/*
* 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 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.enums.CmisVersion;
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.server.shared.TempStoreOutputStreamFactory;
/**
* Policy Service operations.
*/
public class PolicyService {
public abstract static class AbstractPoliciesServiceCall extends AbstractAtomPubServiceCall {
/**
* Writes an entry that is attached to an object.
*/
protected void writePolicyEntry(CmisService service, AtomEntry entry, String objectId, ObjectData policy,
String repositoryId, UrlBuilder baseUrl, CmisVersion cmisVersion) throws Exception {
ObjectInfo info = service.getObjectInfo(repositoryId, policy.getId());
if (info == null) {
throw new CmisRuntimeException("Object Info not found!");
}
// start
entry.startEntry(false);
// write the object
entry.writeObject(policy, info, null, null, null, null, cmisVersion);
// write links
UrlBuilder selfLink = compileUrlBuilder(baseUrl, RESOURCE_POLICIES, objectId);
selfLink.addParameter(Constants.PARAM_POLICY_ID, info.getId());
entry.writeSelfLink(selfLink.toString(), null);
// we are done
entry.endEntry();
}
}
/**
* Get applied policies.
*/
public static class GetAppliedPolicies extends AbstractPoliciesServiceCall {
@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 filter = getStringParameter(request, Constants.PARAM_FILTER);
// execute
if (stopBeforeService(service)) {
return;
}
List<ObjectData> policies = service.getAppliedPolicies(repositoryId, objectId, filter, null);
if (stopAfterService(service)) {
return;
}
if (policies == null) {
throw new CmisRuntimeException("Policies are null!");
}
ObjectInfo objectInfo = service.getObjectInfo(repositoryId, objectId);
if (objectInfo == null) {
throw new CmisRuntimeException("Object Info is missing!");
}
// 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
feed.writeFeedElements(objectInfo.getId(), objectInfo.getAtomId(), objectInfo.getCreatedBy(),
objectInfo.getName(), objectInfo.getLastModificationDate(), null, null);
// write links
UrlBuilder baseUrl = compileBaseUrl(request, repositoryId);
feed.writeServiceLink(baseUrl.toString(), repositoryId);
UrlBuilder selfLink = compileUrlBuilder(baseUrl, RESOURCE_POLICIES, objectInfo.getId());
selfLink.addParameter(Constants.PARAM_FILTER, filter);
feed.writeSelfLink(selfLink.toString(), null);
// write entries
AtomEntry entry = new AtomEntry(feed.getWriter());
for (ObjectData policy : policies) {
if (policy == null) {
continue;
}
writePolicyEntry(service, entry, objectInfo.getId(), policy, repositoryId, baseUrl,
context.getCmisVersion());
}
// we are done
feed.endFeed();
feed.endDocument();
}
}
/**
* Apply policy.
*/
public static class ApplyPolicy extends AbstractPoliciesServiceCall {
@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);
TempStoreOutputStreamFactory streamFactory = (TempStoreOutputStreamFactory) context
.get(CallContext.STREAM_FACTORY);
AtomEntryParser parser = new AtomEntryParser(request.getInputStream(), streamFactory);
// execute
try {
if (stopBeforeService(service)) {
return;
}
service.applyPolicy(repositoryId, parser.getId(), objectId, null);
if (stopAfterService(service)) {
return;
}
} finally {
parser.release();
}
ObjectInfo objectInfo = service.getObjectInfo(repositoryId, objectId);
if (objectInfo == null) {
throw new CmisRuntimeException("Object Info is missing!");
}
ObjectData object = objectInfo.getObject();
if (object == null) {
throw new CmisRuntimeException("Object is null!");
}
// set headers
UrlBuilder baseUrl = compileBaseUrl(request, repositoryId);
response.setStatus(HttpServletResponse.SC_CREATED);
response.setContentType(Constants.MEDIATYPE_ENTRY);
response.setHeader("Location", compileUrl(baseUrl, RESOURCE_ENTRY, object.getId()));
// 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();
}
}
/**
* Remove policy.
*/
public static class RemovePolicy 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 policyId = getStringParameter(request, Constants.PARAM_POLICY_ID);
// execute
if (stopBeforeService(service)) {
return;
}
service.removePolicy(repositoryId, policyId, objectId, null);
if (stopAfterService(service)) {
return;
}
// set headers
response.setStatus(HttpServletResponse.SC_NO_CONTENT);
}
}
}