import java.net.InetAddress;
import java.net.URL;
import java.net.UnknownHostException;
+import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import java.util.concurrent.CountDownLatch;
import net.pterodactylus.fcp.AddPeer;
import net.pterodactylus.fcp.ClientHello;
import net.pterodactylus.fcp.CloseConnectionDuplicateClientName;
+import net.pterodactylus.fcp.EndListPeerNotes;
import net.pterodactylus.fcp.EndListPeers;
import net.pterodactylus.fcp.FcpAdapter;
import net.pterodactylus.fcp.FcpConnection;
import net.pterodactylus.fcp.FcpListener;
+import net.pterodactylus.fcp.ListPeerNotes;
import net.pterodactylus.fcp.ListPeers;
import net.pterodactylus.fcp.ModifyPeer;
import net.pterodactylus.fcp.NodeHello;
import net.pterodactylus.fcp.NodeRef;
import net.pterodactylus.fcp.Peer;
+import net.pterodactylus.fcp.PeerNote;
+import net.pterodactylus.fcp.PeerRemoved;
import net.pterodactylus.fcp.ProtocolError;
+import net.pterodactylus.fcp.RemovePeer;
+import net.pterodactylus.util.thread.ObjectWrapper;
/**
* High-level FCP client that hides the details of the underlying FCP
* if an FCP error occurs
*/
public void connect() throws IOException, FcpException {
- ExtendedFcpAdapter fcpListener = new ExtendedFcpAdapter() {
+ new ExtendedFcpAdapter() {
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ @SuppressWarnings("synthetic-access")
+ public void run() throws IOException {
+ fcpConnection.connect();
+ ClientHello clientHello = new ClientHello(name);
+ fcpConnection.sendMessage(clientHello);
+ }
/**
* {@inheritDoc}
public void receivedNodeHello(FcpConnection fcpConnection, NodeHello nodeHello) {
completionLatch.countDown();
}
- };
- fcpConnection.addFcpListener(fcpListener);
- try {
- fcpConnection.connect();
- ClientHello clientHello = new ClientHello(name);
- fcpConnection.sendMessage(clientHello);
- while (true) {
- try {
- fcpListener.complete();
- break;
- } catch (InterruptedException e) {
- /* ignore, we’ll loop. */
- }
- }
- } finally {
- fcpConnection.removeFcpListener(fcpListener);
- }
- if (fcpListener.getFcpException() != null) {
- throw fcpListener.getFcpException();
- }
+ }.execute();
}
/**
/**
* Returns all peers that the node has.
*
+ * @param withMetadata
+ * <code>true</code> to include peer metadata
+ * @param withVolatile
+ * <code>true</code> to include volatile peer data
* @return A set containing the node’s peers
* @throws IOException
* if an I/O error occurs
* @throws FcpException
* if an FCP error occurs
*/
- public Set<Peer> getPeers() throws IOException, FcpException {
- final Set<Peer> peers = new HashSet<Peer>();
- ExtendedFcpAdapter fcpListener = new ExtendedFcpAdapter() {
+ public Set<Peer> getPeers(final boolean withMetadata, final boolean withVolatile) throws IOException, FcpException {
+ final Set<Peer> peers = Collections.synchronizedSet(new HashSet<Peer>());
+ new ExtendedFcpAdapter() {
+
+ /** The ID of the “ListPeers” request. */
+ private String identifier = "list-peers-" + System.currentTimeMillis();
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ @SuppressWarnings("synthetic-access")
+ public void run() throws IOException {
+ fcpConnection.sendMessage(new ListPeers(identifier, withMetadata, withVolatile));
+ }
/**
* {@inheritDoc}
*/
@Override
public void receivedPeer(FcpConnection fcpConnection, Peer peer) {
- peers.add(peer);
+ if (peer.getIdentifier().equals(identifier)) {
+ peers.add(peer);
+ }
}
/**
*/
@Override
public void receivedEndListPeers(FcpConnection fcpConnection, EndListPeers endListPeers) {
- completionLatch.countDown();
- }
- };
- fcpConnection.addFcpListener(fcpListener);
- fcpConnection.sendMessage(new ListPeers("list-peers"));
- try {
- while (true) {
- try {
- fcpListener.complete();
- break;
- } catch (InterruptedException e) {
- /* ignore, we’ll loop. */
+ if (endListPeers.getIdentifier().equals(identifier)) {
+ completionLatch.countDown();
}
}
- } finally {
- fcpConnection.removeFcpListener(fcpListener);
- }
- if (fcpListener.getFcpException() != null) {
- throw fcpListener.getFcpException();
- }
+ }.execute();
return peers;
}
* @throws FcpException
* if an FCP error occurs
*/
- private void addPeer(AddPeer addPeer) throws IOException, FcpException {
- ExtendedFcpAdapter fcpListener = new ExtendedFcpAdapter() {
+ private void addPeer(final AddPeer addPeer) throws IOException, FcpException {
+ new ExtendedFcpAdapter() {
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ @SuppressWarnings("synthetic-access")
+ public void run() throws IOException {
+ fcpConnection.sendMessage(addPeer);
+ }
/**
* {@inheritDoc}
public void receivedPeer(FcpConnection fcpConnection, Peer peer) {
completionLatch.countDown();
}
- };
- fcpConnection.addFcpListener(fcpListener);
- try {
- fcpConnection.sendMessage(addPeer);
- while (true) {
- try {
- fcpListener.complete();
- break;
- } catch (InterruptedException ie1) {
- /* ignore, we’ll loop. */
- }
- }
- } finally {
- fcpConnection.removeFcpListener(fcpListener);
- }
- if (fcpListener.getFcpException() != null) {
- throw fcpListener.getFcpException();
- }
+ }.execute();
}
/**
* @throws FcpException
* if an FCP error occurs
*/
- public void modifyPeer(Peer peer, Boolean allowLocalAddresses, Boolean disabled, Boolean listenOnly) throws IOException, FcpException {
- ExtendedFcpAdapter fcpListener = new ExtendedFcpAdapter() {
+ public void modifyPeer(final Peer peer, final Boolean allowLocalAddresses, final Boolean disabled, final Boolean listenOnly) throws IOException, FcpException {
+ new ExtendedFcpAdapter() {
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ @SuppressWarnings("synthetic-access")
+ public void run() throws IOException {
+ fcpConnection.sendMessage(new ModifyPeer(peer.getIdentity(), allowLocalAddresses, disabled, listenOnly));
+ }
/**
* {@inheritDoc}
public void receivedPeer(FcpConnection fcpConnection, Peer peer) {
completionLatch.countDown();
}
- };
- fcpConnection.addFcpListener(fcpListener);
- try {
- fcpConnection.sendMessage(new ModifyPeer(peer.getIdentity(), allowLocalAddresses, disabled, listenOnly));
- } finally {
- fcpConnection.removeFcpListener(fcpListener);
- }
- if (fcpListener.getFcpException() != null) {
- throw fcpListener.getFcpException();
- }
+ }.execute();
+ }
+
+ /**
+ * Removes the given peer.
+ *
+ * @param peer
+ * The peer to remove
+ * @throws IOException
+ * if an I/O error occurs
+ * @throws FcpException
+ * if an FCP error occurs
+ */
+ public void removePeer(final Peer peer) throws IOException, FcpException {
+ new ExtendedFcpAdapter() {
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ @SuppressWarnings("synthetic-access")
+ public void run() throws IOException {
+ fcpConnection.sendMessage(new RemovePeer(peer.getIdentity()));
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void receivedPeerRemoved(FcpConnection fcpConnection, PeerRemoved peerRemoved) {
+ completionLatch.countDown();
+ }
+ }.execute();
+ }
+
+ //
+ // PEER NOTES MANAGEMENT
+ //
+
+ /**
+ * Returns the peer note of the given peer.
+ *
+ * @param peer
+ * The peer to get the note for
+ * @return The peer’s note
+ * @throws IOException
+ * if an I/O error occurs
+ * @throws FcpException
+ * if an FCP error occurs
+ */
+ public PeerNote getPeerNote(final Peer peer) throws IOException, FcpException {
+ final ObjectWrapper<PeerNote> objectWrapper = new ObjectWrapper<PeerNote>();
+ new ExtendedFcpAdapter() {
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ @SuppressWarnings("synthetic-access")
+ public void run() throws IOException {
+ fcpConnection.sendMessage(new ListPeerNotes(peer.getIdentity()));
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void receivedPeerNote(FcpConnection fcpConnection, PeerNote peerNote) {
+ if (peerNote.getNodeIdentifier().equals(peer.getIdentity())) {
+ objectWrapper.set(peerNote);
+ }
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void receivedEndListPeerNotes(FcpConnection fcpConnection, EndListPeerNotes endListPeerNotes) {
+ completionLatch.countDown();
+ }
+ }.execute();
+ return objectWrapper.get();
}
/**
*
* @author David ‘Bombe’ Roden <bombe@freenetproject.org>
*/
- private static class ExtendedFcpAdapter extends FcpAdapter {
+ private abstract class ExtendedFcpAdapter extends FcpAdapter {
/** The count down latch used to wait for completion. */
protected final CountDownLatch completionLatch = new CountDownLatch(1);
}
/**
- * Returns the FCP exception that occured. If no FCP exception occured,
- * <code>null</code> is returned.
+ * Executes the FCP commands in {@link #run()}, wrapping the execution
+ * and catching exceptions.
*
- * @return The FCP exception that occured, or <code>null</code>
+ * @throws IOException
+ * if an I/O error occurs
+ * @throws FcpException
+ * if an FCP error occurs
*/
- public FcpException getFcpException() {
- return fcpException;
+ @SuppressWarnings("synthetic-access")
+ public void execute() throws IOException, FcpException {
+ fcpConnection.addFcpListener(this);
+ try {
+ run();
+ while (true) {
+ try {
+ completionLatch.await();
+ break;
+ } catch (InterruptedException ie1) {
+ /* ignore, we’ll loop. */
+ }
+ }
+ } finally {
+ fcpConnection.removeFcpListener(this);
+ }
+ if (fcpException != null) {
+ throw fcpException;
+ }
}
/**
- * Waits for the completion of the command.
+ * The FCP commands that actually get executed.
*
- * @throws InterruptedException
- * if {@link CountDownLatch#await()} is interrupted
+ * @throws IOException
+ * if an I/O error occurs
*/
- public void complete() throws InterruptedException {
- completionLatch.await();
- }
+ public abstract void run() throws IOException;
/**
* {@inheritDoc}
projects / jFCPlib.git / blobdiff