import net.pterodactylus.sone.freenet.wot.WebOfTrustException;
import net.pterodactylus.util.logging.Logging;
import net.pterodactylus.util.service.AbstractService;
+import net.pterodactylus.util.validation.Validation;
/**
* Updates WebOfTrust identity data in a background thread because communicating
/** Stop job. */
@SuppressWarnings("synthetic-access")
- private static final WebOfTrustUpdateJob stopJob = new WebOfTrustUpdateJob();
+ private final WebOfTrustUpdateJob stopJob = new WebOfTrustUpdateJob();
/** The web of trust connector. */
private final WebOfTrustConnector webOfTrustConnector;
}
}
+ /**
+ * Adds the given context to the given own identity.
+ *
+ * @param ownIdentity
+ * The own identity to add the context to
+ * @param context
+ * The context to add
+ */
+ public void addContext(OwnIdentity ownIdentity, String context) {
+ addContextWait(ownIdentity, context, false);
+ }
+
+ /**
+ * Adds the given context to the given own identity, waiting for completion
+ * of the operation.
+ *
+ * @param ownIdentity
+ * The own identity to add the context to
+ * @param context
+ * The context to add
+ * @return {@code true} if the context was added successfully, {@code false}
+ * otherwise
+ */
+ public boolean addContextWait(OwnIdentity ownIdentity, String context) {
+ return addContextWait(ownIdentity, context, true);
+ }
+
+ /**
+ * Adds the given context to the given own identity, waiting for completion
+ * of the operation.
+ *
+ * @param ownIdentity
+ * The own identity to add the context to
+ * @param context
+ * The context to add
+ * @param wait
+ * {@code true} to wait for the end of the operation,
+ * {@code false} to return immediately
+ * @return {@code true} if the context was added successfully, {@code false}
+ * if the context was not added successfully, or if the job should
+ * not wait for completion
+ */
+ private boolean addContextWait(OwnIdentity ownIdentity, String context, boolean wait) {
+ AddContextJob addContextJob = new AddContextJob(ownIdentity, context);
+ if (!updateJobs.contains(addContextJob)) {
+ logger.log(Level.FINER, "Adding Context Job: " + addContextJob);
+ try {
+ updateJobs.put(addContextJob);
+ } catch (InterruptedException ie1) {
+ /* the queue is unbounded so it should never block. */
+ }
+ if (wait) {
+ return addContextJob.waitForCompletion();
+ }
+ } else if (wait) {
+ for (WebOfTrustUpdateJob updateJob : updateJobs) {
+ if (updateJob.equals(addContextJob)) {
+ return updateJob.waitForCompletion();
+ }
+ }
+ }
+ return false;
+ }
+
+ /**
+ * Removes the given context from the given own identity.
+ *
+ * @param ownIdentity
+ * The own identity to remove the context from
+ * @param context
+ * The context to remove
+ */
+ public void removeContext(OwnIdentity ownIdentity, String context) {
+ RemoveContextJob removeContextJob = new RemoveContextJob(ownIdentity, context);
+ if (!updateJobs.contains(removeContextJob)) {
+ logger.log(Level.FINER, "Adding Context Job: " + removeContextJob);
+ try {
+ updateJobs.put(removeContextJob);
+ } catch (InterruptedException ie1) {
+ /* the queue is unbounded so it should never block. */
+ }
+ }
+ }
+
//
// SERVICE METHODS
//
*
* @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
*/
- private static class WebOfTrustUpdateJob {
+ private class WebOfTrustUpdateJob {
+
+ /** Object for synchronization. */
+ @SuppressWarnings("hiding")
+ private final Object syncObject = new Object();
+
+ /** Whether the job has finished. */
+ private boolean finished;
+
+ /** Whether the job was successful. */
+ private boolean success;
//
// ACTIONS
/* does nothing. */
}
+ /**
+ * Waits for completion of this job or stopping of the WebOfTrust
+ * updater.
+ *
+ * @return {@code true} if this job finished successfully, {@code false}
+ * otherwise
+ *
+ * @see WebOfTrustUpdater#stop()
+ */
+ @SuppressWarnings("synthetic-access")
+ public boolean waitForCompletion() {
+ synchronized (syncObject) {
+ while (!finished && !shouldStop()) {
+ try {
+ syncObject.wait();
+ } catch (InterruptedException ie1) {
+ /* we’re looping, ignore. */
+ }
+ }
+ return success;
+ }
+ }
+
+ //
+ // PROTECTED METHODS
+ //
+
+ /**
+ * Signals that this job has finished.
+ *
+ * @param success
+ * {@code true} if this job finished successfully,
+ * {@code false} otherwise
+ */
+ protected void finish(boolean success) {
+ synchronized (syncObject) {
+ finished = true;
+ this.success = success;
+ syncObject.notifyAll();
+ }
+ }
+
}
/**
*
* @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
*/
- private static class WebOfTrustTrustUpdateJob extends WebOfTrustUpdateJob {
+ private class WebOfTrustTrustUpdateJob extends WebOfTrustUpdateJob {
/** The identity giving the trust. */
protected final OwnIdentity truster;
*/
@SuppressWarnings("synthetic-access")
public WebOfTrustTrustUpdateJob(OwnIdentity truster, Identity trustee) {
- super();
this.truster = truster;
this.trustee = trustee;
}
}
webOfTrustConnector.removeTrust(truster, trustee);
}
+ finish(true);
} catch (WebOfTrustException wote1) {
logger.log(Level.WARNING, "Could not set Trust value for " + truster + " -> " + trustee + " to " + score + " (" + comment + ")!", wote1);
+ finish(false);
}
}
if (trustee instanceof DefaultIdentity) {
((DefaultIdentity) trustee).setTrust(truster, trust);
}
+ finish(true);
} catch (PluginException pe1) {
logger.log(Level.WARNING, "Could not get Trust value for " + truster + " -> " + trustee + "!", pe1);
+ finish(false);
}
}
+
+ }
+
+ /**
+ * Base class for context updates of an {@link OwnIdentity}.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+ private class WebOfTrustContextUpdateJob extends WebOfTrustUpdateJob {
+
+ /** The own identity whose contexts to manage. */
+ protected final OwnIdentity ownIdentity;
+
+ /** The context to update. */
+ protected final String context;
+
+ /**
+ * Creates a new context update job.
+ *
+ * @param ownIdentity
+ * The own identity to update
+ * @param context
+ * The context to update
+ */
+ @SuppressWarnings("synthetic-access")
+ public WebOfTrustContextUpdateJob(OwnIdentity ownIdentity, String context) {
+ Validation.begin().isNotNull("OwnIdentity", ownIdentity).isNotNull("Context", context).check();
+ this.ownIdentity = ownIdentity;
+ this.context = context;
+ }
+
+ //
+ // OBJECT METHODS
+ //
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public boolean equals(Object object) {
+ if ((object == null) || !object.getClass().equals(getClass())) {
+ return false;
+ }
+ WebOfTrustContextUpdateJob updateJob = (WebOfTrustContextUpdateJob) object;
+ return updateJob.ownIdentity.equals(ownIdentity) && updateJob.context.equals(context);
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public int hashCode() {
+ return getClass().hashCode() ^ ownIdentity.hashCode() ^ context.hashCode();
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public String toString() {
+ return String.format("%s[ownIdentity=%s,context=%s]", getClass().getSimpleName(), ownIdentity, context);
+ }
+
+ }
+
+ /**
+ * Job that adds a context to an {@link OwnIdentity}.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+ private class AddContextJob extends WebOfTrustContextUpdateJob {
+
+ /**
+ * Creates a new add-context job.
+ *
+ * @param ownIdentity
+ * The own identity whose contexts to manage
+ * @param context
+ * The context to add
+ */
+ public AddContextJob(OwnIdentity ownIdentity, String context) {
+ super(ownIdentity, context);
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ @SuppressWarnings("synthetic-access")
+ public void run() {
+ try {
+ webOfTrustConnector.addContext(ownIdentity, context);
+ ownIdentity.addContext(context);
+ finish(true);
+ } catch (PluginException pe1) {
+ logger.log(Level.WARNING, String.format("Could not add Context “%2$s” to Own Identity %1$s!", ownIdentity, context), pe1);
+ finish(false);
+ }
+ }
+
+ }
+
+ /**
+ * Job that removes a context from an {@link OwnIdentity}.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+ private class RemoveContextJob extends WebOfTrustContextUpdateJob {
+
+ /**
+ * Creates a new remove-context job.
+ *
+ * @param ownIdentity
+ * The own identity whose contexts to manage
+ * @param context
+ * The context to remove
+ */
+ public RemoveContextJob(OwnIdentity ownIdentity, String context) {
+ super(ownIdentity, context);
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ @SuppressWarnings("synthetic-access")
+ public void run() {
+ try {
+ webOfTrustConnector.removeContext(ownIdentity, context);
+ ownIdentity.removeContext(context);
+ finish(true);
+ } catch (PluginException pe1) {
+ logger.log(Level.WARNING, String.format("Could not remove Context “%2$s” to Own Identity %1$s!", ownIdentity, context), pe1);
+ finish(false);
+ }
+ }
+
}
}
projects / Sone.git / blobdiff