LgTvChannelSet.java

/**
 * Copyright (c) 2010-2016 by the respective copyright holders.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 */
package org.openhab.binding.lgtv.lginteraction;

import java.io.BufferedWriter;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.StringReader;
import java.io.Writer;
import java.util.List;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.PropertyException;
import javax.xml.bind.Unmarshaller;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlElementWrapper;
import javax.xml.bind.annotation.XmlRootElement;

import org.openhab.binding.lgtv.internal.LgtvConnection;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * XML Wrapper for the XML Channel List of LGTV
 *
 * @author Martin Fluch
 * @since 1.6.0
 */
public class LgTvChannelSet {

    private static Logger logger = LoggerFactory.getLogger(LgtvConnection.class);

    @XmlRootElement(name = "envelope")
    @XmlAccessorType(XmlAccessType.FIELD)
    public static class envelope {

        @XmlElementWrapper(name = "dataList")
        @XmlElement(name = "data")
        private List<onechannel> channels;

        public List<onechannel> getList() {
            return channels;
        }

        public onechannel find(int major) {
            onechannel found = null;

            for (onechannel e : channels) {
                if (e.major == major) {
                    found = e;
                }
            }

            return found;

        }

        public int size() {
            return channels.size();
        }

    }

    @XmlAccessorType(XmlAccessType.FIELD)
    public static class onechannel {
        @XmlElement(name = "chtype")
        private String chtype;

        @XmlElement(name = "major")
        private int major;

        @XmlElement(name = "minor")
        private int minor;

        @XmlElement(name = "sourceIndex")
        private int sourceindex;

        @XmlElement(name = "physicalNum")
        private int physicalnum;

        @XmlElement(name = "chname")
        private String chname;

        public int getmajor() {
            return major;
        }

        public int getminor() {
            return minor;
        }

        public int getsourceindex() {
            return sourceindex;
        }

        public int getphysicalnum() {
            return physicalnum;
        }
    }

    private envelope envel;

    public int getsize() {
        if (envel != null && envel.channels != null) {
            return envel.channels.size();
        } else {
            return 0;
        }
    }

    /**
     * Load Channels from s into List
     * 
     * @param s
     * @throws JAXBException
     */
    public void loadchannels(String s) throws JAXBException {

        JAXBContext jc;
        jc = JAXBContext.newInstance(envelope.class);
        Unmarshaller unmarshaller = jc.createUnmarshaller();
        int start = s.indexOf("<envelope>");
        int stop = s.indexOf("</envelope>") + "</envelope>".length();
        String t = s.substring(start, stop);
        StringReader reader = new StringReader(t);
        envel = null;

        envel = (envelope) unmarshaller.unmarshal(reader);

    }

    /**
     * Save Channel List to File f
     * 
     * @param f
     */
    public void savetofile(String f) {
        Writer writer = null;
        JAXBContext jc;
        try {
            jc = JAXBContext.newInstance(envelope.class);
            Marshaller marshaller = jc.createMarshaller();

            marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);

            writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(f), "utf-8"));
            marshaller.marshal(envel, writer);
        } catch (PropertyException e) {
            logger.error("error in savetofile", e);
        } catch (JAXBException e) {
            logger.error("error in savetofile", e);
        } catch (IOException ex) {
            logger.error("error in savetofile", ex);
        } finally {
            try {
                writer.close();
            } catch (Exception ex) {
            }
        }

    }

    public envelope getenvel() {
        return envel;
    }

}