| /* |
| * 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.tcp; |
| |
| import java.io.IOException; |
| import java.io.NotSerializableException; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Set; |
| |
| import org.apache.logging.log4j.Logger; |
| |
| import org.apache.geode.InternalGemFireException; |
| import org.apache.geode.annotations.Immutable; |
| import org.apache.geode.distributed.internal.DMStats; |
| import org.apache.geode.distributed.internal.DistributionMessage; |
| import org.apache.geode.distributed.internal.LonerDistributionManager.DummyDMStats; |
| import org.apache.geode.distributed.internal.ReplySender; |
| import org.apache.geode.distributed.internal.membership.InternalDistributedMember; |
| import org.apache.geode.internal.Assert; |
| import org.apache.geode.internal.logging.log4j.LogMarker; |
| import org.apache.geode.logging.internal.log4j.api.LogService; |
| |
| /** |
| * A reply sender which replies back directly to a dedicated socket socket. |
| * |
| */ |
| class DirectReplySender implements ReplySender { |
| private static final Logger logger = LogService.getLogger(); |
| |
| @Immutable |
| private static final DMStats DUMMY_STATS = new DummyDMStats(); |
| |
| private final Connection conn; |
| private boolean sentReply = false; |
| |
| public DirectReplySender(Connection connection) { |
| this.conn = connection; |
| } |
| |
| @Override |
| public Set<InternalDistributedMember> putOutgoing(DistributionMessage msg) { |
| Assert.assertTrue(!this.sentReply, "Trying to reply twice to a message"); |
| // Using an ArrayList, rather than Collections.singletonList here, because the MsgStreamer |
| // mutates the list when it has exceptions. |
| |
| // fix for bug #42199 - cancellation check |
| this.conn.getConduit().getDM().getCancelCriterion().checkCancelInProgress(null); |
| |
| if (logger.isTraceEnabled(LogMarker.DM_VERBOSE)) { |
| logger.trace(LogMarker.DM_VERBOSE, "Sending a direct reply {} to {}", msg, |
| conn.getRemoteAddress()); |
| } |
| ArrayList<Connection> conns = new ArrayList<Connection>(1); |
| conns.add(conn); |
| MsgStreamer ms = (MsgStreamer) MsgStreamer.create(conns, msg, false, DUMMY_STATS, |
| conn.getBufferPool()); |
| try { |
| ms.writeMessage(); |
| ConnectExceptions ce = ms.getConnectExceptions(); |
| if (ce != null && !ce.getMembers().isEmpty()) { |
| Assert.assertTrue(ce.getMembers().size() == 1); |
| logger.warn("Failed sending a direct reply to {}", |
| ce.getMembers().iterator().next()); |
| return Collections.singleton(ce.getMembers().iterator().next()); |
| } |
| sentReply = true; |
| return Collections.emptySet(); |
| } catch (NotSerializableException e) { |
| throw new InternalGemFireException(e); |
| } catch (IOException ex) { |
| throw new InternalGemFireException( |
| "Unknown error serializing message", ex); |
| } finally { |
| try { |
| ms.close(); |
| } catch (IOException e) { |
| throw new InternalGemFireException("Unknown error serializing message", e); |
| } |
| } |
| |
| } |
| |
| } |