zkoss/zk

/* ResourceHttpServletResponse.java

{{IS_NOTE
    Purpose:
        
    Description:
        
    History:
        Feb 6, 2013 2:29:00 PM , Created by Vincent
}}IS_NOTE

Copyright (C) 2013 Potix Corporation. All Rights Reserved.

{{IS_RIGHT
    This program is distributed under LGPL Version 3.0 in the hope that
    it will be useful, but WITHOUT ANY WARRANTY.
}}IS_RIGHT
*/
package org.zkoss.web.portlet;

import java.util.Collection;

import javax.portlet.ResourceResponse;
import javax.servlet.http.HttpServletResponse;

import org.zkoss.web.servlet.ServletOutputStreamWrapper;

/**
 * A facade of ResourceResponse that implements HttpServletResponse.
 * 
 * @author Vincent
 * @since 6.5.2
 */
public class ResourceHttpServletResponse implements HttpServletResponse {
    private final ResourceResponse _res;

    public static HttpServletResponse getInstance(ResourceResponse res) {
        if (res instanceof HttpServletResponse)
            return (HttpServletResponse) res;
        return new ResourceHttpServletResponse(res);
    }

    private ResourceHttpServletResponse(ResourceResponse res) {
        if (res == null)
            throw new IllegalArgumentException("null");
        _res = res;
    }

    //-- ServletResponse --//
    public void flushBuffer() throws java.io.IOException {
        _res.flushBuffer();
    }

    public int getBufferSize() {
        return _res.getBufferSize();
    }

    public String getCharacterEncoding() {
        return _res.getCharacterEncoding();
    }

    public String getContentType() {
        return _res.getContentType();
    }

    public java.util.Locale getLocale() {
        return _res.getLocale();
    }

    public javax.servlet.ServletOutputStream getOutputStream() throws java.io.IOException {
        return ServletOutputStreamWrapper.getInstance(_res.getPortletOutputStream());
    }

    public java.io.PrintWriter getWriter() throws java.io.IOException {
        //Bug 1548478: content-type is required for some implementation (JBoss Portal)
        if (_res.getContentType() == null)
            _res.setContentType("text/html;charset=UTF-8");
        return _res.getWriter();
    }

    public boolean isCommitted() {
        return _res.isCommitted();
    }

    public void reset() {
        _res.reset();
    }

    public void resetBuffer() {
        _res.resetBuffer();
    }

    public void setBufferSize(int size) {
        _res.setBufferSize(size);
    }

    public void setCharacterEncoding(String charset) {
    }

    public void setContentLength(int len) {
    }

    public void setContentType(String type) {
        _res.setContentType(type);
    }

    public void setLocale(java.util.Locale loc) {
    }

    //-- HttpServletResponse --//
    public void addCookie(javax.servlet.http.Cookie cookie) {
    }

    public void addDateHeader(String name, long date) {
    }

    public void addHeader(String name, String value) {
    }

    public void addIntHeader(String name, int value) {
    }

    public boolean containsHeader(String name) {
        return false;
    }

    /**
     * @deprecated
     */
    public String encodeRedirectUrl(String url) {
        return encodeRedirectURL(url);
    }

    public String encodeRedirectURL(String url) {
        return encodeURL(url); //try our best
    }

    /**
     * @deprecated
     */
    public String encodeUrl(String url) {
        return encodeURL(url);
    }

    public String encodeURL(String url) {
        return _res.encodeURL(url);
    }

    public void sendError(int sc) {
    }

    public void sendError(int sc, String msg) {
    }

    public void sendRedirect(String location) {
    }

    public void setDateHeader(String name, long date) {
    }

    public void setHeader(String name, String value) {
    }

    public void setIntHeader(String name, int value) {
    }

    public void setStatus(int sc) {
    }

    /**
     * @deprecated
     */
    public void setStatus(int sc, String sm) {
    }

    public int getStatus() {
        return 0;
    }

    public String getHeader(String s) {
        return null;
    }

    public Collection<String> getHeaders(String s) {
        return null;
    }

    public Collection<String> getHeaderNames() {
        return null;
    }

    public void setContentLengthLong(long l) {

    }

    //Object//
    public int hashCode() {
        return _res.hashCode();
    }

    public boolean equals(Object o) {
        if (this == o)
            return true;
        ResourceResponse val = o instanceof ResourceResponse ? (ResourceResponse) o
                : o instanceof ResourceHttpServletResponse ? ((ResourceHttpServletResponse) o)._res : null;
        return val != null && val.equals(_res);
    }
}