-/*
- * 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.rewrite;
-
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.Iterator;
-import java.util.Map;
-import java.util.StringTokenizer;
-
-import org.apache.log4j.Logger;
-import org.apache.log4j.spi.LoggingEvent;
-
-/**
- * This policy rewrites events by adding
- * a user-specified list of properties to the event.
- * Existing properties are not modified.
- *
- * The combination of the RewriteAppender and this policy
- * performs the same actions as the PropertyFilter from log4j 1.3.
- */
-
-public class PropertyRewritePolicy implements RewritePolicy {
- private Map properties = Collections.EMPTY_MAP;
- public PropertyRewritePolicy() {
- }
-
- /**
- * Set a string representing the property name/value pairs.
- *
- * Form: propname1=propvalue1,propname2=propvalue2
- *
- * @param props
- */
- public void setProperties(String props) {
- Map hashTable = new HashMap();
- StringTokenizer pairs = new StringTokenizer(props, ",");
- while (pairs.hasMoreTokens()) {
- StringTokenizer entry = new StringTokenizer(pairs.nextToken(), "=");
- hashTable.put(entry.nextElement().toString().trim(), entry.nextElement().toString().trim());
- }
- synchronized(this) {
- properties = hashTable;
- }
- }
-
- /**
- * {@inheritDoc}
- */
- public LoggingEvent rewrite(final LoggingEvent source) {
- if (!properties.isEmpty()) {
- Map rewriteProps = new HashMap(source.getProperties());
- for(Iterator iter = properties.entrySet().iterator();
- iter.hasNext();
- ) {
- Map.Entry entry = (Map.Entry) iter.next();
- if (!rewriteProps.containsKey(entry.getKey())) {
- rewriteProps.put(entry.getKey(), entry.getValue());
- }
- }
-
- return new LoggingEvent(
- source.getFQNOfLoggerClass(),
- source.getLogger() != null ? source.getLogger(): Logger.getLogger(source.getLoggerName()),
- source.getTimeStamp(),
- source.getLevel(),
- source.getMessage(),
- source.getThreadName(),
- source.getThrowableInformation(),
- source.getNDC(),
- source.getLocationInformation(),
- rewriteProps);
- }
- return source;
- }
-
-
-
-}