java.rmi.activation.ActivationID Java Examples

public ActivatableImpl(ActivationID id, MarshalledObject mobj)
    throws RemoteException
{
    super(id, 0);

    ClassLoader thisLoader = ActivatableImpl.class.getClassLoader();
    ClassLoader ccl = Thread.currentThread().getContextClassLoader();

    System.err.println("implLoader: " + thisLoader);
    System.err.println("ccl: " + ccl);

    /*
     * the context class loader is the ccl from when this object
     * was exported.  If the bug has been fixed, the ccl will be
     * the same as the class loader of this class.
     */
    classLoaderOk = (thisLoader == ccl);
}
 

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;
}
 

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;
}
 

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));
    }
}
 

/**
 * 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();
    }
}
 

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));
    }
}
 

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));
    }
}
 

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;
}
 

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));
    }
}
 

/**
 * 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();
    }
}
 

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;
}
 

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));
    }
}
 

/**
 * 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();
    }
}
 

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));
    }
}
 

/**
 * 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();
    }
}
 

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;
}
 

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;
}
 

public void unregisterObject(ActivationID id)
    throws ActivationException, UnknownObjectException, RemoteException
{
    checkShutdown();
    RegistryImpl.checkAccess("ActivationSystem.unregisterObject");
    getGroupEntry(id).unregisterObject(id, true);
}
 

/**
 * Returns the groupID for a given id of an object in the group.
 * Throws UnknownObjectException if the object is not registered.
 */
private ActivationGroupID getGroupID(ActivationID id)
    throws UnknownObjectException
{
    ActivationGroupID groupID = idTable.get(id);
    if (groupID != null) {
        return groupID;
    }
    throw new UnknownObjectException("unknown object: " + id);
}
 

public ActivationID registerObject(ActivationDesc desc)
    throws ActivationException, UnknownGroupException, RemoteException
{
    checkShutdown();
    // RegistryImpl.checkAccess() is done in the SameHostOnlyServerRef
    // during unmarshallCustomData and is not applicable to local access.
    ActivationGroupID groupID = desc.getGroupID();
    ActivationID id = new ActivationID(activatorStub);
    getGroupEntry(groupID).registerObject(id, desc, true);
    return id;
}
 

/**
 * Returns the group entry for the object's id. Throws
 * UnknownObjectException if the object is not registered or the
 * object's group is not registered.
 */
private GroupEntry getGroupEntry(ActivationID id)
    throws UnknownObjectException
{
    ActivationGroupID gid = getGroupID(id);
    GroupEntry entry = groupTable.get(gid);
    if (entry != null && !entry.removed) {
        return entry;
    }
    throw new UnknownObjectException("object's group removed");
}
 

/**
 * Construct a Unicast server remote reference to be exported
 * on the specified port.
 */
public ActivatableServerRef(ActivationID id, int port,
                            RMIClientSocketFactory csf,
                            RMIServerSocketFactory ssf)
{
    super(new LiveRef(port, csf, ssf));
    this.id = id;
}
 

/**
 * Returns the group entry for the object's id. Throws
 * UnknownObjectException if the object is not registered or the
 * object's group is not registered.
 */
private GroupEntry getGroupEntry(ActivationID id)
    throws UnknownObjectException
{
    ActivationGroupID gid = getGroupID(id);
    GroupEntry entry = groupTable.get(gid);
    if (entry != null && !entry.removed) {
        return entry;
    }
    throw new UnknownObjectException("object's group removed");
}
 

public void inactiveObject(ActivationID id)
    throws UnknownObjectException, RemoteException
{
    try {
        checkShutdown();
    } catch (ActivationException e) {
        return;
    }
    RegistryImpl.checkAccess("Activator.inactiveObject");
    getGroupEntry(id).inactiveObject(id);
}
 

/**
 * Returns the group entry for the object's id. Throws
 * UnknownObjectException if the object is not registered or the
 * object's group is not registered.
 */
private GroupEntry getGroupEntry(ActivationID id)
    throws UnknownObjectException
{
    ActivationGroupID gid = getGroupID(id);
    GroupEntry entry = groupTable.get(gid);
    if (entry != null && !entry.removed) {
        return entry;
    }
    throw new UnknownObjectException("object's group removed");
}
 

public ActivationDesc setActivationDesc(ActivationID id,
                                        ActivationDesc desc)
    throws ActivationException, UnknownObjectException, RemoteException
{
    checkShutdown();
    RegistryImpl.checkAccess("ActivationSystem.setActivationDesc");

    if (!getGroupID(id).equals(desc.getGroupID())) {
        throw new ActivationException(
            "ActivationDesc contains wrong group");
    }
    return getGroupEntry(id).setActivationDesc(id, desc, true);
}
 

private void releaseLock(ActivationID id) {
    synchronized (lockedIDs) {
        id = lockedIDs.remove(lockedIDs.indexOf(id));
    }

    synchronized (id) {
        id.notifyAll();
    }
}
 

void restartServices() {
    Iterator<ActivationID> iter = null;

    synchronized (this) {
        if (restartSet.isEmpty()) {
            return;
        }

        /*
         * Clone the restartSet so the set does not have to be locked
         * during iteration. Locking the restartSet could cause
         * deadlock if an object we are restarting caused another
         * object in this group to be activated.
         */
        iter = (new HashSet<ActivationID>(restartSet)).iterator();
    }

    while (iter.hasNext()) {
        ActivationID id = iter.next();
        try {
            activate(id, true);
        } catch (Exception e) {
            if (shuttingDown) {
                return;
            }
            System.err.println(
                getTextResource("rmid.restart.service.warning"));
            e.printStackTrace();
        }
    }
}
 

public void unregisterObject(ActivationID id)
    throws ActivationException, UnknownObjectException, RemoteException
{
    checkShutdown();
    RegistryImpl.checkAccess("ActivationSystem.unregisterObject");
    getGroupEntry(id).unregisterObject(id, true);
}
 

public void unregisterObject(ActivationID id)
    throws ActivationException, UnknownObjectException, RemoteException
{
    checkShutdown();
    // RegistryImpl.checkAccess() is done in the SameHostOnlyServerRef
    // during unmarshallCustomData and is not applicable to local access.
    getGroupEntry(id).unregisterObject(id, true);
}