/*
* Copyright (c) 2010 SimpleServer authors (see CONTRIBUTORS)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package simpleserver.options;
import static simpleserver.util.Util.*;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import simpleserver.Resource;
import simpleserver.config.SortedProperties;
public abstract class AbstractOptions implements Resource {
private static final String resourceLocation = "defaults";
protected final String filename;
protected SortedProperties defaultOptions;
protected SortedProperties options;
protected AbstractOptions(String filename) {
this.filename = filename;
loadDefaults();
}
public boolean contains(String option) {
String value = options.getProperty(option);
return value != null && value.trim().length() > 0;
}
public String get(String key) {
return options.getProperty(key);
}
public int getInt(String option) {
String value = options.getProperty(option);
try {
return Integer.parseInt(value);
} catch (NumberFormatException e) {
String defaultValue = defaultOptions.getProperty(option);
if (!defaultValue.equals(value)) {
options.setProperty(option, defaultValue);
return getInt(option);
} else {
e.printStackTrace();
System.out.println("Error: Asked for int value of " + option);
return Integer.MIN_VALUE;
}
}
}
public boolean getBoolean(String option) {
return Boolean.parseBoolean(options.getProperty(option));
}
public void load() {
options = (SortedProperties) defaultOptions.clone();
File file = new File(filename);
try {
InputStream stream = new FileInputStream(file);
try {
options.load(stream);
} finally {
stream.close();
}
} catch (FileNotFoundException e) {
missingFile();
} catch (IOException e) {
println(e);
println("Could not read " + filename);
}
}
public void save() {
File file = new File(filename);
try {
OutputStream stream = new FileOutputStream(file);
try {
options.store(stream, getComment());
} finally {
stream.close();
}
} catch (IOException e) {
println(e);
println("Could not write " + filename);
}
}
protected void missingFile() {
save();
}
protected String getComment() {
return null;
}
protected void loadDefaults() {
defaultOptions = new SortedProperties();
InputStream stream = getClass().getResourceAsStream(resourceLocation + "/"
+ filename);
try {
try {
defaultOptions.load(stream);
} finally {
stream.close();
}
} catch (IOException e) {
println(e);
println("Could not read default " + filename);
}
options = (SortedProperties) defaultOptions.clone();
}
}