[semantics] Remove semantic metadata on item tag removal (#1860)

* Remove semantic update on tag removal

Fixes #1841

Signed-off-by: Simon Lamon <simonlamon93@hotmail.com>
pull/1909/head
silamon 2020-12-08 17:12:14 +01:00 committed by GitHub
parent e075df30f8
commit 2f5a6269c2
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2 changed files with 176 additions and 2 deletions

View File

@ -104,7 +104,6 @@ public class SemanticsMetadataProvider extends AbstractProvider<Metadata>
*
* @param item the item to update the metadata for
*/
@SuppressWarnings({ "null", "unused" })
private void processItem(Item item) {
MetadataKey key = new MetadataKey(NAMESPACE, item.getName());
Map<String, Object> configuration = new HashMap<>();
@ -119,6 +118,11 @@ public class SemanticsMetadataProvider extends AbstractProvider<Metadata>
} else {
notifyListenersAboutUpdatedElement(oldMd, md);
}
} else {
Metadata removedMd = semantics.remove(item.getName());
if (removedMd != null) {
notifyListenersAboutRemovedElement(removedMd);
}
}
}
@ -242,7 +246,6 @@ public class SemanticsMetadataProvider extends AbstractProvider<Metadata>
processItem(item);
}
@SuppressWarnings("null")
@Override
public void removed(Item item) {
Metadata removedMd = semantics.remove(item.getName());

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@ -0,0 +1,171 @@
/**
* Copyright (c) 2010-2020 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.core.semantics.internal;
import static org.junit.jupiter.api.Assertions.*;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.*;
import java.util.Collection;
import java.util.Optional;
import org.eclipse.jdt.annotation.NonNull;
import org.eclipse.jdt.annotation.NonNullByDefault;
import org.eclipse.jdt.annotation.Nullable;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.ArgumentCaptor;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;
import org.mockito.junit.jupiter.MockitoSettings;
import org.mockito.quality.Strictness;
import org.openhab.core.common.registry.ProviderChangeListener;
import org.openhab.core.items.GenericItem;
import org.openhab.core.items.Item;
import org.openhab.core.items.ItemRegistry;
import org.openhab.core.items.Metadata;
import org.openhab.core.library.items.SwitchItem;
/**
* @author Simon Lamon - Initial contribution
*/
@NonNullByDefault
@ExtendWith(MockitoExtension.class)
@MockitoSettings(strictness = Strictness.WARN)
public class SemanticsMetadataProviderTest {
private static final String ITEM_NAME = "switchItem";
private @NonNullByDefault({}) @Mock ItemRegistry itemRegistry;
private @NonNullByDefault({}) @Mock ProviderChangeListener<@NonNull Metadata> changeListener;
private @NonNullByDefault({}) SemanticsMetadataProvider semanticsMetadataProvider;
@BeforeEach
public void beforeEach() throws Exception {
semanticsMetadataProvider = new SemanticsMetadataProvider(itemRegistry) {
{
addProviderChangeListener(changeListener);
}
};
}
private void assertCorrectAddedEvents(Metadata expected) {
ArgumentCaptor<Metadata> eventCaptor = ArgumentCaptor.forClass(Metadata.class);
verify(changeListener, atLeastOnce()).added(eq(semanticsMetadataProvider), eventCaptor.capture());
Metadata event = eventCaptor.getAllValues().stream().findFirst().get();
assertEquals(expected, event);
}
private void assertCorrectUpdatedEvents(Metadata oldExpected, Metadata expected) {
ArgumentCaptor<Metadata> eventCaptor = ArgumentCaptor.forClass(Metadata.class);
ArgumentCaptor<Metadata> oldEventCaptor = ArgumentCaptor.forClass(Metadata.class);
verify(changeListener, atLeastOnce()).updated(eq(semanticsMetadataProvider), oldEventCaptor.capture(),
eventCaptor.capture());
Metadata oldEvent = oldEventCaptor.getAllValues().stream().findFirst().get();
Metadata event = eventCaptor.getAllValues().stream().findFirst().get();
assertEquals(oldExpected, oldEvent);
assertEquals(expected, event);
}
private void assertCorrectRemoveEvents(Metadata expected) {
ArgumentCaptor<Metadata> eventCaptor = ArgumentCaptor.forClass(Metadata.class);
verify(changeListener, atLeastOnce()).removed(eq(semanticsMetadataProvider), eventCaptor.capture());
Metadata event = eventCaptor.getAllValues().stream().findFirst().get();
assertEquals(expected, event);
}
@Test
public void testItemAdded() {
GenericItem item = new SwitchItem(ITEM_NAME);
item.addTag("Door");
semanticsMetadataProvider.added(item);
Metadata metadata = getMetadata(item);
assertNotNull(metadata);
if (metadata != null) {
assertEquals("Equipment_Door", metadata.getValue());
assertCorrectAddedEvents(metadata);
}
}
@Test
public void testItemUpdatedToAnotherTag() {
GenericItem oldItem = new SwitchItem(ITEM_NAME);
oldItem.addTag("Door");
semanticsMetadataProvider.added(oldItem);
Metadata oldMetadata = getMetadata(oldItem);
assertNotNull(oldMetadata);
GenericItem newItem = new SwitchItem(ITEM_NAME);
newItem.addTag("Indoor");
semanticsMetadataProvider.updated(oldItem, newItem);
Metadata metadata = getMetadata(newItem);
assertNotNull(metadata);
if (oldMetadata != null && metadata != null) {
assertEquals("Location_Indoor", metadata.getValue());
assertCorrectUpdatedEvents(oldMetadata, metadata);
}
}
@Test
public void testItemUpdatedToNoTag() {
GenericItem oldItem = new SwitchItem(ITEM_NAME);
oldItem.addTag("Door");
semanticsMetadataProvider.added(oldItem);
Metadata oldMetadata = getMetadata(oldItem);
assertNotNull(oldMetadata);
GenericItem newItem = new SwitchItem(ITEM_NAME);
semanticsMetadataProvider.updated(oldItem, newItem);
Metadata metadata = getMetadata(newItem);
assertNull(metadata);
if (oldMetadata != null) {
assertCorrectRemoveEvents(oldMetadata);
}
}
@Test
public void testItemRemoved() {
GenericItem item = new SwitchItem(ITEM_NAME);
item.addTag("Door");
semanticsMetadataProvider.added(item);
Metadata oldMetadata = getMetadata(item);
assertNotNull(oldMetadata);
semanticsMetadataProvider.removed(item);
Metadata metadata = getMetadata(item);
assertNull(metadata);
if (oldMetadata != null) {
assertCorrectRemoveEvents(oldMetadata);
}
}
private @Nullable Metadata getMetadata(Item item) {
Collection<Metadata> metadataCollection = semanticsMetadataProvider.getAll();
Optional<Metadata> foundMetadata = metadataCollection.stream()
.filter(metadata -> metadata.getUID().getItemName().equals(item.getName())).findFirst();
if (foundMetadata.isPresent()) {
return foundMetadata.get();
} else {
return null;
}
}
}