@Override
protected void registerRecovery() {
memberStateMachine.addHighAvailabilityMemberListener(
new HighAvailabilityMemberListener() {
@Override
public void masterIsElected(HighAvailabilityMemberChangeEvent event) {}
@Override
public void masterIsAvailable(HighAvailabilityMemberChangeEvent event) {
if (event.getOldState().equals(HighAvailabilityMemberState.TO_MASTER)
&& event.getNewState().equals(HighAvailabilityMemberState.MASTER)) {
doAfterRecoveryAndStartup(true);
}
}
@Override
public void slaveIsAvailable(HighAvailabilityMemberChangeEvent event) {
if (event.getOldState().equals(HighAvailabilityMemberState.TO_SLAVE)
&& event.getNewState().equals(HighAvailabilityMemberState.SLAVE)) {
doAfterRecoveryAndStartup(false);
}
}
@Override
public void instanceStops(HighAvailabilityMemberChangeEvent event) {}
private void doAfterRecoveryAndStartup(boolean isMaster) {
try {
synchronized (xaDataSourceManager) {
HighlyAvailableGraphDatabase.this.doAfterRecoveryAndStartup(isMaster);
}
} catch (Throwable throwable) {
msgLog.error("Post recovery error", throwable);
try {
memberStateMachine.stop();
} catch (Throwable throwable1) {
msgLog.warn("Could not stop", throwable1);
}
try {
memberStateMachine.start();
} catch (Throwable throwable1) {
msgLog.warn("Could not start", throwable1);
}
}
}
});
}
@Override
public void stop() throws Throwable {
memberStateMachine.removeHighAvailabilityMemberListener(listener);
}
@Override
public void start() throws Throwable {
memberStateMachine.addHighAvailabilityMemberListener(listener);
}
public boolean isMaster() {
return memberStateMachine.getCurrentState() == HighAvailabilityMemberState.MASTER;
}
public String getInstanceState() {
return memberStateMachine.getCurrentState().name();
}