| // |
| // ======================================================================== |
| // Copyright (c) 1995-2015 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package org.eclipse.jetty.util.log; |
| |
| import java.io.PrintStream; |
| import java.security.AccessControlException; |
| import java.util.Properties; |
| import java.util.logging.Level; |
| |
| import org.eclipse.jetty.util.DateCache; |
| import org.eclipse.jetty.util.annotation.ManagedAttribute; |
| import org.eclipse.jetty.util.annotation.ManagedObject; |
| |
| /** |
| * StdErr Logging implementation. |
| * <p> |
| * A Jetty {@link Logger} that sends all logs to STDERR ({@link System#err}) with basic formatting. |
| * <p> |
| * Supports named loggers, and properties based configuration. |
| * <p> |
| * Configuration Properties: |
| * <dl> |
| * <dt>${name|hierarchy}.LEVEL=(ALL|DEBUG|INFO|WARN|OFF)</dt> |
| * <dd> |
| * Sets the level that the Logger should log at.<br> |
| * Names can be a package name, or a fully qualified class name.<br> |
| * Default: INFO<br> |
| * <br> |
| * Examples: |
| * <dl> |
| * <dt>org.eclipse.jetty.LEVEL=WARN</dt> |
| * <dd>indicates that all of the jetty specific classes, in any package that |
| * starts with <code>org.eclipse.jetty</code> should log at level WARN.</dd> |
| * <dt>org.eclipse.jetty.io.ChannelEndPoint.LEVEL=ALL</dt> |
| * <dd>indicates that the specific class, ChannelEndPoint, should log all |
| * logging events that it can generate, including DEBUG, INFO, WARN (and even special |
| * internally ignored exception cases).</dd> |
| * </dl> |
| * </dd> |
| * |
| * <dt>${name}.SOURCE=(true|false)</dt> |
| * <dd> |
| * Logger specific, attempt to print the java source file name and line number |
| * where the logging event originated from.<br> |
| * Name must be a fully qualified class name (package name hierarchy is not supported |
| * by this configurable)<br> |
| * Warning: this is a slow operation and will have an impact on performance!<br> |
| * Default: false |
| * </dd> |
| * |
| * <dt>${name}.STACKS=(true|false)</dt> |
| * <dd> |
| * Logger specific, control the display of stacktraces.<br> |
| * Name must be a fully qualified class name (package name hierarchy is not supported |
| * by this configurable)<br> |
| * Default: true |
| * </dd> |
| * |
| * <dt>org.eclipse.jetty.util.log.stderr.SOURCE=(true|false)</dt> |
| * <dd>Special Global Configuration, attempt to print the java source file name and line number |
| * where the logging event originated from.<br> |
| * Default: false |
| * </dd> |
| * |
| * <dt>org.eclipse.jetty.util.log.stderr.LONG=(true|false)</dt> |
| * <dd>Special Global Configuration, when true, output logging events to STDERR using |
| * long form, fully qualified class names. when false, use abbreviated package names<br> |
| * Default: false |
| * </dd> |
| * <dt>org.eclipse.jetty.util.log.stderr.ESCAPE=(true|false)</dt> |
| * <dd>Global Configuration, when true output logging events to STDERR are always |
| * escaped so that control characters are replaced with '?"; '\r' with '<' and '\n' replaced '|'<br> |
| * Default: true |
| * </dd> |
| * </dl> |
| */ |
| @ManagedObject("Jetty StdErr Logging Implementation") |
| public class StdErrLog extends AbstractLogger |
| { |
| private static final String EOL = System.getProperty("line.separator"); |
| // Do not change output format lightly, people rely on this output format now. |
| private static int __tagpad = Integer.parseInt(Log.__props.getProperty("org.eclipse.jetty.util.log.StdErrLog.TAG_PAD","0")); |
| private static DateCache _dateCache; |
| |
| private final static boolean __source = Boolean.parseBoolean(Log.__props.getProperty("org.eclipse.jetty.util.log.SOURCE", |
| Log.__props.getProperty("org.eclipse.jetty.util.log.stderr.SOURCE","false"))); |
| private final static boolean __long = Boolean.parseBoolean(Log.__props.getProperty("org.eclipse.jetty.util.log.stderr.LONG","false")); |
| private final static boolean __escape = Boolean.parseBoolean(Log.__props.getProperty("org.eclipse.jetty.util.log.stderr.ESCAPE","true")); |
| |
| static |
| { |
| String deprecatedProperties[] = |
| { "DEBUG", "org.eclipse.jetty.util.log.DEBUG", "org.eclipse.jetty.util.log.stderr.DEBUG" }; |
| |
| // Toss a message to users about deprecated system properties |
| for (String deprecatedProp : deprecatedProperties) |
| { |
| if (System.getProperty(deprecatedProp) != null) |
| { |
| System.err.printf("System Property [%s] has been deprecated! (Use org.eclipse.jetty.LEVEL=DEBUG instead)%n",deprecatedProp); |
| } |
| } |
| |
| try |
| { |
| _dateCache = new DateCache("yyyy-MM-dd HH:mm:ss"); |
| } |
| catch (Exception x) |
| { |
| x.printStackTrace(System.err); |
| } |
| } |
| |
| public static void setTagPad(int pad) |
| { |
| __tagpad=pad; |
| } |
| |
| |
| private int _level = LEVEL_INFO; |
| // Level that this Logger was configured as (remembered in special case of .setDebugEnabled()) |
| private int _configuredLevel; |
| private PrintStream _stderr = null; |
| private boolean _source = __source; |
| // Print the long form names, otherwise use abbreviated |
| private boolean _printLongNames = __long; |
| // The full log name, as provided by the system. |
| private final String _name; |
| // The abbreviated log name (used by default, unless _long is specified) |
| private final String _abbrevname; |
| private boolean _hideStacks = false; |
| |
| |
| public static int getLoggingLevel(Properties props,String name) |
| { |
| int level = lookupLoggingLevel(props,name); |
| if (level==LEVEL_DEFAULT) |
| { |
| level = lookupLoggingLevel(props,"log"); |
| if (level==LEVEL_DEFAULT) |
| level=LEVEL_INFO; |
| } |
| return level; |
| } |
| |
| |
| /** |
| * Obtain a StdErrLog reference for the specified class, a convenience method used most often during testing to allow for control over a specific logger. |
| * <p> |
| * Must be actively using StdErrLog as the Logger implementation. |
| * |
| * @param clazz |
| * the Class reference for the logger to use. |
| * @return the StdErrLog logger |
| * @throws RuntimeException |
| * if StdErrLog is not the active Logger implementation. |
| */ |
| public static StdErrLog getLogger(Class<?> clazz) |
| { |
| Logger log = Log.getLogger(clazz); |
| if (log instanceof StdErrLog) |
| { |
| return (StdErrLog)log; |
| } |
| throw new RuntimeException("Logger for " + clazz + " is not of type StdErrLog"); |
| } |
| |
| /** |
| * Construct an anonymous StdErrLog (no name). |
| * <p> |
| * NOTE: Discouraged usage! |
| */ |
| public StdErrLog() |
| { |
| this(null); |
| } |
| |
| /** |
| * Construct a named StdErrLog using the {@link Log} defined properties |
| * |
| * @param name |
| * the name of the logger |
| */ |
| public StdErrLog(String name) |
| { |
| this(name,null); |
| } |
| |
| /** |
| * Construct a named Logger using the provided properties to configure logger. |
| * |
| * @param name |
| * the name of the logger |
| * @param props |
| * the configuration properties |
| */ |
| public StdErrLog(String name, Properties props) |
| { |
| if (props!=null && props!=Log.__props) |
| Log.__props.putAll(props); |
| _name = name == null?"":name; |
| _abbrevname = condensePackageString(this._name); |
| _level = getLoggingLevel(Log.__props,this._name); |
| _configuredLevel = _level; |
| |
| try |
| { |
| String source = getLoggingProperty(Log.__props,_name,"SOURCE"); |
| _source = source==null?__source:Boolean.parseBoolean(source); |
| } |
| catch (AccessControlException ace) |
| { |
| _source = __source; |
| } |
| |
| try |
| { |
| // allow stacktrace display to be controlled by properties as well |
| String stacks = getLoggingProperty(Log.__props,_name,"STACKS"); |
| _hideStacks = stacks==null?false:!Boolean.parseBoolean(stacks); |
| } |
| catch (AccessControlException ignore) |
| { |
| /* ignore */ |
| } |
| } |
| |
| public String getName() |
| { |
| return _name; |
| } |
| |
| public void setPrintLongNames(boolean printLongNames) |
| { |
| this._printLongNames = printLongNames; |
| } |
| |
| public boolean isPrintLongNames() |
| { |
| return this._printLongNames; |
| } |
| |
| public boolean isHideStacks() |
| { |
| return _hideStacks; |
| } |
| |
| public void setHideStacks(boolean hideStacks) |
| { |
| _hideStacks = hideStacks; |
| } |
| |
| /* ------------------------------------------------------------ */ |
| /** |
| * Is the source of a log, logged |
| * |
| * @return true if the class, method, file and line number of a log is logged. |
| */ |
| public boolean isSource() |
| { |
| return _source; |
| } |
| |
| /* ------------------------------------------------------------ */ |
| /** |
| * Set if a log source is logged. |
| * |
| * @param source |
| * true if the class, method, file and line number of a log is logged. |
| */ |
| public void setSource(boolean source) |
| { |
| _source = source; |
| } |
| |
| public void warn(String msg, Object... args) |
| { |
| if (_level <= LEVEL_WARN) |
| { |
| StringBuilder buffer = new StringBuilder(64); |
| format(buffer,":WARN:",msg,args); |
| (_stderr==null?System.err:_stderr).println(buffer); |
| } |
| } |
| |
| public void warn(Throwable thrown) |
| { |
| warn("",thrown); |
| } |
| |
| public void warn(String msg, Throwable thrown) |
| { |
| if (_level <= LEVEL_WARN) |
| { |
| StringBuilder buffer = new StringBuilder(64); |
| format(buffer,":WARN:",msg,thrown); |
| (_stderr==null?System.err:_stderr).println(buffer); |
| } |
| } |
| |
| public void info(String msg, Object... args) |
| { |
| if (_level <= LEVEL_INFO) |
| { |
| StringBuilder buffer = new StringBuilder(64); |
| format(buffer,":INFO:",msg,args); |
| (_stderr==null?System.err:_stderr).println(buffer); |
| } |
| } |
| |
| public void info(Throwable thrown) |
| { |
| info("",thrown); |
| } |
| |
| public void info(String msg, Throwable thrown) |
| { |
| if (_level <= LEVEL_INFO) |
| { |
| StringBuilder buffer = new StringBuilder(64); |
| format(buffer,":INFO:",msg,thrown); |
| (_stderr==null?System.err:_stderr).println(buffer); |
| } |
| } |
| |
| @ManagedAttribute("is debug enabled for root logger Log.LOG") |
| public boolean isDebugEnabled() |
| { |
| return (_level <= LEVEL_DEBUG); |
| } |
| |
| /** |
| * Legacy interface where a programmatic configuration of the logger level |
| * is done as a wholesale approach. |
| */ |
| @Override |
| public void setDebugEnabled(boolean enabled) |
| { |
| if (enabled) |
| { |
| this._level = LEVEL_DEBUG; |
| |
| for (Logger log : Log.getLoggers().values()) |
| { |
| if (log.getName().startsWith(getName()) && log instanceof StdErrLog) |
| ((StdErrLog)log).setLevel(LEVEL_DEBUG); |
| } |
| } |
| else |
| { |
| this._level = this._configuredLevel; |
| |
| for (Logger log : Log.getLoggers().values()) |
| { |
| if (log.getName().startsWith(getName()) && log instanceof StdErrLog) |
| ((StdErrLog)log).setLevel(((StdErrLog)log)._configuredLevel); |
| } |
| } |
| } |
| |
| public int getLevel() |
| { |
| return _level; |
| } |
| |
| /** |
| * Set the level for this logger. |
| * <p> |
| * Available values ({@link StdErrLog#LEVEL_ALL}, {@link StdErrLog#LEVEL_DEBUG}, {@link StdErrLog#LEVEL_INFO}, |
| * {@link StdErrLog#LEVEL_WARN}) |
| * |
| * @param level |
| * the level to set the logger to |
| */ |
| public void setLevel(int level) |
| { |
| this._level = level; |
| } |
| |
| public void setStdErrStream(PrintStream stream) |
| { |
| this._stderr = stream==System.err?null:stream; |
| } |
| |
| public void debug(String msg, Object... args) |
| { |
| if (_level <= LEVEL_DEBUG) |
| { |
| StringBuilder buffer = new StringBuilder(64); |
| format(buffer,":DBUG:",msg,args); |
| (_stderr==null?System.err:_stderr).println(buffer); |
| } |
| } |
| |
| public void debug(String msg, long arg) |
| { |
| if (isDebugEnabled()) |
| { |
| StringBuilder buffer = new StringBuilder(64); |
| format(buffer,":DBUG:",msg,arg); |
| (_stderr==null?System.err:_stderr).println(buffer); |
| } |
| } |
| |
| public void debug(Throwable thrown) |
| { |
| debug("",thrown); |
| } |
| |
| public void debug(String msg, Throwable thrown) |
| { |
| if (_level <= LEVEL_DEBUG) |
| { |
| StringBuilder buffer = new StringBuilder(64); |
| format(buffer,":DBUG:",msg,thrown); |
| (_stderr==null?System.err:_stderr).println(buffer); |
| } |
| } |
| |
| private void format(StringBuilder buffer, String level, String msg, Object... args) |
| { |
| long now = System.currentTimeMillis(); |
| int ms=(int)(now%1000); |
| String d = _dateCache.formatNow(now); |
| tag(buffer,d,ms,level); |
| format(buffer,msg,args); |
| } |
| |
| private void format(StringBuilder buffer, String level, String msg, Throwable thrown) |
| { |
| format(buffer,level,msg); |
| if (isHideStacks()) |
| { |
| format(buffer,": "+String.valueOf(thrown)); |
| } |
| else |
| { |
| format(buffer,thrown); |
| } |
| } |
| |
| private void tag(StringBuilder buffer, String d, int ms, String tag) |
| { |
| buffer.setLength(0); |
| buffer.append(d); |
| if (ms > 99) |
| { |
| buffer.append('.'); |
| } |
| else if (ms > 9) |
| { |
| buffer.append(".0"); |
| } |
| else |
| { |
| buffer.append(".00"); |
| } |
| buffer.append(ms).append(tag); |
| |
| String name=_printLongNames?_name:_abbrevname; |
| String tname=Thread.currentThread().getName(); |
| |
| int p=__tagpad>0?(name.length()+tname.length()-__tagpad):0; |
| |
| if (p<0) |
| { |
| buffer |
| .append(name) |
| .append(':') |
| .append(" ",0,-p) |
| .append(tname); |
| } |
| else if (p==0) |
| { |
| buffer.append(name).append(':').append(tname); |
| } |
| buffer.append(':'); |
| |
| if (_source) |
| { |
| Throwable source = new Throwable(); |
| StackTraceElement[] frames = source.getStackTrace(); |
| for (int i = 0; i < frames.length; i++) |
| { |
| final StackTraceElement frame = frames[i]; |
| String clazz = frame.getClassName(); |
| if (clazz.equals(StdErrLog.class.getName()) || clazz.equals(Log.class.getName())) |
| { |
| continue; |
| } |
| if (!_printLongNames && clazz.startsWith("org.eclipse.jetty.")) |
| { |
| buffer.append(condensePackageString(clazz)); |
| } |
| else |
| { |
| buffer.append(clazz); |
| } |
| buffer.append('#').append(frame.getMethodName()); |
| if (frame.getFileName() != null) |
| { |
| buffer.append('(').append(frame.getFileName()).append(':').append(frame.getLineNumber()).append(')'); |
| } |
| buffer.append(':'); |
| break; |
| } |
| } |
| |
| buffer.append(' '); |
| } |
| |
| private void format(StringBuilder builder, String msg, Object... args) |
| { |
| if (msg == null) |
| { |
| msg = ""; |
| for (int i = 0; i < args.length; i++) |
| { |
| msg += "{} "; |
| } |
| } |
| String braces = "{}"; |
| int start = 0; |
| for (Object arg : args) |
| { |
| int bracesIndex = msg.indexOf(braces,start); |
| if (bracesIndex < 0) |
| { |
| escape(builder,msg.substring(start)); |
| builder.append(" "); |
| builder.append(arg); |
| start = msg.length(); |
| } |
| else |
| { |
| escape(builder,msg.substring(start,bracesIndex)); |
| builder.append(String.valueOf(arg)); |
| start = bracesIndex + braces.length(); |
| } |
| } |
| escape(builder,msg.substring(start)); |
| } |
| |
| private void escape(StringBuilder builder, String string) |
| { |
| if (__escape) |
| { |
| for (int i = 0; i < string.length(); ++i) |
| { |
| char c = string.charAt(i); |
| if (Character.isISOControl(c)) |
| { |
| if (c == '\n') |
| { |
| builder.append('|'); |
| } |
| else if (c == '\r') |
| { |
| builder.append('<'); |
| } |
| else |
| { |
| builder.append('?'); |
| } |
| } |
| else |
| { |
| builder.append(c); |
| } |
| } |
| } |
| else |
| builder.append(string); |
| } |
| |
| protected void format(StringBuilder buffer, Throwable thrown) |
| { |
| format(buffer,thrown,""); |
| } |
| |
| protected void format(StringBuilder buffer, Throwable thrown, String indent) |
| { |
| if (thrown == null) |
| { |
| buffer.append("null"); |
| } |
| else |
| { |
| buffer.append(EOL).append(indent); |
| format(buffer,thrown.toString()); |
| StackTraceElement[] elements = thrown.getStackTrace(); |
| for (int i = 0; elements != null && i < elements.length; i++) |
| { |
| buffer.append(EOL).append(indent).append("\tat "); |
| format(buffer,elements[i].toString()); |
| } |
| |
| for (Throwable suppressed:thrown.getSuppressed()) |
| { |
| buffer.append(EOL).append(indent).append("Suppressed: "); |
| format(buffer,suppressed,"\t|"+indent); |
| } |
| |
| Throwable cause = thrown.getCause(); |
| if (cause != null && cause != thrown) |
| { |
| buffer.append(EOL).append(indent).append("Caused by: "); |
| format(buffer,cause,indent); |
| } |
| } |
| } |
| |
| |
| /** |
| * Create a Child Logger of this Logger. |
| */ |
| @Override |
| protected Logger newLogger(String fullname) |
| { |
| StdErrLog logger = new StdErrLog(fullname); |
| // Preserve configuration for new loggers configuration |
| logger.setPrintLongNames(_printLongNames); |
| logger._stderr = this._stderr; |
| |
| // Force the child to have any programmatic configuration |
| if (_level!=_configuredLevel) |
| logger._level=_level; |
| |
| return logger; |
| } |
| |
| @Override |
| public String toString() |
| { |
| StringBuilder s = new StringBuilder(); |
| s.append("StdErrLog:"); |
| s.append(_name); |
| s.append(":LEVEL="); |
| switch (_level) |
| { |
| case LEVEL_ALL: |
| s.append("ALL"); |
| break; |
| case LEVEL_DEBUG: |
| s.append("DEBUG"); |
| break; |
| case LEVEL_INFO: |
| s.append("INFO"); |
| break; |
| case LEVEL_WARN: |
| s.append("WARN"); |
| break; |
| default: |
| s.append("?"); |
| break; |
| } |
| return s.toString(); |
| } |
| |
| public void ignore(Throwable ignored) |
| { |
| if (_level <= LEVEL_ALL) |
| { |
| StringBuilder buffer = new StringBuilder(64); |
| format(buffer,":IGNORED:","",ignored); |
| (_stderr==null?System.err:_stderr).println(buffer); |
| } |
| } |
| } |