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+/* SAXParser.java -- 
+   Copyright (C) 2004 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., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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.parsers;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.InputStream;
+import java.io.IOException;
+import javax.xml.validation.Schema;
+import org.xml.sax.HandlerBase;
+import org.xml.sax.InputSource;
+import org.xml.sax.Parser;
+import org.xml.sax.SAXException;
+import org.xml.sax.SAXNotRecognizedException;
+import org.xml.sax.SAXNotSupportedException;
+import org.xml.sax.XMLReader;
+import org.xml.sax.helpers.DefaultHandler;
+
+/**
+ * Convenience class for using or accessing a SAX version 1 or 2 parser.
+ * Instances of this class are <em>not</em> guaranteed to be thread safe.
+ *
+ * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
+ */
+public abstract class SAXParser
+{
+  
+  protected SAXParser()
+  {
+  }
+
+  /**
+   * Parse the specifed input stream, reporting SAX1 events to the given
+   * handler.
+   * Prefer the SAX2 version of this method, since the HandlerBase class is
+   * now deprecated.
+   * Also prefer the version of this method that specifies a system ID, in
+   * order to resolve external references correctly.
+   * @param is an XML input stream
+   * @param hb the SAX1 handler
+   * @exception IllegalArgumentException if the input stream is null
+   * @see #parse(java.io.InputStream,org.xml.sax.helpers.DefaultHandler)
+   */
+  public void parse(InputStream is, HandlerBase hb) 
+    throws SAXException, IOException
+  {
+    if (is == null)
+      {
+        throw new IllegalArgumentException("input stream is null");
+      }
+    parse(new InputSource(is), hb);
+  }
+
+  /**
+   * Parse the specified input stream, reporting SAX1 events to the given
+   * handler.
+   * Prefer the SAX2 version of this method, since the HandlerBase class is
+   * now deprecated.
+   * @param is an XML input stream
+   * @param hb the SAX1 handler
+   * @param systemId the system ID of the XML document
+   * @exception IllegalArgumentException if the input stream is null
+   * @see #parse(java.io.InputStream,org.xml.sax.helpers.DefaultHandler,java.lang.String)
+   */
+  public void parse(InputStream is, HandlerBase hb, String systemId)
+     throws SAXException, IOException
+  {
+    if (is == null)
+      {
+        throw new IllegalArgumentException("input stream is null");
+      }
+    InputSource  source = new InputSource(is);
+    source.setSystemId(systemId);
+    parse(source, hb);
+  }
+
+  /**
+   * Parse the specified input stream, reporting SAX2 events to the given
+   * handler.
+   * Prefer the version of this method that specifies a system ID, in
+   * order to resolve external references correctly.
+   * @param is an XML input stream
+   * @param dh the SAX2 handler
+   * @exception IllegalArgumentException if the input stream is null
+   */
+  public void parse(InputStream is, DefaultHandler dh) 
+    throws SAXException, IOException
+  {
+    if (is == null)
+      {
+        throw new IllegalArgumentException("input stream is null");
+      }
+    parse(new InputSource(is), dh);
+  }
+
+  /**
+   * Parse the specified input stream, reporting SAX2 events to the given
+   * handler.
+   * @param is an XML input stream
+   * @param dh the SAX2 handler
+   * @param systemId the system ID of the XML document
+   * @exception IllegalArgumentException if the input stream is null
+   */
+  public void parse (InputStream is, DefaultHandler dh, String systemId)
+     throws SAXException, IOException
+  {
+    if (is == null)
+      {
+        throw new IllegalArgumentException("input stream is null");
+      }
+    InputSource  source = new InputSource(is);
+    source.setSystemId(systemId);
+    parse(source, dh);
+  }
+
+  /**
+   * Parse the content of the specified URI, reporting SAX1 events to the
+   * given handler.
+   * Prefer the SAX2 version of this method, since the HandlerBase class is
+   * now deprecated.
+   * @param uri an XML system ID
+   * @param hb the SAX1 handler
+   * @exception IllegalArgumentException if the URI is null
+   * @see #parse(java.lang.String,org.xml.sax.helpers.DefaultHandler)
+   */
+  public void parse(String uri, HandlerBase hb) 
+    throws SAXException, IOException
+  {
+    if (uri == null)
+      {
+        throw new IllegalArgumentException("URI is null");
+      }
+    parse(new InputSource(uri), hb);
+  }
+
+  /**
+   * Parse the content of the specified URI, reporting SAX2 events to the
+   * given handler.
+   * @param uri an XML system ID
+   * @param dh the SAX2 handler
+   * @exception IllegalArgumentException if the URI is null
+   */
+  public void parse(String uri, DefaultHandler dh) 
+    throws SAXException, IOException
+  {
+    if (uri == null)
+      {
+        throw new IllegalArgumentException("URI is null");
+      }
+    parse(new InputSource(uri), dh);
+  }
+
+  /**
+   * Parse the content of the specified file, reporting SAX1 events to the
+   * given handler.
+   * Prefer the SAX2 version of this method, since the HandlerBase class is
+   * now deprecated.
+   * @param f an XML file
+   * @param hb the SAX1 handler
+   * @exception IllegalArgumentException if the file is null
+   * @see #parse(java.io.File,org.xml.sax.helpers.DefaultHandler)
+   */
+  public void parse(File f, HandlerBase hb) 
+    throws SAXException, IOException
+  {
+    if (f == null)
+      {
+        throw new IllegalArgumentException("file is null");
+      }
+    InputSource source = new InputSource(new FileInputStream(f));
+    source.setSystemId(f.toURL().toString());
+    parse(source, hb);
+  }
+
+  /**
+   * Parse the content of the specified file, reporting SAX2 events to the
+   * given handler.
+   * @param f an XML file
+   * @param dh the SAX2 handler
+   * @exception IllegalArgumentException if the file is null
+   */
+  public void parse(File f, DefaultHandler dh) 
+    throws SAXException, IOException
+  {
+    if (f == null)
+      {
+        throw new IllegalArgumentException("file is null");
+      }
+    InputSource source = new InputSource(new FileInputStream(f));
+    source.setSystemId(f.toURL().toString());
+    parse(source, dh);
+  }
+
+  /**
+   * Parse the specified input source, reporting SAX1 events to the
+   * given handler.
+   * Prefer the SAX2 version of this method, since the HandlerBase class is
+   * now deprecated.
+   * @param is the SAX input source
+   * @param hb the SAX1 handler
+   * @exception IllegalArgumentException if the input source is null
+   * @see #parse(org.xml.sax.InputSource,org.xml.sax.helpers.DefaultHandler)
+   */
+  public void parse(InputSource is, HandlerBase hb) 
+    throws SAXException, IOException
+  {
+    if (is == null)
+      {
+        throw new IllegalArgumentException("input source is null");
+      }
+    Parser parser = getParser();
+    parser.setDocumentHandler(hb);
+    parser.setDTDHandler(hb);
+    parser.setEntityResolver(hb);
+    parser.setErrorHandler(hb);
+    parser.parse(is);
+  }
+
+  /**
+   * Parse the specified input source, reporting SAX2 events to the
+   * given handler.
+   * @param f an XML file
+   * @param dh the SAX2 handler
+   * @exception IllegalArgumentException if the input source is null
+   */
+  public void parse(InputSource is, DefaultHandler dh) 
+    throws SAXException, IOException
+  {
+    if (is == null)
+      {
+        throw new IllegalArgumentException("input source is null");
+      }
+    XMLReader reader = getXMLReader();
+    reader.setContentHandler(dh);
+    reader.setDTDHandler(dh);
+    reader.setEntityResolver(dh);
+    reader.setErrorHandler(dh);
+    reader.parse(is);
+  }
+
+  /**
+   * Returns the underlying SAX1 parser.
+   */
+  public abstract Parser getParser() throws SAXException;
+
+  /**
+   * Returns the underlying SAX2 parser.
+   * @since 1.1
+   */
+  public abstract XMLReader getXMLReader() throws SAXException;
+
+  /**
+   * Indicates whether this parser is XML Namespace aware.
+   */
+  public abstract boolean isNamespaceAware();
+
+  /**
+   * Indicates whether this parser will validate its input.
+   */
+  public abstract boolean isValidating();
+
+  /**
+   * Sets the specified SAX2 parser property.
+   * @param name the name of the property
+   * @param value the value of the property
+   */
+  public abstract void setProperty(String name, Object value) 
+    throws SAXNotRecognizedException, SAXNotSupportedException;
+
+  /**
+   * Returns the value of the specified SAX2 parser property.
+   * @param name the name of the property
+   */
+  public abstract Object getProperty(String name) 
+    throws SAXNotRecognizedException, SAXNotSupportedException;
+
+  // -- JAXP 1.3 methods --
+
+  /**
+   * Resets this parser to its original configuration.
+   * @since 1.3
+   */
+  public void reset()
+  {
+  }
+
+  /**
+   * Returns the schema in use by this parser.
+   * @since 1.3
+   */
+  public Schema getSchema()
+  {
+    return null;
+  }
+
+  /**
+   * Indicates whether this parser is XInclude-aware.
+   * @since 1.3
+   */
+  public boolean isXIncludeAware()
+  {
+    return false;
+  }
+  
+}