/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.chemistry.opencmis.server.impl.atompub;
import static org.apache.chemistry.opencmis.commons.impl.CollectionsHelper.isNullOrEmpty;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.chemistry.opencmis.commons.data.ObjectData;
import org.apache.chemistry.opencmis.commons.exceptions.CmisRuntimeException;
import org.apache.chemistry.opencmis.commons.impl.Constants;
import org.apache.chemistry.opencmis.commons.impl.UrlBuilder;
import org.apache.chemistry.opencmis.commons.server.CallContext;
import org.apache.chemistry.opencmis.commons.server.CmisService;
import org.apache.chemistry.opencmis.commons.server.ObjectInfo;
import org.apache.chemistry.opencmis.commons.spi.Holder;
import org.apache.chemistry.opencmis.server.shared.TempStoreOutputStreamFactory;
/**
* Versioning Service operations.
*/
public class VersioningService {
/**
* Check Out.
*/
public static class CheckOut extends AbstractAtomPubServiceCall {
@Override
public void serve(CallContext context, CmisService service, String repositoryId, HttpServletRequest request,
HttpServletResponse response) throws Exception {
assert context != null;
assert service != null;
assert repositoryId != null;
assert request != null;
assert response != null;
// get parameters
TempStoreOutputStreamFactory streamFactory = (TempStoreOutputStreamFactory) context
.get(CallContext.STREAM_FACTORY);
AtomEntryParser parser = new AtomEntryParser(streamFactory);
parser.setIgnoreAtomContentSrc(true); // needed for some clients
parser.parse(request.getInputStream());
// execute
Holder<String> checkOutId = new Holder<String>(parser.getId());
try {
if (stopBeforeService(service)) {
return;
}
service.checkOut(repositoryId, checkOutId, null, null);
if (stopAfterService(service)) {
return;
}
} finally {
parser.release();
}
ObjectInfo objectInfo = service.getObjectInfo(repositoryId, checkOutId.getValue());
if (objectInfo == null) {
throw new CmisRuntimeException("Object Info is missing!");
}
ObjectData object = objectInfo.getObject();
if (object == null) {
throw new CmisRuntimeException("Object is null!");
}
if (object.getId() == null) {
throw new CmisRuntimeException("Object Id is null!");
}
// set headers
UrlBuilder baseUrl = compileBaseUrl(request, repositoryId);
String location = compileUrl(baseUrl, RESOURCE_ENTRY, object.getId());
response.setStatus(HttpServletResponse.SC_CREATED);
response.setContentType(Constants.MEDIATYPE_ENTRY);
response.setHeader("Content-Location", location);
response.setHeader("Location", location);
// write XML
AtomEntry entry = new AtomEntry();
entry.startDocument(response.getOutputStream(), getNamespaces(service));
writeObjectEntry(service, entry, object, null, repositoryId, null, null, baseUrl, true,
context.getCmisVersion());
entry.endDocument();
}
}
/**
* Get all versions.
*/
public static class GetAllVersions extends AbstractAtomPubServiceCall {
@Override
public void serve(CallContext context, CmisService service, String repositoryId, HttpServletRequest request,
HttpServletResponse response) throws Exception {
assert context != null;
assert service != null;
assert repositoryId != null;
assert request != null;
assert response != null;
// get parameters
String objectId = getStringParameter(request, Constants.PARAM_ID);
String versionSeriesId = getStringParameter(request, Constants.PARAM_VERSION_SERIES_ID);
String filter = getStringParameter(request, Constants.PARAM_FILTER);
Boolean includeAllowableActions = getBooleanParameter(request, Constants.PARAM_ALLOWABLE_ACTIONS);
// execute
if (stopBeforeService(service)) {
return;
}
List<ObjectData> versions = service.getAllVersions(repositoryId, objectId, versionSeriesId, filter,
includeAllowableActions, null);
if (stopAfterService(service)) {
return;
}
if (isNullOrEmpty(versions)) {
throw new CmisRuntimeException("Version list is null or empty!");
}
// set headers
response.setStatus(HttpServletResponse.SC_OK);
response.setContentType(Constants.MEDIATYPE_FEED);
// write XML
AtomFeed feed = new AtomFeed();
feed.startDocument(response.getOutputStream(), getNamespaces(service));
feed.startFeed(true);
// write basic Atom feed elements
ObjectInfo latestObjectInfo = service.getObjectInfo(repositoryId, versions.get(0).getId());
ObjectInfo firstObjectInfo = service.getObjectInfo(repositoryId, versions.get(versions.size() - 1).getId());
feed.writeFeedElements(versionSeriesId, null, firstObjectInfo.getCreatedBy(), latestObjectInfo.getName(),
latestObjectInfo.getLastModificationDate(), null, null);
// write links
UrlBuilder baseUrl = compileBaseUrl(request, repositoryId);
feed.writeServiceLink(baseUrl.toString(), repositoryId);
if (objectId != null) {
feed.writeViaLink(compileUrl(baseUrl, RESOURCE_ENTRY, objectId));
}
// write entries
AtomEntry entry = new AtomEntry(feed.getWriter());
for (ObjectData object : versions) {
if (object == null) {
continue;
}
writeObjectEntry(service, entry, object, null, repositoryId, null, null, baseUrl, false,
context.getCmisVersion());
}
// we are done
feed.endFeed();
feed.endDocument();
}
}
/**
* Delete object.
*/
public static class DeleteAllVersions extends AbstractAtomPubServiceCall {
@Override
public void serve(CallContext context, CmisService service, String repositoryId, HttpServletRequest request,
HttpServletResponse response) throws Exception {
assert context != null;
assert service != null;
assert repositoryId != null;
assert request != null;
assert response != null;
// get parameters
String objectId = getStringParameter(request, Constants.PARAM_ID);
// execute
if (stopBeforeService(service)) {
return;
}
service.deleteObjectOrCancelCheckOut(repositoryId, objectId, Boolean.TRUE, null);
if (stopAfterService(service)) {
return;
}
// set headers
response.setStatus(HttpServletResponse.SC_NO_CONTENT);
}
}
}