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/*
* Copyright 2013 gitblit.com.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.gitblit.manager;
import java.io.IOException;
import java.text.MessageFormat;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.gitblit.Constants.FederationToken;
import com.gitblit.GitBlit;
import com.gitblit.IStoredSettings;
import com.gitblit.Keys;
import com.gitblit.fanout.FanoutNioService;
import com.gitblit.fanout.FanoutService;
import com.gitblit.fanout.FanoutSocketService;
import com.gitblit.git.GitDaemon;
import com.gitblit.models.FederationModel;
import com.gitblit.service.FederationPullService;
import com.gitblit.utils.StringUtils;
import com.gitblit.utils.TimeUtils;
/**
* Services manager manages long-running services/processes that either have no
* direct relation to other managers OR require really high-level manager
* integration (i.e. a Gitblit instance).
*
* @author James Moger
*
*/
public class ServicesManager implements IServicesManager {
private final Logger logger = LoggerFactory.getLogger(getClass());
private final ScheduledExecutorService scheduledExecutor = Executors.newScheduledThreadPool(5);
private final IStoredSettings settings;
private final GitBlit gitblit;
private FanoutService fanoutService;
private GitDaemon gitDaemon;
public ServicesManager(GitBlit gitblit) {
this.settings = gitblit.getSettings();
this.gitblit = gitblit;
}
@Override
public ServicesManager start() {
configureFederation();
configureFanout();
configureGitDaemon();
return this;
}
@Override
public ServicesManager stop() {
scheduledExecutor.shutdownNow();
if (fanoutService != null) {
fanoutService.stop();
}
if (gitDaemon != null) {
gitDaemon.stop();
}
return this;
}
protected void configureFederation() {
boolean validPassphrase = true;
String passphrase = settings.getString(Keys.federation.passphrase, "");
if (StringUtils.isEmpty(passphrase)) {
logger.info("Federation passphrase is blank! This server can not be PULLED from.");
validPassphrase = false;
}
if (validPassphrase) {
// standard tokens
for (FederationToken tokenType : FederationToken.values()) {
logger.info(MessageFormat.format("Federation {0} token = {1}", tokenType.name(),
gitblit.getFederationToken(tokenType)));
}
// federation set tokens
for (String set : settings.getStrings(Keys.federation.sets)) {
logger.info(MessageFormat.format("Federation Set {0} token = {1}", set,
gitblit.getFederationToken(set)));
}
}
// Schedule or run the federation executor
List<FederationModel> registrations = gitblit.getFederationRegistrations();
if (registrations.size() > 0) {
FederationPuller executor = new FederationPuller(registrations);
scheduledExecutor.schedule(executor, 1, TimeUnit.MINUTES);
}
}
protected void configureGitDaemon() {
int port = settings.getInteger(Keys.git.daemonPort, 0);
String bindInterface = settings.getString(Keys.git.daemonBindInterface, "localhost");
if (port > 0) {
try {
gitDaemon = new GitDaemon(gitblit);
gitDaemon.start();
} catch (IOException e) {
gitDaemon = null;
logger.error(MessageFormat.format("Failed to start Git Daemon on {0}:{1,number,0}", bindInterface, port), e);
}
} else {
logger.info("Git Daemon is disabled.");
}
}
protected void configureFanout() {
// startup Fanout PubSub service
if (settings.getInteger(Keys.fanout.port, 0) > 0) {
String bindInterface = settings.getString(Keys.fanout.bindInterface, null);
int port = settings.getInteger(Keys.fanout.port, FanoutService.DEFAULT_PORT);
boolean useNio = settings.getBoolean(Keys.fanout.useNio, true);
int limit = settings.getInteger(Keys.fanout.connectionLimit, 0);
if (useNio) {
if (StringUtils.isEmpty(bindInterface)) {
fanoutService = new FanoutNioService(port);
} else {
fanoutService = new FanoutNioService(bindInterface, port);
}
} else {
if (StringUtils.isEmpty(bindInterface)) {
fanoutService = new FanoutSocketService(port);
} else {
fanoutService = new FanoutSocketService(bindInterface, port);
}
}
fanoutService.setConcurrentConnectionLimit(limit);
fanoutService.setAllowAllChannelAnnouncements(false);
fanoutService.start();
} else {
logger.info("Fanout PubSub service is disabled.");
}
}
private class FederationPuller extends FederationPullService {
public FederationPuller(FederationModel registration) {
super(Arrays.asList(registration));
}
public FederationPuller(List<FederationModel> registrations) {
super(registrations);
}
@Override
public void reschedule(FederationModel registration) {
// schedule the next pull
int mins = TimeUtils.convertFrequencyToMinutes(registration.frequency);
registration.nextPull = new Date(System.currentTimeMillis() + (mins * 60 * 1000L));
scheduledExecutor.schedule(new FederationPuller(registration), mins, TimeUnit.MINUTES);
logger.info(MessageFormat.format(
"Next pull of {0} @ {1} scheduled for {2,date,yyyy-MM-dd HH:mm}",
registration.name, registration.url, registration.nextPull));
}
}
}
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