Java

This document describes how to use Java SDK for Rockset. This client allows you to:

securely connect to Rockset service
create, manage and administer collections
issue queries against collections

Check out the JavaDocs.

Installation

Add this Maven dependency to your project's POM:

<dependency>
    <groupId>com.rockset</groupId>
    <artifactId>rockset-java</artifactId>
    <version>0.6.1</version>
</dependency>

or create a jar file rockset-java-${version}.jar

mvn package

Connect

Client objects allow you to connect securely to Rockset service. All other API calls require a valid client object.

In order to create a client object, you will need a valid Rockset API key. If you have access to the Rockset Console, then you can use the console to create an API key. If not, please contact the Rockset team at [email protected]

import com.rockset.client.RocksetClient;

RocksetClient client = new RocksetClient("<apiKey>", "<apiServer>");

Find the apiServer for your region here.

Usage

Create a Collection

Create a collection using the client object as follows:

CreateCollectionRequest request = new CreateCollectionRequest()
                                    .name("my-first-collection");
CreateCollectionResponse response = client.createCollection("commons", request);

Create an Integration

If you have an Amazon S3 bucket that you want to ingest data from, create a Rockset Integration to store credentials required to access the bucket. Create an integration object using the client object as follows:

CreateIntegrationRequest request = new CreateIntegrationRequest()
                                    .name("my-first-integration")
                                    .aws(new AwsKeyIntegration()
                                        .awsAccessKeyId(".....")
                                        .awsSecretAccessKey("....."));
CreateIntegrationResponse response = client.createIntegration(request);

Create a Collection from Amazon S3

Prior to creating a collection using Amazon S3 as source, create an integration first.

SourceS3 sourceS3 = new SourceS3();
sourceS3.setBucket("<bucket>");
List<Source> sources = new ArrayList<Source>();
sources.add(new Source().s3(sourceS3).integrationName("<integration>"));
CreateCollectionRequest request = new CreateCollectionRequest()
                                    .name("my-first-s3-collection")
                                    .sources(sources);
CreateCollectionResponse response = client.createCollection("commons", request);

Add Documents

Add documents to an existing collection using the client object.

               // load json from a file or create a list of objects to be inserted
LinkedList <Object> list = new LinkedList<null>();
Map<String , Object> json = new LinkedHashMap<null>();
json.put("name", "foo");
json.put("address", "bar");
list.add(json);

AddDocumentsRequest documentsRequest =
     new AddDocumentsRequest().data(list);
AddDocumentsResponse documentsResponse =
     client.addDocuments("commons", "my-first-collection", documentsRequest);

Query

Make queries to Rockset using the client object.

QueryRequest request = new QueryRequest()
                            .sql(new QueryRequestSql()
                            .query("select * from \"_events\""));
QueryResponse response = client.query(request);

There are more Java examples available.