/* JBoss, Home of Professional Open Source
* Copyright 2008, Red Hat, Inc., and others contributors as indicated
* by the @authors tag. All rights reserved.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General public License, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General public License for more details.
* You should have received a copy of the GNU Lesser General public License,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
package org.jboss.narayana.blacktie.jatmibroker.nbf;
import java.io.ByteArrayInputStream;
import java.io.File;
import javax.xml.XMLConstants;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import javax.xml.transform.stream.StreamSource;
import javax.xml.validation.Schema;
import javax.xml.validation.SchemaFactory;
import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;
import org.jboss.narayana.blacktie.jatmibroker.xatmi.Connection;
import org.jboss.narayana.blacktie.jatmibroker.xatmi.ConnectionException;
import org.xml.sax.SAXException;
import org.apache.xerces.xs.PSVIProvider;
public class NestedBufferParser {
private NestedBufferHandlers handler;
private SAXParser saxParser;
private Schema schema;
private static final Logger log = LogManager.getLogger(NestedBufferParser.class);
public NestedBufferParser(String xsdFilename) throws ConnectionException {
try {
// Obtain a new instance of a SAXParserFactory.
SAXParserFactory factory = SAXParserFactory.newInstance();
factory.setNamespaceAware(true);
factory.setValidating(true);
SchemaFactory schemaFactory = SchemaFactory
.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
factory.setFeature("http://apache.org/xml/features/validation/schema",
true);
File file = new File(xsdFilename);
if (file.exists()) {
schema = schemaFactory.newSchema(file);
} else {
throw new ConnectionException(Connection.TPEOS,
"Could not find " + xsdFilename);
}
factory.setSchema(schema);
saxParser = factory.newSAXParser();
PSVIProvider p = (PSVIProvider) saxParser.getXMLReader();
handler = new NestedBufferHandlers(p);
}catch (SAXException e) {
log.error("Could not create a SAXParser: " + e.getMessage(), e);
throw new ConnectionException(Connection.TPEOS,
"Could not create a SAXParser: " + e.getMessage());
} catch (ParserConfigurationException e) {
log.error("Could not create a SAXParser: " + e.getMessage(), e);
throw new ConnectionException(Connection.TPEOS,
"Could not create a SAXParser: " + e.getMessage());
} catch (Throwable e) {
log.error("Could not create a SAXParser: " + e.getMessage(), e);
throw new ConnectionException(Connection.TPEOS,
"Could not create a SAXParser: " + e.getMessage());
}
}
public void setId(String id) {
handler.setId(id);
}
public void setIndex(int index) {
handler.setIndex(index);
}
public String getType() {
return handler.getType();
}
public String getValue() {
return handler.getValue();
}
public boolean parse(byte[] buffer) throws ConnectionException {
boolean result = false;
try {
schema.newValidator().validate(new StreamSource(
new ByteArrayInputStream(buffer)));
saxParser.parse(new ByteArrayInputStream(buffer), handler);
result = true;
} catch (Throwable e) {
log.error("Parser buffer failed with " + e.getMessage(), e);
throw new ConnectionException(Connection.TPEOS,
"Parser buffer failed with " + e.getMessage());
}
return result;
}
}