Java tutorial
/* * Copyright (c) 2014, WSO2 Inc. (http://www.wso2.org) All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.wso2.carbon.device.mgt.iot.services.firealarm; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.wso2.carbon.device.mgt.common.Device; import org.wso2.carbon.device.mgt.common.DeviceIdentifier; import org.wso2.carbon.device.mgt.common.DeviceManagementException; import org.wso2.carbon.device.mgt.iot.arduino.firealarm.constants.FireAlarmConstants; import org.wso2.carbon.device.mgt.iot.services.common.DevicesManagerService; import org.wso2.carbon.device.mgt.iot.web.register.DeviceManagement; import javax.ws.rs.*; import javax.ws.rs.core.Response; import java.io.File; import java.nio.ByteBuffer; import java.util.Date; import java.util.UUID; //@Path("/FireAlarmDeviceManager") public class FireAlarmManagerService { private static Log log = LogFactory.getLog(FireAlarmManagerService.class); @Path("/registerDevice") @PUT public boolean register(@QueryParam("deviceId") String deviceId, @QueryParam("name") String name, @QueryParam("owner") String owner) throws DeviceManagementException { DeviceManagement deviceManagement = new DeviceManagement(); DeviceIdentifier deviceIdentifier = new DeviceIdentifier(); deviceIdentifier.setId(deviceId); deviceIdentifier.setType(FireAlarmConstants.DEVICE_TYPE); if (deviceManagement.isExist(deviceIdentifier)) { Response.status(409).build(); return false; } Device device = new Device(); device.setDeviceIdentifier(deviceId); device.setDateOfEnrolment(new Date().getTime()); device.setDateOfLastUpdate(new Date().getTime()); // device.setStatus(true); device.setName(name); device.setType(FireAlarmConstants.DEVICE_TYPE); device.setDeviceTypeId(1); device.setOwner(owner); boolean added = deviceManagement.addNewDevice(device); return added; } @Path("/removeDevice") @DELETE public boolean removeDevice(@QueryParam("deviceId") String deviceId) throws DeviceManagementException { DeviceManagement deviceManagement = new DeviceManagement(); DeviceIdentifier deviceIdentifier = new DeviceIdentifier(); deviceIdentifier.setId(deviceId); deviceIdentifier.setType(FireAlarmConstants.DEVICE_TYPE); boolean removed = deviceManagement.removeDevice(deviceIdentifier); return removed; } @Path("/updateDevice") @POST public boolean updateDevice(@QueryParam("deviceId") String deviceId, @QueryParam("name") String name) throws DeviceManagementException { DeviceManagement deviceManagement = new DeviceManagement(); DeviceIdentifier deviceIdentifier = new DeviceIdentifier(); deviceIdentifier.setId(deviceId); deviceIdentifier.setType(FireAlarmConstants.DEVICE_TYPE); Device device = deviceManagement.getDevice(deviceIdentifier); device.setDeviceIdentifier(deviceId); // device.setDeviceTypeId(deviceTypeId); device.setDateOfLastUpdate(new Date().getTime()); device.setName(name); device.setType(FireAlarmConstants.DEVICE_TYPE); boolean updated = deviceManagement.update(device); return updated; } @Path("/getDevice") @GET @Consumes("application/json") @Produces("application/json") public Device getDevice(@QueryParam("deviceId") String deviceId) { DeviceManagement deviceManagement = new DeviceManagement(); DeviceIdentifier deviceIdentifier = new DeviceIdentifier(); deviceIdentifier.setId(deviceId); deviceIdentifier.setType(FireAlarmConstants.DEVICE_TYPE); try { Device device = deviceManagement.getDevice(deviceIdentifier); return device; } catch (DeviceManagementException ex) { log.error("Error occurred while retrieving device with Id " + deviceId); return null; } } @Path("/downloadSketch") @GET @Produces("application/octet-stream") public Response downloadSketch(@QueryParam("owner") String owner, @QueryParam("type") String sketchType) { if (owner == null) { return Response.status(400).build();//bad request } //create new device id String deviceId = shortUUID(); //create token String token = UUID.randomUUID().toString(); //adding registering data try { register(deviceId, owner + "s_" + sketchType + "_" + deviceId.substring(0, 3), owner); } catch (DeviceManagementException ex) { return Response.status(500).entity( "Error occurred while registering the device with " + "id: " + deviceId + " owner:" + owner) .build(); } DevicesManagerService devicesManagerService = new DevicesManagerService(); File zipFile = null; try { zipFile = devicesManagerService.downloadSketch(owner, sketchType, deviceId, token); } catch (DeviceManagementException ex) { return Response.status(500).entity("Error occurred while creating zip file").build(); } Response.ResponseBuilder rb = Response.ok((Object) zipFile); rb.header("Content-Disposition", "attachment; filename=\"FireAlarmAgent.zip\""); return rb.build(); } private static String shortUUID() { UUID uuid = UUID.randomUUID(); long l = ByteBuffer.wrap(uuid.toString().getBytes()).getLong(); return Long.toString(l, Character.MAX_RADIX); } }