Mercurial > hg > graal-compiler

annotate mxtool/URLConnectionDownload.java @ 16755:bd28da642eea

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Truffle-DSL: Several new features implemented: Implementation of a new code generation layout which shares code between generated nodes. Declaration order of specializations is now used as specialization order. Specializations do no longer perform fallthrough on respecialization, they now always respecialize from the first specialization. Implemented support for contains relations between specializations. Improved reachability error messages. Preliminary support for @Implies.
author Christian Humer <christian.humer@gmail.com>
date Mon, 11 Aug 2014 15:53:05 +0200
parents 2022366b513c
children 3152f72f5cda
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1 /*
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2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 import java.io.*;
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24 import java.net.*;
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25 import java.util.*;
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26 import java.util.regex.*;
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27
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28 /**
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29 * Downloads content from a given URL to a given file.
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30 *
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31 * @param path where to write the content
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32 * @param urls the URLs to try, stopping after the first successful one
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33 */
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34 public class URLConnectionDownload {
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35
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36 /**
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37 * Downloads content from a given URL to a given file.
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38 *
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39 * @param args
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40 * arg[0] is the path where to write the content. The remainder
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41 * of args are the URLs to try, stopping after the first
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42 * successful one
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43 */
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44 public static void main(String[] args) {
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45 File path = new File(args[0]);
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46 boolean verbose = args[1].equals("-v");
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47 int offset = verbose ? 2 : 1;
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48 String[] urls = new String[args.length - offset];
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49 System.arraycopy(args, offset, urls, 0, urls.length);
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50
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51 File parent = path.getParentFile();
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52 makeDirectory(parent);
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53
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54 // Enable use of system proxies
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55 System.setProperty("java.net.useSystemProxies", "true");
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56
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57 String proxy = System.getenv("HTTP_PROXY");
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58 if (proxy == null) {
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59 proxy = System.getenv("http_proxy");
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60 }
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61
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62 String proxyMsg = "";
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63 if (proxy != null) {
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64 Pattern p = Pattern.compile("(?:http://)?([^:]+)(:\\d+)?");
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65 Matcher m = p.matcher(proxy);
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66 if (m.matches()) {
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67 String host = m.group(1);
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68 String port = m.group(2);
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69 System.setProperty("http.proxyHost", host);
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70 if (port != null) {
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71 port = port.substring(1); // strip ':'
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72 System.setProperty("http.proxyPort", port);
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73 }
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74 proxyMsg = " via proxy " + proxy;
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75 } else {
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76 System.err.println("Value of HTTP_PROXY is not valid: " + proxy);
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77 }
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78 } else {
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79 System.err.println("** If behind a firewall without direct internet access, use the HTTP_PROXY environment variable (e.g. 'env HTTP_PROXY=proxy.company.com:80 max ...') or download manually with a web browser.");
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80 }
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81
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82 for (String s : urls) {
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83 try {
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84 System.err.println("Downloading " + s + " to " + path + proxyMsg);
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85 URL url = new URL(s);
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86 URLConnection conn = url.openConnection();
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87 // 10 second timeout to establish connection
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88 conn.setConnectTimeout(10000);
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89 InputStream in = conn.getInputStream();
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90 int size = conn.getContentLength();
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91 FileOutputStream out = new FileOutputStream(path);
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92 int read = 0;
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93 byte[] buf = new byte[8192];
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94 int n = 0;
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95 while ((read = in.read(buf)) != -1) {
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96 n += read;
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97 if (verbose) {
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98 long percent = ((long) n * 100 / size);
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99 System.err.print("\r " + n + " bytes " + (size == -1 ? "" : " (" + percent + "%)"));
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100 }
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101 out.write(buf, 0, read);
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102 }
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103 System.err.println();
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104 out.close();
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105 in.close();
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106 return;
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107 } catch (MalformedURLException e) {
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108 throw new Error("Error in URL " + s, e);
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109 } catch (IOException e) {
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110 System.err.println("Error reading from " + s + ": " + e);
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111 path.delete();
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112 }
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113 }
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114 throw new Error("Could not download content to " + path + " from " + Arrays.toString(urls));
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115 }
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116
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117 private static void makeDirectory(File directory) {
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118 if (!directory.exists() && !directory.mkdirs()) {
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119 throw new Error("Could not make directory " + directory);
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120 }
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121 }
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122 }
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123