2 * Back 2 Browser Bytecode Translator
3 * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, version 2 of the License.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. Look for COPYING file in the top folder.
16 * If not, see http://opensource.org/licenses/GPL-2.0.
20 import java.io.BufferedOutputStream;
21 import java.io.ByteArrayInputStream;
22 import java.io.IOException;
23 import java.io.InputStream;
24 import java.io.OutputStream;
25 import java.io.PrintStream;
26 import java.util.Properties;
27 import org.apidesign.bck2brwsr.core.JavaScriptBody;
29 /** Poor man's re-implementation of most important System methods.
31 * @author Jaroslav Tulach <jtulach@netbeans.org>
37 public static void arraycopy(Object value, int srcBegin, Object dst, int dstBegin, int count) {
38 org.apidesign.bck2brwsr.emul.lang.System.arraycopy(value, srcBegin, dst, dstBegin, count);
41 public static long currentTimeMillis() {
42 return org.apidesign.bck2brwsr.emul.lang.System.currentTimeMillis();
45 public static long nanoTime() {
46 return org.apidesign.bck2brwsr.emul.lang.System.nanoTime();
50 public static int identityHashCode(Object obj) {
51 return Class.defaultHashCode(obj);
54 public static String getProperty(String name) {
55 if ("os.name".equals(name)) {
61 @JavaScriptBody(args = {}, body = "return (typeof navigator !== 'undefined') ? navigator.userAgent : 'unknown';")
62 private static native String userAgent();
64 public static String getProperty(String key, String def) {
68 public static Properties getProperties() {
69 throw new SecurityException();
72 public static void setProperties(Properties p) {
73 throw new SecurityException();
77 * Returns the system-dependent line separator string. It always
78 * returns the same value - the initial value of the {@linkplain
79 * #getProperty(String) system property} {@code line.separator}.
81 * <p>On UNIX systems, it returns {@code "\n"}; on Microsoft
82 * Windows systems it returns {@code "\r\n"}.
84 public static String lineSeparator() {
88 @JavaScriptBody(args = { "exitCode" }, body = ""
89 + "var xhttp = new XMLHttpRequest();\n"
90 + "xhttp.open('GET', '/?exit=' + exitCode, true);\n"
94 public static void exit(int exitCode) {
97 public final static InputStream in;
99 public final static PrintStream out;
101 public final static PrintStream err;
103 public static void setOut(PrintStream out) {
104 throw new SecurityException();
107 public static void setIn(InputStream in) {
108 throw new SecurityException();
111 public static void setErr(PrintStream err) {
112 throw new SecurityException();
116 in = new ByteArrayInputStream(new byte[0]);
117 out = new PrintStream(new BufferedOutputStream(new SystemStream("log")));
118 err = new PrintStream(new BufferedOutputStream(new SystemStream("warn")));
121 private static final class SystemStream extends OutputStream {
122 private final String method;
124 public SystemStream(String method) {
125 this.method = method;
129 public void write(byte b[], int off, int len) throws IOException {
130 write(method, new String(b, off, len, "UTF-8"));
133 @JavaScriptBody(args = { "method", "b" }, body = "if (typeof console !== 'undefined') console[method](b.toString());")
134 private static native void write(String method, String b);
137 public void write(int b) throws IOException {
138 write(new byte[] { (byte)b });
140 } // end of SystemStream