151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski/* 251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Copyright (c) 2004, 2008, Oracle and/or its affiliates. All rights reserved. 351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * This code is free software; you can redistribute it and/or modify it 651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * under the terms of the GNU General Public License version 2 only, as 751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * published by the Free Software Foundation. Oracle designates this 851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * particular file as subject to the "Classpath" exception as provided 951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * by Oracle in the LICENSE file that accompanied this code. 1051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 1151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * This code is distributed in the hope that it will be useful, but WITHOUT 1251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * version 2 for more details (a copy is included in the LICENSE file that 1551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * accompanied this code). 1651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 1751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * You should have received a copy of the GNU General Public License version 1851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 2 along with this work; if not, write to the Free Software Foundation, 1951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 2151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * or visit www.oracle.com if you need additional information or have any 2351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * questions. 2451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 2551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskipackage sun.net; 2651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 2751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskiimport java.io.*; 2851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskiimport java.security.AccessController; 2951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskiimport java.security.PrivilegedAction; 3051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskiimport java.util.Properties; 3151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 3251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski/* 3351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * This class allows for centralized access to Networking properties. 3451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Default values are loaded from the file jre/lib/net.properties 3551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 3651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 3751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @author Jean-Christophe Collet 3851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 3951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 4051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 4151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskipublic class NetProperties { 4251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski static private Properties props = new Properties(); 4351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski static { 4451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski AccessController.doPrivileged( 4551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski new PrivilegedAction<Void>() { 4651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public Void run() { 4751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski loadDefaultProperties(); 4851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return null; 4951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski }}); 5051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 5151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 5251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski private NetProperties() { }; 5351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 5451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 5551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /* 5651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Loads the default networking system properties 5751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * the file is in jre/lib/net.properties 5851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 5951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski static private void loadDefaultProperties() { 6051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski String fname = System.getProperty("java.home"); 6151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski if (fname == null) { 6251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski throw new Error("Can't find java.home ??"); 6351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 6451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski try { 6551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski File f = new File(fname, "lib"); 6651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski f = new File(f, "net.properties"); 6751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski fname = f.getCanonicalPath(); 6851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski InputStream in = new FileInputStream(fname); 6951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski BufferedInputStream bin = new BufferedInputStream(in); 7051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski props.load(bin); 7151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski bin.close(); 7251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } catch (Exception e) { 7351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski // Do nothing. We couldn't find or access the file 7451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski // so we won't have default properties... 7551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 7651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 7751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 7851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 7951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Get a networking system property. If no system property was defined 8051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * returns the default value, if it exists, otherwise returns 8151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * <code>null</code>. 8251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @param key the property name. 8351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @throws SecurityException if a security manager exists and its 8451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * <code>checkPropertiesAccess</code> method doesn't allow access 8551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * to the system properties. 8651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @return the <code>String</code> value for the property, 8751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * or <code>null</code> 8851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 8951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski static public String get(String key) { 9051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski String def = props.getProperty(key); 9151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski try { 9251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return System.getProperty(key, def); 9351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } catch (IllegalArgumentException e) { 9451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } catch (NullPointerException e) { 9551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 9651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return null; 9751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 9851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 9951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 10051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Get an Integer networking system property. If no system property was 10151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * defined returns the default value, if it exists, otherwise returns 10251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * <code>null</code>. 10351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @param key the property name. 10451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @param defval the default value to use if the property is not found 10551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @throws SecurityException if a security manager exists and its 10651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * <code>checkPropertiesAccess</code> method doesn't allow access 10751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * to the system properties. 10851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @return the <code>Integer</code> value for the property, 10951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * or <code>null</code> 11051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 11151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski static public Integer getInteger(String key, int defval) { 11251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski String val = null; 11351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 11451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski try { 11551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski val = System.getProperty(key, props.getProperty(key)); 11651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } catch (IllegalArgumentException e) { 11751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } catch (NullPointerException e) { 11851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 11951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 12051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski if (val != null) { 12151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski try { 12251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return Integer.decode(val); 12351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } catch (NumberFormatException ex) { 12451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 12551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 12651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return new Integer(defval); 12751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 12851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 12951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 13051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Get a Boolean networking system property. If no system property was 13151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * defined returns the default value, if it exists, otherwise returns 13251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * <code>null</code>. 13351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @param key the property name. 13451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @throws SecurityException if a security manager exists and its 13551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * <code>checkPropertiesAccess</code> method doesn't allow access 13651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * to the system properties. 13751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @return the <code>Boolean</code> value for the property, 13851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * or <code>null</code> 13951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 14051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski static public Boolean getBoolean(String key) { 14151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski String val = null; 14251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 14351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski try { 14451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski val = System.getProperty(key, props.getProperty(key)); 14551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } catch (IllegalArgumentException e) { 14651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } catch (NullPointerException e) { 14751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 14851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 14951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski if (val != null) { 15051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski try { 15151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return Boolean.valueOf(val); 15251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } catch (NumberFormatException ex) { 15351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 15451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 15551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return null; 15651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 15751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 15851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski} 159