001/** 002 * 003 * Copyright © 2014 Florian Schmaus 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.util; 018 019import java.util.Collection; 020 021import org.jivesoftware.smack.packet.ExtensionElement; 022 023public class PacketUtil { 024 025 /** 026 * Get a extension element from a collection 027 * 028 * @param collection 029 * @param element 030 * @param namespace 031 * @return the extension element 032 * @deprecated use {@link #extensionElementFrom(Collection, String, String)} instead 033 */ 034 @Deprecated 035 public static <PE extends ExtensionElement> PE packetExtensionfromCollection( 036 Collection<ExtensionElement> collection, String element, 037 String namespace) { 038 return extensionElementFrom(collection, element, namespace); 039 } 040 041 /** 042 * Get a extension element from a collection 043 * 044 * @param collection 045 * @param element 046 * @param namespace 047 * @return the extension element 048 */ 049 @SuppressWarnings("unchecked") 050 public static <PE extends ExtensionElement> PE extensionElementFrom(Collection<ExtensionElement> collection, 051 String element, String namespace) { 052 for (ExtensionElement packetExtension : collection) { 053 if ((element == null || packetExtension.getElementName().equals( 054 element)) 055 && packetExtension.getNamespace().equals(namespace)) { 056 return (PE) packetExtension; 057 } 058 } 059 return null; 060 } 061}