package net.pterodactylus.fcp.highlevel;
import java.io.IOException;
+import java.io.InputStream;
import java.net.InetAddress;
import java.net.URL;
import java.net.UnknownHostException;
+import java.util.Collection;
import java.util.Collections;
+import java.util.HashMap;
import java.util.HashSet;
+import java.util.Map;
import java.util.Set;
+import java.util.Map.Entry;
import java.util.concurrent.CountDownLatch;
import net.pterodactylus.fcp.AddPeer;
import net.pterodactylus.fcp.ClientHello;
import net.pterodactylus.fcp.CloseConnectionDuplicateClientName;
+import net.pterodactylus.fcp.DataFound;
import net.pterodactylus.fcp.EndListPeerNotes;
import net.pterodactylus.fcp.EndListPeers;
+import net.pterodactylus.fcp.EndListPersistentRequests;
+import net.pterodactylus.fcp.FCPPluginMessage;
+import net.pterodactylus.fcp.FCPPluginReply;
import net.pterodactylus.fcp.FcpAdapter;
import net.pterodactylus.fcp.FcpConnection;
import net.pterodactylus.fcp.FcpListener;
import net.pterodactylus.fcp.GenerateSSK;
+import net.pterodactylus.fcp.GetFailed;
import net.pterodactylus.fcp.ListPeerNotes;
import net.pterodactylus.fcp.ListPeers;
+import net.pterodactylus.fcp.ListPersistentRequests;
import net.pterodactylus.fcp.ModifyPeer;
import net.pterodactylus.fcp.ModifyPeerNote;
import net.pterodactylus.fcp.NodeHello;
import net.pterodactylus.fcp.Peer;
import net.pterodactylus.fcp.PeerNote;
import net.pterodactylus.fcp.PeerRemoved;
+import net.pterodactylus.fcp.PersistentGet;
+import net.pterodactylus.fcp.PersistentPut;
import net.pterodactylus.fcp.ProtocolError;
import net.pterodactylus.fcp.RemovePeer;
import net.pterodactylus.fcp.SSKKeypair;
+import net.pterodactylus.fcp.SimpleProgress;
+import net.pterodactylus.fcp.WatchGlobal;
+import net.pterodactylus.util.filter.Filter;
+import net.pterodactylus.util.filter.Filters;
import net.pterodactylus.util.thread.ObjectWrapper;
/**
/** The underlying FCP connection. */
private final FcpConnection fcpConnection;
+ /** Whether the client is currently connected. */
+ private volatile boolean connected;
+
/**
* Creates an FCP client with the given name.
*
* if an FCP error occurs
*/
public void connect() throws IOException, FcpException {
+ checkConnected(false);
+ connected = true;
new ExtendedFcpAdapter() {
/**
fcpConnection.connect();
ClientHello clientHello = new ClientHello(name);
fcpConnection.sendMessage(clientHello);
+ WatchGlobal watchGlobal = new WatchGlobal(true);
+ fcpConnection.sendMessage(watchGlobal);
}
/**
}
}
+ /**
+ * Returns whether this client is currently connected.
+ *
+ * @return {@code true} if the client is currently connected, {@code false}
+ * otherwise
+ */
+ public boolean isConnected() {
+ return connected;
+ }
+
//
// PEER MANAGEMENT
//
* @throws FcpException
* if an FCP error occurs
*/
- public Set<Peer> getPeers(final boolean withMetadata, final boolean withVolatile) throws IOException, FcpException {
+ public Collection<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();
+ @SuppressWarnings("synthetic-access")
+ private String identifier = createIdentifier("list-peers");
/**
* {@inheritDoc}
}
/**
+ * Returns all darknet peers.
+ *
+ * @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 darknet peers
+ * @throws IOException
+ * if an I/O error occurs
+ * @throws FcpException
+ * if an FCP error occurs
+ */
+ public Collection<Peer> getDarknetPeers(boolean withMetadata, boolean withVolatile) throws IOException, FcpException {
+ Collection<Peer> allPeers = getPeers(withMetadata, withVolatile);
+ Collection<Peer> darknetPeers = new HashSet<Peer>();
+ for (Peer peer : allPeers) {
+ if (!peer.isOpennet() && !peer.isSeed()) {
+ darknetPeers.add(peer);
+ }
+ }
+ return darknetPeers;
+ }
+
+ /**
+ * Returns all opennet peers.
+ *
+ * @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 opennet peers
+ * @throws IOException
+ * if an I/O error occurs
+ * @throws FcpException
+ * if an FCP error occurs
+ */
+ public Collection<Peer> getOpennetPeers(boolean withMetadata, boolean withVolatile) throws IOException, FcpException {
+ Collection<Peer> allPeers = getPeers(withMetadata, withVolatile);
+ Collection<Peer> opennetPeers = new HashSet<Peer>();
+ for (Peer peer : allPeers) {
+ if (peer.isOpennet() && !peer.isSeed()) {
+ opennetPeers.add(peer);
+ }
+ }
+ return opennetPeers;
+ }
+
+ /**
+ * Returns all seed peers.
+ *
+ * @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 seed peers
+ * @throws IOException
+ * if an I/O error occurs
+ * @throws FcpException
+ * if an FCP error occurs
+ */
+ public Collection<Peer> getSeedPeers(boolean withMetadata, boolean withVolatile) throws IOException, FcpException {
+ Collection<Peer> allPeers = getPeers(withMetadata, withVolatile);
+ Collection<Peer> seedPeers = new HashSet<Peer>();
+ for (Peer peer : allPeers) {
+ if (peer.isSeed()) {
+ seedPeers.add(peer);
+ }
+ }
+ return seedPeers;
+ }
+
+ /**
* Adds the given peer to the node.
*
* @param peer
return sskKeypairWrapper.get();
}
+ //
+ // REQUEST MANAGEMENT
+ //
+
+ /**
+ * Returns all currently visible persistent get requests.
+ *
+ * @param global
+ * <code>true</code> to return get requests from the global
+ * queue, <code>false</code> to only show requests from the
+ * client-local queue
+ * @return All get requests
+ * @throws IOException
+ * if an I/O error occurs
+ * @throws FcpException
+ * if an FCP error occurs
+ */
+ public Collection<Request> getGetRequests(final boolean global) throws IOException, FcpException {
+ return Filters.filteredCollection(getRequests(global), new Filter<Request>() {
+
+ /**
+ * {@inheritDoc}
+ */
+ public boolean filterObject(Request request) {
+ return request instanceof GetRequest;
+ }
+ });
+ }
+
+ /**
+ * Returns all currently visible persistent put requests.
+ *
+ * @param global
+ * <code>true</code> to return put requests from the global
+ * queue, <code>false</code> to only show requests from the
+ * client-local queue
+ * @return All put requests
+ * @throws IOException
+ * if an I/O error occurs
+ * @throws FcpException
+ * if an FCP error occurs
+ */
+ public Collection<Request> getPutRequests(final boolean global) throws IOException, FcpException {
+ return Filters.filteredCollection(getRequests(global), new Filter<Request>() {
+
+ /**
+ * {@inheritDoc}
+ */
+ public boolean filterObject(Request request) {
+ return request instanceof PutRequest;
+ }
+ });
+ }
+
+ /**
+ * Returns all currently visible persistent requests.
+ *
+ * @param global
+ * <code>true</code> to return requests from the global queue,
+ * <code>false</code> to only show requests from the client-local
+ * queue
+ * @return All requests
+ * @throws IOException
+ * if an I/O error occurs
+ * @throws FcpException
+ * if an FCP error occurs
+ */
+ public Collection<Request> getRequests(final boolean global) throws IOException, FcpException {
+ final Map<String, Request> requests = Collections.synchronizedMap(new HashMap<String, Request>());
+ new ExtendedFcpAdapter() {
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ @SuppressWarnings("synthetic-access")
+ public void run() throws IOException {
+ fcpConnection.sendMessage(new ListPersistentRequests());
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void receivedPersistentGet(FcpConnection fcpConnection, PersistentGet persistentGet) {
+ if (!persistentGet.isGlobal() || global) {
+ GetRequest getRequest = new GetRequest(persistentGet);
+ requests.put(persistentGet.getIdentifier(), getRequest);
+ }
+ }
+
+ /**
+ * {@inheritDoc}
+ *
+ * @see net.pterodactylus.fcp.FcpAdapter#receivedDataFound(net.pterodactylus.fcp.FcpConnection,
+ * net.pterodactylus.fcp.DataFound)
+ */
+ @Override
+ public void receivedDataFound(FcpConnection fcpConnection, DataFound dataFound) {
+ Request getRequest = requests.get(dataFound.getIdentifier());
+ if (getRequest == null) {
+ return;
+ }
+ getRequest.setComplete(true);
+ getRequest.setLength(dataFound.getDataLength());
+ getRequest.setContentType(dataFound.getMetadataContentType());
+ }
+
+ /**
+ * {@inheritDoc}
+ *
+ * @see net.pterodactylus.fcp.FcpAdapter#receivedGetFailed(net.pterodactylus.fcp.FcpConnection,
+ * net.pterodactylus.fcp.GetFailed)
+ */
+ @Override
+ public void receivedGetFailed(FcpConnection fcpConnection, GetFailed getFailed) {
+ Request getRequest = requests.get(getFailed.getIdentifier());
+ if (getRequest == null) {
+ return;
+ }
+ getRequest.setComplete(true);
+ getRequest.setFailed(true);
+ getRequest.setFatal(getFailed.isFatal());
+ getRequest.setErrorCode(getFailed.getCode());
+ }
+
+ /**
+ * {@inheritDoc}
+ *
+ * @see net.pterodactylus.fcp.FcpAdapter#receivedPersistentPut(net.pterodactylus.fcp.FcpConnection,
+ * net.pterodactylus.fcp.PersistentPut)
+ */
+ @Override
+ public void receivedPersistentPut(FcpConnection fcpConnection, PersistentPut persistentPut) {
+ if (!persistentPut.isGlobal() || global) {
+ PutRequest putRequest = new PutRequest(persistentPut);
+ requests.put(persistentPut.getIdentifier(), putRequest);
+ }
+ }
+
+ /**
+ * {@inheritDoc}
+ *
+ * @see net.pterodactylus.fcp.FcpAdapter#receivedSimpleProgress(net.pterodactylus.fcp.FcpConnection,
+ * net.pterodactylus.fcp.SimpleProgress)
+ */
+ @Override
+ public void receivedSimpleProgress(FcpConnection fcpConnection, SimpleProgress simpleProgress) {
+ Request request = requests.get(simpleProgress.getIdentifier());
+ if (request == null) {
+ return;
+ }
+ request.setTotalBlocks(simpleProgress.getTotal());
+ request.setRequiredBlocks(simpleProgress.getRequired());
+ request.setFailedBlocks(simpleProgress.getFailed());
+ request.setFatallyFailedBlocks(simpleProgress.getFatallyFailed());
+ request.setSucceededBlocks(simpleProgress.getSucceeded());
+ request.setFinalizedTotal(simpleProgress.isFinalizedTotal());
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void receivedEndListPersistentRequests(FcpConnection fcpConnection, EndListPersistentRequests endListPersistentRequests) {
+ completionLatch.countDown();
+ }
+ }.execute();
+ return requests.values();
+ }
+
+ /**
+ * Sends a message to a plugin and waits for the response.
+ *
+ * @param pluginClass
+ * The name of the plugin class
+ * @param parameters
+ * The parameters for the plugin
+ * @return The responses from the plugin
+ * @throws FcpException
+ * if an FCP error occurs
+ * @throws IOException
+ * if an I/O error occurs
+ */
+ public Map<String, String> sendPluginMessage(String pluginClass, Map<String, String> parameters) throws IOException, FcpException {
+ return sendPluginMessage(pluginClass, parameters, 0, null);
+ }
+
+ /**
+ * Sends a message to a plugin and waits for the response.
+ *
+ * @param pluginClass
+ * The name of the plugin class
+ * @param parameters
+ * The parameters for the plugin
+ * @param dataLength
+ * The length of the optional data stream, or {@code 0} if there
+ * is no optional data stream
+ * @param dataInputStream
+ * The input stream for the payload, or {@code null} if there is
+ * no payload
+ * @return The responses from the plugin
+ * @throws FcpException
+ * if an FCP error occurs
+ * @throws IOException
+ * if an I/O error occurs
+ */
+ public Map<String, String> sendPluginMessage(final String pluginClass, final Map<String, String> parameters, final long dataLength, final InputStream dataInputStream) throws IOException, FcpException {
+ final Map<String, String> pluginReplies = Collections.synchronizedMap(new HashMap<String, String>());
+ new ExtendedFcpAdapter() {
+
+ @SuppressWarnings("synthetic-access")
+ private final String identifier = createIdentifier("FCPPluginMessage");
+
+ @Override
+ @SuppressWarnings("synthetic-access")
+ public void run() throws IOException {
+ FCPPluginMessage fcpPluginMessage = new FCPPluginMessage(pluginClass);
+ for (Entry<String, String> parameter : parameters.entrySet()) {
+ fcpPluginMessage.setParameter(parameter.getKey(), parameter.getValue());
+ }
+ fcpPluginMessage.setIdentifier(identifier);
+ if ((dataLength > 0) && (dataInputStream != null)) {
+ fcpPluginMessage.setDataLength(dataLength);
+ fcpPluginMessage.setPayloadInputStream(dataInputStream);
+ }
+ fcpConnection.sendMessage(fcpPluginMessage);
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void receivedFCPPluginReply(FcpConnection fcpConnection, FCPPluginReply fcpPluginReply) {
+ if (!fcpPluginReply.getIdentifier().equals(identifier)) {
+ return;
+ }
+ pluginReplies.putAll(fcpPluginReply.getReplies());
+ completionLatch.countDown();
+ }
+
+ }.execute();
+ return pluginReplies;
+ }
+
+ //
+ // PRIVATE METHODS
+ //
+
+ /**
+ * Creates a unique request identifier.
+ *
+ * @param basename
+ * The basename of the request
+ * @return The created request identifier
+ */
+ private String createIdentifier(String basename) {
+ return basename + "-" + System.currentTimeMillis() + "-" + (int) (Math.random() * Integer.MAX_VALUE);
+ }
+
+ /**
+ * Checks whether the connection is in the required state.
+ *
+ * @param connected
+ * The required connection state
+ * @throws FcpException
+ * if the connection is not in the required state
+ */
+ private void checkConnected(boolean connected) throws FcpException {
+ if (this.connected != connected) {
+ throw new FcpException("Client is " + (connected ? "not" : "already") + " connected.");
+ }
+ }
+
+ /**
+ * Tells the client that it is now disconnected. This method is called by
+ * {@link ExtendedFcpAdapter} only.
+ */
+ private void setDisconnected() {
+ connected = false;
+ }
+
/**
* Implementation of an {@link FcpListener} that can store an
* {@link FcpException} and wait for the arrival of a certain command.
*/
@SuppressWarnings("synthetic-access")
public void execute() throws IOException, FcpException {
+ checkConnected(true);
fcpConnection.addFcpListener(this);
try {
run();
/* ignore, we’ll loop. */
}
}
+ } catch (IOException ioe1) {
+ setDisconnected();
+ throw ioe1;
} finally {
fcpConnection.removeFcpListener(this);
}
if (fcpException != null) {
+ setDisconnected();
throw fcpException;
}
}