/
XMLSchema.hpp
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/
XMLSchema.hpp
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/******************************************************************************
* Copyright (c) 2011, Howard Butler, hobu.inc@gmail.com
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following
* conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided
* with the distribution.
* * Neither the name of Hobu, Inc. or Flaxen Geo Consulting nor the
* names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
****************************************************************************/
#ifndef INCLUDED_XMLSCHEMA_HPP
#define INCLUDED_XMLSCHEMA_HPP
#include <pdal/pdal.hpp>
#include <pdal/Schema.hpp>
#include <pdal/Dimension.hpp>
#include <pdal/DimensionLayout.hpp>
#include <string>
#include <stdarg.h>
#include <functional>
#include <libxml/parser.h>
#include <libxml/xmlschemas.h>
#include <libxml/parser.h>
#include <libxml/tree.h>
#include <libxml/xinclude.h>
#include <libxml/xmlIO.h>
#include <libxml/encoding.h>
#include <libxml/xmlwriter.h>
#include <boost/shared_ptr.hpp>
#include <boost/concept_check.hpp>
#include <boost/function.hpp>
namespace pdal { namespace schema {
void OCISchemaGenericErrorHandler (void * ctx, const char* message, ...);
void OCISchemaStructuredErrorHandler (void * userData, xmlErrorPtr error);
class schema_error : public pdal_error
{
public:
schema_error(std::string const& msg)
: pdal_error(msg)
{}
};
class schema_loading_error : public schema_error
{
public:
schema_loading_error(std::string const& msg)
: schema_error(msg)
{}
};
class schema_writing_error : public schema_error
{
public:
schema_writing_error(std::string const& msg)
: schema_error(msg)
{}
};
class schema_validation_error : public schema_error
{
public:
schema_validation_error(std::string const& msg)
: schema_error(msg)
{}
};
class schema_parsing_error : public schema_error
{
public:
schema_parsing_error(std::string const& msg)
: schema_error(msg)
{}
};
class schema_generic_error : public schema_error
{
public:
schema_generic_error(std::string const& msg)
: schema_error(msg)
{}
};
// We're going to put all of our libxml2 primatives into shared_ptrs
// that have custom deleters that clean up after themselves so we
// have a good chance at having clean exception-safe code
typedef boost::shared_ptr<void> DocPtr;
typedef boost::shared_ptr<void> SchemaParserCtxtPtr;
typedef boost::shared_ptr<void> SchemaPtr;
typedef boost::shared_ptr<void> SchemaValidCtxtPtr;
typedef boost::shared_ptr<void> TextWriterPtr;
typedef boost::shared_ptr<void> BufferPtr;
typedef boost::shared_ptr<void> CharPtr;
class PDAL_DLL Reader
{
public:
Reader(std::string const& xml, std::string const& xmlschema);
Reader(std::istream* xml, std::istream* schema);
~Reader();
inline pdal::Schema getSchema() { return m_schema; }
protected:
void Initialize();
void Load();
Dimension::DataType GetDimensionType(std::string const& interpretation);
private:
Reader& operator=(const Reader&); // not implemented
Reader(const Reader&); // not implemented;
DocPtr m_doc;
DocPtr m_schema_doc;
SchemaParserCtxtPtr m_schema_parser_ctx;
SchemaPtr m_schema_ptr;
SchemaValidCtxtPtr m_schema_valid_ctx;
xmlParserOption m_doc_options;
void* m_global_context;
pdal::Schema m_schema;
std::string m_xml;
std::string m_xsd;
boost::uint32_t m_field_position;
};
class PDAL_DLL Writer
{
public:
Writer(pdal::Schema const& schema);
~Writer() {}
std::string getXML();
protected:
private:
Writer& operator=(const Writer&); // not implemented
Writer(const Writer&); // not implemented;
void write(TextWriterPtr w);
void writeSchema(TextWriterPtr w);
void* m_global_context;
pdal::Schema const& m_schema;
};
}} // namespaces
#endif