62 lines
1.9 KiB
Java
62 lines
1.9 KiB
Java
/**
|
|
*
|
|
* Copyright 2014 Florian Schmaus
|
|
*
|
|
* 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.jivesoftware.smack.filter;
|
|
|
|
import java.lang.reflect.ParameterizedType;
|
|
|
|
import org.jivesoftware.smack.packet.Stanza;
|
|
import org.jivesoftware.smack.util.Objects;
|
|
|
|
/**
|
|
* Filters for packets of a particular type and allows a custom method to further filter the packets.
|
|
*
|
|
* @author Florian Schmaus
|
|
*/
|
|
public abstract class FlexiblePacketTypeFilter<P extends Stanza> implements PacketFilter {
|
|
|
|
protected final Class<P> packetType;
|
|
|
|
public FlexiblePacketTypeFilter(Class<P> packetType) {
|
|
this.packetType = Objects.requireNonNull(packetType, "Type must not be null");
|
|
}
|
|
|
|
@SuppressWarnings("unchecked")
|
|
public FlexiblePacketTypeFilter() {
|
|
packetType = (Class<P>) ((ParameterizedType) getClass().getGenericSuperclass()).getActualTypeArguments()[0];
|
|
}
|
|
|
|
@Override
|
|
@SuppressWarnings("unchecked")
|
|
public boolean accept(Stanza packet) {
|
|
if (packetType.isInstance(packet)) {
|
|
return acceptSpecific((P) packet);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
protected abstract boolean acceptSpecific(P packet);
|
|
|
|
@Override
|
|
public String toString() {
|
|
StringBuilder sb = new StringBuilder();
|
|
sb.append(getClass().getSimpleName());
|
|
sb.append(" (" + packetType.toString() + ')');
|
|
return sb.toString();
|
|
}
|
|
}
|