Mercurial > hg > graal-compiler
view mxtool/URLConnectionDownload.java @ 12487:28d7a11ba008
revert attempt to avoid Eclipse build loops
"We need a way the refresh the created jar file in Eclipse. Doing it directly in Jar.launch does not work for some reasons I still do not completely understand. So Refresh.launch is the workaround for that problem. Unfortunately the Refresh.launch needs to be async and that causes the well known build loop. Setting the Refresh.launch not to be async does sadly not help." -Christian Humer
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 18 Oct 2013 17:00:52 +0200 |
parents | db072eec897e |
children | 2022366b513c |
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/* * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ import java.io.*; import java.net.*; import java.util.*; import java.util.regex.*; /** * Downloads content from a given URL to a given file. * * @param path where to write the content * @param urls the URLs to try, stopping after the first successful one */ public class URLConnectionDownload { /** * Downloads content from a given URL to a given file. * * @param args * arg[0] is the path where to write the content. The remainder * of args are the URLs to try, stopping after the first * successful one */ public static void main(String[] args) { File path = new File(args[0]); String[] urls = new String[args.length - 1]; System.arraycopy(args, 1, urls, 0, urls.length); File parent = path.getParentFile(); makeDirectory(parent); // Enable use of system proxies System.setProperty("java.net.useSystemProxies", "true"); String proxy = System.getenv("HTTP_PROXY"); if (proxy == null) { proxy = System.getenv("http_proxy"); } String proxyMsg = ""; if (proxy != null) { Pattern p = Pattern.compile("(?:http://)?([^:]+)(:\\d+)?"); Matcher m = p.matcher(proxy); if (m.matches()) { String host = m.group(1); String port = m.group(2); System.setProperty("http.proxyHost", host); if (port != null) { port = port.substring(1); // strip ':' System.setProperty("http.proxyPort", port); } proxyMsg = " via proxy " + proxy; } else { System.err.println("Value of HTTP_PROXY is not valid: " + proxy); } } else { 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."); } for (String s : urls) { try { System.err.println("Downloading " + s + " to " + path + proxyMsg); URL url = new URL(s); URLConnection conn = url.openConnection(); // 10 second timeout to establish connection conn.setConnectTimeout(10000); InputStream in = conn.getInputStream(); int size = conn.getContentLength(); FileOutputStream out = new FileOutputStream(path); int read = 0; byte[] buf = new byte[8192]; int n = 0; while ((read = in.read(buf)) != -1) { n += read; long percent = ((long) n * 100 / size); System.err.print("\r " + n + " bytes " + (size == -1 ? "" : " (" + percent + "%)")); out.write(buf, 0, read); } System.err.println(); out.close(); in.close(); return; } catch (MalformedURLException e) { throw new Error("Error in URL " + s, e); } catch (IOException e) { System.err.println("Error reading from " + s + ": " + e); path.delete(); } } throw new Error("Could not download content to " + path + " from " + Arrays.toString(urls)); } private static void makeDirectory(File directory) { if (!directory.exists() && !directory.mkdirs()) { throw new Error("Could not make directory " + directory); } } }