| /* |
| * 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.node; |
| |
| import java.io.IOException; |
| |
| import org.apache.vxquery.datamodel.accessors.TaggedValuePointable; |
| import org.apache.vxquery.datamodel.builders.nodes.CommentNodeBuilder; |
| import org.apache.vxquery.datamodel.builders.nodes.DictionaryBuilder; |
| import org.apache.vxquery.datamodel.values.ValueTag; |
| import org.apache.vxquery.exceptions.ErrorCode; |
| import org.apache.vxquery.exceptions.SystemException; |
| |
| import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator; |
| import org.apache.hyracks.api.context.IHyracksTaskContext; |
| import org.apache.hyracks.data.std.api.IMutableValueStorage; |
| import org.apache.hyracks.data.std.primitive.VoidPointable; |
| |
| public class CommentNodeConstructorScalarEvaluator extends AbstractNodeConstructorScalarEvaluator { |
| private final CommentNodeBuilder cnb; |
| |
| private final VoidPointable vp; |
| |
| public CommentNodeConstructorScalarEvaluator(IHyracksTaskContext ctx, IScalarEvaluator[] args) { |
| super(ctx, args); |
| cnb = new CommentNodeBuilder(); |
| vp = (VoidPointable) VoidPointable.FACTORY.createPointable(); |
| } |
| |
| @Override |
| protected void constructNode(DictionaryBuilder db, TaggedValuePointable[] args, IMutableValueStorage mvs) |
| throws IOException, SystemException { |
| cnb.reset(mvs); |
| TaggedValuePointable arg = args[0]; |
| if (arg.getTag() != ValueTag.XS_UNTYPED_ATOMIC_TAG && arg.getTag() != ValueTag.XS_STRING_TAG) { |
| throw new SystemException(ErrorCode.TODO); |
| } |
| arg.getValue(vp); |
| cnb.setValue(vp); |
| cnb.finish(); |
| } |
| |
| @Override |
| protected boolean createsDictionary() { |
| return false; |
| } |
| } |