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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 - 2016 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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 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 */

package org.scijava.util;

import java.util.Collection;

/**
 * An extensible array of {@code float} elements.
 * 
 * @author Johannes Schindelin
 * @author Curtis Rueden
 */
public class FloatArray extends AbstractPrimitiveArray {

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

	/**
	 * Constructs an extensible array of floats, backed by a fixed-size array.
	 */
	public FloatArray() {
		super(Float.TYPE);
	}

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

	/**
	 * Constructs an extensible array of floats, backed by the given fixed-size
	 * array.
	 * 
	 * @param array the array to wrap
	 */
	public FloatArray(final float[] array) {
		super(Float.TYPE, array);
	}

	// -- FloatArray methods --

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

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

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

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

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

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

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

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

	// -- PrimitiveArray methods --

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

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

	// -- List methods --

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

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

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

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

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

	// -- Collection methods --

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

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

	// NB: Overridden for performance.
	@Override
	public boolean containsAll(final Collection c) {
		for (final Object o : c) {
			if (!(o instanceof Float)) return false;
			final float value = (Float) 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 float 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 Float)) continue;
			final float value = (Float) o;
			final boolean result = removeValue(value);
			if (result) changed = true;
		}
		return changed;
	}

	@Override
	public Float defaultValue() {
		return 0.0f;
	}

}




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