Merged gcj-eclipse branch to trunk.

[pf3gnuchains/gcc-fork.git] / libjava / classpath / gnu / xml / transform / SAXTemplatesHandler.java

diff --git a/libjava/classpath/gnu/xml/transform/SAXTemplatesHandler.java b/libjava/classpath/gnu/xml/transform/SAXTemplatesHandler.java
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+/* SAXTemplatesHandler.java -- 
+   Copyright (C) 2006 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 gnu.xml.transform;
+
+import javax.xml.transform.Templates;
+import javax.xml.transform.TransformerConfigurationException;
+import javax.xml.transform.dom.DOMSource;
+import javax.xml.transform.sax.TemplatesHandler;
+import org.w3c.dom.Document;
+import gnu.xml.dom.ls.SAXEventSink;
+
+/**
+ * A content handler that acts as a sink for SAX parse events,
+ * constructing an XSL stylesheet.
+ * Internally, this class simply creates a DOM tree from the events,
+ * and then parses the DOM into a Templates object.
+ *
+ * @author Chris Burdess (dog@gnu.org)
+ */
+class SAXTemplatesHandler
+  extends SAXEventSink
+  implements TemplatesHandler
+{
+
+  final TransformerFactoryImpl factory;
+  String systemId;
+
+  SAXTemplatesHandler(TransformerFactoryImpl factory)
+  {
+    this.factory = factory;
+  }
+
+  public String getSystemId()
+  {
+    return systemId;
+  }
+
+  public void setSystemId(String systemId)
+  {
+    this.systemId = systemId;
+  }
+
+  public Templates getTemplates()
+  {
+    Document doc = getDocument();
+    if (doc == null)
+      throw new IllegalStateException("Parsing of stylesheet incomplete");
+    DOMSource ds = new DOMSource(doc, systemId);
+    try
+      {
+        return factory.newTemplates(ds);
+      }
+    catch (TransformerConfigurationException e)
+      {
+        String msg = "Unable to construct templates from this event stream";
+        IllegalStateException e2 = new IllegalStateException(msg);
+        e2.initCause(e);
+        throw e2;
+      }
+  }
+
+}