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The basic runtime tools and interfaces for intarsys components.
There is a newer version: 4.11
/*
 * Copyright (c) 2007, intarsys consulting GmbH
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 *
 * - 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.
 *
 * - Neither the name of intarsys nor the names of its contributors may be used
 *   to endorse or promote products derived from this software without specific
 *   prior written permission.
 *
 * 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 OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
package de.intarsys.tools.range;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import de.intarsys.tools.number.NumberList;
import de.intarsys.tools.number.NumberParser;
import de.intarsys.tools.number.NumberWrapper;

public class DefinedRange implements IRange {

	public static DefinedRange create(int index) {
		NumberList wrapper = new NumberList();
		wrapper.add(index);
		return new DefinedRange(wrapper);
	}

	public static DefinedRange create(List indices) {
		NumberList wrapper = new NumberList();
		wrapper.addAll(indices);
		return new DefinedRange(wrapper);
	}

	public static DefinedRange create(String stringValue) throws IOException {
		NumberWrapper wrapper = NumberParser.parseInteger(stringValue.trim());
		return new DefinedRange(wrapper);
	}

	private NumberWrapper value;

	public DefinedRange(NumberWrapper value) {
		super();
		this.value = value;
	}

	@Override
	public List getIndices(int current, int count) {
		List indices = new ArrayList();
		for (Iterator it = getValue().iterator(); it.hasNext();) {
			Number number = (Number) it.next();
			int index = number.intValue();
			if (index >= 0 && (index < count || count < 0)) {
				indices.add(index);
			}
		}
		return indices;
	}

	public NumberWrapper getValue() {
		return value;
	}

}