201504.mbox/raw/%3c20150406171307.2E9B6AC0418@hades.apache.org%3e

+
+    /*
+     * 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.math.BigInteger;
+    import java.util.GregorianCalendar;
+    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.data.ObjectInFolderContainer;
+    import org.apache.chemistry.opencmis.commons.data.ObjectInFolderData;
+    import org.apache.chemistry.opencmis.commons.data.ObjectInFolderList;
+    import org.apache.chemistry.opencmis.commons.data.ObjectList;
+    import org.apache.chemistry.opencmis.commons.data.ObjectParentData;
+    import org.apache.chemistry.opencmis.commons.enums.IncludeRelationships;
+    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.impl.server.ObjectInfoImpl;
+    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.server.RenditionInfo;
+
+    /**
+     * Navigation Service operations.
+     */
+    public class NavigationService {
+
+        /**
+         * Children Collection GET.
+         */
+        public static class GetChildren extends AbstractAtomPubServiceCall {
+            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 folderId = getStringParameter(request, Constants.PARAM_ID);
+                String filter = getStringParameter(request, Constants.PARAM_FILTER);
+                String orderBy = getStringParameter(request, Constants.PARAM_ORDER_BY);
+                Boolean includeAllowableActions = getBooleanParameter(request, Constants.PARAM_ALLOWABLE_ACTIONS);
+                IncludeRelationships includeRelationships = getEnumParameter(request, Constants.PARAM_RELATIONSHIPS,
+                        IncludeRelationships.class);
+                String renditionFilter = getStringParameter(request, Constants.PARAM_RENDITION_FILTER);
+                Boolean includePathSegment = getBooleanParameter(request, Constants.PARAM_PATH_SEGMENT);
+                BigInteger maxItems = getBigIntegerParameter(request, Constants.PARAM_MAX_ITEMS);
+                BigInteger skipCount = getBigIntegerParameter(request, Constants.PARAM_SKIP_COUNT);
+
+                // execute
+                if (stopBeforeService(service)) {
+                    return;
+                }
+
+                ObjectInFolderList children = service.getChildren(repositoryId, folderId, filter, orderBy,
+                        includeAllowableActions, includeRelationships, renditionFilter, includePathSegment, maxItems,
+                        skipCount, null);
+
+                if (stopAfterService(service)) {
+                    return;
+                }
+
+                if (children == null) {
+                    throw new CmisRuntimeException("Children are null!");
+                }
+
+                ObjectInfo folderInfo = service.getObjectInfo(repositoryId, folderId);
+                if (folderInfo == null) {
+                    throw new CmisRuntimeException("Folder 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(folderInfo.getId(), folderInfo.getAtomId(), folderInfo.getCreatedBy(),
+                        folderInfo.getName(), folderInfo.getLastModificationDate(), null, children.getNumItems());
+
+                // write links
+                UrlBuilder baseUrl = compileBaseUrl(request, repositoryId);
+
+                feed.writeServiceLink(baseUrl.toString(), repositoryId);
+
+                UrlBuilder selfLink = compileUrlBuilder(baseUrl, RESOURCE_CHILDREN, folderInfo.getId());
+                selfLink.addParameter(Constants.PARAM_FILTER, filter);
+                selfLink.addParameter(Constants.PARAM_ORDER_BY, orderBy);
+                selfLink.addParameter(Constants.PARAM_ALLOWABLE_ACTIONS, includeAllowableActions);
+                selfLink.addParameter(Constants.PARAM_RELATIONSHIPS, includeRelationships);
+                selfLink.addParameter(Constants.PARAM_RENDITION_FILTER, renditionFilter);
+                selfLink.addParameter(Constants.PARAM_PATH_SEGMENT, includePathSegment);
+                selfLink.addParameter(Constants.PARAM_MAX_ITEMS, maxItems);
+                selfLink.addParameter(Constants.PARAM_SKIP_COUNT, skipCount);
+                feed.writeSelfLink(selfLink.toString(), null);
+
+                feed.writeDescribedByLink(compileUrl(baseUrl, RESOURCE_TYPE, folderInfo.getTypeId()));
+
+                feed.writeAllowableActionsLink(compileUrl(baseUrl, RESOURCE_ALLOWABLEACIONS, folderInfo.getId()));
+
+                feed.writeDownLink(compileUrl(baseUrl, RESOURCE_CHILDREN, folderInfo.getId()), Constants.MEDIATYPE_FEED);
+
+                if (folderInfo.supportsDescendants()) {
+                    feed.writeDownLink(compileUrl(baseUrl, RESOURCE_DESCENDANTS, folderInfo.getId()),
+                            Constants.MEDIATYPE_DESCENDANTS);
+                }
+
+                if (folderInfo.supportsFolderTree()) {
+                    feed.writeFolderTreeLink(compileUrl(baseUrl, RESOURCE_FOLDERTREE, folderInfo.getId()));
+                }
+
+                if (folderInfo.hasParent()) {
+                    feed.writeUpLink(compileUrl(baseUrl, RESOURCE_PARENTS, folderInfo.getId()), Constants.MEDIATYPE_FEED);
+                }
+
+                if (folderInfo.getRenditionInfos() != null) {
+                    for (RenditionInfo ri : folderInfo.getRenditionInfos()) {
+                        feed.writeAlternateLink(compileUrl(baseUrl, RESOURCE_CONTENT, ri.getId()), ri.getContenType(),
+                                ri.getKind(), ri.getTitle(), ri.getLength());
+                    }
+                }
+
+                if (folderInfo.hasAcl()) {
+                    feed.writeAclLink(compileUrl(baseUrl, RESOURCE_ACL, folderInfo.getId()));
+                }
+
+                if (folderInfo.supportsPolicies()) {
+                    feed.writeAclLink(compileUrl(baseUrl, RESOURCE_POLICIES, folderInfo.getId()));
+                }
+
+                if (folderInfo.supportsRelationships()) {
+                    feed.writeRelationshipsLink(compileUrl(baseUrl, RESOURCE_RELATIONSHIPS, folderInfo.getId()));
+                }
+
+                UrlBuilder pagingUrl = new UrlBuilder(compileUrlBuilder(baseUrl, RESOURCE_CHILDREN, folderInfo.getId()));
+                pagingUrl.addParameter(Constants.PARAM_FILTER, filter);
+                pagingUrl.addParameter(Constants.PARAM_ORDER_BY, orderBy);
+                pagingUrl.addParameter(Constants.PARAM_ALLOWABLE_ACTIONS, includeAllowableActions);
+                pagingUrl.addParameter(Constants.PARAM_RELATIONSHIPS, includeRelationships);
+                pagingUrl.addParameter(Constants.PARAM_RENDITION_FILTER, renditionFilter);
+                pagingUrl.addParameter(Constants.PARAM_PATH_SEGMENT, includePathSegment);
+                feed.writePagingLinks(pagingUrl, maxItems, skipCount, children.getNumItems(), children.hasMoreItems(),
+                        PAGE_SIZE);
+
+                // write collection
+                feed.writeCollection(compileUrl(baseUrl, RESOURCE_CHILDREN, folderInfo.getId()), null, "Folder collection",
+                        Constants.MEDIATYPE_CMISATOM);
+
+                // write entries
+                if (children.getObjects() != null) {
+                    AtomEntry entry = new AtomEntry(feed.getWriter());
+                    for (ObjectInFolderData object : children.getObjects()) {
+                        if ((object == null) || (object.getObject() == null)) {
+                            continue;
+                        }
+                        writeObjectEntry(service, entry, object.getObject(), null, repositoryId, object.getPathSegment(),
+                                null, baseUrl, false, context.getCmisVersion());
+                    }
+                }
+
+                // write extensions
+                feed.writeExtensions(children);
+
+                // we are done
+                feed.endFeed();
+                feed.endDocument();
+            }
+        }
+
+        /**
+         * Descendants feed GET.
+         */
+        public static class GetDescendants extends AbstractAtomPubServiceCall {
+            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 folderId = getStringParameter(request, Constants.PARAM_ID);
+                BigInteger depth = getBigIntegerParameter(request, Constants.PARAM_DEPTH);
+                String filter = getStringParameter(request, Constants.PARAM_FILTER);
+                Boolean includeAllowableActions = getBooleanParameter(request, Constants.PARAM_ALLOWABLE_ACTIONS);
+                IncludeRelationships includeRelationships = getEnumParameter(request, Constants.PARAM_RELATIONSHIPS,
+                        IncludeRelationships.class);
+                String renditionFilter = getStringParameter(request, Constants.PARAM_RENDITION_FILTER);
+                Boolean includePathSegment = getBooleanParameter(request, Constants.PARAM_PATH_SEGMENT);
+
+                // execute
+                if (stopBeforeService(service)) {
+                    return;
+                }
+
+                List<ObjectInFolderContainer> descendants = service.getDescendants(repositoryId, folderId, depth, filter,
+                        includeAllowableActions, includeRelationships, renditionFilter, includePathSegment, null);
+
+                if (stopAfterService(service)) {
+                    return;
+                }
+
+                if (descendants == null) {
+                    throw new CmisRuntimeException("Descendants are null!");
+                }
+
+                ObjectInfo folderInfo = service.getObjectInfo(repositoryId, folderId);
+                if (folderInfo == null) {
+                    throw new CmisRuntimeException("Folder 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(folderInfo.getId(), folderInfo.getAtomId(), folderInfo.getCreatedBy(),
+                        folderInfo.getName(), folderInfo.getLastModificationDate(), null, null);
+
+                // write links
+                UrlBuilder baseUrl = compileBaseUrl(request, repositoryId);
+
+                feed.writeServiceLink(baseUrl.toString(), repositoryId);
+
+                UrlBuilder selfLink = compileUrlBuilder(baseUrl, RESOURCE_DESCENDANTS, folderInfo.getId());
+                selfLink.addParameter(Constants.PARAM_DEPTH, depth);
+                selfLink.addParameter(Constants.PARAM_FILTER, filter);
+                selfLink.addParameter(Constants.PARAM_ALLOWABLE_ACTIONS, includeAllowableActions);
+                selfLink.addParameter(Constants.PARAM_RELATIONSHIPS, includeRelationships);
+                selfLink.addParameter(Constants.PARAM_RENDITION_FILTER, renditionFilter);
+                selfLink.addParameter(Constants.PARAM_PATH_SEGMENT, includePathSegment);
+                feed.writeSelfLink(selfLink.toString(), null);
+
+                feed.writeViaLink(compileUrl(baseUrl, RESOURCE_ENTRY, folderInfo.getId()));
+
+                feed.writeDownLink(compileUrl(baseUrl, RESOURCE_CHILDREN, folderInfo.getId()), Constants.MEDIATYPE_FEED);
+
+                if (folderInfo.supportsFolderTree()) {
+                    feed.writeFolderTreeLink(compileUrl(baseUrl, RESOURCE_FOLDERTREE, folderInfo.getId()));
+                }
+
+                if (folderInfo.hasParent()) {
+                    feed.writeUpLink(compileUrl(baseUrl, RESOURCE_PARENTS, folderInfo.getId()), Constants.MEDIATYPE_FEED);
+                }
+
+                // write entries
+                AtomEntry entry = new AtomEntry(feed.getWriter());
+                for (ObjectInFolderContainer container : descendants) {
+                    if ((container == null) || (container.getObject() == null)
+                            || (container.getObject().getObject() == null)) {
+                        continue;
+                    }
+                    writeObjectEntry(service, entry, container.getObject().getObject(), container.getChildren(),
+                            repositoryId, container.getObject().getPathSegment(), null, baseUrl, false,
+                            context.getCmisVersion());
+                }
+
+                // we are done
+                feed.endFeed();
+                feed.endDocument();
+            }
+        }
+
+        /**
+         * Folder tree feed GET.
+         */
+        public static class GetFolderTree extends AbstractAtomPubServiceCall {
+            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 folderId = getStringParameter(request, Constants.PARAM_ID);
+                BigInteger depth = getBigIntegerParameter(request, Constants.PARAM_DEPTH);
+                String filter = getStringParameter(request, Constants.PARAM_FILTER);
+                Boolean includeAllowableActions = getBooleanParameter(request, Constants.PARAM_ALLOWABLE_ACTIONS);
+                IncludeRelationships includeRelationships = getEnumParameter(request, Constants.PARAM_RELATIONSHIPS,
+                        IncludeRelationships.class);
+                String renditionFilter = getStringParameter(request, Constants.PARAM_RENDITION_FILTER);
+                Boolean includePathSegment = getBooleanParameter(request, Constants.PARAM_PATH_SEGMENT);
+
+                // execute
+                if (stopBeforeService(service)) {
+                    return;
+                }
+
+                List<ObjectInFolderContainer> folderTree = service.getFolderTree(repositoryId, folderId, depth, filter,
+                        includeAllowableActions, includeRelationships, renditionFilter, includePathSegment, null);
+
+                if (stopAfterService(service)) {
+                    return;
+                }
+
+                if (folderTree == null) {
+                    throw new CmisRuntimeException("Folder tree is null!");
+                }
+
+                ObjectInfo folderInfo = service.getObjectInfo(repositoryId, folderId);
+                if (folderInfo == null) {
+                    throw new CmisRuntimeException("Folder 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(folderInfo.getId(), folderInfo.getAtomId(), folderInfo.getCreatedBy(),
+                        folderInfo.getName(), folderInfo.getLastModificationDate(), null, null);
+
+                // write links
+                UrlBuilder baseUrl = compileBaseUrl(request, repositoryId);
+
+                feed.writeServiceLink(baseUrl.toString(), repositoryId);
+
+                UrlBuilder selfLink = compileUrlBuilder(baseUrl, RESOURCE_FOLDERTREE, folderInfo.getId());
+                selfLink.addParameter(Constants.PARAM_DEPTH, depth);
+                selfLink.addParameter(Constants.PARAM_FILTER, filter);
+                selfLink.addParameter(Constants.PARAM_ALLOWABLE_ACTIONS, includeAllowableActions);
+                selfLink.addParameter(Constants.PARAM_RELATIONSHIPS, includeRelationships);
+                selfLink.addParameter(Constants.PARAM_RENDITION_FILTER, renditionFilter);
+                selfLink.addParameter(Constants.PARAM_PATH_SEGMENT, includePathSegment);
+                feed.writeSelfLink(selfLink.toString(), null);
+
+                feed.writeViaLink(compileUrl(baseUrl, RESOURCE_ENTRY, folderInfo.getId()));
+
+                feed.writeDownLink(compileUrl(baseUrl, RESOURCE_CHILDREN, folderInfo.getId()), Constants.MEDIATYPE_FEED);
+
+                if (folderInfo.supportsDescendants()) {
+                    feed.writeDownLink(compileUrl(baseUrl, RESOURCE_DESCENDANTS, folderInfo.getId()),
+                            Constants.MEDIATYPE_DESCENDANTS);
+                }
+
+                if (folderInfo.hasParent()) {
+                    feed.writeUpLink(compileUrl(baseUrl, RESOURCE_PARENTS, folderInfo.getId()), Constants.MEDIATYPE_FEED);
+                }
+
+                // write entries
+                AtomEntry entry = new AtomEntry(feed.getWriter());
+                for (ObjectInFolderContainer container : folderTree) {
+                    if ((container == null) || (container.getObject() == null)
+                            || (container.getObject().getObject() == null)) {
+                        continue;
+                    }
+                    writeObjectEntry(service, entry, container.getObject().getObject(), container.getChildren(),
+                            repositoryId, container.getObject().getPathSegment(), null, baseUrl, false,
+                            context.getCmisVersion());
+                }
+
+                // we are done
+                feed.endFeed();
+                feed.endDocument();
+            }
+        }
+
+        /**
+         * Object parents feed GET.
+         */
+        public static class GetFolderParent extends AbstractAtomPubServiceCall {
+            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 folderId = getStringParameter(request, Constants.PARAM_ID);
+                String filter = getStringParameter(request, Constants.PARAM_FILTER);
+
+                // execute
+                if (stopBeforeService(service)) {
+                    return;
+                }
+
+                ObjectData object = service.getFolderParent(repositoryId, folderId, filter, null);
+
+                if (stopAfterService(service)) {
+                    return;
+                }
+
+                if (object == null) {
+                    throw new CmisRuntimeException("Object is null!");
+                }
+
+                ObjectInfo objectInfo = service.getObjectInfo(repositoryId, folderId);
+                if (objectInfo == null) {
+                    throw new CmisRuntimeException("Object Info is missing!");
+                }
+
+                // set headers
+                response.setStatus(HttpServletResponse.SC_OK);
+                response.setContentType(Constants.MEDIATYPE_ENTRY);
+
+                // write XML
+                UrlBuilder baseUrl = compileBaseUrl(request, repositoryId);
+
+                AtomEntry entry = new AtomEntry();
+                entry.startDocument(response.getOutputStream(), getNamespaces(service));
+                writeObjectEntry(service, entry, object, null, repositoryId, null, null, baseUrl, true,
+                        context.getCmisVersion());
+                entry.endDocument();
+            }
+        }
+
+        /**
+         * Object parents feed GET.
+         */
+        public static class GetObjectParents extends AbstractAtomPubServiceCall {
+            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);
+                Boolean includeAllowableActions = getBooleanParameter(request, Constants.PARAM_ALLOWABLE_ACTIONS);
+                IncludeRelationships includeRelationships = getEnumParameter(request, Constants.PARAM_RELATIONSHIPS,
+                        IncludeRelationships.class);
+                String renditionFilter = getStringParameter(request, Constants.PARAM_RENDITION_FILTER);
+                Boolean includeRelativePathSegment = getBooleanParameter(request, Constants.PARAM_RELATIVE_PATH_SEGMENT);
+
+                // execute
+                if (stopBeforeService(service)) {
+                    return;
+                }
+
+                List<ObjectParentData> parents = service.getObjectParents(repositoryId, objectId, filter,
+                        includeAllowableActions, includeRelationships, renditionFilter, includeRelativePathSegment, null);
+
+                if (stopAfterService(service)) {
+                    return;
+                }
+
+                if (parents == null) {
+                    throw new CmisRuntimeException("Parents 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_PARENTS, objectInfo.getId());
+                selfLink.addParameter(Constants.PARAM_FILTER, filter);
+                selfLink.addParameter(Constants.PARAM_ALLOWABLE_ACTIONS, includeAllowableActions);
+                selfLink.addParameter(Constants.PARAM_RELATIONSHIPS, includeRelationships);
+                selfLink.addParameter(Constants.PARAM_RENDITION_FILTER, renditionFilter);
+                selfLink.addParameter(Constants.PARAM_RELATIVE_PATH_SEGMENT, includeRelativePathSegment);
+                feed.writeSelfLink(selfLink.toString(), null);
+
+                // write entries
+                AtomEntry entry = new AtomEntry(feed.getWriter());
+                for (ObjectParentData object : parents) {
+                    if ((object == null) || (object.getObject() == null)) {
+                        continue;
+                    }
+                    writeObjectEntry(service, entry, object.getObject(), null, repositoryId, null,
+                            object.getRelativePathSegment(), baseUrl, false, context.getCmisVersion());
+                }
+
+                // we are done
+                feed.endFeed();
+                feed.endDocument();
+            }
+        }
+
+        /**
+         * Checked Out Collection GET.
+         */
+        public static class GetCheckedOutDocs extends AbstractAtomPubServiceCall {
+            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 folderId = getStringParameter(request, Constants.PARAM_FOLDER_ID);
+                String filter = getStringParameter(request, Constants.PARAM_FILTER);
+                String orderBy = getStringParameter(request, Constants.PARAM_ORDER_BY);
+                Boolean includeAllowableActions = getBooleanParameter(request, Constants.PARAM_ALLOWABLE_ACTIONS);
+                IncludeRelationships includeRelationships = getEnumParameter(request, Constants.PARAM_RELATIONSHIPS,
+                        IncludeRelationships.class);
+                String renditionFilter = getStringParameter(request, Constants.PARAM_RENDITION_FILTER);
+                BigInteger maxItems = getBigIntegerParameter(request, Constants.PARAM_MAX_ITEMS);
+                BigInteger skipCount = getBigIntegerParameter(request, Constants.PARAM_SKIP_COUNT);
+
+                // execute
+                if (stopBeforeService(service)) {
+                    return;
+                }
+
+                ObjectList checkedOut = service.getCheckedOutDocs(repositoryId, folderId, filter, orderBy,
+                        includeAllowableActions, includeRelationships, renditionFilter, maxItems, skipCount, null);
+
+                if (stopAfterService(service)) {
+                    return;
+                }
+
+                if (checkedOut == null) {
+                    throw new CmisRuntimeException("Checked Out list is null!");
+                }
+
+                ObjectInfo folderInfo = null;
+                if (folderId != null) {
+                    folderInfo = service.getObjectInfo(repositoryId, folderId);
+                    if (folderInfo == null) {
+                        throw new CmisRuntimeException("Folder Object Info is missing!");
+                    }
+                } else {
+                    folderInfo = new ObjectInfoImpl();
+                    GregorianCalendar now = new GregorianCalendar();
+
+                    ((ObjectInfoImpl) folderInfo).setId("uri:x-checkedout");
+                    ((ObjectInfoImpl) folderInfo).setName("Checked Out");
+                    ((ObjectInfoImpl) folderInfo).setCreatedBy("");
+                    ((ObjectInfoImpl) folderInfo).setCreationDate(now);
+                    ((ObjectInfoImpl) folderInfo).setLastModificationDate(now);
+                    ((ObjectInfoImpl) folderInfo).setHasParent(false);
+                    ((ObjectInfoImpl) folderInfo).setSupportsDescendants(false);
+                    ((ObjectInfoImpl) folderInfo).setSupportsFolderTree(false);
+                }
+
+                // 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(folderInfo.getId(), folderInfo.getAtomId(), folderInfo.getCreatedBy(),
+                        folderInfo.getName(), folderInfo.getLastModificationDate(), null, checkedOut.getNumItems());
+
+                // write links
+                UrlBuilder baseUrl = compileBaseUrl(request, repositoryId);
+
+                feed.writeServiceLink(baseUrl.toString(), repositoryId);
+
+                UrlBuilder selfLink = compileUrlBuilder(baseUrl, RESOURCE_CHECKEDOUT, folderInfo.getId());
+                selfLink.addParameter(Constants.PARAM_FILTER, filter);
+                selfLink.addParameter(Constants.PARAM_ORDER_BY, orderBy);
+                selfLink.addParameter(Constants.PARAM_ALLOWABLE_ACTIONS, includeAllowableActions);
+                selfLink.addParameter(Constants.PARAM_RELATIONSHIPS, includeRelationships);
+                selfLink.addParameter(Constants.PARAM_MAX_ITEMS, maxItems);
+                selfLink.addParameter(Constants.PARAM_SKIP_COUNT, skipCount);
+                feed.writeSelfLink(selfLink.toString(), null);
+
+                UrlBuilder pagingUrl = compileUrlBuilder(baseUrl, RESOURCE_CHECKEDOUT, folderInfo.getId());
+                pagingUrl.addParameter(Constants.PARAM_FILTER, filter);
+                pagingUrl.addParameter(Constants.PARAM_ORDER_BY, orderBy);
+                pagingUrl.addParameter(Constants.PARAM_ALLOWABLE_ACTIONS, includeAllowableActions);
+                pagingUrl.addParameter(Constants.PARAM_RELATIONSHIPS, includeRelationships);
+                pagingUrl.addParameter(Constants.PARAM_RENDITION_FILTER, renditionFilter);
+                feed.writePagingLinks(pagingUrl, maxItems, skipCount, checkedOut.getNumItems(), checkedOut.hasMoreItems(),
+                        PAGE_SIZE);
+
+                // write entries
+                if (checkedOut.getObjects() != null) {
+                    AtomEntry entry = new AtomEntry(feed.getWriter());
+                    for (ObjectData object : checkedOut.getObjects()) {
+                        if (object == null) {
+                            continue;
+                        }
+                        writeObjectEntry(service, entry, object, null, repositoryId, null, null, baseUrl, false,
+                                context.getCmisVersion());
+                    }
+                }
+
+                // write extensions
+                feed.writeExtensions(checkedOut);
+
+                // we are done
+                feed.endFeed();
+                feed.endDocument();
+            }
+        }
+    }
+