IOUtils.java

package vnet.sms.common.shell.springshell.internal.util;

import java.io.Closeable;
import java.io.IOException;
import java.util.zip.ZipFile;

/**
 * Static helper methods relating to I/O. Inspired by the eponymous class in
 * Apache Commons I/O.
 * 
 * @author Andrew Swan
 * @since 1.2.0
 */
public final class IOUtils {

	/**
	 * Quietly closes each of the given {@link Closeable}s, i.e. eats any
	 * {@link IOException}s arising.
	 * 
	 * @param closeables
	 *            the closeables to close (any of which can be <code>null</code>
	 *            or already closed)
	 */
	public static void closeQuietly(final Closeable... closeables) {
		for (final Closeable closeable : closeables) {
			if (closeable != null) {
				try {
					closeable.close();
				} catch (final IOException e) {
					// Ignore
				}
			}
		}
	}

	/**
	 * Quietly closes each of the given {@link ZipFile}s, i.e. eats any
	 * {@link IOException}s arising.
	 * 
	 * @param zipFiles
	 *            the zipFiles to close (any of which can be <code>null</code>
	 *            or already closed)
	 */
	public static void closeQuietly(final ZipFile... zipFiles) {
		for (final ZipFile zipFile : zipFiles) {
			if (zipFile != null) {
				try {
					zipFile.close();
				} catch (final IOException e) {
					// Ignore
				}
			}
		}
	}

	/**
	 * Constructor is private to prevent instantiation
	 */
	private IOUtils() {
	}
}