nickAS21
5 years ago
10 changed files with 326 additions and 33 deletions
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/** |
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* Copyright © 2016-2021 The Thingsboard Authors |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.thingsboard.server.transport.lwm2m.server; |
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import lombok.extern.slf4j.Slf4j; |
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import org.eclipse.californium.core.coap.CoAP; |
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import org.eclipse.californium.core.coap.Response; |
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import org.eclipse.californium.core.server.resources.CoapExchange; |
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import org.eclipse.leshan.core.californium.LwM2mCoapResource; |
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import org.thingsboard.server.common.transport.TransportServiceCallback; |
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@Slf4j |
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public abstract class AbstractLwm2mTransportResource extends LwM2mCoapResource { |
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protected final LwM2mTransportMsgHandler handler; |
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public AbstractLwm2mTransportResource(LwM2mTransportMsgHandler handler, String name) { |
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super(name); |
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this.handler = handler; |
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} |
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@Override |
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public void handleGET(CoapExchange exchange) { |
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processHandleGet(exchange); |
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} |
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@Override |
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public void handlePOST(CoapExchange exchange) { |
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processHandlePost(exchange); |
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} |
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protected abstract void processHandleGet(CoapExchange exchange); |
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protected abstract void processHandlePost(CoapExchange exchange); |
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public static class CoapOkCallback implements TransportServiceCallback<Void> { |
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private final CoapExchange exchange; |
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private final CoAP.ResponseCode onSuccessResponse; |
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private final CoAP.ResponseCode onFailureResponse; |
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public CoapOkCallback(CoapExchange exchange, CoAP.ResponseCode onSuccessResponse, CoAP.ResponseCode onFailureResponse) { |
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this.exchange = exchange; |
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this.onSuccessResponse = onSuccessResponse; |
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this.onFailureResponse = onFailureResponse; |
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} |
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@Override |
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public void onSuccess(Void msg) { |
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Response response = new Response(onSuccessResponse); |
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response.setAcknowledged(isConRequest()); |
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exchange.respond(response); |
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} |
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@Override |
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public void onError(Throwable e) { |
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exchange.respond(onFailureResponse); |
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} |
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private boolean isConRequest() { |
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return exchange.advanced().getRequest().isConfirmable(); |
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} |
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} |
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public static class CoapNoOpCallback implements TransportServiceCallback<Void> { |
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private final CoapExchange exchange; |
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CoapNoOpCallback(CoapExchange exchange) { |
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this.exchange = exchange; |
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} |
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@Override |
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public void onSuccess(Void msg) { |
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} |
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@Override |
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public void onError(Throwable e) { |
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exchange.respond(CoAP.ResponseCode.INTERNAL_SERVER_ERROR); |
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} |
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} |
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} |
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@ -0,0 +1,145 @@ |
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/** |
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* Copyright © 2016-2021 The Thingsboard Authors |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.thingsboard.server.transport.lwm2m.server; |
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import lombok.extern.slf4j.Slf4j; |
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import org.eclipse.californium.core.coap.CoAP; |
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import org.eclipse.californium.core.coap.Request; |
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import org.eclipse.californium.core.coap.Response; |
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import org.eclipse.californium.core.network.Exchange; |
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import org.eclipse.californium.core.observe.ObserveRelation; |
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import org.eclipse.californium.core.server.resources.CoapExchange; |
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import org.eclipse.californium.core.server.resources.Resource; |
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import org.eclipse.californium.core.server.resources.ResourceObserver; |
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import java.util.UUID; |
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import java.util.concurrent.ConcurrentHashMap; |
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import java.util.concurrent.ConcurrentMap; |
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import java.util.concurrent.atomic.AtomicInteger; |
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@Slf4j |
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public class LwM2mTransportCoapResource extends AbstractLwm2mTransportResource { |
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private final ConcurrentMap<String, ObserveRelation> tokenToObserveRelationMap = new ConcurrentHashMap<>(); |
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private final ConcurrentMap<String, AtomicInteger> tokenToObserveNotificationSeqMap = new ConcurrentHashMap<>(); |
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public LwM2mTransportCoapResource(LwM2mTransportMsgHandler handler, String name) { |
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super(handler, name); |
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this.setObservable(true); // enable observing
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this.addObserver(new CoapResourceObserver()); |
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} |
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@Override |
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public void checkObserveRelation(Exchange exchange, Response response) { |
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String token = getTokenFromRequest(exchange.getRequest()); |
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final ObserveRelation relation = exchange.getRelation(); |
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if (relation == null || relation.isCanceled()) { |
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return; // because request did not try to establish a relation
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} |
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if (CoAP.ResponseCode.isSuccess(response.getCode())) { |
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if (!relation.isEstablished()) { |
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relation.setEstablished(); |
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addObserveRelation(relation); |
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} |
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AtomicInteger notificationCounter = tokenToObserveNotificationSeqMap.computeIfAbsent(token, s -> new AtomicInteger(0)); |
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response.getOptions().setObserve(notificationCounter.getAndIncrement()); |
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} // ObserveLayer takes care of the else case
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} |
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@Override |
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protected void processHandleGet(CoapExchange exchange) { |
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log.warn("1) processHandleGet [{}]", exchange); |
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// exchange.respond(CoAP.ResponseCode.BAD_REQUEST);
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// int ver = 10;
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int ver = 9; |
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UUID currentId; |
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if (ver == 10) { |
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long mSB = 4951557297924280811L; |
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long lSb = -8451242882176289074L; |
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currentId = new UUID(mSB, lSb); |
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} else { |
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long mSB = 9085827945869414891L; |
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long lSb = -9086716326447629319L; |
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currentId = new UUID(mSB, lSb); |
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} |
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String resource = exchange.getRequestOptions().getUriPath().get(0); |
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String token = exchange.getRequestOptions().getUriPath().get(1); |
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exchange.respond(CoAP.ResponseCode.CONTENT, this.getFwData(currentId)); |
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} |
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@Override |
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protected void processHandlePost(CoapExchange exchange) { |
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log.warn("2) processHandleGet [{}]", exchange); |
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} |
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/** |
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* Override the default behavior so that requests to sub resources (typically /{name}/{token}) are handled by |
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* /name resource. |
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*/ |
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@Override |
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public Resource getChild(String name) { |
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return this; |
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} |
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private String getTokenFromRequest(Request request) { |
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return (request.getSourceContext() != null ? request.getSourceContext().getPeerAddress().getAddress().getHostAddress() : "null") |
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+ ":" + (request.getSourceContext() != null ? request.getSourceContext().getPeerAddress().getPort() : -1) + ":" + request.getTokenString(); |
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} |
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public class CoapResourceObserver implements ResourceObserver { |
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@Override |
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public void changedName(String old) { |
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} |
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@Override |
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public void changedPath(String old) { |
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} |
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@Override |
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public void addedChild(Resource child) { |
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} |
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@Override |
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public void removedChild(Resource child) { |
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} |
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@Override |
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public void addedObserveRelation(ObserveRelation relation) { |
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} |
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@Override |
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public void removedObserveRelation(ObserveRelation relation) { |
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} |
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} |
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private byte[] getFwData(UUID currentId) { |
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int chunkSize = 0; |
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int chunk = 0; |
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return ((DefaultLwM2MTransportMsgHandler) handler).otaPackageDataCache.get(currentId.toString(), chunkSize, chunk); |
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} |
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} |
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