2 * jSite2 - ProjectManager.java -
3 * Copyright © 2008 David Roden
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 package net.pterodactylus.jsite.project;
23 import java.io.FileInputStream;
24 import java.io.FileOutputStream;
25 import java.io.IOException;
26 import java.io.InputStream;
27 import java.io.OutputStream;
28 import java.util.ArrayList;
29 import java.util.Collections;
30 import java.util.List;
31 import java.util.Properties;
32 import java.util.Random;
33 import java.util.logging.Logger;
35 import net.pterodactylus.jsite.core.JSiteException;
36 import net.pterodactylus.jsite.core.NodeManager;
37 import net.pterodactylus.util.io.Closer;
38 import net.pterodactylus.util.logging.Logging;
39 import net.pterodactylus.util.number.Hex;
42 * Manages projects, taking care of persistence, lifetime statistics, and other
45 * @author David ‘Bombe’ Roden <bombe@freenetproject.org>
48 public class ProjectManager {
51 private static final Logger logger = Logging.getLogger(ProjectManager.class.getName());
53 /** The RNG used to create project IDs. */
54 private static final Random random = new Random();
56 /** The directory the projects are stored in. */
57 private final String directory;
59 /** The node manager. */
60 private NodeManager nodeManager;
63 private final List<Project> projects = Collections.synchronizedList(new ArrayList<Project>());
66 * Creates a new project manager that saves and restores its state to/from
67 * the given directory.
70 * The directory to save and restore states to/from
72 public ProjectManager(String directory) {
73 this.directory = directory;
81 * Returns the directory the projects are loaded from and saved to.
83 * @return The directory for storing the projects
85 public String getDirectory() {
90 * Returns a list of all projects.
92 * @return A list of all projects
94 public List<Project> getProjects() {
95 return Collections.unmodifiableList(new ArrayList<Project>(projects));
99 * Sets the node manager to use.
102 * The node manager to use
104 public void setNodeManager(NodeManager nodeManager) {
105 this.nodeManager = nodeManager;
113 * Loads projects and statistics.
115 * @throws IOException
116 * if an I/O error occurs
118 public void load() throws IOException {
119 File directoryFile = new File(directory);
120 File projectFile = new File(directoryFile, "projects.properties");
121 if (!projectFile.exists() || !projectFile.isFile() || !projectFile.canRead()) {
124 Properties projectProperties = new Properties();
125 InputStream projectInputStream = null;
127 projectInputStream = new FileInputStream(projectFile);
128 projectProperties.load(projectInputStream);
130 Closer.close(projectInputStream);
132 int projectIndex = 0;
133 while (projectProperties.containsKey("projects." + projectIndex + ".name")) {
134 String projectPrefix = "projects." + projectIndex;
135 String projectId = projectProperties.getProperty(projectPrefix + ".id");
136 String projectName = projectProperties.getProperty(projectPrefix + ".name");
137 String projectDescription = projectProperties.getProperty(projectPrefix + ".description");
138 String projectPrivateKey = projectProperties.getProperty(projectPrefix + ".privateKey");
139 String projectPublicKey = projectProperties.getProperty(projectPrefix + ".publicKey");
140 Project project = new Project();
141 project.setId(projectId);
142 project.setName(projectName);
143 project.setDescription(projectDescription);
144 project.setPrivateKey(projectPrivateKey);
145 project.setPublicKey(projectPublicKey);
146 projects.add(project);
147 logger.fine("loaded project “" + project.getName() + "”.");
153 * Saves projects and statistics.
155 * @throws IOException
156 * if an I/O error occurs
158 public void save() throws IOException {
159 File directoryFile = new File(directory);
160 if (!directoryFile.exists()) {
161 if (!directoryFile.mkdirs()) {
162 throw new IOException("could not create directory: " + directory);
165 Properties projectProperties = new Properties();
166 int projectIndex = 0;
167 for (Project project: projects) {
168 String projectPrefix = "projects." + projectIndex;
169 projectProperties.setProperty(projectPrefix + ".id", project.getId());
170 projectProperties.setProperty(projectPrefix + ".name", project.getName());
171 projectProperties.setProperty(projectPrefix + ".description", project.getDescription());
172 projectProperties.setProperty(projectPrefix + ".privateKey", project.getPrivateKey());
173 projectProperties.setProperty(projectPrefix + ".publicKey", project.getPublicKey());
176 File projectFile = new File(directoryFile, "projects.properties");
177 OutputStream projectOutputStream = null;
179 projectOutputStream = new FileOutputStream(projectFile);
180 projectProperties.store(projectOutputStream, "jSite projects");
182 Closer.close(projectOutputStream);
187 * Creates a new project. The returned {@link Project} will contain a newly
188 * generated key pair.
190 * @return A newly created project
191 * @throws IOException
192 * if an I/O error occured communicating with the node
193 * @throws JSiteException
194 * if there is a problem with the node
196 public Project createProject() throws IOException, JSiteException {
197 Project project = new Project();
198 String[] keyPair = nodeManager.generateKeyPair();
199 byte[] idBytes = new byte[16];
200 random.nextBytes(idBytes);
201 project.setId(Hex.toHex(idBytes));
202 project.setPrivateKey(keyPair[0]);
203 project.setPublicKey(keyPair[1]);
204 projects.add(project);