2 * Copyright (c) 2010-2020 Contributors to the openHAB project
4 * See the NOTICE file(s) distributed with this work for additional
7 * This program and the accompanying materials are made available under the
8 * terms of the Eclipse Public License 2.0 which is available at
9 * http://www.eclipse.org/legal/epl-2.0
11 * SPDX-License-Identifier: EPL-2.0
13 package org.openhab.persistence.jdbc.internal;
15 import java.util.List;
16 import java.util.Locale;
20 import org.eclipse.jdt.annotation.NonNullByDefault;
21 import org.eclipse.jdt.annotation.Nullable;
22 import org.openhab.core.items.GroupItem;
23 import org.openhab.core.items.Item;
24 import org.openhab.core.items.ItemNotFoundException;
25 import org.openhab.core.items.ItemRegistry;
26 import org.openhab.core.persistence.FilterCriteria;
27 import org.openhab.core.persistence.HistoricItem;
28 import org.openhab.core.persistence.PersistenceItemInfo;
29 import org.openhab.core.persistence.PersistenceService;
30 import org.openhab.core.persistence.QueryablePersistenceService;
31 import org.openhab.core.persistence.strategy.PersistenceStrategy;
32 import org.openhab.core.types.UnDefType;
33 import org.osgi.framework.BundleContext;
34 import org.osgi.service.component.annotations.Activate;
35 import org.osgi.service.component.annotations.Component;
36 import org.osgi.service.component.annotations.ConfigurationPolicy;
37 import org.osgi.service.component.annotations.Deactivate;
38 import org.osgi.service.component.annotations.Reference;
39 import org.slf4j.Logger;
40 import org.slf4j.LoggerFactory;
43 * This is the implementation of the JDBC {@link PersistenceService}.
45 * @author Helmut Lehmeyer - Initial contribution
46 * @author Kai Kreuzer - Migration to 3.x
49 @Component(service = { PersistenceService.class,
50 QueryablePersistenceService.class }, configurationPid = "org.openhab.jdbc", configurationPolicy = ConfigurationPolicy.REQUIRE)
51 public class JdbcPersistenceService extends JdbcMapper implements QueryablePersistenceService {
53 private final Logger logger = LoggerFactory.getLogger(JdbcPersistenceService.class);
55 private final ItemRegistry itemRegistry;
58 public JdbcPersistenceService(final @Reference ItemRegistry itemRegistry) {
59 this.itemRegistry = itemRegistry;
63 * Called by the SCR to activate the component with its configuration read
66 * @param bundleContext
67 * BundleContext of the Bundle that defines this component
68 * @param configuration
69 * Configuration properties for this component obtained from the
73 public void activate(BundleContext bundleContext, Map<Object, Object> configuration) {
74 logger.debug("JDBC::activate: persistence service activated");
75 updateConfig(configuration);
79 * Called by the SCR to deactivate the component when either the
80 * configuration is removed or mandatory references are no longer satisfied
81 * or the component has simply been stopped.
84 * Reason code for the deactivation:<br>
87 * <li>1 – The component was disabled
88 * <li>2 – A reference became unsatisfied
89 * <li>3 – A configuration was changed
90 * <li>4 – A configuration was deleted
91 * <li>5 – The component was disposed
92 * <li>6 – The bundle was stopped
96 public void deactivate(final int reason) {
97 logger.debug("JDBC::deactivate: persistence bundle stopping. Disconnecting from database. reason={}", reason);
103 public String getId() {
104 logger.debug("JDBC::getName: returning name 'jdbc' for queryable persistence service.");
109 public String getLabel(@Nullable Locale locale) {
114 public void store(Item item) {
122 public void store(Item item, @Nullable String alias) {
123 // Don not store undefined/uninitialised data
124 if (item.getState() instanceof UnDefType) {
125 logger.debug("JDBC::store: ignore Item '{}' because it is UnDefType", item.getName());
128 if (!checkDBAccessability()) {
130 "JDBC::store: No connection to database. Cannot persist item '{}'! Will retry connecting to database when error count:{} equals errReconnectThreshold:{}",
131 item, errCnt, conf.getErrReconnectThreshold());
134 long timerStart = System.currentTimeMillis();
135 storeItemValue(item);
136 logger.debug("JDBC: Stored item '{}' as '{}' in SQL database at {} in {} ms.", item.getName(),
137 item.getState().toString(), (new java.util.Date()).toString(), System.currentTimeMillis() - timerStart);
141 public Set<PersistenceItemInfo> getItemInfo() {
146 * Queries the {@link PersistenceService} for data with a given filter
150 * the filter to apply to the query
151 * @return a time series of items
154 public Iterable<HistoricItem> query(FilterCriteria filter) {
155 if (!checkDBAccessability()) {
156 logger.warn("JDBC::query: database not connected, query aborted for item '{}'", filter.getItemName());
160 // Get the item name from the filter
161 // Also get the Item object so we can determine the type
163 String itemName = filter.getItemName();
164 logger.debug("JDBC::query: item is {}", itemName);
166 item = itemRegistry.getItem(itemName);
167 } catch (ItemNotFoundException e1) {
168 logger.error("JDBC::query: unable to get item for itemName: '{}'. Ignore and give up!", itemName);
172 if (item instanceof GroupItem) {
173 // For Group Item is BaseItem needed to get correct Type of Value.
174 item = GroupItem.class.cast(item).getBaseItem();
175 logger.debug("JDBC::query: item is instanceof GroupItem '{}'", itemName);
177 logger.debug("JDBC::query: BaseItem of GroupItem is null. Ignore and give up!");
180 if (item instanceof GroupItem) {
181 logger.debug("JDBC::query: BaseItem of GroupItem is a GroupItem too. Ignore and give up!");
186 String table = sqlTables.get(itemName);
189 "JDBC::query: unable to find table for query, no data in database for item '{}'. Current number of tables in the database: {}",
190 itemName, sqlTables.size());
191 // if enabled, table will be created immediately
192 logger.warn("JDBC::query: try to generate the table for item '{}'", itemName);
193 table = getTable(item);
196 long timerStart = System.currentTimeMillis();
197 List<HistoricItem> items = getHistItemFilterQuery(filter, conf.getNumberDecimalcount(), table, item);
199 logger.debug("JDBC::query: query for {} returned {} rows in {} ms", item.getName(), items.size(),
200 System.currentTimeMillis() - timerStart);
207 public void updateConfig(Map<Object, Object> configuration) {
208 logger.debug("JDBC::updateConfig");
210 conf = new JdbcConfiguration(configuration);
211 if (conf.valid && checkDBAccessability()) {
213 // connection has been established ... initialization completed!
219 logger.debug("JDBC::updateConfig: configuration complete for service={}.", getId());
223 public List<PersistenceStrategy> getDefaultStrategies() {
224 return List.of(PersistenceStrategy.Globals.CHANGE);