ossimHdfInfo Class Reference

HDF info class. More...

#include <ossimHdfInfo.h>

Inheritance diagram for ossimHdfInfo:

Public Member Functions
	ossimHdfInfo ()
	default constructor More...
virtual	~ossimHdfInfo ()
	virtual destructor More...
virtual bool	open (const ossimFilename &file)
	open method. More...
virtual std::ostream &	print (std::ostream &out) const
	Print method. More...
Public Member Functions inherited from ossimInfoBase
	ossimInfoBase ()
	default constructor More...
virtual bool	open (std::shared_ptr< ossim::istream > &str, const std::string &connectionString)
	open method. More...
void	setProcessOverviewFlag (bool flag)
	Sets the overview flag. More...
bool	getProcessOverviewFlag () const
	Method to get the overview flag. More...
virtual bool	getKeywordlist (ossimKeywordlist &kwl) const
	Method to dump info to a keyword list. More...
virtual bool	getKeywordlist (ossimKeywordlist &kwl, ossim_uint32 entryIndex) const
	Method to dump info to a keyword list. More...
Public Member Functions inherited from ossimReferenced
	ossimReferenced ()
	ossimReferenced (const ossimReferenced &)
ossimReferenced &	operator= (const ossimReferenced &)
void	ref () const
	increment the reference count by one, indicating that this object has another pointer which is referencing it. More...
void	unref () const
	decrement the reference count by one, indicating that a pointer to this object is referencing it. More...
void	unref_nodelete () const
	decrement the reference count by one, indicating that a pointer to this object is referencing it. More...
int	referenceCount () const

Private Attributes
ossimFilename	theFile
ossimRefPtr< ossimHdfReader >	m_hdfReader
ossimString	m_driverName
std::map< ossimString, ossimString, ossimStringLtstr >	m_globalMeta
std::vector< ossimString >	m_globalMetaVector

Additional Inherited Members
Protected Member Functions inherited from ossimInfoBase
virtual	~ossimInfoBase ()
	virtual destructor More...
Protected Member Functions inherited from ossimReferenced
virtual	~ossimReferenced ()
Protected Attributes inherited from ossimInfoBase
bool	theOverviewFlag

Detailed Description

HDF info class.

Encapsulates the HDF functionality.

Definition at line 27 of file ossimHdfInfo.h.

Constructor & Destructor Documentation

ossimHdfInfo()

ossimHdfInfo::ossimHdfInfo

(

)

default constructor

Definition at line 27 of file ossimHdfInfo.cpp.

   : ossimInfoBase(),
     theFile(),
     m_hdfReader(0),
     m_driverName()
{
}

~ossimHdfInfo()

ossimHdfInfo::~ossimHdfInfo ( )

virtual

virtual destructor

Definition at line 35 of file ossimHdfInfo.cpp.

References m_globalMeta, m_globalMetaVector, and m_hdfReader.

{
   m_hdfReader = 0;
   m_globalMeta.clear();
   m_globalMetaVector.clear();
}

Member Function Documentation

open()

bool ossimHdfInfo::open ( const ossimFilename &  file )

virtual

open method.

Parameters

file	File name to open.

Returns

true on success false on error.

Reimplemented from ossimInfoBase.

Definition at line 42 of file ossimHdfInfo.cpp.

{
   static const char MODULE[] = "ossimHdfInfo::open";
   if (traceDebug())
   {    
      ossimNotify(ossimNotifyLevel_DEBUG)
         << MODULE << " entered...\n"
         << "file: " << file << "\n";
   }

   bool result = false;
   
   ossimString ext = file.ext();
   ext.downcase();

   if ( ext == "hdf" || ext == "h4" || ext == "hdf4" || 
     ext == "he4" || ext == "hdf5" || ext == "he5" || ext == "h5" || 
     ext == "l1r")
   {
     m_hdfReader = new ossimHdfReader;
     m_hdfReader->setFilename(file);

     if ( m_hdfReader->open() )
     {
       m_driverName = m_hdfReader->getDriverName();
       if (m_driverName.contains("HDF4"))
       {
         m_driverName = "hdf4";
       }
       else if (m_driverName.contains("HDF5"))
       {
         m_driverName = "hdf5";
       }

       theFile = file;
       m_globalMeta.clear();
       m_globalMetaVector.clear();
       GDALDatasetH dataset = GDALOpen(theFile.c_str(), GA_ReadOnly);
       if (dataset != 0)
       {
          char** papszMetadata = GDALGetMetadata(dataset, NULL);
          if( CSLCount(papszMetadata) > 0 )
          {
             for(ossim_uint32 metaIndex = 0; papszMetadata[metaIndex] != 0; ++metaIndex)
             {
                ossimString metaInfo = papszMetadata[metaIndex];
                if (metaInfo.contains("="))
                {
                   std::vector<ossimString> metaInfos = metaInfo.split("=");
                   if (metaInfos.size() > 1)
                   {
                      ossimString key = metaInfos[0];
                      ossimString keyStr = key.substitute(":", ".", true);
                      keyStr = keyStr + ": ";
                      ossimString valueStr = metaInfos[1];
                      m_globalMeta[keyStr] = valueStr;
                      m_globalMetaVector.push_back(ossimString(keyStr + valueStr));
                   }
                }
             }
          }
       }
       GDALClose(dataset);

       result = true;
     }
   }

   if (traceDebug())
   {    
      ossimNotify(ossimNotifyLevel_DEBUG)
         << MODULE << " exit status = " << (result?"true\n":"false\n");
   }

   return result;
}

print()

std::ostream & ossimHdfInfo::print ( std::ostream &  out ) const

virtual

Print method.

Parameters

out	Stream to print to.

Returns

std::ostream&

Implements ossimInfoBase.

Definition at line 119 of file ossimHdfInfo.cpp.

{
   static const char MODULE[] = "ossimHdfInfo::print";
   if (traceDebug())
   {    
      ossimNotify(ossimNotifyLevel_DEBUG) << MODULE << " entered...\n";
   }

   ossimString prefix = ossimString(m_driverName + ".").downcase();

   //print out global meta first
   for (ossim_uint32 i = 0; i < m_globalMetaVector.size(); i++)
   {
       out << prefix << m_globalMetaVector[i] << "\n";
   }

   ossim_uint32 entryNum = m_hdfReader->getNumberOfEntries();
   for (ossim_uint32 i = 0; i < entryNum; i++)
   {
      ossimString imagePrefix = "image" + ossimString::toString(i) + ".";
      ossimString fileName = m_hdfReader->getEntryString(i);
      if (!fileName.empty())
      {
         GDALDatasetH dataset = GDALOpen(fileName.c_str(), GA_ReadOnly);
         if (dataset != 0)
         {
            ossim_uint32 numOfBands = GDALGetRasterCount(dataset);
            for (ossim_uint32 j = 0; j < numOfBands; j++)
            {
               ossimString bandPrefix = "band" + ossimString::toString(j) + ".";
               ossimString prefixStr = prefix + imagePrefix + bandPrefix;
               ossimString nameStr = "name: ";
               ossimString subDatasetName = fileName;
               std::vector<ossimString> subFileList = fileName.split(":");
               if (subFileList.size() > 2)
               {
                  if (m_driverName == "hdf4")
                  {
                     subDatasetName = subFileList[1] + ":" + subFileList[subFileList.size() - 2] + ":" + subFileList[subFileList.size() - 1];
                  }
                  else if (m_driverName == "hdf5")
                  {
                     subDatasetName = subFileList[subFileList.size() - 1];
                  }
               }
               out << prefixStr << nameStr << subDatasetName << "\n";

               char** papszMetadata = GDALGetMetadata(dataset, NULL);
               if( CSLCount(papszMetadata) > 0 )
               {
                  for(ossim_uint32 metaIndex = 0; papszMetadata[metaIndex] != 0; ++metaIndex)
                  {
                     ossimString metaInfo = papszMetadata[metaIndex];
                     if (metaInfo.contains("="))
                     {
                        std::vector<ossimString> metaInfos = metaInfo.split("=");
                        if (metaInfos.size() > 1)
                        {
                           ossimString key = metaInfos[0];
                           ossimString keyStr = key.substitute(":", ".", true);
                           keyStr = keyStr + ": ";
                           ossimString valueStr = metaInfos[1];
                           std::map<ossimString, ossimString, ossimStringLtstr>::const_iterator itSub = m_globalMeta.find(keyStr);
                           if (itSub == m_globalMeta.end())//avoid to print global again
                           {
                              out << prefixStr << keyStr << valueStr << "\n";
                           } 
                        }
                     }
                  }
               }
            }
            GDALClose(dataset);
         }//end if (dataset != 0)
      }//end if (!fileName.empty())
   }//end for
   
   if (traceDebug())
   {    
      ossimNotify(ossimNotifyLevel_DEBUG) << MODULE << " exited...\n";
   }

   return out;
}

Member Data Documentation

m_driverName

ossimString ossimHdfInfo::m_driverName

private

Definition at line 58 of file ossimHdfInfo.h.

m_globalMeta

std::map<ossimString, ossimString, ossimStringLtstr> ossimHdfInfo::m_globalMeta

private

Definition at line 59 of file ossimHdfInfo.h.

Referenced by ~ossimHdfInfo().

m_globalMetaVector

std::vector<ossimString> ossimHdfInfo::m_globalMetaVector

private

Definition at line 60 of file ossimHdfInfo.h.

Referenced by ~ossimHdfInfo().

m_hdfReader

ossimRefPtr<ossimHdfReader> ossimHdfInfo::m_hdfReader

private

Definition at line 57 of file ossimHdfInfo.h.

Referenced by ~ossimHdfInfo().

theFile

ossimFilename ossimHdfInfo::theFile

private

Definition at line 56 of file ossimHdfInfo.h.

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The documentation for this class was generated from the following files:

• ossimHdfInfo.h
• ossimHdfInfo.cpp