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

Example 16 with ResourceChange

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

the class ProcessorManagerImpl method onChange.

@Override
public void onChange(final List<ResourceChange> changes) {
    for (final ResourceChange change : changes) {
        // check if the event handles something in the search paths
        String path = change.getPath();
        int foundPos = -1;
        for (final String sPath : this.searchPath) {
            if (path.startsWith(sPath)) {
                foundPos = sPath.length();
                break;
            }
        }
        boolean handled = false;
        if (foundPos != -1) {
            // now check if this is a rewriter config
            // relative path after the search path
            final int firstSlash = path.indexOf('/', foundPos);
            final int pattern = path.indexOf(CONFIG_PATH, foundPos);
            // only if firstSlash and pattern are at the same position, this might be a rewriter config
            if (firstSlash == pattern && firstSlash != -1) {
                // the node should be a child of CONFIG_PATH
                if (path.length() > pattern + CONFIG_PATH.length() && path.charAt(pattern + CONFIG_PATH.length()) == '/') {
                    // if a child resource is changed, make sure we have the correct path
                    final int slashPos = path.indexOf('/', pattern + CONFIG_PATH.length() + 1);
                    if (slashPos != -1) {
                        path = path.substring(0, slashPos);
                    }
                    // we should do the update async as we don't want to block the event delivery
                    final String configPath = path;
                    final Thread t = new Thread() {

                        @Override
                        public void run() {
                            if (change.getType() == ChangeType.REMOVED) {
                                removeProcessor(configPath);
                            } else {
                                updateProcessor(configPath);
                            }
                        }
                    };
                    t.start();
                    handled = true;
                }
            }
        }
        if (!handled && change.getType() == ChangeType.REMOVED) {
            final Thread t = new Thread() {

                @Override
                public void run() {
                    checkRemoval(change.getPath());
                }
            };
            t.start();
        }
    }
}

Example 17 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 resource change listener, only type and external needs to be checkd.
     * @param changes The list of changes
     * @param config The resource change listener info
     * @return The filtered list.
     */
private List<ResourceChange> filterChanges(final Iterable<ResourceChange> changes, final ResourceChangeListenerInfo 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 18 with ResourceChange

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

the class ResourceProviderTracker method postResourceProviderChange.

/**
     * Post a change event for a resource provider change
     * @param type The change type
     * @param info The resource provider
     */
private void postResourceProviderChange(final ProviderEvent event) {
    final ObservationReporter or = this.providerReporter;
    if (or != null) {
        final ResourceChange change = new ResourceChange(event.isAdd ? ChangeType.PROVIDER_ADDED : ChangeType.PROVIDER_REMOVED, event.path, false);
        or.reportChanges(Collections.singletonList(change), false);
    }
}

Example 19 with ResourceChange

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

the class BasicObservationReporter method reportChanges.

@Override
public void reportChanges(final ObserverConfiguration config, final Iterable<ResourceChange> changes, final boolean distribute) {
    if (config != null && config instanceof BasicObserverConfiguration) {
        final BasicObserverConfiguration observerConfig = (BasicObserverConfiguration) config;
        ResourceChangeListenerInfo previousInfo = null;
        List<ResourceChange> filteredChanges = null;
        for (final ResourceChangeListenerInfo info : observerConfig.getListeners()) {
            if (previousInfo == null || !equals(previousInfo, info)) {
                filteredChanges = filterChanges(changes, info);
                previousInfo = info;
            }
            if (!filteredChanges.isEmpty()) {
                final ResourceChangeListener listener = info.getListener();
                if (listener != null) {
                    listener.onChange(filteredChanges);
                }
            }
        }
        // TODO implement distribute
        if (distribute) {
            logger.error("Distrubte flag is send for observation events, however distribute is currently not implemented!");
        }
    }
}

Example 20 with ResourceChange

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

the class SlingServletResolver method onChange.

@Override
public void onChange(final List<ResourceChange> changes) {
    boolean flushCache = false;
    for (final ResourceChange change : changes) {
        // if the path of the event is a sub path of a search path
        // we flush the whole cache
        final String path = change.getPath();
        int index = 0;
        while (!flushCache && index < searchPaths.length) {
            if (path.startsWith(this.searchPaths[index])) {
                flushCache = true;
            }
            index++;
        }
        if (flushCache) {
            flushCache();
            // we can stop looping
            break;
        }
    }
}