use of org.apache.sling.resourceresolver.impl.providers.stateful.AuthenticatedResourceProvider in project sling by apache.
the class ResourceResolverControl method listChildren.
/**
* This method asks all matching resource providers for the children iterators,
* merges them, adds {@link SyntheticResource}s (see
* {@link #getResource(String, Resource, Map, boolean)} for more details),
* filters out the duplicates and returns the resulting iterator. All
* transformations are done lazily, during the {@link Iterator#hasNext()}
* invocation on the result.
*/
@SuppressWarnings("unchecked")
public Iterator<Resource> listChildren(final ResourceResolverContext context, final Resource parent) {
final String parentPath = parent.getPath();
// 3 sources are combined: children of the provider which owns 'parent',
// providers which are directly mounted at a child path,
// synthetic resources for providers mounted at a lower level
// children of the 'parent' provider
Iterator<Resource> realChildren = null;
final AuthenticatedResourceProvider provider = this.getBestMatchingProvider(context, parentPath);
if (provider != null) {
realChildren = provider.listChildren(parent);
}
final Set<String> visitedNames = new HashSet<>();
IteratorChain chain = new IteratorChain();
if (realChildren != null) {
chain.addIterator(realChildren);
}
// synthetic and providers are done in one loop
final Node<ResourceProviderHandler> node = getResourceProviderStorage().getTree().getNode(parent.getPath());
if (node != null) {
final List<Resource> syntheticList = new ArrayList<>();
final List<Resource> providerList = new ArrayList<>();
for (final Entry<String, Node<ResourceProviderHandler>> entry : node.getChildren().entrySet()) {
final String name = entry.getKey();
final ResourceProviderHandler handler = entry.getValue().getValue();
PathBuilder pathBuilder = new PathBuilder(parent.getPath());
pathBuilder.append(name);
final String childPath = pathBuilder.toString();
if (handler == null) {
syntheticList.add(new SyntheticResource(context.getResourceResolver(), childPath, ResourceProvider.RESOURCE_TYPE_SYNTHETIC));
} else {
Resource rsrc = null;
try {
final AuthenticatedResourceProvider rp = context.getProviderManager().getOrCreateProvider(handler, this);
rsrc = rp == null ? null : rp.getResource(childPath, parent, null);
} catch (final LoginException ignore) {
// ignore
}
if (rsrc != null) {
providerList.add(rsrc);
} else {
// otherwise we need to make sure that no one else is providing this child
if (entry.getValue().getChildren().isEmpty()) {
syntheticList.add(new SyntheticResource(context.getResourceResolver(), childPath, ResourceProvider.RESOURCE_TYPE_SYNTHETIC));
} else {
visitedNames.add(name);
}
}
}
}
if (!providerList.isEmpty()) {
chain.addIterator(providerList.iterator());
}
if (!syntheticList.isEmpty()) {
chain.addIterator(syntheticList.iterator());
}
}
if (chain.size() == 0) {
return Collections.EMPTY_LIST.iterator();
}
return new UniqueResourceIterator(visitedNames, chain);
}
use of org.apache.sling.resourceresolver.impl.providers.stateful.AuthenticatedResourceProvider in project sling by apache.
the class ResourceResolverControl method queryResources.
/**
* Queries all resource providers and combines the results.
*/
public Iterator<Map<String, Object>> queryResources(final ResourceResolverContext context, final String query, final String language) {
final List<AuthenticatedResourceProvider> queryableRP = getQueryableProviders(context, language);
final List<Iterator<Map<String, Object>>> iterators = new ArrayList<>(queryableRP.size());
for (AuthenticatedResourceProvider p : queryableRP) {
iterators.add(p.queryResources(query, language));
}
return new ChainedIterator<>(iterators.iterator());
}
use of org.apache.sling.resourceresolver.impl.providers.stateful.AuthenticatedResourceProvider in project sling by apache.
the class ResourceResolverControl method copy.
/**
* Tries to find a resource provider accepting both paths and invokes
* {@link AuthenticatedResourceProvider#copy(String, String)} method on it.
* Returns false if there's no such provider.
*/
public Resource copy(final ResourceResolverContext context, final String srcAbsPath, final String destAbsPath) throws PersistenceException {
final AuthenticatedResourceProvider optimizedSourceProvider = checkSourceAndDest(context, srcAbsPath, destAbsPath);
if (optimizedSourceProvider != null && optimizedSourceProvider.copy(srcAbsPath, destAbsPath)) {
return this.getResource(context, destAbsPath + '/' + ResourceUtil.getName(srcAbsPath), null, null, false);
}
final Resource srcResource = this.getResource(context, srcAbsPath, null, null, false);
final List<Resource> newResources = new ArrayList<>();
boolean rollback = true;
try {
this.copy(context, srcResource, destAbsPath, newResources);
rollback = false;
return newResources.get(0);
} finally {
if (rollback) {
for (final Resource rsrc : newResources) {
this.delete(context, rsrc);
}
}
}
}
use of org.apache.sling.resourceresolver.impl.providers.stateful.AuthenticatedResourceProvider in project sling by apache.
the class ResourceResolverControl method findResources.
/**
* Queries all resource providers and combines the results.
*/
public Iterator<Resource> findResources(final ResourceResolverContext context, final String query, final String language) {
final List<AuthenticatedResourceProvider> queryableRP = getQueryableProviders(context, language);
final List<Iterator<Resource>> iterators = new ArrayList<>(queryableRP.size());
for (AuthenticatedResourceProvider p : queryableRP) {
iterators.add(p.findResources(query, language));
}
return new ChainedIterator<>(iterators.iterator());
}
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