| /* |
| * 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.client.bindings.spi.atompub; |
| |
| import java.math.BigInteger; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.chemistry.opencmis.client.bindings.spi.BindingSession; |
| import org.apache.chemistry.opencmis.client.bindings.spi.atompub.objects.AtomBase; |
| import org.apache.chemistry.opencmis.client.bindings.spi.atompub.objects.AtomElement; |
| import org.apache.chemistry.opencmis.client.bindings.spi.atompub.objects.AtomEntry; |
| import org.apache.chemistry.opencmis.client.bindings.spi.atompub.objects.AtomFeed; |
| import org.apache.chemistry.opencmis.client.bindings.spi.atompub.objects.AtomLink; |
| import org.apache.chemistry.opencmis.client.bindings.spi.http.Response; |
| import org.apache.chemistry.opencmis.commons.data.ExtensionsData; |
| 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.CmisObjectNotFoundException; |
| 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.dataobjects.ObjectInFolderContainerImpl; |
| import org.apache.chemistry.opencmis.commons.impl.dataobjects.ObjectInFolderDataImpl; |
| import org.apache.chemistry.opencmis.commons.impl.dataobjects.ObjectInFolderListImpl; |
| import org.apache.chemistry.opencmis.commons.impl.dataobjects.ObjectListImpl; |
| import org.apache.chemistry.opencmis.commons.impl.dataobjects.ObjectParentDataImpl; |
| import org.apache.chemistry.opencmis.commons.spi.NavigationService; |
| |
| /** |
| * Navigation Service AtomPub client. |
| */ |
| public class NavigationServiceImpl extends AbstractAtomPubService implements NavigationService { |
| |
| /** |
| * Constructor. |
| */ |
| public NavigationServiceImpl(BindingSession session) { |
| setSession(session); |
| } |
| |
| public ObjectInFolderList getChildren(String repositoryId, String folderId, String filter, String orderBy, |
| Boolean includeAllowableActions, IncludeRelationships includeRelationships, String renditionFilter, |
| Boolean includePathSegment, BigInteger maxItems, BigInteger skipCount, ExtensionsData extension) { |
| ObjectInFolderListImpl result = new ObjectInFolderListImpl(); |
| |
| // find the link |
| String link = loadLink(repositoryId, folderId, Constants.REL_DOWN, Constants.MEDIATYPE_CHILDREN); |
| |
| if (link == null) { |
| throwLinkException(repositoryId, folderId, Constants.REL_DOWN, Constants.MEDIATYPE_CHILDREN); |
| } |
| |
| UrlBuilder url = new UrlBuilder(link); |
| url.addParameter(Constants.PARAM_FILTER, filter); |
| url.addParameter(Constants.PARAM_ORDER_BY, orderBy); |
| url.addParameter(Constants.PARAM_ALLOWABLE_ACTIONS, includeAllowableActions); |
| url.addParameter(Constants.PARAM_RELATIONSHIPS, includeRelationships); |
| url.addParameter(Constants.PARAM_RENDITION_FILTER, renditionFilter); |
| url.addParameter(Constants.PARAM_PATH_SEGMENT, includePathSegment); |
| url.addParameter(Constants.PARAM_MAX_ITEMS, maxItems); |
| url.addParameter(Constants.PARAM_SKIP_COUNT, skipCount); |
| |
| // read and parse |
| Response resp = read(url); |
| AtomFeed feed = parse(resp.getStream(), AtomFeed.class); |
| |
| // handle top level |
| for (AtomElement element : feed.getElements()) { |
| if (element.getObject() instanceof AtomLink) { |
| if (isNextLink(element)) { |
| result.setHasMoreItems(Boolean.TRUE); |
| } |
| } else if (isInt(NAME_NUM_ITEMS, element)) { |
| result.setNumItems((BigInteger) element.getObject()); |
| } |
| } |
| |
| // get the children |
| if (!feed.getEntries().isEmpty()) { |
| result.setObjects(new ArrayList<ObjectInFolderData>(feed.getEntries().size())); |
| |
| for (AtomEntry entry : feed.getEntries()) { |
| ObjectInFolderDataImpl child = null; |
| String pathSegment = null; |
| |
| lockLinks(); |
| try { |
| // clean up cache |
| removeLinks(repositoryId, entry.getId()); |
| |
| // walk through the entry |
| for (AtomElement element : entry.getElements()) { |
| if (element.getObject() instanceof AtomLink) { |
| addLink(repositoryId, entry.getId(), (AtomLink) element.getObject()); |
| } else if (isStr(NAME_PATH_SEGMENT, element)) { |
| pathSegment = (String) element.getObject(); |
| } else if (element.getObject() instanceof ObjectData) { |
| child = new ObjectInFolderDataImpl(); |
| child.setObject((ObjectData) element.getObject()); |
| } |
| } |
| } finally { |
| unlockLinks(); |
| } |
| |
| if (child != null) { |
| child.setPathSegment(pathSegment); |
| result.getObjects().add(child); |
| } |
| } |
| } |
| |
| return result; |
| } |
| |
| public List<ObjectInFolderContainer> getDescendants(String repositoryId, String folderId, BigInteger depth, |
| String filter, Boolean includeAllowableActions, IncludeRelationships includeRelationships, |
| String renditionFilter, Boolean includePathSegment, ExtensionsData extension) { |
| List<ObjectInFolderContainer> result = new ArrayList<ObjectInFolderContainer>(); |
| |
| // find the link |
| String link = loadLink(repositoryId, folderId, Constants.REL_DOWN, Constants.MEDIATYPE_DESCENDANTS); |
| |
| if (link == null) { |
| throwLinkException(repositoryId, folderId, Constants.REL_DOWN, Constants.MEDIATYPE_DESCENDANTS); |
| } |
| |
| UrlBuilder url = new UrlBuilder(link); |
| url.addParameter(Constants.PARAM_DEPTH, depth); |
| url.addParameter(Constants.PARAM_FILTER, filter); |
| url.addParameter(Constants.PARAM_ALLOWABLE_ACTIONS, includeAllowableActions); |
| url.addParameter(Constants.PARAM_RELATIONSHIPS, includeRelationships); |
| url.addParameter(Constants.PARAM_RENDITION_FILTER, renditionFilter); |
| url.addParameter(Constants.PARAM_PATH_SEGMENT, includePathSegment); |
| |
| // read and parse |
| Response resp = read(url); |
| AtomFeed feed = parse(resp.getStream(), AtomFeed.class); |
| |
| // process tree |
| addDescendantsLevel(repositoryId, feed, result); |
| |
| return result; |
| } |
| |
| public ObjectData getFolderParent(String repositoryId, String folderId, String filter, ExtensionsData extension) { |
| ObjectData result = null; |
| |
| // find the link |
| String link = loadLink(repositoryId, folderId, Constants.REL_UP, Constants.MEDIATYPE_ENTRY); |
| |
| if (link == null) { |
| throwLinkException(repositoryId, folderId, Constants.REL_UP, Constants.MEDIATYPE_ENTRY); |
| } |
| |
| UrlBuilder url = new UrlBuilder(link); |
| url.addParameter(Constants.PARAM_FILTER, filter); |
| |
| // read |
| Response resp = read(url); |
| |
| AtomBase base = parse(resp.getStream(), AtomBase.class); |
| |
| // get the entry |
| AtomEntry entry = null; |
| if (base instanceof AtomFeed) { |
| AtomFeed feed = (AtomFeed) base; |
| if (feed.getEntries().isEmpty()) { |
| throw new CmisRuntimeException("Parent feed is empty!"); |
| } |
| entry = feed.getEntries().get(0); |
| } else if (base instanceof AtomEntry) { |
| entry = (AtomEntry) base; |
| } else { |
| throw new CmisRuntimeException("Unexpected document!"); |
| } |
| |
| lockLinks(); |
| try { |
| // clean up cache |
| removeLinks(repositoryId, entry.getId()); |
| |
| // walk through the entry |
| for (AtomElement element : entry.getElements()) { |
| if (element.getObject() instanceof AtomLink) { |
| addLink(repositoryId, entry.getId(), (AtomLink) element.getObject()); |
| } else if (element.getObject() instanceof ObjectData) { |
| result = (ObjectData) element.getObject(); |
| } |
| } |
| } finally { |
| unlockLinks(); |
| } |
| |
| return result; |
| } |
| |
| public List<ObjectInFolderContainer> getFolderTree(String repositoryId, String folderId, BigInteger depth, |
| String filter, Boolean includeAllowableActions, IncludeRelationships includeRelationships, |
| String renditionFilter, Boolean includePathSegment, ExtensionsData extension) { |
| List<ObjectInFolderContainer> result = new ArrayList<ObjectInFolderContainer>(); |
| |
| // find the link |
| String link = loadLink(repositoryId, folderId, Constants.REL_FOLDERTREE, Constants.MEDIATYPE_DESCENDANTS); |
| |
| if (link == null) { |
| throwLinkException(repositoryId, folderId, Constants.REL_FOLDERTREE, Constants.MEDIATYPE_DESCENDANTS); |
| } |
| |
| UrlBuilder url = new UrlBuilder(link); |
| url.addParameter(Constants.PARAM_DEPTH, depth); |
| url.addParameter(Constants.PARAM_FILTER, filter); |
| url.addParameter(Constants.PARAM_ALLOWABLE_ACTIONS, includeAllowableActions); |
| url.addParameter(Constants.PARAM_RELATIONSHIPS, includeRelationships); |
| url.addParameter(Constants.PARAM_RENDITION_FILTER, renditionFilter); |
| url.addParameter(Constants.PARAM_PATH_SEGMENT, includePathSegment); |
| |
| // read and parse |
| Response resp = read(url); |
| AtomFeed feed = parse(resp.getStream(), AtomFeed.class); |
| |
| // process tree |
| addDescendantsLevel(repositoryId, feed, result); |
| |
| return result; |
| } |
| |
| public List<ObjectParentData> getObjectParents(String repositoryId, String objectId, String filter, |
| Boolean includeAllowableActions, IncludeRelationships includeRelationships, String renditionFilter, |
| Boolean includeRelativePathSegment, ExtensionsData extension) { |
| List<ObjectParentData> result = new ArrayList<ObjectParentData>(); |
| |
| // find the link |
| String link = loadLink(repositoryId, objectId, Constants.REL_UP, Constants.MEDIATYPE_FEED); |
| |
| if (link == null) { |
| // root and unfiled objects have no UP link |
| return result; |
| } |
| |
| UrlBuilder url = new UrlBuilder(link); |
| url.addParameter(Constants.PARAM_FILTER, filter); |
| url.addParameter(Constants.PARAM_ALLOWABLE_ACTIONS, includeAllowableActions); |
| url.addParameter(Constants.PARAM_RELATIONSHIPS, includeRelationships); |
| url.addParameter(Constants.PARAM_RENDITION_FILTER, renditionFilter); |
| url.addParameter(Constants.PARAM_RELATIVE_PATH_SEGMENT, includeRelativePathSegment); |
| |
| // read and parse |
| Response resp = read(url); |
| |
| AtomBase base = parse(resp.getStream(), AtomBase.class); |
| |
| if (base instanceof AtomFeed) { |
| // it's a feed |
| AtomFeed feed = (AtomFeed) base; |
| |
| // walk through the feed |
| for (AtomEntry entry : feed.getEntries()) { |
| ObjectParentDataImpl objectParent = processParentEntry(entry, repositoryId); |
| |
| if (objectParent != null) { |
| result.add(objectParent); |
| } |
| } |
| } else if (base instanceof AtomEntry) { |
| // it's an entry |
| AtomEntry entry = (AtomEntry) base; |
| |
| ObjectParentDataImpl objectParent = processParentEntry(entry, repositoryId); |
| |
| if (objectParent != null) { |
| result.add(objectParent); |
| } |
| } |
| |
| return result; |
| } |
| |
| private ObjectParentDataImpl processParentEntry(AtomEntry entry, String repositoryId) { |
| ObjectParentDataImpl result = null; |
| String relativePathSegment = null; |
| |
| lockLinks(); |
| try { |
| // clean up cache |
| removeLinks(repositoryId, entry.getId()); |
| |
| // walk through the entry |
| for (AtomElement element : entry.getElements()) { |
| if (element.getObject() instanceof AtomLink) { |
| addLink(repositoryId, entry.getId(), (AtomLink) element.getObject()); |
| } else if (element.getObject() instanceof ObjectData) { |
| result = new ObjectParentDataImpl((ObjectData) element.getObject()); |
| } else if (is(NAME_RELATIVE_PATH_SEGMENT, element)) { |
| relativePathSegment = (String) element.getObject(); |
| } |
| } |
| } finally { |
| unlockLinks(); |
| } |
| |
| if (result != null) { |
| result.setRelativePathSegment(relativePathSegment); |
| } |
| |
| return result; |
| } |
| |
| public ObjectList getCheckedOutDocs(String repositoryId, String folderId, String filter, String orderBy, |
| Boolean includeAllowableActions, IncludeRelationships includeRelationships, String renditionFilter, |
| BigInteger maxItems, BigInteger skipCount, ExtensionsData extension) { |
| ObjectListImpl result = new ObjectListImpl(); |
| |
| // find the link |
| String link = loadCollection(repositoryId, Constants.COLLECTION_CHECKEDOUT); |
| |
| if (link == null) { |
| throw new CmisObjectNotFoundException("Unknown repository or checkedout collection not supported!"); |
| } |
| |
| UrlBuilder url = new UrlBuilder(link); |
| url.addParameter(Constants.PARAM_FOLDER_ID, folderId); |
| url.addParameter(Constants.PARAM_FILTER, filter); |
| url.addParameter(Constants.PARAM_ORDER_BY, orderBy); |
| url.addParameter(Constants.PARAM_ALLOWABLE_ACTIONS, includeAllowableActions); |
| url.addParameter(Constants.PARAM_RELATIONSHIPS, includeRelationships); |
| url.addParameter(Constants.PARAM_RENDITION_FILTER, renditionFilter); |
| url.addParameter(Constants.PARAM_MAX_ITEMS, maxItems); |
| url.addParameter(Constants.PARAM_SKIP_COUNT, skipCount); |
| |
| // read and parse |
| Response resp = read(url); |
| AtomFeed feed = parse(resp.getStream(), AtomFeed.class); |
| |
| // handle top level |
| for (AtomElement element : feed.getElements()) { |
| if (element.getObject() instanceof AtomLink) { |
| if (isNextLink(element)) { |
| result.setHasMoreItems(Boolean.TRUE); |
| } |
| } else if (isInt(NAME_NUM_ITEMS, element)) { |
| result.setNumItems((BigInteger) element.getObject()); |
| } |
| } |
| |
| // get the documents |
| if (!feed.getEntries().isEmpty()) { |
| result.setObjects(new ArrayList<ObjectData>(feed.getEntries().size())); |
| |
| for (AtomEntry entry : feed.getEntries()) { |
| ObjectData child = null; |
| |
| lockLinks(); |
| try { |
| // clean up cache |
| removeLinks(repositoryId, entry.getId()); |
| |
| // walk through the entry |
| for (AtomElement element : entry.getElements()) { |
| if (element.getObject() instanceof AtomLink) { |
| addLink(repositoryId, entry.getId(), (AtomLink) element.getObject()); |
| } else if (element.getObject() instanceof ObjectData) { |
| child = (ObjectData) element.getObject(); |
| } |
| } |
| } finally { |
| unlockLinks(); |
| } |
| |
| if (child != null) { |
| result.getObjects().add(child); |
| } |
| } |
| } |
| |
| return result; |
| } |
| |
| // ---- internal ---- |
| |
| /** |
| * Adds descendants level recursively. |
| */ |
| private void addDescendantsLevel(String repositoryId, AtomFeed feed, List<ObjectInFolderContainer> containerList) { |
| if (feed == null || feed.getEntries().isEmpty()) { |
| return; |
| } |
| |
| // walk through the feed |
| for (AtomEntry entry : feed.getEntries()) { |
| ObjectInFolderDataImpl objectInFolder = null; |
| String pathSegment = null; |
| List<ObjectInFolderContainer> childContainerList = new ArrayList<ObjectInFolderContainer>(); |
| |
| lockLinks(); |
| try { |
| // clean up cache |
| removeLinks(repositoryId, entry.getId()); |
| |
| // walk through the entry |
| for (AtomElement element : entry.getElements()) { |
| if (element.getObject() instanceof AtomLink) { |
| addLink(repositoryId, entry.getId(), (AtomLink) element.getObject()); |
| } else if (element.getObject() instanceof ObjectData) { |
| objectInFolder = new ObjectInFolderDataImpl((ObjectData) element.getObject()); |
| } else if (is(NAME_PATH_SEGMENT, element)) { |
| pathSegment = (String) element.getObject(); |
| } else if (element.getObject() instanceof AtomFeed) { |
| addDescendantsLevel(repositoryId, (AtomFeed) element.getObject(), childContainerList); |
| } |
| } |
| } finally { |
| unlockLinks(); |
| } |
| |
| if (objectInFolder != null) { |
| objectInFolder.setPathSegment(pathSegment); |
| ObjectInFolderContainerImpl childContainer = new ObjectInFolderContainerImpl(objectInFolder); |
| childContainer.setChildren(childContainerList); |
| containerList.add(childContainer); |
| } |
| } |
| } |
| } |