Github user delding commented on a diff in the pull request:
https://github.com/apache/flink/pull/2332#discussion_r73939778
--- Diff:
flink-streaming-connectors/flink-connector-hbase/src/main/java/org/apache/flink/streaming/connectors/hbase/HBaseSink.java
---
@@ -0,0 +1,100 @@
+/*
+ * 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.streaming.connectors.hbase;
+
+import com.google.common.base.Strings;
+import com.google.common.collect.Lists;
+import org.apache.flink.configuration.Configuration;
+import org.apache.flink.streaming.api.functions.sink.RichSinkFunction;
+import org.apache.flink.util.Preconditions;
+import org.apache.hadoop.hbase.HBaseConfiguration;
+import org.apache.hadoop.hbase.client.Durability;
+import org.apache.hadoop.hbase.client.Increment;
+import org.apache.hadoop.hbase.client.Mutation;
+import org.apache.hadoop.hbase.client.Put;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.util.List;
+
+public class HBaseSink<IN> extends RichSinkFunction<IN> {
+ private static final long serialVersionUID = 1L;
+
+ private static final Logger LOG =
LoggerFactory.getLogger(HBaseSink.class);
+
+ private transient HBaseClient client;
+ private String tableName;
+ private HBaseMapper<IN> mapper;
+ private boolean writeToWAL = true;
+
+ public HBaseSink(String tableName, HBaseMapper<IN> mapper) {
+ Preconditions.checkArgument(!Strings.isNullOrEmpty(tableName),
"Table name cannot be null or empty");
+ Preconditions.checkArgument(mapper != null, "HBase mapper
cannot be null");
+ this.tableName = tableName;
+ this.mapper = mapper;
+ }
+
+ public HBaseSink writeToWAL(boolean writeToWAL) {
+ this.writeToWAL = writeToWAL;
+ return this;
+ }
+
+ @Override
+ public void open(Configuration configuration) throws Exception {
+ try {
+ // use config files found in the classpath
+ client = new HBaseClient(HBaseConfiguration.create(),
tableName);
+ } catch (IOException e) {
+ throw new RuntimeException("HBase sink preparation
failed.", e);
+ }
+ }
+
+ @Override
+ public void invoke(IN value) throws Exception {
+ byte[] rowKey = mapper.rowKey(value);
+ List<Mutation> mutations = Lists.newArrayList();
+ for (HBaseMapper.HBaseColumn column : mapper.columns(value)) {
+ Mutation mutation;
+ if (column.isStandard()) {
--- End diff --
Thanks for these helpful comments :-)
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