Java tutorial
/** * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License 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 instamo; import java.io.File; import java.util.HashMap; import java.util.Map.Entry; import java.util.UUID; import org.apache.accumulo.core.Constants; import org.apache.accumulo.core.client.BatchWriter; import org.apache.accumulo.core.client.Connector; import org.apache.accumulo.core.client.Instance; import org.apache.accumulo.core.client.Scanner; import org.apache.accumulo.core.client.ZooKeeperInstance; import org.apache.accumulo.core.data.Key; import org.apache.accumulo.core.data.Mutation; import org.apache.accumulo.core.data.Value; import org.apache.commons.io.FileUtils; public class AccumuloApp { public static void run(String instanceName, String zookeepers, String rootPassword, String args[]) throws Exception { // edit this method to play with Accumulo Instance instance = new ZooKeeperInstance(instanceName, zookeepers); Connector conn = instance.getConnector("root", rootPassword); conn.tableOperations().create("foo"); BatchWriter bw = conn.createBatchWriter("foo", 50000000, 60000l, 3); Mutation m = new Mutation("r1"); m.put("cf1", "cq1", "v1"); m.put("cf1", "cq2", "v3"); bw.addMutation(m); bw.close(); Scanner scanner = conn.createScanner("foo", Constants.NO_AUTHS); for (Entry<Key, Value> entry : scanner) { System.out.println(entry.getKey() + " " + entry.getValue()); } } public static void main(String[] args) throws Exception { File tmpDir = new File(FileUtils.getTempDirectory(), "macc-" + UUID.randomUUID().toString()); try { MiniAccumuloCluster la = new MiniAccumuloCluster(tmpDir, "pass1234", new HashMap<String, String>()); la.start(); System.out.println("\n ---- Running Accumulo App against accumulo-" + la.getAccumuloVersion() + "\n"); run(la.getInstanceName(), la.getZookeepers(), "pass1234", args); System.out.println("\n ---- Ran Accumulo App\n"); la.stop(); } finally { FileUtils.deleteQuietly(tmpDir); } } }