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/*
* Copyright (c) 1998-2018 University Corporation for Atmospheric Research/Unidata
* See LICENSE for license information.
*/
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 or ArrayFloat object.
*/
static ArrayFloat factory( Index index, float [] storage) {
if (index instanceof Index0D) {
return new ArrayFloat.D0(index, storage);
} else if (index instanceof Index1D) {
return new ArrayFloat.D1(index, storage);
} else if (index instanceof Index2D) {
return new ArrayFloat.D2(index, storage);
} else if (index instanceof Index3D) {
return new ArrayFloat.D3(index, storage);
} else if (index instanceof Index4D) {
return new ArrayFloat.D4(index, storage);
} else if (index instanceof Index5D) {
return new ArrayFloat.D5(index, storage);
} else if (index instanceof Index6D) {
return new ArrayFloat.D6(index, storage);
} else if (index instanceof Index7D) {
return new ArrayFloat.D7(index, storage);
} else {
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(DataType.FLOAT, 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(DataType.FLOAT, 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