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#ifndef QPID_BROKER_AMQP_FILTER_H
#define QPID_BROKER_AMQP_FILTER_H
/*
*
* 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/amqp/MapReader.h"
#include "qpid/amqp/Descriptor.h"
#include "qpid/types/Variant.h"
#include <map>
#include <vector>
#include <boost/shared_ptr.hpp>
struct pn_data_t;
namespace qpid {
namespace broker {
class Exchange;
class Queue;
struct QueueSettings;
namespace amqp {
class Outgoing;
class Filter : private qpid::amqp::MapReader
{
public:
Filter();
void read(pn_data_t*);
void write(pn_data_t*);
std::string getBindingKey(boost::shared_ptr<Exchange> exchange) const;
/**
* Apply filters where source is a queue
*/
void apply(boost::shared_ptr<Outgoing> queue);
/**
* Configure subscription queue for case where source is an exchange
*/
void configure(QueueSettings&);
/**
* Bind subscription queue for case where source is an exchange
*/
void bind(boost::shared_ptr<Exchange> exchange, boost::shared_ptr<Queue> queue);
/**
* Not really the ideal place for this, but the logic is already implemented here...
*/
static void write(std::map<std::string, qpid::types::Variant> source, pn_data_t* target);
private:
struct FilterBase
{
bool described;
bool requested;
qpid::amqp::Descriptor descriptor;
std::string key;
FilterBase();
virtual ~FilterBase();
void write(pn_data_t*);
virtual void writeValue(pn_data_t*) = 0;
void setDescriptor(const qpid::amqp::Descriptor&);
};
struct StringFilter : FilterBase
{
std::string value;
void writeValue(pn_data_t*);
};
struct MapFilter : FilterBase
{
typedef std::map<std::string, qpid::types::Variant> ValueType;
ValueType value;
void writeValue(pn_data_t*);
};
void onStringValue(const qpid::amqp::CharSequence& key, const qpid::amqp::CharSequence& value, const qpid::amqp::Descriptor* descriptor);
void onNullValue(const qpid::amqp::CharSequence&, const qpid::amqp::Descriptor*);
void onBooleanValue(const qpid::amqp::CharSequence&, bool, const qpid::amqp::Descriptor*);
void onUByteValue(const qpid::amqp::CharSequence&, uint8_t, const qpid::amqp::Descriptor*);
void onUShortValue(const qpid::amqp::CharSequence&, uint16_t, const qpid::amqp::Descriptor*);
void onUIntValue(const qpid::amqp::CharSequence&, uint32_t, const qpid::amqp::Descriptor*);
void onULongValue(const qpid::amqp::CharSequence&, uint64_t, const qpid::amqp::Descriptor*);
void onByteValue(const qpid::amqp::CharSequence&, int8_t, const qpid::amqp::Descriptor*);
void onShortValue(const qpid::amqp::CharSequence&, int16_t, const qpid::amqp::Descriptor*);
void onIntValue(const qpid::amqp::CharSequence&, int32_t, const qpid::amqp::Descriptor*);
void onLongValue(const qpid::amqp::CharSequence&, int64_t, const qpid::amqp::Descriptor*);
void onFloatValue(const qpid::amqp::CharSequence&, float, const qpid::amqp::Descriptor*);
void onDoubleValue(const qpid::amqp::CharSequence&, double, const qpid::amqp::Descriptor*);
bool onStartMapValue(const qpid::amqp::CharSequence& key, uint32_t count, const qpid::amqp::Descriptor* descriptor);
void onEndMapValue(const qpid::amqp::CharSequence& key, uint32_t count, const qpid::amqp::Descriptor* descriptor);
void setFilter(StringFilter&, const StringFilter&);
bool hasSubjectFilter() const;
std::string getSubjectFilter() const;
bool hasSelectorFilter() const;
std::string getSelectorFilter() const;
bool setDefaultSubjectFilter(bool wildcards=false);
bool setDefaultSubjectFilter(const qpid::amqp::Descriptor& descriptor, const std::string& value=std::string());
bool adjustDirectFilter();
void setDefaultHeadersFilter();
void setDefaultXQueryFilter();
StringFilter subjectFilter;
StringFilter selectorFilter;
StringFilter xqueryFilter;
MapFilter headersFilter;
std::vector<FilterBase*> active;
bool inHeadersMap;
};
}}} // namespace qpid::broker::amqp
#endif /*!QPID_BROKER_AMQP_FILTER_H*/
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