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
14 package org.openhab.binding.miio.internal.basic;
16 import static java.nio.file.StandardWatchEventKinds.*;
17 import static org.openhab.binding.miio.internal.MiIoBindingConstants.BINDING_ID;
20 import java.io.IOException;
22 import java.nio.file.Path;
23 import java.nio.file.Paths;
24 import java.nio.file.WatchEvent;
25 import java.nio.file.WatchEvent.Kind;
26 import java.util.ArrayList;
27 import java.util.Collections;
28 import java.util.HashMap;
29 import java.util.List;
32 import org.eclipse.jdt.annotation.NonNullByDefault;
33 import org.eclipse.jdt.annotation.Nullable;
34 import org.openhab.binding.miio.internal.MiIoBindingConstants;
35 import org.openhab.binding.miio.internal.Utils;
36 import org.openhab.core.config.core.ConfigConstants;
37 import org.openhab.core.service.AbstractWatchService;
38 import org.osgi.framework.Bundle;
39 import org.osgi.framework.FrameworkUtil;
40 import org.osgi.service.component.annotations.Activate;
41 import org.osgi.service.component.annotations.Component;
42 import org.slf4j.Logger;
43 import org.slf4j.LoggerFactory;
45 import com.google.gson.Gson;
46 import com.google.gson.GsonBuilder;
47 import com.google.gson.JsonIOException;
48 import com.google.gson.JsonObject;
49 import com.google.gson.JsonSyntaxException;
52 * The {@link MiIoDatabaseWatchService} creates a registry of database file per ModelId
54 * @author Marcel Verpaalen - Initial contribution
56 @Component(service = MiIoDatabaseWatchService.class)
58 public class MiIoDatabaseWatchService extends AbstractWatchService {
59 private static final String LOCAL_DATABASE_PATH = ConfigConstants.getConfigFolder() + File.separator + "misc"
60 + File.separator + BINDING_ID;
61 private static final String DATABASE_FILES = ".json";
62 private static final Gson GSON = new GsonBuilder().serializeNulls().create();
64 private final Logger logger = LoggerFactory.getLogger(MiIoDatabaseWatchService.class);
65 private Map<String, URL> databaseList = new HashMap<>();
68 public MiIoDatabaseWatchService() {
69 super(LOCAL_DATABASE_PATH);
71 "Started miio basic devices local databases watch service. Watching for database files at path: {}",
73 processWatchEvent(null, null, Paths.get(LOCAL_DATABASE_PATH));
75 if (logger.isTraceEnabled()) {
76 for (String device : databaseList.keySet()) {
77 logger.trace("Device: {} using URL: {}", device, databaseList.get(device));
83 protected boolean watchSubDirectories() {
88 protected Kind<?>[] getWatchEventKinds(@Nullable Path directory) {
89 return new Kind<?>[] { ENTRY_CREATE, ENTRY_DELETE, ENTRY_MODIFY };
93 protected void processWatchEvent(@Nullable WatchEvent<?> event, @Nullable Kind<?> kind, @Nullable Path path) {
95 final Path p = path.getFileName();
96 if (p != null && p.toString().endsWith(DATABASE_FILES)) {
97 logger.debug("Local Databases file {} changed. Refreshing device database.", p.getFileName());
104 * Return the database file URL for a given modelId
106 * @param modelId the model
107 * @return URL with the definition for the model
109 public @Nullable URL getDatabaseUrl(String modelId) {
110 return databaseList.get(modelId);
113 private void populateDatabase() {
114 Map<String, URL> workingDatabaseList = new HashMap<>();
115 List<URL> urlEntries = findDatabaseFiles();
116 for (URL db : urlEntries) {
117 logger.trace("Adding devices for db file: {}", db);
119 JsonObject deviceMapping = Utils.convertFileToJSON(db);
120 MiIoBasicDevice devdb = GSON.fromJson(deviceMapping, MiIoBasicDevice.class);
121 for (String id : devdb.getDevice().getId()) {
122 workingDatabaseList.put(id, db);
124 } catch (JsonIOException | JsonSyntaxException | IOException e) {
125 logger.debug("Error while processing database '{}': {}", db, e.getMessage());
127 databaseList = workingDatabaseList;
131 private List<URL> findDatabaseFiles() {
132 List<URL> urlEntries = new ArrayList<>();
133 Bundle bundle = FrameworkUtil.getBundle(getClass());
134 urlEntries.addAll(Collections.list(bundle.findEntries(MiIoBindingConstants.DATABASE_PATH, "*.json", false)));
135 String userDbFolder = ConfigConstants.getConfigFolder() + File.separator + "misc" + File.separator + BINDING_ID;
137 File[] userDbFiles = new File(userDbFolder).listFiles((dir, name) -> name.endsWith(".json"));
138 if (userDbFiles != null) {
139 for (File f : userDbFiles) {
140 urlEntries.add(f.toURI().toURL());
141 logger.debug("Adding local json db file: {}, {}", f.getName(), f.toURI().toURL());
144 } catch (IOException e) {
145 logger.debug("Error while searching for database files: {}", e.getMessage());