/*******************************************************************************
 * Open Behavioral Health Information Technology Architecture (OBHITA.org)
 *   
 *   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 the <organization> 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 <COPYRIGHT HOLDER> 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 gov.samhsa.acs.common.tool;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * The Class FileReader.
 */
public class FileReaderImpl implements FileReader {

	/** The logger. */
	private final Logger logger = LoggerFactory.getLogger(this.getClass());

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * gov.samhsa.consent2share.accesscontrolservice.documentsegmentation.util
	 * .FileReader#readFile(java.lang.Object, java.lang.String)
	 */
	@Override
	public String readFile(String filename) throws IOException {
		InputStream is = getClass().getClassLoader().getResourceAsStream(
				filename);

		return readInputStreamAsString(is);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * gov.samhsa.acs.common.tool.FileReader#readInputStreamAsString(java.io
	 * .InputStream)
	 */
	@Override
	public String readInputStreamAsString(InputStream inputStream) {
		BufferedReader br = null;
		StringBuilder sb = new StringBuilder();

		String line;
		try {
			br = new BufferedReader(new InputStreamReader(inputStream));
			while ((line = br.readLine()) != null) {
				if (sb.length() > 0) {
					sb.append("\n");
				}
				sb.append(line);
			}
		} catch (IOException e) {
			logger.error(e.getMessage(), e);
		} finally {
			if (br != null) {
				try {
					br.close();
				} catch (IOException e) {
					logger.error(e.getMessage(), e);
				}
			}
			if (inputStream != null) {
				try {
					inputStream.close();
				} catch (Exception e) {
					logger.error(e.getMessage(), e);
				}
			}
		}
		return sb.toString();
	}
}