| /** |
| * 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.apex.malhar.lib.math; |
| |
| import java.io.StringReader; |
| import java.util.List; |
| |
| import org.xml.sax.InputSource; |
| |
| import com.datatorrent.api.DefaultOutputPort; |
| |
| /** |
| * An implementation of the AbstractXmlKeyValueCartesianProduct operator that takes in the xml document |
| * as a String input and outputs the cartesian product as Strings. |
| * |
| * @displayName Xml Key Value String Cartesian Product |
| * @category Math |
| * @tags cartesian product, string, xml |
| * @since 1.0.1 |
| */ |
| public class XmlKeyValueStringCartesianProduct extends AbstractXmlKeyValueCartesianProduct<String> |
| { |
| |
| InputSource source = new InputSource(); |
| |
| /** |
| * Output port that emits cartesian product as Strings. |
| */ |
| public final transient DefaultOutputPort<String> output = new DefaultOutputPort<String>(); |
| |
| @Override |
| protected InputSource getInputSource(String tuple) |
| { |
| source.setCharacterStream(new StringReader(tuple)); |
| return source; |
| } |
| |
| @Override |
| protected void processResult(List<String> result, String tuple) |
| { |
| for (String str : result) { |
| output.emit(str); |
| } |
| } |
| } |