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