| package org.apache.maven.shared.invoker; |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| /** |
| * A logger used by {@link Invoker} instances to output diagnostic messages. |
| * |
| * @see Invoker#setLogger(InvokerLogger) |
| * @author <a href="mailto:jason@maven.org">Jason van Zyl</a> |
| * @version $Id$ |
| */ |
| public interface InvokerLogger |
| { |
| |
| /** |
| * The threshold for debug output. |
| */ |
| int DEBUG = 4; |
| |
| /** |
| * The threshold for info output. |
| */ |
| int INFO = 3; |
| |
| /** |
| * The threshold for warn output. |
| */ |
| int WARN = 2; |
| |
| /** |
| * The threshold for error output. |
| */ |
| int ERROR = 1; |
| |
| /** |
| * The threshold for fatal error output. |
| */ |
| int FATAL = 0; |
| |
| /** |
| * Logs the specified debug message. |
| * |
| * @param message The message to log, may be <code>null</code>. |
| */ |
| void debug( String message ); |
| |
| /** |
| * Logs the specified debug message and the accompanying exception. |
| * |
| * @param message The message to log, may be <code>null</code>. |
| * @param throwable The exception to log, may be <code>null</code>. |
| */ |
| void debug( String message, Throwable throwable ); |
| |
| /** |
| * Tests whether debug output is enabled for this logger. |
| * |
| * @return <code>true</code> if messages with priority "debug" or above are logged, <code>false</code> |
| * otherwise. |
| */ |
| boolean isDebugEnabled(); |
| |
| /** |
| * Logs the specified info message. |
| * |
| * @param message The message to log, may be <code>null</code>. |
| */ |
| void info( String message ); |
| |
| /** |
| * Logs the specified info message and the accompanying exception. |
| * |
| * @param message The message to log, may be <code>null</code>. |
| * @param throwable The exception to log, may be <code>null</code>. |
| */ |
| void info( String message, Throwable throwable ); |
| |
| /** |
| * Tests whether info output is enabled for this logger. |
| * |
| * @return <code>true</code> if messages with priority "info" or above are logged, <code>false</code> otherwise. |
| */ |
| boolean isInfoEnabled(); |
| |
| /** |
| * Logs the specified warning message. |
| * |
| * @param message The message to log, may be <code>null</code>. |
| */ |
| void warn( String message ); |
| |
| /** |
| * Logs the specified warning message and the accompanying exception. |
| * |
| * @param message The message to log, may be <code>null</code>. |
| * @param throwable The exception to log, may be <code>null</code>. |
| */ |
| void warn( String message, Throwable throwable ); |
| |
| /** |
| * Tests whether warn output is enabled for this logger. |
| * |
| * @return <code>true</code> if messages with priority "warn" or above are logged, <code>false</code> otherwise. |
| */ |
| boolean isWarnEnabled(); |
| |
| /** |
| * Logs the specified error message. |
| * |
| * @param message The message to log, may be <code>null</code>. |
| */ |
| void error( String message ); |
| |
| /** |
| * Logs the specified error message and the accompanying exception. |
| * |
| * @param message The message to log, may be <code>null</code>. |
| * @param throwable The exception to log, may be <code>null</code>. |
| */ |
| void error( String message, Throwable throwable ); |
| |
| /** |
| * Tests whether error output is enabled for this logger. |
| * |
| * @return <code>true</code> if messages with priority "error" or above are logged, <code>false</code> |
| * otherwise. |
| */ |
| boolean isErrorEnabled(); |
| |
| /** |
| * Logs the specified fatal error message. |
| * |
| * @param message The message to log, may be <code>null</code>. |
| */ |
| void fatalError( String message ); |
| |
| /** |
| * Logs the specified fatal error message and the accompanying exception. |
| * |
| * @param message The message to log, may be <code>null</code>. |
| * @param throwable The exception to log, may be <code>null</code>. |
| */ |
| void fatalError( String message, Throwable throwable ); |
| |
| /** |
| * Tests whether fatal error output is enabled for this logger. |
| * |
| * @return <code>true</code> if messages with priority "fatal" or above are logged, <code>false</code> |
| * otherwise. |
| */ |
| boolean isFatalErrorEnabled(); |
| |
| /** |
| * Sets the logger's threshold. |
| * |
| * @param threshold The logger's threshold, must be one of {@link #DEBUG}, {@link #INFO}, {@link #WARN}, |
| * {@link #ERROR} and {@link #FATAL}. |
| */ |
| void setThreshold( int threshold ); |
| |
| /** |
| * Gets the logger's threshold. |
| * |
| * @return The logger's threshold, one of {@link #DEBUG}, {@link #INFO}, {@link #WARN}, {@link #ERROR} and |
| * {@link #FATAL}. |
| */ |
| int getThreshold(); |
| |
| } |