com.ibm.internal.iotf.devicemgmt.handler.FactoryResetRequestHandler.java Source code

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Here is the source code for com.ibm.internal.iotf.devicemgmt.handler.FactoryResetRequestHandler.java

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/**
 *****************************************************************************
 Copyright (c) 2015-16 IBM Corporation and other Contributors.
 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:
 Mike Tran - Initial Contribution
 Sathiskumar Palaniappan - Initial Contribution
 *****************************************************************************
 *
 */
package com.ibm.internal.iotf.devicemgmt.handler;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonPrimitive;
import com.ibm.internal.iotf.devicemgmt.ConcreteDeviceAction;
import com.ibm.internal.iotf.devicemgmt.ManagedClient;
import com.ibm.internal.iotf.devicemgmt.DMServerTopic;
import com.ibm.iotf.devicemgmt.DeviceAction;
import com.ibm.iotf.devicemgmt.DeviceActionHandler;

import com.ibm.internal.iotf.devicemgmt.ResponseCode;
import com.ibm.iotf.util.LoggerUtility;

/**
 * Request handler for <code>MMqttClient.SERVER_TOPIC_INITIATE_FACTORY_RESET</code>
 * <br>Expected request message format
 * <blockquote>
 * {
 *    "reqId": "string"
 * }
 */
public class FactoryResetRequestHandler extends DMRequestHandler implements PropertyChangeListener {

    private JsonElement reqId;

    public FactoryResetRequestHandler(ManagedClient dmClient) {
        setDMClient(dmClient);

    }

    /**
     * return initiate factory reset topic
     */
    @Override
    protected String getTopic() {
        DMServerTopic topic = this.getDMClient().getDMServerTopic();
        return topic.getInitiateFactoryReset();
    }

    /**
     * subscribe to initiate factory reset topic
     */
    @Override
    protected void subscribe() {
        DMServerTopic topic = this.getDMClient().getDMServerTopic();
        subscribe(topic.getInitiateFactoryReset());
    }

    /**
     * Unsubscribe initiate factory reset topic
     */
    @Override
    protected void unsubscribe() {
        DMServerTopic topic = this.getDMClient().getDMServerTopic();
        unsubscribe(topic.getInitiateFactoryReset());
    }

    /**
     * Handle the initiate factory reset messages from IBM Watson IoT Platform 
     */
    @Override
    protected void handleRequest(JsonObject jsonRequest) {
        final String METHOD = "handleRequest";

        DeviceAction action = getDMClient().getDeviceData().getDeviceAction();
        if (action == null || getDMClient().getActionHandler() == null) {
            JsonObject response = new JsonObject();
            response.add("reqId", jsonRequest.get("reqId"));
            response.add("rc", new JsonPrimitive(ResponseCode.DM_FUNCTION_NOT_IMPLEMENTED.getCode()));
            respond(response);
        } else {
            LoggerUtility.fine(CLASS_NAME, METHOD, " start Factory Reset action ");
            // remove any other listener that are listening for the status update
            ((ConcreteDeviceAction) action).clearListener();
            ((ConcreteDeviceAction) action).addPropertyChangeListener(this);
            this.reqId = jsonRequest.get("reqId");
            DeviceActionHandler handler = getDMClient().getActionHandler();
            handler.handleFactoryReset(action);
        }
    }

    @Override
    public void propertyChange(PropertyChangeEvent evt) {
        if (ConcreteDeviceAction.DEVICE_ACTION_STATUS_UPDATE.equals(evt.getPropertyName())) {
            try {
                ConcreteDeviceAction action = (ConcreteDeviceAction) evt.getNewValue();
                JsonObject response = action.toJsonObject();
                response.add("reqId", reqId);
                respond(response);
            } catch (Exception e) {
                LoggerUtility.warn(CLASS_NAME, "propertyChange", e.getMessage());
            }
        }
    }
}