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The Apache Log4j Implementation
/*
* 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.logging.log4j.core.config.plugins.visitors;
import org.apache.logging.log4j.core.LogEvent;
import org.apache.logging.log4j.core.config.Configuration;
import org.apache.logging.log4j.core.config.Node;
import org.apache.logging.log4j.core.config.plugins.PluginValue;
import org.apache.logging.log4j.util.StringBuilders;
/**
* PluginVisitor implementation for {@link PluginValue}.
*/
public class PluginValueVisitor extends AbstractPluginVisitor {
public PluginValueVisitor() {
super(PluginValue.class);
}
@Override
public Object visit(final Configuration configuration, final Node node, final LogEvent event,
final StringBuilder log) {
final String name = this.annotation.value();
final String rawValue = node.getValue() != null ? node.getValue() :
removeAttributeValue(node.getAttributes(), "value");
final String value = this.substitutor.replace(event, rawValue);
StringBuilders.appendKeyDqValue(log, name, value);
return value;
}
}