Examples with ResourceChange org.apache.sling.api.resource.observation.ResourceChange used on opensource projects

Example 1 with ResourceChange

use of org.apache.sling.api.resource.observation.ResourceChange in project sling by apache.

the class JcrResourceListener method onEvent.

/**
     * @see javax.jcr.observation.EventListener#onEvent(javax.jcr.observation.EventIterator)
     */
@Override
public void onEvent(final EventIterator events) {
    final Map<String, ResourceChange> addedEvents = new HashMap<String, ResourceChange>();
    final Map<String, ResourceChange> changedEvents = new HashMap<String, ResourceChange>();
    final Map<String, ResourceChange> removedEvents = new HashMap<String, ResourceChange>();
    while (events.hasNext()) {
        final Event event = events.nextEvent();
        final String identifier;
        final String path;
        try {
            identifier = event.getIdentifier();
            path = event.getPath();
        } catch (final RepositoryException e) {
            // there is nothing we can do about it anyway
            continue;
        }
        final String eventPath = (identifier != null && identifier.startsWith("/") ? identifier : path);
        final int type = event.getType();
        if (type == PROPERTY_ADDED && path.endsWith("/jcr:primaryType")) {
            final int lastSlash = path.lastIndexOf('/');
            final String rsrcPath = path.substring(0, lastSlash);
            // add is stronger than update
            changedEvents.remove(rsrcPath);
            addedEvents.put(rsrcPath, createResourceChange(event, rsrcPath, ChangeType.ADDED));
        } else if (type == PROPERTY_ADDED || type == PROPERTY_REMOVED || type == PROPERTY_CHANGED) {
            final String rsrcPath;
            if (identifier == null || !identifier.startsWith("/")) {
                final int lastSlash = eventPath.lastIndexOf('/');
                rsrcPath = eventPath.substring(0, lastSlash);
            } else {
                rsrcPath = eventPath;
            }
            if (!addedEvents.containsKey(rsrcPath) && !removedEvents.containsKey(rsrcPath) && !changedEvents.containsKey(rsrcPath)) {
                changedEvents.put(rsrcPath, createResourceChange(event, rsrcPath, ChangeType.CHANGED));
            }
        } else if (type == NODE_ADDED) {
            // add is stronger than update
            changedEvents.remove(eventPath);
            addedEvents.put(eventPath, createResourceChange(event, eventPath, ChangeType.ADDED));
        } else if (type == NODE_REMOVED) {
            // remove is stronger than add and change
            addedEvents.remove(eventPath);
            changedEvents.remove(eventPath);
            removedEvents.put(eventPath, createResourceChange(event, eventPath, ChangeType.REMOVED));
        }
    }
    final List<ResourceChange> changes = new ArrayList<ResourceChange>();
    changes.addAll(addedEvents.values());
    changes.addAll(removedEvents.values());
    changes.addAll(changedEvents.values());
    this.baseConfig.getReporter().reportChanges(this.config, changes, false);
}

Example 2 with ResourceChange

use of org.apache.sling.api.resource.observation.ResourceChange in project sling by apache.

the class MapEntries method onChange.

// ---------- ResourceChangeListener interface
/**
     * Handles the change to any of the node properties relevant for vanity URL
     * mappings. The {@link #MapEntries(ResourceResolverFactoryImpl, BundleContext, EventAdmin)}
     * constructor makes sure the event listener is registered to only get
     * appropriate events.
     */
@Override
public void onChange(final List<ResourceChange> changes) {
    final AtomicBoolean resolverRefreshed = new AtomicBoolean(false);
    // the config needs to be reloaded only once
    final AtomicBoolean hasReloadedConfig = new AtomicBoolean(false);
    for (final ResourceChange rc : changes) {
        final String path = rc.getPath();
        log.debug("onChange, type={}, path={}", rc.getType(), path);
        // don't care for system area
        if (path.startsWith(JCR_SYSTEM_PREFIX)) {
            continue;
        }
        boolean changed = false;
        // removal of a resource is handled differently
        if (rc.getType() == ResourceChange.ChangeType.REMOVED) {
            final Boolean result = handleConfigurationUpdate(path, hasReloadedConfig, resolverRefreshed, true);
            if (result != null) {
                if (result) {
                    changed = true;
                } else {
                    changed |= removeResource(path, resolverRefreshed);
                }
            }
        //session.move() is handled differently see also SLING-3713 and
        } else if (rc.getType() == ResourceChange.ChangeType.ADDED) {
            final Boolean result = handleConfigurationUpdate(path, hasReloadedConfig, resolverRefreshed, false);
            if (result != null) {
                if (result) {
                    changed = true;
                } else {
                    changed |= addResource(path, resolverRefreshed);
                }
            }
        } else if (rc.getType() == ResourceChange.ChangeType.CHANGED) {
            final Boolean result = handleConfigurationUpdate(path, hasReloadedConfig, resolverRefreshed, false);
            if (result != null) {
                if (result) {
                    changed = true;
                } else {
                    changed |= updateResource(path, resolverRefreshed);
                }
            }
        }
        if (changed) {
            this.sendChangeEvent();
        }
    }
}

Example 3 with ResourceChange

use of org.apache.sling.api.resource.observation.ResourceChange in project sling by apache.

the class BasicObservationReporter method filterChanges.

/**
     * Filter the change list based on the configuration
     * @param changes The list of changes
     * @param config The configuration
     * @return The filtered list.
     */
private List<ResourceChange> filterChanges(final Iterable<ResourceChange> changes, final ObserverConfiguration config) {
    final ResourceChangeListImpl filtered = new ResourceChangeListImpl(this.searchPath);
    for (final ResourceChange c : changes) {
        if (matches(c, config)) {
            filtered.add(c);
        }
    }
    filtered.lock();
    return filtered;
}

Example 4 with ResourceChange

use of org.apache.sling.api.resource.observation.ResourceChange in project sling by apache.

the class MapEntriesTest method test_vanity_path_updates.

@Test
public void test_vanity_path_updates() throws Exception {
    Resource parent = mock(Resource.class, "parent");
    when(parent.getPath()).thenReturn("/foo/parent");
    when(parent.getName()).thenReturn("parent");
    when(parent.getValueMap()).thenReturn(new ValueMapDecorator(Collections.<String, Object>emptyMap()));
    when(resourceResolver.getResource(parent.getPath())).thenReturn(parent);
    Resource child = mock(Resource.class, "jcrcontent");
    when(child.getPath()).thenReturn("/foo/parent/jcr:content");
    when(child.getName()).thenReturn("jcr:content");
    when(child.getValueMap()).thenReturn(buildValueMap("sling:vanityPath", "/target/found"));
    when(child.getParent()).thenReturn(parent);
    when(parent.getChild(child.getName())).thenReturn(child);
    when(resourceResolver.getResource(child.getPath())).thenReturn(child);
    when(resourceResolver.findResources(anyString(), eq("sql"))).thenAnswer(new Answer<Iterator<Resource>>() {

        @Override
        public Iterator<Resource> answer(InvocationOnMock invocation) throws Throwable {
            return Collections.<Resource>emptySet().iterator();
        }
    });
    mapEntries.doInit();
    mapEntries.initializeVanityPaths();
    // map entries should have no alias atm
    assertTrue(mapEntries.getResolveMaps().isEmpty());
    // add parent
    mapEntries.onChange(Arrays.asList(new ResourceChange(ChangeType.ADDED, parent.getPath(), false)));
    assertTrue(mapEntries.getResolveMaps().isEmpty());
    // add child
    mapEntries.onChange(Arrays.asList(new ResourceChange(ChangeType.ADDED, child.getPath(), false)));
    // two entries for the vanity path
    List<MapEntry> entries = mapEntries.getResolveMaps();
    assertEquals(2, entries.size());
    for (MapEntry entry : entries) {
        assertTrue(entry.getPattern().contains("/target/found"));
    }
    // update parent - no change
    mapEntries.onChange(Arrays.asList(new ResourceChange(ChangeType.CHANGED, parent.getPath(), false)));
    entries = mapEntries.getResolveMaps();
    assertEquals(2, entries.size());
    for (MapEntry entry : entries) {
        assertTrue(entry.getPattern().contains("/target/found"));
    }
    // update child - no change
    mapEntries.onChange(Arrays.asList(new ResourceChange(ChangeType.CHANGED, child.getPath(), false)));
    entries = mapEntries.getResolveMaps();
    assertEquals(2, entries.size());
    for (MapEntry entry : entries) {
        assertTrue(entry.getPattern().contains("/target/found"));
    }
    // remove child - empty again
    when(resourceResolver.getResource(child.getPath())).thenReturn(null);
    when(parent.getChild(child.getName())).thenReturn(null);
    mapEntries.onChange(Arrays.asList(new ResourceChange(ChangeType.REMOVED, child.getPath(), false)));
    assertTrue(mapEntries.getResolveMaps().isEmpty());
    // remove parent - still empty
    when(resourceResolver.getResource(parent.getPath())).thenReturn(null);
    mapEntries.onChange(Arrays.asList(new ResourceChange(ChangeType.REMOVED, parent.getPath(), false)));
    assertTrue(mapEntries.getResolveMaps().isEmpty());
}

Example 5 with ResourceChange

use of org.apache.sling.api.resource.observation.ResourceChange in project sling by apache.

the class BasicObservationReporterTest method assertListener.

@SuppressWarnings("unchecked")
private static void assertListener(ResourceChangeListenerInfo info, String... paths) {
    Set<String> expectedPaths = ImmutableSet.copyOf(paths);
    ArgumentCaptor<List<ResourceChange>> argument = (ArgumentCaptor) ArgumentCaptor.forClass(List.class);
    if (paths.length == 0) {
        verifyNoMoreInteractions(info.getListener());
    } else {
        verify(info.getListener(), atLeastOnce()).onChange(argument.capture());
        Set<String> actualPaths = new HashSet<>();
        for (List<ResourceChange> changeList : argument.getAllValues()) {
            for (ResourceChange change : changeList) {
                actualPaths.add(change.getPath());
            }
        }
        assertEquals(expectedPaths, actualPaths);
    }
}