tiled.plugins.json.JSONMapWriter.java Source code

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Here is the source code for tiled.plugins.json.JSONMapWriter.java

Source

/*
 *  Tiled Map Editor, (c) 2004-2006
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  JSON map writer contributed by
 *  Nader Akhres <nader.akhres@laposte.net>
 */

package tiled.plugins.json;

import java.io.*;

import org.json.XML;

import tiled.core.Map;
import tiled.core.TileSet;
import tiled.io.MapReader;
import tiled.io.MapWriter;
import tiled.io.xml.XMLMapWriter;

/**
 * @version $Id$
 */
public class JSONMapWriter extends XMLMapWriter implements MapWriter {
    public JSONMapWriter() {
        // TODO Auto-generated constructor stub
    }

    /**
     * this method write a map OR a tileset in json format
     *
     * @param map
     * @param set
     * @param filename
     * @throws Exception
     */
    private void writeMapOrTileset(Map map, TileSet set, String filename) throws Exception {

        // Create a temporary file
        File tempFile = File.createTempFile("tiled_json_", ".tmx");

        // Write in this temp file an xml content (tmx format)
        if (map != null) {
            super.writeMap(map, tempFile.getAbsolutePath());
        } else {
            if (set != null) {
                super.writeTileset(set, tempFile.getAbsolutePath()); //write in this temp file an xml content (tmx format)
            } else
                return;
        }

        tempFile = new File(tempFile.getAbsolutePath()); //TODO useful?

        // Now read this temp file and get the tmx content
        int fileSize = 100000; //TODO Replace here by true file size //(int) tempFile.length(); //100000;
        char[] TMXContent = new char[fileSize];

        FileReader fileR = new FileReader(tempFile.getAbsolutePath());
        fileR.read(TMXContent);
        fileR.close();

        // Avoid retrieving xml header like <?xml version=\"1.0\"?>, JSON parser doesn't like it!
        String TMXContentString = new String(TMXContent).trim().replaceFirst("\\<\\?.*\\?\\>", "");

        System.out.println("temp file path=" + tempFile.getAbsolutePath());
        System.out.println("filesize=" + fileSize);
        System.out.println("content=" + TMXContentString);

        // Delete useless temp file
        tempFile.delete();

        // Turn it into JSON format string
        String JSONContent = XML.toJSONObject(TMXContentString).toString(2);

        System.err.println("json content=" + JSONContent);

        // Write in destination file
        FileWriter fileW = new FileWriter(filename);
        fileW.write(JSONContent);
        fileW.flush();
        fileW.close();
    }

    public void writeMap(Map map, String filename) throws Exception {
        writeMapOrTileset(map, null, filename);
    }

    public void writeTileset(TileSet set, String filename) throws Exception {
        writeMapOrTileset(null, set, filename);
    }

    public void writeMap(Map map, OutputStream out) throws Exception {
        super.writeMap(map, out); //not implemented because can't turn into JSON an OutputStream
    }

    public void writeTileset(TileSet set, OutputStream out) throws Exception {
        super.writeTileset(set, out); //not implemented because can't turn into JSON an OutputStream
    }

    /**
     * @see MapReader#getFilter()
     */
    public String getFilter() throws Exception {
        return "*.js,*.js.gz";
    }

    public String getPluginPackage() {
        return "Tiled JSON writer";
    }

    public String getDescription() {
        return "The Tiled JSON format (TMX converted) writer\n" + "\n" + "Nader AKHRES" + "\n for \n"
                + "Tiled Map Editor, (c) 2005\n" + "Adam Turk\n" + "Bjorn Lindeijer";
    }

    public String getName() {
        return "Tiled JSON (TMX converted) map writer";
    }

    public boolean accept(File pathname) {
        try {
            String path = pathname.getCanonicalPath();
            if (path.endsWith(".js") || path.endsWith(".js.gz")) {
                return true;
            }
        } catch (IOException e) {
        }
        return false;
    }
}