/*
* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.io.*;
import java.util.*;
import java.util.logging.*;
/*
* Custom LogManager implementation to verify that the implementation delegates
* to the LogManager subclass to register both system logger and user logger.
*
* The LogManager implementation is the one configuring the logger's property
* such as level, handler, etc.
*/
public class CustomLogManager extends LogManager {
static LogManager INSTANCE;
Map<String,Logger> namedLoggers = new HashMap<>();
Properties props = initConfig();
public CustomLogManager() {
if (INSTANCE != null) {
throw new RuntimeException("CustomLogManager already created");
}
INSTANCE = this;
}
private boolean useParentHandlers(String loggerName) {
String s = props.getProperty(loggerName + ".useParentHandlers");
if (s == null)
return true; // default is true
s = s.toLowerCase();
if (s.equals("true") || s.equals("1")) {
return true;
} else if (s.equals("false") || s.equals("0")) {
return false;
}
return true;
}
public synchronized boolean addLogger(Logger logger) {
String name = logger.getName();
if (namedLoggers.containsKey(name)) {
return false;
}
namedLoggers.put(name, logger);
// set level
if (props.get(name + ".level") != null) {
logger.setLevel(Level.parse(props.getProperty(name + ".level")));
}
// add handlers
if (props.get(name + ".handlers") != null && logger.getHandlers().length == 0) {
logger.addHandler(new CustomHandler());
}
if (!useParentHandlers(name)) {
logger.setUseParentHandlers(false);
}
// add parent loggers
int ix = 1;
for (;;) {
int ix2 = name.indexOf(".", ix);
if (ix2 < 0) {
break;
}
String pname = name.substring(0, ix2);
if (props.get(pname + ".level") != null ||
props.get(pname + ".handlers") != null) {
// This pname has a level/handlers definition.
// Make sure it exists.
//
// The test doesn't set the parent for simplicity.
if (!namedLoggers.containsKey(pname)) {
Logger parent = Logger.getLogger(pname);
if (!useParentHandlers(pname)) {
parent.setUseParentHandlers(false);
}
}
}
ix = ix2 + 1;
}
return true;
}
public synchronized Logger getLogger(String name) {
return namedLoggers.get(name);
}
public synchronized Enumeration<String> getLoggerNames() {
return Collections.enumeration(namedLoggers.keySet());
}
public String getProperty(String name) {
return props.getProperty(name);
}
public void readConfiguration() {
// do nothing
}
public void readConfiguration(InputStream ins) {
// do nothing
}
private Properties initConfig() {
Properties props = new Properties();
props.put(".level", "CONFIG");
props.put("CustomLogManagerTest.level", "WARNING");
props.put("CustomLogManagerTest.handlers", "CustomLogManager$CustomHandler");
props.put("SimpleLogManager.level", "INFO");
props.put("SimpleLogManager.handlers", "CustomLogManager$CustomHandler");
props.put("CustomLogManager$CustomHandler.level", "WARNING");
props.put(".handlers", "CustomLogManager$CustomHandler");
props.put("org.foo.bar.level", "SEVERE");
props.put("org.foo.bar.useParentHandlers", "true");
props.put("org.foo.handlers", "CustomLogManager$CustomHandler");
props.put("org.foo.useParentHandlers", "false");
props.put("org.openjdk.level", "SEVERE");
props.put("org.openjdk.handlers", "CustomLogManager$CustomHandler");
props.put("org.openjdk.core.level", "INFO");
props.put("org.openjdk.core.useParentHandlers", "false");
return props;
}
public static void checkLogger(String name) {
checkLogger(name, null);
}
public static void checkLogger(String name, String resourceBundleName) {
Logger logger = INSTANCE.getLogger(name);
if (logger == null) {
throw new RuntimeException("Logger \"" + name + "\" not exist");
}
System.out.format("Logger \"%s\" level=%s handlers=%s resourcebundle=%s useParentHandlers=%s%n",
name, logger.getLevel(),
Arrays.toString(logger.getHandlers()),
logger.getResourceBundleName(),
logger.getUseParentHandlers());
String rb = logger.getResourceBundleName();
if (rb != resourceBundleName && (rb == null || rb.equals(resourceBundleName))) {
throw new RuntimeException("Logger \"" + name +
"\" unexpected resource bundle: " + rb);
}
String value = INSTANCE.getProperty(name + ".level");
String level = logger.getLevel() != null ? logger.getLevel().getName() : null;
if (level != value && (level == null || level.equals(value))) {
throw new RuntimeException("Logger \"" + name + "\" unexpected level: " + level);
}
Handler[] handlers = logger.getHandlers();
String hdl = INSTANCE.getProperty(name + ".handlers");
if ((hdl == null && handlers.length != 0) ||
(hdl != null && handlers.length != 1)) {
throw new RuntimeException("Logger \"" + name + "\" unexpected handler: " +
Arrays.toString(handlers));
}
String s = INSTANCE.getProperty(name + ".useParentHandlers");
boolean uph = (s != null && s.equals("false")) ? false : true;
if (logger.getUseParentHandlers() != uph) {
throw new RuntimeException("Logger \"" + name + "\" unexpected useParentHandlers: " +
logger.getUseParentHandlers());
}
checkParents(name);
}
private static void checkParents(String name) {
int ix = 1;
for (;;) {
int ix2 = name.indexOf(".", ix);
if (ix2 < 0) {
break;
}
String pname = name.substring(0, ix2);
if (INSTANCE.getProperty(pname + ".level") != null ||
INSTANCE.getProperty(pname + ".handlers") != null) {
// This pname has a level/handlers definition.
// Make sure it exists.
checkLogger(pname);
}
ix = ix2 + 1;
}
}
// only CustomLogManager can create an instance of CustomHandler
private class CustomHandler extends StreamHandler {
}
}