| /* |
| * 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. |
| */ |
| package org.apache.felix.cm.integration.helper; |
| |
| import java.io.PrintWriter; |
| import java.io.StringWriter; |
| |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.FrameworkEvent; |
| import org.osgi.framework.FrameworkListener; |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.framework.ServiceRegistration; |
| import org.osgi.service.log.LogService; |
| |
| /** |
| * OSGi log service which logs messages to standard output. |
| * This class can also be used to detect if the ConfigurationAdmin service has logged |
| * some warnings during a stress integration test. |
| */ |
| public class Log implements LogService, FrameworkListener |
| { |
| // Default OSGI log service level logged to standard output. |
| private final static int LOG_LEVEL = LogService.LOG_WARNING; |
| |
| // Flag used to check if some errors have been logged during the execution of a given test. |
| private volatile boolean m_errorsLogged; |
| |
| // We implement OSGI log service. |
| protected ServiceRegistration logService; |
| |
| // Bundle context used to register our log listener |
| private BundleContext ctx; |
| |
| /** |
| * Default constructor. |
| * @Param ctx the Bundle Context used to register this log service. The {@link #close} must |
| * be called when the logger is not used anymore. |
| */ |
| public Log(BundleContext ctx) |
| { |
| this.ctx = ctx; |
| logService = ctx.registerService(LogService.class.getName(), this, null); |
| ctx.addFrameworkListener(this); |
| } |
| |
| /** |
| * Unregister our log listener |
| */ |
| public void close() |
| { |
| logService.unregister(); |
| ctx.removeFrameworkListener(this); |
| } |
| |
| public void log(int level, String message) |
| { |
| checkError(level, null); |
| if (LOG_LEVEL >= level) |
| { |
| System.out.println(getLevel(level) + " - " + Thread.currentThread().getName() + " : " + message); |
| } |
| } |
| |
| public void log(int level, String message, Throwable exception) |
| { |
| checkError(level, exception); |
| if (LOG_LEVEL >= level) |
| { |
| StringBuilder sb = new StringBuilder(); |
| sb.append(getLevel(level) + " - " + Thread.currentThread().getName() + " : "); |
| sb.append(message); |
| parse(sb, exception); |
| System.out.println(sb.toString()); |
| } |
| } |
| |
| public void log(ServiceReference sr, int level, String message) |
| { |
| checkError(level, null); |
| if (LOG_LEVEL >= level) |
| { |
| StringBuilder sb = new StringBuilder(); |
| sb.append(getLevel(level) + " - " + Thread.currentThread().getName() + " : "); |
| sb.append(message); |
| System.out.println(sb.toString()); |
| } |
| } |
| |
| public void log(ServiceReference sr, int level, String message, Throwable exception) |
| { |
| checkError(level, exception); |
| if (LOG_LEVEL >= level) |
| { |
| StringBuilder sb = new StringBuilder(); |
| sb.append(getLevel(level) + " - " + Thread.currentThread().getName() + " : "); |
| sb.append(message); |
| parse(sb, exception); |
| System.out.println(sb.toString()); |
| } |
| } |
| |
| public boolean errorsLogged() |
| { |
| return m_errorsLogged; |
| } |
| |
| private void parse(StringBuilder sb, Throwable t) |
| { |
| if (t != null) |
| { |
| sb.append(" - "); |
| StringWriter buffer = new StringWriter(); |
| PrintWriter pw = new PrintWriter(buffer); |
| t.printStackTrace(pw); |
| sb.append(buffer.toString()); |
| m_errorsLogged = true; |
| } |
| } |
| |
| private String getLevel(int level) |
| { |
| switch (level) |
| { |
| case LogService.LOG_DEBUG: |
| return "DEBUG"; |
| case LogService.LOG_ERROR: |
| return "ERROR"; |
| case LogService.LOG_INFO: |
| return "INFO"; |
| case LogService.LOG_WARNING: |
| return "WARN"; |
| default: |
| return ""; |
| } |
| } |
| |
| private void checkError(int level, Throwable exception) |
| { |
| if (level <= LOG_ERROR) |
| { |
| m_errorsLogged = true; |
| } |
| if (exception != null) |
| { |
| m_errorsLogged = true; |
| } |
| } |
| |
| public void frameworkEvent(FrameworkEvent event) |
| { |
| int eventType = event.getType(); |
| String msg = getFrameworkEventMessage(eventType); |
| int level = (eventType == FrameworkEvent.ERROR) ? LOG_ERROR : LOG_WARNING; |
| if (msg != null) |
| { |
| log(level, msg, event.getThrowable()); |
| } |
| else |
| { |
| log(level, "Unknown fwk event: " + event); |
| } |
| } |
| |
| private String getFrameworkEventMessage(int event) |
| { |
| switch (event) |
| { |
| case FrameworkEvent.ERROR: |
| return "FrameworkEvent: ERROR"; |
| case FrameworkEvent.INFO: |
| return "FrameworkEvent INFO"; |
| case FrameworkEvent.PACKAGES_REFRESHED: |
| return "FrameworkEvent: PACKAGE REFRESHED"; |
| case FrameworkEvent.STARTED: |
| return "FrameworkEvent: STARTED"; |
| case FrameworkEvent.STARTLEVEL_CHANGED: |
| return "FrameworkEvent: STARTLEVEL CHANGED"; |
| case FrameworkEvent.WARNING: |
| return "FrameworkEvent: WARNING"; |
| default: |
| return null; |
| } |
| } |
| |
| public void warn(String msg, Object... params) |
| { |
| if (LOG_LEVEL >= LogService.LOG_WARNING) |
| { |
| log(LogService.LOG_WARNING, params.length > 0 ? String.format(msg, params) : msg); |
| } |
| } |
| |
| public void info(String msg, Object... params) |
| { |
| if (LOG_LEVEL >= LogService.LOG_INFO) |
| { |
| log(LogService.LOG_INFO, params.length > 0 ? String.format(msg, params) : msg); |
| } |
| } |
| |
| public void debug(String msg, Object... params) |
| { |
| if (LOG_LEVEL >= LogService.LOG_DEBUG) |
| { |
| log(LogService.LOG_DEBUG, params.length > 0 ? String.format(msg, params) : msg); |
| } |
| } |
| |
| public void error(String msg, Object... params) |
| { |
| log(LogService.LOG_ERROR, params.length > 0 ? String.format(msg, params) : msg); |
| } |
| |
| public void error(String msg, Throwable err, Object... params) |
| { |
| log(LogService.LOG_ERROR, params.length > 0 ? String.format(msg, params) : msg, err); |
| } |
| |
| public void error(Throwable err) |
| { |
| log(LogService.LOG_ERROR, "error", err); |
| } |
| } |