jaroslav@114: /**
jaroslav@114:  * Back 2 Browser Bytecode Translator
jaroslav@114:  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
jaroslav@114:  *
jaroslav@114:  * This program is free software: you can redistribute it and/or modify
jaroslav@114:  * it under the terms of the GNU General Public License as published by
jaroslav@114:  * the Free Software Foundation, version 2 of the License.
jaroslav@114:  *
jaroslav@114:  * This program is distributed in the hope that it will be useful,
jaroslav@114:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
jaroslav@114:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
jaroslav@114:  * GNU General Public License for more details.
jaroslav@114:  *
jaroslav@114:  * You should have received a copy of the GNU General Public License
jaroslav@114:  * along with this program. Look for COPYING file in the top folder.
jaroslav@114:  * If not, see http://opensource.org/licenses/GPL-2.0.
jaroslav@114:  */
jaroslav@114: package org.apidesign.vm4brwsr;
jaroslav@114: 
jaroslav@181: import java.io.IOException;
jaroslav@1493: import java.io.InputStream;
jaroslav@1497: import java.net.URL;
jaroslav@1497: import java.util.Enumeration;
jaroslav@1587: import net.java.html.js.JavaScriptBody;
jaroslav@1587: import net.java.html.js.JavaScriptResource;
jaroslav@181: 
jaroslav@114: /**
jaroslav@114:  *
jaroslav@114:  * @author Jaroslav Tulach <jtulach@netbeans.org>
jaroslav@114:  */
jaroslav@1587: @JavaScriptResource("obj.js")
jaroslav@1493: public class Resources {
jaroslav@1587:     @JavaScriptBody(args = {}, body = "return obj;")
jaroslav@1587:     static Object retObj() {
jaroslav@1587:         return null;
jaroslav@1587:     }
jaroslav@1587:     
jaroslav@1587:     public static boolean isObj() {
jaroslav@1587:         return retObj() != null;
jaroslav@1587:     }
jaroslav@1587:     public static boolean isResource() {
jaroslav@1587:         return Resources.class.getResource("obj.js") != null;
jaroslav@1587:     }
jaroslav@1587:     
jaroslav@1493:     public static String loadKO() throws IOException {
jaroslav@1493:         InputStream is = Resources.class.getResourceAsStream("ko.js");
jaroslav@1497:         return readIS(is, false);
jaroslav@1497:     }
jaroslav@1497:     
jaroslav@1497:     static String loadClazz() throws IOException {
jaroslav@1707:         Object o = new Resources();
jaroslav@1707:         InputStream is = o.getClass().getResourceAsStream("Bck2BrwsrToolkit.class");
jaroslav@1497:         return readIS(is, false);
jaroslav@1497:     }
jaroslav@1497: 
jaroslav@1497:     private static String readIS(InputStream is, boolean asString) throws IOException {
jaroslav@1493:         if (is == null) {
jaroslav@1493:             return "No resource found!";
jaroslav@1493:         }
jaroslav@1493:         byte[] arr = new byte[4092];
jaroslav@1493:         int len = is.read(arr);
jaroslav@1497:         if (len < 5) {
jaroslav@1497:             return "No data read! Len: " + len;
jaroslav@1493:         }
jaroslav@1497:         
jaroslav@1497:         if (asString) {
jaroslav@1497:             return new String(arr, 0, len, "UTF-8").toString().toString();
jaroslav@1496:         }
jaroslav@1496:         
jaroslav@1496:         StringBuilder sb = new StringBuilder();
jaroslav@1496:         sb.append("[");
jaroslav@1496:         for (int i = 0; i < len; i++) {
jaroslav@1496:             sb.append(arr[i]).append(", ");
jaroslav@1496:         }
jaroslav@1496:         
jaroslav@1496:         return sb.toString().toString();
jaroslav@1496:     }
jaroslav@1462:     static long bytesToLong(byte b1, byte b2, int shift) {
jaroslav@1462:         return (((long)b1 << 56) +
jaroslav@1462:                 ((long)b2 & 255) << 48) >> shift;
jaroslav@1462:     }
jaroslav@1497: 
jaroslav@1558:     public static String loadHello() throws IOException {
jaroslav@1497:         Enumeration<URL> en;
jaroslav@1497:         try {
jaroslav@1497:             en = Resources.class.getClassLoader().getResources("META-INF/ahoj");
jaroslav@1497:         } catch (SecurityException ex) {
jaroslav@1497:             return "SecurityException";
jaroslav@1497:         }
jaroslav@1497:         StringBuilder sb = new StringBuilder();
jaroslav@1497:         while (en.hasMoreElements()) {
jaroslav@1497:             URL url = en.nextElement();
jaroslav@1497:             sb.append(readIS(url.openStream(), true));
jaroslav@1497:         }
jaroslav@1497:         return sb.toString().toString();
jaroslav@1497:     }
jaroslav@1558:     public static String loadJustHello() throws IOException {
jaroslav@1497:         URL url = Resources.class.getResource("/META-INF/ahoj");
jaroslav@1497:         StringBuilder sb = new StringBuilder();
jaroslav@1497:         sb.append(readIS(url.openStream(), true));
jaroslav@1497:         return sb.toString().toString();
jaroslav@1497:     }
jaroslav@114: }