/*
- * jSite2 - RequestManager.java -
- * Copyright © 2008 David Roden
+ * jSite-next - RequestManager.java -
+ * Copyright © 2009 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
package net.pterodactylus.jsite.core;
import java.io.IOException;
-import java.util.ArrayList;
+import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
-import java.util.List;
+import java.util.HashSet;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
-import net.pterodactylus.fcp.highlevel.GetRequestResult;
-import net.pterodactylus.fcp.highlevel.HighLevelCallback;
-import net.pterodactylus.fcp.highlevel.HighLevelCallbackListener;
-import net.pterodactylus.fcp.highlevel.HighLevelClient;
-import net.pterodactylus.fcp.highlevel.HighLevelProgress;
-import net.pterodactylus.fcp.highlevel.HighLevelProgressListener;
-import net.pterodactylus.fcp.highlevel.PutDirRequestResult;
-import net.pterodactylus.fcp.highlevel.PutRequestResult;
-import net.pterodactylus.fcp.highlevel.RequestListResult;
-import net.pterodactylus.fcp.highlevel.RequestResult;
-import net.pterodactylus.jsite.core.Request.Type;
-import net.pterodactylus.util.logging.Logging;
+import net.pterodactylus.fcp.highlevel.FcpClient;
+import net.pterodactylus.fcp.highlevel.FcpException;
+import net.pterodactylus.jsite.util.IdGenerator;
+import net.pterodactylus.util.number.Hex;
/**
- * The request manager keeps track of all the request on all connected nodes.
- * The request manager is added to the {@link NodeManager} as a
- * {@link NodeListener} so that it can fire request-removed events in case a
- * node is disconnected.
- *
- * @author David ‘Bombe’ Roden <bombe@freenetproject.org>
- * @version $Id$
+ * Manages requests.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
*/
-public class RequestManager implements NodeListener, HighLevelProgressListener {
+public class RequestManager implements NodeListener {
- /** Logger. */
- private static final Logger logger = Logging.getLogger(RequestManager.class.getName());
+ /** The logger. */
+ private static final Logger logger = Logger.getLogger(RequestManager.class.getName());
- /** Request listeners. */
- private List<RequestListener> requestListeners = Collections.synchronizedList(new ArrayList<RequestListener>());
+ /** Request event manager. */
+ private final RequestListenerManager requestListenerManager = new RequestListenerManager();
/** The node manager. */
- private NodeManager nodeManager;
+ private final NodeManager nodeManager;
- /** Request lists for all nodes. */
- @SuppressWarnings("unused")
- private Map<Node, Map<String, Request>> nodeRequests = Collections.synchronizedMap(new HashMap<Node, Map<String, Request>>());
+ /** Maps request IDs to requests. */
+ private final Map<String, Request> idRequests = Collections.synchronizedMap(new HashMap<String, Request>());
+
+ /**
+ * Creates a new request manager.
+ *
+ * @param nodeManager
+ * The node manager to utilize
+ */
+ public RequestManager(NodeManager nodeManager) {
+ this.nodeManager = nodeManager;
+ }
//
- // EVENT MANAGEMENT
+ // LISTENER MANAGEMENT
//
/**
- * Adds a request listener.
- *
+ * Adds the given request listener to the list of registered listeners.
+ *
+ * @see RequestListenerManager#addListener(RequestListener)
* @param requestListener
* The request listener to add
*/
public void addRequestListener(RequestListener requestListener) {
- requestListeners.add(requestListener);
+ requestListenerManager.addListener(requestListener);
}
/**
- * Removes a request listener.
- *
+ * Removes the given request listener from the list of registered listeners.
+ *
+ * @see RequestListenerManager#removeListener(RequestListener)
* @param requestListener
* The request listener to remove
*/
public void removeRequestListener(RequestListener requestListener) {
- requestListeners.remove(requestListener);
+ requestListenerManager.removeListener(requestListener);
}
- /**
- * Notifies all listeners that a request was added.
- *
- * @param request
- * The request that was added
- */
- private void fireRequestAdded(Request request) {
- for (RequestListener requestListener: requestListeners) {
- requestListener.requestAdded(request);
- }
+ //
+ // ACTIONS
+ //
+
+ public void load() throws IOException {
}
- /**
- * Notifies all listeners that a request progressed.
- *
- * @param request
- * The request
- */
- private void fireRequestProgressed(Request request) {
- for (RequestListener requestListener: requestListeners) {
- requestListener.requestProgressed(request);
- }
+ public void save() throws IOException {
}
/**
- * Notifies all listeners that a request was removed.
- *
- * @param request
- * The request that was removed
+ * Starts inserting the given project.
+ *
+ * @param project
+ * The project to insert
+ * @throws JSiteException
+ * if the project’s node is not connected, or no node is
+ * connected at all
*/
- private void fireRequestRemoved(Request request) {
- for (RequestListener requestListener: requestListeners) {
- requestListener.requestRemoved(request);
+ public void insertProject(Project project) throws JSiteException {
+ Request request = new Request();
+ request.setClientToken(generateClientToken(project));
+ Node wantedNode = project.getNode();
+ if (wantedNode == null) {
+ for (Node node : nodeManager.getNodes()) {
+ if (nodeManager.getFcpClient(node) != null) {
+ wantedNode = node;
+ break;
+ }
+ }
}
+ if (wantedNode == null) {
+ /* TODO use custom exception */
+ throw new JSiteException("No node connected.");
+ }
+ FcpClient fcpClient = nodeManager.getFcpClient(wantedNode);
}
//
- // ACCESSORS
+ // PRIVATE METHODS
//
/**
- * Sets the node manager to use.
- *
- * @param nodeManager
- * The node manager
+ * Checks whether the given client token is a client token created by this
+ * request manager.
+ *
+ * @param clientToken
+ * The client token to check
+ * @return {@code true} if the client token was created by this request
+ * manager, {@code false} otherwise
*/
- public void setNodeManager(NodeManager nodeManager) {
- this.nodeManager = nodeManager;
+ private boolean isKnownClientToken(String clientToken) {
+ String[] clientTokenParts = clientToken.split("\\.");
+ if (clientTokenParts.length != 3) {
+ return false;
+ }
+ String projectIdString = clientTokenParts[0];
+ if (projectIdString.length() != (IdGenerator.DEFAULT_LENGTH * 2)) {
+ return false;
+ }
+ int clientTokenHashCode = -1;
+ try {
+ Hex.toByte(projectIdString);
+ Long.valueOf(clientTokenParts[1]);
+ clientTokenHashCode = Integer.valueOf(clientTokenParts[2]);
+ } catch (NumberFormatException nfe1) {
+ return false;
+ }
+ if ((clientTokenParts[0] + "." + clientTokenParts[1]).hashCode() != clientTokenHashCode) {
+ return false;
+ }
+ return true;
}
- //
- // ACTIONS
- //
-
- //
- // PRIVATE ACTIONS
- //
+ /**
+ * Generates a client token for the given project.
+ *
+ * @param project
+ * The project to generate a client token for
+ * @return The generated client token
+ */
+ public String generateClientToken(Project project) {
+ String clientToken = project.getId() + "." + System.currentTimeMillis();
+ clientToken += "." + clientToken.hashCode();
+ return clientToken;
+ }
/**
- * Requests a list of all running requests from a node. This method will
- * block until the request has been sent!
- *
- * @param node
- * The node to get all requests for
- * @throws IOException
- * if an I/O error occurs while communicating with the node
+ * Wraps the requests of the FCP API into jSite requests.
+ *
+ * @param requests
+ * The requests to wrap
+ * @return The wrapped requests
*/
- private void getRequests(final Node node) throws IOException {
- HighLevelClient highLevelClient = nodeManager.getHighLevelClient(node);
- if (highLevelClient == null) {
- logger.log(Level.WARNING, "no client for node: " + node);
- return;
+ private Collection<Request> wrapRequests(Collection<net.pterodactylus.fcp.highlevel.Request> requests) {
+ Collection<Request> wrappedRequests = new HashSet<Request>();
+ for (net.pterodactylus.fcp.highlevel.Request request : requests) {
+ Request wrappedRequest = new Request(request.getIdentifier());
+ wrappedRequest.setClientToken(request.getClientToken());
+ wrappedRequests.add(wrappedRequest);
}
- final Map<String, Request> identifierRequests = Collections.synchronizedMap(new HashMap<String, Request>());
- nodeRequests.put(node, identifierRequests);
- HighLevelCallback<RequestListResult> requestListCallback = highLevelClient.getRequests();
- requestListCallback.addHighLevelCallbackListener(new HighLevelCallbackListener<RequestListResult>() {
-
- @SuppressWarnings("synthetic-access")
- public void gotResult(HighLevelCallback<RequestListResult> highLevelCallback) {
- RequestListResult requestListResult;
- try {
- requestListResult = highLevelCallback.getResult();
- } catch (InterruptedException e) {
- logger.log(Level.SEVERE, "getResult() blocked and was interrupted");
- return;
- }
- for (RequestResult requestResult: requestListResult) {
- String identifier = requestResult.getIdentifier();
- logger.log(Level.FINER, "got identifier: " + identifier);
- Request request = identifierRequests.get(identifier);
- if (request == null) {
- request = new Request(node, identifier);
- }
- if (request.getType() == null) {
- if (requestResult instanceof GetRequestResult) {
- request.setType(Type.get);
- } else if (requestResult instanceof PutRequestResult) {
- request.setType(Type.put);
- } else if (requestResult instanceof PutDirRequestResult) {
- request.setType(Type.putDir);
- }
- }
- if (identifierRequests.containsKey(identifier)) {
- continue;
- }
- identifierRequests.put(requestResult.getIdentifier(), request);
- fireRequestAdded(request);
- }
- }
- });
+ return wrappedRequests;
}
//
* {@inheritDoc}
*/
public void nodeAdded(Node node) {
- HighLevelClient highLevelClient = nodeManager.getHighLevelClient(node);
- if (highLevelClient == null) {
- logger.warning("got nodeAdded but no high-level client: " + node);
- return;
- }
- highLevelClient.addHighLevelProgressListener(this);
- }
-
- /**
- * {@inheritDoc}
- */
- public void nodeRemoved(Node node) {
- HighLevelClient highLevelClient = nodeManager.getHighLevelClient(node);
- if (highLevelClient == null) {
- logger.warning("got nodeRemoved but no high-level client: " + node);
- return;
- }
- highLevelClient.removeHighLevelProgressListener(this);
+ /* ignore. */
}
/**
* {@inheritDoc}
*/
public void nodeConnected(Node node) {
- HighLevelClient highLevelClient = nodeManager.getHighLevelClient(node);
- if (highLevelClient == null) {
- logger.log(Level.WARNING, "got no high-level client for node " + node);
+ FcpClient fcpClient = nodeManager.getFcpClient(node);
+ if (fcpClient == null) {
+ logger.log(Level.WARNING, "Got no FCP client for node (" + node + ")!");
return;
}
try {
- highLevelClient.setWatchGlobal(true);
- getRequests(node);
- } catch (IOException e) {
- /* ignore exception, disconnects are handled elsewhere. */
+ Collection<Request> requests = wrapRequests(fcpClient.getRequests(true));
+ for (Request request : requests) {
+ String clientToken = request.getClientToken();
+ if ((clientToken == null) || (clientToken.trim().length() == 0)) {
+ continue;
+ }
+ if (!isKnownClientToken(clientToken)) {
+ continue;
+ }
+ /* TODO - process request. */
+ }
+ } catch (IOException ioe1) {
+ logger.log(Level.WARNING, "Could not get requests from node (" + node + ")!", ioe1);
+ } catch (FcpException fe1) {
+ logger.log(Level.WARNING, "Could not get requests from node (" + node + ")!", fe1);
}
}
* {@inheritDoc}
*/
public void nodeConnectionFailed(Node node, Throwable cause) {
- /* we don't care about this. */
+ /* ignore. */
}
/**
* {@inheritDoc}
*/
public void nodeDisconnected(Node node, Throwable throwable) {
- Map<String, Request> identifierRequests = nodeRequests.get(node);
- if (identifierRequests == null) {
- logger.warning("got node without request map: " + node);
- return;
- }
- for (Request request: identifierRequests.values()) {
- fireRequestRemoved(request);
- }
- identifierRequests.clear();
+ /* TODO */
}
- //
- // INTERFACE HighLevelProgressListener
- //
-
/**
- * @see net.pterodactylus.fcp.highlevel.HighLevelProgressListener#progressReceived(HighLevelClient,
- * String, HighLevelProgress)
+ * {@inheritDoc}
*/
- public void progressReceived(HighLevelClient highLevelClient, String identifier, HighLevelProgress highLevelProgress) {
- Node node = nodeManager.getNode(highLevelClient);
- if (node == null) {
- logger.warning("got high-level client without node: " + highLevelClient);
- return;
- }
- Map<String, Request> identifierRequests = nodeRequests.get(node);
- if (identifierRequests == null) {
- logger.warning("got node without request map: " + node);
- identifierRequests = Collections.synchronizedMap(new HashMap<String, Request>());
- nodeRequests.put(node, identifierRequests);
- }
- Request request = identifierRequests.get(identifier);
- if (request == null) {
- logger.warning("got progress for unknown request: " + identifier);
- request = new Request(node, identifier);
- identifierRequests.put(identifier, request);
- fireRequestAdded(request);
- }
- request.setTotalBlocks(highLevelProgress.getTotalBlocks());
- request.setRequiredBlocks(highLevelProgress.getRequiredBlocks());
- request.setSuccessfulBlocks(highLevelProgress.getSuccessfulBlocks());
- request.setFailedBlocks(highLevelProgress.getFailedBlocks());
- request.setFatallyFailedBlocks(highLevelProgress.getFatallyFailedBlocks());
- request.setTotalFinalized(highLevelProgress.isTotalFinalized());
- fireRequestProgressed(request);
+ public void nodeRemoved(Node node) {
+ /* ignore. */
}
}
projects / jSite2.git / blobdiff