Mercurial > repos > pfrommolt > ngsrich
diff NGSrich_0.5.5/src/org/jdom/input/JAXPParserFactory.java @ 0:89ad0a9cca52 default tip
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author | pfrommolt |
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date | Mon, 21 Nov 2011 08:12:19 -0500 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/NGSrich_0.5.5/src/org/jdom/input/JAXPParserFactory.java Mon Nov 21 08:12:19 2011 -0500 @@ -0,0 +1,179 @@ +/*-- + + $Id: JAXPParserFactory.java,v 1.6 2007/11/10 05:29:00 jhunter Exp $ + + Copyright (C) 2000-2007 Jason Hunter & Brett McLaughlin. + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions, and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions, and the disclaimer that follows + these conditions in the documentation and/or other materials + provided with the distribution. + + 3. The name "JDOM" must not be used to endorse or promote products + derived from this software without prior written permission. For + written permission, please contact <request_AT_jdom_DOT_org>. + + 4. Products derived from this software may not be called "JDOM", nor + may "JDOM" appear in their name, without prior written permission + from the JDOM Project Management <request_AT_jdom_DOT_org>. + + In addition, we request (but do not require) that you include in the + end-user documentation provided with the redistribution and/or in the + software itself an acknowledgement equivalent to the following: + "This product includes software developed by the + JDOM Project (http://www.jdom.org/)." + Alternatively, the acknowledgment may be graphical using the logos + available at http://www.jdom.org/images/logos. + + THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED + WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE JDOM AUTHORS OR THE PROJECT + CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + SUCH DAMAGE. + + This software consists of voluntary contributions made by many + individuals on behalf of the JDOM Project and was originally + created by Jason Hunter <jhunter_AT_jdom_DOT_org> and + Brett McLaughlin <brett_AT_jdom_DOT_org>. For more information + on the JDOM Project, please see <http://www.jdom.org/>. + + */ + +package org.jdom.input; + +import java.util.*; + +import javax.xml.parsers.*; + +import org.jdom.*; +import org.xml.sax.*; + +/** + * A non-public utility class to allocate JAXP SAX parsers. + * + * @version $Revision: 1.6 $, $Date: 2007/11/10 05:29:00 $ + * @author Laurent Bihanic + */ +class JAXPParserFactory { // package protected + + private static final String CVS_ID = + "@(#) $RCSfile: JAXPParserFactory.java,v $ $Revision: 1.6 $ $Date: 2007/11/10 05:29:00 $ $Name: jdom_1_1_1 $"; + + /** JAXP 1.2 schema language property id. */ + private static final String JAXP_SCHEMA_LANGUAGE_PROPERTY = + "http://java.sun.com/xml/jaxp/properties/schemaLanguage"; + + /** JAXP 1.2 schema location property id. */ + private static final String JAXP_SCHEMA_LOCATION_PROPERTY = + "http://java.sun.com/xml/jaxp/properties/schemaSource"; + + /** + * Private constructor to forbid allocating instances of this utility + * class. + */ + private JAXPParserFactory() { + // Never called. + } + + /* Implementor's note regarding createParser() design: The features and + properties are normally set in SAXBuilder, but we take them in + createParser() as well because some features or properties may need to be + applied during the JAXP parser construction. Today, for example, properties + is used as it's the only way to configure schema validation: JAXP defines + schema validation properties but SAX does not. This reflects in the Apache + Xerces implementation where the SAXParser implementation supports the JAXP + properties but the XMLReader does not. Hence, configuring schema validation + must be done on the SAXParser object which is only visible in + JAXParserFactory. Features is also passed in case some future JAXP release + defines JAXP-specific features. + */ + + /** + * Creates a SAX parser allocated through the configured JAXP SAX + * parser factory. + * + * @param validating whether a validating parser is requested. + * @param features the user-defined SAX features. + * @param properties the user-defined SAX properties. + * + * @return a configured XMLReader. + * + * @throws JDOMException if any error occurred when allocating or + * configuring the JAXP SAX parser. + */ + public static XMLReader createParser(boolean validating, + Map features, Map properties) throws JDOMException { + try { + SAXParser parser = null; + + // Allocate and configure JAXP SAX parser factory. + SAXParserFactory factory = SAXParserFactory.newInstance(); + factory.setValidating(validating); + factory.setNamespaceAware(true); + + try { + // Allocate parser. + parser = factory.newSAXParser(); + } + catch (ParserConfigurationException e) { + throw new JDOMException("Could not allocate JAXP SAX Parser", e); + } + + // Set user-defined JAXP properties (if any) + setProperty(parser, properties, JAXP_SCHEMA_LANGUAGE_PROPERTY); + setProperty(parser, properties, JAXP_SCHEMA_LOCATION_PROPERTY); + + // Return configured SAX XMLReader. + return parser.getXMLReader(); + } + catch (SAXException e) { + throw new JDOMException("Could not allocate JAXP SAX Parser", e); + } + } + + /** + * Sets a property on a JAXP SAX parser object if and only if it + * is declared in the user-defined properties. + * + * @param parser the JAXP SAX parser to configure. + * @param properties the user-defined SAX properties. + * @param name the name of the property to set. + * + * @throws JDOMException if any error occurred while configuring + * the property. + */ + private static void setProperty(SAXParser parser, + Map properties, String name) throws JDOMException { + try { + if (properties.containsKey(name)) { + parser.setProperty(name, properties.get(name)); + } + } + catch (SAXNotSupportedException e) { + throw new JDOMException( + name + " property not supported for JAXP parser " + + parser.getClass().getName()); + } + catch (SAXNotRecognizedException e) { + throw new JDOMException( + name + " property not recognized for JAXP parser " + + parser.getClass().getName()); + } + } +} +