/*
* 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;
import java.util.HashMap;
import java.util.Map;
import org.apache.logging.log4j.core.config.Configuration;
import org.apache.logging.log4j.core.config.Property;
import org.apache.logging.log4j.core.lookup.Interpolator;
import org.apache.logging.log4j.core.lookup.MapLookup;
import org.apache.logging.log4j.core.lookup.StrLookup;
/**
* Handles properties defined in the configuration.
*/
@Plugin(name = "properties", category = "Core", printObject = true)
public final class PropertiesPlugin {
private PropertiesPlugin() {
}
/**
* Create the Properties component.
* @param properties An array of Property elements.
* @param config The Configuration.
* @return An Interpolator that includes the configuration properties.
*/
@PluginFactory
public static StrLookup configureSubstitutor(@PluginElement("Properties") final Property[] properties,
@PluginConfiguration final Configuration config) {
if (properties == null) {
return new Interpolator(null);
}
final Map<String, String> map = new HashMap<String, String>(config.getProperties());
for (final Property prop : properties) {
map.put(prop.getName(), prop.getValue());
}
return new Interpolator(new MapLookup(map));
}
}