/usr/include/pdal/Metadata.hpp is in libpdal-dev 1.4.0-1+b1.
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* Copyright (c) 2012, 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.
****************************************************************************/
#pragma once
#include <pdal/pdal_internal.hpp>
#include <pdal/util/Bounds.hpp>
#include <pdal/util/Utils.hpp>
#include <pdal/util/Uuid.hpp>
#include <map>
#include <memory>
#include <vector>
#include <stdint.h>
namespace pdal
{
class SpatialReference;
enum class MetadataType
{
Instance,
Array
};
class Metadata;
class MetadataNode;
class MetadataNodeImpl;
typedef std::shared_ptr<MetadataNodeImpl> MetadataNodeImplPtr;
typedef std::vector<MetadataNodeImplPtr> MetadataImplList;
typedef std::map<std::string, MetadataImplList> MetadataSubnodes;
typedef std::vector<MetadataNode> MetadataNodeList;
class PDAL_DLL MetadataNodeImpl
{
friend class MetadataNode;
private:
MetadataNodeImpl(const std::string& name) : m_kind(MetadataType::Instance)
{ m_name = name; }
MetadataNodeImpl() : m_kind(MetadataType::Instance)
{}
void makeArray(MetadataImplList& l)
{
for (auto li = l.begin(); li != l.end(); ++li)
{
MetadataNodeImplPtr node = *li;
node->m_kind = MetadataType::Array;
}
}
MetadataNodeImplPtr add(const std::string& name)
{
MetadataNodeImplPtr sub(new MetadataNodeImpl(name));
MetadataImplList& l = m_subnodes[name];
l.push_back(sub);
if (l.size() > 1)
makeArray(l);
return sub;
}
MetadataNodeImplPtr addList(const std::string& name)
{
MetadataNodeImplPtr sub(new MetadataNodeImpl(name));
MetadataImplList& l = m_subnodes[name];
l.push_back(sub);
makeArray(l);
return sub;
}
MetadataNodeImplPtr add(MetadataNodeImplPtr node)
{
MetadataImplList& l = m_subnodes[node->m_name];
l.push_back(node);
if (l.size() > 1)
makeArray(l);
return node;
}
MetadataNodeImplPtr addList(MetadataNodeImplPtr node)
{
MetadataImplList& l = m_subnodes[node->m_name];
l.push_back(node);
makeArray(l);
return node;
}
bool operator == (const MetadataNodeImpl& m) const
{
if (m_name != m.m_name || m_descrip != m.m_descrip ||
m_type != m.m_type || m_value != m.m_value)
return false;
if (m_subnodes.size() != m.m_subnodes.size())
return false;
auto mi2 = m.m_subnodes.begin();
for (auto mi = m_subnodes.begin(); mi != m_subnodes.end(); ++mi, ++mi2)
{
if (mi->first != mi2->first)
return false;
const MetadataImplList& ml = mi->second;
const MetadataImplList& ml2 = mi->second;
if (ml.size() != ml2.size())
return false;
auto li2 = ml2.begin();
for (auto li = ml.begin(); li != ml.end(); ++li, ++li2)
{
auto node1 = *li;
auto node2 = *li2;
if (!(*node1 == *node2))
return false;
}
}
return true;
}
template <typename T>
inline void setValue(const T& t);
template <std::size_t N>
inline void setValue(const char(& c)[N]);
MetadataImplList& subnodes(const std::string &name)
{
auto si = m_subnodes.find(name);
if (si != m_subnodes.end())
return si->second;
static MetadataImplList l;
return l;
}
const MetadataImplList& subnodes(const std::string& name) const
{
MetadataNodeImpl *nc_this = const_cast<MetadataNodeImpl *>(this);
return nc_this->subnodes(name);
}
MetadataType nodeType(const std::string& name) const
{
const MetadataImplList& l = subnodes(name);
if (l.size())
{
MetadataNodeImplPtr node = *l.begin();
return node->m_kind;
}
return MetadataType::Instance;
}
std::string m_name;
std::string m_descrip;
std::string m_type;
std::string m_value;
MetadataType m_kind;
MetadataSubnodes m_subnodes;
};
template <>
inline void MetadataNodeImpl::setValue(const bool& b)
{
m_type = "boolean";
m_value = b ? "true" : "false";
}
template <>
inline void MetadataNodeImpl::setValue(const std::string& s)
{
m_type = "string";
m_value = s;
}
template <>
inline void MetadataNodeImpl::setValue(const char * const & c)
{
m_type = "string";
m_value = c;
}
template <std::size_t N>
inline void MetadataNodeImpl::setValue(const char(& c)[N])
{
m_type = "string";
m_value = c;
}
template <>
inline void MetadataNodeImpl::setValue(const float& f)
{
m_type = "float";
m_value = Utils::toString(f);
}
template <>
inline void MetadataNodeImpl::setValue<double>(const double& d)
{
m_type = "double";
// Get rid of -0.
double dd = d;
if (dd == 0.0)
dd = 0.0;
m_value = Utils::toString(dd);
}
template <>
void PDAL_DLL MetadataNodeImpl::setValue(const SpatialReference& ref);
template <>
inline void MetadataNodeImpl::setValue(const BOX3D& b)
{
m_type = "bounds";
m_value = Utils::toString(b);
}
template <>
inline void MetadataNodeImpl::setValue(const unsigned char& u)
{
m_type = "nonNegativeInteger";
m_value = Utils::toString(u);
}
template <>
inline void MetadataNodeImpl::setValue(const unsigned short& u)
{
m_type = "nonNegativeInteger";
m_value = Utils::toString(u);
}
template <>
inline void MetadataNodeImpl::setValue(const unsigned int& u)
{
m_type = "nonNegativeInteger";
m_value = Utils::toString(u);
}
template <>
inline void MetadataNodeImpl::setValue(const unsigned long& u)
{
m_type = "nonNegativeInteger";
m_value = Utils::toString(u);
}
template <>
inline void MetadataNodeImpl::setValue(const unsigned long long& u)
{
m_type = "nonNegativeInteger";
m_value = Utils::toString(u);
}
template <>
inline void MetadataNodeImpl::setValue(const char& i)
{
m_type = "integer";
m_value = Utils::toString(i);
}
template <>
inline void MetadataNodeImpl::setValue(const signed char& i)
{
m_type = "integer";
m_value = Utils::toString(i);
}
template <>
inline void MetadataNodeImpl::setValue(const short& s)
{
m_type = "integer";
m_value = Utils::toString(s);
}
template <>
inline void MetadataNodeImpl::setValue(const int& i)
{
m_type = "integer";
m_value = Utils::toString(i);
}
template <>
inline void MetadataNodeImpl::setValue(const long& l)
{
m_type = "integer";
m_value = Utils::toString(l);
}
template <>
inline void MetadataNodeImpl::setValue(const long long& l)
{
m_type = "integer";
m_value = Utils::toString(l);
}
template <>
inline void MetadataNodeImpl::setValue(const Uuid& u)
{
m_type = "uuid";
m_value = u.toString();
}
class PDAL_DLL MetadataNode
{
friend class Metadata;
friend inline
bool operator == (const MetadataNode& m1, const MetadataNode& m2);
friend inline
bool operator != (const MetadataNode& m1, const MetadataNode& m2);
public:
MetadataNode() : m_impl(new MetadataNodeImpl())
{}
MetadataNode(const std::string& name) : m_impl(new MetadataNodeImpl(name))
{}
MetadataNode add(const std::string& name)
{ return MetadataNode(m_impl->add(name)); }
MetadataNode addList(const std::string& name)
{ return MetadataNode(m_impl->addList(name)); }
MetadataNode clone(const std::string& name) const
{
MetadataNode node;
node.m_impl.reset(new MetadataNodeImpl(*m_impl));
node.m_impl->m_name = name;
return node;
}
MetadataNode add(MetadataNode node)
{ return MetadataNode(m_impl->add(node.m_impl)); }
MetadataNode addList(MetadataNode node)
{ return MetadataNode(m_impl->addList(node.m_impl)); }
MetadataNode addEncoded(const std::string& name,
const unsigned char *buf, size_t size,
const std::string& descrip = std::string())
{
MetadataNodeImplPtr impl = m_impl->add(name);
impl->setValue(Utils::base64_encode(buf, size));
impl->m_type = "base64Binary";
impl->m_descrip = descrip;
return MetadataNode(impl);
}
MetadataNode addListEncoded(const std::string& name,
const unsigned char *buf, size_t size,
const std::string& descrip = std::string())
{
MetadataNodeImplPtr impl = m_impl->addList(name);
impl->setValue(Utils::base64_encode(buf, size));
impl->m_type = "base64Binary";
impl->m_descrip = descrip;
return MetadataNode(impl);
}
MetadataNode addWithType(const std::string& name, const std::string& value,
const std::string& type, const std::string& descrip)
{
MetadataNodeImplPtr impl = m_impl->add(name);
impl->m_type = type;
impl->m_value = value;
impl->m_descrip = descrip;
return MetadataNode(impl);
}
template<typename T>
MetadataNode add(const std::string& name, const T& value,
const std::string& descrip = std::string())
{
MetadataNodeImplPtr impl = m_impl->add(name);
impl->setValue(value);
impl->m_descrip = descrip;
return MetadataNode(impl);
}
template<typename T>
MetadataNode addList(const std::string& name, const T& value,
const std::string& descrip = std::string())
{
MetadataNodeImplPtr impl = m_impl->addList(name);
impl->setValue(value);
impl->m_descrip = descrip;
return MetadataNode(impl);
}
template<typename T>
MetadataNode addOrUpdate(const std::string& lname, const T& value)
{
if (m_impl->nodeType(lname) == MetadataType::Array)
throw pdal_error("Can't call addOrUpdate() on subnode list.");
MetadataImplList& l = m_impl->subnodes(lname);
if (l.empty())
return add(lname, value);
MetadataNodeImplPtr impl = *l.begin();
impl->setValue(value);
return MetadataNode(impl);
}
template<typename T>
MetadataNode addOrUpdate(const std::string& lname, const T& value,
const std::string& descrip)
{
MetadataNode m = addOrUpdate(lname, value);
m_impl->m_descrip = descrip;
return m;
}
std::string type() const
{ return m_impl->m_type; }
MetadataType kind() const
{ return m_impl->m_kind; }
std::string name() const
{ return m_impl->m_name; }
template<typename T>
T value() const
{
T t;
if (m_impl->m_type == "base64Binary")
{
std::vector<uint8_t> encVal =
Utils::base64_decode(m_impl->m_value);
encVal.resize(sizeof(T));
memcpy(&t, encVal.data(), sizeof(T));
}
else
{
if (!Utils::fromString<T>(m_impl->m_value, t))
{
// Static to get default initialization.
static T t2;
std::cerr << "Error converting metadata [" << name() <<
"] = " << m_impl->m_value << " to type " <<
Utils::typeidName<T>() << " -- return default initialized.";
t = t2;
}
}
return t;
}
std::string value() const
{ return m_impl->m_value; }
std::string jsonValue() const
{
if (m_impl->m_type == "json")
return value();
std::string v(Utils::escapeJSON(value()));
if (m_impl->m_type == "string" || m_impl->m_type == "base64Binary" ||
m_impl->m_type == "uuid")
{
std::string val("\"");
val += escapeQuotes(v) + "\"";
return val;
}
return v;
}
std::string description() const
{ return m_impl->m_descrip; }
MetadataNodeList children() const
{
MetadataNodeList outnodes;
const MetadataSubnodes& nodes = m_impl->m_subnodes;
for (auto si = nodes.begin(); si != nodes.end(); ++si)
{
const MetadataImplList& l = si->second;
for (auto li = l.begin(); li != l.end(); ++li)
outnodes.push_back(MetadataNode(*li));
}
return outnodes;
}
MetadataNodeList children(const std::string& name) const
{
MetadataNodeList outnodes;
auto si = m_impl->m_subnodes.find(name);
if (si != m_impl->m_subnodes.end())
{
const MetadataImplList& l = si->second;
for (auto li = l.begin(); li != l.end(); ++li)
outnodes.push_back(MetadataNode(*li));
}
return outnodes;
}
bool hasChildren() const
{ return m_impl->m_subnodes.size(); }
std::vector<std::string> childNames() const
{
std::vector<std::string> names;
MetadataSubnodes& nodes = m_impl->m_subnodes;
for (auto si = nodes.begin(); si != nodes.end(); ++si)
names.push_back(si->first);
return names;
}
bool operator ! ()
{ return empty(); }
bool valid() const
{ return !empty(); }
bool empty() const
{ return m_impl->m_name.empty() && !hasChildren(); }
template <typename PREDICATE>
MetadataNode find(PREDICATE p) const
{
if (p(*this))
return *this;
auto nodes = children();
for (auto ai = nodes.begin(); ai != nodes.end(); ++ai)
{
MetadataNode n = ai->find(p);
if (!n.empty())
return n;
}
return MetadataNode();
}
template <typename PREDICATE>
MetadataNodeList findChildren(PREDICATE p)
{
MetadataNodeList matches;
auto nodes = children();
for (auto ai = nodes.begin(); ai != nodes.end(); ++ai)
{
MetadataNode& n = *ai;
if (p(n))
matches.push_back(n);
}
return matches;
}
template <typename PREDICATE>
MetadataNode findChild(PREDICATE p) const
{
auto nodes = children();
for (auto ai = nodes.begin(); ai != nodes.end(); ++ai)
{
MetadataNode& n = *ai;
if (p(n))
return n;
}
return MetadataNode();
}
MetadataNode findChild(const char *s) const
{ return findChild(std::string(s)); }
MetadataNode findChild(std::string s) const
{
auto splitString = [](std::string& s) -> std::string
{
std::string val;
size_t pos = s.find(':');
if (pos == std::string::npos)
{
val = s;
s.clear();
}
else
{
val = s.substr(0, pos);
s = (pos == s.size() - 1) ? "" : s.substr(pos + 1);
}
return val;
};
if (s.empty())
return *this;
std::string lname = splitString(s);
auto nodes = children(lname);
for (auto ai = nodes.begin(); ai != nodes.end(); ++ai)
{
MetadataNode& n = *ai;
MetadataNode child = n.findChild(s);
if (!child.empty())
return child;
}
return MetadataNode();
}
private:
MetadataNodeImplPtr m_impl;
MetadataNode(MetadataNodeImplPtr node) : m_impl(node)
{}
std::string escapeQuotes(const std::string& in) const
{
std::string out;
for (std::size_t i(0); i < in.size(); ++i)
{
if (in[i] == '"' && ((i && in[i - 1] != '\\') || !i))
{
out.push_back('\\');
}
out.push_back(in[i]);
}
return out;
}
};
inline bool operator == (const MetadataNode& m1, const MetadataNode& m2)
{
return m1.m_impl == m2.m_impl;
}
inline bool operator != (const MetadataNode& m1, const MetadataNode& m2)
{
return !(m1.m_impl == m2.m_impl);
}
class Metadata
{
friend class BasePointTable;
public:
Metadata() : m_root("root"), m_private("private")
{}
Metadata(const std::string& name) : m_name(name)
{}
MetadataNode getNode() const
{ return m_root; }
static std::string PDAL_DLL inferType(const std::string& val);
private:
MetadataNode m_root;
MetadataNode m_private;
std::string m_name;
};
typedef std::shared_ptr<Metadata> MetadataPtr;
} // namespace pdal
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