Adding HBase raw taps and source, bumping needed dependency versions, bumping scala version

2 files changed, 597 insertions, 0 deletions

diff --git a/src/main/java/parallelai/spyglass/hbase/HBaseRawScheme.java b/src/main/java/parallelai/spyglass/hbase/HBaseRawScheme.java
new file mode 100644
index 0000000..32730d6
--- /dev/null
+++ b/src/main/java/parallelai/spyglass/hbase/HBaseRawScheme.java
@@ -0,0 +1,286 @@
+/*
+ * 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.Arrays;
+import java.util.HashSet;
+
+import org.apache.hadoop.hbase.client.Put;
+import org.apache.hadoop.hbase.client.Result;
+import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
+import org.apache.hadoop.hbase.mapred.TableOutputFormat;
+import org.apache.hadoop.hbase.util.Bytes;
+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 com.twitter.elephantbird.mapred.input.DeprecatedInputFormatValueCopier;
+import com.twitter.elephantbird.mapred.input.DeprecatedInputFormatWrapper;
+
+import cascading.flow.FlowProcess;
+import cascading.scheme.Scheme;
+import cascading.scheme.SinkCall;
+import cascading.scheme.SourceCall;
+import cascading.tap.Tap;
+import cascading.tuple.Fields;
+import cascading.tuple.Tuple;
+import cascading.tuple.TupleEntry;
+import cascading.util.Util;
+
+/**
+ * The HBaseRawScheme class is a {@link Scheme} subclass. It is used in conjunction
+ * with the {@HBaseRawTap} to allow for the reading and writing of data
+ * to and from a HBase cluster.
+ * 
+ * @see HBaseRawTap
+ */
+@SuppressWarnings({ "rawtypes", "deprecation" })
+public class HBaseRawScheme extends Scheme<JobConf, RecordReader, OutputCollector, Object[], Object[]> {
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = 6248976486883281356L;
+
+	/** Field LOG */
+	private static final Logger LOG = LoggerFactory.getLogger(HBaseRawScheme.class);
+
+	public final Fields RowKeyField = new Fields("rowkey");
+	public final Fields RowField = new Fields("row");
+
+	/** String familyNames */
+	private String[] familyNames;
+
+	private boolean writeNulls = true;
+
+	/**
+	 * Constructor HBaseScheme creates a new HBaseScheme instance.
+	 * 
+	 * @param keyFields
+	 *            of type Fields
+	 * @param familyName
+	 *            of type String
+	 * @param valueFields
+	 *            of type Fields
+	 */
+	public HBaseRawScheme(String familyName) {
+		this(new String[] { familyName });
+	}
+
+	public HBaseRawScheme(String[] familyNames) {
+		this.familyNames = familyNames;
+		setSourceFields();
+	}
+
+	public HBaseRawScheme(String familyName, boolean writeNulls) {
+		this(new String[] { familyName }, writeNulls);
+	}
+
+	public HBaseRawScheme(String[] familyNames, boolean writeNulls) {
+		this.familyNames = familyNames;
+		this.writeNulls = writeNulls;
+		setSourceFields();
+	}
+
+	private void setSourceFields() {
+		Fields sourceFields = Fields.join(RowKeyField, RowField);
+		setSourceFields(sourceFields);
+	}
+
+	/**
+	 * Method getFamilyNames returns the set of familyNames of this HBaseScheme
+	 * object.
+	 * 
+	 * @return the familyNames (type String[]) of this HBaseScheme object.
+	 */
+	public String[] getFamilyNames() {
+		HashSet<String> familyNameSet = new HashSet<String>();
+		if (familyNames != null) {
+			for (String familyName : familyNames) {
+				familyNameSet.add(familyName);
+			}
+		}
+		return familyNameSet.toArray(new String[0]);
+	}
+
+	@Override
+	public void sourcePrepare(FlowProcess<JobConf> flowProcess, SourceCall<Object[], RecordReader> sourceCall) {
+		Object[] pair = new Object[] { sourceCall.getInput().createKey(), sourceCall.getInput().createValue() };
+
+		sourceCall.setContext(pair);
+	}
+
+	@Override
+	public void sourceCleanup(FlowProcess<JobConf> flowProcess, SourceCall<Object[], RecordReader> sourceCall) {
+		sourceCall.setContext(null);
+	}
+
+	@SuppressWarnings("unchecked")
+	@Override
+	public boolean source(FlowProcess<JobConf> flowProcess, SourceCall<Object[], RecordReader> sourceCall)
+			throws IOException {
+		Tuple result = new Tuple();
+
+		Object key = sourceCall.getContext()[0];
+		Object value = sourceCall.getContext()[1];
+		boolean hasNext = sourceCall.getInput().next(key, value);
+		if (!hasNext) {
+			return false;
+		}
+
+		// Skip nulls
+		if (key == null || value == null) {
+			return true;
+		}
+
+		ImmutableBytesWritable keyWritable = (ImmutableBytesWritable) key;
+		Result row = (Result) value;
+		result.add(keyWritable);
+		result.add(row);
+		sourceCall.getIncomingEntry().setTuple(result);
+		return true;
+	}
+
+	@SuppressWarnings("unchecked")
+	@Override
+	public void sink(FlowProcess<JobConf> flowProcess, SinkCall<Object[], OutputCollector> sinkCall) throws IOException {
+		TupleEntry tupleEntry = sinkCall.getOutgoingEntry();
+		OutputCollector outputCollector = sinkCall.getOutput();
+		Tuple key = tupleEntry.selectTuple(RowKeyField);
+		Object okey = key.getObject(0);
+		ImmutableBytesWritable keyBytes = getBytes(okey);
+		Put put = new Put(keyBytes.get());
+		Fields outFields = tupleEntry.getFields().subtract(RowKeyField);
+		if (null != outFields) {
+			TupleEntry values = tupleEntry.selectEntry(outFields);
+			for (int n = 0; n < values.getFields().size(); n++) {
+				Object o = values.get(n);
+				ImmutableBytesWritable valueBytes = getBytes(o);
+				Comparable field = outFields.get(n);
+				ColumnName cn = parseColumn((String) field);
+				if (null == cn.family) {
+					if (n >= familyNames.length)
+						cn.family = familyNames[familyNames.length - 1];
+					else
+						cn.family = familyNames[n];
+				}
+				if (null != o || writeNulls)
+					put.add(Bytes.toBytes(cn.family), Bytes.toBytes(cn.name), valueBytes.get());
+			}
+		}
+		outputCollector.collect(null, put);
+	}
+
+	private ImmutableBytesWritable getBytes(Object obj) {
+		if (null == obj)
+			return new ImmutableBytesWritable(new byte[0]);
+		if (obj instanceof ImmutableBytesWritable)
+			return (ImmutableBytesWritable) obj;
+		else if (obj instanceof String)
+			return new ImmutableBytesWritable(Bytes.toBytes((String) obj));
+		else if (obj instanceof Long)
+			return new ImmutableBytesWritable(Bytes.toBytes((Long) obj));
+		else if (obj instanceof Integer)
+			return new ImmutableBytesWritable(Bytes.toBytes((Integer) obj));
+		else if (obj instanceof Short)
+			return new ImmutableBytesWritable(Bytes.toBytes((Short) obj));
+		else if (obj instanceof Boolean)
+			return new ImmutableBytesWritable(Bytes.toBytes((Boolean) obj));
+		else if (obj instanceof Double)
+			return new ImmutableBytesWritable(Bytes.toBytes((Double) obj));
+		else
+			throw new IllegalArgumentException("cannot convert object to ImmutableBytesWritable, class="
+					+ obj.getClass().getName());
+	}
+
+	private ColumnName parseColumn(String column) {
+		ColumnName ret = new ColumnName();
+		int pos = column.indexOf(":");
+		if (pos > 0) {
+			ret.name = column.substring(pos + 1);
+			ret.family = column.substring(0, pos);
+		} else {
+			ret.name = column;
+		}
+		return ret;
+	}
+
+	private class ColumnName {
+		String family;
+		String name;
+
+		ColumnName() {
+		}
+	}
+
+	@Override
+	public void sinkConfInit(FlowProcess<JobConf> process, Tap<JobConf, RecordReader, OutputCollector> tap, JobConf conf) {
+		conf.setOutputFormat(TableOutputFormat.class);
+		conf.setOutputKeyClass(ImmutableBytesWritable.class);
+		conf.setOutputValueClass(Put.class);
+	}
+
+	@Override
+	public void sourceConfInit(FlowProcess<JobConf> process, Tap<JobConf, RecordReader, OutputCollector> tap,
+			JobConf conf) {
+		DeprecatedInputFormatWrapper.setInputFormat(org.apache.hadoop.hbase.mapreduce.TableInputFormat.class, conf,
+				ValueCopier.class);
+		if (null != familyNames) {
+			String columns = Util.join(this.familyNames, " ");
+			LOG.debug("sourcing from column families: {}", columns);
+			conf.set(org.apache.hadoop.hbase.mapreduce.TableInputFormat.SCAN_COLUMNS, columns);
+		}
+	}
+
+	@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;
+		}
+
+		HBaseRawScheme that = (HBaseRawScheme) object;
+
+		if (!Arrays.equals(familyNames, that.familyNames)) {
+			return false;
+		}
+		return true;
+	}
+
+	@Override
+	public int hashCode() {
+		int result = super.hashCode();
+		result = 31 * result + (familyNames != null ? Arrays.hashCode(familyNames) : 0);
+		return result;
+	}
+
+	public static class ValueCopier implements DeprecatedInputFormatValueCopier<Result> {
+
+		public ValueCopier() {
+		}
+
+		public void copyValue(Result oldValue, Result newValue) {
+			if (null != oldValue && null != newValue) {
+				oldValue.copyFrom(newValue);
+			}
+		}
+
+	}
+}
diff --git a/src/main/java/parallelai/spyglass/hbase/HBaseRawTap.java b/src/main/java/parallelai/spyglass/hbase/HBaseRawTap.java
new file mode 100644
index 0000000..738fd51
--- /dev/null
+++ b/src/main/java/parallelai/spyglass/hbase/HBaseRawTap.java
@@ -0,0 +1,311 @@
+/*
+ * 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
+	 * @param tableName
+	 * @param HBaseFullScheme
+	 * @param base64Scan
+	 * @param sinkMode
+	 */
+	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;
+	}
+}