/* XMLOutputFactory.java -- Copyright (C) 2005 Free Software Foundation, Inc. This file is part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Classpath is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version. */ package javax.xml.stream; import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.InputStream; import java.io.InputStreamReader; import java.io.IOException; import java.io.OutputStream; import java.io.Writer; import java.util.Properties; import javax.xml.transform.Result; /** * Factory for obtaining XML stream and event writers for various kinds of * output sink. *

Configuration

* * * * * * * * * * * * * * * *
NameDescriptionTypeDefaultRequired
javax.xml.stream.isRepairingNamespacesdefault namespace prefixesBooleanBoolean.FALSEyes
*/ public abstract class XMLOutputFactory { /** * Property used to control whether to default namespace prefixes. * If true, the writer will create a namespace declaration for any * attribute that doesn't have a namespace declaration in scope. */ public static final java.lang.String IS_REPAIRING_NAMESPACES = "javax.xml.stream.isRepairingNamespaces"; protected XMLOutputFactory() { } /** * Creates a new output factory. * The implementation class to load is the first found in the following * locations: *
    *
  1. the javax.xml.stream.XMLOutputFactory system * property
  2. *
  3. the above named property value in the * $JAVA_HOME/lib/stax.properties file
  4. *
  5. the class name specified in the * META-INF/services/javax.xml.stream.XMLOutputFactory * system resource
  6. *
  7. the default factory class
  8. *
*/ public static XMLOutputFactory newInstance() throws FactoryConfigurationError { ClassLoader loader = Thread.currentThread().getContextClassLoader(); if (loader == null) { loader = XMLOutputFactory.class.getClassLoader(); } String className = null; int count = 0; do { className = getFactoryClassName(loader, count++); if (className != null) { try { Class t = (loader != null) ? loader.loadClass(className) : Class.forName(className); return (XMLOutputFactory) t.newInstance(); } catch (ClassNotFoundException e) { className = null; } catch (Exception e) { throw new FactoryConfigurationError(e, "error instantiating class " + className); } } } while (className == null && count < 3); //return new gnu.xml.stream.XMLOutputFactoryImpl(); throw new FactoryConfigurationError(); } private static String getFactoryClassName(ClassLoader loader, int attempt) { final String propertyName = "javax.xml.stream.XMLOutputFactory"; switch (attempt) { case 0: return System.getProperty(propertyName); case 1: try { File file = new File(System.getProperty("java.home")); file = new File(file, "lib"); file = new File(file, "stax.properties"); InputStream in = new FileInputStream(file); Properties props = new Properties(); props.load(in); in.close(); return props.getProperty(propertyName); } catch (IOException e) { return null; } case 2: try { String serviceKey = "/META-INF/services/" + propertyName; InputStream in = (loader != null) ? loader.getResourceAsStream(serviceKey) : XMLOutputFactory.class.getResourceAsStream(serviceKey); if (in != null) { BufferedReader r = new BufferedReader(new InputStreamReader(in)); String ret = r.readLine(); r.close(); return ret; } } catch (IOException e) { } return null; default: return null; } } /** * Creates a new input factory. * This appears to be an API design bug. * @see javax.xml.stream.XMLInputFactory.newInstance(String,ClassLoader) */ public static XMLInputFactory newInstance(String factoryId, ClassLoader classLoader) throws FactoryConfigurationError { return XMLInputFactory.newInstance(factoryId, classLoader); } /** * Creates a new stream writer. */ public abstract XMLStreamWriter createXMLStreamWriter(Writer stream) throws XMLStreamException; /** * Creates a new stream writer. */ public abstract XMLStreamWriter createXMLStreamWriter(OutputStream stream) throws XMLStreamException; /** * Creates a new stream writer. */ public abstract XMLStreamWriter createXMLStreamWriter(OutputStream stream, String encoding) throws XMLStreamException; /** * Creates a new stream writer. * @exception UnsupportedOperationException if this method is not * supported */ public abstract XMLStreamWriter createXMLStreamWriter(Result result) throws XMLStreamException; /** * Creates a new event writer. * @exception UnsupportedOperationException if this method is not * supported */ public abstract XMLEventWriter createXMLEventWriter(Result result) throws XMLStreamException; /** * Creates a new event writer. */ public abstract XMLEventWriter createXMLEventWriter(OutputStream stream) throws XMLStreamException; /** * Creates a new event writer. */ public abstract XMLEventWriter createXMLEventWriter(OutputStream stream, String encoding) throws XMLStreamException; /** * Creates a new event writer. */ public abstract XMLEventWriter createXMLEventWriter(Writer stream) throws XMLStreamException; /** * Sets the implementation-specific property of the given name. * @exception IllegalArgumentException if the property is not supported */ public abstract void setProperty(String name, Object value) throws IllegalArgumentException; /** * Returns the implementation-specific property of the given name. * @exception IllegalArgumentException if the property is not supported */ public abstract Object getProperty(String name) throws IllegalArgumentException; /** * Indicates whether the specified property is supported. */ public abstract boolean isPropertySupported(String name); }