X-Git-Url: http://source.jalview.org/gitweb/?p=jalview.git;a=blobdiff_plain;f=srcjar_unused%2Forg%2Fapache%2Flog4j%2Fconfig%2FPropertyPrinter.java;fp=srcjar_unused%2Forg%2Fapache%2Flog4j%2Fconfig%2FPropertyPrinter.java;h=9a62d530b7a70eca10c7be9ab3be917d0521a603;hp=0000000000000000000000000000000000000000;hb=e95c5f895775891d55d9f23d5da64f8ce6bd07bb;hpb=74f21ca6ca8fa17d53708e457d191e15904f8310 diff --git a/srcjar_unused/org/apache/log4j/config/PropertyPrinter.java b/srcjar_unused/org/apache/log4j/config/PropertyPrinter.java new file mode 100644 index 0000000..9a62d53 --- /dev/null +++ b/srcjar_unused/org/apache/log4j/config/PropertyPrinter.java @@ -0,0 +1,172 @@ +/* + * 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.log4j.config; + +import org.apache.log4j.Appender; +import org.apache.log4j.Category; +import org.apache.log4j.Level; +import org.apache.log4j.LogManager; +import org.apache.log4j.Logger; + +import java.io.PrintWriter; +import java.util.Enumeration; +import java.util.Hashtable; + +/** + Prints the configuration of the log4j default hierarchy + (which needs to be auto-initialized) as a propoperties file + on a {@link PrintWriter}. + + @author Anders Kristensen + */ +public class PropertyPrinter implements PropertyGetter.PropertyCallback { + protected int numAppenders = 0; + protected Hashtable appenderNames = new Hashtable(); + protected Hashtable layoutNames = new Hashtable(); + protected PrintWriter out; + protected boolean doCapitalize; + + public + PropertyPrinter(PrintWriter out) { + this(out, false); + } + + public + PropertyPrinter(PrintWriter out, boolean doCapitalize) { + this.out = out; + this.doCapitalize = doCapitalize; + + print(out); + out.flush(); + } + + protected + String genAppName() { + return "A" + numAppenders++; + } + + /** + * Returns true if the specified appender name is considered to have + * been generated, that is, if it is of the form A[0-9]+. + */ + protected + boolean isGenAppName(String name) { + if (name.length() < 2 || name.charAt(0) != 'A') { + return false; + } + + for (int i = 0; i < name.length(); i++) { + if (name.charAt(i) < '0' || name.charAt(i) > '9') { + return false; + } + } + return true; + } + + /** + * Prints the configuration of the default log4j hierarchy as a Java + * properties file on the specified Writer. + * + *

N.B. print() can be invoked only once! + */ + public + void print(PrintWriter out) { + printOptions(out, Logger.getRootLogger()); + + Enumeration cats = LogManager.getCurrentLoggers(); + while (cats.hasMoreElements()) { + printOptions(out, (Logger) cats.nextElement()); + } + } + + /** + * @since 1.2.15 + */ + protected + void printOptions(PrintWriter out, Category cat) { + Enumeration appenders = cat.getAllAppenders(); + Level prio = cat.getLevel(); + String appenderString = (prio == null ? "" : prio.toString()); + + while (appenders.hasMoreElements()) { + Appender app = (Appender) appenders.nextElement(); + String name; + + if ((name = (String) appenderNames.get(app)) == null) { + + // first assign name to the appender + if ((name = app.getName()) == null || isGenAppName(name)) { + name = genAppName(); + } + appenderNames.put(app, name); + + printOptions(out, app, "log4j.appender."+name); + if (app.getLayout() != null) { + printOptions(out, app.getLayout(), "log4j.appender."+name+".layout"); + } + } + appenderString += ", " + name; + } + String catKey = (cat == Logger.getRootLogger()) + ? "log4j.rootLogger" + : "log4j.logger." + cat.getName(); + if (appenderString != "") { + out.println(catKey + "=" + appenderString); + } + if (!cat.getAdditivity() && cat != Logger.getRootLogger()) { + out.println("log4j.additivity." + cat.getName() + "=false"); + } + } + + protected void printOptions(PrintWriter out, Logger cat) { + printOptions(out, (Category) cat); + } + + protected + void printOptions(PrintWriter out, Object obj, String fullname) { + out.println(fullname + "=" + obj.getClass().getName()); + PropertyGetter.getProperties(obj, this, fullname + "."); + } + + public void foundProperty(Object obj, String prefix, String name, Object value) { + // XXX: Properties encode value.toString() + if (obj instanceof Appender && "name".equals(name)) { + return; + } + if (doCapitalize) { + name = capitalize(name); + } + out.println(prefix + name + "=" + value.toString()); + } + + public static String capitalize(String name) { + if (Character.isLowerCase(name.charAt(0))) { + if (name.length() == 1 || Character.isLowerCase(name.charAt(1))) { + StringBuffer newname = new StringBuffer(name); + newname.setCharAt(0, Character.toUpperCase(name.charAt(0))); + return newname.toString(); + } + } + return name; + } + + // for testing + public static void main(String[] args) { + new PropertyPrinter(new PrintWriter(System.out)); + } +}