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.Iterator;
48 import java.util.LinkedHashSet;
49 import java.util.List;
51 import java.util.StringTokenizer;
53 public class Folder extends Resource {
55 * The name of the folder. If the folder is a container this is its name. If it is a virtual folder this is the
56 * last part of its path
58 private String name = null;
60 private Date lastModified = null;
62 private long bytesUsed = 0;
64 private Folder parent = null;
66 private Set<Folder> subfolders = new LinkedHashSet<Folder>();
68 * The name of the container that this folder belongs to. If this folder is container, this field equals name
70 private String container = null;
73 * This is the full path of the folder (prefix is a misnomer but it was named so because this is used as a prefix=
74 * parameter in the request that fetches its children). If the folder is a cointainer this is empty string
76 private String prefix = "";
78 private Set<File> files = new LinkedHashSet<File>();
80 private boolean inTrash = false;
83 * Flag that indicates that this folder is the Trash
85 private boolean trash = false;
87 private Set<String> tags = new LinkedHashSet<String>();
93 public Folder(String name) {
97 public String getName() {
101 public Date getLastModified() {
105 public long getBytesUsed() {
109 public void setLastModified(Date lastModified) {
110 this.lastModified = lastModified;
113 public Set<Folder> getSubfolders() {
117 public void setSubfolders(Set<Folder> subfolders) {
118 this.subfolders = subfolders;
121 public String getContainer() {
125 public String getPrefix() {
129 public void setPrefix(String prefix) {
130 this.prefix = prefix;
133 public void populate(String owner, Response response) {
135 String header = response.getHeader("Last-Modified");
137 lastModified = DateTimeFormat.getFormat(PredefinedFormat.RFC_2822).parse(header);
139 header = response.getHeader("X-Container-Bytes-Used");
141 bytesUsed = Long.valueOf(header);
143 header = response.getHeader("X-Object-Meta-Trash");
144 if (header != null && header.equals("true"))
147 header = response.getHeader("X-Container-Object-Meta");
148 if (header != null && header.length() > 0) {
149 for (String t : header.split(",")) {
150 tags.add(t.toLowerCase().trim());
154 subfolders.clear(); //This is necessary in case we update a pre-existing Folder so that stale subfolders won't show up
156 JSONValue json = JSONParser.parseStrict(response.getText());
157 JSONArray array = json.isArray();
159 for (int i=0; i<array.size(); i++) {
160 JSONObject o = array.get(i).isObject();
162 String contentType = unmarshallString(o, "content_type");
163 if (o.containsKey("subdir") || (contentType != null && (contentType.startsWith("application/directory") || contentType.startsWith("application/folder")))) {
164 Folder f = new Folder();
165 f.populate(this, o, owner, container);
168 else if (!(o.containsKey("x_object_meta_trash") && o.get("x_object_meta_trash").isString().stringValue().equals("true"))) {
169 File file = new File();
170 file.populate(this, o, owner, container);
175 //This step is necessary to remove the trashed folders. Trashed folders are added initially because we need to
176 //avoid having in the list the virtual folders of the form {"subdir":"folder1"} which have no indication of thrash
177 Iterator<Folder> iter = subfolders.iterator();
178 while (iter.hasNext()) {
179 Folder f = iter.next();
186 public void populate(Folder parent, JSONObject o, String owner, String aContainer) {
187 this.parent = parent;
189 if (o.containsKey("subdir")) {
190 path = unmarshallString(o, "subdir");
193 path = unmarshallString(o, "name");
194 lastModified = unmarshallDate(o, "last_modified");
196 if (path.endsWith("/"))
197 path = path.substring(0, path.length() - 1);
198 if (path.contains("/"))
199 name = path.substring(path.lastIndexOf("/") + 1, path.length()); //strip the prefix
202 if (aContainer != null) {
203 container = aContainer;
211 if (o.containsKey("x_object_meta_trash") && o.get("x_object_meta_trash").isString().stringValue().equals("true"))
215 public static Folder createFromResponse(String owner, Response response, Folder result) {
222 f.populate(owner, response);
227 public boolean equals(Object other) {
228 if (other instanceof Folder) {
229 Folder o = (Folder) other;
230 return (container + prefix).equals(o.getContainer() + o.getPrefix());
236 public int hashCode() {
237 return (container + prefix).hashCode();
240 public Set<File> getFiles() {
244 public Folder getParent() {
248 public String getUri() {
249 return "/" + container + (prefix.length() == 0 ? "" : "/" + prefix);
252 public boolean isInTrash() {
256 public boolean isContainer() {
257 return parent == null;
260 public boolean isTrash() {
264 public void setTrash(boolean trash) {
268 public void setContainer(String container) {
269 this.container = container;
272 public Set<String> getTags() {