IOUtils.java

/*
 * Copyright (c) 2014 Magnet Systems, Inc.
 * All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you
 * may not use this file except in compliance with the License. You
 * may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */

package com.magnet.plugin.r2m.helpers;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.charset.Charset;

public class IOUtils {

	public static byte[] toByteArray(InputStream inputStream) throws IOException {
		// this dynamically extends to take the bytes you read
		ByteArrayOutputStream byteBuffer = new ByteArrayOutputStream();

		// this is storage overwritten on each iteration with bytes
		int bufferSize = 1024;
		byte[] buffer = new byte[bufferSize];

		// we need to know how may bytes were read to write them to the
		// byteBuffer
		int len = 0;
		while ((len = inputStream.read(buffer)) != -1) {
			byteBuffer.write(buffer, 0, len);
		}

		// and then we can return your byte array.
		return byteBuffer.toByteArray();
	}

	public static String toString(InputStream is) throws IOException {
		StringBuilder result = new StringBuilder();
		InputStreamReader in = new InputStreamReader(is);
        ByteArrayOutputStream buffer = new ByteArrayOutputStream();

        int nRead;
        byte[] data = new byte[16384];

        while ((nRead = is.read(data, 0, data.length)) != -1) {
            buffer.write(data, 0, nRead);
        }

        buffer.flush();


		return new String(buffer.toByteArray(), Charset.forName("UTF-8"));
	}

}