| /* Copyright 2004 The Apache Software Foundation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.xmlbeans.impl.common; |
| |
| import java.io.File; |
| import java.io.PrintStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| |
| public class XBeanDebug |
| { |
| public static final int TRACE_SCHEMA_LOADING = 0x0001; |
| public static final String traceProp = "org.apache.xmlbeans.impl.debug"; |
| public static final String defaultProp = ""; // "TRACE_SCHEMA_LOADING"; |
| |
| private static int _enabled = initializeBitsFromProperty(); |
| private static int _indent = 0; |
| private static String _indentspace = " "; |
| |
| private static int initializeBitsFromProperty() |
| { |
| int bits = 0; |
| String prop = System.getProperty(traceProp, defaultProp); |
| if (prop.indexOf("TRACE_SCHEMA_LOADING") >= 0) |
| bits |= TRACE_SCHEMA_LOADING; |
| return bits; |
| } |
| public static void enable(int bits) |
| { |
| _enabled = _enabled | bits; |
| } |
| |
| public static void disable(int bits) |
| { |
| _enabled = _enabled & ~bits; |
| } |
| |
| public static void trace(int bits, String message, int indent) |
| { |
| if (test(bits)) |
| { |
| synchronized (XBeanDebug.class) |
| { |
| if (indent < 0) |
| _indent += indent; |
| |
| String spaces = _indent < 0 ? "" : _indent > _indentspace.length() ? _indentspace : _indentspace.substring(0, _indent); |
| String logmessage = Thread.currentThread().getName() + ": " + spaces + message + "\n"; |
| System.err.print(logmessage); |
| |
| if (indent > 0) |
| _indent += indent; |
| } |
| } |
| } |
| |
| public static boolean test(int bits) |
| { |
| return (_enabled & bits) != 0; |
| } |
| |
| static PrintStream _err; |
| |
| public static String log(String message) |
| { |
| log(message, null); |
| return message; |
| } |
| |
| public static String logStackTrace(String message) |
| { |
| log(message, new Throwable()); |
| return message; |
| } |
| |
| private synchronized static String log(String message, Throwable stackTrace) |
| { |
| if (_err == null) |
| { |
| try |
| { |
| File diagnosticFile = File.createTempFile("xmlbeandebug", ".log"); |
| _err = new PrintStream(new FileOutputStream(diagnosticFile)); |
| System.err.println("Diagnostic XML Bean debug log file created: " + diagnosticFile); |
| } |
| catch (IOException e) |
| { |
| _err = System.err; |
| } |
| } |
| _err.println(message); |
| if (stackTrace != null) |
| { |
| stackTrace.printStackTrace(_err); |
| } |
| return message; |
| } |
| |
| public static Throwable logException(Throwable t) |
| { |
| log(t.getMessage(), t); |
| return t; |
| } |
| } |