ossimAuxEntry Class Reference

#include <ossimAuxFileHandler.h>

Public Member Functions
	ossimAuxEntry (ossimAuxInfo *auxInfoIn, ossim_uint32 nPos, ossimAuxEntry *parentIn, ossimAuxEntry *prevIn)
virtual	~ossimAuxEntry ()
ossim_uint32	getFilePos ()
const char *	getName ()
void	setName (const char *nodeName)
const char *	getType ()
char *	getData ()
ossim_uint32	getDataPos ()
ossim_uint32	getDataSize ()
ossimAuxEntry *	getChild ()
ossimAuxEntry *	getNext ()
ossimAuxEntry *	getNamedChild (const char *name)
ossim_int16	getIntField (const char *auxFieldPath)
const char *	getStringField (const char *auxFieldPath)

Private Member Functions
void	loadData ()
int	getFieldValue (const char *auxFieldPath, char chReqType, void *reqReturn)

Private Attributes
ossim_uint32	nFilePos
ossimAuxInfo *	m_auxInfo
ossimAuxEntry *	m_Parent
ossimAuxEntry *	m_Prev
ossimAuxEntry *	m_Next
ossimAuxEntry *	m_Child
ossim_uint32	nNextPos
ossim_uint32	nChildPos
char	entryNodeName [64]
char	entryType [32]
ossimAuxType *	m_Type
ossim_uint32	nDataPos
ossim_uint32	nDataSize
char *	entryData

Detailed Description

Definition at line 69 of file ossimAuxFileHandler.h.

Constructor & Destructor Documentation

ossimAuxEntry()

ossimAuxEntry::ossimAuxEntry	(	ossimAuxInfo *	auxInfoIn,
		ossim_uint32	nPos,
		ossimAuxEntry *	parentIn,
		ossimAuxEntry *	prevIn
	)

Definition at line 283 of file ossimAuxFileHandler.cpp.

{
   m_auxInfo = auxInfoIn;

   nFilePos = nPos;
  
   m_Parent = parentIn;
   m_Prev = prevIn;

   m_Next = NULL;
   m_Child = NULL;
   entryData = NULL;

   nDataPos = nDataSize = 0;
   nNextPos = nChildPos = 0;

   entryNodeName[0] = entryType[0] = '\0';

   ossim_int32  anEntryNums[6];
 
   if( fseek( m_auxInfo->fp, nFilePos, SEEK_SET ) == -1
       || fread( anEntryNums, sizeof(ossim_uint32), 6, m_auxInfo->fp ) < 1 )
   {
      return;
   }

   nNextPos = anEntryNums[0];
   nChildPos = anEntryNums[3];
   nDataPos = anEntryNums[4];
   nDataSize = anEntryNums[5];

   if( fread( entryNodeName, 1, 64, m_auxInfo->fp ) < 1
       || fread( entryType, 1, 32, m_auxInfo->fp ) < 1 )
   {
      return;
   }
}

~ossimAuxEntry()

ossimAuxEntry::~ossimAuxEntry ( )

virtual

Definition at line 322 of file ossimAuxFileHandler.cpp.

{
   if( entryData != NULL )
   {
      delete entryData;
      entryData = 0;
   }

   if( m_Next != NULL )
   {
      delete m_Next;
      m_Next = 0;
   }

   if( m_Child != NULL )
   {
      delete m_Child;
      m_Child = 0;
   }
}

Member Function Documentation

getChild()

ossimAuxEntry * ossimAuxEntry::getChild

(

)

Definition at line 349 of file ossimAuxFileHandler.cpp.

{
   if( m_Child == NULL && nChildPos != 0 )
   {
      m_Child = new ossimAuxEntry( m_auxInfo, nChildPos, this, NULL );
   }

   return( m_Child );
}

getData()

char* ossimAuxEntry::getData ( )

inline

Definition at line 108 of file ossimAuxFileHandler.h.

References entryData, and loadData().

{ loadData(); return entryData; }

getDataPos()

ossim_uint32 ossimAuxEntry::getDataPos ( )

inline

Definition at line 109 of file ossimAuxFileHandler.h.

References nDataPos.

{ return nDataPos; }

getDataSize()

ossim_uint32 ossimAuxEntry::getDataSize ( )

inline

Definition at line 110 of file ossimAuxFileHandler.h.

References nDataSize.

{ return nDataSize; }

getFieldValue()

int ossimAuxEntry::getFieldValue ( const char *  auxFieldPath, char  chReqType, void *  reqReturn  )

private

Definition at line 449 of file ossimAuxFileHandler.cpp.

{
   ossimAuxEntry    *entry = this;

   if( strchr(auxFieldPath,':') != NULL )
   {
      entry = getNamedChild( auxFieldPath );
      if( entry == NULL )
         return false;

      auxFieldPath = strchr(auxFieldPath,':') + 1;
   }

   loadData();

   if( entryData == NULL )
   {
      return false;
   }

   if( m_Type == NULL )
   {
      return false;
   }

   return (m_Type->extractInstValue( auxFieldPath,
                                     entryData, nDataPos, nDataSize,
                                     chReqType, reqReturn ));
}

getFilePos()

ossim_uint32 ossimAuxEntry::getFilePos ( )

inline

Definition at line 101 of file ossimAuxFileHandler.h.

References nFilePos.

{ return nFilePos; }

getIntField()

ossim_int16 ossimAuxEntry::getIntField

(

const char *

auxFieldPath

)

Definition at line 480 of file ossimAuxFileHandler.cpp.

{
   ossim_int16  nIntValue;

   if( !getFieldValue( auxFieldPath, 'i', &nIntValue ) )
   {
      return 0;
   }
   else
   {
      return nIntValue;
   }
}

getName()

const char* ossimAuxEntry::getName ( )

inline

Definition at line 103 of file ossimAuxFileHandler.h.

References entryNodeName.

Referenced by getNamedChild().

{ return entryNodeName; }

getNamedChild()

ossimAuxEntry * ossimAuxEntry::getNamedChild

(

const char *

name

)

Definition at line 412 of file ossimAuxFileHandler.cpp.

References getName(), getNamedChild(), and getNext().

Referenced by getNamedChild().

{
   int      nNameLen;
   ossimAuxEntry    *entry;

   for( nNameLen = 0;
        name[nNameLen] != '.'
           && name[nNameLen] != '\0'
           && name[nNameLen] != ':';
        nNameLen++ ) {}

  
   for( entry = getChild(); entry != NULL; entry = entry->getNext() )
   {
      std::string tmpEntryName = const_cast<char*>(entry->getName());
      tmpEntryName = tmpEntryName.substr(0, nNameLen);
      std::string tmpName = const_cast<char*>(name);
      tmpName = tmpName.substr(0, nNameLen);
      if( strcmp(tmpEntryName.c_str(),tmpName.c_str()) == 0
          && (int) strlen(entry->getName()) == nNameLen )
      {
         if( name[nNameLen] == '.' )
         {
            ossimAuxEntry *result;

            result = entry->getNamedChild( name+nNameLen+1 );
            if( result != NULL )
               return result;
         }
         else
            return entry;
      }
   }

   return NULL;
}

getNext()

ossimAuxEntry * ossimAuxEntry::getNext

(

)

Definition at line 359 of file ossimAuxFileHandler.cpp.

References m_Prev, and nFilePos.

Referenced by getNamedChild().

{
   if( m_Next == NULL && nNextPos != 0 )
   {
      // Check if we have a loop on the next node in this sibling chain.
      ossimAuxEntry *past;

      for( past = this; 
           past != NULL && past->nFilePos != nNextPos; 
           past = past->m_Prev ) {}

      if( past != NULL )
      {
         nNextPos = 0;
         return NULL;
      }

      m_Next = new ossimAuxEntry(m_auxInfo, nNextPos, m_Parent, this );
   }

   return( m_Next );
}

getStringField()

const char * ossimAuxEntry::getStringField

(

const char *

auxFieldPath

)

Definition at line 494 of file ossimAuxFileHandler.cpp.

{
   char *result = NULL;

   if( !getFieldValue( auxFieldPath, 's', &result ) )
   {
      return NULL;
   }
   else
   {
      return result;
   }
}

getType()

const char* ossimAuxEntry::getType ( )

inline

Definition at line 106 of file ossimAuxFileHandler.h.

References entryType.

{ return entryType; }

loadData()

void ossimAuxEntry::loadData ( )

private

Definition at line 382 of file ossimAuxFileHandler.cpp.

Referenced by getData().

{
   if( entryData != NULL || nDataSize == 0 )
   {
      return;
   }

   entryData = (char*) malloc(nDataSize);
   if (entryData == NULL)
   {
      return;
   }

   if(fseek(m_auxInfo->fp, nDataPos, SEEK_SET ) < 0 )
   {
      return;
   }

   if( fread( entryData, 1, nDataSize, m_auxInfo->fp ) < 1 )
   {
      return;
   }

   m_Type = m_auxInfo->m_Dictionary->findType( entryType );
   if(m_Type == NULL)
   {
      return;
   }
}

setName()

void ossimAuxEntry::setName

(

const char *

nodeName

)

Definition at line 343 of file ossimAuxFileHandler.cpp.

{
   memset( entryNodeName, '\0', 64 );
   strncpy( entryNodeName, nodeName, 64 );
}

Member Data Documentation

entryData

char* ossimAuxEntry::entryData

private

Definition at line 88 of file ossimAuxFileHandler.h.

Referenced by getData().

entryNodeName

char ossimAuxEntry::entryNodeName[64]

private

Definition at line 82 of file ossimAuxFileHandler.h.

Referenced by getName().

entryType

char ossimAuxEntry::entryType[32]

private

Definition at line 83 of file ossimAuxFileHandler.h.

Referenced by getType().

m_auxInfo

ossimAuxInfo* ossimAuxEntry::m_auxInfo

private

Definition at line 73 of file ossimAuxFileHandler.h.

m_Child

ossimAuxEntry* ossimAuxEntry::m_Child

private

Definition at line 77 of file ossimAuxFileHandler.h.

m_Next

ossimAuxEntry* ossimAuxEntry::m_Next

private

Definition at line 76 of file ossimAuxFileHandler.h.

m_Parent

ossimAuxEntry* ossimAuxEntry::m_Parent

private

Definition at line 74 of file ossimAuxFileHandler.h.

m_Prev

ossimAuxEntry* ossimAuxEntry::m_Prev

private

Definition at line 75 of file ossimAuxFileHandler.h.

Referenced by getNext().

m_Type

ossimAuxType* ossimAuxEntry::m_Type

private

Definition at line 85 of file ossimAuxFileHandler.h.

nChildPos

ossim_uint32 ossimAuxEntry::nChildPos

private

Definition at line 80 of file ossimAuxFileHandler.h.

nDataPos

ossim_uint32 ossimAuxEntry::nDataPos

private

Definition at line 86 of file ossimAuxFileHandler.h.

Referenced by getDataPos().

nDataSize

ossim_uint32 ossimAuxEntry::nDataSize

private

Definition at line 87 of file ossimAuxFileHandler.h.

Referenced by getDataSize().

nFilePos

ossim_uint32 ossimAuxEntry::nFilePos

private

Definition at line 71 of file ossimAuxFileHandler.h.

Referenced by getFilePos(), and getNext().

nNextPos

ossim_uint32 ossimAuxEntry::nNextPos

private

Definition at line 79 of file ossimAuxFileHandler.h.

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

• ossimAuxFileHandler.h
• ossimAuxFileHandler.cpp