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#ifndef _ManagementAgent_
#define _ManagementAgent_
/*
*
* 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.
*
*/
#include "qpid/Options.h"
#include "qpid/broker/Exchange.h"
#include "qpid/broker/Timer.h"
#include "qpid/framing/Uuid.h"
#include "qpid/sys/Mutex.h"
#include "ManagementObject.h"
#include <qpid/framing/AMQFrame.h>
#include <boost/shared_ptr.hpp>
namespace qpid {
namespace management {
class ManagementAgent
{
private:
ManagementAgent (std::string dataDir, uint16_t interval);
public:
virtual ~ManagementAgent ();
typedef boost::shared_ptr<ManagementAgent> shared_ptr;
static void enableManagement (std::string dataDir, uint16_t interval);
static shared_ptr getAgent (void);
static void shutdown (void);
void setInterval (uint16_t _interval) { interval = _interval; }
void setExchange (broker::Exchange::shared_ptr mgmtExchange,
broker::Exchange::shared_ptr directExchange);
void RegisterClass (std::string packageName,
std::string className,
uint8_t* md5Sum,
ManagementObject::writeSchemaCall_t schemaCall);
void addObject (ManagementObject::shared_ptr object,
uint64_t persistenceId = 0,
uint64_t idOffset = 10);
void clientAdded (void);
void dispatchCommand (broker::Deliverable& msg,
const std::string& routingKey,
const qpid::framing::FieldTable* args);
private:
struct Periodic : public broker::TimerTask
{
ManagementAgent& agent;
Periodic (ManagementAgent& agent, uint32_t seconds);
virtual ~Periodic ();
void fire ();
};
// Storage for tracking remote management agents, attached via the client
// management agent API.
//
struct RemoteAgent
{
std::string name;
uint64_t objIdBase;
};
// TODO: Eventually replace string with entire reply-to structure. reply-to
// currently assumes that the exchange is "amq.direct" even though it could
// in theory be specified differently.
typedef std::map<std::string, RemoteAgent> RemoteAgentMap;
typedef std::vector<std::string> ReplyToVector;
// Storage for known schema classes:
//
// SchemaClassKey -- Key elements for map lookups
// SchemaClassKeyComp -- Comparison class for SchemaClassKey
// SchemaClass -- Non-key elements for classes
//
struct SchemaClassKey
{
std::string name;
uint8_t hash[16];
};
struct SchemaClassKeyComp
{
bool operator() (const SchemaClassKey& lhs, const SchemaClassKey& rhs) const
{
if (lhs.name != rhs.name)
return lhs.name < rhs.name;
else
for (int i = 0; i < 16; i++)
if (lhs.hash[i] != rhs.hash[i])
return lhs.hash[i] < rhs.hash[i];
return false;
}
};
struct SchemaClass
{
ManagementObject::writeSchemaCall_t writeSchemaCall;
ReplyToVector remoteAgents;
SchemaClass () : writeSchemaCall(0) {}
};
typedef std::map<SchemaClassKey, SchemaClass, SchemaClassKeyComp> ClassMap;
typedef std::map<std::string, ClassMap> PackageMap;
RemoteAgentMap remoteAgents;
PackageMap packages;
ManagementObjectMap managementObjects;
static shared_ptr agent;
static bool enabled;
qpid::framing::Uuid uuid;
qpid::sys::Mutex userLock;
broker::Timer timer;
broker::Exchange::shared_ptr mExchange;
broker::Exchange::shared_ptr dExchange;
std::string dataDir;
uint16_t interval;
uint64_t nextObjectId;
uint32_t nextRemotePrefix;
# define MA_BUFFER_SIZE 65536
char inputBuffer[MA_BUFFER_SIZE];
char outputBuffer[MA_BUFFER_SIZE];
void PeriodicProcessing (void);
void EncodeHeader (qpid::framing::Buffer& buf, uint8_t opcode, uint32_t seq = 0);
bool CheckHeader (qpid::framing::Buffer& buf, uint8_t *opcode, uint32_t *seq);
void SendBuffer (qpid::framing::Buffer& buf,
uint32_t length,
broker::Exchange::shared_ptr exchange,
std::string routingKey);
void dispatchMethod (broker::Message& msg,
const std::string& routingKey,
size_t first);
void dispatchAgentCommand (broker::Message& msg);
PackageMap::iterator FindOrAddPackage (std::string name);
void AddClassLocal (PackageMap::iterator pIter,
std::string className,
uint8_t* md5Sum,
ManagementObject::writeSchemaCall_t schemaCall);
void EncodePackageIndication (qpid::framing::Buffer& buf,
PackageMap::iterator pIter);
void EncodeClassIndication (qpid::framing::Buffer& buf,
PackageMap::iterator pIter,
ClassMap::iterator cIter);
uint32_t assignPrefix (uint32_t requestedPrefix);
void sendCommandComplete (std::string replyToKey, uint32_t sequence,
uint32_t code = 0, std::string text = std::string("OK"));
void handleBrokerRequest (qpid::framing::Buffer& inBuffer, std::string replyToKey, uint32_t sequence);
void handlePackageQuery (qpid::framing::Buffer& inBuffer, std::string replyToKey, uint32_t sequence);
void handlePackageInd (qpid::framing::Buffer& inBuffer, std::string replyToKey, uint32_t sequence);
void handleClassQuery (qpid::framing::Buffer& inBuffer, std::string replyToKey, uint32_t sequence);
void handleSchemaQuery (qpid::framing::Buffer& inBuffer, std::string replyToKey, uint32_t sequence);
void handleAttachRequest (qpid::framing::Buffer& inBuffer, std::string replyToKey, uint32_t sequence);
void handleGetRequest (qpid::framing::Buffer& inBuffer, std::string replyToKey, uint32_t sequence);
};
}}
#endif /*!_ManagementAgent_*/
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