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package org.scijava.util;

import java.util.Collection;

/**

* An extensible array of {@code byte} elements.

*

* @author Johannes Schindelin

* @author Curtis Rueden

*/

public class ByteArray extends AbstractPrimitiveArray<byte[], Byte> {

/** The backing array. */

private byte[] array;

/**

* Constructs an extensible array of bytes, backed by a fixed-size array.

*/

public ByteArray() {

super(Byte.TYPE);

}

/**

* Constructs an extensible array of bytes, backed by a fixed-size array.

*

* @param size the initial size

*/

public ByteArray(final int size) {

super(Byte.TYPE, size);

}

/**

* Constructs an extensible array of bytes, backed by the given fixed-size

* array.

*

* @param array the array to wrap

*/

public ByteArray(final byte[] array) {

super(Byte.TYPE, array);

}

// -- ByteArray methods --

public void addValue(final byte value) {

addValue(size(), value);

}

public boolean removeValue(final byte value) {

final int index = indexOf(value);

if (index < 0) return false;

delete(index, 1);

return true;

}

public byte getValue(final int index) {

checkBounds(index);

return array[index];

}

public byte setValue(final int index, final byte value) {

checkBounds(index);

final byte oldValue = getValue(index);

array[index] = value;

return oldValue;

}

public void addValue(final int index, final byte value) {

insert(index, 1);

array[index] = value;

}

public int indexOf(final byte value) {

for (int i = 0; i < size(); i++) {

if (array[i] == value) return i;

}

return -1;

}

public int lastIndexOf(final byte value) {

for (int i = size() - 1; i >= 0; i--) {

if (array[i] == value) return i;

}

return -1;

}

public boolean contains(final byte value) {

return indexOf(value) >= 0;

}

// -- PrimitiveArray methods --

@Override

public byte[] getArray() {

return array;

}

@Override

public void setArray(final byte[] array) {

if (array.length < size()) {

throw new IllegalArgumentException("Array too small");

}

this.array = array;

}

// -- List methods --

@Override

public Byte get(final int index) {

return getValue(index);

}

@Override

public Byte set(final int index, final Byte element) {

return setValue(index, element == null ? defaultValue() : element);

}

@Override

public void add(final int index, final Byte element) {

addValue(index, element);

}

// NB: Overridden for performance.

@Override

public int indexOf(final Object o) {

if (!(o instanceof Byte)) return -1;

final byte value = (Byte) o;

return indexOf(value);

}

// NB: Overridden for performance.

@Override

public int lastIndexOf(final Object o) {

if (!(o instanceof Byte)) return -1;

final byte value = (Byte) o;

return lastIndexOf(value);

}

// -- Collection methods --

// NB: Overridden for performance.

@Override

public boolean contains(final Object o) {

if (!(o instanceof Byte)) return false;

final byte value = (Byte) o;

return contains(value);

}

// NB: Overridden for performance.

@Override

public boolean remove(final Object o) {

if (!(o instanceof Byte)) return false;

final byte value = (Byte) o;

return removeValue(value);

}

// NB: Overridden for performance.

@Override

public boolean containsAll(final Collection<?> c) {

for (final Object o : c) {

if (!(o instanceof Byte)) return false;

final byte value = (Byte) o;

if (indexOf(value) < 0) return false;

}

return true;

}

// NB: Overridden for performance.

@Override

public boolean addAll(final int index, final Collection<? extends Byte> c)

{

if (c.size() == 0) return false;

insert(index, c.size());

int i = index;

for (final byte e : c) {

setValue(i++, e);

}

return true;

}

// NB: Overridden for performance.

@Override

public boolean removeAll(final Collection<?> c) {

boolean changed = false;

for (final Object o : c) {

if (!(o instanceof Byte)) continue;

final byte value = (Byte) o;

final boolean result = removeValue(value);

if (result) changed = true;

}

return changed;

}

@Override

public Byte defaultValue() {

return 0;

}

}