Package org.apache.openjpa.kernel

Examples of org.apache.openjpa.kernel.FillStrategy$Array

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     * @param channel  WritableByteChannel object - channel that can write bytes.
     * @return the number of bytes written, possibly zero.
     */
    public long readToByteChannel11(ucar.nc2.Variable v2, Section section, WritableByteChannel channel)
    throws java.io.IOException, ucar.ma2.InvalidRangeException {
        Array data = readData(v2, section);
        float[] ftdata=new float[(int)data.getSize()];
        byte[] bytedata=new byte[(int)data.getSize()*4];
        IndexIterator iter=data.getIndexIterator();
        int i=0;
        ByteBuffer buffer=ByteBuffer.allocateDirect(bytedata.length);
        while (iter.hasNext()) { ftdata[i]=iter.getFloatNext();
        bytedata[i]=new Float(ftdata[i]).byteValue();
        buffer.put(bytedata[i]);
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        xout.writeBytes("  <metar>\n");
        for (Iterator iter = sdata.getMembers().iterator(); iter.hasNext();) {
          StructureMembers.Member m = (StructureMembers.Member) iter.next();
          xout.writeBytes("    <data name='" + m.getName() + "'>");

          Array sdataArray = sdata.getArray(m);
          // System.out.println(m.getName()+" "+m.getDataType()+" "+sdataArray.toString());
          xout.writeBytes(sdataArray.toString() + "</data>\n");
        }

        xout.writeBytes("  </metar>\n");
      }
    };
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    GridDataset gds = GridDataset.open (filename);
    GeoGrid grid = gds.findGridByName("Temperature");

    long startTime = System.currentTimeMillis();

    Array data = grid.readDataSlice(0, -1, -1, -1);

    long endTime = System.currentTimeMillis();
    long diff = endTime - startTime;
    System.out.println("read "+data.getSize()+"  took "+diff+ " msecs");

    startTime = endTime;
    float[] jdata = (float []) data.get1DJavaArray(float.class);
    endTime = System.currentTimeMillis();
    diff = endTime - startTime;
    System.out.println("convert took "+diff+ " msecs "+jdata[0]);
  }
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      GeoGrid gg = gridDs.findGridByName("Temperature");
      long took = System.currentTimeMillis() - start;
      System.out.println("open took = " + took+" msecs");

      start = System.currentTimeMillis();
      Array data = gg.readVolumeData(0);
      took = System.currentTimeMillis() - start;
      float size = (float) data.getSize() * gg.getDataType().getSize() / (1000 * 1000);
      System.out.println(size+" Mbytes, took = " + took+" msecs");

    } catch (Exception ioe) {
      ioe.printStackTrace();
    }
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    NetcdfFile ncfile = TestH5.openH5("samples/opaque.h5");
    System.out.println( "\n"+ncfile);
    Variable v2 = ncfile.findVariable("Opaque");
    assert v2 != null;

    Array data = v2.read();
    assert data.getElementType() == ByteBuffer.class : data.getElementType();
    System.out.println( "data size= "+new Section(data.getShape()));
    NCdump.printArray(data, "Opaque data", System.out, null);


    Array odata = v2.read(new Section("1:20"));
    assert odata.getElementType() == ByteBuffer.class;
    assert odata.getSize() == 20;
    ncfile.close();
  }
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  public void testEnum() throws InvalidRangeException, IOException {
    NetcdfFile ncfile = TestH5.openH5("support/enum.h5");
    Variable v2 = ncfile.findVariable("enum");
    assert v2 != null;

    Array data = v2.read();
    assert data.getElementType() == int.class;

    NetcdfDataset ncd = TestH5.openH5dataset("support/enum.h5");
    v2 = ncd.findVariable("enum");
    assert v2 != null;

    data = v2.read();
    assert data.getElementType() == String.class;
    ncfile.close();
  }
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  public void utestEnum2() throws InvalidRangeException, IOException {
    NetcdfFile ncfile = NetcdfDataset.openFile("D:/netcdf4/tst_enum_data.nc", null);
    Variable v2 = ncfile.findVariable("primary_cloud");
    assert v2 != null;

    Array data = v2.read();
    assert data.getElementType() == byte.class;

    NetcdfDataset ncd = NetcdfDataset.openDataset("D:/netcdf4/tst_enum_data.nc");
    v2 = ncd.findVariable("primary_cloud");
    assert v2 != null;

    data = v2.read();
    assert data.getElementType() == String.class;
    ncfile.close();
  }
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  public void testTime() throws IOException {
    H5header.setDebugFlags(new ucar.nc2.util.DebugFlagsImpl("H5header/header"));
    NetcdfFile ncfile = TestH5.openH5("support/time.h5");

    Variable v = ncfile.findVariable("dset");
    Array data = v.read();
    NCdump.printArray(data, "dset", System.out, null);
    System.out.println( "\n**** testReadNetcdf4 done\n\n"+ncfile);
    ncfile.close();
  }
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  public void testCompoundEnum() throws IOException {
    H5header.setDebugFlags(new ucar.nc2.util.DebugFlagsImpl("H5header/header"));
    NetcdfFile ncfile = TestH5.openH5("support/cenum.h5");
    Variable v = ncfile.findVariable("enum");
    Array data = v.read();
    NCdump.printArray(data, "enum", System.out, null);
    System.out.println( "\n**** testReadNetcdf4 done\n\n"+ncfile);
    ncfile.close();
  }
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  public void utestEnum() throws IOException {
    H5header.setDebugFlags(new ucar.nc2.util.DebugFlagsImpl("H5header/header"));
    String filename = testDir+"nc4/tst_enum_data.nc";
    NetcdfFile ncfile = TestNC2.open(filename);
    Variable v = ncfile.findVariable("primary_cloud");                       
    Array data = v.read();
    System.out.println("\n**** testReadNetcdf4 done\n\n" + ncfile);
    NCdumpW.printArray(data, "primary_cloud", new PrintWriter( System.out), null);
    ncfile.close();
  }
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