// -*- mode: c++; c-basic-offset:4 -*-
// This file is part of libdap, A C++ implementation of the OPeNDAP Data
// Access Protocol.
// Copyright (c) 2012 OPeNDAP, Inc.
// Author: James Gallagher <jgallagher@opendap.org>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
//
// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
#include "config.h"
#include <cassert>
#include <sstream>
#include "Byte.h" // synonymous with UInt8 and Char
#include "Int8.h"
#include "Int16.h"
#include "UInt16.h"
#include "Int32.h"
#include "UInt32.h"
#include "Int64.h"
#include "UInt64.h"
#include "Float32.h"
#include "Float64.h"
#include "Str.h"
#include "Url.h"
#include "D4StreamMarshaller.h"
#include "D4StreamUnMarshaller.h"
#include "DDS.h"
#include "util.h"
#include "parser.h"
#include "Operators.h"
#include "dods-limits.h"
#include "debug.h"
#include "InternalErr.h"
using std::cerr;
using std::endl;
namespace libdap {
/** The Int8 constructor accepts the name of the variable to be created.
@note This type is available in DAP4 only.
See http://docs.opendap.org/index.php/DAP4:_Specification_Volume_1#Atomic_Types
@param n A string containing the name of the variable to be created.
*/
Int8::Int8(const string &n) : BaseType(n, dods_int8_c, true /*is_dap4*/), d_buf(0)
{}
/** The Int8 server-side constructor accepts the name of the variable and
the dataset name from which this instance is created. This is a signed
8-bit integer and was added for DAP4; Byte and UInt8 are unsigned 8-bit
integers.
@note This integer type cannot be used with DAP2; it is only present in DAP4.
See http://docs.opendap.org/index.php/DAP4:_Specification_Volume_1#Atomic_Types.
@param n A string containing the name of the variable to be created.
@param d A string containing the name of the dataset from which this
variable is created
*/
Int8::Int8(const string &n, const string &d) : BaseType(n, d, dods_int8_c, true /*is_dap4*/), d_buf(0)
{}
Int8::Int8(const Int8 ©_from) : BaseType(copy_from)
{
d_buf = copy_from.d_buf;
}
BaseType *
Int8::ptr_duplicate()
{
return new Int8(*this);
}
Int8 &
Int8::operator=(const Int8 &rhs)
{
if (this == &rhs)
return *this;
static_cast<BaseType &>(*this) = rhs;
d_buf = rhs.d_buf;
return *this;
}
unsigned int
Int8::width(bool) const
{
return sizeof(dods_int8);
}
void
Int8::compute_checksum(Crc32 &checksum)
{
checksum.AddData(reinterpret_cast<uint8_t*>(&d_buf), sizeof(d_buf));
}
/**
* @brief Serialize an Int8
* @param m
* @param dmr Unused
* @param eval Unused
* @param filter Unused
* @exception Error is thrown if the value needs to be read and that operation fails.
*/
void
Int8::serialize(D4StreamMarshaller &m, DMR &, /*ConstraintEvaluator &,*/ bool)
{
if (!read_p())
read(); // read() throws Error
m.put_int8( d_buf ) ;
}
void
Int8::deserialize(D4StreamUnMarshaller &um, DMR &)
{
um.get_int8( d_buf ) ;
}
dods_int8
Int8::value() const
{
return d_buf;
}
bool
Int8::set_value(dods_int8 i)
{
d_buf = i;
set_read_p(true);
return true;
}
void Int8::print_val(ostream &out, string space, bool print_decl_p)
{
if (print_decl_p) {
print_decl(out, space, false);
out << " = " << (int)d_buf << ";\n";
}
else
out << (int)d_buf;
}
bool
Int8::ops(BaseType *b, int op)
{
// Get the arg's value.
if (!read_p() && !read())
throw InternalErr(__FILE__, __LINE__, "This value not read!");
// Get the second arg's value.
if (!b->read_p() && !b->read())
throw InternalErr(__FILE__, __LINE__, "This value not read!");
return d4_ops(b, op);
}
/**
* @see BaseType::d4_ops(BaseType *, int)
*/
bool Int8::d4_ops(BaseType *b, int op)
{
switch (b->type()) {
case dods_int8_c:
return Cmp<dods_int8, dods_int8>(op, d_buf, static_cast<Int8*>(b)->value());
case dods_byte_c:
return SUCmp<dods_int8, dods_byte>(op, d_buf, static_cast<Byte*>(b)->value());
case dods_int16_c:
return Cmp<dods_int8, dods_int16>(op, d_buf, static_cast<Int16*>(b)->value());
case dods_uint16_c:
return SUCmp<dods_int8, dods_uint16>(op, d_buf, static_cast<UInt16*>(b)->value());
case dods_int32_c:
return Cmp<dods_int8, dods_int32>(op, d_buf, static_cast<Int32*>(b)->value());
case dods_uint32_c:
return SUCmp<dods_int8, dods_uint32>(op, d_buf, static_cast<UInt32*>(b)->value());
case dods_int64_c:
return Cmp<dods_int8, dods_int64>(op, d_buf, static_cast<Int64*>(b)->value());
case dods_uint64_c:
return SUCmp<dods_int8, dods_uint64>(op, d_buf, static_cast<UInt64*>(b)->value());
case dods_float32_c:
return Cmp<dods_int8, dods_float32>(op, d_buf, static_cast<Float32*>(b)->value());
case dods_float64_c:
return Cmp<dods_int8, dods_float64>(op, d_buf, static_cast<Float64*>(b)->value());
case dods_str_c:
case dods_url_c:
throw Error(malformed_expr, "Relational operators can only compare compatible types (number, string).");
default:
throw Error(malformed_expr, "Relational operators only work with scalar types.");
}
}
/** @brief DAP4 to DAP2 transform
*
* Return a DAP2 'copy' of the variable. In this
* case, since Int8 doesn't have a natural representation
* in DAP2 we are going to just call it a Byte .
* Why? Because SIZE.
*
* @param root The root group that should hold this new variable. Add Group-level
* stuff here (e.g., D4Dimensions).
* @param container Add the new variable to this container.
*
* @return A pointer to the transformed variable
*/
std::vector<BaseType *> *
Int8::transform_to_dap2(AttrTable *parent_attr_table)
{
vector<BaseType *> *vec = BaseType::transform_to_dap2(parent_attr_table);
if(vec->size()!=1){
ostringstream oss;
oss << __func__ << "() - Something Bad Happened. This transform should produce only ";
oss << " a single BaseType yet it produced " << vec->size();
throw new Error(internal_error,oss.str());
}
(*vec)[0]->set_type(dods_byte_c);
return vec;
}
/**
* @brief dumps information about this object
*
* Displays the pointer value of this instance and information about this
* instance.
*
* @param strm C++ i/o stream to dump the information to
* @return void
*/
void
Int8::dump(ostream &strm) const
{
strm << DapIndent::LMarg << "Int8::dump - ("
<< (void *)this << ")" << endl ;
DapIndent::Indent() ;
BaseType::dump(strm) ;
strm << DapIndent::LMarg << "value: " << d_buf << endl ;
DapIndent::UnIndent() ;
}
} // namespace libdap