| /******************************************************************************* |
| * Copyright (c) 2004, 2008 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.osgi.framework.log; |
| |
| import java.io.*; |
| import org.osgi.framework.FrameworkEvent; |
| |
| /** |
| * The FramworkLog interface. A FrameworkLog implementation is provided by the |
| * FrameworkAdaptor and used by the Framework to log any error messages and |
| * FrameworkEvents of type ERROR. The FrameworkLog may persist the log messages |
| * to the filesystem or allow other ways of accessing the log information. |
| * @since 3.1 |
| * @noimplement This interface is not intended to be implemented by clients. |
| */ |
| public interface FrameworkLog { |
| /** |
| * A service lookup constant (value "performance") indicating an |
| * implementation of the logging service that logs performance events. |
| * Create a filter with this property set to <code>"true"</code> in order to |
| * obtain a performance log. |
| * |
| * @since 3.1 |
| */ |
| public static final String SERVICE_PERFORMANCE = "performance"; //$NON-NLS-1$ |
| |
| /** |
| * Logs the information from a FrameworkEvent to the FrameworkLog. |
| * @param frameworkEvent The FrameworkEvent to log. |
| */ |
| public void log(FrameworkEvent frameworkEvent); |
| |
| /** |
| * Logs the FrameworkLogEntry to the FrameworkLog |
| * @param logEntry The entry to log. |
| */ |
| public void log(FrameworkLogEntry logEntry); |
| |
| /** |
| * Sets the current Writer used to log messages to the specified |
| * newWriter. If append is set to true then the content |
| * of the current Writer will be appended to the new Writer |
| * if possible. |
| * @param newWriter The Writer to use for logging messages. |
| * @param append Indicates whether the content of the current Writer |
| * used for logging messages should be appended to the end of the new |
| * Writer. |
| */ |
| public void setWriter(Writer newWriter, boolean append); |
| |
| /** |
| * Sets the current File used to log messages to a FileWriter |
| * using the specified File. If append is set to true then the |
| * content of the current Writer will be appended to the |
| * new File if possible. |
| * @param newFile The File to create a new FileWriter which will be |
| * used for logging messages. |
| * @param append Indicates whether the content of the current Writer |
| * used for logging messages should be appended to the end of the new |
| * File. |
| * @throws IOException if any problem occurs while constructing a |
| * FileWriter from the newFile. If this exception is thrown the |
| * FrameworkLog will not be effected and will continue to use the |
| * current Writer to log messages. |
| */ |
| public void setFile(File newFile, boolean append) throws IOException; |
| |
| /** |
| * Returns the log File if it is set, otherwise null is returned. |
| * @return the log File if it is set, otherwise null is returned. |
| */ |
| public File getFile(); |
| |
| /** |
| * Sets the console log option. If this is set then all logs will be |
| * logged to System.out as well as the current Writer. |
| * @param consoleLog indicates whether to log to System.out |
| */ |
| public void setConsoleLog(boolean consoleLog); |
| |
| /** |
| * Closes the FrameworkLog. After the FrameworkLog is closed messages may |
| * no longer be logged to it. |
| */ |
| public void close(); |
| } |