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.GetRequestResult;
32 import net.pterodactylus.fcp.highlevel.HighLevelCallback;
33 import net.pterodactylus.fcp.highlevel.HighLevelCallbackListener;
34 import net.pterodactylus.fcp.highlevel.HighLevelClient;
35 import net.pterodactylus.fcp.highlevel.HighLevelProgress;
36 import net.pterodactylus.fcp.highlevel.HighLevelProgressListener;
37 import net.pterodactylus.fcp.highlevel.PutDirRequestResult;
38 import net.pterodactylus.fcp.highlevel.PutRequestResult;
39 import net.pterodactylus.fcp.highlevel.RequestListResult;
40 import net.pterodactylus.fcp.highlevel.RequestResult;
41 import net.pterodactylus.jsite.core.Request.Type;
42 import net.pterodactylus.util.logging.Logging;
45 * The request manager keeps track of all the request on all connected nodes.
46 * The request manager is added to the {@link NodeManager} as a
47 * {@link NodeListener} so that it can fire request-removed events in case a
48 * node is disconnected.
50 * @author David ‘Bombe’ Roden <bombe@freenetproject.org>
53 public class RequestManager implements NodeListener, HighLevelProgressListener {
56 private static final Logger logger = Logging.getLogger(RequestManager.class.getName());
58 /** Request listeners. */
59 private List<RequestListener> requestListeners = Collections.synchronizedList(new ArrayList<RequestListener>());
61 /** The node manager. */
62 private NodeManager nodeManager;
64 /** Request lists for all nodes. */
65 @SuppressWarnings("unused")
66 private Map<Node, Map<String, Request>> nodeRequests = Collections.synchronizedMap(new HashMap<Node, Map<String, Request>>());
73 * Adds a request listener.
75 * @param requestListener
76 * The request listener to add
78 public void addRequestListener(RequestListener requestListener) {
79 requestListeners.add(requestListener);
83 * Removes a request listener.
85 * @param requestListener
86 * The request listener to remove
88 public void removeRequestListener(RequestListener requestListener) {
89 requestListeners.remove(requestListener);
93 * Notifies all listeners that a request was added.
96 * The request that was added
98 private void fireRequestAdded(Request request) {
99 for (RequestListener requestListener: requestListeners) {
100 requestListener.requestAdded(request);
105 * Notifies all listeners that a request progressed.
110 private void fireRequestProgressed(Request request) {
111 for (RequestListener requestListener: requestListeners) {
112 requestListener.requestProgressed(request);
117 * Notifies all listeners that a request was removed.
120 * The request that was removed
122 private void fireRequestRemoved(Request request) {
123 for (RequestListener requestListener: requestListeners) {
124 requestListener.requestRemoved(request);
133 * Sets the node manager to use.
138 public void setNodeManager(NodeManager nodeManager) {
139 this.nodeManager = nodeManager;
151 * Requests a list of all running requests from a node. This method will
152 * block until the request has been sent!
155 * The node to get all requests for
156 * @throws IOException
157 * if an I/O error occurs while communicating with the node
159 private void getRequests(final Node node) throws IOException {
160 HighLevelClient highLevelClient = nodeManager.getHighLevelClient(node);
161 if (highLevelClient == null) {
162 logger.log(Level.WARNING, "no client for node: " + node);
165 final Map<String, Request> identifierRequests = Collections.synchronizedMap(new HashMap<String, Request>());
166 nodeRequests.put(node, identifierRequests);
167 HighLevelCallback<RequestListResult> requestListCallback = highLevelClient.getRequests();
168 requestListCallback.addHighLevelCallbackListener(new HighLevelCallbackListener<RequestListResult>() {
170 @SuppressWarnings("synthetic-access")
171 public void gotResult(HighLevelCallback<RequestListResult> highLevelCallback) {
172 RequestListResult requestListResult;
174 requestListResult = highLevelCallback.getResult();
175 } catch (InterruptedException e) {
176 logger.log(Level.SEVERE, "getResult() blocked and was interrupted");
179 for (RequestResult requestResult: requestListResult) {
180 String identifier = requestResult.getIdentifier();
181 logger.log(Level.FINER, "got identifier: " + identifier);
182 Request request = identifierRequests.get(identifier);
183 if (request == null) {
184 request = new Request(node, identifier);
186 if (request.getType() == null) {
187 if (requestResult instanceof GetRequestResult) {
188 request.setType(Type.get);
189 } else if (requestResult instanceof PutRequestResult) {
190 request.setType(Type.put);
191 } else if (requestResult instanceof PutDirRequestResult) {
192 request.setType(Type.putDir);
195 if (identifierRequests.containsKey(identifier)) {
198 identifierRequests.put(requestResult.getIdentifier(), request);
199 fireRequestAdded(request);
206 // INTERFACE NodeListener
212 public void nodeAdded(Node node) {
213 HighLevelClient highLevelClient = nodeManager.getHighLevelClient(node);
214 if (highLevelClient == null) {
215 logger.warning("got nodeAdded but no high-level client: " + node);
218 highLevelClient.addHighLevelProgressListener(this);
224 public void nodeRemoved(Node node) {
225 HighLevelClient highLevelClient = nodeManager.getHighLevelClient(node);
226 if (highLevelClient == null) {
227 logger.warning("got nodeRemoved but no high-level client: " + node);
230 highLevelClient.removeHighLevelProgressListener(this);
236 public void nodeConnected(Node node) {
237 HighLevelClient highLevelClient = nodeManager.getHighLevelClient(node);
238 if (highLevelClient == null) {
239 logger.log(Level.WARNING, "got no high-level client for node " + node);
243 highLevelClient.setWatchGlobal(true);
245 } catch (IOException e) {
246 /* ignore exception, disconnects are handled elsewhere. */
253 public void nodeConnectionFailed(Node node, Throwable cause) {
254 /* we don't care about this. */
260 public void nodeDisconnected(Node node, Throwable throwable) {
261 Map<String, Request> identifierRequests = nodeRequests.get(node);
262 if (identifierRequests == null) {
263 logger.warning("got node without request map: " + node);
266 for (Request request: identifierRequests.values()) {
267 fireRequestRemoved(request);
269 identifierRequests.clear();
273 // INTERFACE HighLevelProgressListener
277 * @see net.pterodactylus.fcp.highlevel.HighLevelProgressListener#progressReceived(HighLevelClient,
278 * String, HighLevelProgress)
280 public void progressReceived(HighLevelClient highLevelClient, String identifier, HighLevelProgress highLevelProgress) {
281 Node node = nodeManager.getNode(highLevelClient);
283 logger.warning("got high-level client without node: " + highLevelClient);
286 Map<String, Request> identifierRequests = nodeRequests.get(node);
287 if (identifierRequests == null) {
288 logger.warning("got node without request map: " + node);
289 identifierRequests = Collections.synchronizedMap(new HashMap<String, Request>());
290 nodeRequests.put(node, identifierRequests);
292 Request request = identifierRequests.get(identifier);
293 if (request == null) {
294 logger.warning("got progress for unknown request: " + identifier);
295 request = new Request(node, identifier);
296 identifierRequests.put(identifier, request);
297 fireRequestAdded(request);
299 request.setTotalBlocks(highLevelProgress.getTotalBlocks());
300 request.setRequiredBlocks(highLevelProgress.getRequiredBlocks());
301 request.setSuccessfulBlocks(highLevelProgress.getSuccessfulBlocks());
302 request.setFailedBlocks(highLevelProgress.getFailedBlocks());
303 request.setFatallyFailedBlocks(highLevelProgress.getFatallyFailedBlocks());
304 request.setTotalFinalized(highLevelProgress.isTotalFinalized());
305 fireRequestProgressed(request);