RpcController.java
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/**
* Copyright © 2016-2018 The Thingsboard Authors
*
* 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.thingsboard.server.controller;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.util.concurrent.FutureCallback;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.context.request.async.DeferredResult;
import org.thingsboard.server.actors.plugin.ValidationResult;
import org.thingsboard.server.common.data.exception.ThingsboardErrorCode;
import org.thingsboard.server.common.data.exception.ThingsboardException;
import org.thingsboard.server.common.data.id.DeviceId;
import org.thingsboard.server.common.data.id.TenantId;
import org.thingsboard.server.common.data.rpc.ToDeviceRpcRequestBody;
import org.thingsboard.server.common.msg.rpc.ToDeviceRpcRequest;
import org.thingsboard.server.extensions.api.exception.ToErrorResponseEntity;
import org.thingsboard.server.extensions.api.plugins.PluginConstants;
import org.thingsboard.server.common.data.rpc.RpcRequest;
import org.thingsboard.server.service.rpc.LocalRequestMetaData;
import org.thingsboard.server.service.rpc.DeviceRpcService;
import org.thingsboard.server.service.security.AccessValidator;
import org.thingsboard.server.service.security.model.SecurityUser;
import javax.annotation.Nullable;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import java.io.IOException;
import java.util.Optional;
import java.util.UUID;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
/**
* Created by ashvayka on 22.03.18.
*/
@RestController
@RequestMapping(PluginConstants.RPC_URL_PREFIX)
@Slf4j
public class RpcController extends BaseController {
public static final int DEFAULT_TIMEOUT = 10000;
protected final ObjectMapper jsonMapper = new ObjectMapper();
@Autowired
private DeviceRpcService deviceRpcService;
@Autowired
private AccessValidator accessValidator;
private ExecutorService executor;
@PostConstruct
public void initExecutor() {
executor = Executors.newSingleThreadExecutor();
}
@PreDestroy
public void shutdownExecutor() {
if (executor != null) {
executor.shutdownNow();
}
}
@PreAuthorize("hasAnyAuthority('SYS_ADMIN', 'TENANT_ADMIN', 'CUSTOMER_USER')")
@RequestMapping(value = "/oneway/{deviceId}", method = RequestMethod.POST)
@ResponseBody
public DeferredResult<ResponseEntity> handleOneWayDeviceRPCRequest(@PathVariable("deviceId") String deviceIdStr, @RequestBody String requestBody) throws ThingsboardException {
return handleDeviceRPCRequest(true, new DeviceId(UUID.fromString(deviceIdStr)), requestBody);
}
@PreAuthorize("hasAnyAuthority('SYS_ADMIN', 'TENANT_ADMIN', 'CUSTOMER_USER')")
@RequestMapping(value = "/twoway/{deviceId}", method = RequestMethod.POST)
@ResponseBody
public DeferredResult<ResponseEntity> handleTwoWayDeviceRPCRequest(@PathVariable("deviceId") String deviceIdStr, @RequestBody String requestBody) throws ThingsboardException {
return handleDeviceRPCRequest(false, new DeviceId(UUID.fromString(deviceIdStr)), requestBody);
}
private DeferredResult<ResponseEntity> handleDeviceRPCRequest(boolean oneWay, DeviceId deviceId, String requestBody) throws ThingsboardException {
try {
JsonNode rpcRequestBody = jsonMapper.readTree(requestBody);
RpcRequest cmd = new RpcRequest(rpcRequestBody.get("method").asText(),
jsonMapper.writeValueAsString(rpcRequestBody.get("params")));
if (rpcRequestBody.has("timeout")) {
cmd.setTimeout(rpcRequestBody.get("timeout").asLong());
}
SecurityUser currentUser = getCurrentUser();
TenantId tenantId = currentUser.getTenantId();
final DeferredResult<ResponseEntity> response = new DeferredResult<>();
long timeout = System.currentTimeMillis() + (cmd.getTimeout() != null ? cmd.getTimeout() : DEFAULT_TIMEOUT);
ToDeviceRpcRequestBody body = new ToDeviceRpcRequestBody(cmd.getMethodName(), cmd.getRequestData());
accessValidator.validate(currentUser, deviceId, new HttpValidationCallback(response, new FutureCallback<DeferredResult<ResponseEntity>>() {
@Override
public void onSuccess(@Nullable DeferredResult<ResponseEntity> result) {
ToDeviceRpcRequest rpcRequest = new ToDeviceRpcRequest(UUID.randomUUID(),
tenantId,
deviceId,
oneWay,
timeout,
body
);
deviceRpcService.process(rpcRequest, new LocalRequestMetaData(rpcRequest, currentUser, result));
}
@Override
public void onFailure(Throwable e) {
ResponseEntity entity;
if (e instanceof ToErrorResponseEntity) {
entity = ((ToErrorResponseEntity) e).toErrorResponseEntity();
} else {
entity = new ResponseEntity(HttpStatus.UNAUTHORIZED);
}
deviceRpcService.logRpcCall(currentUser, deviceId, body, oneWay, Optional.empty(), e);
response.setResult(entity);
}
}));
return response;
} catch (IOException ioe) {
throw new ThingsboardException("Invalid request body", ioe, ThingsboardErrorCode.BAD_REQUEST_PARAMS);
}
}
}