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SciJava Common is a shared library for SciJava software. It provides a plugin framework, with an extensible mechanism for service discovery, backed by its own annotation processor, so that plugins can be loaded dynamically. It is used by downstream projects in the SciJava ecosystem, such as ImageJ and SCIFIO.

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/*
 * #%L
 * SciJava Common shared library for SciJava software.
 * %%
 * Copyright (C) 2009 - 2017 Board of Regents of the University of
 * Wisconsin-Madison, Broad Institute of MIT and Harvard, and Max Planck
 * Institute of Molecular Cell Biology and Genetics.
 * %%
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 */

package org.scijava.util;

import java.util.Collection;

/**
 * An extensible array of {@code char} elements.
 * 
 * @author Mark Hiner
 * @author Johannes Schindelin
 * @author Curtis Rueden
 */
public class CharArray extends AbstractPrimitiveArray {

	/** The backing array. */
	private char[] array;

	/**
	 * Constructs an extensible array of chars, backed by a fixed-size array.
	 */
	public CharArray() {
		super(Character.TYPE);
	}

	/**
	 * Constructs an extensible array of chars, backed by a fixed-size array.
	 * 
	 * @param size the initial size
	 */
	public CharArray(final int size) {
		super(Character.TYPE, size);
	}

	/**
	 * Constructs an extensible array of chars, backed by the given fixed-size
	 * array.
	 * 
	 * @param array the array to wrap
	 */
	public CharArray(final char[] array) {
		super(Character.TYPE, array);
	}

	// -- CharArray methods --

	public void addValue(final char value) {
		addValue(size(), value);
	}

	public boolean removeValue(final char value) {
		final int index = indexOf(value);
		if (index < 0) return false;
		delete(index, 1);
		return true;
	}

	public char getValue(final int index) {
		checkBounds(index);
		return array[index];
	}

	public char setValue(final int index, final char value) {
		checkBounds(index);
		final char oldValue = getValue(index);
		array[index] = value;
		return oldValue;
	}

	public void addValue(final int index, final char value) {
		insert(index, 1);
		array[index] = value;
	}

	public int indexOf(final char value) {
		for (int i = 0; i < size(); i++) {
			if (array[i] == value) return i;
		}
		return -1;
	}

	public int lastIndexOf(final char value) {
		for (int i = size() - 1; i >= 0; i--) {
			if (array[i] == value) return i;
		}
		return -1;
	}

	public boolean contains(final char value) {
		return indexOf(value) >= 0;
	}

	// -- PrimitiveArray methods --

	@Override
	public char[] getArray() {
		return array;
	}

	@Override
	public void setArray(final char[] array) {
		if (array.length < size()) {
			throw new IllegalArgumentException("Array too small");
		}
		this.array = array;
	}

	// -- List methods --

	@Override
	public Character get(final int index) {
		return getValue(index);
	}

	@Override
	public Character set(final int index, final Character element) {
		return setValue(index, element == null ? defaultValue() : element);
	}

	@Override
	public void add(final int index, final Character element) {
		addValue(index, element);
	}

	// NB: Overridden for performance.
	@Override
	public int indexOf(final Object o) {
		if (!(o instanceof Character)) return -1;
		final char value = (Character) o;
		return indexOf(value);
	}

	// NB: Overridden for performance.
	@Override
	public int lastIndexOf(final Object o) {
		if (!(o instanceof Character)) return -1;
		final char value = (Character) o;
		return lastIndexOf(value);
	}

	// -- Collection methods --

	// NB: Overridden for performance.
	@Override
	public boolean contains(final Object o) {
		if (!(o instanceof Character)) return false;
		final char value = (Character) o;
		return contains(value);
	}

	// NB: Overridden for performance.
	@Override
	public boolean remove(final Object o) {
		if (!(o instanceof Character)) return false;
		final char value = (Character) o;
		return removeValue(value);
	}

	// NB: Overridden for performance.
	@Override
	public boolean containsAll(final Collection c) {
		for (final Object o : c) {
			if (!(o instanceof Character)) return false;
			final char value = (Character) o;
			if (indexOf(value) < 0) return false;
		}
		return true;
	}

	// NB: Overridden for performance.
	@Override
	public boolean addAll(final int index, final Collection c)
	{
		if (c.size() == 0) return false;
		insert(index, c.size());
		int i = index;
		for (final char 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 Character)) continue;
			final char value = (Character) o;
			final boolean result = removeValue(value);
			if (result) changed = true;
		}
		return changed;
	}

	@Override
	public Character defaultValue() {
		return 0;
	}
}




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