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///*
//* Copyright (c) 2009 Concurrent, Inc.
//*
//* This work has been released into the public domain
//* by the copyright holder. This applies worldwide.
//*
//* In case this is not legally possible:
//* The copyright holder grants any entity the right
//* to use this work for any purpose, without any
//* conditions, unless such conditions are required by law.
//*/
//
//package parallelai.spyglass.hbase;
//
//import java.io.IOException;
//import java.util.UUID;
//
//import org.apache.hadoop.conf.Configuration;
//import org.apache.hadoop.fs.Path;
//import org.apache.hadoop.hbase.HBaseConfiguration;
//import org.apache.hadoop.hbase.HColumnDescriptor;
//import org.apache.hadoop.hbase.HTableDescriptor;
//import org.apache.hadoop.hbase.MasterNotRunningException;
//import org.apache.hadoop.hbase.ZooKeeperConnectionException;
//import org.apache.hadoop.hbase.client.HBaseAdmin;
//import org.apache.hadoop.hbase.client.Scan;
//import org.apache.hadoop.hbase.mapreduce.TableOutputFormat;
//import org.apache.hadoop.mapred.FileInputFormat;
//import org.apache.hadoop.mapred.JobConf;
//import org.apache.hadoop.mapred.OutputCollector;
//import org.apache.hadoop.mapred.RecordReader;
//import org.slf4j.Logger;
//import org.slf4j.LoggerFactory;
//
//import cascading.flow.FlowProcess;
//import cascading.tap.SinkMode;
//import cascading.tap.Tap;
//import cascading.tap.hadoop.io.HadoopTupleEntrySchemeIterator;
//import cascading.tuple.TupleEntryCollector;
//import cascading.tuple.TupleEntryIterator;
//
//import org.apache.hadoop.hbase.mapreduce.TableInputFormat;
//
///**
//* The HBaseRawTap class is a {@link Tap} subclass. It is used in conjunction with
//* the {@HBaseRawScheme} to allow for the reading and writing
//* of data to and from a HBase cluster.
//*/
//@SuppressWarnings({ "deprecation", "rawtypes" })
//public class HBaseRawTap extends Tap<JobConf, RecordReader, OutputCollector> {
// /**
// *
// */
// private static final long serialVersionUID = 8019189493428493323L;
//
// /** Field LOG */
// private static final Logger LOG = LoggerFactory.getLogger(HBaseRawTap.class);
//
// private final String id = UUID.randomUUID().toString();
//
// /** Field SCHEME */
// public static final String SCHEME = "hbase";
//
// /** Field hBaseAdmin */
// private transient HBaseAdmin hBaseAdmin;
//
// /** Field hostName */
// private String quorumNames;
// /** Field tableName */
// private String tableName;
// private String base64Scan;
//
// /**
// * Constructor HBaseTap creates a new HBaseTap instance.
// *
// * @param tableName
// * of type String
// * @param HBaseFullScheme
// * of type HBaseFullScheme
// */
// public HBaseRawTap(String tableName, HBaseRawScheme HBaseFullScheme) {
// super(HBaseFullScheme, SinkMode.UPDATE);
// this.tableName = tableName;
// }
//
// /**
// * Constructor HBaseTap creates a new HBaseTap instance.
// *
// * @param tableName
// * of type String
// * @param HBaseFullScheme
// * of type HBaseFullScheme
// * @param sinkMode
// * of type SinkMode
// */
// public HBaseRawTap(String tableName, HBaseRawScheme HBaseFullScheme, SinkMode sinkMode) {
// super(HBaseFullScheme, sinkMode);
// this.tableName = tableName;
// }
//
// /**
// * Constructor HBaseTap creates a new HBaseTap instance.
// *
// * @param tableName
// * of type String
// * @param HBaseFullScheme
// * of type HBaseFullScheme
// */
// public HBaseRawTap(String quorumNames, String tableName, HBaseRawScheme HBaseFullScheme) {
// super(HBaseFullScheme, SinkMode.UPDATE);
// this.quorumNames = quorumNames;
// this.tableName = tableName;
// }
//
// /**
// * Constructor HBaseTap creates a new HBaseTap instance.
// *
// * @param tableName
// * of type String
// * @param HBaseFullScheme
// * of type HBaseFullScheme
// * @param sinkMode
// * of type SinkMode
// */
// public HBaseRawTap(String quorumNames, String tableName, HBaseRawScheme HBaseFullScheme, SinkMode sinkMode) {
// super(HBaseFullScheme, sinkMode);
// this.quorumNames = quorumNames;
// this.tableName = tableName;
// }
//
// /**
// * Constructor HBaseTap creates a new HBaseTap instance.
// *
// * @param quorumNames HBase quorum
// * @param tableName The name of the HBase table to read
// * @param HBaseFullScheme
// * @param base64Scan An optional base64 encoded scan object
// * @param sinkMode If REPLACE the output table will be deleted before writing to
// */
// public HBaseRawTap(String quorumNames, String tableName, HBaseRawScheme HBaseFullScheme, String base64Scan, SinkMode sinkMode) {
// super(HBaseFullScheme, sinkMode);
// this.quorumNames = quorumNames;
// this.tableName = tableName;
// this.base64Scan = base64Scan;
// }
//
// /**
// * Method getTableName returns the tableName of this HBaseTap object.
// *
// * @return the tableName (type String) of this HBaseTap object.
// */
// public String getTableName() {
// return tableName;
// }
//
// public Path getPath() {
// return new Path(SCHEME + ":/" + tableName.replaceAll(":", "_"));
// }
//
// protected HBaseAdmin getHBaseAdmin(JobConf conf) throws MasterNotRunningException, ZooKeeperConnectionException {
// if (hBaseAdmin == null) {
// Configuration hbaseConf = HBaseConfiguration.create(conf);
// hBaseAdmin = new HBaseAdmin(hbaseConf);
// }
//
// return hBaseAdmin;
// }
//
// @Override
// public void sinkConfInit(FlowProcess<JobConf> process, JobConf conf) {
// if (quorumNames != null) {
// conf.set("hbase.zookeeper.quorum", quorumNames);
// }
//
// LOG.debug("sinking to table: {}", tableName);
//
// if (isReplace() && conf.get("mapred.task.partition") == null) {
// try {
// deleteResource(conf);
//
// } catch (IOException e) {
// throw new RuntimeException("could not delete resource: " + e);
// }
// }
//
// else if (isUpdate() || isReplace()) {
// try {
// createResource(conf);
// } catch (IOException e) {
// throw new RuntimeException(tableName + " does not exist !", e);
// }
//
// }
//
// conf.set(TableOutputFormat.OUTPUT_TABLE, tableName);
// super.sinkConfInit(process, conf);
// }
//
// @Override
// public String getIdentifier() {
// return id;
// }
//
// @Override
// public TupleEntryIterator openForRead(FlowProcess<JobConf> jobConfFlowProcess, RecordReader recordReader)
// throws IOException {
// return new HadoopTupleEntrySchemeIterator(jobConfFlowProcess, this, recordReader);
// }
//
// @Override
// public TupleEntryCollector openForWrite(FlowProcess<JobConf> jobConfFlowProcess, OutputCollector outputCollector)
// throws IOException {
// HBaseTapCollector hBaseCollector = new HBaseTapCollector(jobConfFlowProcess, this);
// hBaseCollector.prepare();
// return hBaseCollector;
// }
//
// @Override
// public boolean createResource(JobConf jobConf) throws IOException {
// HBaseAdmin hBaseAdmin = getHBaseAdmin(jobConf);
//
// if (hBaseAdmin.tableExists(tableName)) {
// return true;
// }
//
// LOG.info("creating hbase table: {}", tableName);
//
// HTableDescriptor tableDescriptor = new HTableDescriptor(tableName);
//
// String[] familyNames = ((HBaseRawScheme) getScheme()).getFamilyNames();
//
// for (String familyName : familyNames) {
// tableDescriptor.addFamily(new HColumnDescriptor(familyName));
// }
//
// hBaseAdmin.createTable(tableDescriptor);
//
// return true;
// }
//
// @Override
// public boolean deleteResource(JobConf jobConf) throws IOException {
// if (getHBaseAdmin(jobConf).tableExists(tableName)) {
// if (getHBaseAdmin(jobConf).isTableEnabled(tableName))
// getHBaseAdmin(jobConf).disableTable(tableName);
// getHBaseAdmin(jobConf).deleteTable(tableName);
// }
// return true;
// }
//
// @Override
// public boolean resourceExists(JobConf jobConf) throws IOException {
// return getHBaseAdmin(jobConf).tableExists(tableName);
// }
//
// @Override
// public long getModifiedTime(JobConf jobConf) throws IOException {
// return System.currentTimeMillis(); // currently unable to find last mod
// // time
// // on a table
// }
//
// @Override
// public void sourceConfInit(FlowProcess<JobConf> process, JobConf conf) {
// // a hack for MultiInputFormat to see that there is a child format
// FileInputFormat.setInputPaths(conf, getPath());
//
// if (quorumNames != null) {
// conf.set("hbase.zookeeper.quorum", quorumNames);
// }
//
// LOG.debug("sourcing from table: {}", tableName);
// conf.set(TableInputFormat.INPUT_TABLE, tableName);
// if (null != base64Scan)
// conf.set(TableInputFormat.SCAN, base64Scan);
//
// super.sourceConfInit(process, conf);
// }
//
// @Override
// public boolean equals(Object object) {
// if (this == object) {
// return true;
// }
// if (object == null || getClass() != object.getClass()) {
// return false;
// }
// if (!super.equals(object)) {
// return false;
// }
//
// HBaseRawTap hBaseTap = (HBaseRawTap) object;
//
// if (tableName != null ? !tableName.equals(hBaseTap.tableName) : hBaseTap.tableName != null) {
// return false;
// }
//
// if (base64Scan != null ? !base64Scan.equals(hBaseTap.base64Scan) : hBaseTap.base64Scan != null) {
// return false;
// }
//
// return true;
// }
//
// @Override
// public int hashCode() {
// int result = super.hashCode();
// result = 31 * result + (tableName != null ? tableName.hashCode() : 0) + (base64Scan != null ? base64Scan.hashCode() : 0);
// return result;
// }
//}
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