ossimOgrInfo Class Reference

Ogr info class. More...

#include <ossimOgrInfo.h>

Inheritance diagram for ossimOgrInfo:

Public Member Functions
	ossimOgrInfo ()
	default constructor More...
virtual	~ossimOgrInfo ()
	virtual destructor More...
virtual bool	open (const ossimFilename &file)
	open method. More...
virtual std::ostream &	print (std::ostream &out) const
	Print method. More...
virtual bool	getKeywordlist (ossimKeywordlist &kwl) const
	Method to dump info to a keyword list. 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, 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 Member Functions
ossimString	getDriverName (ossimString driverName) const
void	parseMetadata (ossimString metaData, ossimKeywordlist &kwl, ossimString metaPrefix) const
	Parse the VPF metadata More...

Private Attributes
ossimFilename	m_file
OGRDataSource *	m_ogrDatasource
OGRSFDriver *	m_ogrDriver

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

Ogr info class.

Encapsulates the Ogr functionality.

Definition at line 36 of file ossimOgrInfo.h.

Constructor & Destructor Documentation

ossimOgrInfo()

ossimOgrInfo::ossimOgrInfo

(

)

default constructor

Definition at line 86 of file ossimOgrInfo.cpp.

   : ossimInfoBase(),
     m_file(),
     m_ogrDatasource(0),
     m_ogrDriver(0)
{
}

~ossimOgrInfo()

ossimOgrInfo::~ossimOgrInfo ( )

virtual

virtual destructor

Definition at line 94 of file ossimOgrInfo.cpp.

References m_ogrDatasource.

{
  if (m_ogrDatasource != NULL)
  {
    OGRDataSource::DestroyDataSource(m_ogrDatasource);
    m_ogrDatasource = 0;
  }
}

Member Function Documentation

getDriverName()

ossimString ossimOgrInfo::getDriverName ( ossimString  driverName ) const

private

Definition at line 649 of file ossimOgrInfo.cpp.

Referenced by getKeywordlist().

{
  if (driverName == "esri shapefile")
  {
    return "shp";
  }
  else if (driverName == "ogdi")
  {
    return "vpf";
  }
  else
  {
    return driverName;
  }
}

getKeywordlist()

bool ossimOgrInfo::getKeywordlist ( ossimKeywordlist &  kwl ) const

virtual

Method to dump info to a keyword list.

Parameters

kwl	The keyword list to initialize.

Returns

true on success, false on error.

Reimplemented from ossimInfoBase.

Definition at line 461 of file ossimOgrInfo.cpp.

References ossimKeywordlist::add(), ossimString::c_str(), ossimString::empty(), getDriverName(), m_ogrDatasource, m_ogrDriver, parseMetadata(), and ossimString::toString().

{  
  if (m_ogrDatasource != NULL)  
  {
    ossimString driverName = getDriverName(ossimString(GDALGetDriverShortName(m_ogrDriver)).downcase());

    ossimString metaPrefix = ossimString(driverName + ".");

    //get meta data
    ossimString strValue;
    char** metaData = 0; // tmp drb m_ogrDatasource->GetMetadata("metadata");
    ossimString keyName = "tableinfo";
    size_t nLen = strlen(keyName.c_str());
    if (metaData != NULL && driverName == "vpf")
    {
      while(*metaData != NULL)
      {
        if (EQUALN(*metaData, keyName.c_str(), nLen)
          && ( (*metaData)[nLen] == '=' || 
          (*metaData)[nLen] == ':' ) )
        {
          strValue = (*metaData)+nLen+1;
        }
        metaData++;
      }

      if (!strValue.empty())
     {
        parseMetadata(strValue, kwl, metaPrefix);
      }
   }

    //get geometry data
    ossimString geomType;
    int layerCount = m_ogrDatasource->GetLayerCount();
    ossimString prefixInt = ossimString(metaPrefix + "layer");
    for(int i = 0; i < layerCount; ++i)
    {
      ossimString prefix = prefixInt + ossimString::toString(i) + ".";
      ossimString specialPrefix = "layer" + ossimString::toString(i) + ".";

      OGRLayer* layer = m_ogrDatasource->GetLayer(i);
      if(layer)
      {
        //get feature count and geometry type
        int featureCount = layer->GetFeatureCount();
        const char* layerName = layer->GetLayerDefn()->GetName();

        OGRFeature* feature = layer->GetFeature(0);
        if(feature)
        {
          OGRGeometry* geom = feature->GetGeometryRef(); 
          if(geom)
          {
            switch(geom->getGeometryType())
            {
            case wkbMultiPoint:
            case wkbMultiPoint25D:
              {
                geomType = "Multi Points";
                break;
              }
            case wkbPolygon25D:
            case wkbPolygon:
              {
                geomType = "Polygon";
                break;
              }
            case wkbLineString25D:
            case wkbLineString:
              {
                geomType = "LineString";
                break;
              }
            case wkbPoint:
            case wkbPoint25D:
              {
                geomType = "Points";
                break;
              }
            case wkbMultiPolygon25D:
            case wkbMultiPolygon:
              {
                geomType = "Multi Polygon";
                break;

              }
            default:
              {
                geomType = "Unknown Type";
                break;
              }
            }
          }
        }//end if feature
        OGRFeature::DestroyFeature(feature);

        kwl.add(specialPrefix,
          "features",
          featureCount,
          true);

        //get all attribute fields
        OGRFeatureDefn* featureDefn = layer->GetLayerDefn();
        if (featureDefn)
        {
          for(int iField = 0; iField < featureDefn->GetFieldCount(); iField++ )
          {
            OGRFieldDefn* fieldDefn = featureDefn->GetFieldDefn(iField);
            ossimString fieldType;
            if (fieldDefn)
            {
              ossimString fieldName = ossimString(fieldDefn->GetNameRef());
              if( fieldDefn->GetType() == OFTInteger )
              {
                fieldType = "Integer";
              }
              else if( fieldDefn->GetType() == OFTReal )
              {
                fieldType = "Real";
              }
              else if( fieldDefn->GetType() == OFTString )
              {
                fieldType = "String";
              }
              else if ( fieldDefn->GetType() == OFTWideString)
              {
                fieldType = "WideString";
              }
              else if ( fieldDefn->GetType() == OFTBinary )
              {
                fieldType = "Binary";
              }
              else if ( fieldDefn->GetType() == OFTDate )
              {
                fieldType = "Date";
              }
              else if ( fieldDefn->GetType() == OFTTime )
              {
                fieldType = "Time";
              }
              else if ( fieldDefn->GetType() == OFTDateTime )
              {
                fieldType = "DateTime";
              }
              else
              {
                fieldType = "String";
              }

              ossimString fieldInfo = ossimString(fieldName + " (" + fieldType + ")");

              ossimString colPrefix = prefix + "column" + ossimString::toString(iField);
              kwl.add(colPrefix,
                "",
                fieldInfo,
                true);
            }
          }
        }

        kwl.add(specialPrefix,
          "name",
          layerName,
          true);

        kwl.add(specialPrefix,
          "geometry",
          geomType,
          true);
      } //end if layer
    }// end i
    return true;
  }// end if datasource
  return false;
}

open()

bool ossimOgrInfo::open ( const ossimFilename &  file )

virtual

open method.

Parameters

file	File name to open. The example of SDE file name: SDE:server,instance,database,username,password,layername e.g ossim-info -p -d SDE:SPATCDT001,5151,SDE,SADATABASE,SAPASSWORD,SATABLENAME

The example of VPF file name: C:/vpfdata/mpp1/vmaplv0/eurnasia/cat e.g ossim-info -p -d D:/OSSIM_Data/vpf_data/WVSPLUS/WVS120M/CAT

Returns

true on success false on error.

Reimplemented from ossimInfoBase.

Definition at line 103 of file ossimOgrInfo.cpp.

References ossimString::c_str(), m_file, m_ogrDatasource, and m_ogrDriver.

{
   if ( m_ogrDatasource )
   {
      OGRDataSource::DestroyDataSource(m_ogrDatasource);
      m_ogrDatasource = 0;
   }

   // Below interface removed in gdal.
   // m_file = file;
   // m_ogrDatasource = OGRSFDriverRegistrar::Open(file.c_str(), false, &m_ogrDriver);

   m_ogrDatasource = (OGRDataSource*) OGROpen( file.c_str(), false, NULL );
   if ( m_ogrDatasource )
   {
      m_ogrDriver = (OGRSFDriver*) m_ogrDatasource->GetDriver();
      if ( m_ogrDriver )
      {
         m_file = file;
      }

      if ( !m_ogrDriver ) 
      {
         OGRDataSource::DestroyDataSource( m_ogrDatasource );
         m_ogrDatasource = 0;
      }
   }

   return ( m_ogrDatasource ? true : false );
}

parseMetadata()

void ossimOgrInfo::parseMetadata ( ossimString  metaData, ossimKeywordlist &  kwl, ossimString  metaPrefix  ) const

private

Parse the VPF metadata

Definition at line 134 of file ossimOgrInfo.cpp.

References ossimKeywordlist::add(), ossimString::after(), ossimString::contains(), ossimString::downcase(), ossimString::empty(), getKeyValue(), ossimString::split(), and ossimString::trim().

Referenced by getKeywordlist().

{
   std::vector<ossimString> metaList = metaData.split("\n");
   bool isCat = false;  
   bool isLat = false;
   bool isDht = false;
   bool isLht = false;
   bool isGrt = false;
   bool isDqt = false;
   bool isFcs = false;
   bool isFca = false;

   ossimString catKeyPrefix = "cat.";
   ossimString latKeyPrefix = "lat.";
   ossimString dhtKeyPrefix = "dht.";
   ossimString lhtKeyPrefix = "lht.";
   ossimString grtKeyPrefix = "grt.";
   ossimString dqtKeyPrefix = "dqt.";
   ossimString fcsKeyPrefix = "fcs.";
   ossimString fcaKeyPrefix = "fca.";
   
   for (ossim_uint32 i = 0; i < metaList.size(); i++)
   {
     ossimString metaNameValue = metaList[i].trim();
     ossimString metaStr = metaList[i].downcase().trim();
     if (metaStr.contains("(cat)"))
     {
       isCat = true;
       isLat = false; //set others to false
       isDht = false;
       isLht = false;
       isGrt = false;
       isDqt = false;
       isFcs = false;
       isFca = false;
       continue;
     }
     if (isCat)
     {
       if (metaStr.contains(":") && 
           !metaStr.contains("(lat)") && 
           !metaStr.contains("(dht)") && 
           !metaStr.contains("(lht)") && 
           !metaStr.contains("(grt)") && 
           !metaStr.contains("(dqt)") && 
           !metaStr.contains("(fcs)") && 
           !metaStr.contains("} } }  { family"))
       {
         ossimString keyValue = getKeyValue(metaPrefix, catKeyPrefix, 
                                            metaNameValue, kwl);
         ossimString metaValue = metaNameValue.split(":")[1].trim();
         ossimString prefix = ossimString(catKeyPrefix + keyValue);
         kwl.add(metaPrefix,
           prefix,
           metaValue,
           false);
       }
     }

     if (metaStr.contains("(lat)"))
     {
       isLat = true;
       isCat = false; //set others to false
       isDht = false;
       isLht = false;
       isGrt = false;
       isDqt = false;
       isFcs = false;
       isFca = false;
       continue;
     }
     if (isLat)
     {
       if (metaStr.contains(":") && 
         !metaStr.contains("(cat)") && 
         !metaStr.contains("(dht)") && 
         !metaStr.contains("(lht)") && 
         !metaStr.contains("(grt)") && 
         !metaStr.contains("(dqt)") && 
         !metaStr.contains("(fcs)") && 
         !metaStr.contains("} } }  { family"))
       {
         //do nothing. no need for lat info for now.
       }
     }

     if (metaStr.contains("(dht)"))
     {
       isDht = true;
       isCat = false;
       isLat = false;
       isLht = false;
       isGrt = false;
       isDqt = false;
       isFcs = false;
       isFca = false;
       continue;
     }
     if (isDht)
     {
       if (metaStr.contains(":") && 
         !metaStr.contains("(lat)") && 
         !metaStr.contains("(cat)") && 
         !metaStr.contains("(lht)") && 
         !metaStr.contains("(grt)") && 
         !metaStr.contains("(dqt)") && 
         !metaStr.contains("(fcs)") && 
         !metaStr.contains("} } }  { family"))
       {
         ossimString keyValue = getKeyValue(metaPrefix, dhtKeyPrefix, 
                                            metaNameValue, kwl);
         ossimString metaValue = metaNameValue.split(":")[1].trim();
         ossimString prefix = ossimString(dhtKeyPrefix + keyValue);
         kwl.add(metaPrefix,
           prefix,
           metaValue,
           false);
       }
     }

     if (metaStr.contains("(lht)"))
     {
       isLht = true;
       isDht = false;
       isCat = false;
       isLat = false;
       isGrt = false;
       isDqt = false;
       isFcs = false;
       isFca = false;
       continue;
     }
     if (isLht)
     {
       if (metaStr.contains(":") && 
         !metaStr.contains("(lat)") && 
         !metaStr.contains("(dht)") && 
         !metaStr.contains("(cat)") && 
         !metaStr.contains("(grt)") && 
         !metaStr.contains("(dqt)") && 
         !metaStr.contains("(fcs)") && 
         !metaStr.contains("} } }  { family"))
       {
         ossimString keyValue = getKeyValue(metaPrefix, lhtKeyPrefix, 
                                            metaNameValue, kwl);
         ossimString metaValue = metaNameValue.split(":")[1].trim();
         ossimString prefix = ossimString(lhtKeyPrefix + keyValue);
         kwl.add(metaPrefix,
           prefix,
           metaValue,
           false);
       }
     }

     if (metaStr.contains("(grt)"))
     {
       isGrt = true;
       isLht = false;
       isDht = false;
       isCat = false;
       isLat = false;
       isDqt = false;
       isFcs = false;
       isFca = false;
       continue;
     }
     if (isGrt)
     {
       if (metaStr.contains(":") && 
         !metaStr.contains("(lat)") && 
         !metaStr.contains("(dht)") && 
         !metaStr.contains("(lht)") && 
         !metaStr.contains("(cat)") && 
         !metaStr.contains("(dqt)") && 
         !metaStr.contains("(fcs)") && 
         !metaStr.contains("} } }  { family"))
       {
         ossimString keyValue = getKeyValue(metaPrefix, grtKeyPrefix, 
                                            metaNameValue, kwl);
         ossimString metaValue = metaNameValue.split(":")[1].trim();
         ossimString prefix = ossimString(grtKeyPrefix + keyValue);
         kwl.add(metaPrefix,
           prefix,
           metaValue,
           false);
       }
     }

     if (metaStr.contains("(dqt)"))
     {
       isDqt = true;
       isGrt = false;
       isLht = false;
       isDht = false;
       isCat = false;
       isLat = false;
       isFcs = false;
       isFca = false;
       continue;
     }
     if (isDqt)
     {
       if (metaStr.contains(":") && 
         !metaStr.contains("(lat)") && 
         !metaStr.contains("(dht)") && 
         !metaStr.contains("(lht)") && 
         !metaStr.contains("(grt)") && 
         !metaStr.contains("(cat)") && 
         !metaStr.contains("(fcs)") && 
         !metaStr.contains("} } }  { family"))
       {
         ossimString keyValue = getKeyValue(metaPrefix, dqtKeyPrefix, 
                                            metaNameValue, kwl);
         ossimString metaValue = metaNameValue.split(":")[1].trim();
         ossimString prefix = ossimString(dqtKeyPrefix + keyValue);
         kwl.add(metaPrefix,
           prefix,
           metaValue,
           false);
       }
     }

     if (metaStr.contains("(fcs)"))
     {
       isFcs = true;
       isDqt = false;
       isGrt = false;
       isLht = false;
       isDht = false;
       isCat = false;
       isLat = false;
       isFca = false;
       continue;
     }
     if (isFcs)
     {
       if (metaStr.contains(":") && 
         !metaStr.contains("(lat)") && 
         !metaStr.contains("(dht)") && 
         !metaStr.contains("(lht)") && 
         !metaStr.contains("(grt)") && 
         !metaStr.contains("(dqt)") && 
         !metaStr.contains("(cat)") && 
         !metaStr.contains("} } }  { family"))
       {
         ossimString keyValue = getKeyValue(metaPrefix, fcsKeyPrefix, 
                                            metaNameValue, kwl);
         ossimString metaValue = metaNameValue.split(":")[1].trim();
         ossimString prefix = ossimString(fcsKeyPrefix + keyValue);
         kwl.add(metaPrefix,
           prefix,
           metaValue,
           false);
       }
     }

     if (metaStr.contains("} } }  { family"))
     {
       isFca = true;
       isDqt = false;
       isGrt = false;
       isLht = false;
       isDht = false;
       isCat = false;
       isLat = false;
       isFcs = false;
     }
     if (isFca)
     {
       if (!metaStr.contains("(lat)") && 
         !metaStr.contains("(dht)") && 
         !metaStr.contains("(lht)") && 
         !metaStr.contains("(grt)") && 
         !metaStr.contains("(dqt)") && 
         !metaStr.contains("(fcs)"))
       {
         std::vector<ossimString> fcaTmpVector = metaNameValue.split("}}");
         ossimString fcaClassName;
         for (ossim_uint32 i = 0; i < fcaTmpVector.size(); i++)
         {
           ossimString fcaTemp = fcaTmpVector[i].trim();
           if (!fcaTemp.empty())
           {
             if (fcaTemp.contains("family"))
             {
               if (fcaTemp.split(" ").size() > 1)
               {
                 fcaClassName = fcaTemp.split(" ")[2].trim();
               }
             }
             else
             {
               std::vector<ossimString> fcaValues;
               if (fcaTemp.contains("<Grassland>displaymetadata {"))
               {
                 ossimString displaymetadataVector = fcaTemp.after("<Grassland>displaymetadata {").trim();
                 if (!displaymetadataVector.empty())
                 {
                   fcaValues = displaymetadataVector.split("{");
                 }
               }
               else
               {
                 fcaValues = fcaTemp.split("{");
               }

               if (fcaValues.size() > 2)
               {
                 ossimString fcaKey = fcaValues[1].trim();
                 ossimString fcaValue = fcaValues[2].trim();

                 ossimString prefix = ossimString(fcaKeyPrefix + fcaClassName + "." + fcaKey);
                 kwl.add(metaPrefix,
                   prefix,
                   fcaValue,
                   false);
               }
             }
           }          
         }
       }
     }
   }
}

print()

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

virtual

Print method.

Parameters

out	Stream to print to.

Returns

std::ostream&

Implements ossimInfoBase.

Definition at line 638 of file ossimOgrInfo.cpp.

{
  static const char MODULE[] = "ossimOgrInfo::print";
  if (traceDebug())
  {    
     ossimNotify(ossimNotifyLevel_DEBUG)
      << MODULE << " DEBUG Entered...\n";
  }
  return out;
}

Member Data Documentation

m_file

ossimFilename ossimOgrInfo::m_file

private

Definition at line 80 of file ossimOgrInfo.h.

Referenced by open().

m_ogrDatasource

OGRDataSource* ossimOgrInfo::m_ogrDatasource

private

Definition at line 81 of file ossimOgrInfo.h.

Referenced by getKeywordlist(), open(), and ~ossimOgrInfo().

m_ogrDriver

OGRSFDriver* ossimOgrInfo::m_ogrDriver

private

Definition at line 82 of file ossimOgrInfo.h.

Referenced by getKeywordlist(), and open().

---

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

• ossimOgrInfo.h
• ossimOgrInfo.cpp