// Path: src/main/java/org/trend/hgraph/HBaseGraphConstants.java
// public class HBaseGraphConstants {
//   
//   public static final String HBASE_GRAPH_TABLE_VERTEX_NAME_KEY = "hbase.graph.table.vertex.name";
//   
//   public static final String HBASE_GRAPH_TABLE_EDGE_NAME_KEY = "hbase.graph.table.edge.name";
//   
//   public static final String HBASE_GRAPH_TABLE_COLFAM_PROPERTY_NAME = "property";
//   
//   public static final String HBASE_GRAPH_TABLE_COLFAM_PROPERTY_NAME_DELIMITER = "@";
// 
//   public static final String HBASE_GRAPH_TABLE_EDGE_DELIMITER_1 = "-->";
// 
//   public static final String HBASE_GRAPH_TABLE_EDGE_DELIMITER_2 = "-->";
// }


import java.io.IOException;
import org.apache.commons.lang.Validate;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.conf.Configured;
import org.apache.hadoop.fs.Path;
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;
import org.apache.hadoop.io.DoubleWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.Mapper;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.lib.input.SequenceFileInputFormat;
import org.apache.hadoop.mapreduce.lib.output.NullOutputFormat;
import org.apache.hadoop.util.Tool;
import org.apache.hadoop.util.ToolRunner;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.trend.hgraph.HBaseGraphConstants;
/**
 * 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.trend.hgraph.mapreduce.pagerank;



/**
 * Import pageRanks from <code>SeuquenceFile</code> into HBase. 
 * By key => rowKey, value => pageRank.
 * @author scott_miao
 */
public class ImportPageRanks extends Configured implements Tool {

  private static Logger LOGGER = LoggerFactory.getLogger(ImportPageRanks.class);

  private static class ImportPageRanksMapper extends
      Mapper<Text, DoubleWritable, Text, DoubleWritable> {

    private HTable vertexTable;

    /*
     * (non-Javadoc)
     * @see org.apache.hadoop.mapreduce.Mapper#map(java.lang.Object, java.lang.Object,
     * org.apache.hadoop.mapreduce.Mapper.Context)
     */
    @Override
    protected void map(Text key, DoubleWritable value, Context context)
        throws IOException, InterruptedException {
      Put put = null;
      String rowKey = Bytes.toString(key.getBytes()).trim();
      try {
        put = new Put(Bytes.toBytes(rowKey));
        // set rank value
        put.add(
// Path: src/main/java/org/trend/hgraph/HBaseGraphConstants.java
// public class HBaseGraphConstants {
//   
//   public static final String HBASE_GRAPH_TABLE_VERTEX_NAME_KEY = "hbase.graph.table.vertex.name";
//   
//   public static final String HBASE_GRAPH_TABLE_EDGE_NAME_KEY = "hbase.graph.table.edge.name";
//   
//   public static final String HBASE_GRAPH_TABLE_COLFAM_PROPERTY_NAME = "property";
//   
//   public static final String HBASE_GRAPH_TABLE_COLFAM_PROPERTY_NAME_DELIMITER = "@";
// 
//   public static final String HBASE_GRAPH_TABLE_EDGE_DELIMITER_1 = "-->";
// 
//   public static final String HBASE_GRAPH_TABLE_EDGE_DELIMITER_2 = "-->";
// }


// Path: src/main/java/org/trend/hgraph/mapreduce/pagerank/ImportPageRanks.java
import java.io.IOException;
import org.apache.commons.lang.Validate;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.conf.Configured;
import org.apache.hadoop.fs.Path;
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;
import org.apache.hadoop.io.DoubleWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.Mapper;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.lib.input.SequenceFileInputFormat;
import org.apache.hadoop.mapreduce.lib.output.NullOutputFormat;
import org.apache.hadoop.util.Tool;
import org.apache.hadoop.util.ToolRunner;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.trend.hgraph.HBaseGraphConstants;

/**
 * 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.trend.hgraph.mapreduce.pagerank;



/**
 * Import pageRanks from <code>SeuquenceFile</code> into HBase. 
 * By key => rowKey, value => pageRank.
 * @author scott_miao
 */
public class ImportPageRanks extends Configured implements Tool {

  private static Logger LOGGER = LoggerFactory.getLogger(ImportPageRanks.class);

  private static class ImportPageRanksMapper extends
      Mapper<Text, DoubleWritable, Text, DoubleWritable> {

    private HTable vertexTable;

    /*
     * (non-Javadoc)
     * @see org.apache.hadoop.mapreduce.Mapper#map(java.lang.Object, java.lang.Object,
     * org.apache.hadoop.mapreduce.Mapper.Context)
     */
    @Override
    protected void map(Text key, DoubleWritable value, Context context)
        throws IOException, InterruptedException {
      Put put = null;
      String rowKey = Bytes.toString(key.getBytes()).trim();
      try {
        put = new Put(Bytes.toBytes(rowKey));
        // set rank value
        put.add(
          Bytes.toBytes(HBaseGraphConstants.HBASE_GRAPH_TABLE_COLFAM_PROPERTY_NAME),