/*
* Copyright 1998-2014 University Corporation for Atmospheric Research/Unidata
*
* Portions of this software were developed by the Unidata Program at the
* University Corporation for Atmospheric Research.
*
* Access and use of this software shall impose the following obligations
* and understandings on the user. The user is granted the right, without
* any fee or cost, to use, copy, modify, alter, enhance and distribute
* this software, and any derivative works thereof, and its supporting
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* notice appears in all copies of the software, derivative works and
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*
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* WITH THE ACCESS, USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package ucar.ma2;
import java.nio.ByteBuffer;
import java.nio.FloatBuffer;
/**
* Concrete implementation of Array specialized for floats.
* Data storage is with 1D java array of floats.
*
* issues: what should we do if a conversion loses accuracy? nothing ? Exception ?
*
* @see Array
* @author caron
*/
public class ArrayFloat extends Array {
/** package private. use Array.factory() */
static ArrayFloat factory(Index index) {
return ArrayFloat.factory(index, null);
}
/* create new ArrayFloat with given indexImpl and backing store.
* Should be private.
* @param index use this Index
* @param stor. use this storage. if null, allocate.
* @return. new ArrayFloat.D<rank> or ArrayFloat object.
*/
static ArrayFloat factory( Index index, float [] storage) {
switch (index.getRank()) {
case 0 : return new ArrayFloat.D0(index, storage);
case 1 : return new ArrayFloat.D1(index, storage);
case 2 : return new ArrayFloat.D2(index, storage);
case 3 : return new ArrayFloat.D3(index, storage);
case 4 : return new ArrayFloat.D4(index, storage);
case 5 : return new ArrayFloat.D5(index, storage);
case 6 : return new ArrayFloat.D6(index, storage);
case 7 : return new ArrayFloat.D7(index, storage);
default : return new ArrayFloat(index, storage);
}
}
//////////////////////////////////////////////////////
protected float[] storage;
/**
* Create a new Array of type float and the given shape.
* dimensions.length determines the rank of the new Array.
* @param dimensions the shape of the Array.
*/
public ArrayFloat(int [] dimensions) {
super(dimensions);
storage = new float[(int) indexCalc.getSize()];
}
/**
* Create a new Array using the given IndexArray and backing store.
* used for sections. Trusted package private.
* @param ima use this IndexArray as the index
* @param data use this as the backing store
*/
ArrayFloat(Index ima, float [] data) {
super(ima);
/* replace by something better
if (ima.getSize() != data.length)
throw new IllegalArgumentException("bad data length"); */
if (data != null)
storage = data;
else
storage = new float[(int)ima.getSize()];
}
/** create new Array with given indexImpl and same backing store */
protected Array createView( Index index) {
return ArrayFloat.factory( index, storage);
}
/* Get underlying primitive array storage. CAUTION! You may invalidate your warrentee! */
public Object getStorage() { return storage; }
// copy from javaArray to storage using the iterator: used by factory( Object);
protected void copyFrom1DJavaArray(IndexIterator iter, Object javaArray) {
float[] ja = (float []) javaArray;
for (float aJa : ja) iter.setFloatNext(aJa);
}
// copy to javaArray from storage using the iterator: used by copyToNDJavaArray;
protected void copyTo1DJavaArray(IndexIterator iter, Object javaArray) {
float[] ja = (float []) javaArray;
for (int i=0; i<ja.length; i++)
ja[i] = iter.getFloatNext();
}
public ByteBuffer getDataAsByteBuffer() {
ByteBuffer bb = ByteBuffer.allocate((int)(4*getSize()));
FloatBuffer ib = bb.asFloatBuffer();
ib.put( (float[]) get1DJavaArray(float.class)); // make sure its in canonical order
return bb;
}
/** Return the element class type */
public Class getElementType() { return float.class; }
/** get the value at the specified index. */
public float get(Index i) {
return storage[i.currentElement()];
}
/** set the value at the sepcified index. */
public void set(Index i, float value) {
storage[i.currentElement()] = value;
}
public double getDouble(Index i) {
return (double) storage[i.currentElement()];
}
public void setDouble(Index i, double value) {
storage[i.currentElement()] = (float) value;
}
public float getFloat(Index i) {
return storage[i.currentElement()];
}
public void setFloat(Index i, float value) {
storage[i.currentElement()] = value;
}
public long getLong(Index i) {
return (long) storage[i.currentElement()];
}
public void setLong(Index i, long value) {
storage[i.currentElement()] = (float) value;
}
public int getInt(Index i) {
return (int) storage[i.currentElement()];
}
public void setInt(Index i, int value) {
storage[i.currentElement()] = (float) value;
}
public short getShort(Index i) {
return (short) storage[i.currentElement()];
}
public void setShort(Index i, short value) {
storage[i.currentElement()] = (float) value;
}
public byte getByte(Index i) {
return (byte) storage[i.currentElement()];
}
public void setByte(Index i, byte value) {
storage[i.currentElement()] = (float) value;
}
public char getChar(Index i) {
return (char) storage[i.currentElement()];
}
public void setChar(Index i, char value) {
storage[i.currentElement()] = (float) value;
}
/** not legal, throw ForbiddenConversionException */
public boolean getBoolean(Index i) {
throw new ForbiddenConversionException();
}
/** not legal, throw ForbiddenConversionException */
public void setBoolean(Index i, boolean value) {
throw new ForbiddenConversionException();
}
public Object getObject(Index i) {
return storage[i.currentElement()];
}
public void setObject(Index i, Object value) {
storage[i.currentElement()] = ((Number)value).floatValue();
}
// package private : mostly for iterators
public double getDouble(int index) {return (double) storage[index]; }
public void setDouble(int index, double value) { storage[index] = (float) value; }
public float getFloat(int index) {
return storage[index];
}
public void setFloat(int index, float value) { storage[index] = value;}
public long getLong(int index) {return (long) storage[index];}
public void setLong(int index, long value) { storage[index] = (float) value;}
public int getInt(int index) { return (int) storage[index]; }
public void setInt(int index, int value) { storage[index] = (float) value;}
public short getShort(int index) { return (short) storage[index]; }
public void setShort(int index, short value) { storage[index] = (float) value; }
public byte getByte(int index) { return (byte) storage[index]; }
public void setByte(int index, byte value) {storage[index] = (float) value;}
public char getChar(int index) { return (char) storage[index];}
public void setChar(int index, char value) { storage[index] = (float) value; }
public boolean getBoolean(int index) { throw new ForbiddenConversionException(); }
public void setBoolean(int index, boolean value) {throw new ForbiddenConversionException(); }
public Object getObject(int index) { return getFloat(index); }
public void setObject(int index, Object value) { storage[index] = ((Number)value).floatValue(); }
/** Concrete implementation of Array specialized for floats, rank 0. */
public static class D0 extends ArrayFloat {
private Index0D ix;
/** Constructor. */
public D0 () {
super(new int [] {});
ix = (Index0D) indexCalc;
}
private D0 (Index i, float[] store) {
super(i, store);
ix = (Index0D) indexCalc;
}
/** get the value. */
public float get() {
return storage[ix.currentElement()];
}
/** set the value. */
public void set(float value) {
storage[ix.currentElement()] = value;
}
}
/** Concrete implementation of Array specialized for floats, rank 1. */
public static class D1 extends ArrayFloat {
private Index1D ix;
/** Constructor for array of shape {len0}. */
public D1 (int len0) {
super(new int [] {len0});
ix = (Index1D) indexCalc;
}
private D1 (Index i, float[] store) {
super(i, store);
ix = (Index1D) indexCalc;
}
/** get the value. */
public float get(int i) {
return storage[ix.setDirect(i)];
}
/** set the value. */
public void set(int i, float value) {
storage[ix.setDirect(i)] = value;
}
}
/** Concrete implementation of Array specialized for floats, rank 2. */
public static class D2 extends ArrayFloat {
private Index2D ix;
/** Constructor for array of shape {len0,len1}. */
public D2 (int len0, int len1) {
super(new int [] {len0, len1});
ix = (Index2D) indexCalc;
}
private D2 (Index i, float[] store) {
super(i, store);
ix = (Index2D) indexCalc;
}
/** get the value. */
public float get(int i, int j) {
return storage[ix.setDirect(i,j)];
}
/** set the value. */
public void set(int i, int j, float value) {
storage[ix.setDirect(i,j)] = value;
}
}
/** Concrete implementation of Array specialized for floats, rank 3. */
public static class D3 extends ArrayFloat {
private Index3D ix;
/** Constructor for array of shape {len0,len1,len2}. */
public D3 (int len0, int len1, int len2) {
super(new int [] {len0, len1, len2});
ix = (Index3D) indexCalc;
}
private D3 (Index i, float[] store) {
super(i, store);
ix = (Index3D) indexCalc;
}
/** get the value. */
public float get(int i, int j, int k) {
return storage[ix.setDirect(i,j,k)];
}
/** set the value. */
public void set(int i, int j, int k, float value) {
storage[ix.setDirect(i,j,k)] = value;
}
}
/** Concrete implementation of Array specialized for floats, rank 4. */
public static class D4 extends ArrayFloat {
private Index4D ix;
/** Constructor for array of shape {len0,len1,len2,len3}. */
public D4 (int len0, int len1, int len2, int len3) {
super(new int [] {len0, len1, len2, len3});
ix = (Index4D) indexCalc;
}
private D4 (Index i, float[] store) {
super(i, store);
ix = (Index4D) indexCalc;
}
/** get the value. */
public float get(int i, int j, int k, int l) {
return storage[ix.setDirect(i,j,k,l)];
}
/** set the value. */
public void set(int i, int j, int k, int l, float value) {
storage[ix.setDirect(i,j,k,l)] = value;
}
}
/** Concrete implementation of Array specialized for floats, rank 5. */
public static class D5 extends ArrayFloat {
private Index5D ix;
/** Constructor for array of shape {len0,len1,len2,len3,len4}. */
public D5 (int len0, int len1, int len2, int len3, int len4) {
super(new int [] {len0, len1, len2, len3, len4});
ix = (Index5D) indexCalc;
}
private D5 (Index i, float[] store) {
super(i, store);
ix = (Index5D) indexCalc;
}
/** get the value. */
public float get(int i, int j, int k, int l, int m) {
return storage[ix.setDirect(i,j,k,l, m)];
}
/** set the value. */
public void set(int i, int j, int k, int l, int m, float value) {
storage[ix.setDirect(i,j,k,l, m)] = value;
}
}
/** Concrete implementation of Array specialized for floats, rank 6. */
public static class D6 extends ArrayFloat {
private Index6D ix;
/** Constructor for array of shape {len0,len1,len2,len3,len4,len5,}. */
public D6 (int len0, int len1, int len2, int len3, int len4, int len5) {
super(new int [] {len0, len1, len2, len3, len4, len5});
ix = (Index6D) indexCalc;
}
private D6 (Index i, float[] store) {
super(i, store);
ix = (Index6D) indexCalc;
}
/** get the value. */
public float get(int i, int j, int k, int l, int m, int n) {
return storage[ix.setDirect(i,j,k,l,m,n)];
}
/** set the value. */
public void set(int i, int j, int k, int l, int m, int n, float value) {
storage[ix.setDirect(i,j,k,l,m,n)] = value;
}
}
/** Concrete implementation of Array specialized for floats, rank 7. */
public static class D7 extends ArrayFloat {
private Index7D ix;
/** Constructor for array of shape {len0,len1,len2,len3,len4,len5,len6}. */
public D7 (int len0, int len1, int len2, int len3, int len4, int len5, int len6) {
super(new int [] {len0, len1, len2, len3, len4, len5, len6});
ix = (Index7D) indexCalc;
}
private D7 (Index i, float[] store) {
super(i, store);
ix = (Index7D) indexCalc;
}
/** get the value. */
public float get(int i, int j, int k, int l, int m, int n, int o) {
return storage[ix.setDirect(i,j,k,l,m,n,o)];
}
/** set the value. */
public void set(int i, int j, int k, int l, int m, int n, int o, float value) {
storage[ix.setDirect(i,j,k,l,m,n,o)] = value;
}
}
}