| /* |
| * 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.vxquery.runtime.functions.index; |
| |
| import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException; |
| import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator; |
| import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory; |
| import org.apache.hyracks.api.context.IHyracksTaskContext; |
| import org.apache.hyracks.data.std.api.IPointable; |
| import org.apache.hyracks.data.std.primitive.UTF8StringPointable; |
| import org.apache.hyracks.data.std.util.ArrayBackedValueStorage; |
| import org.apache.hyracks.dataflow.common.comm.util.ByteBufferInputStream; |
| import org.apache.vxquery.datamodel.accessors.TaggedValuePointable; |
| import org.apache.vxquery.datamodel.builders.sequence.SequenceBuilder; |
| import org.apache.vxquery.datamodel.values.XDMConstants; |
| import org.apache.vxquery.exceptions.ErrorCode; |
| import org.apache.vxquery.exceptions.SystemException; |
| import org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentScalarEvaluator; |
| import org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentScalarEvaluatorFactory; |
| import org.apache.vxquery.xmlparser.ITreeNodeIdProvider; |
| import org.apache.vxquery.xmlparser.TreeNodeIdProvider; |
| |
| import javax.xml.bind.JAXBException; |
| import java.io.DataInputStream; |
| |
| public class IndexConstructorScalarEvaluatorFactory extends AbstractTaggedValueArgumentScalarEvaluatorFactory { |
| //Creates one Lucene doc per file |
| |
| private static final long serialVersionUID = 1L; |
| |
| public IndexConstructorScalarEvaluatorFactory(IScalarEvaluatorFactory[] args) { |
| super(args); |
| } |
| |
| @Override |
| protected IScalarEvaluator createEvaluator(IHyracksTaskContext ctx, IScalarEvaluator[] args) |
| throws AlgebricksException { |
| final ArrayBackedValueStorage abvs = new ArrayBackedValueStorage(); |
| final UTF8StringPointable stringp = (UTF8StringPointable) UTF8StringPointable.FACTORY.createPointable(); |
| final TaggedValuePointable nodep = (TaggedValuePointable) TaggedValuePointable.FACTORY.createPointable(); |
| final ByteBufferInputStream bbis = new ByteBufferInputStream(); |
| final DataInputStream di = new DataInputStream(bbis); |
| final SequenceBuilder sb = new SequenceBuilder(); |
| final ArrayBackedValueStorage abvsFileNode = new ArrayBackedValueStorage(); |
| final int partition = ctx.getTaskAttemptId().getTaskId().getPartition(); |
| final String nodeId = ctx.getJobletContext().getApplicationContext().getNodeId(); |
| final ITreeNodeIdProvider nodeIdProvider = new TreeNodeIdProvider((short) partition); |
| |
| return new AbstractTaggedValueArgumentScalarEvaluator(args) { |
| |
| @Override |
| protected void evaluate(TaggedValuePointable[] args, IPointable result) throws SystemException { |
| try { |
| IndexConstructorUtil |
| .evaluate(args, result, stringp, bbis, di, sb, abvs, nodeIdProvider, abvsFileNode, |
| nodep, false, nodeId); |
| XDMConstants.setTrue(result); |
| } catch (JAXBException e) { |
| throw new SystemException(ErrorCode.SYSE0001, e); |
| } |
| } |
| |
| }; |
| } |
| } |