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First clean of Moquette's channel abstraction to user Netty's one

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This commit is contained in:
andsel
2016-01-24 19:21:24 +01:00
parent c7e82497dd
commit beb556c73c
6 changed files with 60 additions and 50 deletions
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broker/src/main/java/io/moquette/spi/impl/ProtocolProcessor.java
+33 -23
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@@ -47,6 +47,9 @@ import io.moquette.proto.messages.SubAckMessage;
import io.moquette.proto.messages.SubscribeMessage;
import io.moquette.proto.messages.UnsubAckMessage;
import io.moquette.proto.messages.UnsubscribeMessage;
import io.netty.channel.Channel;
import io.netty.channel.ChannelPipeline;
import io.netty.handler.timeout.IdleStateHandler;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -133,14 +136,14 @@ public class ProtocolProcessor {
m_sessionsStore = sessionsStore;
}
public void processConnect(ServerChannel session, ConnectMessage msg) {
public void processConnect(Channel session, ConnectMessage msg) {
LOG.debug("CONNECT for client <{}>", msg.getClientID());
if (msg.getProtocolVersion() != VERSION_3_1 && msg.getProtocolVersion() != VERSION_3_1_1) {
ConnAckMessage badProto = new ConnAckMessage();
badProto.setReturnCode(ConnAckMessage.UNNACEPTABLE_PROTOCOL_VERSION);
LOG.warn("processConnect sent bad proto ConnAck");
session.write(badProto);
session.close(false);
session.close();
return;
}
@@ -165,7 +168,7 @@ public class ProtocolProcessor {
failedCredentials(session);
return;
}
session.setAttribute(NettyChannel.ATTR_KEY_USERNAME, msg.getUsername());
session.attr(NettyChannel.ATTR_KEY_USERNAME).set(msg.getUsername());
} else if (!this.allowAnonymous) {
failedCredentials(session);
return;
@@ -175,11 +178,11 @@ public class ProtocolProcessor {
if (m_clientIDs.containsKey(msg.getClientID())) {
LOG.info("Found an existing connection with same client ID <{}>, forcing to close", msg.getClientID());
//clean the subscriptions if the old used a cleanSession = true
ServerChannel oldSession = m_clientIDs.get(msg.getClientID()).session;
Channel oldSession = m_clientIDs.get(msg.getClientID()).session;
ClientSession oldClientSession = m_sessionsStore.sessionForClient(msg.getClientID());
oldClientSession.disconnect();
oldSession.setAttribute(NettyChannel.ATTR_KEY_SESSION_STOLEN, true);
oldSession.close(false);
oldSession.attr(NettyChannel.ATTR_KEY_SESSION_STOLEN).set(true);
oldSession.close();
LOG.debug("Existing connection with same client ID <{}>, forced to close", msg.getClientID());
}
@@ -188,13 +191,13 @@ public class ProtocolProcessor {
int keepAlive = msg.getKeepAlive();
LOG.debug("Connect with keepAlive {} s", keepAlive);
session.setAttribute(NettyChannel.ATTR_KEY_KEEPALIVE, keepAlive);
session.setAttribute(NettyChannel.ATTR_KEY_CLEANSESSION, msg.isCleanSession());
session.attr(NettyChannel.ATTR_KEY_KEEPALIVE).set(keepAlive);
session.attr(NettyChannel.ATTR_KEY_CLEANSESSION).set(msg.isCleanSession());
//used to track the client in the subscription and publishing phases.
session.setAttribute(NettyChannel.ATTR_KEY_CLIENTID, msg.getClientID());
session.attr(NettyChannel.ATTR_KEY_CLIENTID).set(msg.getClientID());
LOG.debug("Connect create session <{}>", session);
session.setIdleTime(Math.round(keepAlive * 1.5f));
setIdleTime(session.pipeline(), Math.round(keepAlive * 1.5f));
//Handle will flag
if (msg.isWillFlag()) {
@@ -234,11 +237,17 @@ public class ProtocolProcessor {
// LOG.info("CONNECT clients descriptors {}", m_clientIDs);
}
private void failedCredentials(ServerChannel session) {
private void setIdleTime(ChannelPipeline pipeline, int idleTime) {
if (pipeline.names().contains("idleStateHandler")) {
pipeline.remove("idleStateHandler");
}
pipeline.addFirst("idleStateHandler", new IdleStateHandler(0, 0, idleTime));
}
private void failedCredentials(Channel session) {
ConnAckMessage okResp = new ConnAckMessage();
okResp.setReturnCode(ConnAckMessage.BAD_USERNAME_OR_PASSWORD);
session.write(okResp);
session.close(false);
}
/**
@@ -289,12 +298,12 @@ public class ProtocolProcessor {
return pub;
}
public void processPublish(ServerChannel session, PublishMessage msg) {
public void processPublish(Channel session, PublishMessage msg) {
LOG.trace("PUB --PUBLISH--> SRV executePublish invoked with {}", msg);
String clientID = (String) session.getAttribute(NettyChannel.ATTR_KEY_CLIENTID);
String clientID = (String) session.attr(NettyChannel.ATTR_KEY_CLIENTID).get();
final String topic = msg.getTopicName();
//check if the topic can be wrote
String user = (String) session.getAttribute(NettyChannel.ATTR_KEY_USERNAME);
String user = (String) session.attr(NettyChannel.ATTR_KEY_USERNAME).get();
if (!m_authorizator.canWrite(topic, user, clientID)) {
LOG.debug("topic {} doesn't have write credentials", topic);
return;
@@ -518,10 +527,10 @@ public class ProtocolProcessor {
// could happen is not an error HANDLE IT
throw new RuntimeException(String.format("Can't find a ConnectionDescriptor for client <%s> in cache <%s>", clientId, m_clientIDs));
}
ServerChannel session = m_clientIDs.get(clientId).session;
Channel session = m_clientIDs.get(clientId).session;
LOG.debug("Session for clientId {} is {}", clientId, session);
String user = (String) session.getAttribute(NettyChannel.ATTR_KEY_USERNAME);
String user = (String) session.attr(NettyChannel.ATTR_KEY_USERNAME).get();
if (!m_authorizator.canRead(topic, user, clientId)) {
LOG.debug("topic {} doesn't have read credentials", topic);
return;
@@ -632,7 +641,7 @@ public class ProtocolProcessor {
LOG.info("DISCONNECT client <{}> finished", clientID, cleanSession);
}
public void processConnectionLost(String clientID, boolean sessionStolen, NettyChannel channel) {
public void processConnectionLost(String clientID, boolean sessionStolen, Channel channel) {
ConnectionDescriptor oldConnDescr = new ConnectionDescriptor(clientID, channel, true);
m_clientIDs.remove(clientID, oldConnDescr);
//If already removed a disconnect message was already processed for this clientID
@@ -654,10 +663,11 @@ public class ProtocolProcessor {
* Remove the clientID from topic subscription, if not previously subscribed,
* doesn't reply any error
*/
public void processUnsubscribe(ServerChannel session, UnsubscribeMessage msg) {
public void processUnsubscribe(Channel session, UnsubscribeMessage msg) {
List<String> topics = msg.topicFilters();
int messageID = msg.getMessageID();
String clientID = (String) session.getAttribute(NettyChannel.ATTR_KEY_CLIENTID);
String clientID = (String) session.attr(NettyChannel.ATTR_KEY_CLIENTID).get();
LOG.debug("UNSUBSCRIBE subscription on topics {} for clientID <{}>", topics, clientID);
ClientSession clientSession = m_sessionsStore.sessionForClient(clientID);
@@ -666,7 +676,7 @@ public class ProtocolProcessor {
boolean validTopic = SubscriptionsStore.validate(topic);
if (!validTopic) {
//close the connection, not valid topicFilter is a protocol violation
session.close(true);
session.close();
LOG.warn("UNSUBSCRIBE found an invalid topic filter <{}> for clientID <{}>", topic, clientID);
return;
}
@@ -684,8 +694,8 @@ public class ProtocolProcessor {
session.write(ackMessage);
}
public void processSubscribe(ServerChannel session, SubscribeMessage msg) {
String clientID = (String) session.getAttribute(NettyChannel.ATTR_KEY_CLIENTID);
public void processSubscribe(Channel session, SubscribeMessage msg) {
String clientID = (String) session.attr(NettyChannel.ATTR_KEY_CLIENTID).get();
LOG.debug("SUBSCRIBE client <{}> packetID {}", clientID, msg.getMessageID());
ClientSession clientSession = m_sessionsStore.sessionForClient(clientID);