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package net.sf.webdav;
import java.util.Hashtable;
import javax.servlet.http.HttpServletResponse;
/**
* Wraps the HttpServletResponse class to abstract the specific protocol used.
* To support other protocols we would only need to modify this class and the
* WebDavRetCode classes.
*
* @author Marc Eaddy
* @version 1.0, 16 Nov 1997
*/
public class WebdavStatus {
// ----------------------------------------------------- Instance Variables
/**
* This Hashtable contains the mapping of HTTP and WebDAV status codes to
* descriptive text. This is a static variable.
*/
private static Hashtable _mapStatusCodes = new Hashtable();
// ------------------------------------------------------ HTTP Status Codes
/**
* Status code (200) indicating the request succeeded normally.
*/
public static final int SC_OK = HttpServletResponse.SC_OK;
/**
* Status code (201) indicating the request succeeded and created a new
* resource on the server.
*/
public static final int SC_CREATED = HttpServletResponse.SC_CREATED;
/**
* Status code (202) indicating that a request was accepted for processing,
* but was not completed.
*/
public static final int SC_ACCEPTED = HttpServletResponse.SC_ACCEPTED;
/**
* Status code (204) indicating that the request succeeded but that there
* was no new information to return.
*/
public static final int SC_NO_CONTENT = HttpServletResponse.SC_NO_CONTENT;
/**
* Status code (301) indicating that the resource has permanently moved to a
* new location, and that future references should use a new URI with their
* requests.
*/
public static final int SC_MOVED_PERMANENTLY = HttpServletResponse.SC_MOVED_PERMANENTLY;
/**
* Status code (302) indicating that the resource has temporarily moved to
* another location, but that future references should still use the
* original URI to access the resource.
*/
public static final int SC_MOVED_TEMPORARILY = HttpServletResponse.SC_MOVED_TEMPORARILY;
/**
* Status code (304) indicating that a conditional GET operation found that
* the resource was available and not modified.
*/
public static final int SC_NOT_MODIFIED = HttpServletResponse.SC_NOT_MODIFIED;
/**
* Status code (400) indicating the request sent by the client was
* syntactically incorrect.
*/
public static final int SC_BAD_REQUEST = HttpServletResponse.SC_BAD_REQUEST;
/**
* Status code (401) indicating that the request requires HTTP
* authentication.
*/
public static final int SC_UNAUTHORIZED = HttpServletResponse.SC_UNAUTHORIZED;
/**
* Status code (403) indicating the server understood the request but
* refused to fulfill it.
*/
public static final int SC_FORBIDDEN = HttpServletResponse.SC_FORBIDDEN;
/**
* Status code (404) indicating that the requested resource is not
* available.
*/
public static final int SC_NOT_FOUND = HttpServletResponse.SC_NOT_FOUND;
/**
* Status code (500) indicating an error inside the HTTP service which
* prevented it from fulfilling the request.
*/
public static final int SC_INTERNAL_SERVER_ERROR = HttpServletResponse.SC_INTERNAL_SERVER_ERROR;
/**
* Status code (501) indicating the HTTP service does not support the
* functionality needed to fulfill the request.
*/
public static final int SC_NOT_IMPLEMENTED = HttpServletResponse.SC_NOT_IMPLEMENTED;
/**
* Status code (502) indicating that the HTTP server received an invalid
* response from a server it consulted when acting as a proxy or gateway.
*/
public static final int SC_BAD_GATEWAY = HttpServletResponse.SC_BAD_GATEWAY;
/**
* Status code (503) indicating that the HTTP service is temporarily
* overloaded, and unable to handle the request.
*/
public static final int SC_SERVICE_UNAVAILABLE = HttpServletResponse.SC_SERVICE_UNAVAILABLE;
/**
* Status code (100) indicating the client may continue with its request.
* This interim response is used to inform the client that the initial part
* of the request has been received and has not yet been rejected by the
* server.
*/
public static final int SC_CONTINUE = 100;
/**
* Status code (405) indicating the method specified is not allowed for the
* resource.
*/
public static final int SC_METHOD_NOT_ALLOWED = 405;
/**
* Status code (409) indicating that the request could not be completed due
* to a conflict with the current state of the resource.
*/
public static final int SC_CONFLICT = 409;
/**
* Status code (412) indicating the precondition given in one or more of the
* request-header fields evaluated to false when it was tested on the
* server.
*/
public static final int SC_PRECONDITION_FAILED = 412;
/**
* Status code (413) indicating the server is refusing to process a request
* because the request entity is larger than the server is willing or able
* to process.
*/
public static final int SC_REQUEST_TOO_LONG = 413;
/**
* Status code (415) indicating the server is refusing to service the
* request because the entity of the request is in a format not supported by
* the requested resource for the requested method.
*/
public static final int SC_UNSUPPORTED_MEDIA_TYPE = 415;
// -------------------------------------------- Extended WebDav status code
/**
* Status code (207) indicating that the response requires providing status
* for multiple independent operations.
*/
public static final int SC_MULTI_STATUS = 207;
// This one colides with HTTP 1.1
// "207 Parital Update OK"
/**
* Status code (418) indicating the entity body submitted with the PATCH
* method was not understood by the resource.
*/
public static final int SC_UNPROCESSABLE_ENTITY = 418;
// This one colides with HTTP 1.1
// "418 Reauthentication Required"
/**
* Status code (419) indicating that the resource does not have sufficient
* space to record the state of the resource after the execution of this
* method.
*/
public static final int SC_INSUFFICIENT_SPACE_ON_RESOURCE = 419;
// This one colides with HTTP 1.1
// "419 Proxy Reauthentication Required"
/**
* Status code (420) indicating the method was not executed on a particular
* resource within its scope because some part of the method's execution
* failed causing the entire method to be aborted.
*/
public static final int SC_METHOD_FAILURE = 420;
/**
* Status code (423) indicating the destination resource of a method is
* locked, and either the request did not contain a valid Lock-Info header,
* or the Lock-Info header identifies a lock held by another principal.
*/
public static final int SC_LOCKED = 423;
// ------------------------------------------------------------ Initializer
static {
// HTTP 1.0 Status Code
addStatusCodeMap(SC_OK, "OK");
addStatusCodeMap(SC_CREATED, "Created");
addStatusCodeMap(SC_ACCEPTED, "Accepted");
addStatusCodeMap(SC_NO_CONTENT, "No Content");
addStatusCodeMap(SC_MOVED_PERMANENTLY, "Moved Permanently");
addStatusCodeMap(SC_MOVED_TEMPORARILY, "Moved Temporarily");
addStatusCodeMap(SC_NOT_MODIFIED, "Not Modified");
addStatusCodeMap(SC_BAD_REQUEST, "Bad Request");
addStatusCodeMap(SC_UNAUTHORIZED, "Unauthorized");
addStatusCodeMap(SC_FORBIDDEN, "Forbidden");
addStatusCodeMap(SC_NOT_FOUND, "Not Found");
addStatusCodeMap(SC_INTERNAL_SERVER_ERROR, "Internal Server Error");
addStatusCodeMap(SC_NOT_IMPLEMENTED, "Not Implemented");
addStatusCodeMap(SC_BAD_GATEWAY, "Bad Gateway");
addStatusCodeMap(SC_SERVICE_UNAVAILABLE, "Service Unavailable");
addStatusCodeMap(SC_CONTINUE, "Continue");
addStatusCodeMap(SC_METHOD_NOT_ALLOWED, "Method Not Allowed");
addStatusCodeMap(SC_CONFLICT, "Conflict");
addStatusCodeMap(SC_PRECONDITION_FAILED, "Precondition Failed");
addStatusCodeMap(SC_REQUEST_TOO_LONG, "Request Too Long");
addStatusCodeMap(SC_UNSUPPORTED_MEDIA_TYPE, "Unsupported Media Type");
// WebDav Status Codes
addStatusCodeMap(SC_MULTI_STATUS, "Multi-Status");
addStatusCodeMap(SC_UNPROCESSABLE_ENTITY, "Unprocessable Entity");
addStatusCodeMap(SC_INSUFFICIENT_SPACE_ON_RESOURCE,
"Insufficient Space On Resource");
addStatusCodeMap(SC_METHOD_FAILURE, "Method Failure");
addStatusCodeMap(SC_LOCKED, "Locked");
}
// --------------------------------------------------------- Public Methods
/**
* Returns the HTTP status text for the HTTP or WebDav status code specified
* by looking it up in the static mapping. This is a static function.
*
* @param nHttpStatusCode
* [IN] HTTP or WebDAV status code
* @return A string with a short descriptive phrase for the HTTP status code
* (e.g., "OK").
*/
public static String getStatusText(int nHttpStatusCode) {
Integer intKey = new Integer(nHttpStatusCode);
if (!_mapStatusCodes.containsKey(intKey)) {
return "";
} else {
return (String) _mapStatusCodes.get(intKey);
}
}
// -------------------------------------------------------- Private Methods
/**
* Adds a new status code -> status text mapping. This is a static method
* because the mapping is a static variable.
*
* @param nKey
* [IN] HTTP or WebDAV status code
* @param strVal
* [IN] HTTP status text
*/
private static void addStatusCodeMap(int nKey, String strVal) {
_mapStatusCodes.put(new Integer(nKey), strVal);
}
};
