From 8f27e65bddd7d4b8515ce620fb485fdd78fcdf89 Mon Sep 17 00:00:00 2001
From: Constantin Jucovschi <cj@ubuntu.localdomain>
Date: Fri, 24 Apr 2009 07:20:22 -0400
Subject: Initial commit

---
 java/rasj/RasMArrayDouble.java | 195 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 195 insertions(+)
 create mode 100644 java/rasj/RasMArrayDouble.java

(limited to 'java/rasj/RasMArrayDouble.java')

diff --git a/java/rasj/RasMArrayDouble.java b/java/rasj/RasMArrayDouble.java
new file mode 100644
index 0000000..955ef6a
--- /dev/null
+++ b/java/rasj/RasMArrayDouble.java
@@ -0,0 +1,195 @@
+package rasj;
+
+import rasj.*;
+import rasj.odmg.*;
+import rasj.global.*;
+
+import java.io.*;
+
+/*
+* This file is part of rasdaman community.
+*
+* Rasdaman community is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* Rasdaman community is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with rasdaman community.  If not, see <http://www.gnu.org/licenses/>.
+*
+* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
+rasdaman GmbH.
+*
+* For more information please see <http://www.rasdaman.org>
+* or contact Peter Baumann via <baumann@rasdaman.com>.
+*/
+/** ***********************************************************
+ * <pre>
+ *
+ * PURPOSE:
+ *  This class represents a MArray with base type double.
+ *  @version $Revision: 1.5 $
+ *  method intersectionWith(RasMInterval) uses byte array and is not optimized for special data arrays
+ *
+ *
+ * COMMENTS:
+ *
+ * </pre>
+ *********************************************************** */
+
+
+public class RasMArrayDouble extends RasGMArray
+{
+
+  /** default constructor */
+  public RasMArrayDouble()
+    {
+	super();
+	typeLength = SIZE_OF_DOUBLE;
+    }
+
+    /**
+     * constructor for uninitialized MDD objects
+     * @param initDomain The initial Domain of the MArray
+     */
+  public RasMArrayDouble(final RasMInterval initDomain)
+    {
+	super(initDomain, SIZE_OF_DOUBLE);
+        objectData = new double[(int)(dataSize/SIZE_OF_DOUBLE)];
+        data = null;
+    }
+
+  /**
+    * Constructor for uninitialized MDD objects with Storage Layout
+    * @param initDomain The initial Domain of the MArray
+    * @param RasStorageLayout The storage layout to be used
+    */
+  public RasMArrayDouble(final RasMInterval initDomain, RasStorageLayout stl)
+    {
+        super(initDomain, SIZE_OF_DOUBLE, stl);
+        objectData = new double[(int)(dataSize/SIZE_OF_DOUBLE)];
+        data = null;
+    }
+
+  /**
+   * copy constructor
+   * @param obj a copy of this object will be created
+   */
+  public RasMArrayDouble(final RasMArrayDouble obj)
+    {
+	super(obj);
+        if(obj.objectData!=null)
+        {
+          objectData = new double[(int)(obj.dataSize/SIZE_OF_DOUBLE)];
+          System.arraycopy(obj.getDoubleArray(), 0, objectData, 0, (int)(obj.dataSize/SIZE_OF_DOUBLE));
+          data = null;
+        }
+    }
+
+  /**
+   * subscript operator for read access of a cell. The cell value is returned
+   * as a byte[4] array. This kind of access to a cell is significantly slower
+   * than getDouble(), because each cell value has to be converted from double to a
+   * byte[SIZE_OF_DOUBLE] array.
+   * The user has to take care that each Cell value is stored, before getting the next Cell.
+   */
+  public byte[] getCell(RasPoint point)
+         throws RasDimensionMismatchException, RasIndexOutOfBoundsException
+    {
+	double cellValue;
+	long tmp;
+
+	//first test dimensionality
+	if(point.dimension() != domain.dimension())
+  	  throw new RasDimensionMismatchException(point.dimension(), domain.dimension());
+
+	cellValue = ((double[])objectData)[(int)domain.cellOffset(point)];
+        for(int i=0; i<SIZE_OF_DOUBLE; i++)
+	{
+	    tmp = Double.doubleToRawLongBits(cellValue);
+	    tmp >>>= (((SIZE_OF_DOUBLE -1)-i)*8);
+	    currentCell[i] = (byte)tmp;
+	}
+
+	return currentCell;
+    }
+
+  /** subscript operator for read access of a cell. The cell value is returned as
+   * an double. This access method is faster then getCell(), because no conversion
+   * from double to Byte[SIZE_OF_DOUBLE] has to be done.
+   */
+  public double getDouble(final RasPoint point)
+         throws RasDimensionMismatchException, RasIndexOutOfBoundsException
+    {
+      // first test dimensionality
+      if(point.dimension() != domain.dimension())
+        throw new RasDimensionMismatchException(point.dimension(), domain.dimension());
+
+      return ((double[])objectData)[(int)domain.cellOffset(point)];
+    }
+
+  /**
+   * get the internal representation of the array
+   */
+  public double[] getDoubleArray()
+    {
+      if(objectData==null)
+      {
+        ByteArrayInputStream bis = new ByteArrayInputStream(data);
+        DataInputStream dis = new DataInputStream(bis);
+        objectData = new double[data.length/SIZE_OF_DOUBLE];
+        try
+        {
+          for(int j=0; j<data.length/SIZE_OF_DOUBLE; j++)
+          {
+            ((double[])objectData)[j] = dis.readDouble();
+          }
+        }
+        catch(IOException e)
+        {
+          throw new RasClientInternalException("RasMArrayDouble", "getDoubleArray()",
+          "IOException while converting data to objectData array " + e.getMessage());
+        }
+      }
+      return (double[])objectData;
+    }
+
+  /** get the internal representation of the array in bytes,
+   *  please use getDoubleArray()
+   */
+  public byte[] getArray()
+    {
+      if(data==null)
+      {
+        ByteArrayOutputStream bos = new ByteArrayOutputStream();
+        DataOutputStream dos = new DataOutputStream(bos);
+        try
+        {
+          for(int j=0; j<((double[])objectData).length; j++)
+            dos.writeDouble(((double[])objectData)[j]);
+        }
+        catch(IOException e)
+        {
+          throw new RasClientInternalException("RasMArrayDouble", "getArray()",
+          "IOException while converting objectData to data array " + e.getMessage());
+        }
+        data = bos.toByteArray();
+      }
+      return data;
+    }
+
+  /** set the internal representation of the array */
+  public void setArray(double[] newData)
+    {
+      objectData = newData;
+      data = null;
+      dataSize = newData.length * SIZE_OF_DOUBLE;
+    }
+
+}
+
-- 
cgit