Initial revision

From-SVN: r102074

libjava/classpath/gnu/xml/transform/CallTemplateNode.java

@@ -0,0 +1,165 @@
+/* CallTemplateNode.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., 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 java.util.ArrayList;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+import javax.xml.namespace.QName;
+import javax.xml.transform.TransformerException;
+import org.w3c.dom.Node;
+
+/**
+ * A template node representing the XSL <code>call-template</code>
+ * instruction.
+ *
+ * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
+ */
+final class CallTemplateNode
+  extends TemplateNode
+{
+
+  final QName name;
+  final List withParams;
+
+  CallTemplateNode(QName name, List withParams)
+  {
+    this.name = name;
+    this.withParams = withParams;
+  }
+
+  TemplateNode clone(Stylesheet stylesheet)
+  {
+    int len = withParams.size();
+    List withParams2 = new ArrayList(len);
+    for (int i = 0; i < len; i++)
+      {
+        withParams2.add(((WithParam) withParams.get(i)).clone(stylesheet));
+      }
+    TemplateNode ret = new CallTemplateNode(name, withParams2);
+    if (children != null)
+      {
+        ret.children = children.clone(stylesheet);
+      }
+    if (next != null)
+      {
+        ret.next = next.clone(stylesheet);
+      }
+    return ret;
+  }
+
+  void doApply(Stylesheet stylesheet, QName mode,
+               Node context, int pos, int len,
+               Node parent, Node nextSibling)
+    throws TransformerException
+  {
+    if (withParams != null)
+      {
+        // compute the parameter values
+        LinkedList values = new LinkedList();
+        for (Iterator i = withParams.iterator(); i.hasNext(); )
+          {
+            WithParam p = (WithParam) i.next();
+            Object value = p.getValue(stylesheet, mode, context, pos, len);
+            Object[] pair = new Object[2];
+            pair[0] = p.name;
+            pair[1] = value;
+            values.add(pair);
+          }
+        // push the parameter context
+        stylesheet.bindings.push(Bindings.WITH_PARAM);
+        // set the parameters
+        for (Iterator i = values.iterator(); i.hasNext(); )
+          {
+            Object[] pair = (Object[]) i.next();
+            QName name = (QName) pair[0];
+            Object value = pair[1];
+            stylesheet.bindings.set(name, value, Bindings.WITH_PARAM);
+            if (stylesheet.debug)
+              {
+                System.err.println("with-param: " + name + " = " + value);
+              }
+          }
+      }
+    TemplateNode t = stylesheet.getTemplate(mode, name);
+    if (t != null)
+      {
+        t.apply(stylesheet, mode, context, pos, len,
+                parent, nextSibling);
+      }
+    if (withParams != null)
+      {
+        // pop the variable context
+        stylesheet.bindings.pop(Bindings.WITH_PARAM);
+      }
+    // call-template doesn't have processable children
+    if (next != null)
+      {
+        next.apply(stylesheet, mode,
+                   context, pos, len,
+                   parent, nextSibling);
+      }
+  }
+  
+  public boolean references(QName var)
+  {
+    if (withParams != null)
+      {
+        for (Iterator i = withParams.iterator(); i.hasNext(); )
+          {
+            if (((WithParam) i.next()).references(var))
+              {
+                return true;
+              }
+          }
+      }
+    return super.references(var);
+  }
+  
+  public String toString()
+  {
+    StringBuffer buf = new StringBuffer(getClass().getName());
+    buf.append('[');
+    buf.append("name=");
+    buf.append(name);
+    buf.append(']');
+    return buf.toString();
+  }
+  
+}