Java ActivationException类代码示例

import java.rmi.activation.ActivationException; //导入依赖的package包/类
synchronized void activeGroup(ActivationInstantiator inst,
                              long instIncarnation)
    throws ActivationException, UnknownGroupException
{
    if (incarnation != instIncarnation) {
        throw new ActivationException("invalid incarnation");
    }

    if (group != null) {
        if (group.equals(inst)) {
            return;
        } else {
            throw new ActivationException("group already active");
        }
    }

    if (child != null && status != CREATING) {
        throw new ActivationException("group not being created");
    }

    group = inst;
    status = NORMAL;
    notifyAll();
}
 

import java.rmi.activation.ActivationException; //导入依赖的package包/类
synchronized void registerObject(ActivationID id,
                                 ActivationDesc desc,
                                 boolean addRecord)
    throws UnknownGroupException, ActivationException
{
    checkRemoved();
    objects.put(id, new ObjectEntry(desc));
    if (desc.getRestartMode() == true) {
        restartSet.add(id);
    }

    // table insertion must take place before log update
    idTable.put(id, groupID);

    if (addRecord) {
        addLogRecord(new LogRegisterObject(id, desc));
    }
}
 

import java.rmi.activation.ActivationException; //导入依赖的package包/类
synchronized void unregisterObject(ActivationID id, boolean addRecord)
    throws UnknownGroupException, ActivationException
{
    ObjectEntry objEntry = getObjectEntry(id);
    objEntry.removed = true;
    objects.remove(id);
    if (objEntry.desc.getRestartMode() == true) {
        restartSet.remove(id);
    }

    // table removal must take place before log update
    idTable.remove(id);
    if (addRecord) {
        addLogRecord(new LogUnregisterObject(id));
    }
}
 

import java.rmi.activation.ActivationException; //导入依赖的package包/类
synchronized void unregisterGroup(boolean addRecord)
   throws UnknownGroupException, ActivationException
{
    checkRemoved();
    removed = true;
    for (Map.Entry<ActivationID,ObjectEntry> entry :
             objects.entrySet())
    {
        ActivationID id = entry.getKey();
        idTable.remove(id);
        ObjectEntry objEntry = entry.getValue();
        objEntry.removed = true;
    }
    objects.clear();
    restartSet.clear();
    reset();
    childGone();

    // removal should be recorded before log update
    if (addRecord) {
        addLogRecord(new LogUnregisterGroup(groupID));
    }
}
 

import java.rmi.activation.ActivationException; //导入依赖的package包/类
synchronized ActivationDesc setActivationDesc(ActivationID id,
                                              ActivationDesc desc,
                                              boolean addRecord)
    throws UnknownObjectException, UnknownGroupException,
           ActivationException
{
    ObjectEntry objEntry = getObjectEntry(id);
    ActivationDesc oldDesc = objEntry.desc;
    objEntry.desc = desc;
    if (desc.getRestartMode() == true) {
        restartSet.add(id);
    } else {
        restartSet.remove(id);
    }
    // restart information should be recorded before log update
    if (addRecord) {
        addLogRecord(new LogUpdateDesc(id, desc));
    }

    return oldDesc;
}
 

import java.rmi.activation.ActivationException; //导入依赖的package包/类
synchronized MarshalledObject<? extends Remote>
    activate(ActivationID id,
             boolean force,
             ActivationInstantiator inst)
    throws RemoteException, ActivationException
{
    MarshalledObject<? extends Remote> nstub = stub;
    if (removed) {
        throw new UnknownObjectException("object removed");
    } else if (!force && nstub != null) {
        return nstub;
    }

    nstub = inst.newInstance(id, desc);
    stub = nstub;
    /*
     * stub could be set to null by a group reset, so return
     * the newstub here to prevent returning null.
     */
    return nstub;
}
 

import java.rmi.activation.ActivationException; //导入依赖的package包/类
/**
 * Acquire the group semaphore and return a group name.  Each
 * Pstartgroup must be followed by a Vstartgroup.  The calling thread
 * will wait until there are fewer than <code>N</code> other threads
 * holding the group semaphore.  The calling thread will then acquire
 * the semaphore and return.
 */
private synchronized String Pstartgroup() throws ActivationException {
    while (true) {
        checkShutdown();
        // Wait until positive, then decrement.
        if (groupSemaphore > 0) {
            groupSemaphore--;
            return "Group-" + groupCounter++;
        }

        try {
            wait();
        } catch (InterruptedException e) {
        }
    }
}
 

import java.rmi.activation.ActivationException; //导入依赖的package包/类
/**
 * The group's <code>activeObject</code> method is called when an
 * object is exported (either by <code>Activatable</code> object
 * construction or an explicit call to
 * <code>Activatable.exportObject</code>. The group must inform its
 * <code>ActivationMonitor</code> that the object is active (via
 * the monitor's <code>activeObject</code> method) if the group
 * hasn't already done so.
 *
 * @param id the object's identifier
 * @param obj the remote object implementation
 * @exception UnknownObjectException if object is not registered
 * @exception RemoteException if call informing monitor fails
 */
public void activeObject(ActivationID id, Remote impl)
    throws ActivationException, UnknownObjectException, RemoteException
{

    try {
        acquireLock(id);
        synchronized (this) {
            if (groupInactive == true)
                throw new ActivationException("group is inactive");
        }
        if (!active.contains(id)) {
            ActiveEntry entry = new ActiveEntry(impl);
            active.put(id, entry);
            // created new entry, so inform monitor of active object
            try {
                super.activeObject(id, entry.mobj);
            } catch (RemoteException e) {
                // daemon can still find it by calling newInstance
            }
        }
    } finally {
        releaseLock(id);
        checkInactiveGroup();
    }
}
 

import java.rmi.activation.ActivationException; //导入依赖的package包/类
/**
 * The group's <code>activeObject</code> method is called when an
 * object is exported (either by <code>Activatable</code> object
 * construction or an explicit call to
 * <code>Activatable.exportObject</code>. The group must inform its
 * <code>ActivationMonitor</code> that the object is active (via
 * the monitor's <code>activeObject</code> method) if the group
 * hasn't already done so.
 *
 * @param id the object's identifier
 * @param impl the remote object implementation
 * @exception UnknownObjectException if object is not registered
 * @exception RemoteException if call informing monitor fails
 */
public void activeObject(ActivationID id, Remote impl)
    throws ActivationException, UnknownObjectException, RemoteException
{

    try {
        acquireLock(id);
        synchronized (this) {
            if (groupInactive == true)
                throw new ActivationException("group is inactive");
        }
        if (!active.contains(id)) {
            ActiveEntry entry = new ActiveEntry(impl);
            active.put(id, entry);
            // created new entry, so inform monitor of active object
            try {
                super.activeObject(id, entry.mobj);
            } catch (RemoteException e) {
                // daemon can still find it by calling newInstance
            }
        }
    } finally {
        releaseLock(id);
        checkInactiveGroup();
    }
}