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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.ote.client.msg.core.db;
import java.net.InetSocketAddress;
import java.util.HashSet;
import java.util.Set;
import org.eclipse.osee.ote.client.msg.core.internal.MessageServiceSupport;
import org.eclipse.osee.ote.message.Message;
import org.eclipse.osee.ote.message.commands.SubscribeToMessage;
import org.eclipse.osee.ote.message.commands.UnSubscribeToMessage;
import org.eclipse.osee.ote.message.enums.DataType;
import org.eclipse.osee.ote.message.interfaces.IMsgToolServiceClient;
import org.eclipse.osee.ote.message.tool.MessageMode;
import org.eclipse.osee.ote.message.tool.SubscriptionDetails;
import org.eclipse.osee.ote.message.tool.SubscriptionKey;
/**
* @author Ken J. Aguilar
*/
public class MessageInstance {
private final DataType type;
private final MessageMode mode;
private final Message msg;
private SubscriptionKey serverSubscriptionKey = null;
private int refcount = 0;
private boolean supported = true;
private volatile boolean connected = false;
public MessageInstance(Message msg, MessageMode mode, DataType type) {
this.msg = msg;
this.mode = mode;
this.type = type;
}
public Message getMessage() {
return msg;
}
public SubscriptionKey getServerSubscriptionKey() {
return serverSubscriptionKey;
}
public void setServerSubscriptionKey(SubscriptionKey serverSubscriptionKey) {
this.serverSubscriptionKey = serverSubscriptionKey;
}
public boolean isAttached() {
return serverSubscriptionKey != null;
}
public Integer attachToService(IMsgToolServiceClient client) throws Exception {
InetSocketAddress address = client.getAddressByType(msg.getClass().getName(), type);
SubscriptionDetails details;
if(address == null){
details = null;
} else {
details = MessageServiceSupport.subscribeToMessage(new SubscribeToMessage(msg.getClass().getName(), type, mode,
client.getAddressByType(msg.getClass().getName(), type), client.getTestSessionKey()));
}
if (details == null) {
supported = false;
return null;
}
supported = true;
msg.setData(details.getCurrentData());
connected = true;
serverSubscriptionKey = details.getKey();
return serverSubscriptionKey.getId();
}
public void detachService(IMsgToolServiceClient client) throws Exception {
if (supported) {
MessageServiceSupport.unsubscribeToMessage(new UnSubscribeToMessage(msg.getClass().getName(), mode, type,
client.getAddressByType(msg.getClass().getName(), type)));
}
connected = false;
serverSubscriptionKey = null;
}
public Integer getId() {
return serverSubscriptionKey != null ? serverSubscriptionKey.getId() : null;
}
public void incrementReferenceCount() {
refcount++;
}
public void decrementReferenceCount() {
refcount--;
}
public boolean hasReferences() {
return refcount > 0;
}
public DataType getType() {
return type;
}
public MessageMode getMode() {
return mode;
}
public Set<DataType> getAvailableTypes() {
HashSet<DataType> set = new HashSet<DataType>();
if(connected){
Set<? extends DataType> envSet = MessageServiceSupport.getAvailablePhysicalTypes();
Set<DataType> available = msg.getAssociatedMessages().keySet();
for(DataType type : available.toArray(new DataType[available.size()])){
if(envSet.contains(type)){
set.add(type);
}
}
}
return set;
}
public boolean isSupported() {
return supported;
}
@Override
public String toString() {
return String.format("Message Instance(type=%s, mode=%s, ref=%d, supported=%b)", type.name(), mode.name(),
refcount, supported);
}
}
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