| /******************************************************************************* |
| * Copyright (c) 2013 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.ote.bytemessage; |
| |
| import java.util.Dictionary; |
| import java.util.HashMap; |
| import java.util.Hashtable; |
| import java.util.Map; |
| import java.util.UUID; |
| |
| import org.eclipse.ote.services.core.ServiceUtility; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.ServiceRegistration; |
| import org.osgi.service.event.Event; |
| import org.osgi.service.event.EventAdmin; |
| import org.osgi.service.event.EventHandler; |
| |
| public class OteByteMessageUtil { |
| |
| public static void sendEvent(OteByteMessage message) { |
| EventAdmin eventAdmin = ServiceUtility.getService(EventAdmin.class); |
| sendEvent(message, eventAdmin); |
| } |
| |
| public static void sendEvent(OteByteMessage message, EventAdmin eventAdmin) { |
| message.getHeader().UUID_HIGH.setNoLog((long) 0x0); |
| message.getHeader().UUID_LOW.setNoLog((long) 0x0); |
| Map<String, Object> data = new HashMap<String, Object>(); |
| data.put("bytes", message.getData()); |
| Event newevent = new Event(message.getHeader().TOPIC.getValue(), data); |
| eventAdmin.sendEvent(newevent); |
| } |
| |
| public static void postEvent(OteByteMessage message, EventAdmin eventAdmin) { |
| message.getHeader().UUID_HIGH.setNoLog((long) 0x0); |
| message.getHeader().UUID_LOW.setNoLog((long) 0x0); |
| Map<String, Object> data = new HashMap<String, Object>(); |
| data.put("bytes", message.getData()); |
| Event newevent = new Event(message.getHeader().TOPIC.getValue(), data); |
| eventAdmin.postEvent(newevent); |
| } |
| |
| public static UUID getUUID(OteByteMessage msg) { |
| return new UUID(msg.getHeader().UUID_HIGH.getValue(), msg.getHeader().UUID_LOW.getValue()); |
| } |
| |
| public static void setUUID(OteByteMessage msg, UUID id) { |
| msg.getHeader().UUID_HIGH.setValue(id.getMostSignificantBits()); |
| msg.getHeader().UUID_LOW.setValue(id.getLeastSignificantBits()); |
| } |
| |
| public static OteByteMessage getOteByteMessage(Event event) { |
| Object obj = event.getProperty("bytes"); |
| if (obj != null && obj instanceof byte[]) { |
| return new OteByteMessage((byte[]) obj); |
| } |
| return null; |
| } |
| |
| public static byte[] getBytes(Event event) { |
| Object obj = event.getProperty("bytes"); |
| if (obj != null && obj instanceof byte[]) { |
| return (byte[]) obj; |
| } else { |
| return null; |
| } |
| } |
| |
| public static void putBytes(Event event, OteByteMessage signal) { |
| signal.getDefaultMessageData().getMem().setData(getBytes(event)); |
| } |
| |
| public static ServiceRegistration<EventHandler> subscribe(String topic, EventHandler handler){ |
| Dictionary<String, String> props = new Hashtable<String, String>(); |
| props.put("event.topics", topic); |
| return ServiceUtility.getContext().registerService(EventHandler.class, handler, props); |
| } |
| |
| public static ServiceRegistration<EventHandler> subscribe(OteByteMessage signal, EventHandler eventHandler) { |
| BundleContext context = ServiceUtility.getContext(); |
| if (context == null) { |
| return null; |
| } |
| Hashtable<String, Object> props = new Hashtable<String, Object>(); |
| props.put("event.topics", signal.getHeader().TOPIC.getValue()); |
| return context.registerService(EventHandler.class, eventHandler, props); |
| } |
| |
| } |