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.sensebot.api; import org.apache.commons.httpclient.HttpStatus; 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.sensebot.constants.SensebotConstants; import org.wso2.carbon.device.mgt.iot.common.devicecloud.util.ZipUtil; import org.wso2.carbon.device.mgt.iot.common.devicecloud.util.ZipArchive; import org.wso2.carbon.device.mgt.iot.common.devicecloud.DeviceManagement; import javax.servlet.http.HttpServletResponse; import javax.ws.rs.*; import javax.ws.rs.core.Context; import javax.ws.rs.core.Response; import java.nio.ByteBuffer; import java.nio.charset.StandardCharsets; import java.util.Date; import java.util.UUID; import static java.nio.charset.StandardCharsets.UTF_8; public class SensebotManagerService { private static Log log = LogFactory.getLog(SensebotManagerService.class); @Path("/device/register") @PUT public boolean register(@QueryParam("deviceId") String deviceId, @QueryParam("name") String name, @QueryParam("owner") String owner) { DeviceManagement deviceManagement = new DeviceManagement(); DeviceIdentifier deviceIdentifier = new DeviceIdentifier(); deviceIdentifier.setId(deviceId); deviceIdentifier.setType(SensebotConstants.DEVICE_TYPE); try { if (deviceManagement.isExist(deviceIdentifier)) { Response.status(HttpStatus.SC_CONFLICT).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(SensebotConstants.DEVICE_TYPE); device.setOwner(owner); boolean added = deviceManagement.addNewDevice(device); if (added) { Response.status(HttpStatus.SC_OK).build(); } else { Response.status(HttpStatus.SC_EXPECTATION_FAILED).build(); } return added; } catch (DeviceManagementException e) { log.error(e.getErrorMessage()); return false; } } @Path("/device/remove/{device_id}") @DELETE public void removeDevice(@PathParam("device_id") String deviceId, @Context HttpServletResponse response) { DeviceManagement deviceManagement = new DeviceManagement(); DeviceIdentifier deviceIdentifier = new DeviceIdentifier(); deviceIdentifier.setId(deviceId); deviceIdentifier.setType(SensebotConstants.DEVICE_TYPE); try { boolean removed = deviceManagement.removeDevice(deviceIdentifier); if (removed) { response.setStatus(HttpStatus.SC_OK); } else { response.setStatus(HttpStatus.SC_EXPECTATION_FAILED); } } catch (DeviceManagementException e) { log.error(e.getErrorMessage()); } } @Path("/device/update/{device_id}") @POST public boolean updateDevice(@PathParam("device_id") String deviceId, @QueryParam("name") String name, @Context HttpServletResponse response) { DeviceManagement deviceManagement = new DeviceManagement(); DeviceIdentifier deviceIdentifier = new DeviceIdentifier(); deviceIdentifier.setId(deviceId); deviceIdentifier.setType(SensebotConstants.DEVICE_TYPE); try { Device device = deviceManagement.getDevice(deviceIdentifier); device.setDeviceIdentifier(deviceId); // device.setDeviceTypeId(deviceTypeId); device.setDateOfLastUpdate(new Date().getTime()); device.setName(name); device.setType(SensebotConstants.DEVICE_TYPE); boolean updated = deviceManagement.update(device); if (updated) { response.setStatus(HttpStatus.SC_OK); } else { response.setStatus(HttpStatus.SC_EXPECTATION_FAILED); } return updated; } catch (DeviceManagementException e) { log.error(e.getErrorMessage()); return false; } } @Path("/device/{device_id}") @GET @Consumes("application/json") @Produces("application/json") public Device getDevice(@PathParam("device_id") String deviceId) { DeviceManagement deviceManagement = new DeviceManagement(); DeviceIdentifier deviceIdentifier = new DeviceIdentifier(); deviceIdentifier.setId(deviceId); deviceIdentifier.setType(SensebotConstants.DEVICE_TYPE); try { Device device = deviceManagement.getDevice(deviceIdentifier); return device; } catch (DeviceManagementException ex) { log.error("Error occurred while retrieving device with Id " + deviceId + "\n" + ex); return null; } } @Path("/device/{sketch_type}/download") @GET @Produces("application/octet-stream") public Response downloadSketch(@QueryParam("owner") String owner, @PathParam("sketch_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 boolean status = register(deviceId, owner + "s_" + sketchType + "_" + deviceId.substring(0, 3), owner); if (!status) { return Response.status(500).entity( "Error occurred while registering the device with " + "id: " + deviceId + " owner:" + owner) .build(); } ZipUtil ziputil = new ZipUtil(); ZipArchive zipFile = null; try { zipFile = ziputil.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(zipFile.getZipFile()); rb.header("Content-Disposition", "attachment; filename=\"" + zipFile.getFileName() + "\""); return rb.build(); } private static String shortUUID() { UUID uuid = UUID.randomUUID(); long l = ByteBuffer.wrap(uuid.toString().getBytes(StandardCharsets.UTF_8)).getLong(); return Long.toString(l, Character.MAX_RADIX); } }