2 * Copyright 2011 GRNET S.A. All rights reserved.
4 * Redistribution and use in source and binary forms, with or
5 * without modification, are permitted provided that the following
8 * 1. Redistributions of source code must retain the above
9 * copyright notice, this list of conditions and the following
12 * 2. Redistributions in binary form must reproduce the above
13 * copyright notice, this list of conditions and the following
14 * disclaimer in the documentation and/or other materials
15 * provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
18 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
21 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
24 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
27 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
30 * The views and conclusions contained in the software and
31 * documentation are those of the authors and should not be
32 * interpreted as representing official policies, either expressed
33 * or implied, of GRNET S.A.
36 package gr.grnet.pithos.web.client.foldertree;
38 import com.google.gwt.http.client.Response;
39 import com.google.gwt.i18n.client.DateTimeFormat;
40 import com.google.gwt.i18n.client.DateTimeFormat.PredefinedFormat;
41 import com.google.gwt.json.client.JSONArray;
42 import com.google.gwt.json.client.JSONObject;
43 import com.google.gwt.json.client.JSONParser;
44 import com.google.gwt.json.client.JSONValue;
45 import java.util.ArrayList;
46 import java.util.Date;
47 import java.util.HashMap;
48 import java.util.Iterator;
49 import java.util.LinkedHashSet;
50 import java.util.List;
53 import java.util.StringTokenizer;
55 public class Folder extends Resource {
57 * The name of the folder. If the folder is a container this is its name. If it is a virtual folder this is the
58 * last part of its path
60 private String name = null;
62 private Date lastModified = null;
64 private long bytesUsed = 0;
66 private Folder parent = null;
68 private Set<Folder> subfolders = new LinkedHashSet<Folder>();
70 * The name of the container that this folder belongs to. If this folder is container, this field equals name
72 private String container = null;
75 * This is the full path of the folder (prefix is a misnomer but it was named so because this is used as a prefix=
76 * parameter in the request that fetches its children). If the folder is a cointainer this is empty string
78 private String prefix = "";
80 private Set<File> files = new LinkedHashSet<File>();
82 private boolean inTrash = false;
85 * Flag that indicates that this folder is the Trash
87 private boolean trash = false;
89 private Set<String> tags = new LinkedHashSet<String>();
93 private Map<String, Boolean[]> permissions = new HashMap<String, Boolean[]>();
95 private String inheritedPermissionsFrom;
99 public Folder(String name) {
103 public String getName() {
107 public Date getLastModified() {
111 public long getBytesUsed() {
115 public void setLastModified(Date lastModified) {
116 this.lastModified = lastModified;
119 public Set<Folder> getSubfolders() {
123 public void setSubfolders(Set<Folder> subfolders) {
124 this.subfolders = subfolders;
127 public String getContainer() {
131 public String getPrefix() {
135 public void setPrefix(String prefix) {
136 this.prefix = prefix;
139 private void parsePermissions(String rawPermissions) {
140 String[] readwrite = rawPermissions.split(";");
141 for (String s : readwrite) {
142 String[] part = s.split("=");
143 String perm = part[0].trim();
144 String[] users = part[1].split(",");
145 for (String u : users) {
146 String user = u.trim();
147 Boolean[] userPerm = permissions.get(u);
148 if (userPerm == null) {
149 userPerm = new Boolean[2];
150 permissions.put(user, userPerm);
152 if (perm.equals("read")) {
153 userPerm[0] = Boolean.TRUE;
155 else if (perm.equals("write")) {
156 userPerm[1] = Boolean.TRUE;
162 public void populate(String owner, Response response) {
164 String header = response.getHeader("Last-Modified");
166 lastModified = DateTimeFormat.getFormat(PredefinedFormat.RFC_2822).parse(header);
168 header = response.getHeader("X-Container-Bytes-Used");
170 bytesUsed = Long.valueOf(header);
172 header = response.getHeader("X-Object-Meta-Trash");
173 if (header != null && header.equals("true"))
176 header = response.getHeader("X-Container-Object-Meta");
177 if (header != null && header.length() > 0) {
178 for (String t : header.split(",")) {
179 tags.add(t.toLowerCase().trim());
183 inheritedPermissionsFrom = response.getHeader("X-Object-Shared-By");
184 String rawPermissions = response.getHeader("X-Object-Sharing");
185 if (rawPermissions != null)
186 parsePermissions(rawPermissions);
188 subfolders.clear(); //This is necessary in case we update a pre-existing Folder so that stale subfolders won't show up
190 JSONValue json = JSONParser.parseStrict(response.getText());
191 JSONArray array = json.isArray();
193 for (int i=0; i<array.size(); i++) {
194 JSONObject o = array.get(i).isObject();
196 String contentType = unmarshallString(o, "content_type");
197 if (o.containsKey("subdir") || (contentType != null && (contentType.startsWith("application/directory") || contentType.startsWith("application/folder")))) {
198 Folder f = new Folder();
199 f.populate(this, o, owner, container);
202 else if (!(o.containsKey("x_object_meta_trash") && o.get("x_object_meta_trash").isString().stringValue().equals("true"))) {
203 File file = new File();
204 file.populate(this, o, owner, container);
209 //This step is necessary to remove the trashed folders. Trashed folders are added initially because we need to
210 //avoid having in the list the virtual folders of the form {"subdir":"folder1"} which have no indication of thrash
211 Iterator<Folder> iter = subfolders.iterator();
212 while (iter.hasNext()) {
213 Folder f = iter.next();
220 public void populate(Folder parent, JSONObject o, String owner, String aContainer) {
221 this.parent = parent;
223 if (o.containsKey("subdir")) {
224 path = unmarshallString(o, "subdir");
227 path = unmarshallString(o, "name");
228 lastModified = unmarshallDate(o, "last_modified");
230 if (path.endsWith("/"))
231 path = path.substring(0, path.length() - 1);
232 if (path.contains("/"))
233 name = path.substring(path.lastIndexOf("/") + 1, path.length()); //strip the prefix
236 if (aContainer != null) {
237 container = aContainer;
245 if (o.containsKey("x_object_meta_trash") && o.get("x_object_meta_trash").isString().stringValue().equals("true"))
248 inheritedPermissionsFrom = unmarshallString(o, "x_object_shared_by");
249 String rawPermissions = unmarshallString(o, "x_object_sharing");
250 if (rawPermissions != null)
251 parsePermissions(rawPermissions);
254 public static Folder createFromResponse(String owner, Response response, Folder result) {
261 f.populate(owner, response);
266 public boolean equals(Object other) {
267 if (other instanceof Folder) {
268 Folder o = (Folder) other;
269 return (container + prefix).equals(o.getContainer() + o.getPrefix());
275 public int hashCode() {
276 return (container + prefix).hashCode();
279 public Set<File> getFiles() {
283 public Folder getParent() {
287 public String getUri() {
288 return "/" + container + (prefix.length() == 0 ? "" : "/" + prefix);
291 public boolean isInTrash() {
295 public boolean isContainer() {
296 return parent == null;
299 public boolean isTrash() {
303 public void setTrash(boolean trash) {
307 public void setContainer(String container) {
308 this.container = container;
311 public Set<String> getTags() {