com.mycompany.cassandrajavaclient.XmlParser.java Source code

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Here is the source code for com.mycompany.cassandrajavaclient.XmlParser.java

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/*
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package com.mycompany.cassandrajavaclient;

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringReader;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import java.util.logging.FileHandler;
import java.util.logging.Handler;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.apache.commons.io.input.ReaderInputStream;
import org.w3c.dom.Document;
import org.xml.sax.SAXException;

/**
 *
 * @author eric
 */
public class XmlParser {
    private final Set<IListener> listeners = new HashSet();

    public void connect(IListener listener) {
        listeners.add(listener);
    }

    private void emit(Document document) {
        Iterator<IListener> it = listeners.iterator();
        while (it.hasNext()) {
            IListener listener = it.next();
            listener.onDocumentAvailable(document);
        }
    }

    private void parse(String xmlContent) {
        try {
            final DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            final DocumentBuilder builder = factory.newDocumentBuilder();
            try {
                InputStream inputStream = new BufferedInputStream(
                        new ReaderInputStream(new StringReader(xmlContent)));
                final Document document = builder.parse(inputStream);
                emit(document);
            } catch (SAXException | IOException ex) {
                Logger.getLogger(XmlParser.class.getName()).log(Level.SEVERE, null, ex);
            }
        } catch (ParserConfigurationException ex) {
            Logger.getLogger(XmlParser.class.getName()).log(Level.SEVERE, null, ex);
        }

    }

    public void read(String filename) throws IOException {
        try (BufferedReader br = new BufferedReader(new FileReader(filename))) {
            StringBuilder sb = new StringBuilder();
            String line = br.readLine();
            while (line != null) {
                if (line.contains("<?xml")) {
                    if (sb.length() > 0) {
                        parse(sb.toString());
                        sb.setLength(0);
                    }
                }
                sb.append(line);
                sb.append(System.lineSeparator());
                line = br.readLine();
            }

            if (sb.length() > 0) {
                parse(sb.toString());
            }
        }
    }

    public static void main(String[] args) {
        try {
            Handler handler = new FileHandler();
            Logger.getLogger("Eric").addHandler(handler);
            try {
                String filename = "/home/eric/NetBeansProjects/nickel/echantillon/Arkea/Arkea Sepa fichiers entrants/SCTSE_20160304T054638.XML";
                XmlParser parser = new XmlParser();
                SCTHandler sctHandler = new SCTHandler();
                parser.connect(sctHandler);
                parser.read(filename);
            } catch (IOException ex) {
                Logger.getLogger(XmlParser.class.getName()).log(Level.SEVERE, null, ex);
            }
        } catch (IOException | SecurityException ex) {
            Logger.getLogger(XmlParser.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}