/
PullService.java
124 lines (105 loc) · 5.03 KB
/
PullService.java
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/*
* SymmetricDS is an open source database synchronization solution.
*
* Copyright (C) Chris Henson <chenson42@users.sourceforge.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see
* <http://www.gnu.org/licenses/>.
*/
package org.jumpmind.symmetric.service.impl;
import java.io.IOException;
import java.net.ConnectException;
import java.net.SocketException;
import java.util.List;
import org.jumpmind.symmetric.model.Node;
import org.jumpmind.symmetric.service.IClusterService;
import org.jumpmind.symmetric.service.IDataLoaderService;
import org.jumpmind.symmetric.service.INodeService;
import org.jumpmind.symmetric.service.IPullService;
import org.jumpmind.symmetric.service.IRegistrationService;
import org.jumpmind.symmetric.service.LockActionConstants;
import org.jumpmind.symmetric.transport.AuthenticationException;
import org.jumpmind.symmetric.transport.ConnectionRejectedException;
import org.jumpmind.symmetric.transport.SyncDisabledException;
import org.jumpmind.symmetric.transport.TransportException;
public class PullService extends AbstractOfflineDetectorService implements IPullService {
private INodeService nodeService;
private IDataLoaderService dataLoaderService;
private IRegistrationService registrationService;
private IClusterService clusterService;
synchronized public boolean pullData() {
boolean dataPulled = false;
if (clusterService.lock(LockActionConstants.PULL)) {
try {
// register if we haven't already been registered
registrationService.registerWithServer();
List<Node> nodes = nodeService.findNodesToPull();
if (nodes != null && nodes.size() > 0) {
for (Node node : nodes) {
String nodeName = " for " + node;
try {
log.debug("DataPulling", nodeName);
if (dataLoaderService.loadData(node, nodeService.findIdentity())) {
log.info("DataPulled", nodeName);
dataPulled = true;
} else {
log.debug("DataPullingFailed", nodeName);
}
} catch (ConnectException ex) {
log.warn("TransportFailedConnectionUnavailable",
(node.getSyncUrl() == null ? parameterService.getRegistrationUrl() : node
.getSyncUrl()));
fireOffline(ex, node);
} catch (ConnectionRejectedException ex) {
log.warn("TransportFailedConnectionBusy");
fireOffline(ex, node);
} catch (AuthenticationException ex) {
log.warn("AuthenticationFailed");
fireOffline(ex, node);
} catch (SyncDisabledException ex) {
log.warn("SyncDisabled");
fireOffline(ex, node);
} catch (SocketException ex) {
log.warn("Message", ex.getMessage());
fireOffline(ex, node);
} catch (TransportException ex) {
log.warn("Message", ex.getMessage());
fireOffline(ex, node);
} catch (IOException ex) {
log.error(ex);
fireOffline(ex, node);
}
}
}
} finally {
clusterService.unlock(LockActionConstants.PULL);
}
} else {
log.info("DataPullingFailedLock");
}
return dataPulled;
}
public void setNodeService(INodeService nodeService) {
this.nodeService = nodeService;
}
public void setDataLoaderService(IDataLoaderService dataLoaderService) {
this.dataLoaderService = dataLoaderService;
}
public void setRegistrationService(IRegistrationService registrationService) {
this.registrationService = registrationService;
}
public void setClusterService(IClusterService clusterService) {
this.clusterService = clusterService;
}
}