juneau-core/juneau-core-utest/src/test/java/org/apache/juneau/CloseableStringReader.java

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// * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance            *
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// *  http://www.apache.org/licenses/LICENSE-2.0                                                                             *
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package org.apache.juneau;

import java.io.*;

/**
 * A StringReader with a usable close() method.
 */
public class CloseableStringReader extends StringReader {
	boolean isClosed;

	public CloseableStringReader(String in) {
		super(in);
	}

	@Override
	public int read() throws IOException {
		if (isClosed)
			throw new RuntimeException("Reader is closed");
		return super.read();
	}

	@Override
	public int read(char[] cbuf, int off, int len) throws IOException {
		if (isClosed)
			throw new RuntimeException("Reader is closed");
		return super.read(cbuf, off, len);
	}

	@Override
	public void close() {
		isClosed = true;
	}
}