/*
* Copyright 2008 The Microproperties project @sourceforge.net
* Licensed 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 net.sf.microproperties.midp;
import java.io.IOException;
import javax.microedition.midlet.MIDlet;
import net.sf.microproperties.JarFileProperties;
import net.sf.microproperties.Properties;
/**
* The <code>MIDletProperties</code> class is used to get the MIDlet properties.
* It is possible to cache the values that are already read.
*
* @author Johan Karlsson (johan.karlsson@jayway.se)
*
* @since 0.1
*
*/
public class MidletProperties extends Properties {
MIDlet midlet;
/**
* Create a <code>MidletProperties</code> object using the specified
* <code>MIDlet</code> to the the properties from.
*/
public MidletProperties(MIDlet midlet) {
if (midlet == null) {
throw new IllegalArgumentException("MIDlet must not be null.");
}
this.midlet = midlet;
}
public MidletProperties(MIDlet midlet, String jarFileName) {
if (midlet == null) {
throw new IllegalArgumentException("MIDlet must not be null.");
}
this.midlet = midlet;
JarFileProperties properties = new JarFileProperties();
try {
properties.load(jarFileName);
this.defaults = properties;
} catch (IOException e) {
System.err.println("Failed to load properties file.");
}
}
/**
* @param defaults
*/
public MidletProperties(MIDlet midlet, Properties defaults) {
this(midlet);
this.defaults = defaults;
}
public String getProperty(String key, String defaultValue) {
String property = this.getProperty(key);
if (property == null) {
property = defaultValue;
}
return property;
}
public String getProperty(String key) {
String property = midlet.getAppProperty(key);
if (property == null && defaults != null) {
property = defaults.getProperty(key);
}
return property;
}
}