| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.phoenix.hive; |
| |
| import com.google.common.base.Function; |
| import com.google.common.collect.Lists; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hive.serde.serdeConstants; |
| import org.apache.hadoop.hive.serde2.AbstractSerDe; |
| import org.apache.hadoop.hive.serde2.SerDeException; |
| import org.apache.hadoop.hive.serde2.SerDeStats; |
| import org.apache.hadoop.hive.serde2.lazy.LazySerDeParameters; |
| import org.apache.hadoop.hive.serde2.lazy.objectinspector.LazyObjectInspectorFactory; |
| import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector; |
| import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorFactory.ObjectInspectorOptions; |
| import org.apache.hadoop.hive.serde2.typeinfo.TypeInfo; |
| import org.apache.hadoop.hive.serde2.typeinfo.TypeInfoUtils; |
| import org.apache.hadoop.io.Writable; |
| import org.apache.phoenix.hive.PhoenixSerializer.DmlType; |
| import org.apache.phoenix.hive.constants.PhoenixStorageHandlerConstants; |
| import org.apache.phoenix.hive.mapreduce.PhoenixResultWritable; |
| import org.apache.phoenix.hive.objectinspector.PhoenixObjectInspectorFactory; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.Properties; |
| |
| /** |
| * SerDe implementation for Phoenix Hive Storage |
| * |
| */ |
| public class PhoenixSerDe extends AbstractSerDe { |
| |
| public static final Log LOG = LogFactory.getLog(PhoenixSerDe.class); |
| |
| private PhoenixSerializer serializer; |
| private ObjectInspector objectInspector; |
| |
| private LazySerDeParameters serdeParams; |
| private PhoenixRow row; |
| |
| private Properties tableProperties; |
| |
| /** |
| * @throws SerDeException |
| */ |
| public PhoenixSerDe() throws SerDeException { |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("PhoenixSerDe created"); |
| } |
| } |
| |
| @Override |
| public void initialize(Configuration conf, Properties tbl) throws SerDeException { |
| tableProperties = tbl; |
| |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("SerDe initialize : " + tbl.getProperty("name")); |
| } |
| |
| serdeParams = new LazySerDeParameters(conf, tbl, getClass().getName()); |
| objectInspector = createLazyPhoenixInspector(conf, tbl); |
| |
| String inOutWork = tbl.getProperty(PhoenixStorageHandlerConstants.IN_OUT_WORK); |
| if (inOutWork == null) { |
| return; |
| } |
| |
| serializer = new PhoenixSerializer(conf, tbl); |
| row = new PhoenixRow(serdeParams.getColumnNames()); |
| } |
| |
| @Override |
| public Object deserialize(Writable result) throws SerDeException { |
| if (!(result instanceof PhoenixResultWritable)) { |
| throw new SerDeException(result.getClass().getName() + ": expects " + |
| "PhoenixResultWritable!"); |
| } |
| |
| return row.setResultRowMap(((PhoenixResultWritable) result).getResultMap()); |
| } |
| |
| @Override |
| public Class<? extends Writable> getSerializedClass() { |
| return PhoenixResultWritable.class; |
| } |
| |
| @Override |
| public Writable serialize(Object obj, ObjectInspector objInspector) throws SerDeException { |
| try { |
| return serializer.serialize(obj, objInspector, DmlType.NONE); |
| } catch (Exception e) { |
| throw new SerDeException(e); |
| } |
| } |
| |
| @Override |
| public SerDeStats getSerDeStats() { |
| // no support for statistics |
| return null; |
| } |
| |
| public Properties getTableProperties() { |
| return tableProperties; |
| } |
| |
| public LazySerDeParameters getSerdeParams() { |
| return serdeParams; |
| } |
| |
| @Override |
| public ObjectInspector getObjectInspector() throws SerDeException { |
| return objectInspector; |
| } |
| |
| private ObjectInspector createLazyPhoenixInspector(Configuration conf, Properties tbl) throws |
| SerDeException { |
| List<String> columnNameList = Arrays.asList(tbl.getProperty(serdeConstants.LIST_COLUMNS) |
| .split(PhoenixStorageHandlerConstants.COMMA)); |
| List<TypeInfo> columnTypeList = TypeInfoUtils.getTypeInfosFromTypeString(tbl.getProperty |
| (serdeConstants.LIST_COLUMN_TYPES)); |
| |
| List<ObjectInspector> columnObjectInspectors = Lists.newArrayListWithExpectedSize |
| (columnTypeList.size()); |
| |
| for (TypeInfo typeInfo : columnTypeList) { |
| columnObjectInspectors.add(PhoenixObjectInspectorFactory.createObjectInspector |
| (typeInfo, serdeParams)); |
| } |
| |
| return LazyObjectInspectorFactory.getLazySimpleStructObjectInspector(columnNameList, |
| columnObjectInspectors, null, serdeParams.getSeparators()[0], serdeParams, |
| ObjectInspectorOptions.JAVA); |
| } |
| } |