AppendableWriter.java

/*
 * Copyright (c) 2009-2015
 * 	IT-Consulting Stephan Schloepke (http://www.schloepke.de/)
 * 	klemm software consulting Mirko Klemm (http://www.klemm-scs.com/)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package org.jbasics.text;

import org.jbasics.checker.ContractCheck;

import java.io.Closeable;
import java.io.Flushable;
import java.io.IOException;
import java.io.Writer;

public class AppendableWriter extends Writer {
	private final Appendable out;

	public AppendableWriter(final Appendable out) {
		this.out = ContractCheck.mustNotBeNull(out, "out");
	}

	@Override
	public void write(final char[] cbuf, final int off, final int len) throws IOException {
		for (int i = 0; i < len; i++) {
			this.out.append(cbuf[off + i]);
		}
	}

	@Override
	public void flush() throws IOException {
		if (this.out instanceof Flushable) {
			((Flushable) this.out).flush();
		}
	}

	@Override
	public void close() throws IOException {
		if (this.out instanceof Closeable) {
			((Closeable) this.out).close();
		}
	}
}