/*
* Copyright 2014-2014 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.document.quickstart;
import org.junit.Test;
import com.amazonaws.services.dynamodbv2.document.Item;
import com.amazonaws.services.dynamodbv2.document.Table;
import com.amazonaws.services.dynamodbv2.document.spec.GetItemSpec;
import com.amazonaws.services.dynamodbv2.document.spec.UpdateItemSpec;
import com.amazonaws.services.dynamodbv2.document.utils.AbstractQuickStart;
import com.amazonaws.services.dynamodbv2.document.utils.ValueMap;
public class B_PutItemJacksonTest extends AbstractQuickStart {
@Test
public void howToPutItems_withJSONDoc() {
String json = "{"
+ "\"person_id\" : 123 ,"
+ "\"last_name\" : \"Barr\" ,"
+ "\"first_name\" : \"Jeff\" ,"
+ "\"current_city\" : \"Tokyo\" ,"
+ "\"next_haircut\" : {"
+ "\"year\" : 2014 ,"
+ "\"month\" : 10 ,"
+ "\"day\" : 30"
+ "} ,"
+ "\"children\" :"
+ "[ \"SJB\" , \"ASB\" , \"CGB\" , \"BGB\" , \"GTB\" ]"
+ "}"
;
Table table = dynamo.getTable(TABLE_NAME);
Item item = new Item()
.withPrimaryKey(HASH_KEY_NAME, "howToPutItems_withJSONDoc", RANGE_KEY_NAME, 1)
// Store JSON document
.withJSON("document", json);
table.putItem(item);
// Retrieve the entire document and the entire document only
Item documentItem = table.getItem(new GetItemSpec()
.withPrimaryKey(HASH_KEY_NAME, "howToPutItems_withJSONDoc", RANGE_KEY_NAME, 1)
.withAttributesToGet("document"));
System.out.println(documentItem.getJSON("document"));
// Output: {"last_name":"Barr","children":["SJB","ASB","CGB","BGB","GTB"],"first_name":"Jeff","person_id":123,"current_city":"Tokyo","next_haircut":{"month":10,"year":2014,"day":30}}
System.out.println(documentItem.getJSONPretty("document"));
// Output:
// {
// "last_name" : "Barr",
// "children" : [ "SJB", "ASB", "CGB", "BGB", "GTB" ],
// "first_name" : "Jeff",
// "person_id" : 123,
// "current_city" : "Tokyo",
// "next_haircut" : {
// "month" : 10,
// "year" : 2014,
// "day" : 30
// }
// } // Retrieve part of a document. Perhaps I need the next_haircut and nothing else
Item partialDocItem = table.getItem(new GetItemSpec()
.withPrimaryKey(HASH_KEY_NAME, "howToPutItems_withJSONDoc", RANGE_KEY_NAME, 1)
.withProjectionExpression("document.next_haircut"))
;
System.out.println(partialDocItem);
// Output: { Item: {document={next_haircut={month=10, year=2014, day=30}}} }
// I can update part of a document. Here's how I would change my current_city back to Seattle:
table.updateItem(new UpdateItemSpec()
.withPrimaryKey(HASH_KEY_NAME, "howToPutItems_withJSONDoc", RANGE_KEY_NAME, 1)
.withUpdateExpression("SET document.current_city = :city")
.withValueMap(new ValueMap().withString(":city", "Seattle"))
);
// Retrieve the entire item
Item itemUpdated = table.getItem(HASH_KEY_NAME, "howToPutItems_withJSONDoc", RANGE_KEY_NAME, 1);
System.out.println(itemUpdated);
// Output: { Item: {document={last_name=Bar, children=[SJB, ASB, CGB, BGB, GTB], first_name=Jeff, current_city=Seattle, next_haircut={month=10, year=2014, day=30}}, myRangeKey=1, myHashKey=B_PutItemJsonTest} }
System.out.println(itemUpdated.getJSONPretty("document"));
// Output:
// {
// "last_name" : "Barr",
// "children" : [ "SJB", "ASB", "CGB", "BGB", "GTB" ],
// "first_name" : "Jeff",
// "current_city" : "Seattle",
// "person_id" : 123,
// "next_haircut" : {
// "month" : 10,
// "year" : 2014,
// "day" : 30
// }
// }
}
@Test
public void howToPut_TopLevelJSON() {
String json = "{"
+ "\"person_id\" : 123 ,"
+ "\"last_name\" : \"Barr\" ,"
+ "\"first_name\" : \"Jeff\" ,"
+ "\"current_city\" : \"Tokyo\" ,"
+ "\"next_haircut\" : {"
+ "\"year\" : 2014 ,"
+ "\"month\" : 10 ,"
+ "\"day\" : 30"
+ "} ,"
+ "\"children\" :"
+ "[ \"SJB\" , \"ASB\" , \"CGB\" , \"BGB\" , \"GTB\" ]"
+ "}"
;
Table table = dynamo.getTable(TABLE_NAME);
Item item = Item.fromJSON(json)
// We don't even need to set the primary key if it's already included in the JSON document
.withPrimaryKey(HASH_KEY_NAME, "howToPut_TopLevelJSON", RANGE_KEY_NAME, 1);
table.putItem(item);
// Retrieve the entire document and the entire document only
Item documentItem = table.getItem(new GetItemSpec()
.withPrimaryKey(HASH_KEY_NAME, "howToPut_TopLevelJSON", RANGE_KEY_NAME, 1));
System.out.println(documentItem.toJSON());
// Output: {"first_name":"Jeff","myRangeKey":1,"person_id":123,"current_city":"Tokyo","next_haircut":{"month":10,"year":2014,"day":30},"last_name":"Barr","children":["SJB","ASB","CGB","BGB","GTB"],"myHashKey":"howToPut_TopLevelJSON"}
System.out.println(documentItem.toJSONPretty());
// Output:
// {
// "first_name" : "Jeff",
// "myRangeKey" : 1,
// "person_id" : 123,
// "current_city" : "Tokyo",
// "next_haircut" : {
// "month" : 10,
// "year" : 2014,
// "day" : 30
// },
// "last_name" : "Barr",
// "children" : [ "SJB", "ASB", "CGB", "BGB", "GTB" ],
// "myHashKey" : "howToPut_TopLevelJSON"
// }
// Retrieve part of a document. Perhaps I need the next_haircut and nothing else
Item partialDocItem = table.getItem(new GetItemSpec()
.withPrimaryKey(HASH_KEY_NAME, "howToPut_TopLevelJSON", RANGE_KEY_NAME, 1)
.withProjectionExpression("next_haircut"))
;
System.out.println(partialDocItem);
// Output: { Item: {next_haircut={month=10, year=2014, day=30}} }
// I can update part of a document. Here's how I would change my current_city back to Seattle:
table.updateItem(new UpdateItemSpec()
.withPrimaryKey(HASH_KEY_NAME, "howToPut_TopLevelJSON", RANGE_KEY_NAME, 1)
.withUpdateExpression("SET current_city = :city")
.withValueMap(new ValueMap().withString(":city", "Seattle"))
);
// Retrieve the entire item
Item itemUpdated = table.getItem(HASH_KEY_NAME, "howToPut_TopLevelJSON", RANGE_KEY_NAME, 1);
System.out.println(itemUpdated);
// Output: { Item: {first_name=Jeff, myRangeKey=1, person_id=123, current_city=Seattle, next_haircut={month=10, year=2014, day=30}, last_name=Barr, children=[SJB, ASB, CGB, BGB, GTB], myHashKey=howToPut_TopLevelJSON} }
System.out.println(itemUpdated.toJSONPretty());
// Output:
// {
// "first_name" : "Jeff",
// "myRangeKey" : 1,
// "person_id" : 123,
// "current_city" : "Seattle",
// "next_haircut" : {
// "month" : 10,
// "year" : 2014,
// "day" : 30
// },
// "last_name" : "Barr",
// "children" : [ "SJB", "ASB", "CGB", "BGB", "GTB" ],
// "myHashKey" : "howToPut_TopLevelJSON"
// }
}
}