Examples with ClusterDaxAsyncClient com.amazon.dax.client.dynamodbv2.ClusterDaxAsyncClient used on opensource projects

Example 1 with ClusterDaxAsyncClient

use of com.amazon.dax.client.dynamodbv2.ClusterDaxAsyncClient in project aws-doc-sdk-examples by awsdocs.

the class DaxAsyncClientDemo method main.

public static void main(String[] args) throws Exception {
    ClientConfig daxConfig = new ClientConfig().withCredentialsProvider(new ProfileCredentialsProvider()).withEndpoints("mydaxcluster.2cmrwl.clustercfg.dax.use1.cache.amazonaws.com:8111");
    AmazonDynamoDBAsync client = new ClusterDaxAsyncClient(daxConfig);
    HashMap<String, AttributeValue> key = new HashMap<String, AttributeValue>();
    key.put("Artist", new AttributeValue().withS("No One You Know"));
    key.put("SongTitle", new AttributeValue().withS("Scared of My Shadow"));
    GetItemRequest request = new GetItemRequest().withTableName("Music").withKey(key);
    // Java Futures
    Future<GetItemResult> call = client.getItemAsync(request);
    while (!call.isDone()) {
        // Do other processing while you're waiting for the response
        System.out.println("Doing something else for a few seconds...");
        Thread.sleep(3000);
    }
    try {
        call.get();
    } catch (ExecutionException ee) {
        // Futures always wrap errors as an ExecutionException.
        // The *real* exception is stored as the cause of the
        // ExecutionException
        Throwable exception = ee.getCause();
        System.out.println("Error getting item: " + exception.getMessage());
    }
    // Async callbacks
    call = client.getItemAsync(request, new AsyncHandler<GetItemRequest, GetItemResult>() {

        @Override
        public void onSuccess(GetItemRequest request, GetItemResult getItemResult) {
            System.out.println("Result: " + getItemResult);
        }

        @Override
        public void onError(Exception e) {
            System.out.println("Unable to read item");
            System.err.println(e.getMessage());
        // Callers can also test if exception is an instance of
        // AmazonServiceException or AmazonClientException and cast
        // it to get additional information
        }
    });
    call.get();
}