Java Status.Event方法代码示例

import com.cloud.host.Status; //导入方法依赖的package包/类
private void disconnectInternal(final long hostId, final Status.Event event, final boolean invstigate) {
    final AgentAttache attache = findAttache(hostId);

    if (attache != null) {
        if (!invstigate) {
            disconnectWithoutInvestigation(attache, event);
        } else {
            disconnectWithInvestigation(attache, event);
        }
    } else {
        /* Agent is still in connecting process, don't allow to disconnect right away */
        if (tapLoadingAgents(hostId, TapAgentsAction.Contains)) {
            s_logger.info("Host " + hostId + " is being loaded so no disconnects needed.");
            return;
        }

        final HostVO host = _hostDao.findById(hostId);
        if (host != null && host.getRemoved() == null) {
            disconnectAgent(host, event, _nodeId);
        }
    }
}
 

import com.cloud.host.Status; //导入方法依赖的package包/类
@Override
public boolean agentStatusTransitTo(final HostVO host, final Status.Event e, final long msId) {
    try {
        _agentStatusLock.lock();
        if (status_logger.isDebugEnabled()) {
            final ResourceState state = host.getResourceState();
            final StringBuilder msg = new StringBuilder("Transition:");
            msg.append("[Resource state = ").append(state);
            msg.append(", Agent event = ").append(e.toString());
            msg.append(", Host id = ").append(host.getId()).append(", name = " + host.getName()).append("]");
            status_logger.debug(msg.toString());
        }

        host.setManagementServerId(msId);
        try {
            return _statusStateMachine.transitTo(host, e, host.getId(), _hostDao);
        } catch (final NoTransitionException e1) {
            status_logger.debug("Cannot transit agent status with event " + e + " for host " + host.getId() + ", name=" + host.getName() +
                    ", mangement server id is " + msId);
            throw new CloudRuntimeException("Cannot transit agent status with event " + e + " for host " + host.getId() + ", mangement server id is " + msId + "," +
                    e1.getMessage());
        }
    } finally {
        _agentStatusLock.unlock();
    }
}
 

import com.cloud.host.Status; //导入方法依赖的package包/类
protected boolean handleDisconnect(final AgentAttache agent, final Status.Event event, final boolean investigate, final boolean broadcast, final boolean removeAgent) {
    final boolean res;
    if (!investigate) {
        res = super.handleDisconnectWithoutInvestigation(agent, event, true, removeAgent);
    } else {
        res = super.handleDisconnectWithInvestigation(agent, event);
    }

    if (res) {
        if (broadcast) {
            notifyNodesInCluster(agent);
        }
        return true;
    } else {
        return false;
    }
}
 

import com.cloud.host.Status; //导入方法依赖的package包/类
public boolean disconnectAgent(final HostVO host, final Status.Event e, final long msId) {
    host.setDisconnectedOn(new Date());
    if (e.equals(Status.Event.Remove)) {
        host.setGuid(null);
        host.setClusterId(null);
    }

    return agentStatusTransitTo(host, e, msId);
}
 

import com.cloud.host.Status; //导入方法依赖的package包/类
protected boolean handleDisconnectWithoutInvestigation(final AgentAttache attache, final Status.Event event, final boolean transitState, final boolean removeAgent) {
    final long hostId = attache.getId();

    s_logger.info("Host " + hostId + " is disconnecting with event " + event);
    Status nextStatus = null;
    final HostVO host = _hostDao.findById(hostId);
    if (host == null) {
        s_logger.warn("Can't find host with " + hostId);
        nextStatus = Status.Removed;
    } else {
        final Status currentStatus = host.getStatus();
        if (currentStatus == Status.Down || currentStatus == Status.Alert || currentStatus == Status.Removed) {
            if (s_logger.isDebugEnabled()) {
                s_logger.debug("Host " + hostId + " is already " + currentStatus);
            }
            nextStatus = currentStatus;
        } else {
            try {
                nextStatus = currentStatus.getNextStatus(event);
            } catch (final NoTransitionException e) {
                final String err = "Cannot find next status for " + event + " as current status is " + currentStatus + " for agent " + hostId;
                s_logger.debug(err);
                throw new CloudRuntimeException(err);
            }

            if (s_logger.isDebugEnabled()) {
                s_logger.debug("The next status of agent " + hostId + "is " + nextStatus + ", current status is " + currentStatus);
            }
        }
    }

    if (s_logger.isDebugEnabled()) {
        s_logger.debug("Deregistering link for " + hostId + " with state " + nextStatus);
    }

    removeAgent(attache, nextStatus);
    // update the DB
    if (host != null && transitState) {
        disconnectAgent(host, event, _nodeId);
    }

    return true;
}
 

import com.cloud.host.Status; //导入方法依赖的package包/类
protected void disconnectWithoutInvestigation(final AgentAttache attache, final Status.Event event) {
    _executor.submit(new DisconnectTask(attache, event, false));
}
 

import com.cloud.host.Status; //导入方法依赖的package包/类
public void disconnectWithInvestigation(final long hostId, final Status.Event event) {
    disconnectInternal(hostId, event, true);
}
 

import com.cloud.host.Status; //导入方法依赖的package包/类
DisconnectTask(final AgentAttache attache, final Status.Event event, final boolean investigate) {
    _attache = attache;
    _event = event;
    _investigate = investigate;
}
 

import com.cloud.host.Status; //导入方法依赖的package包/类
@Override
protected boolean handleDisconnectWithInvestigation(final AgentAttache attache, final Status.Event event) {
    return handleDisconnect(attache, event, true, true, true);
}
 

import com.cloud.host.Status; //导入方法依赖的package包/类
@Override
protected boolean handleDisconnectWithoutInvestigation(final AgentAttache attache, final Status.Event event, final boolean transitState, final boolean removeAgent) {
    return handleDisconnect(attache, event, false, true, removeAgent);
}
 

import com.cloud.host.Status; //导入方法依赖的package包/类
public boolean agentStatusTransitTo(HostVO host, Status.Event e, long msId); 

import com.cloud.host.Status; //导入方法依赖的package包/类
void disconnectWithoutInvestigation(long hostId, Status.Event event);