/**
 * =============================================================================
 *
 * ORCID (R) Open Source
 * http://orcid.org
 *
 * Copyright (c) 2012-2014 ORCID, Inc.
 * Licensed under an MIT-Style License (MIT)
 * http://orcid.org/open-source-license
 *
 * This copyright and license information (including a link to the full license)
 * shall be included in its entirety in all copies or substantial portion of
 * the software.
 *
 * =============================================================================
 */
package org.orcid.core.web.filters;

import java.io.ByteArrayOutputStream;
import java.io.PrintWriter;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpServletResponseWrapper;

/**
 * Extends HttpServletResponseWrapper for JsonpCallbackFilter 
 * 
 * @author Robert Peters (rcpeters)
 *
 */

public class GenericResponseWrapper extends HttpServletResponseWrapper {

    private ByteArrayOutputStream output;
    private int contentLength;
    private String contentType;

    public GenericResponseWrapper(HttpServletResponse response) {
        super(response);

        output = new ByteArrayOutputStream();
    }

    public byte[] getData() {
        return output.toByteArray();
    }

    public ServletOutputStream getOutputStream() {
        return new FilterServletOutputStream(output);
    }

    public PrintWriter getWriter() {
        return new PrintWriter(getOutputStream(), true);
    }

    public void setContentLength(int length) {
        this.contentLength = length;
        super.setContentLength(length);
    }

    public int getContentLength() {
        return contentLength;
    }

    public void setContentType(String type) {
        this.contentType = type;
        super.setContentType(type);
    }

    public String getContentType() {
        return contentType;
    }
}