/*
* $Id$
*
* 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.struts2.config;
import com.opensymphony.xwork2.util.location.Location;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.struts2.StrutsConstants;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.StringTokenizer;
/**
* DefaultSettings implements optional methods of Settings.
* <p>
* This class creates and delegates to other settings by using an internal
* {@link DelegatingSettings} object.
*/
public class DefaultSettings implements Settings {
private static final Logger LOG = LogManager.getLogger(DefaultSettings.class);
/**
* The Settings object that handles API calls.
*/
private Settings delegate;
/**
* Constructs an instance by loading the standard property files,
* any custom property files (<code>struts.custom.properties</code>),
* and any custom message resources ().
* <p>
* Since this constructor combines Settings from multiple resources,
* it utilizes a {@link DelegatingSettings} instance,
* and all API calls are handled by that instance.
*/
public DefaultSettings() {
ArrayList<Settings> list = new ArrayList<>();
// stuts.properties, default.properties
try {
list.add(new PropertiesSettings("struts"));
} catch (Exception e) {
LOG.warn("DefaultSettings: Could not find or error in struts.properties", e);
}
delegate = new DelegatingSettings(list);
// struts.custom.properties
String files = delegate.get(StrutsConstants.STRUTS_CUSTOM_PROPERTIES);
if (files != null) {
StringTokenizer customProperties = new StringTokenizer(files, ",");
while (customProperties.hasMoreTokens()) {
String name = customProperties.nextToken();
try {
list.add(new PropertiesSettings(name));
} catch (Exception e) {
LOG.error("DefaultSettings: Could not find {}.properties. Skipping.", name);
}
}
delegate = new DelegatingSettings(list);
}
}
public Location getLocation(String name) {
return delegate.getLocation(name);
}
public String get(String aName) throws IllegalArgumentException {
return delegate.get(aName);
}
public Iterator list() {
return delegate.list();
}
}