J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2000-2006 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | |
| 27 | package java.util.logging; |
| 28 | |
| 29 | import java.io.*; |
| 30 | import java.text.*; |
| 31 | import java.util.Date; |
| 32 | |
| 33 | /** |
| 34 | * Print a brief summary of the LogRecord in a human readable |
| 35 | * format. The summary will typically be 1 or 2 lines. |
| 36 | * |
| 37 | * @since 1.4 |
| 38 | */ |
| 39 | |
| 40 | public class SimpleFormatter extends Formatter { |
| 41 | |
| 42 | Date dat = new Date(); |
| 43 | private final static String format = "{0,date} {0,time}"; |
| 44 | private MessageFormat formatter; |
| 45 | |
| 46 | private Object args[] = new Object[1]; |
| 47 | |
| 48 | // Line separator string. This is the value of the line.separator |
| 49 | // property at the moment that the SimpleFormatter was created. |
| 50 | private String lineSeparator = java.security.AccessController.doPrivileged( |
| 51 | new sun.security.action.GetPropertyAction("line.separator")); |
| 52 | |
| 53 | /** |
| 54 | * Format the given LogRecord. |
| 55 | * <p> |
| 56 | * This method can be overridden in a subclass. |
| 57 | * It is recommended to use the {@link Formatter#formatMessage} |
| 58 | * convenience method to localize and format the message field. |
| 59 | * |
| 60 | * @param record the log record to be formatted. |
| 61 | * @return a formatted log record |
| 62 | */ |
| 63 | public synchronized String format(LogRecord record) { |
| 64 | StringBuffer sb = new StringBuffer(); |
| 65 | // Minimize memory allocations here. |
| 66 | dat.setTime(record.getMillis()); |
| 67 | args[0] = dat; |
| 68 | StringBuffer text = new StringBuffer(); |
| 69 | if (formatter == null) { |
| 70 | formatter = new MessageFormat(format); |
| 71 | } |
| 72 | formatter.format(args, text, null); |
| 73 | sb.append(text); |
| 74 | sb.append(" "); |
| 75 | if (record.getSourceClassName() != null) { |
| 76 | sb.append(record.getSourceClassName()); |
| 77 | } else { |
| 78 | sb.append(record.getLoggerName()); |
| 79 | } |
| 80 | if (record.getSourceMethodName() != null) { |
| 81 | sb.append(" "); |
| 82 | sb.append(record.getSourceMethodName()); |
| 83 | } |
| 84 | sb.append(lineSeparator); |
| 85 | String message = formatMessage(record); |
| 86 | sb.append(record.getLevel().getLocalizedName()); |
| 87 | sb.append(": "); |
| 88 | sb.append(message); |
| 89 | sb.append(lineSeparator); |
| 90 | if (record.getThrown() != null) { |
| 91 | try { |
| 92 | StringWriter sw = new StringWriter(); |
| 93 | PrintWriter pw = new PrintWriter(sw); |
| 94 | record.getThrown().printStackTrace(pw); |
| 95 | pw.close(); |
| 96 | sb.append(sw.toString()); |
| 97 | } catch (Exception ex) { |
| 98 | } |
| 99 | } |
| 100 | return sb.toString(); |
| 101 | } |
| 102 | } |