Initial revision
From-SVN: r102074
This commit is contained in:
Tom Tromey
parent
6f4434b39b
commit
f911ba985a
4557 changed files with 1000262 additions and 0 deletions
325
libjava/classpath/gnu/xml/transform/Bindings.java
Normal file
325
libjava/classpath/gnu/xml/transform/Bindings.java
Normal file
|
|
@ -0,0 +1,325 @@
|
|||
/* Bindings.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.Collection;
|
||||
import java.util.Collections;
|
||||
import java.util.HashMap;
|
||||
import java.util.HashSet;
|
||||
import java.util.Iterator;
|
||||
import java.util.LinkedList;
|
||||
import java.util.Map;
|
||||
import javax.xml.namespace.QName;
|
||||
import javax.xml.xpath.XPathVariableResolver;
|
||||
import org.w3c.dom.Node;
|
||||
|
||||
/**
|
||||
* The set of variable bindings in effect for a stylesheet.
|
||||
*
|
||||
* @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
|
||||
*/
|
||||
public class Bindings
|
||||
implements XPathVariableResolver, Cloneable
|
||||
{
|
||||
|
||||
static final int VARIABLE = 0;
|
||||
static final int PARAM = 1;
|
||||
static final int WITH_PARAM = 2;
|
||||
|
||||
final Stylesheet stylesheet;
|
||||
|
||||
/**
|
||||
* Global variables.
|
||||
*/
|
||||
final LinkedList variables;
|
||||
|
||||
/**
|
||||
* Parameter value stack.
|
||||
*/
|
||||
final LinkedList parameters;
|
||||
|
||||
/**
|
||||
* Argument (with-param) value stack.
|
||||
*/
|
||||
final LinkedList withParameters;
|
||||
|
||||
Bindings(Stylesheet stylesheet)
|
||||
{
|
||||
this.stylesheet = stylesheet;
|
||||
variables = new LinkedList();
|
||||
parameters = new LinkedList();
|
||||
withParameters = new LinkedList();
|
||||
for (int i = 0; i < 3; i++)
|
||||
{
|
||||
push(i);
|
||||
}
|
||||
}
|
||||
|
||||
public Object clone()
|
||||
{
|
||||
try
|
||||
{
|
||||
return (Bindings) super.clone();
|
||||
}
|
||||
catch (CloneNotSupportedException e)
|
||||
{
|
||||
throw new Error(e.getMessage());
|
||||
}
|
||||
}
|
||||
|
||||
void push(int type)
|
||||
{
|
||||
switch (type)
|
||||
{
|
||||
case VARIABLE:
|
||||
variables.addFirst(new HashMap());
|
||||
break;
|
||||
case PARAM:
|
||||
parameters.addFirst(new HashMap());
|
||||
break;
|
||||
case WITH_PARAM:
|
||||
withParameters.addFirst(new HashMap());
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void pop(int type)
|
||||
{
|
||||
switch (type)
|
||||
{
|
||||
case VARIABLE:
|
||||
variables.removeFirst();
|
||||
break;
|
||||
case PARAM:
|
||||
parameters.removeFirst();
|
||||
break;
|
||||
case WITH_PARAM:
|
||||
withParameters.removeFirst();
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
public boolean containsKey(QName name, int type)
|
||||
{
|
||||
Iterator i = null;
|
||||
switch (type)
|
||||
{
|
||||
case VARIABLE:
|
||||
i = variables.iterator();
|
||||
break;
|
||||
case PARAM:
|
||||
i = parameters.iterator();
|
||||
break;
|
||||
case WITH_PARAM:
|
||||
Map ctx = (Map) withParameters.getFirst();
|
||||
return ctx.containsKey(name);
|
||||
}
|
||||
if (i != null)
|
||||
{
|
||||
while (i.hasNext())
|
||||
{
|
||||
Map ctx = (Map) i.next();
|
||||
if (ctx.containsKey(name))
|
||||
{
|
||||
return true;
|
||||
}
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
public Object get(QName name, Node context, int pos, int len)
|
||||
{
|
||||
//System.err.println("bindings.get: "+name);
|
||||
//System.err.println("\t"+toString());
|
||||
Object ret = null;
|
||||
//if (parameters.size() > 1 && containsKey(name, PARAM))
|
||||
// check that template defines parameter
|
||||
{
|
||||
Map cwp = (Map) withParameters.getFirst();
|
||||
ret = cwp.get(name);
|
||||
//System.err.println("\twith-param: ret="+ret);
|
||||
}
|
||||
if (ret == null)
|
||||
{
|
||||
for (Iterator i = variables.iterator(); i.hasNext() && ret == null; )
|
||||
{
|
||||
Map vctx = (Map) i.next();
|
||||
ret = vctx.get(name);
|
||||
}
|
||||
//System.err.println("\tvariable: ret="+ret);
|
||||
}
|
||||
if (ret == null)
|
||||
{
|
||||
for (Iterator i = parameters.iterator(); i.hasNext() && ret == null; )
|
||||
{
|
||||
Map pctx = (Map) i.next();
|
||||
ret = pctx.get(name);
|
||||
}
|
||||
//System.err.println("\tparam: ret="+ret);
|
||||
}
|
||||
/*if (ret instanceof Expr && context != null)
|
||||
{
|
||||
Expr expr = (Expr) ret;
|
||||
ret = expr.evaluate(context, 1, 1);
|
||||
}*/
|
||||
if (ret instanceof Node)
|
||||
{
|
||||
ret = Collections.singleton(ret);
|
||||
}
|
||||
if (ret == null)
|
||||
{
|
||||
ret = "";
|
||||
}
|
||||
//System.err.println("\tret="+ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
void set(QName name, Object value, int type)
|
||||
{
|
||||
switch (type)
|
||||
{
|
||||
case VARIABLE:
|
||||
Map vctx = (Map) variables.getFirst();
|
||||
vctx.put(name, value);
|
||||
break;
|
||||
case PARAM:
|
||||
Map pctx = (Map) parameters.getFirst();
|
||||
pctx.put(name, value);
|
||||
break;
|
||||
case WITH_PARAM:
|
||||
Map wctx = (Map) withParameters.getFirst();
|
||||
wctx.put(name, value);
|
||||
break;
|
||||
}
|
||||
//System.err.println("Set "+name+"="+value);
|
||||
}
|
||||
|
||||
public Object resolveVariable(QName qName)
|
||||
{
|
||||
return get(qName, null, 1, 1);
|
||||
}
|
||||
|
||||
public String toString()
|
||||
{
|
||||
StringBuffer buf = new StringBuffer();
|
||||
boolean next = false;
|
||||
Collection seen = new HashSet();
|
||||
Map wctx = (Map) withParameters.getFirst();
|
||||
buf.append('(');
|
||||
for (Iterator i = wctx.entrySet().iterator(); i.hasNext(); )
|
||||
{
|
||||
if (next)
|
||||
{
|
||||
buf.append(',');
|
||||
}
|
||||
else
|
||||
{
|
||||
next = true;
|
||||
}
|
||||
Map.Entry entry = (Map.Entry) i.next();
|
||||
Object key = entry.getKey();
|
||||
if (!seen.contains(key))
|
||||
{
|
||||
buf.append(key);
|
||||
buf.append('=');
|
||||
buf.append(entry.getValue());
|
||||
seen.add(key);
|
||||
}
|
||||
}
|
||||
buf.append(')');
|
||||
next = false;
|
||||
seen.clear();
|
||||
buf.append('{');
|
||||
for (Iterator i = variables.iterator(); i.hasNext(); )
|
||||
{
|
||||
Map ctx = (Map) i.next();
|
||||
for (Iterator j = ctx.entrySet().iterator(); j.hasNext(); )
|
||||
{
|
||||
if (next)
|
||||
{
|
||||
buf.append(',');
|
||||
}
|
||||
else
|
||||
{
|
||||
next = true;
|
||||
}
|
||||
Map.Entry entry = (Map.Entry) j.next();
|
||||
Object key = entry.getKey();
|
||||
if (!seen.contains(key))
|
||||
{
|
||||
buf.append(key);
|
||||
buf.append('=');
|
||||
buf.append(entry.getValue());
|
||||
seen.add(key);
|
||||
}
|
||||
}
|
||||
}
|
||||
buf.append('}');
|
||||
next = false;
|
||||
seen.clear();
|
||||
buf.append('[');
|
||||
for (Iterator i = parameters.iterator(); i.hasNext(); )
|
||||
{
|
||||
Map ctx = (Map) i.next();
|
||||
for (Iterator j = ctx.entrySet().iterator(); j.hasNext(); )
|
||||
{
|
||||
if (next)
|
||||
{
|
||||
buf.append(',');
|
||||
}
|
||||
else
|
||||
{
|
||||
next = true;
|
||||
}
|
||||
Map.Entry entry = (Map.Entry) j.next();
|
||||
Object key = entry.getKey();
|
||||
if (!seen.contains(key))
|
||||
{
|
||||
buf.append(key);
|
||||
buf.append('=');
|
||||
buf.append(entry.getValue());
|
||||
seen.add(key);
|
||||
}
|
||||
}
|
||||
}
|
||||
buf.append(']');
|
||||
return buf.toString();
|
||||
}
|
||||
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue