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/*
* Copyright (c) 2004 - 2012 Eike Stepper (Berlin, Germany) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Eike Stepper - initial API and implementation
*/
package org.eclipse.net4j.internal.util.om.pref;
import org.eclipse.net4j.internal.util.bundle.OM;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.util.Arrays;
/**
* @author Eike Stepper
*/
public final class ArrayPreference extends Preference<String[]>
{
private static final String SEPARATOR = ","; //$NON-NLS-1$
private static final String UTF_8 = "UTF-8"; //$NON-NLS-1$
public ArrayPreference(Preferences preferences, String name, String[] defaultValue)
{
super(preferences, name, defaultValue);
}
@Override
protected String getString()
{
String[] array = getValue();
if (array == null || array.length == 0)
{
return null;
}
StringBuilder builder = new StringBuilder();
for (String element : array)
{
if (builder.length() != 0)
{
builder.append(SEPARATOR);
builder.append(" "); //$NON-NLS-1$
}
try
{
String encoded = URLEncoder.encode(element, UTF_8);
builder.append(encoded);
}
catch (UnsupportedEncodingException ex)
{
OM.LOG.error(ex);
return null;
}
}
return builder.toString();
}
@Override
protected String[] convert(String value)
{
String[] array = value.split(SEPARATOR);
if (array == null || array.length == 0)
{
return Preferences.DEFAULT_ARRAY;
}
for (int i = 0; i < array.length; i++)
{
try
{
array[i] = URLDecoder.decode(array[i].trim(), UTF_8);
}
catch (UnsupportedEncodingException ex)
{
OM.LOG.error(ex);
return null;
}
}
return array;
}
public Type getType()
{
return Type.ARRAY;
}
@Override
public String toString()
{
return getName() + " = " + Arrays.asList(getValue());
}
}
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