--- /dev/null
+/*
+ * jSite2 - ProjectManager.java -
+ * Copyright © 2008 David Roden
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+package net.pterodactylus.jsite.core.project;
+
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Properties;
+import java.util.Random;
+import java.util.Map.Entry;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import net.pterodactylus.jsite.core.JSiteException;
+import net.pterodactylus.jsite.core.NodeManager;
+import net.pterodactylus.util.io.Closer;
+import net.pterodactylus.util.logging.Logging;
+import net.pterodactylus.util.number.Hex;
+
+/**
+ * Manages projects, taking care of persistence, lifetime statistics, and other
+ * things.
+ *
+ * @author David ‘Bombe’ Roden <bombe@freenetproject.org>
+ */
+public class ProjectManager implements PropertyChangeListener {
+
+ /** Logger. */
+ private static final Logger logger = Logging.getLogger(ProjectManager.class.getName());
+
+ /** The RNG used to create project IDs. */
+ private static final Random random = new Random();
+
+ /** The directory the projects are stored in. */
+ private final String directory;
+
+ /** The node manager. */
+ private NodeManager nodeManager;
+
+ /** All projects. */
+ private final List<Project> projects = Collections.synchronizedList(new ArrayList<Project>());
+
+ /**
+ * Creates a new project manager that saves and restores its state to/from
+ * the given directory.
+ *
+ * @param directory
+ * The directory to save and restore states to/from
+ */
+ public ProjectManager(String directory) {
+ this.directory = directory;
+ }
+
+ //
+ // ACCESSORS
+ //
+
+ /**
+ * Returns the directory the projects are loaded from and saved to.
+ *
+ * @return The directory for storing the projects
+ */
+ public String getDirectory() {
+ return directory;
+ }
+
+ /**
+ * Returns a list of all projects.
+ *
+ * @return A list of all projects
+ */
+ public List<Project> getProjects() {
+ return Collections.unmodifiableList(new ArrayList<Project>(projects));
+ }
+
+ /**
+ * Sets the node manager to use.
+ *
+ * @param nodeManager
+ * The node manager to use
+ */
+ public void setNodeManager(NodeManager nodeManager) {
+ this.nodeManager = nodeManager;
+ }
+
+ //
+ // ACTIONS
+ //
+
+ /**
+ * Loads projects and statistics.
+ *
+ * @throws IOException
+ * if an I/O error occurs
+ */
+ public void load() throws IOException {
+ File directoryFile = new File(directory);
+ File projectFile = new File(directoryFile, "projects.properties");
+ if (!projectFile.exists() || !projectFile.isFile() || !projectFile.canRead()) {
+ return;
+ }
+ Properties projectProperties = new Properties();
+ InputStream projectInputStream = null;
+ try {
+ projectInputStream = new FileInputStream(projectFile);
+ projectProperties.load(projectInputStream);
+ } finally {
+ Closer.close(projectInputStream);
+ }
+ int projectIndex = 0;
+ while (projectProperties.containsKey("projects." + projectIndex + ".name")) {
+ String projectPrefix = "projects." + projectIndex;
+ String projectId = projectProperties.getProperty(projectPrefix + ".id");
+ String projectName = projectProperties.getProperty(projectPrefix + ".name");
+ String projectDescription = projectProperties.getProperty(projectPrefix + ".description");
+ String projectPrivateKey = projectProperties.getProperty(projectPrefix + ".privateKey");
+ String projectPublicKey = projectProperties.getProperty(projectPrefix + ".publicKey");
+ String projectBasePath = projectProperties.getProperty(projectPrefix + ".basePath");
+ String projectDefaultFile = projectProperties.getProperty(projectPrefix + ".defaultFile");
+ Project project = new Project();
+ project.setId(projectId);
+ project.setName(projectName);
+ project.setDescription(projectDescription);
+ project.setPrivateKey(projectPrivateKey);
+ project.setPublicKey(projectPublicKey);
+ project.setBasePath(projectBasePath);
+ project.setDefaultFile(projectDefaultFile);
+ int overrideIndex = 0;
+ while (projectProperties.containsKey(projectPrefix + ".overrides." + overrideIndex + ".override")) {
+ String filePath = projectProperties.getProperty(projectPrefix + ".overrides." + overrideIndex + ".filePath");
+ FileOverride override = FileOverride.valueOf(projectProperties.getProperty(projectPrefix + ".overrides." + overrideIndex + ".override"));
+ project.addFileOverride(filePath, override);
+ logger.log(Level.FINEST, "read override: " + filePath + ", " + override);
+ overrideIndex++;
+ }
+ projects.add(project);
+ logger.fine("loaded project “" + project.getName() + "”.");
+ projectIndex++;
+ }
+ }
+
+ /**
+ * Saves projects and statistics.
+ *
+ * @throws IOException
+ * if an I/O error occurs
+ */
+ public void save() throws IOException {
+ File directoryFile = new File(directory);
+ if (!directoryFile.exists()) {
+ if (!directoryFile.mkdirs()) {
+ throw new IOException("could not create directory: " + directory);
+ }
+ }
+ Properties projectProperties = new Properties();
+ int projectIndex = 0;
+ for (Project project : projects) {
+ String projectPrefix = "projects." + projectIndex;
+ projectProperties.setProperty(projectPrefix + ".id", project.getId());
+ projectProperties.setProperty(projectPrefix + ".name", project.getName());
+ projectProperties.setProperty(projectPrefix + ".description", project.getDescription());
+ projectProperties.setProperty(projectPrefix + ".privateKey", project.getPrivateKey());
+ projectProperties.setProperty(projectPrefix + ".publicKey", project.getPublicKey());
+ projectProperties.setProperty(projectPrefix + ".basePath", project.getBasePath());
+ projectProperties.setProperty(projectPrefix + ".defaultFile", project.getDefaultFile());
+ int overrideIndex = 0;
+ for (Entry<String, FileOverride> overrideEntry : project.getFileOverrides().entrySet()) {
+ projectProperties.setProperty(projectPrefix + ".overrides." + overrideIndex + ".filePath", overrideEntry.getKey());
+ projectProperties.setProperty(projectPrefix + ".overrides." + overrideIndex + ".override", overrideEntry.getValue().toString());
+ overrideIndex++;
+ }
+ projectIndex++;
+ }
+ File projectFile = new File(directoryFile, "projects.properties");
+ OutputStream projectOutputStream = null;
+ try {
+ projectOutputStream = new FileOutputStream(projectFile);
+ projectProperties.store(projectOutputStream, "jSite projects");
+ } finally {
+ Closer.close(projectOutputStream);
+ }
+ }
+
+ /**
+ * Creates a new project. The returned {@link Project} will contain a newly
+ * generated key pair.
+ *
+ * @return A newly created project
+ * @throws IOException
+ * if an I/O error occured communicating with the node
+ * @throws JSiteException
+ * if there is a problem with the node
+ */
+ public Project createProject() throws IOException, JSiteException {
+ Project project = new Project();
+ String[] keyPair = nodeManager.generateKeyPair();
+ project.setId(generateId());
+ project.setName("");
+ project.setDescription("");
+ project.setPrivateKey(keyPair[0]);
+ project.setPublicKey(keyPair[1]);
+ project.setBasePath("");
+ project.setDefaultFile("");
+ projects.add(project);
+ project.addPropertyChangeListener(this);
+ try {
+ save();
+ } catch (IOException ioe1) {
+ /* ignore. */
+ }
+ return project;
+ }
+
+ /**
+ * Clones the given project and returns the clone. The clone will be
+ * identical in all user-exposed fields, except for the project’s
+ * {@link Project#getId ID}.
+ *
+ * @param project
+ * The project to clone
+ * @return The cloned project
+ */
+ public Project cloneProject(Project project) {
+ Project projectClone = new Project(project);
+ projects.add(projectClone);
+ projectClone.setId(generateId());
+ projectClone.addPropertyChangeListener(this);
+ try {
+ save();
+ } catch (IOException ioe1) {
+ /* ignore. */
+ }
+ return projectClone;
+ }
+
+ /**
+ * Removes the given project.
+ *
+ * @param project
+ * The project to remove
+ */
+ public void removeProject(Project project) {
+ projects.remove(project);
+ try {
+ save();
+ } catch (IOException ioe1) {
+ /* ignore. */
+ }
+ }
+
+ //
+ // PRIVATE METHODS
+ //
+
+ /**
+ * Generates a new random ID, consisting of 16 random bytes converted to a
+ * hexadecimal number.
+ *
+ * @return The new ID
+ */
+ private static String generateId() {
+ byte[] idBytes = new byte[16];
+ random.nextBytes(idBytes);
+ return Hex.toHex(idBytes);
+ }
+
+ //
+ // INTERFACE PropertyChangeListener
+ //
+
+ /**
+ * {@inheritDoc}
+ */
+ public void propertyChange(PropertyChangeEvent propertyChangeEvent) {
+ try {
+ save();
+ } catch (IOException ioe1) {
+ /* ignore. */
+ }
+ }
+
+}
projects / jSite2.git / blobdiff