HTTPStatus.java

/******************************************************************
 *
 * CyberHTTP for Java
 *
 * Copyright (C) Satoshi Konno 2002
 *
 * File: HTTPStatus.java
 *
 * Revision;
 *
 * 12/17/02 - first revision. 09/03/03 - Added CONTINUE_STATUS. 10/20/04 - Brent
 * Hills <bhills@openshores.com> - Added PARTIAL_CONTENT and INVALID_RANGE;
 * 10/22/04 - Added isSuccessful(). 10/29/04 - Fixed set() to set the version
 * and the response code when the mothod is null. - Fixed set() to read multi
 * words of the response sring such as Not Found.
 *
 ******************************************************************/

package com.guo.duoduo.airplayreceiver.http;


import java.util.StringTokenizer;

import com.guo.duoduo.airplayreceiver.utils.Debug;


public class HTTPStatus
{
    ////////////////////////////////////////////////
    //	Code
    ////////////////////////////////////////////////

    public static final int CONTINUE = 100;
    public static final int OK = 200;
    public static final int SWITCH_PROTOCOL = 101;
    //	Thanks for Brent Hills (10/20/04)
    public static final int PARTIAL_CONTENT = 206;
    public static final int BAD_REQUEST = 400;
    public static final int NOT_FOUND = 404;
    public static final int PRECONDITION_FAILED = 412;
    //	Thanks for Brent Hills (10/20/04)
    public static final int INVALID_RANGE = 416;
    public static final int INTERNAL_SERVER_ERROR = 500;
    private String version = "";

    ////////////////////////////////////////////////
    //	Constructor
    ////////////////////////////////////////////////
    private int statusCode = 0;
    private String reasonPhrase = "";

    public HTTPStatus()
    {
        setVersion("");
        setStatusCode(0);
        setReasonPhrase("");
    }

    ////////////////////////////////////////////////
    //	Member
    ////////////////////////////////////////////////

    public HTTPStatus(String ver, int code, String reason)
    {
        setVersion(ver);
        setStatusCode(code);
        setReasonPhrase(reason);
    }

    public HTTPStatus(String lineStr)
    {
        set(lineStr);
    }

    public static final String code2String(int code)
    {
        switch (code)
        {
            case CONTINUE :
                return "Continue";
            case OK :
                return "OK";
            case PARTIAL_CONTENT :
                return "Partial Content";
            case BAD_REQUEST :
                return "Bad Request";
            case NOT_FOUND :
                return "Not Found";
            case PRECONDITION_FAILED :
                return "Precondition Failed";
            case INVALID_RANGE :
                return "Invalid Range";
            case INTERNAL_SERVER_ERROR :
                return "Internal Server Error";
            case SWITCH_PROTOCOL :
                return "Switching Protocols";
        }
        return "";
    }

    final public static boolean isSuccessful(int statCode)
    {
        if (200 <= statCode && statCode < 300)
            return true;
        return false;
    }

    public String getVersion()
    {
        return version;
    }

    public void setVersion(String value)
    {
        version = value;
    }

    public int getStatusCode()
    {
        return statusCode;
    }

    public void setStatusCode(int value)
    {
        statusCode = value;
    }

    public String getReasonPhrase()
    {
        return reasonPhrase;
    }

    ////////////////////////////////////////////////
    //	Status
    ////////////////////////////////////////////////

    public void setReasonPhrase(String value)
    {
        reasonPhrase = value;
    }

    public boolean isSuccessful()
    {
        return isSuccessful(getStatusCode());
    }

    ////////////////////////////////////////////////
    //	set
    ////////////////////////////////////////////////

    public void set(String lineStr)
    {
        if (lineStr == null)
        {
            setVersion(HTTP.VERSION);
            setStatusCode(INTERNAL_SERVER_ERROR);
            setReasonPhrase(code2String(INTERNAL_SERVER_ERROR));
            return;
        }

        try
        {
            StringTokenizer st = new StringTokenizer(lineStr, HTTP.STATUS_LINE_DELIM);

            if (st.hasMoreTokens() == false)
                return;
            String ver = st.nextToken();
            setVersion(ver.trim());

            if (st.hasMoreTokens() == false)
                return;
            String codeStr = st.nextToken();
            int code = 0;
            try
            {
                code = Integer.parseInt(codeStr);
            }
            catch (Exception e1)
            {
            }
            setStatusCode(code);

            String reason = "";
            while (st.hasMoreTokens() == true)
            {
                if (0 <= reason.length())
                    reason += " ";
                reason += st.nextToken();
            }
            setReasonPhrase(reason.trim());
        }
        catch (Exception e)
        {
            Debug.warning(e);
        }

    }
}