com.liferay.util.servlet.ServletResponseUtil.java Source code

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Here is the source code for com.liferay.util.servlet.ServletResponseUtil.java

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/**
 * Copyright (c) 2000-2005 Liferay, LLC. All rights reserved.
 *
 * 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 com.liferay.util.servlet;

import java.io.IOException;

import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.liferay.util.HttpHeaders;
import com.liferay.util.Validator;

/**
 * <a href="ServletResponseUtil.java.html"><b><i>View Source</i></b></a>
 *
 * @author  Brian Wing Shun Chan
 * @version $Revision: 1.3 $
 *
 */
public class ServletResponseUtil {

    public static final String DEFAULT_CONTENT_TYPE = "application/octet-stream";

    public static void sendFile(HttpServletResponse res, String fileName, byte[] byteArray) throws IOException {

        sendFile(res, fileName, byteArray, DEFAULT_CONTENT_TYPE);
    }

    public static void sendFile(HttpServletResponse res, String fileName, byte[] byteArray, String contentType)
            throws IOException {

        _log.debug("Sending file of type " + contentType);

        res.setContentType(contentType);

        res.setHeader(HttpHeaders.CACHE_CONTROL, HttpHeaders.PUBLIC);
        res.setHeader(HttpHeaders.PRAGMA, HttpHeaders.PUBLIC);

        if (Validator.isNotNull(fileName)) {
            res.setHeader(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=\"" + fileName + "\"");
        }

        res.getOutputStream().write(byteArray);
        res.getOutputStream().flush();
    }

    private static final Log _log = LogFactory.getLog(ServletResponseUtil.class);

}