| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| Merge |
|
| 3.0;3 |
| 1 | /* | |
| 2 | * Copyright 2001,2004 The Apache Software Foundation. | |
| 3 | * | |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
| 5 | * you may not use this file except in compliance with the License. | |
| 6 | * You may obtain a copy of the License at | |
| 7 | * | |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 9 | * | |
| 10 | * Unless required by applicable law or agreed to in writing, software | |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 13 | * See the License for the specific language governing permissions and | |
| 14 | * limitations under the License. | |
| 15 | */ | |
| 16 | ||
| 17 | package org.apache.commons.scaffold.text; | |
| 18 | ||
| 19 | import java.util.Map; | |
| 20 | ||
| 21 | /** | |
| 22 | * Merge utilities. | |
| 23 | * | |
| 24 | * @author Ted Husted | |
| 25 | * @version $Revision: 155464 $ $Date: 2005-02-26 13:26:54 +0000 (Sat, 26 Feb 2005) $ | |
| 26 | */ | |
| 27 | 0 | public class Merge { |
| 28 | ||
| 29 | ||
| 30 | /** | |
| 31 | * The token markers for replacement variables, i.e. ${a1} | |
| 32 | */ | |
| 33 | 0 | public static String TOKEN_PREFIX= "${"; |
| 34 | 0 | public static String TOKEN_SUFFIX = "}"; |
| 35 | 0 | private static int TOKEN_PREFIX_LEN = TOKEN_PREFIX.length(); |
| 36 | 0 | private static int TOKEN_SUFFIX_LEN = TOKEN_SUFFIX.length(); |
| 37 | ||
| 38 | ||
| 39 | /** | |
| 40 | * Merge a Map of tokens with a template in a StringBuffer. | |
| 41 | * The parameters are marked by ${key} where (String) Map.get(key)!=null. | |
| 42 | * The merged content is returned in the same StringBuffer. | |
| 43 | * Tokens cannot be nested. Unmatched tokens are ignored. | |
| 44 | * | |
| 45 | * @param content The text containing merge tokens to be replaced. | |
| 46 | * @return int Number of replacements made | |
| 47 | */ | |
| 48 | public static int keys(StringBuffer content, Map tokens) { | |
| 49 | ||
| 50 | 0 | String t = content.toString(); |
| 51 | 0 | int start = t.length(); |
| 52 | 0 | int count = 0; |
| 53 | ||
| 54 | 0 | while ((start = t.lastIndexOf(TOKEN_PREFIX,start-1)) != -1) { |
| 55 | ||
| 56 | 0 | int end = t.indexOf(TOKEN_SUFFIX,start); |
| 57 | 0 | String key = t.substring(start+TOKEN_PREFIX_LEN,end); |
| 58 | 0 | String value = (String) tokens.get(key); |
| 59 | 0 | if (value!=null) { |
| 60 | 0 | content.replace(start,end+TOKEN_SUFFIX_LEN,value); |
| 61 | 0 | count++; |
| 62 | } | |
| 63 | 0 | } |
| 64 | 0 | return count; |
| 65 | } | |
| 66 | } | |
| 67 | ||
| 68 | /* | |
| 69 | ||
| 70 | ||
| 71 | <forward name="bookmark" path = "/do/item/View?key=${key}"/> | |
| 72 | ||
| 73 | form implements Bookmark; | |
| 74 | ||
| 75 | forward = findForward("bookmark"); | |
| 76 | ||
| 77 | if (forward!=null) { | |
| 78 | ||
| 79 | StringBuffer bmPath = new StringBuffer( forward.getPath() ); | |
| 80 | ||
| 81 | merge(bmPath,describe(form)); | |
| 82 | ||
| 83 | Bookmark bmForm = (Bookmark) form; | |
| 84 | bmForm.setBookmark(bookmark.toString()); | |
| 85 | ||
| 86 | } | |
| 87 | ||
| 88 | ... | |
| 89 | ||
| 90 | if (isBookmark()) | |
| 91 | return getBookmarkForward(); | |
| 92 | return findForward("continue"); | |
| 93 | ||
| 94 | ||
| 95 | */ |