/* This file is part of VoltDB.
* Copyright (C) 2008-2017 VoltDB Inc.
*
* This file contains original code and/or modifications of original code.
* Any modifications made by VoltDB Inc. are licensed under the following
* terms and conditions:
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
/* Copyright (C) 2008
* Evan Jones
* Massachusetts Institute of Technology
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
package org.voltcore.messaging;
import java.util.*;
import org.voltcore.messaging.Mailbox;
public class MockMailbox implements Mailbox {
public static HashMap<Long, Mailbox> postoffice =
new HashMap<Long, Mailbox>();
public static void registerMailbox(long siteId, Mailbox mbox) {
postoffice.put(siteId, mbox);
}
public MockMailbox() {
for (Subject s : Subject.values()) {
m_messages.add( s.getId(), new ArrayDeque<VoltMessage>());
}
}
@Override
public void send(long HSId, VoltMessage message) {
outgoingMessages.add(new Message(HSId, message));
Mailbox dest = postoffice.get(HSId);
if (dest != null) {
message.m_sourceHSId = m_hsId;
dest.deliver(message);
}
}
@Override
public void send(long[] HSIds, VoltMessage message) {
for (int i=0; HSIds != null && i < HSIds.length; ++i) {
Mailbox dest = postoffice.get(HSIds[i]);
if (dest != null) {
message.m_sourceHSId = m_hsId;
dest.deliver(message);
}
}
}
public int getWaitingCount() {
throw new UnsupportedOperationException();
}
private static final Subject m_defaultSubjects[] = new Subject[] { Subject.SITE_FAILURE_UPDATE, Subject.DEFAULT };
@Override
public VoltMessage recv() {
return recv(m_defaultSubjects);
}
@Override
public VoltMessage recvBlocking() {
return recvBlocking(m_defaultSubjects);
}
@Override
public VoltMessage recvBlocking(long timeout) {
return recvBlocking(m_defaultSubjects, timeout);
}
@Override
public synchronized VoltMessage recv(Subject subjects[]) {
for (Subject s : subjects) {
final Queue<VoltMessage> dq = m_messages.get(s.getId());
assert(dq != null);
VoltMessage m = dq.poll();
if (m != null) {
return m;
}
}
return null;
}
@Override
public synchronized VoltMessage recvBlocking(Subject subjects[]) {
VoltMessage message = null;
while (message == null) {
for (Subject s : subjects) {
final Queue<VoltMessage> dq = m_messages.get(s.getId());
message = dq.poll();
if (message != null) {
return message;
}
}
try {
this.wait();
} catch (InterruptedException e) {
return null;
}
}
return null;
}
@Override
public synchronized VoltMessage recvBlocking(Subject subjects[], long timeout) {
VoltMessage message = null;
for (Subject s : subjects) {
final Queue<VoltMessage> dq = m_messages.get(s.getId());
message = dq.poll();
if (message != null) {
return message;
}
}
try {
this.wait(timeout);
} catch (InterruptedException e) {
return null;
}
for (Subject s : subjects) {
final Queue<VoltMessage> dq = m_messages.get(s.getId());
message = dq.poll();
if (message != null) {
return message;
}
}
return null;
}
public VoltMessage pollMessage() {
return outgoingMessages.poll().contents;
}
public boolean noSentMessages() {
return outgoingMessages.isEmpty();
}
public boolean lastEquals(long HSId) {
Message last = outgoingMessages.peekLast();
return last.HSId == HSId;
}
public boolean lastEquals(long siteId, Object contents) {
return lastEquals(siteId) && outgoingMessages.peekLast().contents == contents;
}
@Override
public void deliver(VoltMessage message) {
deliver(message, false);
}
@Override
public void deliverFront(VoltMessage message) {
deliver(message, true);
}
public void deliver(VoltMessage message, final boolean toFront) {
final Deque<VoltMessage> dq = m_messages.get(message.getSubject());
synchronized (this) {
if (toFront) {
dq.push(message);
} else {
dq.offer(message);
}
this.notify();
}
}
public VoltMessage next;
private static class Message {
public Message(long HSId, VoltMessage contents) {
this.HSId = HSId;
this.contents = contents;
}
public final long HSId;
public final VoltMessage contents;
}
final ArrayList<Deque<VoltMessage>> m_messages = new ArrayList<Deque<VoltMessage>>();
private final ArrayDeque<Message> outgoingMessages = new ArrayDeque<Message>();
private long m_hsId = 0;
@Override
public void setHSId(long hsid)
{
m_hsId = hsid;
}
@Override
public long getHSId() {
return m_hsId;
}
}