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DynamoDBPersistenceService.java
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DynamoDBPersistenceService.java
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/**
* Copyright (c) 2010-2021 Contributors to the openHAB project
*
* See the NOTICE file(s) distributed with this work for additional
* information.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.openhab.persistence.dynamodb.internal;
import java.lang.reflect.InvocationTargetException;
import java.net.URI;
import java.time.Duration;
import java.time.Instant;
import java.time.ZonedDateTime;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.stream.Collectors;
import javax.measure.Unit;
import org.eclipse.jdt.annotation.NonNullByDefault;
import org.eclipse.jdt.annotation.Nullable;
import org.openhab.core.common.ThreadPoolManager;
import org.openhab.core.config.core.ConfigurableService;
import org.openhab.core.items.GenericItem;
import org.openhab.core.items.GroupItem;
import org.openhab.core.items.Item;
import org.openhab.core.items.ItemNotFoundException;
import org.openhab.core.items.ItemRegistry;
import org.openhab.core.library.items.NumberItem;
import org.openhab.core.library.types.QuantityType;
import org.openhab.core.persistence.FilterCriteria;
import org.openhab.core.persistence.HistoricItem;
import org.openhab.core.persistence.PersistenceItemInfo;
import org.openhab.core.persistence.PersistenceService;
import org.openhab.core.persistence.QueryablePersistenceService;
import org.openhab.core.persistence.strategy.PersistenceStrategy;
import org.openhab.core.types.State;
import org.openhab.core.types.UnDefType;
import org.osgi.framework.BundleContext;
import org.osgi.framework.Constants;
import org.osgi.service.component.annotations.Activate;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Deactivate;
import org.osgi.service.component.annotations.Reference;
import org.reactivestreams.Subscriber;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import software.amazon.awssdk.auth.credentials.StaticCredentialsProvider;
import software.amazon.awssdk.awscore.AwsRequestOverrideConfiguration;
import software.amazon.awssdk.awscore.defaultsmode.DefaultsMode;
import software.amazon.awssdk.core.async.SdkPublisher;
import software.amazon.awssdk.core.client.config.ClientAsyncConfiguration;
import software.amazon.awssdk.core.client.config.ClientOverrideConfiguration;
import software.amazon.awssdk.core.client.config.SdkAdvancedAsyncClientOption;
import software.amazon.awssdk.enhanced.dynamodb.DynamoDbAsyncTable;
import software.amazon.awssdk.enhanced.dynamodb.DynamoDbEnhancedAsyncClient;
import software.amazon.awssdk.enhanced.dynamodb.TableSchema;
import software.amazon.awssdk.enhanced.dynamodb.model.QueryEnhancedRequest;
import software.amazon.awssdk.http.nio.netty.NettyNioAsyncHttpClient;
import software.amazon.awssdk.services.dynamodb.DynamoDbAsyncClient;
import software.amazon.awssdk.services.dynamodb.DynamoDbAsyncClientBuilder;
import software.amazon.awssdk.services.dynamodb.model.ResourceNotFoundException;
/**
* This is the implementation of the DynamoDB {@link PersistenceService}. It persists item values
* using the <a href="https://aws.amazon.com/dynamodb/">Amazon DynamoDB</a> database. The states (
* {@link State}) of an {@link Item} are persisted in DynamoDB tables.
*
* The service creates tables automatically, one for numbers, and one for strings.
*
* @see AbstractDynamoDBItem.fromState for details how different items are persisted
*
* @author Sami Salonen - Initial contribution
* @author Kai Kreuzer - Migration to 3.x
*
*/
@NonNullByDefault
@Component(service = { PersistenceService.class,
QueryablePersistenceService.class }, configurationPid = "org.openhab.dynamodb", //
property = Constants.SERVICE_PID + "=org.openhab.dynamodb")
@ConfigurableService(category = "persistence", label = "DynamoDB Persistence Service", description_uri = DynamoDBPersistenceService.CONFIG_URI)
public class DynamoDBPersistenceService implements QueryablePersistenceService {
private static final int MAX_CONCURRENCY = 100;
protected static final String CONFIG_URI = "persistence:dynamodb";
private static final String DYNAMODB_THREADPOOL_NAME = "dynamodbPersistenceService";
private ItemRegistry itemRegistry;
private @Nullable DynamoDbEnhancedAsyncClient client;
private @Nullable DynamoDbAsyncClient lowLevelClient;
private final static Logger logger = LoggerFactory.getLogger(DynamoDBPersistenceService.class);
private boolean isProperlyConfigured;
private @Nullable DynamoDBConfig dbConfig;
private @Nullable DynamoDBTableNameResolver tableNameResolver;
private final ExecutorService executor = ThreadPoolManager.getPool(DYNAMODB_THREADPOOL_NAME);
private static final Duration TIMEOUT_API_CALL = Duration.ofSeconds(60);
private static final Duration TIMEOUT_API_CALL_ATTEMPT = Duration.ofSeconds(5);
private Map<Class<? extends DynamoDBItem<?>>, DynamoDbAsyncTable<? extends DynamoDBItem<?>>> tableCache = new ConcurrentHashMap<>(
2);
private @Nullable URI endpointOverride;
void overrideConfig(AwsRequestOverrideConfiguration.Builder config) {
config.apiCallAttemptTimeout(TIMEOUT_API_CALL_ATTEMPT).apiCallTimeout(TIMEOUT_API_CALL);
}
void overrideConfig(ClientOverrideConfiguration.Builder config) {
DynamoDBConfig localDbConfig = dbConfig;
config.apiCallAttemptTimeout(TIMEOUT_API_CALL_ATTEMPT).apiCallTimeout(TIMEOUT_API_CALL);
if (localDbConfig != null) {
localDbConfig.getRetryPolicy().ifPresent(config::retryPolicy);
}
}
@Activate
public DynamoDBPersistenceService(final @Reference ItemRegistry itemRegistry) {
this.itemRegistry = itemRegistry;
}
/**
* For tests
*/
DynamoDBPersistenceService(final ItemRegistry itemRegistry, @Nullable URI endpointOverride) {
this.itemRegistry = itemRegistry;
this.endpointOverride = endpointOverride;
}
/**
* For tests
*/
@Nullable
URI getEndpointOverride() {
return endpointOverride;
}
@Nullable
DynamoDbAsyncClient getLowLevelClient() {
return lowLevelClient;
}
ExecutorService getExecutor() {
return executor;
}
@Nullable
DynamoDBTableNameResolver getTableNameResolver() {
return tableNameResolver;
}
@Nullable
DynamoDBConfig getDbConfig() {
return dbConfig;
}
@Activate
public void activate(final @Nullable BundleContext bundleContext, final Map<String, Object> config) {
disconnect();
DynamoDBConfig localDbConfig = dbConfig = DynamoDBConfig.fromConfig(config);
if (localDbConfig == null) {
// Configuration was invalid. Abort service activation.
// Error is already logger in fromConfig.
return;
}
tableNameResolver = new DynamoDBTableNameResolver(localDbConfig.getTableRevision(), localDbConfig.getTable(),
localDbConfig.getTablePrefixLegacy());
try {
if (!ensureClient()) {
logger.error("Error creating dynamodb database client. Aborting service activation.");
return;
}
} catch (Exception e) {
logger.error("Error constructing dynamodb client", e);
return;
}
isProperlyConfigured = true;
logger.debug("dynamodb persistence service activated");
}
@Deactivate
public void deactivate() {
logger.debug("dynamodb persistence service deactivated");
logIfManyQueuedTasks();
disconnect();
}
/**
* Initializes Dynamo DB client and determines schema
*
* If construction fails, error is logged and false is returned.
*
* @return whether initialization was successful.
*/
private boolean ensureClient() {
DynamoDBConfig localDbConfig = dbConfig;
if (localDbConfig == null) {
return false;
}
if (client == null) {
try {
synchronized (this) {
if (this.client != null) {
return true;
}
DynamoDbAsyncClientBuilder lowlevelClientBuilder = DynamoDbAsyncClient.builder()
.defaultsMode(DefaultsMode.STANDARD)
.credentialsProvider(StaticCredentialsProvider.create(localDbConfig.getCredentials()))
.httpClient(NettyNioAsyncHttpClient.builder().maxConcurrency(MAX_CONCURRENCY).build())
.asyncConfiguration(
ClientAsyncConfiguration.builder()
.advancedOption(SdkAdvancedAsyncClientOption.FUTURE_COMPLETION_EXECUTOR,
executor)
.build())
.overrideConfiguration(this::overrideConfig).region(localDbConfig.getRegion());
if (endpointOverride != null) {
logger.debug("DynamoDB has been overriden to {}", endpointOverride);
lowlevelClientBuilder.endpointOverride(endpointOverride);
}
DynamoDbAsyncClient lowlevelClient = lowlevelClientBuilder.build();
client = DynamoDbEnhancedAsyncClient.builder().dynamoDbClient(lowlevelClient).build();
this.lowLevelClient = lowlevelClient;
}
} catch (Exception e) {
logger.error("Error constructing dynamodb client", e);
return false;
}
}
return true;
}
private CompletableFuture<Boolean> resolveTableSchema() {
DynamoDBTableNameResolver localTableNameResolver = tableNameResolver;
DynamoDbAsyncClient localLowLevelClient = lowLevelClient;
if (localTableNameResolver == null || localLowLevelClient == null) {
throw new IllegalStateException("tableNameResolver or localLowLevelClient not available");
}
if (localTableNameResolver.isFullyResolved()) {
return CompletableFuture.completedFuture(true);
} else {
synchronized (localTableNameResolver) {
if (localTableNameResolver.isFullyResolved()) {
return CompletableFuture.completedFuture(true);
}
return localTableNameResolver.resolveSchema(localLowLevelClient,
b -> b.overrideConfiguration(this::overrideConfig), executor).thenApplyAsync(resolved -> {
if (resolved && localTableNameResolver.getTableSchema() == ExpectedTableSchema.LEGACY) {
logger.warn(
"Using legacy table format. Is it recommended to migrate to the new table format: specify the 'table' parameter and unset the old 'tablePrefix' parameter.");
}
return resolved;
}, executor);
}
}
}
private <T extends DynamoDBItem<?>> DynamoDbAsyncTable<T> getTable(Class<T> dtoClass) {
DynamoDbEnhancedAsyncClient localClient = client;
DynamoDBTableNameResolver localTableNameResolver = tableNameResolver;
if (!ensureClient() || localClient == null || localTableNameResolver == null) {
throw new IllegalStateException("Client not ready");
}
ExpectedTableSchema expectedTableSchemaRevision = localTableNameResolver.getTableSchema();
String tableName = localTableNameResolver.fromClass(dtoClass);
final TableSchema<T> schema = getDynamoDBTableSchema(dtoClass, expectedTableSchemaRevision);
@SuppressWarnings("unchecked") // OK since this is the only place tableCache is populated
DynamoDbAsyncTable<T> table = (DynamoDbAsyncTable<T>) tableCache.computeIfAbsent(dtoClass, clz -> {
return localClient.table(tableName, schema);
});
if (table == null) {
// Invariant. To make null checker happy
throw new IllegalStateException();
}
return table;
}
private static <T extends DynamoDBItem<?>> TableSchema<T> getDynamoDBTableSchema(Class<T> dtoClass,
ExpectedTableSchema expectedTableSchemaRevision) {
if (dtoClass.equals(DynamoDBBigDecimalItem.class)) {
@SuppressWarnings("unchecked") // OK thanks to above conditional
TableSchema<T> schema = (TableSchema<T>) (expectedTableSchemaRevision == ExpectedTableSchema.NEW
? DynamoDBBigDecimalItem.TABLE_SCHEMA_NEW
: DynamoDBBigDecimalItem.TABLE_SCHEMA_LEGACY);
return schema;
} else if (dtoClass.equals(DynamoDBStringItem.class)) {
@SuppressWarnings("unchecked") // OK thanks to above conditional
TableSchema<T> schema = (TableSchema<T>) (expectedTableSchemaRevision == ExpectedTableSchema.NEW
? DynamoDBStringItem.TABLE_SCHEMA_NEW
: DynamoDBStringItem.TABLE_SCHEMA_LEGACY);
return schema;
} else {
throw new IllegalStateException("Unknown DTO class. Bug");
}
}
private void disconnect() {
DynamoDbAsyncClient localLowLevelClient = lowLevelClient;
if (client == null || localLowLevelClient == null) {
return;
}
localLowLevelClient.close();
lowLevelClient = null;
client = null;
dbConfig = null;
tableNameResolver = null;
isProperlyConfigured = false;
tableCache.clear();
}
protected boolean isReadyToStore() {
return isProperlyConfigured && ensureClient();
}
@Override
public String getId() {
return "dynamodb";
}
@Override
public String getLabel(@Nullable Locale locale) {
return "DynamoDB";
}
@Override
public Set<PersistenceItemInfo> getItemInfo() {
return Collections.emptySet();
}
@Override
public Iterable<HistoricItem> query(FilterCriteria filter) {
logIfManyQueuedTasks();
Instant start = Instant.now();
String filterDescription = filterToString(filter);
logger.trace("Got a query with filter {}", filterDescription);
DynamoDbEnhancedAsyncClient localClient = client;
DynamoDBTableNameResolver localTableNameResolver = tableNameResolver;
if (!isProperlyConfigured) {
logger.debug("Configuration for dynamodb not yet loaded or broken. Returning empty query results.");
return Collections.emptyList();
}
if (!ensureClient() || localClient == null || localTableNameResolver == null) {
logger.warn("DynamoDB not connected. Returning empty query results.");
return Collections.emptyList();
}
//
// Resolve unclear table schema if needed
//
try {
Boolean resolved = resolveTableSchema().get();
if (!resolved) {
logger.warn("Table schema not resolved, cannot query data.");
return Collections.emptyList();
}
} catch (InterruptedException e) {
logger.warn("Table schema resolution interrupted, cannot query data");
return Collections.emptyList();
} catch (ExecutionException e) {
Throwable cause = e.getCause();
logger.warn("Table schema resolution errored, cannot query data: {} {}",
cause == null ? e.getClass().getSimpleName() : cause.getClass().getSimpleName(),
cause == null ? e.getMessage() : cause.getMessage());
return Collections.emptyList();
}
try {
//
// Proceed with query
//
String itemName = filter.getItemName();
Item item = getItemFromRegistry(itemName);
if (item == null) {
logger.warn("Could not get item {} from registry! Returning empty query results.", itemName);
return Collections.emptyList();
}
if (item instanceof GroupItem) {
item = ((GroupItem) item).getBaseItem();
logger.debug("Item is instanceof GroupItem '{}'", itemName);
if (item == null) {
logger.debug("BaseItem of GroupItem is null. Ignore and give up!");
return Collections.emptyList();
}
if (item instanceof GroupItem) {
logger.debug("BaseItem of GroupItem is a GroupItem too. Ignore and give up!");
return Collections.emptyList();
}
}
boolean legacy = localTableNameResolver.getTableSchema() == ExpectedTableSchema.LEGACY;
Class<? extends DynamoDBItem<?>> dtoClass = AbstractDynamoDBItem.getDynamoItemClass(item.getClass(),
legacy);
String tableName = localTableNameResolver.fromClass(dtoClass);
DynamoDbAsyncTable<? extends DynamoDBItem<?>> table = getTable(dtoClass);
logger.debug("Item {} (of type {}) will be tried to query using DTO class {} from table {}", itemName,
item.getClass().getSimpleName(), dtoClass.getSimpleName(), tableName);
QueryEnhancedRequest queryExpression = DynamoDBQueryUtils.createQueryExpression(dtoClass,
localTableNameResolver.getTableSchema(), item, filter);
CompletableFuture<List<DynamoDBItem<?>>> itemsFuture = new CompletableFuture<>();
final SdkPublisher<? extends DynamoDBItem<?>> itemPublisher = table.query(queryExpression).items();
Subscriber<DynamoDBItem<?>> pageSubscriber = new PageOfInterestSubscriber<DynamoDBItem<?>>(itemsFuture,
filter.getPageNumber(), filter.getPageSize());
itemPublisher.subscribe(pageSubscriber);
// NumberItem.getUnit() is expensive, we avoid calling it in the loop
// by fetching the unit here.
final Item localItem = item;
final Unit<?> itemUnit = localItem instanceof NumberItem ? ((NumberItem) localItem).getUnit() : null;
try {
@SuppressWarnings("null")
List<HistoricItem> results = itemsFuture.get().stream().map(dynamoItem -> {
HistoricItem historicItem = dynamoItem.asHistoricItem(localItem, itemUnit);
if (historicItem == null) {
logger.warn(
"Dynamo item {} serialized state '{}' cannot be converted to item {} {}. Item type changed since persistence. Ignoring",
dynamoItem.getClass().getSimpleName(), dynamoItem.getState(),
localItem.getClass().getSimpleName(), localItem.getName());
return null;
}
logger.trace("Dynamo item {} converted to historic item: {}", localItem, historicItem);
return historicItem;
}).filter(value -> value != null).collect(Collectors.toList());
logger.debug("Query completed in {} ms. Filter was {}",
Duration.between(start, Instant.now()).toMillis(), filterDescription);
return results;
} catch (InterruptedException e) {
logger.warn("Query interrupted. Filter was {}", filterDescription);
return Collections.emptyList();
} catch (ExecutionException e) {
Throwable cause = e.getCause();
if (cause instanceof ResourceNotFoundException) {
logger.trace("Query failed since the DynamoDB table '{}' does not exist. Filter was {}", tableName,
filterDescription);
} else if (logger.isTraceEnabled()) {
logger.trace("Query failed. Filter was {}", filterDescription, e);
} else {
logger.warn("Query failed {} {}. Filter was {}",
cause == null ? e.getClass().getSimpleName() : cause.getClass().getSimpleName(),
cause == null ? e.getMessage() : cause.getMessage(), filterDescription);
}
return Collections.emptyList();
}
} catch (Exception e) {
logger.error("Unexpected error with query having filter {}: {} {}. Returning empty query results.",
filterDescription, e.getClass().getSimpleName(), e.getMessage());
return Collections.emptyList();
}
}
/**
* Retrieves the item for the given name from the item registry
*
* @param itemName
* @return item with the given name, or null if no such item exists in item registry.
*/
private @Nullable Item getItemFromRegistry(String itemName) {
try {
return itemRegistry.getItem(itemName);
} catch (ItemNotFoundException e1) {
return null;
}
}
@Override
public List<PersistenceStrategy> getDefaultStrategies() {
return List.of(PersistenceStrategy.Globals.RESTORE, PersistenceStrategy.Globals.CHANGE);
}
@Override
public void store(Item item) {
store(item, null);
}
@Override
public void store(Item item, @Nullable String alias) {
// Timestamp and capture state immediately as rest of the store is asynchronous (state might change in between)
ZonedDateTime time = ZonedDateTime.now();
logIfManyQueuedTasks();
if (!(item instanceof GenericItem)) {
return;
}
if (item.getState() instanceof UnDefType) {
logger.debug("Undefined item state received. Not storing item {}.", item.getName());
return;
}
if (!isReadyToStore()) {
logger.warn("Not ready to store (config error?), not storing item {}.", item.getName());
return;
}
// Get Item describing the real type of data
// With non-group items this is same as the argument item. With Group items, this is item describing the type of
// state stored in the group.
final Item itemTemplate;
try {
itemTemplate = getEffectiveItem(item);
} catch (IllegalStateException e) {
// Exception is raised when underlying item type cannot be determined with Group item
// Logged already
return;
}
String effectiveName = (alias != null) ? alias : item.getName();
// We do not want to rely item.state since async context below can execute much later.
// We 'copy' the item for local use. copyItem also normalizes the unit with NumberItems.
final GenericItem copiedItem = copyItem(itemTemplate, item, effectiveName, null);
resolveTableSchema().thenAcceptAsync(resolved -> {
if (!resolved) {
logger.warn("Table schema not resolved, not storing item {}.", copiedItem.getName());
return;
}
DynamoDbEnhancedAsyncClient localClient = client;
DynamoDbAsyncClient localLowlevelClient = lowLevelClient;
DynamoDBConfig localConfig = dbConfig;
DynamoDBTableNameResolver localTableNameResolver = tableNameResolver;
if (!isProperlyConfigured || localClient == null || localLowlevelClient == null || localConfig == null
|| localTableNameResolver == null) {
logger.warn("Not ready to store (config error?), not storing item {}.", item.getName());
return;
}
Integer expireDays = localConfig.getExpireDays();
final DynamoDBItem<?> dto;
switch (localTableNameResolver.getTableSchema()) {
case NEW:
dto = AbstractDynamoDBItem.fromStateNew(copiedItem, time, expireDays);
break;
case LEGACY:
dto = AbstractDynamoDBItem.fromStateLegacy(copiedItem, time);
break;
default:
throw new IllegalStateException("Unexpected. Bug");
}
logger.trace("store() called with item {} {} '{}', which was converted to DTO {}",
copiedItem.getClass().getSimpleName(), effectiveName, copiedItem.getState(), dto);
dto.accept(new DynamoDBItemVisitor<TableCreatingPutItem<? extends DynamoDBItem<?>>>() {
@Override
public TableCreatingPutItem<? extends DynamoDBItem<?>> visit(
DynamoDBBigDecimalItem dynamoBigDecimalItem) {
return new TableCreatingPutItem<DynamoDBBigDecimalItem>(DynamoDBPersistenceService.this,
dynamoBigDecimalItem, getTable(DynamoDBBigDecimalItem.class));
}
@Override
public TableCreatingPutItem<? extends DynamoDBItem<?>> visit(DynamoDBStringItem dynamoStringItem) {
return new TableCreatingPutItem<DynamoDBStringItem>(DynamoDBPersistenceService.this,
dynamoStringItem, getTable(DynamoDBStringItem.class));
}
}).putItemAsync();
}, executor).exceptionally(e -> {
logger.error("Unexcepted error", e);
return null;
});
}
private Item getEffectiveItem(Item item) {
final Item effectiveItem;
if (item instanceof GroupItem) {
Item baseItem = ((GroupItem) item).getBaseItem();
if (baseItem == null) {
// if GroupItem:<ItemType> is not defined in
// *.items using StringType
logger.debug(
"Cannot detect ItemType for {} because the GroupItems' base type isn't set in *.items File.",
item.getName());
Iterator<Item> firstGroupMemberItem = ((GroupItem) item).getMembers().iterator();
if (firstGroupMemberItem.hasNext()) {
effectiveItem = firstGroupMemberItem.next();
} else {
throw new IllegalStateException("GroupItem " + item.getName()
+ " does not have children nor base item set, cannot determine underlying item type. Aborting!");
}
} else {
effectiveItem = baseItem;
}
} else {
effectiveItem = item;
}
return effectiveItem;
}
/**
* Copy item and optionally override name and state
*
* State is normalized to source item's unit with Quantity NumberItems and QuantityTypes
*
* @param itemTemplate 'template item' to be used to construct the new copy. It is also used to determine UoM unit
* and get GenericItem.type
* @param item item that is used to acquire name and state
* @param nameOverride name override for the resulting copy
* @param stateOverride state override for the resulting copy
* @throws IllegalArgumentException when state is QuantityType and not compatible with item
*/
static GenericItem copyItem(Item itemTemplate, Item item, @Nullable String nameOverride,
@Nullable State stateOverride) {
final GenericItem copiedItem;
try {
if (itemTemplate instanceof NumberItem) {
copiedItem = (GenericItem) itemTemplate.getClass().getDeclaredConstructor(String.class, String.class)
.newInstance(itemTemplate.getType(), nameOverride == null ? item.getName() : nameOverride);
} else {
copiedItem = (GenericItem) itemTemplate.getClass().getDeclaredConstructor(String.class)
.newInstance(nameOverride == null ? item.getName() : nameOverride);
}
} catch (InstantiationException | IllegalAccessException | IllegalArgumentException | InvocationTargetException
| NoSuchMethodException | SecurityException e) {
throw new IllegalArgumentException(item.toString(), e);
}
State state = stateOverride == null ? item.getState() : stateOverride;
if (state instanceof QuantityType<?> && itemTemplate instanceof NumberItem) {
Unit<?> itemUnit = ((NumberItem) itemTemplate).getUnit();
if (itemUnit != null) {
State convertedState = ((QuantityType<?>) state).toUnit(itemUnit);
if (convertedState == null) {
logger.error("Unexpected unit conversion failure: {} to item unit {}", state, itemUnit);
throw new IllegalArgumentException(
String.format("Unexpected unit conversion failure: %s to item unit %s", state, itemUnit));
}
state = convertedState;
}
}
copiedItem.setState(state);
return copiedItem;
}
private void logIfManyQueuedTasks() {
if (executor instanceof ThreadPoolExecutor) {
ThreadPoolExecutor localExecutor = (ThreadPoolExecutor) executor;
if (localExecutor.getQueue().size() >= 5) {
logger.trace("executor queue size: {}, remaining space {}. Active threads {}",
localExecutor.getQueue().size(), localExecutor.getQueue().remainingCapacity(),
localExecutor.getActiveCount());
} else if (localExecutor.getQueue().size() >= 50) {
logger.warn(
"Many ({}) tasks queued in executor! This might be sign of bad design or bug in the addon code.",
localExecutor.getQueue().size());
}
}
}
private String filterToString(FilterCriteria filter) {
return String.format(
"FilterCriteria@%s(item=%s, pageNumber=%d, pageSize=%d, time=[%s, %s, %s], state=[%s, %s of %s] )",
System.identityHashCode(filter), filter.getItemName(), filter.getPageNumber(), filter.getPageSize(),
filter.getBeginDate(), filter.getEndDate(), filter.getOrdering(), filter.getOperator(),
filter.getState(), filter.getState() == null ? "null" : filter.getState().getClass().getSimpleName());
}
}