Synnefo » Pithos Web Client

/*

 * Copyright 2011 GRNET S.A. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or

 * without modification, are permitted provided that the following

 * conditions are met:

 *

 *   1. Redistributions of source code must retain the above

 *      copyright notice, this list of conditions and the following

 *      disclaimer.

 *

 *   2. Redistributions in binary form must reproduce the above

 *      copyright notice, this list of conditions and the following

 *      disclaimer in the documentation and/or other materials

 *      provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS

 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF

 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED

 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN

 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 * POSSIBILITY OF SUCH DAMAGE.

 *

 * The views and conclusions contained in the software and

 * documentation are those of the authors and should not be

 * interpreted as representing official policies, either expressed

 * or implied, of GRNET S.A.

 */

package gr.grnet.pithos.web.client.rest.resource;

import gr.grnet.pithos.web.client.DisplayHelper;

import gr.grnet.pithos.web.client.GSS;

import gr.grnet.pithos.web.client.rest.MultipleGetCommand;

import gr.grnet.pithos.web.client.rest.MultipleGetCommand.Cached;

import java.util.ArrayList;

import java.util.Date;

import java.util.HashSet;

import java.util.LinkedList;

import java.util.List;

import java.util.Set;

import com.google.gwt.core.client.GWT;

import com.google.gwt.http.client.URL;

import com.google.gwt.json.client.JSONArray;

import com.google.gwt.json.client.JSONObject;

import com.google.gwt.json.client.JSONParser;

import com.google.gwt.user.client.ui.TreeItem;

public class FolderResource extends RestResource {

        public FolderResource(String aUri) {

                super(aUri);

        }

        String name;

        String owner;

        String createdBy;

        String modifiedBy;

        Date creationDate;

        Date modificationDate;

        List<String> filePaths = new LinkedList<String>();

        List<String> subfolderPaths = new LinkedList<String>();

        Set<PermissionHolder> permissions = new HashSet<PermissionHolder>();

        List<FolderResource> folders = new ArrayList<FolderResource>();

        List<FileResource> files = new ArrayList<FileResource>();

        String parentURI;

        boolean deleted = false;

        boolean needsExpanding = false;

        String parentName;

        private boolean filesExpanded=false;

        boolean readForAll;

        Boolean shared;

        /**

         * Modify the shared.

         *

         * @param shared the shared to set

         */

        public void setShared(Boolean shared) {

                this.shared = shared;

        }

        /**

         * Modify the parentName.

         *

         * @param aParentName the parentName to set

         */

        public void setParentName(String aParentName) {

                parentName = aParentName;

        }

        /**

         * Retrieve the name.

         *

         * @return the name

         */

        @Override

        public String getName() {

                return name;

        }

        /**

         * Modify the name.

         *

         * @param aName the name to set

         */

        public void setName(String aName) {

                name = aName;

        }

        /**

         * Retrieve the owner.

         *

         * @return the owner

         */

        public String getOwner() {

                return owner;

        }

        /**

         * Modify the owner.

         *

         * @param anOwner the owner to set

         */

        public void setOwner(String anOwner) {

                owner = anOwner;

        }

        /**

         * Retrieve the createdBy.

         *

         * @return the createdBy

         */

        public String getCreatedBy() {

                return createdBy;

        }

        /**

         * Modify the createdBy.

         *

         * @param aCreatedBy the createdBy to set

         */

        public void setCreatedBy(String aCreatedBy) {

                createdBy = aCreatedBy;

        }

        /**

         * Retrieve the modifiedBy.

         *

         * @return the modifiedBy

         */

        public String getModifiedBy() {

                return modifiedBy;

        }

        /**

         * Modify the modifiedBy.

         *

         * @param aModifiedBy the modifiedBy to set

         */

        public void setModifiedBy(String aModifiedBy) {

                modifiedBy = aModifiedBy;

        }

        /**

         * Retrieve the creationDate.

         *

         * @return the creationDate

         */

        public Date getCreationDate() {

                return creationDate;

        }

        /**

         * Modify the creationDate.

         *

         * @param aCreationDate the creationDate to set

         */

        public void setCreationDate(Date aCreationDate) {

                creationDate = aCreationDate;

        }

        /**

         * Retrieve the modificationDate.

         *

         * @return the modificationDate

         */

        public Date getModificationDate() {

                return modificationDate;

        }

        /**

         * Modify the modificationDate.

         *

         * @param aModificationDate the modificationDate to set

         */

        public void setModificationDate(Date aModificationDate) {

                modificationDate = aModificationDate;

        }

        /**

         * Retrieve the filePaths.

         *

         * @return the filePaths

         */

        public List<String> getFilePaths() {

                return filePaths;

        }

        /**

         * Modify the filePaths.

         *

         * @param newFilePaths the filePaths to set

         */

        public void setFilePaths(List<String> newFilePaths) {

                filePaths = newFilePaths;

        }

        /**

         * Retrieve the subfolderPaths.

         *

         * @return the subfolderPaths

         */

        public List<String> getSubfolderPaths() {

                return subfolderPaths;

        }

        /**

         * Modify the subfolderPaths.

         *

         * @param newSubfolderPaths the subfolderPaths to set

         */

        public void setSubfolderPaths(List<String> newSubfolderPaths) {

                subfolderPaths = newSubfolderPaths;

        }

        /**

         * Retrieve the permissions.

         *

         * @return the permissions

         */

        public Set<PermissionHolder> getPermissions() {

                return permissions;

        }

        /**

         * Modify the permissions.

         *

         * @param newPermissions the permissions to set

         */

        public void setPermissions(Set<PermissionHolder> newPermissions) {

                permissions = newPermissions;

        }

        /**

         * Retrieve the deleted.

         *

         * @return the deleted

         */

        public boolean isDeleted() {

                return deleted;

        }

        /**

         * Modify the deleted.

         *

         * @param newDeleted the deleted to set

         */

        public void setDeleted(boolean newDeleted) {

                deleted = newDeleted;

        }

        public void removeSubfolderPath(String spath) {

                if (subfolderPaths.remove(spath))

                        return;

                else if (subfolderPaths.remove(spath + "/"))

                        return;

                else

                        subfolderPaths.remove(spath.substring(0, spath.length() - 1));

        }

        /**

         * Retrieve the folders.

         *

         * @return the folders

         */

        public List<FolderResource> getFolders() {

                return folders;

        }

        /**

         * Modify the folders.

         *

         * @param newFolders the folders to set

         */

        public void setFolders(List<FolderResource> newFolders) {

                folders = newFolders;

        }

        /**

         * Retrieve the files.

         *

         * @return the files

         */

        public List<FileResource> getFiles() {

                return files;

        }

        /**

         * Modify the files.

         *

         * @param newFiles the files to set

         */

        public void setFiles(List<FileResource> newFiles) {

                files = newFiles;

        }

        /**

         * Retrieve the parentURI.

         *

         * @return the parentURI

         */

        public String getParentURI() {

                return parentURI;

        }

        /**

         * Modify the parentURI.

         *

         * @param aParentURI the parentURI to set

         */

        public void setParentURI(String aParentURI) {

                parentURI = aParentURI;

        }

        @Override

        public void createFromJSON(String text) {

                JSONObject json = (JSONObject) JSONParser.parse(text);

                name = unmarshallString(json, "name");

                owner = unmarshallString(json, "owner");

                createdBy = unmarshallString(json, "createdBy");

                modifiedBy = unmarshallString(json, "modifiedBy");

                deleted = unmarshallBoolean(json, "deleted");

                shared = unmarshallBoolean(json, "shared");

                readForAll = unmarshallBoolean(json, "readForAll");

                if (deleted)

                        GWT.log("FOUND A DELETED FOLDER:" + name, null);

                if (json.get("parent") != null) {

                        JSONObject parent = json.get("parent").isObject();

                        parentURI = unmarshallString(parent, "uri");

                        parentName = unmarshallString(parent, "name");

                }

                if (json.get("permissions") != null) {

                        JSONArray perm = json.get("permissions").isArray();

                        if (perm != null)

                                for (int i = 0; i < perm.size(); i++) {

                                        JSONObject obj = perm.get(i).isObject();

                                        if (obj != null) {

                                                PermissionHolder permission = new PermissionHolder();

                                                if (obj.get("user") != null)

                                                        permission.setUser(unmarshallString(obj, "user"));

                                                if (obj.get("group") != null)

                                                        permission.setGroup(URL.decodeComponent(unmarshallString(obj, "group")));

                                                permission.setRead(unmarshallBoolean(obj, "read"));

                                                permission.setWrite(unmarshallBoolean(obj, "write"));

                                                permission.setModifyACL(unmarshallBoolean(obj, "modifyACL"));

                                                permissions.add(permission);

                                        }

                                }

                }

                if (json.get("folders") != null) {

                        JSONArray subs = json.get("folders").isArray();

                        if (subs != null)

                                for (int i = 0; i < subs.size(); i++) {

                                        JSONObject so = subs.get(i).isObject();

                                        if (so != null) {

                                                String subUri = unmarshallString(so, "uri");

                                                String subName = unmarshallString(so, "name");

                                                if (subUri != null && subName != null) {

                                                        if (!subUri.endsWith("/"))

                                                                subUri = subUri + "/";

                                                        FolderResource sub = new FolderResource(subUri);

                                                        sub.setName(subName);

                                                        sub.setParentURI(uri);

                                                        sub.setParentName(name);

                                                        sub.setNeedsExpanding(true);

                                                        folders.add(sub);

                                                        subfolderPaths.add(subUri);

                                                }

                                        }

                                }

                }

                if (json.get("files") != null) {

                        JSONArray subs = json.get("files").isArray();

                        if (subs != null)

                                for (int i = 0; i < subs.size(); i++) {

                                        JSONObject fo = subs.get(i).isObject();

                                        if (fo != null) {

                                                String fname = unmarshallString(fo, "name");

                                                String fowner = unmarshallString(fo, "owner");

                                                String fcontent = unmarshallString(fo, "content");

                                                String fpath = unmarshallString(fo, "path");

                                                Boolean fshared = unmarshallBoolean(fo, "shared");

                                                fpath = URL.decodeComponent(fpath);

                                                Integer fversion = null;

                                                if (fo.get("version") != null)

                                                        fversion = new Integer(fo.get("version").toString());

                                                boolean fdeleted = unmarshallBoolean(fo, "deleted");

                                                Date fcreationDate = null;

                                                if (fo.get("creationDate") != null)

                                                        fcreationDate = new Date(new Long(fo.get("creationDate").toString()));

                                                Date fmodificationDate = null;

                                                if (fo.get("modificationDate") != null)

                                                        fmodificationDate = new Date(new Long(fo.get("modificationDate").toString()));

                                                String furi = unmarshallString(fo, "uri");

                                                Long fsize = 0L;

                                                if (fo.get("size") != null)

                                                        fsize = new Long(fo.get("size").toString());

                                                filePaths.add(furi);

                                                FileResource fs = new FileResource(furi);

                                                fs.setName(fname);

                                                fs.setOwner(fowner);

                                                fs.setPath(fpath);

                                                fs.setVersioned(unmarshallBoolean(fo, "versioned"));

                                                fs.setVersion(fversion);

                                                fs.setContentLength(fsize);

                                                fs.setDeleted(fdeleted);

                                                fs.setShared(fshared);

                                                fs.setCreationDate(fcreationDate);

                                                fs.setModificationDate(fmodificationDate);

                                                fs.setContentType(fcontent);

                                                files.add(fs);

                                        }

                                }

                }

                if (json.get("creationDate") != null)

                        creationDate = new Date(new Long(json.get("creationDate").toString()));

                if (json.get("modificationDate") != null)

                        modificationDate = new Date(new Long(json.get("modificationDate").toString()));

        }

        public String getParentName(){

                return parentName;

        }

        /**

         * Retrieve the needsExpanding.

         *

         * @return the needsExpanding

         */

        public boolean isNeedsExpanding() {

                return needsExpanding;

        }

        /**

         * Modify the needsExpanding.

         *

         * @param newNeedsExpanding the needsExpanding to set

         */

        public void setNeedsExpanding(boolean newNeedsExpanding) {

                needsExpanding = newNeedsExpanding;

        }

        public boolean isShared(){

                return shared;

        }

        @Override

        public String getLastModifiedSince() {

                if(modificationDate != null)

                        return getDate(modificationDate.getTime());

                return null;

        }

        public MultipleGetCommand.Cached[] getCache(){

                if(getSubfolderPaths().size() != getFolders().size()){

                        GWT.log("MISMATCH IN PATH AND FOLDERS SIZE", null);

                        return null;

                }

                MultipleGetCommand.Cached[] result = new MultipleGetCommand.Cached[getSubfolderPaths().size()];

                for(int i=0; i<getFolders().size();i++){

                        FolderResource r = getFolders().get(i);

                        Cached c = new Cached();

                        c.cache=r;

                        c.uri=r.uri;

                        result[i] = c;

                }

                return result;

        }

        public MultipleGetCommand.Cached[] getFileCache(){

                if(getFilePaths().size() != getFiles().size()){

                        GWT.log("MISMATCH IN PATH AND FILES SIZE", null);

                        return null;

                }

                if(!filesExpanded)

                        return null;

                MultipleGetCommand.Cached[] result = new MultipleGetCommand.Cached[getFilePaths().size()];

                for(int i=0; i<getFiles().size();i++){

                        FileResource r = getFiles().get(i);

                        Cached c = new Cached();

                        c.cache=r;

                        c.uri=r.uri;

                        result[i] = c;

                }

                return result;

        }

        public void setFilesExpanded(boolean newFilesExpanded) {

                filesExpanded = newFilesExpanded;

        }

        /**

         * this method constructs the partial path of a given TreeItem using it's text

         *

         * @param selectedItem the selectedItem to check

         */

        private String constructPartialPath(TreeItem selectedItem){

           String result = DisplayHelper.trim(selectedItem.getText());

           TreeItem parent = selectedItem.getParentItem();

           while (!(DisplayHelper.trim(parent.getText()).equals("My Shared") || DisplayHelper.trim(parent.getText()).equals("Other's Shared")||DisplayHelper.trim(parent.getText()).equals("Trash"))){

              result = DisplayHelper.trim(parent.getText()) + "/" + result;

              if(result.equals("My Shared")||result.equals("Other's Shared")) return result;

              parent = parent.getParentItem();

           }

           return result;

        }

        /**

         * examine whether a folder name like "Trash", "My Shared", "Other's Shared" is inside path

         *

         * @param selectedItem the selectedTreeItem to check

         */

        private boolean containsFolder(TreeItem selectedItem, String folderName){

                TreeItem parent = selectedItem.getParentItem();

                while (parent != null){

                        String parentItemText = parent.getText();

                        String parentItemTextTr = DisplayHelper.trim(parentItemText);

                        if(parentItemTextTr.equals(folderName)) return true;

                        parent = parent.getParentItem();

                        }

                return false;

        }

        @Override

        public String constructUri(TreeItem treeItem, String path){

                String constructedUri = "";

                if(containsFolder(treeItem, "My Shared")){

                        //case: selected folders below My Shared folder

                        String partialUri = constructPartialPath(treeItem);

                        constructedUri = constructedUri + "Files/shared/" + partialUri;

                        return constructedUri;

                }else if(containsFolder(treeItem, "Other's Shared")){

                        //case: selected folders below Other's Shared folder

                        String partialPath = constructPartialPath(treeItem);

                        constructedUri = constructedUri + "Files/others/"+ partialPath;

                        return constructedUri;

                }

                else if(getParentURI()==null){

                        if(containsFolder(treeItem, "Trash")){

                                //case: selected folders below Trash folder

                                String partialUri = constructPartialPath(treeItem);

                                constructedUri = constructedUri + "Files/trash/" + partialUri;

                                return constructedUri;

                        }

                        //case: home folder is selected

                        constructedUri = constructedUri + "Files/files/" + getName();

                        return constructedUri;

                }

                else if(treeItem.getParentItem() == null){

                        //this is the case when the user uses the browser's forward arrow to navigate through other's

                        //shared folders and item.getParentItem is null only inside other's shared folder

                        String apiPath = GSS.get().getApiPath();

                        String newPath = getParentURI().substring(apiPath.lastIndexOf("/"));

                        constructedUri = constructedUri + "Files"+ newPath + getName();

                        return constructedUri;

                }

                else{

                        String finalUri = getParentURI().substring(path.lastIndexOf("/")) + getName();

                        constructedUri = constructedUri + "Files"+ finalUri;

                        return constructedUri;

                }

        }

        /**

         * Retrieve the readForAll.

         *

         * @return the readForAll

         */

        public boolean isReadForAll() {

                return readForAll;

        }

        /**

         * Modify the readForAll.

         *

         * @param newReadForAll the readForAll to set

         */

        public void setReadForAll(boolean newReadForAll) {

                readForAll = newReadForAll;

        }

        public int countNotDeletedSubfolders(){

                int count=0;

                for(FolderResource r : folders){

                        if(!r.isDeleted())

                                count++;

                }

                return count;

        }

}