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The Apache Commons Codec package contains simple encoder and decoders for
various formats such as Base64 and Hexadecimal. In addition to these
widely used encoders and decoders, the codec package also maintains a
collection of phonetic encoding utilities.
/* ====================================================================
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==================================================================== */
package org.apache.poi.ss.util;
import java.lang.reflect.Array;
import java.util.Iterator;
import java.util.List;
import java.util.stream.Stream;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellRange;
import org.apache.poi.util.Internal;
/**
* For POI internal use only
*/
@Internal
public final class SSCellRange implements CellRange {
private final int _height;
private final int _width;
private final K[] _flattenedArray;
private final int _firstRow;
private final int _firstColumn;
private SSCellRange(int firstRow, int firstColumn, int height, int width, K[] flattenedArray) {
_firstRow = firstRow;
_firstColumn = firstColumn;
_height = height;
_width = width;
_flattenedArray = flattenedArray.clone();
}
public static SSCellRange create(int firstRow, int firstColumn, int height, int width, List flattenedList, Class cellClass) {
int nItems = flattenedList.size();
if (height * width != nItems) {
throw new IllegalArgumentException("Array size mismatch.");
}
@SuppressWarnings("unchecked")
B[] flattenedArray = (B[]) Array.newInstance(cellClass, nItems);
flattenedList.toArray(flattenedArray);
return new SSCellRange<>(firstRow, firstColumn, height, width, flattenedArray);
}
@Override
public int getHeight() {
return _height;
}
@Override
public int getWidth() {
return _width;
}
@Override
public int size() {
return _height*_width;
}
@Override
public String getReferenceText() {
CellRangeAddress cra = new CellRangeAddress(_firstRow, _firstRow+_height-1, _firstColumn, _firstColumn+_width-1);
return cra.formatAsString();
}
@Override
public K getTopLeftCell() {
return _flattenedArray[0];
}
@Override
public K getCell(int relativeRowIndex, int relativeColumnIndex) {
if (relativeRowIndex < 0 || relativeRowIndex >= _height) {
throw new ArrayIndexOutOfBoundsException("Specified row " + relativeRowIndex
+ " is outside the allowable range (0.." + (_height-1) + ").");
}
if (relativeColumnIndex < 0 || relativeColumnIndex >= _width) {
throw new ArrayIndexOutOfBoundsException("Specified colummn " + relativeColumnIndex
+ " is outside the allowable range (0.." + (_width-1) + ").");
}
int flatIndex = _width * relativeRowIndex + relativeColumnIndex;
return _flattenedArray[flatIndex];
}
@Override
public K[] getFlattenedCells() {
return _flattenedArray.clone();
}
@Override
public K[][] getCells() {
Class itemCls = _flattenedArray.getClass();
@SuppressWarnings("unchecked")
K[][] result = (K[][]) Array.newInstance(itemCls, _height);
itemCls = itemCls.getComponentType();
for (int r=_height-1; r>=0; r--) {
@SuppressWarnings("unchecked")
K[] row = (K[]) Array.newInstance(itemCls, _width);
int flatIndex = _width * r;
System.arraycopy(_flattenedArray, flatIndex, row, 0, _width);
}
return result;
}
@Override
public Iterator iterator() {
return Stream.of(_flattenedArray).iterator();
}
}