectionExpression();
jsonWriter.name("ProjectionExpression");
jsonWriter.value(projectionExpression);
}
if (keysAndAttributes.getExpressionAttributeNames() != null) {
java.util.Map expressionAttributeNames = keysAndAttributes
.getExpressionAttributeNames();
jsonWriter.name("ExpressionAttributeNames");
jsonWriter.beginObject();
for (java.util.Map.Entry expressionAttributeNamesEntry : expressionAttributeNames
.entrySet()) {
String expressionAttributeNamesValue = expressionAttributeNamesEntry.getValue();
if (expressionAttributeNamesValue != null) {
jsonWriter.name(expressionAttributeNamesEntry.getKey());
jsonWriter.value(expressionAttributeNamesValue);
}
}
jsonWriter.endObject();
}
jsonWriter.endObject();
}
private static KeysAndAttributesJsonMarshaller instance;
public static KeysAndAttributesJsonMarshaller getInstance() {
if (instance == null)
instance = new KeysAndAttributesJsonMarshaller();
return instance;
}
}