/*
* Copyright (C) 2014 Red Hat, Inc. and/or its affiliates.
*
* 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 org.jboss.errai.forge.config;
import java.util.HashSet;
import java.util.Iterator;
/**
* For serializing and deserializing sets of simple string.
*
* @author Max Barkley <mbarkley@redhat.com>
*/
public class SerializableSet extends HashSet<String> {
private static final long serialVersionUID = -4968825975745239833L;
public static final String delimeter = ",";
/**
* @return The serialized {@link String} representation of this set. Note that
* ',' is used to separate values, but values are <b>not</b> escaped.
*/
public String serialize() {
final StringBuilder builder = new StringBuilder();
final Iterator<String> iterator = iterator();
if (iterator.hasNext())
builder.append(iterator.next());
while (iterator.hasNext()) {
builder.append(delimeter).append(iterator.next());
}
return builder.toString();
}
/**
* Deserialize the given {@link String} into a new {@link SerializableSet}.
*
* @param serialized
* A {@link String} generated by a call to
* {@link SerializableSet#serialize() serialize}.
* @return A new {@link SerializableSet}.
*/
public static SerializableSet deserialize(final String serialized) {
final SerializableSet set = new SerializableSet();
final String[] items = serialized.replaceAll("\\[|\\]", "").split(delimeter);
for (int i = 0; i < items.length; i++) {
if (!items[i].equals(""))
set.add(items[i].trim());
}
return set;
}
}