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#ifndef _QmfEngineValueImpl_
#define _QmfEngineValueImpl_
/*
* 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 <qmf/engine/Value.h>
#include <qmf/engine/ObjectIdImpl.h>
#include <qmf/engine/Object.h>
#include <qpid/framing/Buffer.h>
#include <string>
#include <string.h>
#include <map>
#include <vector>
#include <boost/shared_ptr.hpp>
namespace qpid {
namespace framing {
class FieldTable;
class List;
}
}
namespace qmf {
namespace engine {
// TODO: set valid flag on all value settors
// TODO: add a modified flag and accessors
struct ValueImpl {
const Typecode typecode;
bool valid;
ObjectId refVal;
std::string stringVal;
std::auto_ptr<Object> objectVal;
std::map<std::string, Value> mapVal;
std::vector<Value> vectorVal;
Typecode arrayTypecode;
union {
uint32_t u32;
uint64_t u64;
int32_t s32;
int64_t s64;
bool boolVal;
float floatVal;
double doubleVal;
uint8_t uuidVal[16];
} value;
ValueImpl(const ValueImpl& from) :
typecode(from.typecode), valid(from.valid), refVal(from.refVal), stringVal(from.stringVal),
objectVal(from.objectVal.get() ? new Object(*(from.objectVal)) : 0),
mapVal(from.mapVal), vectorVal(from.vectorVal), arrayTypecode(from.arrayTypecode),
value(from.value) {}
ValueImpl(Typecode t, Typecode at);
ValueImpl(Typecode t, qpid::framing::Buffer& b);
ValueImpl(Typecode t);
static Value* factory(Typecode t, qpid::framing::Buffer& b);
static Value* factory(Typecode t);
~ValueImpl();
void encode(qpid::framing::Buffer& b) const;
uint32_t encodedSize() const;
Typecode getType() const { return typecode; }
bool isNull() const { return !valid; }
void setNull() { valid = false; }
bool isObjectId() const { return typecode == TYPE_REF; }
const ObjectId& asObjectId() const { return refVal; }
void setObjectId(const ObjectId& o) { refVal = o; } // TODO
bool isUint() const { return typecode >= TYPE_UINT8 && typecode <= TYPE_UINT32; }
uint32_t asUint() const { return value.u32; }
void setUint(uint32_t val) { value.u32 = val; }
bool isInt() const { return typecode >= TYPE_INT8 && typecode <= TYPE_INT32; }
int32_t asInt() const { return value.s32; }
void setInt(int32_t val) { value.s32 = val; }
bool isUint64() const { return typecode == TYPE_UINT64 || typecode == TYPE_DELTATIME; }
uint64_t asUint64() const { return value.u64; }
void setUint64(uint64_t val) { value.u64 = val; }
bool isInt64() const { return typecode == TYPE_INT64 || typecode == TYPE_ABSTIME; }
int64_t asInt64() const { return value.s64; }
void setInt64(int64_t val) { value.s64 = val; }
bool isString() const { return typecode == TYPE_SSTR || typecode == TYPE_LSTR; }
const char* asString() const { return stringVal.c_str(); }
void setString(const char* val) { stringVal = val; }
bool isBool() const { return typecode == TYPE_BOOL; }
bool asBool() const { return value.boolVal; }
void setBool(bool val) { value.boolVal = val; }
bool isFloat() const { return typecode == TYPE_FLOAT; }
float asFloat() const { return value.floatVal; }
void setFloat(float val) { value.floatVal = val; }
bool isDouble() const { return typecode == TYPE_DOUBLE; }
double asDouble() const { return value.doubleVal; }
void setDouble(double val) { value.doubleVal = val; }
bool isUuid() const { return typecode == TYPE_UUID; }
const uint8_t* asUuid() const { return value.uuidVal; }
void setUuid(const uint8_t* val) { ::memcpy(value.uuidVal, val, 16); }
bool isObject() const { return typecode == TYPE_OBJECT; }
Object* asObject() const { return objectVal.get(); }
void setObject(Object* val) { objectVal.reset(val); }
bool isMap() const { return typecode == TYPE_MAP; }
bool keyInMap(const char* key) const;
Value* byKey(const char* key);
const Value* byKey(const char* key) const;
void deleteKey(const char* key);
void insert(const char* key, Value* val);
uint32_t keyCount() const { return mapVal.size(); }
const char* key(uint32_t idx) const;
bool isList() const { return typecode == TYPE_LIST; }
uint32_t listItemCount() const { return vectorVal.size(); }
Value* listItem(uint32_t idx) { return idx < listItemCount() ? &vectorVal[idx] : 0; }
const Value* listItem(uint32_t idx) const { return idx < listItemCount() ? &vectorVal[idx] : 0; }
void appendToList(Value* val) { vectorVal.push_back(*val); }
void deleteListItem(uint32_t idx) { if (idx < listItemCount()) vectorVal.erase(vectorVal.begin()+idx); }
bool isArray() const { return typecode == TYPE_ARRAY; }
Typecode arrayType() const { return arrayTypecode; }
uint32_t arrayItemCount() const { return 0; }
Value* arrayItem(uint32_t idx);
void appendToArray(Value* val);
void deleteArrayItem(uint32_t idx);
private:
void mapToFieldTable(qpid::framing::FieldTable& ft) const;
void initMap(const qpid::framing::FieldTable& ft);
void listToFramingList(qpid::framing::List& fl) const;
void initList(const qpid::framing::List& fl);
};
}
}
#endif
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