Classes
class	DenseMatrixReader

class	SparseMatrixReader

Public Member Functions
	VisumMatrixReader (final Matrix matrix)

Matrix	readFile (final String filename)

Private Attributes
Matrix	matrix = null

Detailed Description

Author: mrieser

Definition at line 34 of file VisumMatrixReader.java.

Constructor & Destructor Documentation

◆ VisumMatrixReader()

org.matsim.visum.VisumMatrixReader.VisumMatrixReader ( final Matrix matrix )

Definition at line 40 of file VisumMatrixReader.java.

References org.matsim.visum.VisumMatrixReader.matrix.

                                                   {
         this.matrix = matrix;
     }

Member Function Documentation

◆ readFile()

Matrix org.matsim.visum.VisumMatrixReader.readFile ( final String filename )

Definition at line 44 of file VisumMatrixReader.java.

References org.matsim.core.utils.io.IOUtils.getBufferedReader(), org.matsim.visum.VisumMatrixReader.DenseMatrixReader.read(), and org.matsim.matrices.Matrix.setDesc().

                                                   {
         BufferedReader infile = null;
         try {
             infile = IOUtils.getBufferedReader(filename);
 
             this.matrix.setDesc(filename);
 
             infile.mark(1024);
             String header = infile.readLine();
             infile.reset();
 
             if (header != null) {
                 if (header.equals("$VN;Y5")) {
                     new DenseMatrixReader(this.matrix).read(infile);
                 } else if (header.startsWith("$O")) {
                     new SparseMatrixReader(this.matrix).read(infile);
                 } else {
                     throw new RuntimeException("Visum file format '" + header +"' is not supported.");
                 }
             } else {
                 throw new RuntimeException("header is missing");
             }
 
         } catch (IOException e) {
             e.printStackTrace();
             return null;
         } finally {
             if (infile != null) {
                 try { infile.close(); }
                 catch (IOException e) { log.warn("Could not close input-stream.", e); }
             }
         }
 
         return matrix;
     }