/*
* $Id: DefaultSettings.java 651946 2008-04-27 13:41:38Z apetrelli $
*
* 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 java.util.ArrayList;
import java.util.Iterator;
import java.util.StringTokenizer;
import org.apache.struts2.StrutsConstants;
import com.opensymphony.xwork2.util.logging.Logger;
import com.opensymphony.xwork2.util.logging.LoggerFactory;
/**
* 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 extends Settings {
/**
* The logging instance for this class.
*/
protected Logger log = LoggerFactory.getLogger(this.getClass());
/**
* The Settings object that handles API calls.
*/
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<Settings>();
// 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);
}
Settings[] settings = new Settings[list.size()];
delegate = new DelegatingSettings(list.toArray(settings));
// struts.custom.properties
try {
StringTokenizer customProperties = new StringTokenizer(delegate.getImpl(StrutsConstants.STRUTS_CUSTOM_PROPERTIES), ",");
while (customProperties.hasMoreTokens()) {
String name = customProperties.nextToken();
try {
list.add(new PropertiesSettings(name));
} catch (Exception e) {
log.error("DefaultSettings: Could not find " + name + ".properties. Skipping.");
}
}
settings = new Settings[list.size()];
delegate = new DelegatingSettings(list.toArray(settings));
} catch (IllegalArgumentException e) {
// Assume it's OK, since IllegalArgumentException is thrown
// when Settings is unable to find a certain setting,
// like the struts.custom.properties, which is commented out
}
}
// See superclass for Javadoc
public void setImpl(String name, String value) throws IllegalArgumentException, UnsupportedOperationException {
delegate.setImpl(name, value);
}
// See superclass for Javadoc
public String getImpl(String aName) throws IllegalArgumentException {
return delegate.getImpl(aName);
}
// See superclass for Javadoc
public boolean isSetImpl(String aName) {
return delegate.isSetImpl(aName);
}
// See superclass for Javadoc
public Iterator listImpl() {
return delegate.listImpl();
}
}
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