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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.myfaces.trinidadinternal.share.xml;
import org.xml.sax.Locator;
import org.apache.myfaces.trinidadinternal.share.expl.ExpressionContext;
import org.apache.myfaces.trinidadinternal.share.expl.Function;
import org.apache.myfaces.trinidadinternal.share.expl.PrefixMapper;
import org.apache.myfaces.trinidadinternal.share.expl.NSFunctionMapper;
/**
* Wrapper class that turns a client-created ParseContext into
* one sufficient for ParseContextImpl
*
* @version $Name: $ ($Revision: adfrt/faces/adf-faces-impl/src/main/java/oracle/adfinternal/view/faces/share/xml/ParseContextWrapper.java#0 $) $Date: 10-nov-2005.18:59:12 $
*/
final class ParseContextWrapper implements ParseContext
{
/**
* Creates a ParseContext that uses the provided
* ParserManager to get NodeParsers.
*/
public ParseContextWrapper(
ParseContext base,
ParserManager manager,
XMLProvider provider)
{
_base = base;
_manager = manager;
_provider = provider;
final PrefixMapper pmapper = new PrefixMapper()
{
public String getNamespaceURI(String prefix)
{
return getParserManager().resolveNamespaceAlias
(_namespaces.getURI(prefix));
}
};
final NSFunctionMapper fmapper =
new NSFunctionMapper()
{
@Override
public Function resolveFunction(String namespaceURI,
String name)
{
return getParserManager().getFunction(namespaceURI, name);
}
};
_bindingContext = new ExpressionContext()
{
public NSFunctionMapper getFunctionMapper()
{
return fmapper;
}
public PrefixMapper getPrefixMapper()
{
return pmapper;
}
};
}
/**
* Returns the default node parser that shold be used
* for a specific element name, given the type of expected object.
*
* @param expectedType the Class of the Java object expected for this element
* @param namespaceURI the namespace of the XML element
* @param localName the local name of the XML element
*/
public NodeParser getParser(
Class expectedType,
String namespaceURI,
String localName)
{
return getParserManager().getParser(this,
expectedType,
namespaceURI,
localName);
}
/**
* Returns a parser extension.
*
* @param currentType the Class of the Java object being built
* @param namespaceURI the namespace of the XML element or attribute
*/
public ParserExtension getExtension(
String namespaceURI)
{
return getParserManager().getExtension(namespaceURI);
}
/**
* Returns the parser manager.
*/
public ParserManager getParserManager()
{
return _manager;
}
/**
* gets the bindingContext
*/
public ExpressionContext getExpressionContext()
{
return _bindingContext;
}
/**
* Convert a string prefix to a full namespace URI.
* @param prefix the string prefix of the namspace, or the empty
* string for the default namespace
* @return the URI of that namespace, or null if the prefix
* hasn't been mapped
* @deprecated since 2.2.0 use {@link #getExpressionContext()} and
* {@ExpressionContext#getPrefixMapper()}
*/
@Deprecated
public final String getNamespaceURI(String prefix)
{
return getExpressionContext().getPrefixMapper().getNamespaceURI(prefix);
}
/**
* Return a SAX Locator object for identifying the document location.
* @return a locator, or null if none is available
*/
public Locator getLocator()
{
return _locator;
}
/**
* Get an XMLProvider.
*/
public XMLProvider getXMLProvider()
{
return _provider;
}
/**
* Gets a property stored on the context.
*/
public Object getProperty(String namespace, Object key)
{
return _base.getProperty(namespace, key);
}
/**
* Stores a property on the context.
*/
public void setProperty(String namespace, Object key, Object value)
{
_base.setProperty(namespace, key, value);
}
/**
*
*/
@Override
public Object clone()
{
return _base.clone();
}
/**
* Set the locator. A callback used by TreeBuilder.
*/
void __setLocator(Locator locator)
{
_locator = locator;
}
/**
* A callback used by TreeBuilder.
*/
void __startElement()
{
if (!_contextPushed)
_namespaces.pushContext();
else
_contextPushed = false;
}
/**
* A callback used by TreeBuilder.
*/
void __endElement()
{
_namespaces.popContext();
}
/**
* A callback used by TreeBuilder.
*/
void __addPrefixMapping(
String prefix,
String namespaceURI)
{
if (!_contextPushed)
{
_contextPushed = true;
_namespaces.pushContext();
}
_namespaces.declarePrefix(prefix, namespaceURI);
}
ParseContext __getWrappedContext()
{
return _base;
}
private final ExpressionContext _bindingContext;
private final ParseContext _base;
private final ParserManager _manager;
private final XMLProvider _provider;
// A SAX helper object that keeps track of namespace prefixes
private NamespaceSupport _namespaces = new NamespaceSupport();
// Boolean to keep track of whether we've called "pushContext()" yet.
private boolean _contextPushed;
// The SAX locator
private Locator _locator;
}