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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.ByteOrder;
import java.nio.LongBuffer;
/**
* Concrete implementation of Array specialized for longs.
* Data storage is with 1D java array of longs.
*
* issues: what should we do if a conversion loses accuracy? nothing ? Exception ?
*
* @see Array
* @author caron
*/
public class ArrayLong extends Array {
/** package private. use Array.factory() */
static ArrayLong factory(Index index, boolean isUnsigned) {
return ArrayLong.factory(index, isUnsigned, null);
}
/* create new ArrayLong with given indexImpl and backing store.
* @param index use this Index
* @param stor. use this storage. if null, allocate.
* @return. new ArrayLong.D or ArrayLong object.
*/
static ArrayLong factory( Index index, boolean isUnsigned, long [] storage) {
if (index instanceof Index0D) {
return new ArrayLong.D0(index, isUnsigned, storage);
} else if (index instanceof Index1D) {
return new ArrayLong.D1(index, isUnsigned, storage);
} else if (index instanceof Index2D) {
return new ArrayLong.D2(index, isUnsigned, storage);
} else if (index instanceof Index3D) {
return new ArrayLong.D3(index, isUnsigned, storage);
} else if (index instanceof Index4D) {
return new ArrayLong.D4(index, isUnsigned, storage);
} else if (index instanceof Index5D) {
return new ArrayLong.D5(index, isUnsigned, storage);
} else if (index instanceof Index6D) {
return new ArrayLong.D6(index, isUnsigned, storage);
} else if (index instanceof Index7D) {
return new ArrayLong.D7(index, isUnsigned, storage);
} else {
return new ArrayLong(index, isUnsigned, storage);
}
}
//////////////////////////////////////////////////////
protected long[] storage;
/**
* Create a new Array of type long and the given shape.
* dimensions.length determines the rank of the new Array.
* @param dimensions the shape of the Array.
*/
public ArrayLong(int [] dimensions, boolean isUnsigned) {
super(isUnsigned ? DataType.ULONG : DataType.LONG, dimensions);
storage = new long[(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
*/
ArrayLong(Index ima, boolean isUnsigned, long [] data) {
super(isUnsigned ? DataType.ULONG : DataType.LONG, ima);
/* replace by something better
if (ima.getSize() != data.length)
throw new IllegalArgumentException("bad data length"); */
if (data != null)
storage = data;
else
storage = new long[(int)ima.getSize()];
}
/** create new Array with given indexImpl and same backing store */
protected Array createView( Index index) {
return ArrayLong.factory( index, isUnsigned(), 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) {
long[] ja = (long []) javaArray;
for (long aJa : ja) iter.setLongNext(aJa);
}
// copy to javaArray from storage using the iterator: used by copyToNDJavaArray;
protected void copyTo1DJavaArray(IndexIterator iter, Object javaArray) {
long[] ja = (long []) javaArray;
for (int i=0; i