com.amazonaws.services.dynamodbv2.AmazonDynamoDBClientBuilder Java Examples
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com.amazonaws.services.dynamodbv2.AmazonDynamoDBClientBuilder.
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Example #1
Source File: DBUtil.java From chatbot with Apache License 2.0 | 8 votes |
private static AmazonDynamoDB getClient() { if (null != dynamodbClient) { return dynamodbClient; } String region = System.getProperty("DYNAMODB_REGION"); if (null == region) { System.err.println("Region not set, default \"" + Regions.US_EAST_1.name() + "\" is used"); region = Regions.US_EAST_1.name(); } System.out.println("DynamoDB region: " + region); dynamodbClient = AmazonDynamoDBClientBuilder.standard() .withRegion(region) .build(); return dynamodbClient; }
Example #2
Source File: AwsClientTracingTest.java From zipkin-aws with Apache License 2.0 | 6 votes |
@Before public void setup() { String endpoint = "http://localhost:" + mockServer.getPort(); HttpTracing httpTracing = HttpTracing.create(tracing); AmazonDynamoDBClientBuilder clientBuilder = AmazonDynamoDBClientBuilder.standard() .withCredentials( new AWSStaticCredentialsProvider(new BasicAWSCredentials("access", "secret"))) .withEndpointConfiguration( new AwsClientBuilder.EndpointConfiguration(endpoint, "us-east-1")); dbClient = AwsClientTracing.create(httpTracing).build(clientBuilder); s3Client = AwsClientTracing.create(httpTracing).build(AmazonS3ClientBuilder.standard() .withCredentials( new AWSStaticCredentialsProvider(new BasicAWSCredentials("access", "secret"))) .withEndpointConfiguration( new AwsClientBuilder.EndpointConfiguration(endpoint, "us-east-1")) .enableForceGlobalBucketAccess()); }
Example #3
Source File: DynamoDBUtil.java From serverless with Apache License 2.0 | 6 votes |
public static final AmazonDynamoDB getClient() { if (null != dynamodbClient) { return dynamodbClient; } String region = System.getenv("DYNAMODB_REGION"); if (null == region) { System.err.println("Region is null, using default \"" + Regions.US_WEST_1 + "\""); region = Regions.US_WEST_1.name(); } System.out.println("DynamoDB region: " + region); dynamodbClient = AmazonDynamoDBClientBuilder.standard() .withRegion(region) .build(); System.out.println("Got DynamoDB client..."); return dynamodbClient; }
Example #4
Source File: DBUtil.java From alexa-skill-java with Apache License 2.0 | 6 votes |
private static AmazonDynamoDB getClient() { if (null != dynamodbClient) { return dynamodbClient; } String region = System.getProperty("DYNAMODB_REGION"); if (null == region) { System.err.println("Region not set, default \"" + Regions.US_EAST_1.name() + "\" is used"); region = Regions.US_EAST_1.name(); } System.out.println("DynamoDB region: " + region); dynamodbClient = AmazonDynamoDBClientBuilder.standard() .withRegion(region) .build(); return dynamodbClient; }
Example #5
Source File: MostRecentEncryptedItem.java From aws-dynamodb-encryption-java with Apache License 2.0 | 6 votes |
public static void main(String[] args) throws GeneralSecurityException { final String mode = args[0]; final String region = args[1]; final String tableName = args[2]; final String keyTableName = args[3]; final String cmkArn = args[4]; final String materialName = args[5]; if (mode.equalsIgnoreCase("--setup")) { AmazonDynamoDB ddb = AmazonDynamoDBClientBuilder.standard().withRegion(region).build(); MetaStore.createTable(ddb, keyTableName, new ProvisionedThroughput(1L, 1L)); return; } encryptRecord(tableName, keyTableName, region, cmkArn, materialName); }
Example #6
Source File: EncryptionContextOverridesWithDynamoDBMapper.java From aws-dynamodb-encryption-java with Apache License 2.0 | 6 votes |
public static void main(String[] args) throws GeneralSecurityException { final String cmkArn = args[0]; final String region = args[1]; final String encryptionContextTableName = args[2]; AmazonDynamoDB ddb = null; AWSKMS kms = null; try { ddb = AmazonDynamoDBClientBuilder.standard().withRegion(region).build(); kms = AWSKMSClientBuilder.standard().withRegion(region).build(); encryptRecord(cmkArn, encryptionContextTableName, ddb, kms); } finally { if (ddb != null) { ddb.shutdown(); } if (kms != null) { kms.shutdown(); } } }
Example #7
Source File: MoviesDeleteTable.java From aws-doc-sdk-examples with Apache License 2.0 | 6 votes |
public static void main(String[] args) throws Exception { AmazonDynamoDB client = AmazonDynamoDBClientBuilder.standard() .withEndpointConfiguration(new AwsClientBuilder.EndpointConfiguration("http://localhost:8000", "us-west-2")) .build(); DynamoDB dynamoDB = new DynamoDB(client); Table table = dynamoDB.getTable("Movies"); try { System.out.println("Attempting to delete table; please wait..."); table.delete(); table.waitForDelete(); System.out.print("Success."); } catch (Exception e) { System.err.println("Unable to delete table: "); System.err.println(e.getMessage()); } }
Example #8
Source File: DynamoDBLocalFixture.java From aws-dynamodb-examples with Apache License 2.0 | 6 votes |
/** * You can use mvn to run DynamoDBLocalFixture, e.g. * <p> * $ mvn clean package * <p> * $ mvn exec:java -Dexec.mainClass="com.amazonaws.services.dynamodbv2.DynamoDBLocalFixture" \ * -Dexec.classpathScope="test" \ * -Dsqlite4java.library.path=target/dependencies * <p> * It's recommended to run "aws configure" one time before you run DynamoDBLocalFixture * * @param args - no args * @throws Exception */ public static void main(String[] args) throws Exception { AmazonDynamoDB dynamodb = null; try { // Create an in-memory and in-process instance of DynamoDB Local that skips HTTP dynamodb = DynamoDBEmbedded.create().amazonDynamoDB(); // use the DynamoDB API with DynamoDBEmbedded listTables(dynamodb.listTables(), "DynamoDB Embedded"); } finally { // Shutdown the thread pools in DynamoDB Local / Embedded if(dynamodb != null) { dynamodb.shutdown(); } } // Create an in-memory and in-process instance of DynamoDB Local that runs over HTTP final String[] localArgs = { "-inMemory" }; DynamoDBProxyServer server = null; try { server = ServerRunner.createServerFromCommandLineArgs(localArgs); server.start(); dynamodb = AmazonDynamoDBClientBuilder.standard().withEndpointConfiguration( // we can use any region here new AwsClientBuilder.EndpointConfiguration("http://localhost:8000", "us-west-2")) .build(); // use the DynamoDB API over HTTP listTables(dynamodb.listTables(), "DynamoDB Local over HTTP"); } finally { // Stop the DynamoDB Local endpoint if(server != null) { server.stop(); } } }
Example #9
Source File: DynaliteContainer.java From testcontainers-java with MIT License | 5 votes |
/** * Gets a preconfigured {@link AmazonDynamoDB} client object for connecting to this * container. * * @return preconfigured client */ public AmazonDynamoDB getClient() { return AmazonDynamoDBClientBuilder.standard() .withEndpointConfiguration(getEndpointConfiguration()) .withCredentials(getCredentials()) .build(); }
Example #10
Source File: DeleteItem.java From aws-doc-sdk-examples with Apache License 2.0 | 5 votes |
public static void main(String[] args) { final String USAGE = "\n" + "Usage:\n" + " DeleteItem <table> <name>\n\n" + "Where:\n" + " table - the table to delete the item from.\n" + " name - the item to delete from the table,\n" + " using the primary key \"Name\"\n\n" + "Example:\n" + " DeleteItem HelloTable World\n\n" + "**Warning** This program will actually delete the item\n" + " that you specify!\n"; if (args.length < 2) { System.out.println(USAGE); System.exit(1); } String table_name = args[0]; String name = args[1]; System.out.format("Deleting item \"%s\" from %s\n", name, table_name); HashMap<String,AttributeValue> key_to_get = new HashMap<String,AttributeValue>(); key_to_get.put("Name", new AttributeValue(name)); final AmazonDynamoDB ddb = AmazonDynamoDBClientBuilder.defaultClient(); try { ddb.deleteItem(table_name, key_to_get); } catch (AmazonServiceException e) { System.err.println(e.getErrorMessage()); System.exit(1); } System.out.println("Done!"); }
Example #11
Source File: DynamoDbDelegate.java From dynamodb-janusgraph-storage-backend with Apache License 2.0 | 5 votes |
public DynamoDbDelegate(final String endpoint, final String region, final AWSCredentialsProvider provider, final ClientConfiguration clientConfig, final Configuration titanConfig, final Map<String, RateLimiter> readRateLimit, final Map<String, RateLimiter> writeRateLimit, final long maxRetries, final long retryMillis, final String prefix, final String metricsPrefix, final RateLimiter controlPlaneRateLimiter) { if (prefix == null) { throw new IllegalArgumentException("prefix must be set"); } if (metricsPrefix == null || metricsPrefix.isEmpty()) { throw new IllegalArgumentException("metrics-prefix may not be null or empty"); } this.metricsPrefix = metricsPrefix; executorGaugeName = String.format("%s.%s_executor-queue-size", this.metricsPrefix, prefix); clientThreadPool = getPoolFromNs(titanConfig); if (!MetricManager.INSTANCE.getRegistry().getNames().contains(executorGaugeName)) { MetricManager.INSTANCE.getRegistry().register(executorGaugeName, (Gauge<Integer>) () -> clientThreadPool.getQueue().size()); } client = AmazonDynamoDBClientBuilder.standard() .withCredentials(provider) .withClientConfiguration(clientConfig) .withEndpointConfiguration(getEndpointConfiguration(Optional.ofNullable(endpoint), region)) .build(); this.readRateLimit = readRateLimit; this.writeRateLimit = writeRateLimit; this.controlPlaneRateLimiter = controlPlaneRateLimiter; this.maxConcurrentUsers = titanConfig.get(Constants.DYNAMODB_CLIENT_EXECUTOR_MAX_CONCURRENT_OPERATIONS); this.maxRetries = maxRetries; this.retryMillis = retryMillis; if (maxConcurrentUsers < 1) { throw new IllegalArgumentException("need at least one user otherwise wont make progress on scan"); } this.listTablesApiName = String.format("%s_ListTables", prefix); }
Example #12
Source File: DynaliteContainerTest.java From testcontainers-java with MIT License | 5 votes |
@Test public void simpleTestWithManualClientCreation() { final AmazonDynamoDB client = AmazonDynamoDBClientBuilder.standard() .withEndpointConfiguration(dynamoDB.getEndpointConfiguration()) .withCredentials(dynamoDB.getCredentials()) .build(); runTest(client); }
Example #13
Source File: AwsKmsEncryptedObject.java From aws-dynamodb-encryption-java with Apache License 2.0 | 5 votes |
public static void encryptRecord(final String cmkArn, final String region) { // Sample object to be encrypted DataPoJo record = new DataPoJo(); record.setPartitionAttribute("is this"); record.setSortAttribute(55); record.setExample("data"); record.setSomeNumbers(99); record.setSomeBinary(new byte[]{0x00, 0x01, 0x02}); record.setLeaveMe("alone"); // Set up our configuration and clients final AmazonDynamoDB ddb = AmazonDynamoDBClientBuilder.standard().withRegion(region).build(); final AWSKMS kms = AWSKMSClientBuilder.standard().withRegion(region).build(); final DirectKmsMaterialProvider cmp = new DirectKmsMaterialProvider(kms, cmkArn); // Encryptor creation final DynamoDBEncryptor encryptor = DynamoDBEncryptor.getInstance(cmp); // Mapper Creation // Please note the use of SaveBehavior.PUT (SaveBehavior.CLOBBER works as well). // Omitting this can result in data-corruption. DynamoDBMapperConfig mapperConfig = DynamoDBMapperConfig.builder().withSaveBehavior(SaveBehavior.PUT).build(); DynamoDBMapper mapper = new DynamoDBMapper(ddb, mapperConfig, new AttributeEncryptor(encryptor)); System.out.println("Plaintext Record: " + record); // Save the item to the DynamoDB table mapper.save(record); // Retrieve the encrypted item (directly without decrypting) from Dynamo so we can see it in our example final Map<String, AttributeValue> itemKey = new HashMap<>(); itemKey.put("partition_attribute", new AttributeValue().withS("is this")); itemKey.put("sort_attribute", new AttributeValue().withN("55")); System.out.println("Encrypted Record: " + ddb.getItem("ExampleTable", itemKey).getItem()); // Retrieve (and decrypt) it from DynamoDB DataPoJo decrypted_record = mapper.load(DataPoJo.class, "is this", 55); System.out.println("Decrypted Record: " + decrypted_record); }
Example #14
Source File: DynamoDBClientFetcherImpl.java From athenz with Apache License 2.0 | 5 votes |
private DynamoDBClientAndCredentials getAuthenticatedDynamoDBClient(DynamoDBClientSettings dynamoDBClientSettings, ZTSClientNotificationSender ztsClientNotificationSender) { AWSCredentialsProviderImpl credentialsProvider = getCredentials(dynamoDBClientSettings, ztsClientNotificationSender); AmazonDynamoDB client = AmazonDynamoDBClientBuilder.standard() .withCredentials(credentialsProvider) .withRegion(dynamoDBClientSettings.getRegion()) .build(); return new DynamoDBClientAndCredentials(client, credentialsProvider); }
Example #15
Source File: DynamoDBSourceConfig.java From pulsar with Apache License 2.0 | 5 votes |
public AmazonDynamoDB buildDynamoDBClient(AwsCredentialProviderPlugin credPlugin) { AmazonDynamoDBClientBuilder builder = AmazonDynamoDBClientBuilder.standard(); if (!this.getAwsEndpoint().isEmpty()) { builder.setEndpointConfiguration(new AwsClientBuilder.EndpointConfiguration(this.getDynamoEndpoint(), this.getAwsRegion())); } if (!this.getAwsRegion().isEmpty()) { builder.setRegion(this.getAwsRegion()); } builder.setCredentials(credPlugin.getCredentialProvider()); return builder.build(); }
Example #16
Source File: APIDemoHandler.java From tutorials with MIT License | 5 votes |
@Override public void handleRequest(InputStream inputStream, OutputStream outputStream, Context context) throws IOException { BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream)); JSONObject responseJson = new JSONObject(); AmazonDynamoDB client = AmazonDynamoDBClientBuilder.defaultClient(); DynamoDB dynamoDb = new DynamoDB(client); try { JSONObject event = (JSONObject) parser.parse(reader); if (event.get("body") != null) { Person person = new Person((String) event.get("body")); dynamoDb.getTable(DYNAMODB_TABLE_NAME) .putItem(new PutItemSpec().withItem(new Item().withNumber("id", person.getId()) .withString("name", person.getName()))); } JSONObject responseBody = new JSONObject(); responseBody.put("message", "New item created"); JSONObject headerJson = new JSONObject(); headerJson.put("x-custom-header", "my custom header value"); responseJson.put("statusCode", 200); responseJson.put("headers", headerJson); responseJson.put("body", responseBody.toString()); } catch (ParseException pex) { responseJson.put("statusCode", 400); responseJson.put("exception", pex); } OutputStreamWriter writer = new OutputStreamWriter(outputStream, "UTF-8"); writer.write(responseJson.toString()); writer.close(); }
Example #17
Source File: AwsClient.java From cloudbreak with Apache License 2.0 | 5 votes |
public AmazonDynamoDB createDynamoDbClient(AwsCredentialView awsCredential, String region) { return AmazonDynamoDBClientBuilder.standard() .withClientConfiguration(getDynamoDbClientConfiguration()) .withCredentials(getCredentialProvider(awsCredential)) .withRegion(region) .build(); }
Example #18
Source File: DynamoDBIOTestHelper.java From beam with Apache License 2.0 | 5 votes |
static AmazonDynamoDB getDynamoDBClient() { // Note: each test case got to have their own dynamo client obj, can't be shared // Otherwise will run into connection pool issue return AmazonDynamoDBClientBuilder.standard() .withEndpointConfiguration( localStackContainer.getEndpointConfiguration(LocalStackContainer.Service.DYNAMODB)) .withCredentials(localStackContainer.getDefaultCredentialsProvider()) .build(); }
Example #19
Source File: DeleteTable.java From aws-doc-sdk-examples with Apache License 2.0 | 5 votes |
public static void main(String[] args) { final String USAGE = "\n" + "Usage:\n" + " DeleteTable <table>\n\n" + "Where:\n" + " table - the table to delete.\n\n" + "Example:\n" + " DeleteTable Greetings\n\n" + "**Warning** This program will actually delete the table\n" + " that you specify!\n"; if (args.length < 1) { System.out.println(USAGE); System.exit(1); } String table_name = args[0]; System.out.format("Deleting table %s...\n", table_name); final AmazonDynamoDB ddb = AmazonDynamoDBClientBuilder.defaultClient(); try { ddb.deleteTable(table_name); } catch (AmazonServiceException e) { System.err.println(e.getErrorMessage()); System.exit(1); } System.out.println("Done!"); }
Example #20
Source File: MoviesCreateTable.java From aws-doc-sdk-examples with Apache License 2.0 | 5 votes |
public static void main(String[] args) throws Exception { AmazonDynamoDB client = AmazonDynamoDBClientBuilder.standard() .withEndpointConfiguration(new AwsClientBuilder.EndpointConfiguration("http://localhost:8000", "us-west-2")) .build(); DynamoDB dynamoDB = new DynamoDB(client); String tableName = "Movies"; try { System.out.println("Attempting to create table; please wait..."); Table table = dynamoDB.createTable(tableName, Arrays.asList(new KeySchemaElement("year", KeyType.HASH), // Partition // key new KeySchemaElement("title", KeyType.RANGE)), // Sort key Arrays.asList(new AttributeDefinition("year", ScalarAttributeType.N), new AttributeDefinition("title", ScalarAttributeType.S)), new ProvisionedThroughput(10L, 10L)); table.waitForActive(); System.out.println("Success. Table status: " + table.getDescription().getTableStatus()); } catch (Exception e) { System.err.println("Unable to create table: "); System.err.println(e.getMessage()); } }
Example #21
Source File: DynamoDBIOTestHelper.java From beam with Apache License 2.0 | 5 votes |
static void startServerClient() { localStackContainer.start(); if (dynamoDBClient == null) { dynamoDBClient = AmazonDynamoDBClientBuilder.standard() .withEndpointConfiguration( localStackContainer.getEndpointConfiguration( LocalStackContainer.Service.DYNAMODB)) .withCredentials(localStackContainer.getDefaultCredentialsProvider()) .build(); } }
Example #22
Source File: BasicDynamoDBProvider.java From beam with Apache License 2.0 | 5 votes |
@Override public AmazonDynamoDB createDynamoDB() { return AmazonDynamoDBClientBuilder.standard() .withCredentials(getCredentialsProvider()) .withRegion(region) .build(); }
Example #23
Source File: DynamoDBMapperExample.java From aws-doc-sdk-examples with Apache License 2.0 | 5 votes |
public static void main(String[] args) throws IOException { // Set the AWS region you want to access. Regions usWest2 = Regions.US_WEST_2; client = AmazonDynamoDBClientBuilder.standard().withRegion(usWest2).build(); DimensionType dimType = new DimensionType(); dimType.setHeight("8.00"); dimType.setLength("11.0"); dimType.setThickness("1.0"); Book book = new Book(); book.setId(502); book.setTitle("Book 502"); book.setISBN("555-5555555555"); book.setBookAuthors(new HashSet<String>(Arrays.asList("Author1", "Author2"))); book.setDimensions(dimType); DynamoDBMapper mapper = new DynamoDBMapper(client); mapper.save(book); Book bookRetrieved = mapper.load(Book.class, 502); System.out.println("Book info: " + "\n" + bookRetrieved); bookRetrieved.getDimensions().setHeight("9.0"); bookRetrieved.getDimensions().setLength("12.0"); bookRetrieved.getDimensions().setThickness("2.0"); mapper.save(bookRetrieved); bookRetrieved = mapper.load(Book.class, 502); System.out.println("Updated book info: " + "\n" + bookRetrieved); }
Example #24
Source File: MoviesItemOps02.java From aws-doc-sdk-examples with Apache License 2.0 | 5 votes |
public static void main(String[] args) throws Exception { AmazonDynamoDB client = AmazonDynamoDBClientBuilder.standard() .withEndpointConfiguration(new AwsClientBuilder.EndpointConfiguration("http://localhost:8000", "us-west-2")) .build(); DynamoDB dynamoDB = new DynamoDB(client); Table table = dynamoDB.getTable("Movies"); int year = 2015; String title = "The Big New Movie"; GetItemSpec spec = new GetItemSpec().withPrimaryKey("year", year, "title", title); try { System.out.println("Attempting to read the item..."); Item outcome = table.getItem(spec); System.out.println("GetItem succeeded: " + outcome); } catch (Exception e) { System.err.println("Unable to read item: " + year + " " + title); System.err.println(e.getMessage()); } }
Example #25
Source File: MoviesItemOps05.java From aws-doc-sdk-examples with Apache License 2.0 | 5 votes |
public static void main(String[] args) throws Exception { AmazonDynamoDB client = AmazonDynamoDBClientBuilder.standard() .withEndpointConfiguration(new AwsClientBuilder.EndpointConfiguration("http://localhost:8000", "us-west-2")) .build(); DynamoDB dynamoDB = new DynamoDB(client); Table table = dynamoDB.getTable("Movies"); int year = 2015; String title = "The Big New Movie"; UpdateItemSpec updateItemSpec = new UpdateItemSpec() .withPrimaryKey(new PrimaryKey("year", year, "title", title)).withUpdateExpression("remove info.actors[0]") .withConditionExpression("size(info.actors) > :num").withValueMap(new ValueMap().withNumber(":num", 3)) .withReturnValues(ReturnValue.UPDATED_NEW); // Conditional update (we expect this to fail) try { System.out.println("Attempting a conditional update..."); UpdateItemOutcome outcome = table.updateItem(updateItemSpec); System.out.println("UpdateItem succeeded:\n" + outcome.getItem().toJSONPretty()); } catch (Exception e) { System.err.println("Unable to update item: " + year + " " + title); System.err.println(e.getMessage()); } }
Example #26
Source File: MoviesItemOps04.java From aws-doc-sdk-examples with Apache License 2.0 | 5 votes |
public static void main(String[] args) throws Exception { AmazonDynamoDB client = AmazonDynamoDBClientBuilder.standard() .withEndpointConfiguration(new AwsClientBuilder.EndpointConfiguration("http://localhost:8000", "us-west-2")) .build(); DynamoDB dynamoDB = new DynamoDB(client); Table table = dynamoDB.getTable("Movies"); int year = 2015; String title = "The Big New Movie"; UpdateItemSpec updateItemSpec = new UpdateItemSpec().withPrimaryKey("year", year, "title", title) .withUpdateExpression("set info.rating = info.rating + :val") .withValueMap(new ValueMap().withNumber(":val", 1)).withReturnValues(ReturnValue.UPDATED_NEW); try { System.out.println("Incrementing an atomic counter..."); UpdateItemOutcome outcome = table.updateItem(updateItemSpec); System.out.println("UpdateItem succeeded:\n" + outcome.getItem().toJSONPretty()); } catch (Exception e) { System.err.println("Unable to update item: " + year + " " + title); System.err.println(e.getMessage()); } }
Example #27
Source File: MoviesItemOps03.java From aws-doc-sdk-examples with Apache License 2.0 | 5 votes |
public static void main(String[] args) throws Exception { AmazonDynamoDB client = AmazonDynamoDBClientBuilder.standard() .withEndpointConfiguration(new AwsClientBuilder.EndpointConfiguration("http://localhost:8000", "us-west-2")) .build(); DynamoDB dynamoDB = new DynamoDB(client); Table table = dynamoDB.getTable("Movies"); int year = 2015; String title = "The Big New Movie"; UpdateItemSpec updateItemSpec = new UpdateItemSpec().withPrimaryKey("year", year, "title", title) .withUpdateExpression("set info.rating = :r, info.plot=:p, info.actors=:a") .withValueMap(new ValueMap().withNumber(":r", 5.5).withString(":p", "Everything happens all at once.") .withList(":a", Arrays.asList("Larry", "Moe", "Curly"))) .withReturnValues(ReturnValue.UPDATED_NEW); try { System.out.println("Updating the item..."); UpdateItemOutcome outcome = table.updateItem(updateItemSpec); System.out.println("UpdateItem succeeded:\n" + outcome.getItem().toJSONPretty()); } catch (Exception e) { System.err.println("Unable to update item: " + year + " " + title); System.err.println(e.getMessage()); } }
Example #28
Source File: MoviesItemOps06.java From aws-doc-sdk-examples with Apache License 2.0 | 5 votes |
public static void main(String[] args) throws Exception { AmazonDynamoDB client = AmazonDynamoDBClientBuilder.standard() .withEndpointConfiguration(new AwsClientBuilder.EndpointConfiguration("http://localhost:8000", "us-west-2")) .build(); DynamoDB dynamoDB = new DynamoDB(client); Table table = dynamoDB.getTable("Movies"); int year = 2015; String title = "The Big New Movie"; DeleteItemSpec deleteItemSpec = new DeleteItemSpec() .withPrimaryKey(new PrimaryKey("year", year, "title", title)).withConditionExpression("info.rating <= :val") .withValueMap(new ValueMap().withNumber(":val", 5.0)); // Conditional delete (we expect this to fail) try { System.out.println("Attempting a conditional delete..."); table.deleteItem(deleteItemSpec); System.out.println("DeleteItem succeeded"); } catch (Exception e) { System.err.println("Unable to delete item: " + year + " " + title); System.err.println(e.getMessage()); } }
Example #29
Source File: MoviesScan.java From aws-doc-sdk-examples with Apache License 2.0 | 5 votes |
public static void main(String[] args) throws Exception { AmazonDynamoDB client = AmazonDynamoDBClientBuilder.standard() .withEndpointConfiguration(new AwsClientBuilder.EndpointConfiguration("http://localhost:8000", "us-west-2")) .build(); DynamoDB dynamoDB = new DynamoDB(client); Table table = dynamoDB.getTable("Movies"); ScanSpec scanSpec = new ScanSpec().withProjectionExpression("#yr, title, info.rating") .withFilterExpression("#yr between :start_yr and :end_yr").withNameMap(new NameMap().with("#yr", "year")) .withValueMap(new ValueMap().withNumber(":start_yr", 1950).withNumber(":end_yr", 1959)); try { ItemCollection<ScanOutcome> items = table.scan(scanSpec); Iterator<Item> iter = items.iterator(); while (iter.hasNext()) { Item item = iter.next(); System.out.println(item.toString()); } } catch (Exception e) { System.err.println("Unable to scan the table:"); System.err.println(e.getMessage()); } }
Example #30
Source File: MoviesItemOps01.java From aws-doc-sdk-examples with Apache License 2.0 | 5 votes |
public static void main(String[] args) throws Exception { AmazonDynamoDB client = AmazonDynamoDBClientBuilder.standard() .withEndpointConfiguration(new AwsClientBuilder.EndpointConfiguration("http://localhost:8000", "us-west-2")) .build(); DynamoDB dynamoDB = new DynamoDB(client); Table table = dynamoDB.getTable("Movies"); int year = 2015; String title = "The Big New Movie"; final Map<String, Object> infoMap = new HashMap<String, Object>(); infoMap.put("plot", "Nothing happens at all."); infoMap.put("rating", 0); try { System.out.println("Adding a new item..."); PutItemOutcome outcome = table .putItem(new Item().withPrimaryKey("year", year, "title", title).withMap("info", infoMap)); System.out.println("PutItem succeeded:\n" + outcome.getPutItemResult()); } catch (Exception e) { System.err.println("Unable to add item: " + year + " " + title); System.err.println(e.getMessage()); } }