| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more contributor license |
| * agreements. See the NOTICE file distributed with this work for additional information regarding |
| * copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance with the License. You may obtain a |
| * copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the License |
| * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
| * or implied. See the License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| /** |
| * |
| */ |
| package org.apache.geode.internal.cache.tier.sockets.command; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| |
| import org.apache.geode.internal.Assert; |
| import org.apache.geode.internal.ClassPathLoader; |
| import org.apache.geode.internal.InternalDataSerializer; |
| import org.apache.geode.internal.InternalInstantiator; |
| import org.apache.geode.internal.cache.EnumListenerEvent; |
| import org.apache.geode.internal.cache.EventID; |
| import org.apache.geode.internal.cache.tier.Command; |
| import org.apache.geode.internal.cache.tier.sockets.BaseCommand; |
| import org.apache.geode.internal.cache.tier.sockets.CacheClientNotifier; |
| import org.apache.geode.internal.cache.tier.sockets.CacheServerHelper; |
| import org.apache.geode.internal.cache.tier.sockets.ClientInstantiatorMessage; |
| import org.apache.geode.internal.cache.tier.sockets.Message; |
| import org.apache.geode.internal.cache.tier.sockets.Part; |
| import org.apache.geode.internal.cache.tier.sockets.ServerConnection; |
| import org.apache.geode.internal.i18n.LocalizedStrings; |
| import org.apache.geode.internal.logging.log4j.LocalizedMessage; |
| |
| |
| public class RegisterInstantiators extends BaseCommand { |
| |
| private final static RegisterInstantiators singleton = new RegisterInstantiators(); |
| |
| public static Command getCommand() { |
| return singleton; |
| } |
| |
| private RegisterInstantiators() {} |
| |
| @Override |
| public void cmdExecute(Message clientMessage, ServerConnection serverConnection, long start) |
| throws IOException, ClassNotFoundException { |
| serverConnection.setAsTrue(REQUIRES_RESPONSE); |
| if (logger.isDebugEnabled()) { |
| logger.debug("{}: Received register instantiator request ({} parts) from {}", |
| serverConnection.getName(), clientMessage.getNumberOfParts(), |
| serverConnection.getSocketString()); |
| } |
| |
| if (!ServerConnection.allowInternalMessagesWithoutCredentials) { |
| serverConnection.getAuthzRequest(); |
| } |
| |
| int noOfParts = clientMessage.getNumberOfParts(); |
| // Assert parts |
| Assert.assertTrue((noOfParts - 1) % 3 == 0); |
| // 3 parts per instantiator and one eventId part |
| int noOfInstantiators = (noOfParts - 1) / 3; |
| |
| // retrieve eventID from the last Part |
| ByteBuffer eventIdPartsBuffer = |
| ByteBuffer.wrap(clientMessage.getPart(noOfParts - 1).getSerializedForm()); |
| long threadId = EventID.readEventIdPartsFromOptmizedByteArray(eventIdPartsBuffer); |
| long sequenceId = EventID.readEventIdPartsFromOptmizedByteArray(eventIdPartsBuffer); |
| EventID eventId = |
| new EventID(serverConnection.getEventMemberIDByteArray(), threadId, sequenceId); |
| |
| byte[][] serializedInstantiators = new byte[noOfInstantiators * 3][]; |
| boolean caughtCNFE = false; |
| Exception cnfe = null; |
| try { |
| for (int i = 0; i < noOfParts - 1; i = i + 3) { |
| |
| Part instantiatorPart = clientMessage.getPart(i); |
| serializedInstantiators[i] = instantiatorPart.getSerializedForm(); |
| String instantiatorClassName = |
| (String) CacheServerHelper.deserialize(serializedInstantiators[i]); |
| |
| Part instantiatedPart = clientMessage.getPart(i + 1); |
| serializedInstantiators[i + 1] = instantiatedPart.getSerializedForm(); |
| String instantiatedClassName = |
| (String) CacheServerHelper.deserialize(serializedInstantiators[i + 1]); |
| |
| Part idPart = clientMessage.getPart(i + 2); |
| serializedInstantiators[i + 2] = idPart.getSerializedForm(); |
| int id = idPart.getInt(); |
| |
| Class instantiatorClass = null, instantiatedClass = null; |
| try { |
| instantiatorClass = InternalDataSerializer.getCachedClass(instantiatorClassName); |
| instantiatedClass = InternalDataSerializer.getCachedClass(instantiatedClassName); |
| InternalInstantiator.register(instantiatorClass, instantiatedClass, id, true, eventId, |
| serverConnection.getProxyID()); |
| } catch (ClassNotFoundException e) { |
| // If a ClassNotFoundException is caught, store it, but continue |
| // processing other instantiators |
| caughtCNFE = true; |
| cnfe = e; |
| } |
| } |
| } catch (Exception e) { |
| logger.warn(LocalizedMessage.create(LocalizedStrings.RegisterInstantiators_BAD_CLIENT, |
| new Object[] {serverConnection.getMembershipID(), e.getLocalizedMessage()})); |
| writeException(clientMessage, e, false, serverConnection); |
| serverConnection.setAsTrue(RESPONDED); |
| } |
| |
| // If a ClassNotFoundException was caught while processing the |
| // instantiators, send it back to the client. Note: This only sends |
| // the last CNFE. |
| if (caughtCNFE) { |
| writeException(clientMessage, cnfe, false, serverConnection); |
| serverConnection.setAsTrue(RESPONDED); |
| |
| // Send the instantiators on to other clients if we hit an error |
| // due to a missing class, because they were not distributed |
| // in InternalInstantiator.register. Otherwise they will have |
| // been distributed if successfully registered. |
| ClientInstantiatorMessage clientInstantiatorMessage = |
| new ClientInstantiatorMessage(EnumListenerEvent.AFTER_REGISTER_INSTANTIATOR, |
| serializedInstantiators, serverConnection.getProxyID(), eventId); |
| |
| // Notify other clients |
| CacheClientNotifier.routeClientMessage(clientInstantiatorMessage); |
| |
| } |
| |
| // Send reply to client if necessary. If an exception occurs in the above |
| // code, then the reply has already been sent. |
| if (!serverConnection.getTransientFlag(RESPONDED)) { |
| writeReply(clientMessage, serverConnection); |
| } |
| |
| if (logger.isDebugEnabled()) { |
| logger.debug("Registered instantiators for MembershipId = {}", |
| serverConnection.getMembershipID()); |
| } |
| } |
| |
| } |