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Micro Distribution of the Payara Project
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2016-2021 Payara Foundation and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://github.com/payara/Payara/blob/master/LICENSE.txt
* See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* The Payara Foundation designates this particular file as subject to the "Classpath"
* exception as provided by the Payara Foundation in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
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* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
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*/
package fish.payara.appserver.micro.services;
import com.sun.enterprise.util.Utility;
import fish.payara.micro.event.PayaraClusteredCDIEvent;
import fish.payara.appserver.micro.services.data.PayaraValueHolder;
import fish.payara.micro.data.InstanceDescriptor;
import java.io.IOException;
import java.io.Serializable;
import java.lang.annotation.Annotation;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.Collections;
import java.util.HashSet;
import java.util.Properties;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author Steve Millidge (Payara Services Limited)
*/
public class PayaraClusteredCDIEventImpl implements PayaraClusteredCDIEvent {
private static final long serialVersionUID = 1L;
private InstanceDescriptor id;
private boolean loopBack = false;
private PayaraValueHolder payload;
private Properties props;
private PayaraValueHolder> qualifiersPayload;
private transient Set qualifiers;
public PayaraClusteredCDIEventImpl(InstanceDescriptor id, Serializable payload) throws IOException {
this.id = id;
this.payload = new PayaraValueHolder<>(payload);
}
public PayaraClusteredCDIEventImpl(InstanceDescriptor id) {
this.id = id;
}
@Override
public InstanceDescriptor getInstanceDescriptor() {
return id;
}
void setInstanceDescriptor(InstanceDescriptor localDescriptor) {
id = localDescriptor;
}
@Override
public InstanceDescriptor getId() {
return id;
}
@Override
public void setId(InstanceDescriptor id) {
this.id = id;
}
@Override
public Serializable getPayload() throws IOException, ClassNotFoundException {
if (payload != null) {
return (Serializable) payload.getValue();
}
return null;
}
@Override
public boolean isLoopBack() {
return loopBack;
}
@Override
public void setLoopBack(boolean loopBack) {
this.loopBack = loopBack;
}
@Override
public Properties getProperties() {
return props;
}
@Override
public void setProperty(String name, String value) {
if (props == null) {
props = new Properties();
}
props.setProperty(name, value);
}
@Override
public String getProperty(String name) {
String result = null;
if (props!= null) {
result = props.getProperty(name);
}
return result;
}
@Override
public String getProperty(String name, String defaultValue) {
String result = null;
if (props!= null) {
result = props.getProperty(name, defaultValue);
}
return result;
}
@Override
public Set getQualifiers() {
if (qualifiers == null) {
try {
qualifiers = qualifiersPayload.getValue();
} catch (IOException | ClassNotFoundException ex) {
Logger.getLogger(PayaraClusteredCDIEventImpl.class.getName()).log(Level.INFO, "Unable to deserialize qualifiers received on the event ignoring...", ex);
}
}
if (qualifiers != null) {
Set result = new HashSet<>(qualifiers.size());
for (InvocationHandler qualifier : qualifiers) {
// ok we have the invocation handlers that have been serialized
// we now need to create a Proxy for each
// First find the type
Method methods[] = Annotation.class.getMethods();
Class annotationClazz = null;
for (Method method : methods) {
if (method.getName().equals("annotationType")) {
try {
annotationClazz = (Class) qualifier.invoke(null, method, new Object[0]);
// then create a proxy for the annotation type from the serialized Invocation Handler
result.add((Annotation) Proxy.newProxyInstance(Utility.getClassLoader(), new Class[]{annotationClazz}, qualifier));
} catch (Throwable ex) {
Logger.getLogger(PayaraClusteredCDIEventImpl.class.getName()).log(Level.INFO,
"Problem determining the qualifier type of an Event, ignoring", ex);
}
}
}
}
return result;
} else {
return Collections.emptySet();
}
}
@Override
public void addQualifiers(Set add) throws IOException {
if (qualifiers == null) {
qualifiers = new HashSet<>(add.size());
}
// we can't serialize the Proxies as we will receive a CNFE
// However we can serialize the Invocation Handlers and then recreate the Proxies
for (Annotation annotation : add) {
if (Proxy.isProxyClass(annotation.getClass())) {
InvocationHandler handler = Proxy.getInvocationHandler(annotation);
qualifiers.add(handler);
}
}
// We need to use a Payara Value Holder to prevent Hazelcast Serialization Errors
qualifiersPayload = new PayaraValueHolder<>(qualifiers);
}
}