| Clover coverage report - dom4j - 1.6.1 |
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| Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
| SAXHelper.java | 21,4% | 43,2% | 66,7% | 40,4% |
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| 1 | /* | |
| 2 | * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved. | |
| 3 | * | |
| 4 | * This software is open source. | |
| 5 | * See the bottom of this file for the licence. | |
| 6 | */ | |
| 7 | ||
| 8 | package org.dom4j.io; | |
| 9 | ||
| 10 | import org.xml.sax.SAXException; | |
| 11 | import org.xml.sax.SAXNotRecognizedException; | |
| 12 | import org.xml.sax.SAXNotSupportedException; | |
| 13 | import org.xml.sax.XMLReader; | |
| 14 | import org.xml.sax.helpers.XMLReaderFactory; | |
| 15 | ||
| 16 | /** | |
| 17 | * <p> | |
| 18 | * <code>SAXHelper</code> contains some helper methods for working with SAX | |
| 19 | * and XMLReader objects. | |
| 20 | * </p> | |
| 21 | * | |
| 22 | * @author <a href="mailto:james.strachan@metastuff.com">James Strachan </a> | |
| 23 | * @version $Revision: 1.18 $ | |
| 24 | */ | |
| 25 | class SAXHelper { | |
| 26 | private static boolean loggedWarning = true; | |
| 27 | ||
| 28 | 0 | protected SAXHelper() { |
| 29 | } | |
| 30 | ||
| 31 | 11590 | public static boolean setParserProperty(XMLReader reader, |
| 32 | String propertyName, Object value) { | |
| 33 | 11590 | try { |
| 34 | 11590 | reader.setProperty(propertyName, value); |
| 35 | ||
| 36 | 5798 | return true; |
| 37 | } catch (SAXNotSupportedException e) { | |
| 38 | // ignore | |
| 39 | } catch (SAXNotRecognizedException e) { | |
| 40 | // ignore | |
| 41 | } | |
| 42 | ||
| 43 | 5792 | return false; |
| 44 | } | |
| 45 | ||
| 46 | 23168 | public static boolean setParserFeature(XMLReader reader, |
| 47 | String featureName, boolean value) { | |
| 48 | 23168 | try { |
| 49 | 23168 | reader.setFeature(featureName, value); |
| 50 | ||
| 51 | 17376 | return true; |
| 52 | } catch (SAXNotSupportedException e) { | |
| 53 | // ignore | |
| 54 | } catch (SAXNotRecognizedException e) { | |
| 55 | // ignore | |
| 56 | } | |
| 57 | ||
| 58 | 5792 | return false; |
| 59 | } | |
| 60 | ||
| 61 | /** | |
| 62 | * Creats a default XMLReader via the org.xml.sax.driver system property or | |
| 63 | * JAXP if the system property is not set. | |
| 64 | * | |
| 65 | * @param validating | |
| 66 | * DOCUMENT ME! | |
| 67 | * | |
| 68 | * @return DOCUMENT ME! | |
| 69 | * | |
| 70 | * @throws SAXException | |
| 71 | * DOCUMENT ME! | |
| 72 | */ | |
| 73 | 5758 | public static XMLReader createXMLReader(boolean validating) |
| 74 | throws SAXException { | |
| 75 | 5764 | XMLReader reader = null; |
| 76 | ||
| 77 | 5764 | if (reader == null) { |
| 78 | 5764 | reader = createXMLReaderViaJAXP(validating, true); |
| 79 | } | |
| 80 | ||
| 81 | 5764 | if (reader == null) { |
| 82 | 0 | try { |
| 83 | 0 | reader = XMLReaderFactory.createXMLReader(); |
| 84 | } catch (Exception e) { | |
| 85 | 0 | if (isVerboseErrorReporting()) { |
| 86 | // log all exceptions as warnings and carry | |
| 87 | // on as we have a default SAX parser we can use | |
| 88 | 0 | System.out.println("Warning: Caught exception attempting " |
| 89 | + "to use SAX to load a SAX XMLReader "); | |
| 90 | 0 | System.out.println("Warning: Exception was: " + e); |
| 91 | 0 | System.out |
| 92 | .println("Warning: I will print the stack trace " | |
| 93 | + "then carry on using the default " | |
| 94 | + "SAX parser"); | |
| 95 | 0 | e.printStackTrace(); |
| 96 | } | |
| 97 | ||
| 98 | 0 | throw new SAXException(e); |
| 99 | } | |
| 100 | } | |
| 101 | ||
| 102 | 5764 | if (reader == null) { |
| 103 | 0 | throw new SAXException("Couldn't create SAX reader"); |
| 104 | } | |
| 105 | ||
| 106 | 5764 | return reader; |
| 107 | } | |
| 108 | ||
| 109 | /** | |
| 110 | * This method attempts to use JAXP to locate the SAX2 XMLReader | |
| 111 | * implementation. This method uses reflection to avoid being dependent | |
| 112 | * directly on the JAXP classes. | |
| 113 | * | |
| 114 | * @param validating | |
| 115 | * DOCUMENT ME! | |
| 116 | * @param namespaceAware | |
| 117 | * DOCUMENT ME! | |
| 118 | * | |
| 119 | * @return DOCUMENT ME! | |
| 120 | */ | |
| 121 | 5764 | protected static XMLReader createXMLReaderViaJAXP(boolean validating, |
| 122 | boolean namespaceAware) { | |
| 123 | // try use JAXP to load the XMLReader... | |
| 124 | 5764 | try { |
| 125 | 5764 | return JAXPHelper.createXMLReader(validating, namespaceAware); |
| 126 | } catch (Throwable e) { | |
| 127 | 0 | if (!loggedWarning) { |
| 128 | 0 | loggedWarning = true; |
| 129 | ||
| 130 | 0 | if (isVerboseErrorReporting()) { |
| 131 | // log all exceptions as warnings and carry | |
| 132 | // on as we have a default SAX parser we can use | |
| 133 | 0 | System.out.println("Warning: Caught exception attempting " |
| 134 | + "to use JAXP to load a SAX XMLReader"); | |
| 135 | 0 | System.out.println("Warning: Exception was: " + e); |
| 136 | 0 | e.printStackTrace(); |
| 137 | } | |
| 138 | } | |
| 139 | } | |
| 140 | ||
| 141 | 0 | return null; |
| 142 | } | |
| 143 | ||
| 144 | 0 | protected static boolean isVerboseErrorReporting() { |
| 145 | 0 | try { |
| 146 | 0 | String flag = System.getProperty("org.dom4j.verbose"); |
| 147 | ||
| 148 | 0 | if ((flag != null) && flag.equalsIgnoreCase("true")) { |
| 149 | 0 | return true; |
| 150 | } | |
| 151 | } catch (Exception e) { | |
| 152 | // in case a security exception | |
| 153 | // happens in an applet or similar JVM | |
| 154 | } | |
| 155 | ||
| 156 | 0 | return true; |
| 157 | } | |
| 158 | } | |
| 159 | ||
| 160 | /* | |
| 161 | * Redistribution and use of this software and associated documentation | |
| 162 | * ("Software"), with or without modification, are permitted provided that the | |
| 163 | * following conditions are met: | |
| 164 | * | |
| 165 | * 1. Redistributions of source code must retain copyright statements and | |
| 166 | * notices. Redistributions must also contain a copy of this document. | |
| 167 | * | |
| 168 | * 2. Redistributions in binary form must reproduce the above copyright notice, | |
| 169 | * this list of conditions and the following disclaimer in the documentation | |
| 170 | * and/or other materials provided with the distribution. | |
| 171 | * | |
| 172 | * 3. The name "DOM4J" must not be used to endorse or promote products derived | |
| 173 | * from this Software without prior written permission of MetaStuff, Ltd. For | |
| 174 | * written permission, please contact dom4j-info@metastuff.com. | |
| 175 | * | |
| 176 | * 4. Products derived from this Software may not be called "DOM4J" nor may | |
| 177 | * "DOM4J" appear in their names without prior written permission of MetaStuff, | |
| 178 | * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd. | |
| 179 | * | |
| 180 | * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org | |
| 181 | * | |
| 182 | * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND | |
| 183 | * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 184 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 185 | * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE | |
| 186 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 187 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 188 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 189 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 190 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 191 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 192 | * POSSIBILITY OF SUCH DAMAGE. | |
| 193 | * | |
| 194 | * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved. | |
| 195 | */ |
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