removed CF type LAST_RECORDS and implemented this functionality as a script(added new argument type TS_ROLLING)

application/src/main/java/org/thingsboard/server/service/cf/DefaultCalculatedFieldExecutionService.java

@@ -73,12 +73,12 @@ import org.thingsboard.server.service.cf.ctx.CalculatedFieldEntityCtxId;
 import org.thingsboard.server.service.cf.ctx.state.ArgumentEntry;
 import org.thingsboard.server.service.cf.ctx.state.CalculatedFieldCtx;
 import org.thingsboard.server.service.cf.ctx.state.CalculatedFieldState;
-import org.thingsboard.server.service.cf.ctx.state.LastRecordsCalculatedFieldState;
 import org.thingsboard.server.service.cf.ctx.state.ScriptCalculatedFieldState;
 import org.thingsboard.server.service.cf.ctx.state.SimpleCalculatedFieldState;
 import org.thingsboard.server.service.partition.AbstractPartitionBasedService;
 
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
@@ -435,41 +435,41 @@ public class DefaultCalculatedFieldExecutionService extends AbstractPartitionBas
         EntityId entityId = EntityType.DEVICE_PROFILE.equals(argumentEntityId.getEntityType()) || EntityType.ASSET_PROFILE.equals(argumentEntityId.getEntityType())
                 ? targetEntityId
                 : argumentEntityId;
-        if (CalculatedFieldType.LAST_RECORDS.equals(calculatedFieldCtx.getCfType())) {
-            return fetchLastRecords(tenantId, entityId, argument);
-        }
         return fetchKvEntry(tenantId, entityId, argument);
     }
 
-    private ListenableFuture<ArgumentEntry> fetchLastRecords(TenantId tenantId, EntityId entityId, Argument argument) {
+    private ListenableFuture<ArgumentEntry> fetchKvEntry(TenantId tenantId, EntityId entityId, Argument argument) {
+        return switch (argument.getType()) {
+            case "TS_ROLLING" -> fetchTsRolling(tenantId, entityId, argument);
+            case "ATTRIBUTE" -> transformSingleValueArgument(
+                    Futures.transform(
+                            attributesService.find(tenantId, entityId, argument.getScope(), argument.getKey()),
+                            result -> result.or(() -> Optional.of(new BaseAttributeKvEntry(System.currentTimeMillis(), createDefaultKvEntry(argument)))),
+                            calculatedFieldCallbackExecutor)
+            );
+            case "TS_LATEST" -> transformSingleValueArgument(
+                    Futures.transform(
+                            timeseriesService.findLatest(tenantId, entityId, argument.getKey()),
+                            result -> result.or(() -> Optional.of(new BasicTsKvEntry(System.currentTimeMillis(), createDefaultKvEntry(argument)))),
+                            calculatedFieldCallbackExecutor));
+            default -> throw new IllegalArgumentException("Invalid argument type '" + argument.getType() + "'.");
+        };
+    }
+
+    private ListenableFuture<ArgumentEntry> fetchTsRolling(TenantId tenantId, EntityId entityId, Argument argument) {
         long currentTime = System.currentTimeMillis();
         long timeWindow = argument.getTimeWindow() == 0 ? System.currentTimeMillis() : argument.getTimeWindow();
         long startTs = currentTime - timeWindow;
         int limit = argument.getLimit() == 0 ? MAX_LAST_RECORDS_VALUE : argument.getLimit();
 
         ReadTsKvQuery query = new BaseReadTsKvQuery(argument.getKey(), startTs, currentTime, 0, limit, Aggregation.NONE);
-        ListenableFuture<List<TsKvEntry>> lastRecordsFuture = timeseriesService.findAll(tenantId, entityId, List.of(query));
+        ListenableFuture<List<TsKvEntry>> tsRollingFuture = timeseriesService.findAll(tenantId, entityId, List.of(query));
 
-        return Futures.transform(lastRecordsFuture, ArgumentEntry::createLastRecordsArgument, calculatedFieldExecutor);
+        return Futures.transform(tsRollingFuture, tsRolling -> tsRolling == null ? ArgumentEntry.createTsRollingArgument(Collections.emptyList()) : ArgumentEntry.createTsRollingArgument(tsRolling), calculatedFieldCallbackExecutor);
     }
 
-    private ListenableFuture<ArgumentEntry> fetchKvEntry(TenantId tenantId, EntityId entityId, Argument argument) {
+    private ListenableFuture<ArgumentEntry> transformSingleValueArgument(ListenableFuture<Optional<? extends KvEntry>> kvEntryFuture) {
-        ListenableFuture<Optional<? extends KvEntry>> kvEntryFuture = switch (argument.getType()) {
+        return Futures.transform(kvEntryFuture, kvEntry -> ArgumentEntry.createSingleValueArgument(kvEntry.orElse(null)), calculatedFieldCallbackExecutor);
-            case "ATTRIBUTES" -> Futures.transform(
-                    attributesService.find(tenantId, entityId, argument.getScope(), argument.getKey()),
-                    result -> result.or(() -> Optional.of(
-                            new BaseAttributeKvEntry(System.currentTimeMillis(), createDefaultKvEntry(argument))
-                    )),
-                    MoreExecutors.directExecutor());
-            case "TIME_SERIES" -> Futures.transform(
-                    timeseriesService.findLatest(tenantId, entityId, argument.getKey()),
-                    result -> result.or(() -> Optional.of(
-                            new BasicTsKvEntry(System.currentTimeMillis(), createDefaultKvEntry(argument))
-                    )),
-                    calculatedFieldExecutor);
-            default -> throw new IllegalArgumentException("Invalid argument type '" + argument.getType() + "'.");
-        };
-        return Futures.transform(kvEntryFuture, kvEntry -> ArgumentEntry.createSingleValueArgument(kvEntry.orElse(null)), calculatedFieldExecutor);
     }
 
     private KvEntry createDefaultKvEntry(Argument argument) {
@@ -547,7 +547,6 @@ public class DefaultCalculatedFieldExecutionService extends AbstractPartitionBas
         return switch (calculatedFieldType) {
             case SIMPLE -> new SimpleCalculatedFieldState();
             case SCRIPT -> new ScriptCalculatedFieldState();
-            case LAST_RECORDS -> new LastRecordsCalculatedFieldState();
         };
     }
 

application/src/main/java/org/thingsboard/server/service/cf/ctx/state/ArgumentEntry.java

@@ -32,7 +32,7 @@ import java.util.stream.Collectors;
 )
 @JsonSubTypes({
         @JsonSubTypes.Type(value = SingleValueArgumentEntry.class, name = "SINGLE_VALUE"),
-        @JsonSubTypes.Type(value = LastRecordsArgumentEntry.class, name = "LAST_RECORDS")
+        @JsonSubTypes.Type(value = TsRollingArgumentEntry.class, name = "TS_ROLLING")
 })
 public interface ArgumentEntry {
 
@@ -45,8 +45,8 @@ public interface ArgumentEntry {
         return new SingleValueArgumentEntry(kvEntry);
     }
 
-    static ArgumentEntry createLastRecordsArgument(List<TsKvEntry> kvEntries) {
+    static ArgumentEntry createTsRollingArgument(List<TsKvEntry> kvEntries) {
-        return new LastRecordsArgumentEntry(kvEntries.stream().
+        return new TsRollingArgumentEntry(kvEntries.stream().
                 collect(Collectors.toMap(TsKvEntry::getTs, TsKvEntry::getValue, (oldValue, newValue) -> newValue, TreeMap::new)));
     }
 

application/src/main/java/org/thingsboard/server/service/cf/ctx/state/ArgumentType.java

@@ -16,5 +16,5 @@
 package org.thingsboard.server.service.cf.ctx.state;
 
 public enum ArgumentType {
-    SINGLE_VALUE, LAST_RECORDS
+    SINGLE_VALUE, TS_ROLLING
 }

application/src/main/java/org/thingsboard/server/service/cf/ctx/state/BaseCalculatedFieldState.java

@@ -17,7 +17,6 @@ package org.thingsboard.server.service.cf.ctx.state;
 
 import java.util.HashMap;
 import java.util.Map;
-import java.util.stream.Collectors;
 
 public abstract class BaseCalculatedFieldState implements CalculatedFieldState {
 
@@ -36,15 +35,22 @@ public abstract class BaseCalculatedFieldState implements CalculatedFieldState {
         if (arguments == null) {
             arguments = new HashMap<>();
         }
-        arguments.putAll(
+        argumentValues.forEach((key, argumentEntry) -> {
-                argumentValues.entrySet().stream()
+            ArgumentEntry existingArgumentEntry = arguments.get(key);
-                        .peek(entry -> {
+            if (existingArgumentEntry != null) {
-                            if (entry.getValue() instanceof LastRecordsArgumentEntry) {
+                if (existingArgumentEntry instanceof SingleValueArgumentEntry) {
-                                throw new IllegalArgumentException("Last records argument entry is not allowed for single calculated field state");
+                    arguments.put(key, argumentEntry);
-                            }
+                } else if (existingArgumentEntry instanceof TsRollingArgumentEntry existingTsRollingArgumentEntry) {
-                        })
+                    if (argumentEntry instanceof TsRollingArgumentEntry tsRollingArgumentEntry) {
-                        .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue))
+                        existingTsRollingArgumentEntry.getTsRecords().putAll(tsRollingArgumentEntry.getTsRecords());
-        );
+                    } else if (argumentEntry instanceof SingleValueArgumentEntry singleValueArgumentEntry) {
+                        existingTsRollingArgumentEntry.getTsRecords().put(singleValueArgumentEntry.getTs(), singleValueArgumentEntry.getValue());
+                    }
+                }
+            } else {
+                arguments.put(key, argumentEntry);
+            }
+        });
     }
 
 }

application/src/main/java/org/thingsboard/server/service/cf/ctx/state/CalculatedFieldState.java

@@ -21,7 +21,6 @@ import com.fasterxml.jackson.annotation.JsonTypeInfo;
 import com.google.common.util.concurrent.ListenableFuture;
 import org.thingsboard.server.common.data.cf.CalculatedFieldType;
 import org.thingsboard.server.common.data.cf.configuration.Argument;
-import org.thingsboard.server.common.data.kv.KvEntry;
 import org.thingsboard.server.service.cf.CalculatedFieldResult;
 
 import java.util.Map;
@@ -34,7 +33,6 @@ import java.util.Map;
 @JsonSubTypes({
         @JsonSubTypes.Type(value = SimpleCalculatedFieldState.class, name = "SIMPLE"),
         @JsonSubTypes.Type(value = ScriptCalculatedFieldState.class, name = "SCRIPT"),
-        @JsonSubTypes.Type(value = LastRecordsCalculatedFieldState.class, name = "LAST_RECORDS")
 })
 public interface CalculatedFieldState {
 

application/src/main/java/org/thingsboard/server/service/cf/ctx/state/LastRecordsCalculatedFieldState.java

@@ -1,79 +0,0 @@
-/**
- * Copyright © 2016-2024 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.service.cf.ctx.state;
-
-import com.google.common.util.concurrent.Futures;
-import com.google.common.util.concurrent.ListenableFuture;
-import com.google.common.util.concurrent.MoreExecutors;
-import lombok.Data;
-import org.thingsboard.server.common.data.cf.CalculatedFieldType;
-import org.thingsboard.server.common.data.cf.configuration.Argument;
-import org.thingsboard.server.common.data.cf.configuration.Output;
-import org.thingsboard.server.service.cf.CalculatedFieldResult;
-
-import java.util.Map;
-import java.util.TreeMap;
-
-@Data
-public class LastRecordsCalculatedFieldState extends BaseCalculatedFieldState {
-
-    public LastRecordsCalculatedFieldState() {
-    }
-
-    @Override
-    public CalculatedFieldType getType() {
-        return CalculatedFieldType.LAST_RECORDS;
-    }
-
-    @Override
-    public void initState(Map<String, ArgumentEntry> argumentValues) {
-        if (arguments == null) {
-            arguments = new TreeMap<>();
-        }
-        argumentValues.forEach((key, argumentEntry) -> {
-            LastRecordsArgumentEntry existingArgumentEntry = (LastRecordsArgumentEntry)
-                    arguments.computeIfAbsent(key, k -> new LastRecordsArgumentEntry(new TreeMap<>()));
-            if (argumentEntry instanceof LastRecordsArgumentEntry lastRecordsArgumentEntry) {
-                existingArgumentEntry.getTsRecords().putAll(lastRecordsArgumentEntry.getTsRecords());
-            } else if (argumentEntry instanceof SingleValueArgumentEntry singleValueArgumentEntry) {
-                existingArgumentEntry.getTsRecords().put(singleValueArgumentEntry.getTs(), singleValueArgumentEntry.getValue());
-            }
-        });
-    }
-
-    @Override
-    public ListenableFuture<CalculatedFieldResult> performCalculation(CalculatedFieldCtx ctx) {
-        if (isValid(ctx.getArguments())) {
-            arguments.forEach((key, argumentEntry) -> {
-                Argument argument = ctx.getArguments().get(key);
-                TreeMap<Long, Object> tsRecords = ((LastRecordsArgumentEntry) argumentEntry).getTsRecords();
-                if (tsRecords.size() > argument.getLimit()) {
-                    tsRecords.pollFirstEntry();
-                }
-                tsRecords.entrySet().removeIf(tsRecord -> tsRecord.getKey() < System.currentTimeMillis() - argument.getTimeWindow());
-            });
-            Object[] args = arguments.values().stream().map(ArgumentEntry::getValue).toArray();
-            ListenableFuture<Map<String, Object>> resultFuture = ctx.getCalculatedFieldScriptEngine().executeToMapAsync(args);
-            Output output = ctx.getOutput();
-            return Futures.transform(resultFuture,
-                    result -> new CalculatedFieldResult(output.getType(), output.getScope(), result),
-                    MoreExecutors.directExecutor()
-            );
-        }
-        return null;
-    }
-
-}

application/src/main/java/org/thingsboard/server/service/cf/ctx/state/ScriptCalculatedFieldState.java

@@ -21,10 +21,12 @@ import com.google.common.util.concurrent.MoreExecutors;
 import lombok.Data;
 import lombok.extern.slf4j.Slf4j;
 import org.thingsboard.server.common.data.cf.CalculatedFieldType;
+import org.thingsboard.server.common.data.cf.configuration.Argument;
 import org.thingsboard.server.common.data.cf.configuration.Output;
 import org.thingsboard.server.service.cf.CalculatedFieldResult;
 
 import java.util.Map;
+import java.util.TreeMap;
 
 @Data
 @Slf4j
@@ -38,6 +40,16 @@ public class ScriptCalculatedFieldState extends BaseCalculatedFieldState {
     @Override
     public ListenableFuture<CalculatedFieldResult> performCalculation(CalculatedFieldCtx ctx) {
         if (isValid(ctx.getArguments())) {
+            arguments.forEach((key, argumentEntry) -> {
+                if (argumentEntry instanceof TsRollingArgumentEntry) {
+                    Argument argument = ctx.getArguments().get(key);
+                    TreeMap<Long, Object> tsRecords = ((TsRollingArgumentEntry) argumentEntry).getTsRecords();
+                    if (tsRecords.size() > argument.getLimit()) {
+                        tsRecords.pollFirstEntry();
+                    }
+                    tsRecords.entrySet().removeIf(tsRecord -> tsRecord.getKey() < System.currentTimeMillis() - argument.getTimeWindow());
+                }
+            });
             Object[] args = arguments.values().stream().map(ArgumentEntry::getValue).toArray();
             ListenableFuture<Map<String, Object>> resultFuture = ctx.getCalculatedFieldScriptEngine().executeToMapAsync(args);
             Output output = ctx.getOutput();
@@ -46,7 +58,7 @@ public class ScriptCalculatedFieldState extends BaseCalculatedFieldState {
                     MoreExecutors.directExecutor()
             );
         }
-        return null;
+        return Futures.immediateFuture(null);
     }
 
 }

application/src/main/java/org/thingsboard/server/service/cf/ctx/state/SimpleCalculatedFieldState.java

@@ -57,7 +57,7 @@ public class SimpleCalculatedFieldState extends BaseCalculatedFieldState {
             Output output = ctx.getOutput();
             return Futures.immediateFuture(new CalculatedFieldResult(output.getType(), output.getScope(), Map.of(output.getName(), expressionResult)));
         }
-        return null;
+        return Futures.immediateFuture(null);
     }
 
 }

application/src/main/java/org/thingsboard/server/service/cf/ctx/state/TsRollingArgumentEntry.java

@@ -25,13 +25,13 @@ import java.util.TreeMap;
 @Data
 @NoArgsConstructor
 @AllArgsConstructor
-public class LastRecordsArgumentEntry implements ArgumentEntry {
+public class TsRollingArgumentEntry implements ArgumentEntry {
 
     private TreeMap<Long, Object> tsRecords;
 
     @Override
     public ArgumentType getType() {
-        return ArgumentType.LAST_RECORDS;
+        return ArgumentType.TS_ROLLING;
     }
 
     @JsonIgnore

common/data/src/main/java/org/thingsboard/server/common/data/cf/CalculatedFieldType.java

@@ -17,6 +17,6 @@ package org.thingsboard.server.common.data.cf;
 
 public enum CalculatedFieldType {
 
-    SIMPLE, SCRIPT, LAST_RECORDS
+    SIMPLE, SCRIPT
 
 }

common/data/src/main/java/org/thingsboard/server/common/data/cf/configuration/BaseCalculatedFieldConfiguration.java

@@ -69,10 +69,10 @@ public abstract class BaseCalculatedFieldConfiguration implements CalculatedFiel
             Argument argument = entry.getValue();
             if (argument.getEntityId().equals(entityId)) {
                 switch (argument.getType()) {
-                    case "ATTRIBUTES":
+                    case "ATTRIBUTE":
                         linkConfiguration.getAttributes().put(entry.getKey(), argument.getKey());
                         break;
-                    case "TIME_SERIES":
+                    case "TS_LATEST", "TS_ROLLING":
                         linkConfiguration.getTimeSeries().put(entry.getKey(), argument.getKey());
                         break;
                 }

common/data/src/main/java/org/thingsboard/server/common/data/cf/configuration/CalculatedFieldConfiguration.java

@@ -35,8 +35,7 @@ import java.util.UUID;
 )
 @JsonSubTypes({
         @JsonSubTypes.Type(value = SimpleCalculatedFieldConfiguration.class, name = "SIMPLE"),
-        @JsonSubTypes.Type(value = ScriptCalculatedFieldConfiguration.class, name = "SCRIPT"),
+        @JsonSubTypes.Type(value = ScriptCalculatedFieldConfiguration.class, name = "SCRIPT")
-        @JsonSubTypes.Type(value = LastRecordsCalculatedFieldConfiguration.class, name = "LAST_RECORDS")
 })
 public interface CalculatedFieldConfiguration {
 

common/data/src/main/java/org/thingsboard/server/common/data/cf/configuration/LastRecordsCalculatedFieldConfiguration.java

@@ -1,39 +0,0 @@
-/**
- * Copyright © 2016-2024 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.common.data.cf.configuration;
-
-import com.fasterxml.jackson.databind.JsonNode;
-import lombok.Data;
-import org.thingsboard.server.common.data.EntityType;
-import org.thingsboard.server.common.data.cf.CalculatedFieldType;
-
-import java.util.UUID;
-
-@Data
-public class LastRecordsCalculatedFieldConfiguration extends BaseCalculatedFieldConfiguration implements CalculatedFieldConfiguration {
-
-    public LastRecordsCalculatedFieldConfiguration() {
-    }
-
-    public LastRecordsCalculatedFieldConfiguration(JsonNode config, EntityType entityType, UUID entityId) {
-        super(config, entityType, entityId);
-    }
-
-    @Override
-    public CalculatedFieldType getType() {
-        return CalculatedFieldType.LAST_RECORDS;
-    }
-}

dao/src/main/java/org/thingsboard/server/dao/model/sql/CalculatedFieldEntity.java

@@ -26,7 +26,6 @@ import org.thingsboard.server.common.data.EntityType;
 import org.thingsboard.server.common.data.cf.CalculatedField;
 import org.thingsboard.server.common.data.cf.CalculatedFieldType;
 import org.thingsboard.server.common.data.cf.configuration.CalculatedFieldConfiguration;
-import org.thingsboard.server.common.data.cf.configuration.LastRecordsCalculatedFieldConfiguration;
 import org.thingsboard.server.common.data.cf.configuration.ScriptCalculatedFieldConfiguration;
 import org.thingsboard.server.common.data.cf.configuration.SimpleCalculatedFieldConfiguration;
 import org.thingsboard.server.common.data.id.CalculatedFieldId;
@@ -124,7 +123,6 @@ public class CalculatedFieldEntity extends BaseSqlEntity<CalculatedField> implem
         return switch (CalculatedFieldType.valueOf(type)) {
             case SIMPLE -> new SimpleCalculatedFieldConfiguration(config, entityType, entityId);
             case SCRIPT -> new ScriptCalculatedFieldConfiguration(config, entityType, entityId);
-            case LAST_RECORDS -> new LastRecordsCalculatedFieldConfiguration(config, entityType, entityId);
         };
     }
 

dao/src/main/java/org/thingsboard/server/dao/sql/cf/DefaultNativeCalculatedFieldRepository.java

@@ -29,7 +29,6 @@ import org.thingsboard.server.common.data.cf.CalculatedFieldLink;
 import org.thingsboard.server.common.data.cf.CalculatedFieldLinkConfiguration;
 import org.thingsboard.server.common.data.cf.CalculatedFieldType;
 import org.thingsboard.server.common.data.cf.configuration.CalculatedFieldConfiguration;
-import org.thingsboard.server.common.data.cf.configuration.LastRecordsCalculatedFieldConfiguration;
 import org.thingsboard.server.common.data.cf.configuration.ScriptCalculatedFieldConfiguration;
 import org.thingsboard.server.common.data.cf.configuration.SimpleCalculatedFieldConfiguration;
 import org.thingsboard.server.common.data.id.CalculatedFieldId;
@@ -140,7 +139,6 @@ public class DefaultNativeCalculatedFieldRepository implements NativeCalculatedF
         return switch (type) {
             case SIMPLE -> new SimpleCalculatedFieldConfiguration(config, entityType, entityId);
             case SCRIPT -> new ScriptCalculatedFieldConfiguration(config, entityType, entityId);
-            case LAST_RECORDS -> new LastRecordsCalculatedFieldConfiguration(config, entityType, entityId);
         };
     }