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;
52 public class Folder extends Resource {
54 * The name of the folder. If the folder is a container this is its name. If it is a virtual folder this is the
55 * last part of its path
57 private String name = null;
59 private Date lastModified = null;
61 private long bytesUsed = 0;
63 private Folder parent = null;
65 private Set<Folder> subfolders = new LinkedHashSet<Folder>();
67 * The name of the container that this folder belongs to. If this folder is container, this field equals name
69 private String container = null;
72 * This is the full path of the folder (prefix is a misnomer but it was named so because this is used as a prefix=
73 * parameter in the request that fetches its children). If the folder is a cointainer this is empty string
75 private String prefix = "";
77 private Set<File> files = new LinkedHashSet<File>();
79 private boolean inTrash = false;
83 public Folder(String name) {
87 public String getName() {
91 public Date getLastModified() {
95 public long getBytesUsed() {
99 public void setLastModified(Date lastModified) {
100 this.lastModified = lastModified;
103 public Set<Folder> getSubfolders() {
107 public void setSubfolders(Set<Folder> subfolders) {
108 this.subfolders = subfolders;
111 public String getContainer() {
115 public String getPrefix() {
119 public void setPrefix(String prefix) {
120 this.prefix = prefix;
123 public void populate(Response response) {
124 String header = response.getHeader("Last-Modified");
126 lastModified = DateTimeFormat.getFormat(PredefinedFormat.RFC_2822).parse(header);
128 header = response.getHeader("X-Container-Bytes-Used");
130 bytesUsed = Long.valueOf(header);
132 header = response.getHeader("X-Object-Meta-Trash");
133 if (header != null && header.equals("true"))
136 subfolders.clear(); //This is necessary in case we update a pre-existing Folder so that stale subfolders won't show up
138 JSONValue json = JSONParser.parseStrict(response.getText());
139 JSONArray array = json.isArray();
141 for (int i=0; i<array.size(); i++) {
142 JSONObject o = array.get(i).isObject();
144 String contentType = unmarshallString(o, "content_type");
145 if (o.containsKey("subdir") || (contentType != null && (contentType.startsWith("application/directory") || contentType.startsWith("application/folder")))) {
146 Folder f = new Folder();
147 f.populate(this, o, container);
151 File file = new File();
152 file.populate(this, o, container);
157 Iterator<Folder> iter = subfolders.iterator();
158 while (iter.hasNext()) {
159 Folder f = iter.next();
163 Iterator<File> it = files.iterator();
164 while (it.hasNext()) {
172 public void populate(Folder parent, JSONObject o, String aContainer) {
173 this.parent = parent;
175 if (o.containsKey("subdir")) {
176 path = unmarshallString(o, "subdir");
179 path = unmarshallString(o, "name");
180 lastModified = unmarshallDate(o, "last_modified");
182 if (path.endsWith("/"))
183 path = path.substring(0, path.length() - 1);
184 if (path.contains("/"))
185 name = path.substring(path.lastIndexOf("/") + 1, path.length()); //strip the prefix
188 if (aContainer != null) {
189 container = aContainer;
196 if (o.containsKey("x_object_meta_trash") && o.get("x_object_meta_trash").isString().stringValue().equals("true"))
200 public static Folder createFromResponse(Response response, Folder result) {
207 f.populate(response);
212 public boolean equals(Object other) {
213 if (other instanceof Folder) {
214 Folder o = (Folder) other;
215 return (container + prefix).equals(o.getContainer() + o.getPrefix());
221 public int hashCode() {
222 return (container + prefix).hashCode();
225 public Set<File> getFiles() {
229 public Folder getParent() {
233 public String getUri() {
234 return "/" + container + (prefix.length() == 0 ? "" : "/" + prefix);
237 public boolean isInTrash() {