package net.pterodactylus.sone.core;
+import java.net.MalformedURLException;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.UUID;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import net.pterodactylus.sone.core.SoneException.Type;
+import net.pterodactylus.sone.data.Sone;
+import net.pterodactylus.util.config.Configuration;
+import net.pterodactylus.util.config.ConfigurationException;
+import net.pterodactylus.util.logging.Logging;
import net.pterodactylus.util.service.AbstractService;
+import net.pterodactylus.util.text.StringEscaper;
+import net.pterodactylus.util.text.TextException;
+import freenet.keys.FreenetURI;
/**
* The Sone core.
*/
public class Core extends AbstractService {
+ /** The logger. */
+ private static final Logger logger = Logging.getLogger(Core.class);
+
+ /** The configuration. */
+ private Configuration configuration;
+
+ /** Interface to freenet. */
+ private FreenetInterface freenetInterface;
+
+ /** The local Sones. */
+ private final Set<Sone> localSones = new HashSet<Sone>();
+
+ /** Sone inserters. */
+ private final Map<Sone, SoneInserter> soneInserters = new HashMap<Sone, SoneInserter>();
+
/**
* Creates a new core.
*/
super("Sone Core");
}
+ //
+ // ACCESSORS
+ //
+
+ /**
+ * Sets the configuration of the core.
+ *
+ * @param configuration
+ * The configuration of the core
+ * @return This core (for method chaining)
+ */
+ public Core configuration(Configuration configuration) {
+ this.configuration = configuration;
+ return this;
+ }
+
+ /**
+ * Sets the Freenet interface to use.
+ *
+ * @param freenetInterface
+ * The Freenet interface to use
+ * @return This core (for method chaining)
+ */
+ public Core freenetInterface(FreenetInterface freenetInterface) {
+ this.freenetInterface = freenetInterface;
+ return this;
+ }
+
+ /**
+ * Returns the local Sones.
+ *
+ * @return The local Sones
+ */
+ public Set<Sone> getSones() {
+ return Collections.unmodifiableSet(localSones);
+ }
+
+ //
+ // ACTIONS
+ //
+
+ /**
+ * Adds the given Sone.
+ *
+ * @param sone
+ * The Sone to add
+ */
+ public void addSone(Sone sone) {
+ if (localSones.add(sone)) {
+ SoneInserter soneInserter = new SoneInserter(freenetInterface, sone);
+ soneInserter.start();
+ soneInserters.put(sone, soneInserter);
+ }
+ }
+
+ /**
+ * Creates a new Sone at a random location.
+ *
+ * @param name
+ * The name of the Sone
+ * @return The created Sone
+ * @throws SoneException
+ * if a Sone error occurs
+ */
+ public Sone createSone(String name) throws SoneException {
+ return createSone(name, null, null);
+ }
+
+ /**
+ * Creates a new Sone at the given location. If one of {@code requestUri} or
+ * {@code insertUrI} is {@code null}, the Sone is created at a random
+ * location.
+ *
+ * @param name
+ * The name of the Sone
+ * @param requestUri
+ * The request URI of the Sone, or {@link NullPointerException}
+ * to create a Sone at a random location
+ * @param insertUri
+ * The insert URI of the Sone, or {@code null} to create a Sone
+ * at a random location
+ * @return The created Sone
+ * @throws SoneException
+ * if a Sone error occurs
+ */
+ public Sone createSone(String name, String requestUri, String insertUri) throws SoneException {
+ if ((name == null) || (name.trim().length() == 0)) {
+ throw new SoneException(Type.INVALID_SONE_NAME);
+ }
+ String finalRequestUri;
+ String finalInsertUri;
+ if ((requestUri == null) || (insertUri == null)) {
+ String[] keyPair = freenetInterface.generateKeyPair();
+ finalRequestUri = keyPair[0];
+ finalInsertUri = keyPair[1];
+ } else {
+ finalRequestUri = requestUri;
+ finalInsertUri = insertUri;
+ }
+ Sone sone;
+ try {
+ logger.log(Level.FINEST, "Creating new Sone “%s” at %s (%s)…", new Object[] { name, finalRequestUri, finalInsertUri });
+ sone = new Sone(UUID.randomUUID(), name, new FreenetURI(finalRequestUri), new FreenetURI(finalInsertUri));
+ /* set modification counter to 1 so it is inserted immediately. */
+ sone.setModificationCounter(1);
+ addSone(sone);
+ } catch (MalformedURLException mue1) {
+ throw new SoneException(Type.INVALID_URI);
+ }
+ localSones.add(sone);
+ return sone;
+ }
+
+ /**
+ * Deletes the given Sone from this plugin instance.
+ *
+ * @param sone
+ * The sone to delete
+ */
+ public void deleteSone(Sone sone) {
+ SoneInserter soneInserter = soneInserters.remove(sone);
+ soneInserter.stop();
+ localSones.remove(sone);
+ }
+
+ //
+ // SERVICE METHODS
+ //
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ protected void serviceStart() {
+ loadConfiguration();
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ protected void serviceStop() {
+ /* stop all Sone inserters. */
+ for (SoneInserter soneInserter : soneInserters.values()) {
+ soneInserter.stop();
+ }
+ saveConfiguration();
+ }
+
+ //
+ // PRIVATE METHODS
+ //
+
+ /**
+ * Loads the configuration.
+ */
+ private void loadConfiguration() {
+ logger.entering(Core.class.getName(), "loadConfiguration()");
+
+ /* get names of all local Sones. */
+ String allSoneNamesString = configuration.getStringValue("Sone/Names").getValue(null);
+ if (allSoneNamesString == null) {
+ allSoneNamesString = "";
+ }
+ List<String> allSoneNames;
+ try {
+ allSoneNames = StringEscaper.parseLine(allSoneNamesString);
+ } catch (TextException te1) {
+ logger.log(Level.WARNING, "Could not parse Sone names: “" + allSoneNamesString + "”", te1);
+ allSoneNames = Collections.emptyList();
+ }
+
+ /* parse local Sones. */
+ logger.log(Level.INFO, "Loading %d Sones…", allSoneNames.size());
+ for (String soneName : allSoneNames) {
+ String id = configuration.getStringValue("Sone/Name." + soneName + "/ID").getValue(null);
+ String insertUri = configuration.getStringValue("Sone/Name." + soneName + "/InsertURI").getValue(null);
+ String requestUri = configuration.getStringValue("Sone/Name." + soneName + "/RequestURI").getValue(null);
+ long modificationCounter = configuration.getLongValue("Sone/Name." + soneName + "/ModificationCounter").getValue((long) 0);
+ try {
+ Sone sone = new Sone(UUID.fromString(id), soneName, new FreenetURI(requestUri), new FreenetURI(insertUri));
+ sone.setModificationCounter(modificationCounter);
+ addSone(sone);
+ } catch (MalformedURLException mue1) {
+ logger.log(Level.WARNING, "Could not create Sone from requestUri (“" + requestUri + "”) and insertUri (“" + insertUri + "”)!", mue1);
+ }
+ }
+
+ logger.exiting(Core.class.getName(), "loadConfiguration()");
+ }
+
+ /**
+ * Saves the configuraiton.
+ */
+ private void saveConfiguration() {
+
+ /* get the names of all Sones. */
+ Set<String> soneNames = new HashSet<String>();
+ for (Sone sone : localSones) {
+ soneNames.add(sone.getName());
+ }
+ String soneNamesString = StringEscaper.escapeWords(soneNames);
+
+ logger.log(Level.INFO, "Storing %d Sones…", soneNames.size());
+ try {
+ /* store names of all Sones. */
+ configuration.getStringValue("Sone/Names").setValue(soneNamesString);
+
+ /* store all Sones. */
+ for (Sone sone : localSones) {
+ configuration.getStringValue("Sone/Name." + sone.getName() + "/ID").setValue(sone.getId());
+ configuration.getStringValue("Sone/Name." + sone.getName() + "/RequestURI").setValue(sone.getRequestUri().toString());
+ configuration.getStringValue("Sone/Name." + sone.getName() + "/InsertURI").setValue(sone.getInsertUri().toString());
+ configuration.getLongValue("Sone/Name." + sone.getName() + "/ModificationCounter").setValue(sone.getModificationCounter());
+ }
+ } catch (ConfigurationException ce1) {
+ logger.log(Level.WARNING, "Could not store configuration!", ce1);
+ }
+ }
+
}
projects / Sone.git / blobdiff