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Diffstat (limited to 'src/jdk/nashorn/internal/runtime/options/LoggingOption.java')
-rw-r--r-- | src/jdk/nashorn/internal/runtime/options/LoggingOption.java | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/src/jdk/nashorn/internal/runtime/options/LoggingOption.java b/src/jdk/nashorn/internal/runtime/options/LoggingOption.java new file mode 100644 index 00000000..e1d9cede --- /dev/null +++ b/src/jdk/nashorn/internal/runtime/options/LoggingOption.java @@ -0,0 +1,133 @@ +/* + * Copyright (c) 2010, 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. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * 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. + */ + +package jdk.nashorn.internal.runtime.options; + +import java.util.Collections; +import java.util.HashMap; +import java.util.Locale; +import java.util.Map; +import java.util.Map.Entry; +import java.util.logging.Level; + +/** + * Class that collects logging options like --log=compiler:finest,fields,recompile:fine into + * a map form that can be used to instantiate loggers in the Global object on demand + */ +public class LoggingOption extends KeyValueOption { + + /** + * Logging info. Basically a logger name maps to this, + * which is a tuple of log level and the "is quiet" flag, + * which is a special log level used to collect RuntimeEvents + * only, but not output anything + */ + public static class LoggerInfo { + private final Level level; + private final boolean isQuiet; + + LoggerInfo(final Level level, final boolean isQuiet) { + this.level = level; + this.isQuiet = isQuiet; + } + + /** + * Get the log level + * @return log level + */ + public Level getLevel() { + return level; + } + + /** + * Get the quiet flag + * @return true if quiet flag is set + */ + public boolean isQuiet() { + return isQuiet; + } + } + + private final Map<String, LoggerInfo> loggers = new HashMap<>(); + + LoggingOption(final String value) { + super(value); + initialize(getValues()); + } + + /** + * Return the logger info collected from this command line option + * + * @return map of logger name to logger info + */ + public Map<String, LoggerInfo> getLoggers() { + return Collections.unmodifiableMap(loggers); + } + + /** + * Initialization function that is called to instantiate the logging system. It takes + * logger names (keys) and logging labels respectively + * + * @param map a map where the key is a logger name and the value a logging level + * @throws IllegalArgumentException if level or names cannot be parsed + */ + private void initialize(final Map<String, String> logMap) throws IllegalArgumentException { + try { + for (final Entry<String, String> entry : logMap.entrySet()) { + Level level; + final String name = lastPart(entry.getKey()); + final String levelString = entry.getValue().toUpperCase(Locale.ENGLISH); + final boolean isQuiet; + + if ("".equals(levelString)) { + level = Level.INFO; + isQuiet = false; + } else if ("QUIET".equals(levelString)) { + level = Level.INFO; + isQuiet = true; + } else { + level = Level.parse(levelString); + isQuiet = false; + } + + loggers.put(name, new LoggerInfo(level, isQuiet)); + } + } catch (final IllegalArgumentException | SecurityException e) { + throw e; + } + } + + + + private static String lastPart(final String packageName) { + final String[] parts = packageName.split("\\."); + if (parts.length == 0) { + return packageName; + } + return parts[parts.length - 1]; + } + + +} |