/**
* Copyright © 2016-2017 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.actors.plugin;
import akka.actor.ActorRef;
import com.google.common.base.Function;
import com.google.common.util.concurrent.FutureCallback;
import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
import lombok.extern.slf4j.Slf4j;
import org.thingsboard.server.common.data.Customer;
import org.thingsboard.server.common.data.Device;
import org.thingsboard.server.common.data.EntityType;
import org.thingsboard.server.common.data.Tenant;
import org.thingsboard.server.common.data.asset.Asset;
import org.thingsboard.server.common.data.id.*;
import org.thingsboard.server.common.data.kv.AttributeKey;
import org.thingsboard.server.common.data.kv.AttributeKvEntry;
import org.thingsboard.server.common.data.kv.TsKvEntry;
import org.thingsboard.server.common.data.kv.TsKvQuery;
import org.thingsboard.server.common.data.page.TextPageLink;
import org.thingsboard.server.common.data.plugin.PluginMetaData;
import org.thingsboard.server.common.data.relation.EntityRelation;
import org.thingsboard.server.common.data.relation.RelationTypeGroup;
import org.thingsboard.server.common.data.rule.RuleMetaData;
import org.thingsboard.server.common.msg.cluster.ServerAddress;
import org.thingsboard.server.extensions.api.device.DeviceAttributesEventNotificationMsg;
import org.thingsboard.server.extensions.api.plugins.PluginApiCallSecurityContext;
import org.thingsboard.server.extensions.api.plugins.PluginCallback;
import org.thingsboard.server.extensions.api.plugins.PluginContext;
import org.thingsboard.server.extensions.api.plugins.msg.PluginToRuleMsg;
import org.thingsboard.server.extensions.api.plugins.msg.TimeoutMsg;
import org.thingsboard.server.extensions.api.plugins.msg.ToDeviceRpcRequest;
import org.thingsboard.server.extensions.api.plugins.rpc.PluginRpcMsg;
import org.thingsboard.server.extensions.api.plugins.rpc.RpcMsg;
import org.thingsboard.server.extensions.api.plugins.ws.PluginWebsocketSessionRef;
import org.thingsboard.server.extensions.api.plugins.ws.msg.PluginWebsocketMsg;
import javax.annotation.Nullable;
import java.io.IOException;
import java.util.*;
import java.util.concurrent.Executor;
import java.util.concurrent.Executors;
import java.util.stream.Collectors;
@Slf4j
public final class PluginProcessingContext implements PluginContext {
private static final Executor executor = Executors.newSingleThreadExecutor();
private final SharedPluginProcessingContext pluginCtx;
private final Optional<PluginApiCallSecurityContext> securityCtx;
public PluginProcessingContext(SharedPluginProcessingContext pluginCtx, PluginApiCallSecurityContext securityCtx) {
super();
this.pluginCtx = pluginCtx;
this.securityCtx = Optional.ofNullable(securityCtx);
}
public void persistError(String method, Exception e) {
pluginCtx.persistError(method, e);
}
@Override
public void sendPluginRpcMsg(RpcMsg msg) {
this.pluginCtx.rpcService.tell(new PluginRpcMsg(pluginCtx.tenantId, pluginCtx.pluginId, msg));
}
@Override
public void send(PluginWebsocketMsg<?> wsMsg) throws IOException {
pluginCtx.msgEndpoint.send(wsMsg);
}
@Override
public void close(PluginWebsocketSessionRef sessionRef) throws IOException {
pluginCtx.msgEndpoint.close(sessionRef);
}
@Override
public void saveAttributes(final TenantId tenantId, final EntityId entityId, final String scope, final List<AttributeKvEntry> attributes, final PluginCallback<Void> callback) {
validate(entityId, new ValidationCallback(callback, ctx -> {
ListenableFuture<List<Void>> futures = pluginCtx.attributesService.save(entityId, scope, attributes);
Futures.addCallback(futures, getListCallback(callback, v -> {
if (entityId.getEntityType() == EntityType.DEVICE) {
onDeviceAttributesChanged(tenantId, new DeviceId(entityId.getId()), scope, attributes);
}
return null;
}), executor);
}));
}
@Override
public void removeAttributes(final TenantId tenantId, final EntityId entityId, final String scope, final List<String> keys, final PluginCallback<Void> callback) {
validate(entityId, new ValidationCallback(callback, ctx -> {
ListenableFuture<List<Void>> futures = pluginCtx.attributesService.removeAll(entityId, scope, keys);
Futures.addCallback(futures, getCallback(callback, v -> null), executor);
if (entityId.getEntityType() == EntityType.DEVICE) {
onDeviceAttributesDeleted(tenantId, new DeviceId(entityId.getId()), keys.stream().map(key -> new AttributeKey(scope, key)).collect(Collectors.toSet()));
}
}));
}
@Override
public void loadAttribute(EntityId entityId, String attributeType, String attributeKey, final PluginCallback<Optional<AttributeKvEntry>> callback) {
validate(entityId, new ValidationCallback(callback, ctx -> {
ListenableFuture<Optional<AttributeKvEntry>> future = pluginCtx.attributesService.find(entityId, attributeType, attributeKey);
Futures.addCallback(future, getCallback(callback, v -> v), executor);
}));
}
@Override
public void loadAttributes(EntityId entityId, String attributeType, Collection<String> attributeKeys, final PluginCallback<List<AttributeKvEntry>> callback) {
validate(entityId, new ValidationCallback(callback, ctx -> {
ListenableFuture<List<AttributeKvEntry>> future = pluginCtx.attributesService.find(entityId, attributeType, attributeKeys);
Futures.addCallback(future, getCallback(callback, v -> v), executor);
}));
}
@Override
public void loadAttributes(EntityId entityId, String attributeType, PluginCallback<List<AttributeKvEntry>> callback) {
validate(entityId, new ValidationCallback(callback, ctx -> {
ListenableFuture<List<AttributeKvEntry>> future = pluginCtx.attributesService.findAll(entityId, attributeType);
Futures.addCallback(future, getCallback(callback, v -> v), executor);
}));
}
@Override
public void loadAttributes(final EntityId entityId, final Collection<String> attributeTypes, final PluginCallback<List<AttributeKvEntry>> callback) {
validate(entityId, new ValidationCallback(callback, ctx -> {
List<ListenableFuture<List<AttributeKvEntry>>> futures = new ArrayList<>();
attributeTypes.forEach(attributeType -> futures.add(pluginCtx.attributesService.findAll(entityId, attributeType)));
convertFuturesAndAddCallback(callback, futures);
}));
}
@Override
public void loadAttributes(final EntityId entityId, final Collection<String> attributeTypes, final Collection<String> attributeKeys, final PluginCallback<List<AttributeKvEntry>> callback) {
validate(entityId, new ValidationCallback(callback, ctx -> {
List<ListenableFuture<List<AttributeKvEntry>>> futures = new ArrayList<>();
attributeTypes.forEach(attributeType -> futures.add(pluginCtx.attributesService.find(entityId, attributeType, attributeKeys)));
convertFuturesAndAddCallback(callback, futures);
}));
}
@Override
public void saveTsData(final EntityId entityId, final TsKvEntry entry, final PluginCallback<Void> callback) {
validate(entityId, new ValidationCallback(callback, ctx -> {
ListenableFuture<List<Void>> rsListFuture = pluginCtx.tsService.save(entityId, entry);
Futures.addCallback(rsListFuture, getListCallback(callback, v -> null), executor);
}));
}
@Override
public void saveTsData(final EntityId entityId, final List<TsKvEntry> entries, final PluginCallback<Void> callback) {
saveTsData(entityId, entries, 0L, callback);
}
@Override
public void saveTsData(final EntityId entityId, final List<TsKvEntry> entries, long ttl, final PluginCallback<Void> callback) {
validate(entityId, new ValidationCallback(callback, ctx -> {
ListenableFuture<List<Void>> rsListFuture = pluginCtx.tsService.save(entityId, entries, ttl);
Futures.addCallback(rsListFuture, getListCallback(callback, v -> null), executor);
}));
}
@Override
public void loadTimeseries(final EntityId entityId, final List<TsKvQuery> queries, final PluginCallback<List<TsKvEntry>> callback) {
validate(entityId, new ValidationCallback(callback, ctx -> {
ListenableFuture<List<TsKvEntry>> future = pluginCtx.tsService.findAll(entityId, queries);
Futures.addCallback(future, getCallback(callback, v -> v), executor);
}));
}
@Override
public void loadLatestTimeseries(final EntityId entityId, final PluginCallback<List<TsKvEntry>> callback) {
validate(entityId, new ValidationCallback(callback, ctx -> {
ListenableFuture<List<TsKvEntry>> future = pluginCtx.tsService.findAllLatest(entityId);
Futures.addCallback(future, getCallback(callback, v -> v), executor);
}));
}
@Override
public void loadLatestTimeseries(final EntityId entityId, final Collection<String> keys, final PluginCallback<List<TsKvEntry>> callback) {
validate(entityId, new ValidationCallback(callback, ctx -> {
ListenableFuture<List<TsKvEntry>> rsListFuture = pluginCtx.tsService.findLatest(entityId, keys);
Futures.addCallback(rsListFuture, getCallback(callback, v -> v), executor);
}));
}
@Override
public void reply(PluginToRuleMsg<?> msg) {
pluginCtx.parentActor.tell(msg, ActorRef.noSender());
}
@Override
public PluginId getPluginId() {
return pluginCtx.pluginId;
}
@Override
public Optional<PluginApiCallSecurityContext> getSecurityCtx() {
return securityCtx;
}
private void onDeviceAttributesDeleted(TenantId tenantId, DeviceId deviceId, Set<AttributeKey> keys) {
pluginCtx.toDeviceActor(DeviceAttributesEventNotificationMsg.onDelete(tenantId, deviceId, keys));
}
private void onDeviceAttributesChanged(TenantId tenantId, DeviceId deviceId, String scope, List<AttributeKvEntry> values) {
pluginCtx.toDeviceActor(DeviceAttributesEventNotificationMsg.onUpdate(tenantId, deviceId, scope, values));
}
private <T, R> FutureCallback<List<T>> getListCallback(final PluginCallback<R> callback, Function<List<T>, R> transformer) {
return new FutureCallback<List<T>>() {
@Override
public void onSuccess(@Nullable List<T> result) {
pluginCtx.self().tell(PluginCallbackMessage.onSuccess(callback, transformer.apply(result)), ActorRef.noSender());
}
@Override
public void onFailure(Throwable t) {
if (t instanceof Exception) {
pluginCtx.self().tell(PluginCallbackMessage.onError(callback, (Exception) t), ActorRef.noSender());
} else {
log.error("Critical error: {}", t.getMessage(), t);
}
}
};
}
private <T, R> FutureCallback<R> getCallback(final PluginCallback<T> callback, Function<R, T> transformer) {
return new FutureCallback<R>() {
@Override
public void onSuccess(@Nullable R result) {
try {
pluginCtx.self().tell(PluginCallbackMessage.onSuccess(callback, transformer.apply(result)), ActorRef.noSender());
} catch (Exception e) {
pluginCtx.self().tell(PluginCallbackMessage.onError(callback, e), ActorRef.noSender());
}
}
@Override
public void onFailure(Throwable t) {
if (t instanceof Exception) {
pluginCtx.self().tell(PluginCallbackMessage.onError(callback, (Exception) t), ActorRef.noSender());
} else {
log.error("Critical error: {}", t.getMessage(), t);
}
}
};
}
@Override
public void checkAccess(DeviceId deviceId, PluginCallback<Void> callback) {
validate(deviceId, new ValidationCallback(callback, ctx -> callback.onSuccess(ctx, null)));
}
private void validate(EntityId entityId, ValidationCallback callback) {
if (securityCtx.isPresent()) {
final PluginApiCallSecurityContext ctx = securityCtx.get();
switch (entityId.getEntityType()) {
case DEVICE:
validateDevice(ctx, entityId, callback);
return;
case ASSET:
validateAsset(ctx, entityId, callback);
return;
case RULE:
validateRule(ctx, entityId, callback);
return;
case PLUGIN:
validatePlugin(ctx, entityId, callback);
return;
case CUSTOMER:
validateCustomer(ctx, entityId, callback);
return;
case TENANT:
validateTenant(ctx, entityId, callback);
return;
default:
//TODO: add support of other entities
throw new IllegalStateException("Not Implemented!");
}
} else {
callback.onSuccess(this, Boolean.TRUE);
}
}
private void validateDevice(final PluginApiCallSecurityContext ctx, EntityId entityId, ValidationCallback callback) {
if (ctx.isSystemAdmin()) {
callback.onSuccess(this, Boolean.FALSE);
} else {
ListenableFuture<Device> deviceFuture = pluginCtx.deviceService.findDeviceByIdAsync(new DeviceId(entityId.getId()));
Futures.addCallback(deviceFuture, getCallback(callback, device -> {
if (device == null) {
return Boolean.FALSE;
} else {
if (!device.getTenantId().equals(ctx.getTenantId())) {
return Boolean.FALSE;
} else if (ctx.isCustomerUser() && !device.getCustomerId().equals(ctx.getCustomerId())) {
return Boolean.FALSE;
} else {
return Boolean.TRUE;
}
}
}));
}
}
private void validateAsset(final PluginApiCallSecurityContext ctx, EntityId entityId, ValidationCallback callback) {
if (ctx.isSystemAdmin()) {
callback.onSuccess(this, Boolean.FALSE);
} else {
ListenableFuture<Asset> assetFuture = pluginCtx.assetService.findAssetByIdAsync(new AssetId(entityId.getId()));
Futures.addCallback(assetFuture, getCallback(callback, asset -> {
if (asset == null) {
return Boolean.FALSE;
} else {
if (!asset.getTenantId().equals(ctx.getTenantId())) {
return Boolean.FALSE;
} else if (ctx.isCustomerUser() && !asset.getCustomerId().equals(ctx.getCustomerId())) {
return Boolean.FALSE;
} else {
return Boolean.TRUE;
}
}
}));
}
}
private void validateRule(final PluginApiCallSecurityContext ctx, EntityId entityId, ValidationCallback callback) {
if (ctx.isCustomerUser()) {
callback.onSuccess(this, Boolean.FALSE);
} else {
ListenableFuture<RuleMetaData> ruleFuture = pluginCtx.ruleService.findRuleByIdAsync(new RuleId(entityId.getId()));
Futures.addCallback(ruleFuture, getCallback(callback, rule -> {
if (rule == null) {
return Boolean.FALSE;
} else {
if (ctx.isTenantAdmin() && !rule.getTenantId().equals(ctx.getTenantId())) {
return Boolean.FALSE;
} else if (ctx.isSystemAdmin() && !rule.getTenantId().isNullUid()) {
return Boolean.FALSE;
} else {
return Boolean.TRUE;
}
}
}));
}
}
private void validatePlugin(final PluginApiCallSecurityContext ctx, EntityId entityId, ValidationCallback callback) {
if (ctx.isCustomerUser()) {
callback.onSuccess(this, Boolean.FALSE);
} else {
ListenableFuture<PluginMetaData> pluginFuture = pluginCtx.pluginService.findPluginByIdAsync(new PluginId(entityId.getId()));
Futures.addCallback(pluginFuture, getCallback(callback, plugin -> {
if (plugin == null) {
return Boolean.FALSE;
} else {
if (ctx.isTenantAdmin() && !plugin.getTenantId().equals(ctx.getTenantId())) {
return Boolean.FALSE;
} else if (ctx.isSystemAdmin() && !plugin.getTenantId().isNullUid()) {
return Boolean.FALSE;
} else {
return Boolean.TRUE;
}
}
}));
}
}
private void validateCustomer(final PluginApiCallSecurityContext ctx, EntityId entityId, ValidationCallback callback) {
if (ctx.isSystemAdmin()) {
callback.onSuccess(this, Boolean.FALSE);
} else {
ListenableFuture<Customer> customerFuture = pluginCtx.customerService.findCustomerByIdAsync(new CustomerId(entityId.getId()));
Futures.addCallback(customerFuture, getCallback(callback, customer -> {
if (customer == null) {
return Boolean.FALSE;
} else {
if (!customer.getTenantId().equals(ctx.getTenantId())) {
return Boolean.FALSE;
} else if (ctx.isCustomerUser() && !customer.getId().equals(ctx.getCustomerId())) {
return Boolean.FALSE;
} else {
return Boolean.TRUE;
}
}
}));
}
}
private void validateTenant(final PluginApiCallSecurityContext ctx, EntityId entityId, ValidationCallback callback) {
if (ctx.isCustomerUser()) {
callback.onSuccess(this, Boolean.FALSE);
} else if (ctx.isSystemAdmin()) {
callback.onSuccess(this, Boolean.TRUE);
} else {
ListenableFuture<Tenant> tenantFuture = pluginCtx.tenantService.findTenantByIdAsync(new TenantId(entityId.getId()));
Futures.addCallback(tenantFuture, getCallback(callback, tenant -> tenant != null && tenant.getId().equals(ctx.getTenantId())));
}
}
@Override
public ListenableFuture<List<EntityRelation>> findByFromAndType(EntityId from, String relationType) {
return this.pluginCtx.relationService.findByFromAndType(from, relationType, RelationTypeGroup.COMMON);
}
@Override
public ListenableFuture<List<EntityRelation>> findByToAndType(EntityId from, String relationType) {
return this.pluginCtx.relationService.findByToAndType(from, relationType, RelationTypeGroup.COMMON);
}
@Override
public Optional<ServerAddress> resolve(EntityId entityId) {
return pluginCtx.routingService.resolveById(entityId);
}
@Override
public void getDevice(DeviceId deviceId, PluginCallback<Device> callback) {
ListenableFuture<Device> deviceFuture = pluginCtx.deviceService.findDeviceByIdAsync(deviceId);
Futures.addCallback(deviceFuture, getCallback(callback, v -> v));
}
@Override
public void getCustomerDevices(TenantId tenantId, CustomerId customerId, int limit, PluginCallback<List<Device>> callback) {
//TODO: add caching here with async api.
List<Device> devices = pluginCtx.deviceService.findDevicesByTenantIdAndCustomerId(tenantId, customerId, new TextPageLink(limit)).getData();
pluginCtx.self().tell(PluginCallbackMessage.onSuccess(callback, devices), ActorRef.noSender());
}
@Override
public void sendRpcRequest(ToDeviceRpcRequest msg) {
pluginCtx.sendRpcRequest(msg);
}
@Override
public void scheduleTimeoutMsg(TimeoutMsg msg) {
pluginCtx.scheduleTimeoutMsg(msg);
}
private void convertFuturesAndAddCallback(PluginCallback<List<AttributeKvEntry>> callback, List<ListenableFuture<List<AttributeKvEntry>>> futures) {
ListenableFuture<List<AttributeKvEntry>> future = Futures.transform(Futures.successfulAsList(futures),
(Function<? super List<List<AttributeKvEntry>>, ? extends List<AttributeKvEntry>>) input -> {
List<AttributeKvEntry> result = new ArrayList<>();
input.forEach(r -> result.addAll(r));
return result;
}, executor);
Futures.addCallback(future, getCallback(callback, v -> v), executor);
}
}