com.discursive.jccook.xml.bardsearch.PlayIndexer.java Source code

Introduction

Here is the source code for com.discursive.jccook.xml.bardsearch.PlayIndexer.java

Source

/* 
 * ========================================================================
 * 
 * Copyright 2005 Tim O'Brien.
 *
 * 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.discursive.jccook.xml.bardsearch;

import java.io.File;
import java.io.IOException;
import java.net.URL;

import org.apache.commons.digester.Digester;
import org.apache.commons.digester.xmlrules.DigesterLoader;
import org.apache.log4j.Logger;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.index.IndexWriter;
import org.xml.sax.SAXException;

import com.discursive.jccook.util.LogInit;

public class PlayIndexer {

    private static Logger logger = Logger.getLogger(PlayIndexer.class);
    static {
        LogInit.init();
    }

    private IndexWriter indexWriter;
    private Digester digester;
    private DigestContext context;

    public PlayIndexer(IndexWriter pIndexWriter) {
        indexWriter = pIndexWriter;
    }

    public void init() {
        URL playRules = PlayIndexer.class.getResource("play-digester-rules.xml");
        digester = DigesterLoader.createDigester(playRules);
        digester.setValidating(false);
    }

    public void index(File playXml) throws IOException, SAXException {
        context = new DigestContext();
        digester.push(context);
        digester.parse(playXml);
        logger.info("Parsed: " + playXml.getAbsolutePath());
    }

    public void processSpeech() {
        Document doc = new Document();
        doc.add(Field.Text("play", context.playTitle));
        doc.add(Field.Text("act", context.actTitle));
        doc.add(Field.Text("scene", context.sceneTitle));
        doc.add(Field.Text("speaker", context.speaker));
        doc.add(Field.Text("speech", context.speech.toString()));
        try {
            indexWriter.addDocument(doc);
        } catch (IOException ioe) {
            logger.error("Unable to add document to index", ioe);
        }
    }

    public class DigestContext {
        File playXmlFile;
        String playTitle, actTitle, sceneTitle, speaker;
        StringBuffer speech = new StringBuffer();

        public void setActTitle(String string) {
            actTitle = string;
        }

        public void setPlayTitle(String string) {
            playTitle = string;
        }

        public void setSceneTitle(String string) {
            sceneTitle = string;
        }

        public void setSpeaker(String string) {
            speaker = string;
        }

        public void appendLine(String pLine) {
            speech.append(pLine);
        }

        public void speechEnd() {
            processSpeech();
            speech.delete(0, speech.length());
            speaker = "";
        }
    }
}