1 /* 2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package sun.misc; 27 28 import java.net.InetAddress; 29 30 /** 31 * Utility class that can be used to trace I/O calls. 32 */ 33 public final class IoTrace { 34 private IoTrace() { } 35 36 private static IoTraceListener listener = null; 37 38 public static void setListener(IoTraceListener l) { 39 listener = l; 40 } 41 42 // Socket Read 43 public static Object socketReadBegin(InetAddress address, int port, int timeout) { 44 IoTraceListener l = listener; 45 if (l != null) { 46 return l.socketReadBegin(address, port, timeout); 47 } 48 return null; 49 } 50 public static void socketReadEnd(Object handle, long bytesRead) { 51 IoTraceListener l = listener; 52 if (l != null) { 53 l.socketReadEnd(handle, bytesRead); 54 } 55 } 56 57 // Socket Write 58 public static Object socketWriteBegin(InetAddress address, int port) { 59 IoTraceListener l = listener; 60 if (l != null) { 61 return l.socketWriteBegin(address, port); 62 } 63 return null; 64 } 65 public static void socketWriteEnd(Object handle, long bytesRead) { 66 IoTraceListener l = listener; 67 if (l != null) { 68 l.socketWriteEnd(handle, bytesRead); 69 } 70 } 71 72 // File Read 73 public static Object fileReadBegin(String path) { 74 IoTraceListener l = listener; 75 if (l != null) { 76 return l.fileReadBegin(path); 77 } 78 return null; 79 } 80 public static void fileReadEnd(Object handle, long bytesRead) { 81 IoTraceListener l = listener; 82 if (l != null) { 83 l.fileReadEnd(handle, bytesRead); 84 } 85 } 86 87 // File Write 88 public static Object fileWriteBegin(String path) { 89 IoTraceListener l = listener; 90 if (l != null) { 91 return l.fileWriteBegin(path); 92 } 93 return null; 94 } 95 public static void fileWriteEnd(Object handle, long bytesWritten) { 96 IoTraceListener l = listener; 97 if (l != null) { 98 l.fileWriteEnd(handle, bytesWritten); 99 } 100 } 101 }