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First experimentation about Write Attributes support at cliend side.
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109 changes: 109 additions & 0 deletions
109
...ient-core/src/main/java/org/eclipse/leshan/client/notification/NotificationDataStore.java
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| /******************************************************************************* | ||
| * Copyright (c) 2023 Sierra Wireless and others. | ||
| * | ||
| * All rights reserved. This program and the accompanying materials | ||
| * are made available under the terms of the Eclipse Public License v2.0 | ||
| * and Eclipse Distribution License v1.0 which accompany this distribution. | ||
| * | ||
| * The Eclipse Public License is available at | ||
| * http://www.eclipse.org/legal/epl-v20.html | ||
| * and the Eclipse Distribution License is available at | ||
| * http://www.eclipse.org/org/documents/edl-v10.html. | ||
| * | ||
| * Contributors: | ||
| * Sierra Wireless - initial API and implementation | ||
| *******************************************************************************/ | ||
| package org.eclipse.leshan.client.notification; | ||
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| import java.util.concurrent.ScheduledFuture; | ||
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| import org.eclipse.leshan.client.servers.LwM2mServer; | ||
| import org.eclipse.leshan.core.link.lwm2m.attributes.LwM2mAttributeSet; | ||
| import org.eclipse.leshan.core.node.LwM2mNode; | ||
| import org.eclipse.leshan.core.request.ObserveRequest; | ||
|
|
||
| /** | ||
| * This class store information needed to handle write attributes behavior. | ||
| * <p> | ||
| * It is used by {@link NotificationManager} | ||
| */ | ||
| public class NotificationDataStore { | ||
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| // TODO create a real data structure | ||
| // for testing purpose we only store 1 NotificationData | ||
| private NotificationData data; | ||
|
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| public NotificationData getNotificationData(LwM2mServer server, ObserveRequest request) { | ||
| return data; | ||
| } | ||
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| public NotificationData addNotificationData(LwM2mServer server, ObserveRequest request, NotificationData data) { | ||
| // cancel task of previous data | ||
| NotificationData previousData = this.data; | ||
| if (previousData != null) { | ||
| if (previousData.getPminFuture() != null) { | ||
| previousData.getPminFuture().cancel(false); | ||
| } | ||
| if (previousData.getPmaxFuture() != null) { | ||
| previousData.getPmaxFuture().cancel(false); | ||
| } | ||
| } | ||
| // update data | ||
| this.data = data; | ||
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| return previousData; | ||
| } | ||
|
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| public static class NotificationData { | ||
| private final LwM2mAttributeSet attributes; | ||
| private final Long lastSendingTime; // time of last sent notification | ||
| private final LwM2mNode lastSentValue; // last value sent | ||
| private final ScheduledFuture<Void> pminTask; // task which will send delayed notification for pmin. | ||
| private final ScheduledFuture<Void> pmaxTask; // task which will send delayed notification for pmax. | ||
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| public NotificationData(LwM2mAttributeSet attributes, Long lastSendingTime, LwM2mNode lastSentValue, | ||
| ScheduledFuture<Void> nextNotification) { | ||
| this.attributes = attributes; | ||
| this.lastSendingTime = lastSendingTime; | ||
| this.lastSentValue = lastSentValue; | ||
| this.pminTask = null; | ||
| this.pmaxTask = nextNotification; | ||
| } | ||
|
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| public NotificationData(NotificationData previous, ScheduledFuture<Void> pminTask) { | ||
| this.attributes = previous.getAttributes(); | ||
| this.lastSendingTime = previous.getLastSendingTime(); | ||
| this.lastSentValue = previous.getLastSentValue(); | ||
| this.pminTask = pminTask; | ||
| this.pmaxTask = previous.getPmaxFuture(); | ||
| } | ||
|
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| public LwM2mAttributeSet getAttributes() { | ||
| return attributes; | ||
| } | ||
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| public Long getLastSendingTime() { | ||
| return lastSendingTime; | ||
| } | ||
|
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| public LwM2mNode getLastSentValue() { | ||
| return lastSentValue; | ||
| } | ||
|
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| public ScheduledFuture<Void> getPminFuture() { | ||
| return pminTask; | ||
| } | ||
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| public ScheduledFuture<Void> getPmaxFuture() { | ||
| return pmaxTask; | ||
| } | ||
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| public boolean usePmin() { | ||
| return lastSendingTime != null; | ||
| } | ||
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| public boolean pminTaskScheduled() { | ||
| return pminTask != null; | ||
| } | ||
| } | ||
| } |
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