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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.policy.security.jaas;
import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
import static javax.xml.stream.XMLStreamConstants.START_ELEMENT;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
import org.apache.tuscany.sca.contribution.processor.ContributionResolveException;
import org.apache.tuscany.sca.contribution.processor.ContributionWriteException;
import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
import org.apache.tuscany.sca.contribution.resolver.ClassReference;
import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
import org.apache.tuscany.sca.core.FactoryExtensionPoint;
import org.apache.tuscany.sca.monitor.Monitor;
import org.apache.tuscany.sca.monitor.Problem;
import org.apache.tuscany.sca.monitor.Problem.Severity;
/**
*
* @version $Rev$ $Date$
*/
public class JaasAuthenticationPolicyProcessor implements StAXArtifactProcessor<JaasAuthenticationPolicy> {
private static final QName JAAS_AUTHENTICATION_POLICY_QNAME = JaasAuthenticationPolicy.NAME;
private static final String callbackHandler = "callbackHandler";
private static final String SCA10_TUSCANY_NS = "http://tuscany.apache.org/xmlns/sca/1.1";
public static final QName CALLBACK_HANDLER_QNAME = new QName(SCA10_TUSCANY_NS, callbackHandler);
public static final QName CONFIGURATION_QNAME = new QName(SCA10_TUSCANY_NS, "configurationName");
public QName getArtifactType() {
return JAAS_AUTHENTICATION_POLICY_QNAME;
}
public JaasAuthenticationPolicyProcessor(FactoryExtensionPoint modelFactories) {
}
/**
* Report a error.
*
* @param problems
* @param message
* @param model
*/
private void error(Monitor monitor, String message, Object model, Object... messageParameters) {
if (monitor != null) {
Problem problem = monitor.createProblem(this.getClass().getName(), "policy-security-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters);
monitor.problem(problem);
}
}
public JaasAuthenticationPolicy read(XMLStreamReader reader, ProcessorContext context) throws ContributionReadException, XMLStreamException {
JaasAuthenticationPolicy policy = new JaasAuthenticationPolicy();
int event = reader.getEventType();
QName name = null;
while (reader.hasNext()) {
event = reader.getEventType();
switch (event) {
case START_ELEMENT : {
name = reader.getName();
if (name.equals(CALLBACK_HANDLER_QNAME)) {
String callbackHandlerClassName = reader.getElementText();
if (callbackHandlerClassName != null) {
policy.setCallbackHandlerClassName(callbackHandlerClassName.trim());
}
}
if (name.equals(CONFIGURATION_QNAME)) {
String configurationName = reader.getElementText();
if (configurationName != null) {
policy.setConfigurationName(configurationName.trim());
}
}
break;
}
}
if ( event == END_ELEMENT ) {
if ( JAAS_AUTHENTICATION_POLICY_QNAME.equals(reader.getName()) ) {
break;
}
}
//Read the next element
if (reader.hasNext()) {
reader.next();
}
}
return policy;
}
public void write(JaasAuthenticationPolicy policy, XMLStreamWriter writer, ProcessorContext context) throws ContributionWriteException,
XMLStreamException {
String prefix = "tuscany";
writer.writeStartElement(prefix,
JAAS_AUTHENTICATION_POLICY_QNAME.getLocalPart(),
JAAS_AUTHENTICATION_POLICY_QNAME.getNamespaceURI());
writer.writeNamespace("tuscany", SCA10_TUSCANY_NS);
writer.writeEndElement();
}
public Class<JaasAuthenticationPolicy> getModelType() {
return JaasAuthenticationPolicy.class;
}
public void resolve(JaasAuthenticationPolicy policy, ModelResolver resolver, ProcessorContext context) throws ContributionResolveException {
if (policy.getCallbackHandlerClassName() != null) {
ClassReference classReference = new ClassReference(policy.getCallbackHandlerClassName());
classReference = resolver.resolveModel(ClassReference.class, classReference, context);
Class<?> callbackClass = classReference.getJavaClass();
if (callbackClass == null) {
error(context.getMonitor(), "ClassNotFoundException", resolver, policy.getCallbackHandlerClassName());
//throw new ContributionResolveException(new ClassNotFoundException(policy.getCallbackHandlerClassName()));
} else {
policy.setCallbackHandlerClass(callbackClass);
policy.setUnresolved(false);
}
}
}
}
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