GUACAMOLE-1048: Allow direct conversion from GuacamoleStatus to GuacamoleException.

This commit is contained in:
Michael Jumper
2021-05-23 20:02:30 -07:00
parent fdff3e187b
commit e2f2b715a4
2 changed files with 291 additions and 21 deletions

View File

@@ -19,6 +19,28 @@
package org.apache.guacamole.protocol;
import org.apache.guacamole.GuacamoleClientBadTypeException;
import org.apache.guacamole.GuacamoleClientException;
import org.apache.guacamole.GuacamoleClientOverrunException;
import org.apache.guacamole.GuacamoleClientTimeoutException;
import org.apache.guacamole.GuacamoleClientTooManyException;
import org.apache.guacamole.GuacamoleException;
import org.apache.guacamole.GuacamoleResourceClosedException;
import org.apache.guacamole.GuacamoleResourceConflictException;
import org.apache.guacamole.GuacamoleResourceNotFoundException;
import org.apache.guacamole.GuacamoleSecurityException;
import org.apache.guacamole.GuacamoleServerBusyException;
import org.apache.guacamole.GuacamoleServerException;
import org.apache.guacamole.GuacamoleSessionClosedException;
import org.apache.guacamole.GuacamoleSessionConflictException;
import org.apache.guacamole.GuacamoleSessionTimeoutException;
import org.apache.guacamole.GuacamoleUnauthorizedException;
import org.apache.guacamole.GuacamoleUnsupportedException;
import org.apache.guacamole.GuacamoleUpstreamException;
import org.apache.guacamole.GuacamoleUpstreamNotFoundException;
import org.apache.guacamole.GuacamoleUpstreamTimeoutException;
import org.apache.guacamole.GuacamoleUpstreamUnavailableException;
/**
* All possible statuses returned by various Guacamole instructions, each having
* a corresponding code.
@@ -28,86 +50,193 @@ public enum GuacamoleStatus {
/**
* The operation succeeded.
*/
SUCCESS(200, 1000, 0x0000),
SUCCESS(200, 1000, 0x0000) {
@Override
public GuacamoleException toException(String message) {
throw new IllegalStateException("The Guacamole protocol SUCCESS "
+ "status code cannot be converted into a "
+ "GuacamoleException.", new GuacamoleServerException(message));
}
},
/**
* The requested operation is unsupported.
*/
UNSUPPORTED(501, 1011, 0x0100),
UNSUPPORTED(501, 1011, 0x0100) {
@Override
public GuacamoleException toException(String message) {
return new GuacamoleUnsupportedException(message);
}
},
/**
* The operation could not be performed due to an internal failure.
*/
SERVER_ERROR(500, 1011, 0x0200),
SERVER_ERROR(500, 1011, 0x0200) {
@Override
public GuacamoleException toException(String message) {
return new GuacamoleServerException(message);
}
},
/**
* The operation could not be performed as the server is busy.
*/
SERVER_BUSY(503, 1008, 0x0201),
SERVER_BUSY(503, 1008, 0x0201) {
@Override
public GuacamoleException toException(String message) {
return new GuacamoleServerBusyException(message);
}
},
/**
* The operation could not be performed because the upstream server is not
* responding.
*/
UPSTREAM_TIMEOUT(504, 1011, 0x0202),
UPSTREAM_TIMEOUT(504, 1011, 0x0202) {
@Override
public GuacamoleException toException(String message) {
return new GuacamoleUpstreamTimeoutException(message);
}
},
/**
* The operation was unsuccessful due to an error or otherwise unexpected
* condition of the upstream server.
*/
UPSTREAM_ERROR(502, 1011, 0x0203),
UPSTREAM_ERROR(502, 1011, 0x0203) {
@Override
public GuacamoleException toException(String message) {
return new GuacamoleUpstreamException(message);
}
},
/**
* The operation could not be performed as the requested resource does not
* exist.
*/
RESOURCE_NOT_FOUND(404, 1002, 0x0204),
RESOURCE_NOT_FOUND(404, 1002, 0x0204) {
@Override
public GuacamoleException toException(String message) {
return new GuacamoleResourceNotFoundException(message);
}
},
/**
* The operation could not be performed as the requested resource is already
* in use.
*/
RESOURCE_CONFLICT(409, 1008, 0x0205),
RESOURCE_CONFLICT(409, 1008, 0x0205) {
@Override
public GuacamoleException toException(String message) {
return new GuacamoleResourceConflictException(message);
}
},
/**
* The operation could not be performed as the requested resource is now
* closed.
*/
RESOURCE_CLOSED(404, 1002, 0x0206),
RESOURCE_CLOSED(404, 1002, 0x0206) {
@Override
public GuacamoleException toException(String message) {
return new GuacamoleResourceClosedException(message);
}
},
/**
* The operation could not be performed because the upstream server does
* not appear to exist.
*/
UPSTREAM_NOT_FOUND(502, 1011, 0x0207),
UPSTREAM_NOT_FOUND(502, 1011, 0x0207) {
@Override
public GuacamoleException toException(String message) {
return new GuacamoleUpstreamNotFoundException(message);
}
},
/**
* The operation could not be performed because the upstream server is not
* available to service the request.
*/
UPSTREAM_UNAVAILABLE(502, 1011, 0x0208),
UPSTREAM_UNAVAILABLE(502, 1011, 0x0208) {
@Override
public GuacamoleException toException(String message) {
return new GuacamoleUpstreamUnavailableException(message);
}
},
/**
* The session within the upstream server has ended because it conflicted
* with another session.
*/
SESSION_CONFLICT(409, 1008, 0x0209),
SESSION_CONFLICT(409, 1008, 0x0209) {
@Override
public GuacamoleException toException(String message) {
return new GuacamoleSessionConflictException(message);
}
},
/**
* The session within the upstream server has ended because it appeared to
* be inactive.
*/
SESSION_TIMEOUT(408, 1002, 0x020A),
SESSION_TIMEOUT(408, 1002, 0x020A) {
@Override
public GuacamoleException toException(String message) {
return new GuacamoleSessionTimeoutException(message);
}
},
/**
* The session within the upstream server has been forcibly terminated.
*/
SESSION_CLOSED(404, 1002, 0x020B),
SESSION_CLOSED(404, 1002, 0x020B) {
@Override
public GuacamoleException toException(String message) {
return new GuacamoleSessionClosedException(message);
}
},
/**
* The operation could not be performed because bad parameters were given.
*/
CLIENT_BAD_REQUEST(400, 1002, 0x0300),
CLIENT_BAD_REQUEST(400, 1002, 0x0300) {
@Override
public GuacamoleException toException(String message) {
return new GuacamoleClientException(message);
}
},
/**
* Permission was denied to perform the operation, as the user is not yet
@@ -115,34 +244,76 @@ public enum GuacamoleStatus {
* for HTTP-specific authorization schemes, this status continues to map to
* HTTP 403 ("Forbidden"). To do otherwise would risk unintended effects.
*/
CLIENT_UNAUTHORIZED(403, 1008, 0x0301),
CLIENT_UNAUTHORIZED(403, 1008, 0x0301) {
@Override
public GuacamoleException toException(String message) {
return new GuacamoleUnauthorizedException(message);
}
},
/**
* Permission was denied to perform the operation, and this operation will
* not be granted even if the user is authorized.
*/
CLIENT_FORBIDDEN(403, 1008, 0x0303),
CLIENT_FORBIDDEN(403, 1008, 0x0303) {
@Override
public GuacamoleException toException(String message) {
return new GuacamoleSecurityException(message);
}
},
/**
* The client took too long to respond.
*/
CLIENT_TIMEOUT(408, 1002, 0x0308),
CLIENT_TIMEOUT(408, 1002, 0x0308) {
@Override
public GuacamoleException toException(String message) {
return new GuacamoleClientTimeoutException(message);
}
},
/**
* The client sent too much data.
*/
CLIENT_OVERRUN(413, 1009, 0x030D),
CLIENT_OVERRUN(413, 1009, 0x030D) {
@Override
public GuacamoleException toException(String message) {
return new GuacamoleClientOverrunException(message);
}
},
/**
* The client sent data of an unsupported or unexpected type.
*/
CLIENT_BAD_TYPE(415, 1003, 0x030F),
CLIENT_BAD_TYPE(415, 1003, 0x030F) {
@Override
public GuacamoleException toException(String message) {
return new GuacamoleClientBadTypeException(message);
}
},
/**
* The operation failed because the current client is already using too
* many resources.
*/
CLIENT_TOO_MANY(429, 1008, 0x031D);
CLIENT_TOO_MANY(429, 1008, 0x031D) {
@Override
public GuacamoleException toException(String message) {
return new GuacamoleClientTooManyException(message);
}
};
/**
* The most applicable HTTP error code.
@@ -226,4 +397,25 @@ public enum GuacamoleStatus {
}
/**
* Returns an instance of the {@link GuacamoleException} subclass
* corresponding to this Guacamole protocol status code. All status codes
* have a corresponding GuacamoleException except for {@link SUCCESS}. The
* returned GuacamoleException will have the provided human-readable
* message.
*
* @param message
* A human readable description of the error that occurred.
*
* @return
* An instance of the {@link GuacamoleException} subclass that
* corresponds to this status code and has the provided human-readable
* message.
*
* @throws IllegalStateException
* If invoked on {@link SUCCESS}, which has no corresponding
* GuacamoleException.
*/
public abstract GuacamoleException toException(String message);
}