/*
* Copyright 2008 - 2009 Lars Heuer (heuer[at]semagia.com). All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.semagia.atomico.server.impl.jaxrs;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.Request;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.ResponseBuilder;
import javax.ws.rs.core.UriInfo;
import com.semagia.atomico.dm.IWritableRepresentation;
import com.semagia.atomico.server.UnsupportedMediaTypeException;
import com.semagia.atomico.server.storage.StorageException;
/**
* Resource which provides a fragments entry and a snapshots entry for
* a collection.
*
* @author Lars Heuer (heuer[at]semagia.com) <a href="http://www.semagia.com/">Semagia</a>
*/
@Path("/{collection}/")
public final class CollectionFeedResource extends AbstractCollectionAwareFeedResource {
public CollectionFeedResource(@Context Request req,
@Context UriInfo uriInfo,
@PathParam("collection") String collectionId)
throws StorageException {
super(req, uriInfo, collectionId);
ResponseUtils.ensureExists(_collInfo);
}
/* (non-Javadoc)
* @see com.semagia.atomico.server.impl.jaxrs.AbstractBaseResource#lastModification()
*/
@Override
protected long lastModification() {
return _collInfo.getUpdated();
}
/**
* Generates the collection feed.
*
* @param headers The HTTP headers.
* @return A reponse containing the collection feed.
* @throws StorageException In case of an error.
* @throws UnsupportedMediaTypeException
*/
@GET
public Response getCollection(@Context HttpHeaders headers) throws StorageException, UnsupportedMediaTypeException {
final ResponseBuilder builder = makeResponseBuilder();
final IWritableRepresentation writable = _feedFactory.createCollectionFeed(
getBaseURI(), getStorage(), getConfiguration(),
_collInfo,
MediaTypeUtils.toAtomicoMediaType(headers.getAcceptableMediaTypes()));
return ResponseUtils.buildStreamingEntity(builder, writable);
}
/**
* Delegates the request to the "fragements" subresource.
*
* @return The fragemnts feed.
* @throws StorageException In case of an error.
*/
@Path("fragments/")
public FragmentsFeedResource getFragments() throws StorageException {
return new FragmentsFeedResource(_request, _uriInfo, _collInfo);
}
/**
* Delegates the request to the "snapshots" subresource.
*
* @return The snapshots feed.
* @throws StorageException In case of an error.
*/
@Path("snapshots/")
public SnapshotsFeedResource getSnapshots() throws StorageException {
return new SnapshotsFeedResource(_request, _uriInfo, _collInfo);
}
}