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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.tuscany.sca.contribution.processor;
import java.io.InputStream;
import java.io.Reader;
import java.net.URL;
import java.util.List;
import javax.xml.XMLConstants;
import javax.xml.stream.EventFilter;
import javax.xml.stream.StreamFilter;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLReporter;
import javax.xml.stream.XMLResolver;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.util.XMLEventAllocator;
import javax.xml.transform.Source;
import javax.xml.transform.stream.StreamSource;
import javax.xml.validation.Schema;
import javax.xml.validation.SchemaFactory;
import org.xml.sax.SAXParseException;
/**
* Default implementation of an XMLInputFactory that creates validating
* XMLStreamReaders.
*
* @version $Rev$ $Date$
*/
public class DefaultValidatingXMLInputFactory extends ValidatingXMLInputFactory {
private XMLInputFactory inputFactory;
private ValidationSchemaExtensionPoint schemas;
private boolean initialized;
private Schema aggregatedSchema;
/**
* Constructs a new XMLInputFactory.
*
* @param inputFactory
* @param schemas
*/
public DefaultValidatingXMLInputFactory(XMLInputFactory inputFactory, ValidationSchemaExtensionPoint schemas) {
this.inputFactory = inputFactory;
this.schemas = schemas;
}
private void initialize() {
if (initialized) {
return;
}
initialized = true;
// Load the XSDs registered in the validation schema extension point
try {
List<String> uris = schemas.getSchemas();
int n = uris.size();
Source[] sources = new Source[n];
for (int i =0; i < n; i++) {
String uri = uris.get(i);
sources[i] = new StreamSource(new URL(uri).openStream(), uri);
}
// Create an aggregated validation schemas from all the XSDs
SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
aggregatedSchema= schemaFactory.newSchema(sources);
} catch (Error e) {
//FIXME Log this, some old JDKs don't support XMLSchema validation
//e.printStackTrace();
} catch (SAXParseException e) {
throw new IllegalStateException(e);
} catch (Exception e) {
//FIXME Log this, some old JDKs don't support XMLSchema validation
e.printStackTrace();
}
}
public XMLEventReader createFilteredReader(XMLEventReader arg0, EventFilter arg1) throws XMLStreamException {
return inputFactory.createFilteredReader(arg0, arg1);
}
public XMLStreamReader createFilteredReader(XMLStreamReader arg0, StreamFilter arg1) throws XMLStreamException {
return inputFactory.createFilteredReader(arg0, arg1);
}
public XMLEventReader createXMLEventReader(InputStream arg0, String arg1) throws XMLStreamException {
return inputFactory.createXMLEventReader(arg0, arg1);
}
public XMLEventReader createXMLEventReader(InputStream arg0) throws XMLStreamException {
return inputFactory.createXMLEventReader(arg0);
}
public XMLEventReader createXMLEventReader(Reader arg0) throws XMLStreamException {
return inputFactory.createXMLEventReader(arg0);
}
public XMLEventReader createXMLEventReader(Source arg0) throws XMLStreamException {
return inputFactory.createXMLEventReader(arg0);
}
public XMLEventReader createXMLEventReader(String arg0, InputStream arg1) throws XMLStreamException {
return inputFactory.createXMLEventReader(arg0, arg1);
}
public XMLEventReader createXMLEventReader(String arg0, Reader arg1) throws XMLStreamException {
return inputFactory.createXMLEventReader(arg0, arg1);
}
public XMLEventReader createXMLEventReader(XMLStreamReader arg0) throws XMLStreamException {
return inputFactory.createXMLEventReader(arg0);
}
public XMLStreamReader createXMLStreamReader(InputStream arg0, String arg1) throws XMLStreamException {
initialize();
return new ValidatingXMLStreamReader(inputFactory.createXMLStreamReader(arg0, arg1), aggregatedSchema);
}
public XMLStreamReader createXMLStreamReader(InputStream arg0) throws XMLStreamException {
initialize();
return new ValidatingXMLStreamReader(inputFactory.createXMLStreamReader(arg0), aggregatedSchema);
}
public XMLStreamReader createXMLStreamReader(Reader arg0) throws XMLStreamException {
initialize();
return new ValidatingXMLStreamReader(inputFactory.createXMLStreamReader(arg0), aggregatedSchema);
}
public XMLStreamReader createXMLStreamReader(Source arg0) throws XMLStreamException {
initialize();
return new ValidatingXMLStreamReader(inputFactory.createXMLStreamReader(arg0), aggregatedSchema);
}
public XMLStreamReader createXMLStreamReader(String arg0, InputStream arg1) throws XMLStreamException {
initialize();
return new ValidatingXMLStreamReader(inputFactory.createXMLStreamReader(arg0, arg1), aggregatedSchema);
}
public XMLStreamReader createXMLStreamReader(String arg0, Reader arg1) throws XMLStreamException {
initialize();
return new ValidatingXMLStreamReader(inputFactory.createXMLStreamReader(arg0, arg1), aggregatedSchema);
}
public XMLEventAllocator getEventAllocator() {
return inputFactory.getEventAllocator();
}
public Object getProperty(String arg0) throws IllegalArgumentException {
return inputFactory.getProperty(arg0);
}
public XMLReporter getXMLReporter() {
return inputFactory.getXMLReporter();
}
public XMLResolver getXMLResolver() {
return inputFactory.getXMLResolver();
}
public boolean isPropertySupported(String arg0) {
return inputFactory.isPropertySupported(arg0);
}
public void setEventAllocator(XMLEventAllocator arg0) {
inputFactory.setEventAllocator(arg0);
}
public void setProperty(String arg0, Object arg1) throws IllegalArgumentException {
inputFactory.setProperty(arg0, arg1);
}
public void setXMLReporter(XMLReporter arg0) {
inputFactory.setXMLReporter(arg0);
}
public void setXMLResolver(XMLResolver arg0) {
inputFactory.setXMLResolver(arg0);
}
}
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