2 * jSite2 - RequestManager.java -
3 * Copyright © 2008 David Roden
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 package net.pterodactylus.jsite.core;
22 import java.io.IOException;
23 import java.util.ArrayList;
24 import java.util.Collections;
25 import java.util.HashMap;
26 import java.util.List;
28 import java.util.logging.Level;
29 import java.util.logging.Logger;
31 import net.pterodactylus.fcp.highlevel.HighLevelCallback;
32 import net.pterodactylus.fcp.highlevel.HighLevelCallbackListener;
33 import net.pterodactylus.fcp.highlevel.HighLevelClient;
34 import net.pterodactylus.fcp.highlevel.HighLevelProgress;
35 import net.pterodactylus.fcp.highlevel.HighLevelProgressListener;
36 import net.pterodactylus.fcp.highlevel.RequestListResult;
37 import net.pterodactylus.fcp.highlevel.RequestResult;
38 import net.pterodactylus.util.logging.Logging;
41 * The request manager keeps track of all the request on all connected nodes.
42 * The request manager is added to the {@link NodeManager} as a
43 * {@link NodeListener} so that it can fire request-removed events in case a
44 * node is disconnected.
46 * @author David ‘Bombe’ Roden <bombe@freenetproject.org>
49 public class RequestManager implements NodeListener, HighLevelProgressListener {
52 private static final Logger logger = Logging.getLogger(RequestManager.class.getName());
54 /** Request listeners. */
55 private List<RequestListener> requestListeners = Collections.synchronizedList(new ArrayList<RequestListener>());
57 /** The node manager. */
58 private NodeManager nodeManager;
60 /** Request lists for all nodes. */
61 @SuppressWarnings("unused")
62 private Map<Node, Map<String, Request>> nodeRequests = Collections.synchronizedMap(new HashMap<Node, Map<String, Request>>());
69 * Adds a request listener.
71 * @param requestListener
72 * The request listener to add
74 public void addRequestListener(RequestListener requestListener) {
75 requestListeners.add(requestListener);
79 * Removes a request listener.
81 * @param requestListener
82 * The request listener to remove
84 public void removeRequestListener(RequestListener requestListener) {
85 requestListeners.remove(requestListener);
89 * Notifies all listeners that a request was added.
92 * The request that was added
94 private void fireRequestAdded(Request request) {
95 for (RequestListener requestListener: requestListeners) {
96 requestListener.requestAdded(request);
101 * Notifies all listeners that a request progressed.
106 private void fireRequestProgressed(Request request) {
107 for (RequestListener requestListener: requestListeners) {
108 requestListener.requestProgressed(request);
113 * Notifies all listeners that a request was removed.
116 * The request that was removed
118 private void fireRequestRemoved(Request request) {
119 for (RequestListener requestListener: requestListeners) {
120 requestListener.requestRemoved(request);
129 * Sets the node manager to use.
134 public void setNodeManager(NodeManager nodeManager) {
135 this.nodeManager = nodeManager;
147 * Requests a list of all running requests from a node. This method will
148 * block until the request has been sent!
151 * The node to get all requests for
152 * @throws IOException
153 * if an I/O error occurs while communicating with the node
155 private void getRequests(final Node node) throws IOException {
156 HighLevelClient highLevelClient = nodeManager.getHighLevelClient(node);
157 if (highLevelClient == null) {
158 logger.log(Level.WARNING, "no client for node: " + node);
161 final Map<String, Request> identifierRequests = Collections.synchronizedMap(new HashMap<String, Request>());
162 nodeRequests.put(node, identifierRequests);
163 HighLevelCallback<RequestListResult> requestListCallback = highLevelClient.getRequests();
164 requestListCallback.addHighLevelCallbackListener(new HighLevelCallbackListener<RequestListResult>() {
166 @SuppressWarnings("synthetic-access")
167 public void gotResult(HighLevelCallback<RequestListResult> highLevelCallback) {
168 RequestListResult requestListResult;
170 requestListResult = highLevelCallback.getResult();
171 } catch (InterruptedException e) {
172 logger.log(Level.SEVERE, "getResult() blocked and was interrupted");
175 for (RequestResult requestResult: requestListResult) {
176 String identifier = requestResult.getIdentifier();
177 logger.log(Level.FINER, "got identifier: " + identifier);
178 if (identifierRequests.containsKey(identifier)) {
181 Request request = new Request(node, identifier);
182 identifierRequests.put(requestResult.getIdentifier(), request);
183 /* TODO - fill request */
184 fireRequestAdded(request);
191 // INTERFACE NodeListener
197 public void nodeAdded(Node node) {
198 HighLevelClient highLevelClient = nodeManager.getHighLevelClient(node);
199 if (highLevelClient == null) {
200 logger.warning("got nodeAdded but no high-level client: " + node);
203 highLevelClient.addHighLevelProgressListener(this);
209 public void nodeRemoved(Node node) {
210 HighLevelClient highLevelClient = nodeManager.getHighLevelClient(node);
211 if (highLevelClient == null) {
212 logger.warning("got nodeRemoved but no high-level client: " + node);
215 highLevelClient.removeHighLevelProgressListener(this);
221 public void nodeConnected(Node node) {
222 HighLevelClient highLevelClient = nodeManager.getHighLevelClient(node);
223 if (highLevelClient == null) {
224 logger.log(Level.WARNING, "got no high-level client for node " + node);
228 highLevelClient.setWatchGlobal(true);
230 } catch (IOException e) {
231 /* ignore exception, disconnects are handled elsewhere. */
238 public void nodeConnectionFailed(Node node, Throwable cause) {
239 /* we don't care about this. */
245 public void nodeDisconnected(Node node, Throwable throwable) {
246 Map<String, Request> identifierRequests = nodeRequests.get(node);
247 if (identifierRequests == null) {
248 logger.warning("got node without request map: " + node);
251 for (Request request: identifierRequests.values()) {
252 fireRequestRemoved(request);
254 identifierRequests.clear();
258 // INTERFACE HighLevelProgressListener
262 * @see net.pterodactylus.fcp.highlevel.HighLevelProgressListener#progressReceived(HighLevelClient,
263 * String, HighLevelProgress)
265 public void progressReceived(HighLevelClient highLevelClient, String identifier, HighLevelProgress highLevelProgress) {
266 Node node = nodeManager.getNode(highLevelClient);
268 logger.warning("got high-level client without node: " + highLevelClient);
271 Map<String, Request> identifierRequests = nodeRequests.get(node);
272 if (identifierRequests == null) {
273 logger.warning("got node without request map: " + node);
274 identifierRequests = Collections.synchronizedMap(new HashMap<String, Request>());
275 nodeRequests.put(node, identifierRequests);
277 Request request = identifierRequests.get(identifier);
278 if (request == null) {
279 logger.warning("got progress for unknown request: " + identifier);
280 request = new Request(node, identifier);
281 identifierRequests.put(identifier, request);
282 fireRequestAdded(request);
284 request.setTotalBlocks(highLevelProgress.getTotalBlocks());
285 request.setRequiredBlocks(highLevelProgress.getRequiredBlocks());
286 request.setSuccessfulBlocks(highLevelProgress.getSuccessfulBlocks());
287 request.setFailedBlocks(highLevelProgress.getFailedBlocks());
288 request.setFatallyFailedBlocks(highLevelProgress.getFatallyFailedBlocks());
289 request.setTotalFinalized(highLevelProgress.isTotalFinalized());
290 fireRequestProgressed(request);