| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| TagHandlerUtils |
|
| 5.8;5.8 |
| 1 | /* | |
| 2 | * Licensed to the Apache Software Foundation (ASF) under one | |
| 3 | * or more contributor license agreements. See the NOTICE file | |
| 4 | * distributed with this work for additional information | |
| 5 | * regarding copyright ownership. The ASF licenses this file | |
| 6 | * to you under the Apache License, Version 2.0 (the | |
| 7 | * "License"); you may not use this file except in compliance | |
| 8 | * with the License. You may obtain a copy of the License at | |
| 9 | * | |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 11 | * | |
| 12 | * Unless required by applicable law or agreed to in writing, | |
| 13 | * software distributed under the License is distributed on an | |
| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
| 15 | * KIND, either express or implied. See the License for the | |
| 16 | * specific language governing permissions and limitations | |
| 17 | * under the License. | |
| 18 | */ | |
| 19 | package org.apache.myfaces.view.facelets.tag; | |
| 20 | ||
| 21 | import java.util.ArrayList; | |
| 22 | import java.util.Collection; | |
| 23 | import java.util.List; | |
| 24 | ||
| 25 | import javax.faces.view.facelets.FaceletHandler; | |
| 26 | ||
| 27 | /** | |
| 28 | * This class was created to gather some code from latest Facelets not existing in latest JSF 2.0 spec. | |
| 29 | * Also, since it was created on the fly while converting, it's highly possible that methods in this class | |
| 30 | * should be moved in a more logical location and/or removed. | |
| 31 | * | |
| 32 | * @author Simon Lessard (latest modification by $Author$) | |
| 33 | * @version $Revision$ $Date$ | |
| 34 | * | |
| 35 | * @since 2.0 | |
| 36 | */ | |
| 37 | public final class TagHandlerUtils | |
| 38 | { | |
| 39 | ||
| 40 | /** | |
| 41 | * Find the first occurence of a tag handler that is instanceof T | |
| 42 | * | |
| 43 | * @since 2.0.1 | |
| 44 | * @param <T> | |
| 45 | * @param nextHandler | |
| 46 | * @param type | |
| 47 | * @return | |
| 48 | */ | |
| 49 | public static <T> T findFirstNextByType(FaceletHandler nextHandler, Class<T> type) | |
| 50 | { | |
| 51 | 0 | if (type.isAssignableFrom(nextHandler.getClass())) |
| 52 | { | |
| 53 | 0 | return (T)nextHandler; |
| 54 | } | |
| 55 | 0 | else if (nextHandler instanceof javax.faces.view.facelets.CompositeFaceletHandler) |
| 56 | { | |
| 57 | for (FaceletHandler handler : | |
| 58 | 0 | ((javax.faces.view.facelets.CompositeFaceletHandler)nextHandler).getHandlers()) |
| 59 | { | |
| 60 | 0 | if (type.isAssignableFrom(handler.getClass())) |
| 61 | { | |
| 62 | 0 | return (T)handler; |
| 63 | } | |
| 64 | } | |
| 65 | } | |
| 66 | 0 | return null; |
| 67 | } | |
| 68 | ||
| 69 | /** | |
| 70 | * From TagHandler: | |
| 71 | * protected final <T> Iterator<T> findNextByType(Class<T> type) | |
| 72 | * | |
| 73 | * @param type | |
| 74 | * @return | |
| 75 | */ | |
| 76 | @SuppressWarnings("unchecked") | |
| 77 | public static <T> Collection<T> findNextByType(FaceletHandler nextHandler, Class<T> type) | |
| 78 | { | |
| 79 | 0 | List<T> found = new ArrayList<T>(); |
| 80 | 0 | if (type.isAssignableFrom(nextHandler.getClass())) |
| 81 | { | |
| 82 | 0 | found.add((T)nextHandler); |
| 83 | } | |
| 84 | 0 | else if (nextHandler instanceof javax.faces.view.facelets.CompositeFaceletHandler) |
| 85 | { | |
| 86 | for (FaceletHandler handler : | |
| 87 | 0 | ((javax.faces.view.facelets.CompositeFaceletHandler)nextHandler).getHandlers()) |
| 88 | { | |
| 89 | 0 | if (type.isAssignableFrom(handler.getClass())) |
| 90 | { | |
| 91 | 0 | found.add((T)handler); |
| 92 | } | |
| 93 | } | |
| 94 | } | |
| 95 | ||
| 96 | 0 | return found; |
| 97 | } | |
| 98 | ||
| 99 | private TagHandlerUtils() | |
| 100 | 0 | { |
| 101 | ||
| 102 | 0 | } |
| 103 | ||
| 104 | public static Collection<FaceletHandler> findNextByType(FaceletHandler nextHandler, Class<?> ... type1) | |
| 105 | { | |
| 106 | 0 | List<FaceletHandler> found = new ArrayList<FaceletHandler>(); |
| 107 | 0 | boolean isAssignable = false; |
| 108 | 0 | for (int i = 0; i < type1.length && !isAssignable; i++) |
| 109 | { | |
| 110 | 0 | isAssignable = type1[i].isAssignableFrom(nextHandler.getClass()); |
| 111 | } | |
| 112 | 0 | if (isAssignable) |
| 113 | { | |
| 114 | 0 | found.add((FaceletHandler)nextHandler); |
| 115 | } | |
| 116 | 0 | else if (nextHandler instanceof javax.faces.view.facelets.CompositeFaceletHandler) |
| 117 | { | |
| 118 | for (FaceletHandler handler : | |
| 119 | 0 | ((javax.faces.view.facelets.CompositeFaceletHandler)nextHandler).getHandlers()) |
| 120 | { | |
| 121 | 0 | isAssignable = false; |
| 122 | 0 | for (int i = 0; i < type1.length && !isAssignable; i++) |
| 123 | { | |
| 124 | 0 | isAssignable = type1[i].isAssignableFrom(handler.getClass()); |
| 125 | } | |
| 126 | 0 | if (isAssignable) |
| 127 | { | |
| 128 | 0 | found.add((FaceletHandler)handler); |
| 129 | } | |
| 130 | } | |
| 131 | } | |
| 132 | ||
| 133 | 0 | return found; |
| 134 | } | |
| 135 | ||
| 136 | public static Collection<FaceletHandler> findNextByType(FaceletHandler nextHandler, Class<?> type1, Class<?> type2) | |
| 137 | { | |
| 138 | 0 | List<FaceletHandler> found = new ArrayList<FaceletHandler>(); |
| 139 | 0 | if (type1.isAssignableFrom(nextHandler.getClass()) || type2.isAssignableFrom(nextHandler.getClass())) |
| 140 | { | |
| 141 | 0 | found.add((FaceletHandler)nextHandler); |
| 142 | } | |
| 143 | 0 | else if (nextHandler instanceof javax.faces.view.facelets.CompositeFaceletHandler) |
| 144 | { | |
| 145 | for (FaceletHandler handler : | |
| 146 | 0 | ((javax.faces.view.facelets.CompositeFaceletHandler)nextHandler).getHandlers()) |
| 147 | { | |
| 148 | 0 | if (type1.isAssignableFrom(handler.getClass()) || type2.isAssignableFrom(handler.getClass())) |
| 149 | { | |
| 150 | 0 | found.add((FaceletHandler)handler); |
| 151 | } | |
| 152 | } | |
| 153 | } | |
| 154 | ||
| 155 | 0 | return found; |
| 156 | } | |
| 157 | } |