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From HilmiYildirim <...@git.apache.org>
Subject [GitHub] flink pull request: From stream to Hbase
Date Tue, 26 May 2015 06:37:10 GMT
Github user HilmiYildirim commented on a diff in the pull request:

    https://github.com/apache/flink/pull/706#discussion_r31007499
  
    --- Diff: flink-staging/flink-hbase/src/test/java/org/apache/flink/addons/hbase/example/HBaseWriteStreamExample.java
---
    @@ -0,0 +1,114 @@
    +/*
    + * 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 org.apache.flink.addons.hbase.example;
    +
    +import java.io.IOException;
    +
    +import org.apache.flink.api.common.io.OutputFormat;
    +import org.apache.flink.configuration.Configuration;
    +import org.apache.flink.streaming.api.datastream.DataStream;
    +import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
    +import org.apache.flink.streaming.api.functions.source.SourceFunction;
    +import org.apache.flink.util.Collector;
    +import org.apache.hadoop.hbase.HBaseConfiguration;
    +import org.apache.hadoop.hbase.client.HTable;
    +import org.apache.hadoop.hbase.client.Put;
    +import org.apache.hadoop.hbase.util.Bytes;
    +
    +/**
    + * 
    + * This is an example how to write streams into HBase. In this example the
    + * stream will be written into a local Hbase but it is possible to adapt this
    + * example for an HBase running in a cloud. You need a running local HBase with a
    + * table "flinkExample" and a column "entry". If your HBase configuration does
    + * not fit the hbase-site.xml in the resource folder then you gave to delete temporary
this
    + * hbase-site.xml to execute the example properly.
    + * 
    + */
    +public class HBaseWriteStreamExample {
    +
    +	public static void main(String[] args) {
    +		final StreamExecutionEnvironment env = StreamExecutionEnvironment
    +				.getExecutionEnvironment();
    +
    +		// data stream with random numbers
    +		DataStream<String> dataStream = env.addSource(new SourceFunction<String>()
{
    +
    +			@Override
    +			public boolean reachedEnd() throws Exception {
    +				return false;
    +			}
    +
    +			@Override
    +			public String next() throws Exception {
    +				return 	String.valueOf(Math.floor(Math.random() * 100));
    +			}
    +
    +		});
    +		dataStream.write(new HBaseOutputFormat(), 0L);
    +
    +		try {
    +			env.execute();
    +		} catch (Exception e) {
    --- End diff --
    
    Great


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