001/** 002 * 003 * Copyright 2003-2006 Jive Software. 004 * 005 * Licensed under the Apache License, Version 2.0 (the "License"); 006 * you may not use this file except in compliance with the License. 007 * You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.jivesoftware.smack.filter; 018 019import org.jivesoftware.smack.packet.IQ; 020import org.jivesoftware.smack.packet.IQ.Type; 021import org.jivesoftware.smack.util.Objects; 022 023/** 024 * A filter for IQ stanza(/packet) types. Returns true only if the stanza(/packet) is an IQ packet 025 * and it matches the type provided in the constructor. 026 * 027 * @author Alexander Wenckus 028 * 029 */ 030public class IQTypeFilter extends FlexibleStanzaTypeFilter<IQ> { 031 032 public static final StanzaFilter GET = new IQTypeFilter(Type.get); 033 public static final StanzaFilter SET = new IQTypeFilter(Type.set); 034 public static final StanzaFilter RESULT = new IQTypeFilter(Type.result); 035 public static final StanzaFilter ERROR = new IQTypeFilter(Type.error); 036 public static final StanzaFilter GET_OR_SET = new OrFilter(GET, SET); 037 038 private final IQ.Type type; 039 040 private IQTypeFilter(IQ.Type type) { 041 super(IQ.class); 042 this.type = Objects.requireNonNull(type, "Type must not be null"); 043 } 044 045 @Override 046 protected boolean acceptSpecific(IQ iq) { 047 return iq.getType() == type; 048 } 049 050 @Override 051 public String toString() { 052 return getClass().getSimpleName() + ": type=" + type; 053 } 054}