| /* |
| * Copyright (c) 2013 DataTorrent, Inc. ALL Rights Reserved. |
| * |
| * Licensed 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 com.datatorrent.lib.math; |
| |
| import com.datatorrent.api.DefaultOutputPort; |
| import org.xml.sax.InputSource; |
| |
| import java.io.StringReader; |
| import java.util.List; |
| |
| /** |
| * 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); |
| } |
| } |
| } |