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| org.apache.commons.jelly.util.SafeContentHandler |
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| 1 | /* |
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| 2 | * Copyright 2002,2004 The Apache Software Foundation. |
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| 3 | * |
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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| 5 | * you may not use this file except in compliance with the License. |
|
| 6 | * You may obtain a copy of the License at |
|
| 7 | * |
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 9 | * |
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| 10 | * Unless required by applicable law or agreed to in writing, software |
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 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 | */ |
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| 16 | package org.apache.commons.jelly.util; |
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| 17 | ||
| 18 | import org.xml.sax.Attributes; |
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| 19 | import org.xml.sax.ContentHandler; |
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| 20 | import org.xml.sax.Locator; |
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| 21 | import org.xml.sax.SAXException; |
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| 22 | ||
| 23 | /** |
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| 24 | * Ensures that only one start and end document event is passed onto the underlying |
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| 25 | * ContentHandler. This object can only be used once and then discarded. |
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| 26 | * |
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| 27 | * @author <a href="mailto:jstrachan@apache.org">James Strachan</a> |
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| 28 | */ |
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| 29 | public class SafeContentHandler implements ContentHandler { |
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| 30 | private ContentHandler handler; |
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| 31 | private boolean documentStarted; |
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| 32 | private boolean documentEnded; |
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| 33 | ||
| 34 | 78 | public SafeContentHandler(ContentHandler handler) { |
| 35 | 78 | this.handler = handler; |
| 36 | 78 | } |
| 37 | ||
| 38 | /** |
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| 39 | * @throws org.xml.sax.SAXException |
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| 40 | */ |
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| 41 | public void startDocument() throws SAXException { |
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| 42 | 78 | if (! documentStarted) { |
| 43 | 78 | handler.startDocument(); |
| 44 | 78 | documentStarted = true; |
| 45 | } |
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| 46 | 78 | } |
| 47 | ||
| 48 | /** |
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| 49 | * @throws org.xml.sax.SAXException |
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| 50 | */ |
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| 51 | public void endDocument() throws SAXException { |
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| 52 | 78 | if (! documentEnded) { |
| 53 | 78 | handler.endDocument(); |
| 54 | 78 | documentEnded = true; |
| 55 | } |
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| 56 | 78 | } |
| 57 | ||
| 58 | /** |
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| 59 | * @param arg0 |
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| 60 | * @param arg1 |
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| 61 | * @param arg2 |
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| 62 | * @throws org.xml.sax.SAXException |
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| 63 | */ |
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| 64 | public void characters(char[] arg0, int arg1, class="keyword">int arg2) |
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| 65 | throws SAXException { |
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| 66 | 78 | handler.characters(arg0, arg1, arg2); |
| 67 | 78 | } |
| 68 | ||
| 69 | /** |
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| 70 | * @param arg0 |
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| 71 | * @param arg1 |
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| 72 | * @param arg2 |
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| 73 | * @throws org.xml.sax.SAXException |
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| 74 | */ |
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| 75 | public void endElement(String arg0, String arg1, String arg2) |
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| 76 | throws SAXException { |
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| 77 | 65 | handler.endElement(arg0, arg1, arg2); |
| 78 | 65 | } |
| 79 | ||
| 80 | /** |
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| 81 | * @param arg0 |
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| 82 | * @throws org.xml.sax.SAXException |
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| 83 | */ |
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| 84 | public void endPrefixMapping(String arg0) throws SAXException { |
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| 85 | 13 | handler.endPrefixMapping(arg0); |
| 86 | 13 | } |
| 87 | ||
| 88 | /** |
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| 89 | * @param arg0 |
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| 90 | * @param arg1 |
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| 91 | * @param arg2 |
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| 92 | * @throws org.xml.sax.SAXException |
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| 93 | */ |
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| 94 | public void ignorableWhitespace(char[] arg0, int arg1, class="keyword">int arg2) |
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| 95 | throws SAXException { |
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| 96 | 0 | handler.ignorableWhitespace(arg0, arg1, arg2); |
| 97 | 0 | } |
| 98 | ||
| 99 | /** |
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| 100 | * @param arg0 |
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| 101 | * @param arg1 |
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| 102 | * @throws org.xml.sax.SAXException |
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| 103 | */ |
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| 104 | public void processingInstruction(String arg0, String arg1) |
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| 105 | throws SAXException { |
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| 106 | 0 | handler.processingInstruction(arg0, arg1); |
| 107 | 0 | } |
| 108 | ||
| 109 | /** |
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| 110 | * @param arg0 |
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| 111 | */ |
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| 112 | public void setDocumentLocator(Locator arg0) { |
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| 113 | 0 | handler.setDocumentLocator(arg0); |
| 114 | 0 | } |
| 115 | ||
| 116 | /** |
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| 117 | * @param arg0 |
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| 118 | * @throws org.xml.sax.SAXException |
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| 119 | */ |
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| 120 | public void skippedEntity(String arg0) throws SAXException { |
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| 121 | 0 | handler.skippedEntity(arg0); |
| 122 | 0 | } |
| 123 | ||
| 124 | /** |
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| 125 | * @param arg0 |
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| 126 | * @param arg1 |
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| 127 | * @param arg2 |
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| 128 | * @param arg3 |
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| 129 | * @throws org.xml.sax.SAXException |
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| 130 | */ |
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| 131 | public void startElement( |
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| 132 | String arg0, |
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| 133 | String arg1, |
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| 134 | String arg2, |
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| 135 | Attributes arg3) |
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| 136 | throws SAXException { |
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| 137 | 65 | handler.startElement(arg0, arg1, arg2, arg3); |
| 138 | 65 | } |
| 139 | ||
| 140 | /** |
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| 141 | * @param arg0 |
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| 142 | * @param arg1 |
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| 143 | * @throws org.xml.sax.SAXException |
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| 144 | */ |
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| 145 | public void startPrefixMapping(String arg0, String arg1) |
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| 146 | throws SAXException { |
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| 147 | 13 | handler.startPrefixMapping(arg0, arg1); |
| 148 | 13 | } |
| 149 | } |
| This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |