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[Meteoalerte] Add an IconProvider (openhab#14811)
* Solving activation / deactivation of IT4Wifi thing glitches. * Some code enhancements * Addition of an IconProvider --------- Signed-off-by: clinique <[email protected]> Signed-off-by: Thomas Burri <[email protected]>
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...alerte/src/main/java/org/openhab/binding/meteoalerte/internal/MeteoAlertIconProvider.java
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| /** | ||
| * Copyright (c) 2010-2023 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.binding.meteoalerte.internal; | ||
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| import static org.openhab.binding.meteoalerte.internal.MeteoAlerteBindingConstants.*; | ||
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| import java.io.ByteArrayInputStream; | ||
| import java.io.IOException; | ||
| import java.io.InputStream; | ||
| import java.net.URL; | ||
| import java.nio.charset.StandardCharsets; | ||
| import java.util.Locale; | ||
| import java.util.Set; | ||
|
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| import org.eclipse.jdt.annotation.NonNullByDefault; | ||
| import org.eclipse.jdt.annotation.Nullable; | ||
| import org.openhab.binding.meteoalerte.internal.json.ResponseFieldDTO.AlertLevel; | ||
| import org.openhab.core.i18n.TranslationProvider; | ||
| import org.openhab.core.ui.icon.IconProvider; | ||
| import org.openhab.core.ui.icon.IconSet; | ||
| import org.openhab.core.ui.icon.IconSet.Format; | ||
| import org.osgi.framework.BundleContext; | ||
| import org.osgi.service.component.annotations.Activate; | ||
| import org.osgi.service.component.annotations.Component; | ||
| import org.osgi.service.component.annotations.Reference; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
||
| /** | ||
| * The {@link MeteoAlertIconProvider} is the class providing binding related icons. | ||
| * | ||
| * @author Gaël L'hopital - Initial contribution | ||
| */ | ||
| @Component(service = { IconProvider.class, MeteoAlertIconProvider.class }) | ||
| @NonNullByDefault | ||
| public class MeteoAlertIconProvider implements IconProvider { | ||
| private static final String DEFAULT_LABEL = "Météo Alerte Icons"; | ||
| private static final String DEFAULT_DESCRIPTION = "Icons illustrating weather events provided by Météo Alerte"; | ||
| private static final Set<String> ICONS = Set.of(WAVE, AVALANCHE, HEAT, FREEZE, FLOOD, SNOW, STORM, RAIN, WIND, | ||
| "meteo_france"); | ||
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| private final Logger logger = LoggerFactory.getLogger(MeteoAlertIconProvider.class); | ||
| private final BundleContext context; | ||
| private final TranslationProvider i18nProvider; | ||
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| @Activate | ||
| public MeteoAlertIconProvider(final BundleContext context, final @Reference TranslationProvider i18nProvider) { | ||
| this.context = context; | ||
| this.i18nProvider = i18nProvider; | ||
| } | ||
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| @Override | ||
| public Set<IconSet> getIconSets() { | ||
| return getIconSets(null); | ||
| } | ||
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| @Override | ||
| public Set<IconSet> getIconSets(@Nullable Locale locale) { | ||
| String label = getText("label", DEFAULT_LABEL, locale); | ||
| String description = getText("decription", DEFAULT_DESCRIPTION, locale); | ||
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| return Set.of(new IconSet(BINDING_ID, label, description, Set.of(Format.SVG))); | ||
| } | ||
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| private String getText(String entry, String defaultValue, @Nullable Locale locale) { | ||
| String text = defaultValue; | ||
| if (locale != null) { | ||
| text = i18nProvider.getText(context.getBundle(), "iconset." + entry, defaultValue, locale); | ||
| text = text == null ? defaultValue : text; | ||
| } | ||
| return text; | ||
| } | ||
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| @Override | ||
| public @Nullable Integer hasIcon(String category, String iconSetId, Format format) { | ||
| return ICONS.contains(category) && iconSetId.equals(BINDING_ID) && format == Format.SVG ? 0 : null; | ||
| } | ||
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| public @Nullable InputStream getIcon(String category, String state) { | ||
| return getIcon(category, BINDING_ID, state, Format.SVG); | ||
| } | ||
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| @Override | ||
| public @Nullable InputStream getIcon(String category, String iconSetId, @Nullable String state, Format format) { | ||
| String icon = getResource(category); | ||
| if (icon.isEmpty()) { | ||
| return null; | ||
| } | ||
|
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| if (state != null) { | ||
| try { | ||
| Integer ordinal = Integer.valueOf(state); | ||
| AlertLevel alertLevel = ordinal < AlertLevel.values().length ? AlertLevel.values()[ordinal] | ||
| : AlertLevel.UNKNOWN; | ||
| icon = icon.replaceAll(AlertLevel.UNKNOWN.color, alertLevel.color); | ||
|
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| } catch (NumberFormatException e) { | ||
| logger.debug("{} is not a valid DecimalType", state); | ||
| } | ||
| } | ||
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| return new ByteArrayInputStream(icon.getBytes()); | ||
| } | ||
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| private String getResource(String iconName) { | ||
| String result = ""; | ||
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| URL iconResource = context.getBundle().getEntry("icon/%s.svg".formatted(iconName)); | ||
| try (InputStream stream = iconResource.openStream()) { | ||
| result = new String(stream.readAllBytes(), StandardCharsets.UTF_8); | ||
| } catch (IOException e) { | ||
| logger.warn("Unable to load ressource '{}' : {}", iconResource.getPath(), e.getMessage()); | ||
| } | ||
| return result; | ||
| } | ||
| } |
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