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.
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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>();
91 public Folder(String name) {
95 public String getName() {
99 public Date getLastModified() {
103 public long getBytesUsed() {
107 public void setLastModified(Date lastModified) {
108 this.lastModified = lastModified;
111 public Set<Folder> getSubfolders() {
115 public void setSubfolders(Set<Folder> subfolders) {
116 this.subfolders = subfolders;
119 public String getContainer() {
123 public String getPrefix() {
127 public void setPrefix(String prefix) {
128 this.prefix = prefix;
131 public void populate(Response response) {
132 String header = response.getHeader("Last-Modified");
134 lastModified = DateTimeFormat.getFormat(PredefinedFormat.RFC_2822).parse(header);
136 header = response.getHeader("X-Container-Bytes-Used");
138 bytesUsed = Long.valueOf(header);
140 header = response.getHeader("X-Object-Meta-Trash");
141 if (header != null && header.equals("true"))
144 header = response.getHeader("X-Container-Object-Meta");
145 if (header != null && header.length() > 2) {
146 String tagStr = header.substring(1, header.length() - 1);
147 while (tagStr.indexOf(",") > -1) {
148 String tag = tagStr.substring(2, tagStr.indexOf(",") - 1);
150 tagStr = tagStr.substring(tagStr.indexOf(",") + 1).trim();
152 tags.add(tagStr.substring(2, tagStr.length() - 1));
155 subfolders.clear(); //This is necessary in case we update a pre-existing Folder so that stale subfolders won't show up
157 JSONValue json = JSONParser.parseStrict(response.getText());
158 JSONArray array = json.isArray();
160 for (int i=0; i<array.size(); i++) {
161 JSONObject o = array.get(i).isObject();
163 String contentType = unmarshallString(o, "content_type");
164 if (o.containsKey("subdir") || (contentType != null && (contentType.startsWith("application/directory") || contentType.startsWith("application/folder")))) {
165 Folder f = new Folder();
166 f.populate(this, o, container);
169 else if (!(o.containsKey("x_object_meta_trash") && o.get("x_object_meta_trash").isString().stringValue().equals("true"))) {
170 File file = new File();
171 file.populate(this, o, container);
176 //This step is necessary to remove the trashed folders. Trashed folders are added initially because we need to
177 //avoid having in the list the virtual folders of the form {"subdir":"folder1"} which have no indication of thrash
178 Iterator<Folder> iter = subfolders.iterator();
179 while (iter.hasNext()) {
180 Folder f = iter.next();
187 public void populate(Folder parent, JSONObject o, String aContainer) {
188 this.parent = parent;
190 if (o.containsKey("subdir")) {
191 path = unmarshallString(o, "subdir");
194 path = unmarshallString(o, "name");
195 lastModified = unmarshallDate(o, "last_modified");
197 if (path.endsWith("/"))
198 path = path.substring(0, path.length() - 1);
199 if (path.contains("/"))
200 name = path.substring(path.lastIndexOf("/") + 1, path.length()); //strip the prefix
203 if (aContainer != null) {
204 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(Response response, Folder result) {
222 f.populate(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() {