Package org.apache.chemistry.opencmis.client.runtime

Source Code of org.apache.chemistry.opencmis.client.runtime.PersistentFolderImpl

/*
* 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.runtime;

import java.math.BigInteger;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.apache.chemistry.opencmis.client.api.CmisObject;
import org.apache.chemistry.opencmis.client.api.Document;
import org.apache.chemistry.opencmis.client.api.FileableCmisObject;
import org.apache.chemistry.opencmis.client.api.Folder;
import org.apache.chemistry.opencmis.client.api.ObjectFactory;
import org.apache.chemistry.opencmis.client.api.ObjectId;
import org.apache.chemistry.opencmis.client.api.ObjectType;
import org.apache.chemistry.opencmis.client.api.OperationContext;
import org.apache.chemistry.opencmis.client.api.ItemIterable;
import org.apache.chemistry.opencmis.client.api.Policy;
import org.apache.chemistry.opencmis.client.api.Tree;
import org.apache.chemistry.opencmis.client.runtime.util.AbstractPageFetch;
import org.apache.chemistry.opencmis.client.runtime.util.CollectionIterable;
import org.apache.chemistry.opencmis.client.runtime.util.TreeImpl;
import org.apache.chemistry.opencmis.commons.PropertyIds;
import org.apache.chemistry.opencmis.commons.data.Ace;
import org.apache.chemistry.opencmis.commons.data.ContentStream;
import org.apache.chemistry.opencmis.commons.data.FailedToDeleteData;
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.PropertyData;
import org.apache.chemistry.opencmis.commons.data.PropertyString;
import org.apache.chemistry.opencmis.commons.enums.BaseTypeId;
import org.apache.chemistry.opencmis.commons.enums.IncludeRelationships;
import org.apache.chemistry.opencmis.commons.enums.UnfileObject;
import org.apache.chemistry.opencmis.commons.enums.Updatability;
import org.apache.chemistry.opencmis.commons.enums.VersioningState;
import org.apache.chemistry.opencmis.commons.exceptions.CmisRuntimeException;
import org.apache.chemistry.opencmis.commons.spi.NavigationService;

public class PersistentFolderImpl extends AbstractPersistentFilableCmisObject implements Folder {

    private static final Set<Updatability> CREATE_UPDATABILITY = new HashSet<Updatability>();
    static {
        CREATE_UPDATABILITY.add(Updatability.ONCREATE);
        CREATE_UPDATABILITY.add(Updatability.READWRITE);
    }

    /**
     * Constructor.
     */
    public PersistentFolderImpl(PersistentSessionImpl session, ObjectType objectType, ObjectData objectData,
            OperationContext context) {
        initialize(session, objectType, objectData, context);
    }

    public Document createDocument(Map<String, ?> properties, ContentStream contentStream,
            VersioningState versioningState, List<Policy> policies, List<Ace> addAces, List<Ace> removeAces,
            OperationContext context) {
        if ((properties == null) || (properties.isEmpty())) {
            throw new IllegalArgumentException("Properties must not be empty!");
        }

        String objectId = getObjectId();

        ObjectFactory of = getObjectFactory();

        String newId = getBinding().getObjectService().createDocument(getRepositoryId(),
                of.convertProperties(properties, null, CREATE_UPDATABILITY), objectId,
                of.convertContentStream(contentStream), versioningState, of.convertPolicies(policies),
                of.convertAces(addAces), of.convertAces(removeAces), null);

        // if no context is provided the object will not be fetched
        if ((context == null) || (newId == null)) {
            return null;
        }

        // get the new object
        CmisObject object = getSession().getObject(getSession().createObjectId(newId), context);
        if (!(object instanceof Document)) {
            throw new CmisRuntimeException("Newly created object is not a document! New id: " + newId);
        }

        return (Document) object;
    }

    public Document createDocumentFromSource(ObjectId source, Map<String, ?> properties,
            VersioningState versioningState, List<Policy> policies, List<Ace> addAces, List<Ace> removeAces,
            OperationContext context) {
        if ((source == null) || (source.getId() == null)) {
            throw new IllegalArgumentException("Source must be set!");
        }

        String objectId = getObjectId();

        // get the type of the source document
        ObjectType type = null;
        if (source instanceof CmisObject) {
            type = ((CmisObject) source).getBaseType();
        } else {
            CmisObject sourceObj = getSession().getObject(source);
            type = sourceObj.getType();
        }

        if (type.getBaseTypeId() != BaseTypeId.CMIS_DOCUMENT) {
            throw new IllegalArgumentException("Source object must be a document!");
        }

        ObjectFactory of = getObjectFactory();

        Set<Updatability> updatebility = new HashSet<Updatability>();
        updatebility.add(Updatability.READWRITE);

        String newId = getBinding().getObjectService().createDocumentFromSource(getRepositoryId(), source.getId(),
                of.convertProperties(properties, type, updatebility), objectId, versioningState,
                of.convertPolicies(policies), of.convertAces(addAces), of.convertAces(removeAces), null);

        // if no context is provided the object will not be fetched
        if ((context == null) || (newId == null)) {
            return null;
        }

        // get the new object
        CmisObject object = getSession().getObject(getSession().createObjectId(newId), context);
        if (!(object instanceof Document)) {
            throw new CmisRuntimeException("Newly created object is not a document! New id: " + newId);
        }

        return (Document) object;
    }

    public Folder createFolder(Map<String, ?> properties, List<Policy> policies, List<Ace> addAces,
            List<Ace> removeAces, OperationContext context) {
        if ((properties == null) || (properties.isEmpty())) {
            throw new IllegalArgumentException("Properties must not be empty!");
        }

        String objectId = getObjectId();

        ObjectFactory of = getObjectFactory();

        String newId = getBinding().getObjectService().createFolder(getRepositoryId(),
                of.convertProperties(properties, null, CREATE_UPDATABILITY), objectId, of.convertPolicies(policies),
                of.convertAces(addAces), of.convertAces(removeAces), null);

        // if no context is provided the object will not be fetched
        if ((context == null) || (newId == null)) {
            return null;
        }

        // get the new object
        CmisObject object = getSession().getObject(getSession().createObjectId(newId), context);
        if (!(object instanceof Folder)) {
            throw new CmisRuntimeException("Newly created object is not a folder! New id: " + newId);
        }

        return (Folder) object;
    }

    public Policy createPolicy(Map<String, ?> properties, List<Policy> policies, List<Ace> addAces,
            List<Ace> removeAces, OperationContext context) {
        if ((properties == null) || (properties.isEmpty())) {
            throw new IllegalArgumentException("Properties must not be empty!");
        }

        String objectId = getObjectId();

        ObjectFactory of = getObjectFactory();

        String newId = getBinding().getObjectService().createPolicy(getRepositoryId(),
                of.convertProperties(properties, null, CREATE_UPDATABILITY), objectId, of.convertPolicies(policies),
                of.convertAces(addAces), of.convertAces(removeAces), null);

        // if no context is provided the object will not be fetched
        if ((context == null) || (newId == null)) {
            return null;
        }

        // get the new object
        CmisObject object = getSession().getObject(getSession().createObjectId(newId), context);
        if (!(object instanceof Policy)) {
            throw new CmisRuntimeException("Newly created object is not a policy! New id: " + newId);
        }

        return (Policy) object;
    }

    public List<String> deleteTree(boolean allVersions, UnfileObject unfile, boolean continueOnFailure) {
        String repositoryId = getRepositoryId();
        String objectId = getObjectId();

        FailedToDeleteData failed = getBinding().getObjectService().deleteTree(repositoryId, objectId, allVersions,
                unfile, continueOnFailure, null);

        return failed.getIds();
    }

    public List<ObjectType> getAllowedChildObjectTypes() {
        List<ObjectType> result = new ArrayList<ObjectType>();

        readLock();
        try {
            List<String> otids = getPropertyMultivalue(PropertyIds.ALLOWED_CHILD_OBJECT_TYPE_IDS);
            if (otids == null) {
                return result;
            }

            for (String otid : otids) {
                result.add(getSession().getTypeDefinition(otid));
            }
        } finally {
            readUnlock();
        }

        return result;
    }

    public ItemIterable<Document> getCheckedOutDocs() {
        return getCheckedOutDocs(getSession().getDefaultContext());
    }

    public ItemIterable<Document> getCheckedOutDocs(OperationContext context) {
        final String objectId = getObjectId();
        final NavigationService navigationService = getBinding().getNavigationService();
        final ObjectFactory objectFactory = getSession().getObjectFactory();
        final OperationContext ctxt = new OperationContextImpl(context);

        return new CollectionIterable<Document>(new AbstractPageFetch<Document>(ctxt.getMaxItemsPerPage()) {

            @Override
            protected AbstractPageFetch.PageFetchResult<Document> fetchPage(long skipCount) {

                // get checked out documents for this folder
                ObjectList checkedOutDocs = navigationService.getCheckedOutDocs(getRepositoryId(), objectId, ctxt
                        .getFilterString(), ctxt.getOrderBy(), ctxt.isIncludeAllowableActions(), ctxt
                        .getIncludeRelationships(), ctxt.getRenditionFilterString(), BigInteger
                        .valueOf(this.maxNumItems), BigInteger.valueOf(skipCount), null);

                // convert objects
                List<Document> page = new ArrayList<Document>();
                if (checkedOutDocs.getObjects() != null) {
                    for (ObjectData objectData : checkedOutDocs.getObjects()) {
                        CmisObject doc = objectFactory.convertObject(objectData, ctxt);
                        if (!(doc instanceof Document)) {
                            // should not happen...
                            continue;
                        }

                        page.add((Document) doc);
                    }
                }

                return new AbstractPageFetch.PageFetchResult<Document>(page, checkedOutDocs.getNumItems(),
                        checkedOutDocs.hasMoreItems());
            }
        });
    }

    public ItemIterable<CmisObject> getChildren() {
        return getChildren(getSession().getDefaultContext());
    }

    public ItemIterable<CmisObject> getChildren(OperationContext context) {
        final String objectId = getObjectId();
        final NavigationService navigationService = getBinding().getNavigationService();
        final ObjectFactory objectFactory = getSession().getObjectFactory();
        final OperationContext ctxt = new OperationContextImpl(context);

        return new CollectionIterable<CmisObject>(new AbstractPageFetch<CmisObject>(ctxt.getMaxItemsPerPage()) {

            @Override
            protected AbstractPageFetch.PageFetchResult<CmisObject> fetchPage(long skipCount) {

                // get the children
                ObjectInFolderList children = navigationService.getChildren(getRepositoryId(), objectId, ctxt
                        .getFilterString(), ctxt.getOrderBy(), ctxt.isIncludeAllowableActions(), ctxt
                        .getIncludeRelationships(), ctxt.getRenditionFilterString(), ctxt.isIncludePathSegments(),
                        BigInteger.valueOf(this.maxNumItems), BigInteger.valueOf(skipCount), null);

                // convert objects
                List<CmisObject> page = new ArrayList<CmisObject>();
                List<ObjectInFolderData> childObjects = children.getObjects();
                if (childObjects != null) {
                    for (ObjectInFolderData objectData : childObjects) {
                        if (objectData.getObject() != null) {
                            page.add(objectFactory.convertObject(objectData.getObject(), ctxt));
                        }
                    }
                }

                return new AbstractPageFetch.PageFetchResult<CmisObject>(page, children.getNumItems(), children
                        .hasMoreItems());
            }
        });
    }

    public List<Tree<FileableCmisObject>> getDescendants(int depth) {
        return getDescendants(depth, getSession().getDefaultContext());
    }

    public List<Tree<FileableCmisObject>> getDescendants(int depth, OperationContext context) {
        String objectId = getObjectId();

        // get the descendants
        List<ObjectInFolderContainer> providerContainerList = getBinding().getNavigationService().getDescendants(
                getRepositoryId(), objectId, BigInteger.valueOf(depth), context.getFilterString(),
                context.isIncludeAllowableActions(), context.getIncludeRelationships(),
                context.getRenditionFilterString(), context.isIncludePathSegments(), null);

        return convertProviderContainer(providerContainerList, context);
    }

    public List<Tree<FileableCmisObject>> getFolderTree(int depth) {
        return getFolderTree(depth, getSession().getDefaultContext());
    }

    public List<Tree<FileableCmisObject>> getFolderTree(int depth, OperationContext context) {
        String objectId = getObjectId();

        // get the folder tree
        List<ObjectInFolderContainer> providerContainerList = getBinding().getNavigationService().getFolderTree(
                getRepositoryId(), objectId, BigInteger.valueOf(depth), context.getFilterString(),
                context.isIncludeAllowableActions(), context.getIncludeRelationships(),
                context.getRenditionFilterString(), context.isIncludePathSegments(), null);

        return convertProviderContainer(providerContainerList, context);
    }

    /**
     * Converts a provider container into an API container.
     */
    private List<Tree<FileableCmisObject>> convertProviderContainer(
            List<ObjectInFolderContainer> providerContainerList, OperationContext context) {
        if (providerContainerList == null) {
            return null;
        }

        ObjectFactory of = getSession().getObjectFactory();

        List<Tree<FileableCmisObject>> result = new ArrayList<Tree<FileableCmisObject>>();
        for (ObjectInFolderContainer oifc : providerContainerList) {
            if ((oifc.getObject() == null) || (oifc.getObject().getObject() == null)) {
                // shouldn't happen ...
                continue;
            }

            // convert the object
            CmisObject object = of.convertObject(oifc.getObject().getObject(), context);
            if (!(object instanceof FileableCmisObject)) {
                // the repository must not return objects that are not fileable,
                // but you never know...
                continue;
            }

            // convert the children
            List<Tree<FileableCmisObject>> children = convertProviderContainer(oifc.getChildren(), context);

            // add both to current container
            result.add(new TreeImpl<FileableCmisObject>((FileableCmisObject) object, children));
        }

        return result;
    }

    public boolean isRootFolder() {
        String objectId = getObjectId();
        String rootFolderId = getSession().getRepositoryInfo().getRootFolderId();

        return objectId.equals(rootFolderId);
    }

    public Folder getFolderParent() {
        if (isRootFolder()) {
            return null;
        }

        List<Folder> parents = super.getParents();
        if ((parents == null) || (parents.isEmpty())) {
            return null;
        }

        return parents.get(0);
    }

    public String getPath() {
        String path;

        readLock();
        try {
            // get the path property
            path = getPropertyValue(PropertyIds.PATH);

            // if the path property isn't set, get it
            if (path == null) {
                String objectId = getObjectId();
                ObjectData objectData = getBinding().getObjectService().getObject(getRepositoryId(), objectId,
                        getPropertyQueryName(PropertyIds.PATH), false, IncludeRelationships.NONE, "cmis:none", false,
                        false, null);

                if ((objectData.getProperties() != null) && (objectData.getProperties().getProperties() != null)) {
                    PropertyData<?> pathProperty = objectData.getProperties().getProperties().get(PropertyIds.PATH);

                    if (pathProperty instanceof PropertyString) {
                        path = ((PropertyString) pathProperty).getFirstValue();
                    }
                }
            }
        } finally {
            readUnlock();
        }

        // we still don't know the path ... it's not a CMIS compliant repository
        if (path == null) {
            throw new CmisRuntimeException("Repository didn't return " + PropertyIds.PATH + "!");
        }

        return path;
    }

    @Override
    public List<String> getPaths() {
        return Collections.singletonList(getPath());
    }
}
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