Merge branch 'master' into feature/jdk11

dao/src/main/java/org/thingsboard/server/dao/device/DeviceServiceImpl.java

@@ -203,6 +203,8 @@ public class DeviceServiceImpl extends AbstractEntityService implements DeviceSe
         } catch (Exception t) {
             ConstraintViolationException e = extractConstraintViolationException(t).orElse(null);
             if (e != null && e.getConstraintName() != null && e.getConstraintName().equalsIgnoreCase("device_name_unq_key")) {
+                // remove device from cache in case null value cached in the distributed redis.
+                removeDeviceFromCache(device.getTenantId(), device.getName());
                 throw new DataValidationException("Device with such name already exists!");
             } else {
                 throw t;
@@ -281,15 +283,19 @@ public class DeviceServiceImpl extends AbstractEntityService implements DeviceSe
         }
         deleteEntityRelations(tenantId, deviceId);
 
-        List<Object> list = new ArrayList<>();
-        list.add(device.getTenantId());
-        list.add(device.getName());
-        Cache cache = cacheManager.getCache(DEVICE_CACHE);
-        cache.evict(list);
+        removeDeviceFromCache(tenantId, device.getName());
 
         deviceDao.removeById(tenantId, deviceId.getId());
     }
 
+    private void removeDeviceFromCache(TenantId tenantId, String name) {
+        List<Object> list = new ArrayList<>();
+        list.add(tenantId);
+        list.add(name);
+        Cache cache = cacheManager.getCache(DEVICE_CACHE);
+        cache.evict(list);
+    }
+
     @Override
     public PageData<Device> findDevicesByTenantId(TenantId tenantId, PageLink pageLink) {
         log.trace("Executing findDevicesByTenantId, tenantId [{}], pageLink [{}]", tenantId, pageLink);

rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/metadata/CalculateDeltaNode.java

@@ -0,0 +1,175 @@
+/**
+ * Copyright © 2016-2021 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.rule.engine.metadata;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.google.common.util.concurrent.Futures;
+import com.google.common.util.concurrent.ListenableFuture;
+import lombok.extern.slf4j.Slf4j;
+import org.thingsboard.common.util.DonAsynchron;
+import org.thingsboard.rule.engine.api.RuleNode;
+import org.thingsboard.rule.engine.api.TbContext;
+import org.thingsboard.rule.engine.api.TbNode;
+import org.thingsboard.rule.engine.api.TbNodeConfiguration;
+import org.thingsboard.rule.engine.api.TbNodeException;
+import org.thingsboard.rule.engine.api.TbRelationTypes;
+import org.thingsboard.rule.engine.api.util.TbNodeUtils;
+import org.thingsboard.rule.engine.telemetry.TbMsgTimeseriesNode;
+import org.thingsboard.server.common.data.id.EntityId;
+import org.thingsboard.server.common.data.kv.TsKvEntry;
+import org.thingsboard.server.common.data.plugin.ComponentType;
+import org.thingsboard.server.common.msg.TbMsg;
+import org.thingsboard.server.dao.timeseries.TimeseriesService;
+import org.thingsboard.server.dao.util.mapping.JacksonUtil;
+
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+import java.util.Collections;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+@Slf4j
+@RuleNode(type = ComponentType.ENRICHMENT,
+        name = "calculate delta",
+        configClazz = CalculateDeltaNodeConfiguration.class,
+        nodeDescription = "Calculates and adds 'delta' value into message based on the incoming and previous value",
+        nodeDetails = "Calculates delta and period based on the previous time-series reading and current data. " +
+                "Delta calculation is done in scope of the message originator, e.g. device, asset or customer.",
+        uiResources = {"static/rulenode/rulenode-core-config.js"},
+        configDirective = "tbEnrichmentNodeCalculateDeltaConfig")
+public class CalculateDeltaNode implements TbNode {
+    private Map<EntityId, ValueWithTs> cache;
+    private CalculateDeltaNodeConfiguration config;
+    private TbContext ctx;
+    private TimeseriesService timeseriesService;
+    private boolean useCache;
+
+    @Override
+    public void init(TbContext ctx, TbNodeConfiguration configuration) throws TbNodeException {
+        this.config = TbNodeUtils.convert(configuration, CalculateDeltaNodeConfiguration.class);
+        this.ctx = ctx;
+        this.timeseriesService = ctx.getTimeseriesService();
+        this.useCache = config.isUseCache();
+
+        if (useCache) {
+            cache = new ConcurrentHashMap<>();
+        }
+    }
+
+    @Override
+    public void onMsg(TbContext ctx, TbMsg msg) {
+        JsonNode json = JacksonUtil.toJsonNode(msg.getData());
+        String inputKey = config.getInputValueKey();
+        if (json.has(inputKey)) {
+            DonAsynchron.withCallback(getLastValue(msg.getOriginator()),
+                    previousData -> {
+                        double currentValue = json.get(inputKey).asDouble();
+                        long currentTs = TbMsgTimeseriesNode.getTs(msg);
+
+                        if (useCache) {
+                            cache.put(msg.getOriginator(), new ValueWithTs(currentTs, currentValue));
+                        }
+
+                        BigDecimal delta = BigDecimal.valueOf(previousData != null ? currentValue - previousData.value : 0.0);
+
+                        if (config.isTellFailureIfDeltaIsNegative() && delta.doubleValue() < 0) {
+                            ctx.tellNext(msg, TbRelationTypes.FAILURE);
+                            return;
+                        }
+
+                        if (config.getRound() != null) {
+                            delta = delta.setScale(config.getRound(), RoundingMode.HALF_UP);
+                        }
+
+                        ObjectNode result = (ObjectNode) json;
+                        result.put(config.getOutputValueKey(), delta);
+
+                        if (config.isAddPeriodBetweenMsgs()) {
+                            long period = previousData != null ? currentTs - previousData.ts : 0;
+                            result.put(config.getPeriodValueKey(), period);
+                        }
+                        ctx.tellSuccess(TbMsg.transformMsg(msg, msg.getType(), msg.getOriginator(), msg.getMetaData(), JacksonUtil.toString(result)));
+                    },
+                    t -> ctx.tellFailure(msg, t), ctx.getDbCallbackExecutor());
+        } else if (config.isTellFailureIfInputValueKeyIsAbsent()) {
+            ctx.tellNext(msg, TbRelationTypes.FAILURE);
+        } else {
+            ctx.tellSuccess(msg);
+        }
+    }
+
+    @Override
+    public void destroy() {
+        if (useCache) {
+            cache.clear();
+        }
+    }
+
+    private ListenableFuture<ValueWithTs> fetchLatestValue(EntityId entityId) {
+        return Futures.transform(timeseriesService.findLatest(ctx.getTenantId(), entityId, Collections.singletonList(config.getInputValueKey())),
+                list -> extractValue(list.get(0))
+                , ctx.getDbCallbackExecutor());
+    }
+
+    private ListenableFuture<ValueWithTs> getLastValue(EntityId entityId) {
+        ValueWithTs latestValue;
+        if (useCache && (latestValue = cache.get(entityId)) != null) {
+            return Futures.immediateFuture(latestValue);
+        } else {
+            return fetchLatestValue(entityId);
+        }
+    }
+
+    private ValueWithTs extractValue(TsKvEntry kvEntry) {
+        if (kvEntry == null || kvEntry.getValue() == null) {
+            return null;
+        }
+        double result = 0.0;
+        long ts = kvEntry.getTs();
+        switch (kvEntry.getDataType()) {
+            case LONG:
+                result = kvEntry.getLongValue().get();
+                break;
+            case DOUBLE:
+                result = kvEntry.getDoubleValue().get();
+                break;
+            case STRING:
+                try {
+                    result = Double.parseDouble(kvEntry.getStrValue().get());
+                } catch (NumberFormatException e) {
+                    throw new IllegalArgumentException("Calculation failed. Unable to parse value [" + kvEntry.getStrValue().get() + "]" +
+                            " of telemetry [" + kvEntry.getKey() + "] to Double");
+                }
+                break;
+            case BOOLEAN:
+                throw new IllegalArgumentException("Calculation failed. Boolean values are not supported!");
+            case JSON:
+                throw new IllegalArgumentException("Calculation failed. JSON values are not supported!");
+        }
+        return new ValueWithTs(ts, result);
+    }
+
+    private static class ValueWithTs {
+        private final long ts;
+        private final double value;
+
+        private ValueWithTs(long ts, double value) {
+            this.ts = ts;
+            this.value = value;
+        }
+    }
+}

rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/metadata/CalculateDeltaNodeConfiguration.java

@@ -0,0 +1,45 @@
+/**
+ * Copyright © 2016-2021 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.rule.engine.metadata;
+
+import lombok.Data;
+import org.thingsboard.rule.engine.api.NodeConfiguration;
+
+@Data
+public class CalculateDeltaNodeConfiguration implements NodeConfiguration<CalculateDeltaNodeConfiguration> {
+    private String inputValueKey;
+    private String outputValueKey;
+    private boolean useCache;
+    private boolean addPeriodBetweenMsgs;
+    private String periodValueKey;
+    private Integer round;
+    private boolean tellFailureIfInputValueKeyIsAbsent;
+    private boolean tellFailureIfDeltaIsNegative;
+
+    @Override
+    public CalculateDeltaNodeConfiguration defaultConfiguration() {
+        CalculateDeltaNodeConfiguration configuration = new CalculateDeltaNodeConfiguration();
+        configuration.setInputValueKey("pulseCounter");
+        configuration.setOutputValueKey("delta");
+        configuration.setUseCache(true);
+        configuration.setAddPeriodBetweenMsgs(false);
+        configuration.setPeriodValueKey("periodInMs");
+        configuration.setTellFailureIfInputValueKeyIsAbsent(true);
+        configuration.setTellFailureIfDeltaIsNegative(true);
+        return configuration;
+    }
+
+}

rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/profile/AlarmState.java

@@ -223,7 +223,11 @@ class AlarmState {
             currentAlarm.setType(alarmDefinition.getAlarmType());
             currentAlarm.setStatus(AlarmStatus.ACTIVE_UNACK);
             currentAlarm.setSeverity(severity);
-            currentAlarm.setStartTs(System.currentTimeMillis());
+            long startTs = dataSnapshot.getTs();
+            if (startTs == 0L) {
+                startTs = System.currentTimeMillis();
+            }
+            currentAlarm.setStartTs(startTs);
             currentAlarm.setEndTs(currentAlarm.getStartTs());
             currentAlarm.setDetails(createDetails(ruleState));
             currentAlarm.setOriginator(originator);