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From h..@apache.org
Subject [22/55] [abbrv] [partial] incubator-eagle git commit: [EAGLE-46] Rename package name as "org.apache.eagle"
Date Thu, 19 Nov 2015 10:47:29 GMT
http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/afe86834/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/HBaseInternalLogHelper.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/HBaseInternalLogHelper.java b/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/HBaseInternalLogHelper.java
deleted file mode 100755
index 37e2218..0000000
--- a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/HBaseInternalLogHelper.java
+++ /dev/null
@@ -1,245 +0,0 @@
-/*
- * 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 eagle.log.entity;
-
-import eagle.log.base.taggedlog.TaggedLogAPIEntity;
-import eagle.log.entity.meta.*;
-import eagle.log.expression.ExpressionParser;
-import eagle.query.parser.TokenConstant;
-import eagle.common.ByteUtil;
-import eagle.common.EagleBase64Wrapper;
-import org.apache.hadoop.hbase.KeyValue;
-import org.apache.hadoop.hbase.client.Result;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.util.*;
-
-public class HBaseInternalLogHelper {
-	private final static Logger LOG  = LoggerFactory.getLogger(HBaseInternalLogHelper.class);
-
-	private static final EntitySerDeserializer ENTITY_SERDESER = new EntitySerDeserializer();
-
-	/**
-	 *
-	 * @param ed
-	 * @param r
-	 * @param qualifiers if null, return all qualifiers defined in ed
-	 * @return
-	 */
-	public static InternalLog parse(EntityDefinition ed, Result r, byte[][] qualifiers) {
-		final byte[] row = r.getRow();
-		// skip the first 4 bytes : prefix
-		final int offset = (ed.getPartitions() == null) ? (4) : (4 + ed.getPartitions().length * 4);
-		long timestamp = ByteUtil.bytesToLong(row, offset);
-		// reverse timestamp
-		timestamp = Long.MAX_VALUE - timestamp;
-		final byte[] family = ed.getColumnFamily().getBytes();
-		final Map<String, byte[]> allQualifierValues = new HashMap<String, byte[]>();
-
-		if (qualifiers != null) {
-			int count = qualifiers.length;
-			final byte[][] values = new byte[count][];
-			for (int i = 0; i < count; i++) {
-				// TODO if returned value is null, it means no this column for this row, so why set null to the object?
-				values[i] = r.getValue(family, qualifiers[i]);
-				allQualifierValues.put(new String(qualifiers[i]), values[i]);
-			}
-		}else{
-			// return all qualifiers
-			for(KeyValue kv:r.list()){
-				byte[] qualifier = kv.getQualifier();
-				byte[] value = kv.getValue();
-				allQualifierValues.put(new String(qualifier),value);
-			}
-		}
-		final InternalLog log = buildObject(ed, row, timestamp, allQualifierValues);
-		return log;
-	}
-
-	/**
-	 *
-	 * @param ed
-	 * @param row
-	 * @param timestamp
-	 * @param allQualifierValues <code>Map &lt; Qualifier name (not display name),Value in bytes array &gt;</code>
-	 * @return
-	 */
-	public static InternalLog buildObject(EntityDefinition ed, byte[] row, long timestamp, Map<String, byte[]> allQualifierValues) {
-		InternalLog log = new InternalLog();
-		String myRow = EagleBase64Wrapper.encodeByteArray2URLSafeString(row);
-		log.setEncodedRowkey(myRow);
-		log.setPrefix(ed.getPrefix());
-		log.setTimestamp(timestamp);
-
-		Map<String, byte[]> logQualifierValues = new HashMap<String, byte[]>();
-		Map<String, String> logTags = new HashMap<String, String>();
-		Map<String, Object> extra = null;
-
-		Map<String,Double> doubleMap = null;
-		// handle with metric
-		boolean isMetricEntity = GenericMetricEntity.GENERIC_METRIC_SERVICE.equals(ed.getService());
-		double[] metricValueArray = null;
-
-		for (Map.Entry<String, byte[]> entry : allQualifierValues.entrySet()) {
-			if (ed.isTag(entry.getKey())) {
-				if (entry.getValue() != null) {
-					logTags.put(entry.getKey(), new String(entry.getValue()));
-				}else if (TokenConstant.isExpression(entry.getKey())){
-					if(doubleMap == null) doubleMap = EntityQualifierUtils.bytesMapToDoubleMap(allQualifierValues, ed);
-					// Caculate expression based fields
-					String expression = TokenConstant.parseExpressionContent(entry.getKey());
-					if (extra == null) extra = new HashMap<String, Object>();
-
-					// Evaluation expression as output based on entity
-					// -----------------------------------------------
-					// 1) Firstly, check whether is metric entity and expression requires value and also value is not number (i.e. double[])
-					// 2) Treat all required fields as double, if not number, then set result as NaN
-
-					try {
-						ExpressionParser parser = ExpressionParser.parse(expression);
-						boolean isRequiringValue = parser.getDependentFields().contains(GenericMetricEntity.VALUE_FIELD);
-
-						if(isMetricEntity && isRequiringValue && doubleMap.get(GenericMetricEntity.VALUE_FIELD)!=null
-								&& Double.isNaN(doubleMap.get(GenericMetricEntity.VALUE_FIELD))) // EntityQualifierUtils will convert non-number field into Double.NaN
-						{
-							// if dependent fields require "value"
-							// and value exists but value's type is double[] instead of double
-
-							// handle with metric value array based expression
-							// lazily extract metric value as double array if required
-							if(metricValueArray == null){
-								// if(allQualifierValues.containsKey(GenericMetricEntity.VALUE_FIELD)){
-								Qualifier qualifier = ed.getDisplayNameMap().get(GenericMetricEntity.VALUE_FIELD);
-								EntitySerDeser serDeser = qualifier.getSerDeser();
-								if(serDeser instanceof DoubleArraySerDeser){
-									byte[] value = allQualifierValues.get(qualifier.getQualifierName());
-									if(value !=null ) metricValueArray = (double[]) serDeser.deserialize(value);
-								}
-								// }
-							}
-
-							if(metricValueArray!=null){
-								double[] resultBucket = new double[metricValueArray.length];
-								Map<String, Double> _doubleMap = new HashMap<String,Double>(doubleMap);
-								_doubleMap.remove(entry.getKey());
-								for(int i=0;i< resultBucket.length;i++) {
-									_doubleMap.put(GenericMetricEntity.VALUE_FIELD, metricValueArray[i]);
-									resultBucket[i]=  parser.eval(_doubleMap);
-								}
-								extra.put(expression,resultBucket);
-							}else{
-								LOG.warn("Failed convert metric value into double[] type which is required by expression: "+expression);
-								// if require value in double[] is NaN
-								double value = parser.eval(doubleMap);
-								extra.put(expression, value);
-							}
-						}else {
-							double value = parser.eval(doubleMap);
-							extra.put(expression, value);
-							// LOG.info("DEBUG: "+entry.getKey()+" = "+ value);
-						}
-					} catch (Exception e) {
-						LOG.error("Failed to eval expression "+expression+", exception: "+e.getMessage(),e);
-					}
-				}
-			} else {
-				logQualifierValues.put(entry.getKey(),entry.getValue());
-			}
-		}
-		log.setQualifierValues(logQualifierValues);
-		log.setTags(logTags);
-		log.setExtraValues(extra);
-		return log;
-	}
-	
-	public static TaggedLogAPIEntity buildEntity(InternalLog log, EntityDefinition entityDef) throws Exception {
-		Map<String, byte[]> qualifierValues = log.getQualifierValues();
-		TaggedLogAPIEntity entity = ENTITY_SERDESER.readValue(qualifierValues, entityDef);
-		if (entity.getTags() == null && log.getTags() != null) {
-			entity.setTags(log.getTags());
-		}
-		entity.setExp(log.getExtraValues());
-		entity.setTimestamp(log.getTimestamp());
-		entity.setEncodedRowkey(log.getEncodedRowkey());
-		entity.setPrefix(log.getPrefix());
-		return entity;
-	}
-	
-	public static List<TaggedLogAPIEntity> buildEntities(List<InternalLog> logs, EntityDefinition entityDef) throws Exception {
-		final List<TaggedLogAPIEntity> result = new ArrayList<TaggedLogAPIEntity>(logs.size());
-		for (InternalLog log : logs) {
-			result.add(buildEntity(log, entityDef));
-		}
-		return result;
-	}
-	
-	public static byte[][] getOutputQualifiers(EntityDefinition entityDef, List<String> outputFields) {
-		final byte[][] result = new byte[outputFields.size()][];
-		int index = 0;
-		for(String field : outputFields){
-			// convert displayName to qualifierName
-			Qualifier q = entityDef.getDisplayNameMap().get(field);
-			if(q == null){ // for tag case
-				result[index++] = field.getBytes();
-			}else{ // for qualifier case
-				result[index++] = q.getQualifierName().getBytes();
-			}
-		}
-		return result;
-	}
-
-	public static InternalLog convertToInternalLog(TaggedLogAPIEntity entity, EntityDefinition entityDef) throws Exception {
-		final InternalLog log = new InternalLog();
-		final Map<String, String> inputTags = entity.getTags();
-		final Map<String, String> tags = new TreeMap<String, String>();
-		if(inputTags!=null) {
-			for (Map.Entry<String, String> entry : inputTags.entrySet()) {
-				tags.put(entry.getKey(), entry.getValue());
-			}
-		}
-		log.setTags(tags);
-		if(entityDef.isTimeSeries()){
-			log.setTimestamp(entity.getTimestamp());
-		}else{
-			log.setTimestamp(EntityConstants.FIXED_WRITE_TIMESTAMP); // set timestamp to MAX, then actually stored 0
-		}
-		
-		// For Metric entity, prefix is populated along with entity instead of EntityDefinition
-		if(entity.getPrefix() != null && !entity.getPrefix().isEmpty()){
-			log.setPrefix(entity.getPrefix());
-		}else{
-			log.setPrefix(entityDef.getPrefix());
-		}
-		
-		log.setPartitions(entityDef.getPartitions());
-		EntitySerDeserializer des = new EntitySerDeserializer();
-		log.setQualifierValues(des.writeValue(entity, entityDef));
-		
-		final IndexDefinition[] indexDefs = entityDef.getIndexes();
-		if (indexDefs != null) {
-			final List<byte[]> indexRowkeys = new ArrayList<byte[]>();
-			for (int i = 0; i < indexDefs.length; ++i) {
-				final IndexDefinition indexDef = indexDefs[i];
-				final byte[] indexRowkey = indexDef.generateIndexRowkey(entity);
-				indexRowkeys.add(indexRowkey);
-			}
-			log.setIndexRowkeys(indexRowkeys);
-		}
-		return log;
-	}
-}

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/afe86834/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/HBaseLogReader2.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/HBaseLogReader2.java b/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/HBaseLogReader2.java
deleted file mode 100755
index 3edb7b1..0000000
--- a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/HBaseLogReader2.java
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * 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 eagle.log.entity;
-
-import eagle.log.entity.meta.EntityDefinition;
-import org.apache.hadoop.hbase.client.HTableInterface;
-import org.apache.hadoop.hbase.client.Result;
-import org.apache.hadoop.hbase.client.ResultScanner;
-import org.apache.hadoop.hbase.client.Scan;
-import org.apache.hadoop.hbase.filter.Filter;
-
-import java.io.IOException;
-import java.util.Date;
-import java.util.List;
-
-public class HBaseLogReader2 extends AbstractHBaseLogReader<InternalLog> {
-	protected ResultScanner rs;
-
-	public HBaseLogReader2(EntityDefinition ed, List<String> partitions, Date startTime, Date endTime, Filter filter, String lastScanKey, byte[][] outputQualifiers) {
-		super(ed, partitions, startTime, endTime, filter, lastScanKey, outputQualifiers);
-	}
-
-	/**
-	 * This constructor supports partition.
-	 *
-	 * @param ed               entity definition
-	 * @param partitions       partition values, which is sorted in partition definition order. TODO: in future we need to support
-	 *                         multiple values for one partition field
-	 * @param startTime        start time of the query
-	 * @param endTime          end time of the query
-	 * @param filter           filter for the hbase scan
-	 * @param lastScanKey      the key of last scan
-	 * @param outputQualifiers the bytes of output qualifier names
-	 * @param prefix           can be populated from outside world specifically for generic metric reader
-	 */
-	public HBaseLogReader2(EntityDefinition ed, List<String> partitions, Date startTime, Date endTime, Filter filter, String lastScanKey, byte[][] outputQualifiers, String prefix) {
-		super(ed, partitions, startTime, endTime, filter, lastScanKey, outputQualifiers, prefix);
-	}
-
-	@Override
-	protected void onOpen(HTableInterface tbl, Scan scan) throws IOException {
-		rs = tbl.getScanner(scan);
-	}
-
-	/**
-	 * <h2>Close:</h2>
-	 * 1. Call super.close(): release current table connection <br></br>
-	 * 2. Close Scanner<br></br>
-	 *
-	 * @throws IOException
-	 */
-	@Override
-	public void close() throws IOException {
-		super.close();
-		if(rs != null){
-			rs.close();
-		}
-	}
-
-	@Override
-	public InternalLog read() throws IOException {
-		if (rs == null)
-			throw new IllegalArgumentException(
-					"ResultScanner must be initialized before reading");
-		InternalLog t = null;
-		Result r = rs.next();
-		if (r != null) {
-			t = HBaseInternalLogHelper.parse(_ed, r, qualifiers);
-		}
-		return t;
-	}
-}

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/afe86834/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/HBaseLogWriter.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/HBaseLogWriter.java b/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/HBaseLogWriter.java
deleted file mode 100644
index 587aa2d..0000000
--- a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/HBaseLogWriter.java
+++ /dev/null
@@ -1,152 +0,0 @@
-/*
- * 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 eagle.log.entity;
-
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-
-import eagle.common.config.EagleConfigFactory;
-import org.apache.hadoop.hbase.client.HTableFactory;
-import org.apache.hadoop.hbase.client.HTableInterface;
-import org.apache.hadoop.hbase.client.Put;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-public class HBaseLogWriter implements LogWriter {
-	private static Logger LOG = LoggerFactory.getLogger(HBaseLogWriter.class);
-	private static byte[] EMPTY_INDEX_QUALIFER_VALUE = "".getBytes();
-	
-	private HTableInterface tbl;
-	private String table;
-	private String columnFamily;
-	
-	public HBaseLogWriter(String table, String columnFamily) {
-		// TODO assert for non-null of table and columnFamily
-		this.table = table;
-		this.columnFamily = columnFamily;
-	}
-	
-	@Override
-	public void open() throws IOException {
-		try{
-			tbl = EagleConfigFactory.load().getHTable(this.table);
-//			LOGGER.info("HBase table " + table + " audo reflush is " + (tbl.isAutoFlush() ? "enabled" : "disabled"));
-		}catch(Exception ex){
-			LOG.error("Cannot create htable", ex);
-			throw new IOException(ex);
-		}
-	}
-
-	@Override
-	public void close() throws IOException {
-		if(tbl != null){
-			new HTableFactory().releaseHTableInterface(tbl);
-		}
-	}
-
-	@Override
-	public void flush() throws IOException {
-		tbl.flushCommits();
-	}
-	
-	protected void populateColumnValues(Put p, InternalLog log){
-		Map<String, byte[]> qualifierValues = log.getQualifierValues();
-		// iterate all qualifierValues
-		for(Map.Entry<String, byte[]> entry : qualifierValues.entrySet()){
-			p.add(columnFamily.getBytes(), entry.getKey().getBytes(), entry.getValue());
-		}
-		
-		Map<String, String> tags = log.getTags();
-		// iterate all tags, each tag will be stored as a column qualifier
-		if(tags != null){
-			for(Map.Entry<String, String> entry : tags.entrySet()){
-				// TODO need a consistent handling of null values
-				if(entry.getValue() != null)
-					p.add(columnFamily.getBytes(), entry.getKey().getBytes(), entry.getValue().getBytes());
-			}
-		}
-	}
-
-	/**
-	 * TODO need think about if multi-PUT is necessary, by checking if autoFlush works
-	 */
-	@Override
-	public byte[] write(InternalLog log) throws IOException{
-		final byte[] rowkey = RowkeyBuilder.buildRowkey(log);
-		final Put p = new Put(rowkey);
-		populateColumnValues(p, log);
-		tbl.put(p);
-		final List<byte[]> indexRowkeys = log.getIndexRowkeys();
-		if (indexRowkeys != null) {
-			writeIndexes(rowkey, indexRowkeys);
-		}
-		return rowkey;
-	}
-
-	/**
-	 * TODO need think about if multi-PUT is necessary, by checking if autoFlush works
-	 */
-	public List<byte[]> write(List<InternalLog> logs) throws IOException{
-		final List<Put> puts = new ArrayList<Put>(logs.size());
-		final List<byte[]> result = new ArrayList<byte[]>(logs.size());
-		for (InternalLog log : logs) {
-			final byte[] rowkey = RowkeyBuilder.buildRowkey(log);
-			final Put p = new Put(rowkey);
-			populateColumnValues(p, log);
-			puts.add(p);
-			final List<byte[]> indexRowkeys = log.getIndexRowkeys();
-			if (indexRowkeys != null) {
-				writeIndexes(rowkey, indexRowkeys, puts);
-			}
-			result.add(rowkey);
-		}
-		tbl.put(puts);
-		return result;
-	}
-	
-	@Override
-	public void updateByRowkey(byte[] rowkey, InternalLog log) throws IOException{
-		Put p = new Put(rowkey);
-		populateColumnValues(p, log);
-		tbl.put(p);
-		final List<byte[]> indexRowkeys = log.getIndexRowkeys();
-		if (indexRowkeys != null) {
-			writeIndexes(rowkey, indexRowkeys);
-		}
-	}
-
-	private void writeIndexes(byte[] rowkey, List<byte[]> indexRowkeys) throws IOException {
-		for (byte[] indexRowkey : indexRowkeys) {
-			Put p = new Put(indexRowkey);
-			p.add(columnFamily.getBytes(), rowkey, EMPTY_INDEX_QUALIFER_VALUE);
-			tbl.put(p);
-		}
-	}
-
-	private void writeIndexes(byte[] rowkey, List<byte[]> indexRowkeys, List<Put> puts) throws IOException {
-		for (byte[] indexRowkey : indexRowkeys) {
-			Put p = new Put(indexRowkey);
-			p.add(columnFamily.getBytes(), rowkey, EMPTY_INDEX_QUALIFER_VALUE);
-			puts.add(p);
-//			tbl.put(p);
-		}
-	}
-
-	
-}

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/afe86834/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/InternalLog.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/InternalLog.java b/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/InternalLog.java
deleted file mode 100755
index e274f22..0000000
--- a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/InternalLog.java
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * 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 eagle.log.entity;
-
-import eagle.common.DateTimeUtil;
-
-import java.util.List;
-import java.util.Map;
-
-/**
- * TODO we should decouple BaseLog during write time and BaseLog during read time
- */
-public class InternalLog {
-	private String encodedRowkey;
-	private String prefix;
-	private String[] partitions;
-	private long timestamp;
-	private Map<String, byte[]> qualifierValues;
-
-	private Map<String,Object> extraValues;
-	private Map<String, String> tags;
-	private Map<String, List<String>> searchTags;
-	private List<byte[]> indexRowkeys;
-
-	public String getEncodedRowkey() {
-		return encodedRowkey;
-	}
-
-	public void setEncodedRowkey(String encodedRowkey) {
-		this.encodedRowkey = encodedRowkey;
-	}
-	
-	public Map<String, byte[]> getQualifierValues() {
-		return qualifierValues;
-	}
-	public void setQualifierValues(Map<String, byte[]> qualifierValues) {
-		this.qualifierValues = qualifierValues;
-	}
-
-	public Map<String, List<String>> getSearchTags() {
-		return searchTags;
-	}
-	public void setSearchTags(Map<String, List<String>> searchTags) {
-		this.searchTags = searchTags;
-	}
-	public String getPrefix() {
-		return prefix;
-	}
-	public void setPrefix(String prefix) {
-		this.prefix = prefix;
-	}
-	public String[] getPartitions() {
-		return partitions;
-	}
-	public void setPartitions(String[] partitions) {
-		this.partitions = partitions;
-	}
-	public long getTimestamp() {
-		return timestamp;
-	}
-	public void setTimestamp(long timestamp) {
-		this.timestamp = timestamp;
-	}
-	public Map<String, String> getTags() {
-		return tags;
-	}
-	public void setTags(Map<String, String> tags) {
-		this.tags = tags;
-	}
-	public List<byte[]> getIndexRowkeys() {
-		return indexRowkeys;
-	}
-	public void setIndexRowkeys(List<byte[]> indexRowkeys) {
-		this.indexRowkeys = indexRowkeys;
-	}
-	public Map<String, Object> getExtraValues() { return extraValues; }
-	public void setExtraValues(Map<String, Object> extraValues) { this.extraValues = extraValues; }
-
-	public String toString(){
-		StringBuffer sb = new StringBuffer();
-		sb.append(prefix);
-		sb.append("|");
-		sb.append(DateTimeUtil.millisecondsToHumanDateWithMilliseconds(timestamp));
-		sb.append("(");
-		sb.append(timestamp);
-		sb.append(")");
-		sb.append("|searchTags:");
-		if(searchTags != null){
-			for(String tagkey : searchTags.keySet()){
-				sb.append(tagkey);
-				sb.append('=');
-				List<String> tagValues = searchTags.get(tagkey);
-				sb.append("(");
-				for(String tagValue : tagValues){
-					sb.append(tagValue);
-					sb.append(",");
-				}
-				sb.append(")");
-				sb.append(",");
-			}
-		}
-		sb.append("|tags:");
-		if(tags != null){
-			for(Map.Entry<String, String> entry : tags.entrySet()){
-				sb.append(entry.getKey());
-				sb.append("=");
-				sb.append(entry.getValue());
-				sb.append(",");
-			}
-		}
-		sb.append("|columns:");
-		if(qualifierValues != null){
-			for(String qualifier : qualifierValues.keySet()){
-				byte[] value = qualifierValues.get(qualifier);
-				sb.append(qualifier);
-				sb.append("=");
-				if(value != null){
-					sb.append(new String(value));
-				}
-				sb.append(",");
-			}
-		}
-		return sb.toString();
-	}
-}

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/afe86834/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/ListQueryAPIResponseEntity.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/ListQueryAPIResponseEntity.java b/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/ListQueryAPIResponseEntity.java
deleted file mode 100755
index caf75c7..0000000
--- a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/ListQueryAPIResponseEntity.java
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * 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 eagle.log.entity;
-
-import org.codehaus.jackson.annotate.JsonIgnoreProperties;
-import org.codehaus.jackson.map.annotate.JsonSerialize;
-
-/**
- * TODO: (hchen9) currently we disable firstTimestamp in response avoid breaking older client implementation, but we may need to remove "firstTimestamp" from @JsonIgnoreProperties(ignoreUnknown = true,value={"firstTimestamp"}) to enable the feature later
- */
-@JsonSerialize(include=JsonSerialize.Inclusion.NON_NULL)
-@JsonIgnoreProperties(ignoreUnknown = true,value={"firstTimestamp"})
-public class ListQueryAPIResponseEntity {
-	private boolean success;
-	private String exception;
-	private int totalResults;
-	private long elapsedms;
-	private long lastTimestamp;
-	private long firstTimestamp;
-	public long getFirstTimestamp() {
-		return firstTimestamp;
-	}
-	public void setFirstTimestamp(long firstTimestamp) {
-		this.firstTimestamp = firstTimestamp;
-	}
-	private Object obj;
-
-	public long getElapsedms() {
-		return elapsedms;
-	}
-	public void setElapsedms(long elapsedms) {
-		this.elapsedms = elapsedms;
-	}
-	public boolean isSuccess() {
-		return success;
-	}
-	public void setSuccess(boolean success) {
-		this.success = success;
-	}
-	public String getException() {
-		return exception;
-	}
-	public void setException(String exception) {
-		this.exception = exception;
-	}
-	public int getTotalResults() {
-		return totalResults;
-	}
-	public void setTotalResults(int totalResults) {
-		this.totalResults = totalResults;
-	}
-	public long getLastTimestamp() {
-		return lastTimestamp;
-	}
-	public void setLastTimestamp(long lastTimestamp) {
-		this.lastTimestamp = lastTimestamp;
-	}
-	public Object getObj() {
-		return obj;
-	}
-	public void setObj(Object obj) {
-		this.obj = obj;
-	}
-}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/afe86834/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/LogReader.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/LogReader.java b/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/LogReader.java
deleted file mode 100755
index 4c05ebb..0000000
--- a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/LogReader.java
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * 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 eagle.log.entity;
-
-import java.io.Closeable;
-import java.io.IOException;
-
-public interface LogReader<T> extends Closeable{
-	public void open() throws IOException;
-
-	public void close() throws IOException;
-	
-	public T read() throws IOException;
-}

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/afe86834/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/LogWriter.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/LogWriter.java b/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/LogWriter.java
deleted file mode 100644
index 60f5a7f..0000000
--- a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/LogWriter.java
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * 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 eagle.log.entity;
-
-import java.io.Closeable;
-import java.io.IOException;
-
-public interface LogWriter extends Closeable{
-	public void flush() throws IOException;
-
-	public void open() throws IOException;
-
-	public void close() throws IOException;
-
-	public byte[] write(InternalLog log) throws IOException;
-	
-	public void updateByRowkey(byte[] rowkey, InternalLog log) throws IOException;
-}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/afe86834/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/MetricMetadataEntity.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/MetricMetadataEntity.java b/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/MetricMetadataEntity.java
deleted file mode 100755
index 835e156..0000000
--- a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/MetricMetadataEntity.java
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * 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 eagle.log.entity;
-
-import eagle.log.entity.meta.Column;
-import eagle.log.entity.meta.ColumnFamily;
-import eagle.log.entity.meta.Indexes;
-import eagle.log.entity.meta.Service;
-import org.codehaus.jackson.map.annotate.JsonSerialize;
-
-import eagle.log.base.taggedlog.TaggedLogAPIEntity;
-import eagle.log.entity.meta.Index;
-import eagle.log.entity.meta.Prefix;
-import eagle.log.entity.meta.Table;
-import eagle.log.entity.meta.TimeSeries;
-
-
-@JsonSerialize(include=JsonSerialize.Inclusion.NON_NULL)
-@Table("eagle_metric")
-@ColumnFamily("f")
-@Prefix("dmeta")
-@Service("MetricMetadataService")
-@TimeSeries(false)
-@Indexes({
-	@Index(name="Index_1_name", columns = { "name" }, unique = true)
-	})
-public class MetricMetadataEntity extends TaggedLogAPIEntity {
-	
-	@Column("a")
-	private String storeType;
-	@Column("b")
-	private String displayName;
-	@Column("c")
-	private String defaultDownSamplingFunction;
-	@Column("d")
-	private String defaultAggregateFunction;
-	@Column("e")
-	private String aggFunctions;
-	@Column("f")
-	private String downSamplingFunctions;
-	@Column("g")
-	private String resolutions;
-	@Column("h")
-	private String drillDownPaths;
-	
-	public String getStoreType() {
-		return storeType;
-	}
-	public void setStoreType(String storeType) {
-		this.storeType = storeType;
-		_pcs.firePropertyChange("storeType", null, null);
-	}
-	public String getDisplayName() {
-		return displayName;
-	}
-	public void setDisplayName(String displayName) {
-		this.displayName = displayName;
-		_pcs.firePropertyChange("displayName", null, null);
-	}
-	public String getDefaultDownSamplingFunction() {
-		return defaultDownSamplingFunction;
-	}
-	public void setDefaultDownSamplingFunction(String defaultDownSamplingFunction) {
-		this.defaultDownSamplingFunction = defaultDownSamplingFunction;
-		_pcs.firePropertyChange("defaultDownSamplingFunction", null, null);
-	}
-	public String getDefaultAggregateFunction() {
-		return defaultAggregateFunction;
-	}
-	public void setDefaultAggregateFunction(String defaultAggregateFunction) {
-		this.defaultAggregateFunction = defaultAggregateFunction;
-		_pcs.firePropertyChange("defaultAggregateFunction", null, null);
-	}
-	public String getAggFunctions() {
-		return aggFunctions;
-	}
-	public void setAggFunctions(String aggFunctions) {
-		this.aggFunctions = aggFunctions;
-		_pcs.firePropertyChange("aggFunctions", null, null);
-	}
-	public String getDownSamplingFunctions() {
-		return downSamplingFunctions;
-	}
-	public void setDownSamplingFunctions(String downSamplingFunctions) {
-		this.downSamplingFunctions = downSamplingFunctions;
-		_pcs.firePropertyChange("downSamplingFunctions", null, null);
-	}
-	public String getResolutions() {
-		return resolutions;
-	}
-	public void setResolutions(String resolutions) {
-		this.resolutions = resolutions;
-		_pcs.firePropertyChange("resolutions", null, null);
-	}
-	public String getDrillDownPaths() {
-		return drillDownPaths;
-	}
-	public void setDrillDownPaths(String drillDownPaths) {
-		this.drillDownPaths = drillDownPaths;
-		_pcs.firePropertyChange("drillDownPaths", null, null);
-	}
-	
-}

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/afe86834/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/QualifierCreationListener.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/QualifierCreationListener.java b/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/QualifierCreationListener.java
deleted file mode 100755
index 8a2898d..0000000
--- a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/QualifierCreationListener.java
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * 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 eagle.log.entity;
-
-import java.util.Map;
-
-public interface QualifierCreationListener {
-	/**
-	 * Qualifier <b>display name</b> mapped to qualifier value in bytes[]
-	 *
-	 * @param qualifiers
-	 */
-	public void qualifierCreated(Map<String, byte[]> qualifiers);
-}

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/afe86834/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/QualifierNotDefinedException.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/QualifierNotDefinedException.java b/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/QualifierNotDefinedException.java
deleted file mode 100644
index b7a8944..0000000
--- a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/QualifierNotDefinedException.java
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * 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 eagle.log.entity;
-
-public class QualifierNotDefinedException extends Exception{
-	/**
-	 * 
-	 */
-	private static final long serialVersionUID = 1L;
-
-	public QualifierNotDefinedException(String message){
-		super(message);
-	}
-}

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/afe86834/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/RowkeyBuilder.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/RowkeyBuilder.java b/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/RowkeyBuilder.java
deleted file mode 100755
index 0a41cb8..0000000
--- a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/RowkeyBuilder.java
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * 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 eagle.log.entity;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-import java.util.SortedMap;
-import java.util.TreeMap;
-
-import eagle.log.entity.meta.EntityConstants;
-import eagle.log.entity.meta.EntityDefinition;
-import eagle.common.ByteUtil;
-
-public class RowkeyBuilder {
-	
-	public static final int EMPTY_PARTITION_DEFAULT_HASH_CODE = 0;
-	
-	/**
-	 * Generate the internal sorted hashmap for tags. Please note the partition tags should not be included in the result map.
-	 * @param partitions array of partition tags in order
-	 * @param tags tags of the entity
-	 * @return the sorted hash map of the tags
-	 */
-	public static SortedMap<Integer, Integer> generateSortedTagMap(String[] partitions, Map<String, String> tags) {
-		final SortedMap<Integer, Integer> tagHashMap = new TreeMap<Integer, Integer>();
-		for (Map.Entry<String, String> entry: tags.entrySet()) {
-			final String tagName = entry.getKey();
-			final String tagValue = entry.getValue();
-			// If it's a partition tag, we need to remove it from tag hash list. It need to 
-			// put to the fix partition hash slot in rowkey.
-			if (tagValue == null || isPartitionTag(partitions, tagName))
-				continue;
-			tagHashMap.put(tagName.hashCode(), tagValue.hashCode());
-		}
-		return tagHashMap;
-	}
-	
-	/**
-	 * build rowkey from InternalLog object
-	 * @param log internal log entity to write
-	 * @return the rowkey of the entity
-	 */
-	public static byte[] buildRowkey(InternalLog log) {
-		final String[] partitions = log.getPartitions();
-		final Map<String, String> tags = log.getTags();
-		final SortedMap<Integer, Integer> tagHashMap = generateSortedTagMap(partitions, tags);
-		
-		// reverse timestamp
-		long ts = Long.MAX_VALUE - log.getTimestamp();
-		
-		List<Integer> partitionHashValues = new ArrayList<Integer>();
-		if (partitions != null) {
-			for (String partition : partitions) {
-				final String tagValue = tags.get(partition);
-				if (tagValue != null) {
-					partitionHashValues.add(tagValue.hashCode());
-				} else {
-					partitionHashValues.add(EMPTY_PARTITION_DEFAULT_HASH_CODE);
-				}
-			}
-		}
-		return buildRowkey(log.getPrefix().hashCode(), partitionHashValues, ts, tagHashMap);
-	}
-	
-	public static long getTimestamp(byte[] rowkey, EntityDefinition ed) {
-		if (!ed.isTimeSeries()) {
-			return EntityConstants.FIXED_WRITE_TIMESTAMP;
-		}
-		final int offset = (ed.getPartitions() == null) ? 4 : (4 + ed.getPartitions().length * 4);
-		return Long.MAX_VALUE - ByteUtil.bytesToLong(rowkey, offset);
-	}
-	
-	/**
-	 * Check if the tagName is one of the partition tags
-	 * @param partitions paritition tags of the entity
-	 * @param tagName the tag name that needs to check
-	 * @return
-	 */
-	private static boolean isPartitionTag(String[] partitions, String tagName) {
-		if (partitions != null) {
-			for (String partition : partitions) {
-				if (partition.equals(tagName)) {
-					return true;
-				}
-			}
-		}
-		return false;
-	}
-
-	/**
-	 * rowkey is: prefixHash:4 + (partitionValueHash:4)* + timestamp:8 + (tagnameHash:4 + tagvalueHash:4)*
-	 * partition fields are sorted by partition definition order, while tag fields are sorted by tag name's 
-	 * hash code values. 
-	 */
-	private static byte[] buildRowkey(int prefixHash, List<Integer> partitionHashValues, long timestamp, SortedMap<Integer, Integer> tags){
-		// alloacate byte array for rowkey
-		final int len = 4 + 8 + tags.size() * (4 + 4) + (partitionHashValues.size() * 4);
-		final byte[] rowkey = new byte[len];
-		int offset = 0;
-
-		// 1. set prefix
-		ByteUtil.intToBytes(prefixHash, rowkey, offset);
-		offset += 4;
-		
-		// 2. set partition
-		for (Integer partHash : partitionHashValues) {
-			ByteUtil.intToBytes(partHash, rowkey, offset);
-			offset += 4;
-		}
-		
-		// 3. set timestamp
-		ByteUtil.longToBytes(timestamp, rowkey, offset);
-		offset += 8;
-
-		// 4. set tag key/value hashes
-		for (Map.Entry<Integer, Integer> entry : tags.entrySet()) {
-			ByteUtil.intToBytes(entry.getKey(), rowkey, offset);
-			offset += 4;
-			ByteUtil.intToBytes(entry.getValue(), rowkey, offset);
-			offset += 4;
-		}
-		
-		return rowkey;
-	}
-}

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/afe86834/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/RowkeyQueryAPIResponseEntity.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/RowkeyQueryAPIResponseEntity.java b/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/RowkeyQueryAPIResponseEntity.java
deleted file mode 100644
index c25e4a9..0000000
--- a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/RowkeyQueryAPIResponseEntity.java
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * 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 eagle.log.entity;
-
-import org.codehaus.jackson.map.annotate.JsonSerialize;
-
-@JsonSerialize(include=JsonSerialize.Inclusion.NON_NULL)
-public class RowkeyQueryAPIResponseEntity {
-	private boolean success;
-	private String exception;
-	private Object obj;
-
-	public boolean isSuccess() {
-		return success;
-	}
-	public void setSuccess(boolean success) {
-		this.success = success;
-	}
-	public String getException() {
-		return exception;
-	}
-	public void setException(String exception) {
-		this.exception = exception;
-	}
-	public Object getObj() {
-		return obj;
-	}
-	public void setObj(Object obj) {
-		this.obj = obj;
-	}
-}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/afe86834/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/SearchCondition.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/SearchCondition.java b/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/SearchCondition.java
deleted file mode 100755
index 18f94f6..0000000
--- a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/SearchCondition.java
+++ /dev/null
@@ -1,148 +0,0 @@
-/*
- * 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 eagle.log.entity;
-
-import eagle.query.parser.ORExpression;
-import org.apache.hadoop.hbase.filter.Filter;
-
-import java.util.List;
-import java.util.Map;
-
-/**
- * search condition includes the following:
- * 1. prefix - part of rowkey
- * 2. startTime,endTime - timestamp, part of rowkey
- * 3. hbase filter converted from query 
- * 4. aggregate parameters
- * 4. sort options
- * 5. output fields and tags
- * 6. entityName
- * 7. pagination: pageSize and startRowkey
- */
-public class SearchCondition{
-	private String startTime;
-	private String endTime;
-	private Filter filter;
-	private List<String> outputFields;
-	private boolean outputAll;
-	private long pageSize;
-	private String startRowkey;
-	private String entityName;
-	private List<String> partitionValues;
-	private ORExpression queryExpression;
-
-	public boolean isOutputVerbose() {
-		return outputVerbose;
-	}
-
-	public void setOutputVerbose(boolean outputVerbose) {
-		this.outputVerbose = outputVerbose;
-	}
-
-	public Map<String, String> getOutputAlias() {
-		return outputAlias;
-	}
-
-	public void setOutputAlias(Map<String, String> outputAlias) {
-		this.outputAlias = outputAlias;
-	}
-
-	private boolean outputVerbose;
-	private Map<String,String> outputAlias;
-
-	/**
-	 * copy constructor
-	 * @param sc
-	 */
-	public SearchCondition(SearchCondition sc){
-		this.startTime = sc.startTime;
-		this.endTime = sc.endTime;
-		this.filter = sc.filter;
-		this.outputFields = sc.outputFields;
-		this.pageSize = sc.pageSize;
-		this.startRowkey = sc.startRowkey;
-		this.entityName = sc.entityName;
-		this.partitionValues = sc.partitionValues;
-		this.queryExpression = sc.queryExpression;
-	}
-	
-	public SearchCondition(){
-	}
-	
-	public Filter getFilter() {
-		return filter;
-	}
-	public void setFilter(Filter filter) {
-		this.filter = filter;
-	}
-	public long getPageSize() {
-		return pageSize;
-	}
-	public void setPageSize(long pageSize) {
-		this.pageSize = pageSize;
-	}
-	public String getStartRowkey() {
-		return startRowkey;
-	}
-	public void setStartRowkey(String startRowkey) {
-		this.startRowkey = startRowkey;
-	}
-	public String getEntityName() {
-		return entityName;
-	}
-	public void setEntityName(String entityName) {
-		this.entityName = entityName;
-	}
-	public List<String> getOutputFields() {
-		return outputFields;
-	}
-	public void setOutputFields(List<String> outputFields) {
-		this.outputFields = outputFields;
-	}
-	public String getStartTime() {
-		return startTime;
-	}
-	public void setStartTime(String startTime) {
-		this.startTime = startTime;
-	}
-	public String getEndTime() {
-		return endTime;
-	}
-	public void setEndTime(String endTime) {
-		this.endTime = endTime;
-	}
-	public List<String> getPartitionValues() {
-		return partitionValues;
-	}
-	public void setPartitionValues(List<String> partitionValues) {
-		this.partitionValues = partitionValues;
-	}
-	public ORExpression getQueryExpression() {
-		return queryExpression;
-	}
-	public void setQueryExpression(ORExpression queryExpression) {
-		this.queryExpression = queryExpression;
-	}
-
-	public boolean isOutputAll() {
-		return outputAll;
-	}
-
-	public void setOutputAll(boolean outputAll) {
-		this.outputAll = outputAll;
-	}
-}

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/afe86834/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/StreamReader.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/StreamReader.java b/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/StreamReader.java
deleted file mode 100755
index 682f488..0000000
--- a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/StreamReader.java
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * 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 eagle.log.entity;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public abstract class StreamReader {
-	protected List<EntityCreationListener> _listeners = new ArrayList<EntityCreationListener>();
-
-	/**
-	 * Listener can be only notified after it is added to listener list
-	 * @param listener
-	 */
-	public synchronized void register(EntityCreationListener listener){
-		_listeners.add(listener);
-	}
-	
-	/**
-	 * Listener can not get notification once after it is removed from listener list
-	 * @param listener
-	 */
-	public synchronized void unregister(EntityCreationListener listener){
-		_listeners.remove(listener);
-	}
-	
-	public abstract void readAsStream() throws Exception;
-	
-	/**
-	 * Get scanned last entity timestamp
-	 * 
-	 * @return
-	 */
-	public abstract long getLastTimestamp();
-	
-	/**
-	 * Get scanned first entity timestamp
-	 * @return
-	 */
-	public abstract long getFirstTimestamp();
-}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/afe86834/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/filter/BooleanExpressionComparator.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/filter/BooleanExpressionComparator.java b/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/filter/BooleanExpressionComparator.java
deleted file mode 100755
index 9298835..0000000
--- a/eagle-core/eagle-query/eagle-entity-base/src/main/java/eagle/log/entity/filter/BooleanExpressionComparator.java
+++ /dev/null
@@ -1,300 +0,0 @@
-/*
- * 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 eagle.log.entity.filter;
-
-import eagle.log.entity.EntityQualifierUtils;
-import eagle.log.entity.meta.EntityDefinition;
-import eagle.log.entity.meta.EntitySerDeser;
-import eagle.log.entity.meta.Qualifier;
-import eagle.log.expression.ExpressionParser;
-import eagle.log.expression.ParsiiInvalidException;
-import eagle.query.parser.ComparisonOperator;
-import eagle.query.parser.TokenType;
-import org.apache.commons.lang.StringUtils;
-import org.apache.hadoop.hbase.KeyValue;
-import org.apache.hadoop.io.WritableComparable;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import parsii.tokenizer.ParseException;
-
-import java.io.DataInput;
-import java.io.DataOutput;
-import java.io.IOException;
-import java.util.*;
-
-/**
- * BooleanExpressionComparator
- *
- * Currently support double expression only.
- *
- * TODO: 1) thread-safe? 2) Rewrite filter expression to evaluate once
- *
- */
-public class BooleanExpressionComparator implements WritableComparable<List<KeyValue>> {
-    private final static Logger LOG = LoggerFactory.getLogger(BooleanExpressionComparator.class);
-
-    // Should be Writable
-    private QualifierFilterEntity filterEntity;
-    private EntityDefinition ed;
-
-    // Should not be writable
-    private double leftValue;
-    private double rightValue;
-    private BooleanExprFunc func = null;
-
-    public Set<String> getRequiredFields() {
-        return requiredFields;
-    }
-
-    private Set<String> requiredFields = new HashSet<String>();
-
-    public BooleanExpressionComparator(){}
-
-    public BooleanExpressionComparator(QualifierFilterEntity entity,EntityDefinition ed){
-        this.filterEntity  = entity;
-        this.ed = ed;
-        try {
-            this.init();
-        } catch (Exception ex) {
-            // Client side expression validation to fast fail if having error
-            LOG.error("Got exception: "+ex.getMessage(),ex);
-            throw new ExpressionEvaluationException(ex.getMessage(),ex);
-        }
-    }
-
-    private void init() throws ParsiiInvalidException, ParseException {
-        LOG.info("Filter expression: "+filterEntity.toString());
-        if (filterEntity.getKey() != null) {
-            if (filterEntity.getKeyType() == TokenType.NUMBER) {
-                leftValue = Double.parseDouble(filterEntity.getKey());
-            } else {
-                ExpressionParser parser = ExpressionParser.parse(filterEntity.getKey());
-                requiredFields.addAll(parser.getDependentFields());
-            }
-        } else {
-            throw new IllegalStateException("QualifierFilterEntity key is null");
-        }
-
-        if (filterEntity.getValue() != null) {
-            if (filterEntity.getValueType() == TokenType.NUMBER) {
-                rightValue = Double.parseDouble(filterEntity.getValue());
-            } else {
-                ExpressionParser parser = ExpressionParser.parse(filterEntity.getValue());
-                requiredFields.addAll(parser.getDependentFields());
-            }
-        } else {
-            throw new IllegalStateException("QualifierFilterEntity value is null");
-        }
-
-        if (this.filterEntity.getOp() == null)
-            throw new IllegalStateException("QualifierFilterEntity op is null");
-        this.func = _opExprFuncMap.get(this.filterEntity.getOp());
-        if (this.func == null)
-            throw new IllegalStateException("No boolean evaluation function found for operation: " + this.filterEntity.getOp());
-    }
-
-    /**
-     * if(Double.isInfinite(leftValue) || Double.isInfinite(rightValue)) return false;
-     *
-     * @param context Map[String,Double]
-     * @return evaluation result as true (1) or false (0)
-     * @throws Exception
-     */
-    private boolean eval(Map<String,Double> context) throws Exception {
-        if(filterEntity.getKeyType() != TokenType.NUMBER){
-            leftValue = eval(filterEntity.getKey(),context);
-        }
-        if(filterEntity.getValueType() != TokenType.NUMBER){
-            rightValue = eval(filterEntity.getValue(),context);
-        }
-        if(Double.isInfinite(leftValue) || Double.isInfinite(rightValue)){
-//            if(LOG.isDebugEnabled()) {
-            if (Double.isInfinite(leftValue)) {
-                LOG.warn("Evaluation result of key: " + this.filterEntity.getKey() + " is " + leftValue + " (Infinite), ignore");
-            } else {
-                LOG.warn("Evaluation result of value: "+this.filterEntity.getValue()+" is "+rightValue+" (Infinite), ignore");
-            }
-//            }
-            return false;
-        }
-        return func.eval(leftValue,rightValue);
-    }
-
-    /**
-     * if(Double.isInfinite(leftValue) || Double.isInfinite(rightValue)) return false;
-     *
-     * @param expr
-     * @param context
-     * @return
-     * @throws Exception
-     */
-    private double eval(String expr,Map<String,Double> context) throws Exception {
-        return ExpressionParser.parse(expr).eval(context);
-    }
-
-    /**
-     *
-     * @param row List[KeyValue] All key values in a row
-     *
-     * @return 0 to filter out row [false], otherwise to include row into scanner [true]
-     */
-    @Override
-    public int compareTo(List<KeyValue> row) {
-        Map<String,Double> context = new HashMap<String, Double>();
-        for(KeyValue kv:row){
-            String qualifierName = new String(kv.getQualifier());
-
-            // Because assume just handle about double value
-            // so ignore tag whose value is String
-            if(!this.ed.isTag(qualifierName)){
-                Qualifier qualifier = this.ed.getQualifierNameMap().get(qualifierName);
-                String displayName = qualifier.getDisplayName();
-                if(displayName == null) displayName = qualifierName;
-                try {
-                    if(this.requiredFields.contains(displayName)) {
-                        EntitySerDeser serDeser = qualifier.getSerDeser();
-                        double value = EntityQualifierUtils.convertObjToDouble(serDeser.deserialize(kv.getValue()));
-                        if (Double.isNaN(value)) {
-                            context.put(displayName, value);
-                        }
-                    }
-                }catch (Exception ex){
-                    LOG.warn("Failed to parse value of field "+displayName+" as double, ignore: "+ex.getMessage(),ex);
-                }
-            }
-        }
-        return compareTo(context);
-    }
-
-    /**
-     * @param context Map[String,Double]
-     *
-     * @return context.keySet().containsAll(this.requiredFields) && eval(context) ? 1:0;
-     */
-    int compareTo(Map<String,Double> context){
-        try {
-            if(context.keySet().containsAll(this.requiredFields)){
-                return eval(context)? 1:0;
-            }else{
-                if(LOG.isDebugEnabled()) {
-                    LOG.debug("Require variables: [" + StringUtils.join(this.requiredFields, ",") + "], but just given: [" + StringUtils.join(context.keySet(), ",") + "]");
-                }
-                return 0;
-            }
-        } catch (Exception e) {
-            LOG.error(e.getMessage(),e);
-            throw new ExpressionEvaluationException(e.getMessage(),e);
-        }
-    }
-
-    @Override
-    public void write(DataOutput out) throws IOException {
-        this.filterEntity.write(out);
-        this.ed.write(out);
-    }
-
-    @Override
-    public void readFields(DataInput in) throws IOException {
-        this.filterEntity = new QualifierFilterEntity();
-        this.filterEntity.readFields(in);
-        this.ed = new EntityDefinition();
-        this.ed.readFields(in);
-
-        try {
-            this.init();
-        } catch (Exception ex){
-            LOG.error("Got exception: "+ex.getMessage(),ex);
-            throw new IOException(ex.getMessage(),ex);
-        }
-    }
-
-    private static Map<ComparisonOperator,BooleanExprFunc> _opExprFuncMap = new HashMap<ComparisonOperator, BooleanExprFunc>();
-
-    static {
-        _opExprFuncMap.put(ComparisonOperator.EQUAL,new EqualExprFunc());
-        _opExprFuncMap.put(ComparisonOperator.IS,new EqualExprFunc());
-
-        _opExprFuncMap.put(ComparisonOperator.NOT_EQUAL,new NotEqualExprFunc());
-        _opExprFuncMap.put(ComparisonOperator.IS_NOT,new NotEqualExprFunc());
-
-        _opExprFuncMap.put(ComparisonOperator.LESS,new LessExprFunc());
-        _opExprFuncMap.put(ComparisonOperator.LESS_OR_EQUAL,new LessOrEqualExprFunc());
-        _opExprFuncMap.put(ComparisonOperator.GREATER,new GreaterExprFunc());
-        _opExprFuncMap.put(ComparisonOperator.GREATER_OR_EQUAL,new GreaterOrEqualExprFunc());
-
-        // "Life should be much better with functional programming language" - Hao Chen Nov 18th, 2014
-    }
-
-    private static interface BooleanExprFunc {
-        boolean eval(double val1,double val2);
-    }
-
-    private static class EqualExprFunc implements BooleanExprFunc {
-        @Override
-        public boolean eval(double val1, double val2) {
-            return val1 == val2;
-        }
-    }
-    private static class NotEqualExprFunc implements BooleanExprFunc {
-        @Override
-        public boolean eval(double val1, double val2) {
-            return val1 != val2;
-        }
-    }
-
-    private static class LessExprFunc implements BooleanExprFunc {
-        @Override
-        public boolean eval(double val1, double val2) {
-            return val1 < val2;
-        }
-    }
-    private static class LessOrEqualExprFunc implements BooleanExprFunc {
-        @Override
-        public boolean eval(double val1, double val2) {
-            return val1 <= val2;
-        }
-    }
-    private static class GreaterExprFunc implements BooleanExprFunc {
-        @Override
-        public boolean eval(double val1, double val2) {
-            return val1 > val2;
-        }
-    }
-    private static class GreaterOrEqualExprFunc implements BooleanExprFunc {
-        @Override
-        public boolean eval(double val1, double val2) {
-            return val1 >= val2;
-        }
-    }
-
-    public static class ExpressionEvaluationException extends RuntimeException{
-        public ExpressionEvaluationException(String message, Throwable cause) {
-            super(message, cause);
-        }
-        public ExpressionEvaluationException(String message) {
-            super(message);
-        }
-        public ExpressionEvaluationException(Throwable cause) {
-            super(cause);
-        }
-    }
-
-    @Override
-    public String toString() {
-        return this.getClass().getSimpleName()+" ("+this.filterEntity.toString()+")";
-    }
-}
\ No newline at end of file


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