org.apache.commons.net.nntp
Class NNTPReply

java.lang.Object
  org.apache.commons.net.nntp.NNTPReply

public final class NNTPReply
extends Object

NNTPReply stores a set of constants for NNTP reply codes. To interpret the meaning of the codes, familiarity with RFC 977 is assumed. The mnemonic constant names are transcriptions from the code descriptions of RFC 977. For those who think in terms of the actual reply code values, a set of CODE_NUM constants are provided where NUM is the numerical value of the code.

Author:

Daniel F. Savarese

Field Summary

static int	ARTICLE_LIST_BY_MESSAGE_ID_FOLLOWS
static int	ARTICLE_NOT_WANTED
static int	ARTICLE_POSTED_OK
static int	ARTICLE_REJECTED
static int	ARTICLE_RETRIEVED_BODY_FOLLOWS
static int	ARTICLE_RETRIEVED_HEAD_AND_BODY_FOLLOW
static int	ARTICLE_RETRIEVED_HEAD_FOLLOWS
static int	ARTICLE_RETRIEVED_REQUEST_TEXT_SEPARATELY
static int	ARTICLE_TRANSFERRED_OK
static int	AUTHENTICATION_ACCEPTED
static int	AUTHENTICATION_REJECTED
static int	AUTHENTICATION_REQUIRED
static int	CLOSING_CONNECTION
static int	CODE_100
static int	CODE_199
static int	CODE_200
static int	CODE_201
static int	CODE_202
static int	CODE_205
static int	CODE_211
static int	CODE_215
static int	CODE_220
static int	CODE_221
static int	CODE_222
static int	CODE_223
static int	CODE_230
static int	CODE_231
static int	CODE_235
static int	CODE_240
static int	CODE_281
static int	CODE_335
static int	CODE_340
static int	CODE_381
static int	CODE_400
static int	CODE_408
static int	CODE_411
static int	CODE_412
static int	CODE_420
static int	CODE_421
static int	CODE_422
static int	CODE_423
static int	CODE_430
static int	CODE_435
static int	CODE_436
static int	CODE_437
static int	CODE_440
static int	CODE_441
static int	CODE_482
static int	CODE_500
static int	CODE_501
static int	CODE_502
static int	CODE_503
static int	COMMAND_NOT_RECOGNIZED
static int	COMMAND_SYNTAX_ERROR
static int	DEBUG_OUTPUT
static int	GROUP_SELECTED
static int	HELP_TEXT_FOLLOWS
static int	MORE_AUTH_INFO_REQUIRED
static int	NEW_NEWSGROUP_LIST_FOLLOWS
static int	NO_CURRENT_ARTICLE_SELECTED
static int	NO_NEWSGROUP_SELECTED
static int	NO_NEXT_ARTICLE
static int	NO_PREVIOUS_ARTICLE
static int	NO_SUCH_ARTICLE_FOUND
static int	NO_SUCH_ARTICLE_NUMBER
static int	NO_SUCH_NEWSGROUP
static int	PERMISSION_DENIED
static int	POSTING_FAILED
static int	POSTING_NOT_ALLOWED
static int	PROGRAM_FAULT
static int	SEND_ARTICLE_TO_POST
static int	SEND_ARTICLE_TO_TRANSFER
static int	SERVER_READY_POSTING_ALLOWED
static int	SERVER_READY_POSTING_NOT_ALLOWED
static int	SERVICE_DISCONTINUED
static int	SLAVE_STATUS_NOTED
static int	TRANSFER_FAILED

Method Summary

static boolean	isInformational(int reply) Determine if a reply code is an informational response.
static boolean	isNegativePermanent(int reply) Determine if a reply code is a negative permanent response.
static boolean	isNegativeTransient(int reply) Determine if a reply code is a negative transient response.
static boolean	isPositiveCompletion(int reply) Determine if a reply code is a positive completion response.
static boolean	isPositiveIntermediate(int reply) Determine if a reply code is a positive intermediate response.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

CODE_100

public static final int CODE_100

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CODE_199

public static final int CODE_199

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CODE_200

public static final int CODE_200

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CODE_201

public static final int CODE_201

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CODE_202

public static final int CODE_202

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CODE_205

public static final int CODE_205

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CODE_211

public static final int CODE_211

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CODE_215

public static final int CODE_215

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CODE_220

public static final int CODE_220

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CODE_221

public static final int CODE_221

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CODE_222

public static final int CODE_222

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CODE_223

public static final int CODE_223

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CODE_230

public static final int CODE_230

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CODE_231

public static final int CODE_231

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CODE_235

public static final int CODE_235

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CODE_240

public static final int CODE_240

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CODE_281

public static final int CODE_281

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CODE_335

public static final int CODE_335

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CODE_340

public static final int CODE_340

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CODE_381

public static final int CODE_381

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CODE_400

public static final int CODE_400

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CODE_408

public static final int CODE_408

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CODE_411

public static final int CODE_411

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CODE_412

public static final int CODE_412

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CODE_420

public static final int CODE_420

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CODE_421

public static final int CODE_421

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CODE_422

public static final int CODE_422

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CODE_423

public static final int CODE_423

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CODE_430

public static final int CODE_430

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CODE_435

public static final int CODE_435

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CODE_436

public static final int CODE_436

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CODE_437

public static final int CODE_437

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CODE_440

public static final int CODE_440

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CODE_441

public static final int CODE_441

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CODE_482

public static final int CODE_482

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CODE_500

public static final int CODE_500

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CODE_501

public static final int CODE_501

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CODE_502

public static final int CODE_502

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CODE_503

public static final int CODE_503

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HELP_TEXT_FOLLOWS

public static final int HELP_TEXT_FOLLOWS

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DEBUG_OUTPUT

public static final int DEBUG_OUTPUT

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SERVER_READY_POSTING_ALLOWED

public static final int SERVER_READY_POSTING_ALLOWED

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SERVER_READY_POSTING_NOT_ALLOWED

public static final int SERVER_READY_POSTING_NOT_ALLOWED

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SLAVE_STATUS_NOTED

public static final int SLAVE_STATUS_NOTED

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CLOSING_CONNECTION

public static final int CLOSING_CONNECTION

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GROUP_SELECTED

public static final int GROUP_SELECTED

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ARTICLE_RETRIEVED_HEAD_AND_BODY_FOLLOW

public static final int ARTICLE_RETRIEVED_HEAD_AND_BODY_FOLLOW

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ARTICLE_RETRIEVED_HEAD_FOLLOWS

public static final int ARTICLE_RETRIEVED_HEAD_FOLLOWS

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ARTICLE_RETRIEVED_BODY_FOLLOWS

public static final int ARTICLE_RETRIEVED_BODY_FOLLOWS

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ARTICLE_RETRIEVED_REQUEST_TEXT_SEPARATELY

public static final int ARTICLE_RETRIEVED_REQUEST_TEXT_SEPARATELY

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ARTICLE_LIST_BY_MESSAGE_ID_FOLLOWS

public static final int ARTICLE_LIST_BY_MESSAGE_ID_FOLLOWS

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NEW_NEWSGROUP_LIST_FOLLOWS

public static final int NEW_NEWSGROUP_LIST_FOLLOWS

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ARTICLE_TRANSFERRED_OK

public static final int ARTICLE_TRANSFERRED_OK

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ARTICLE_POSTED_OK

public static final int ARTICLE_POSTED_OK

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AUTHENTICATION_ACCEPTED

public static final int AUTHENTICATION_ACCEPTED

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SEND_ARTICLE_TO_TRANSFER

public static final int SEND_ARTICLE_TO_TRANSFER

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SEND_ARTICLE_TO_POST

public static final int SEND_ARTICLE_TO_POST

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MORE_AUTH_INFO_REQUIRED

public static final int MORE_AUTH_INFO_REQUIRED

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SERVICE_DISCONTINUED

public static final int SERVICE_DISCONTINUED

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NO_SUCH_NEWSGROUP

public static final int NO_SUCH_NEWSGROUP

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AUTHENTICATION_REQUIRED

public static final int AUTHENTICATION_REQUIRED

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NO_NEWSGROUP_SELECTED

public static final int NO_NEWSGROUP_SELECTED

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NO_CURRENT_ARTICLE_SELECTED

public static final int NO_CURRENT_ARTICLE_SELECTED

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NO_NEXT_ARTICLE

public static final int NO_NEXT_ARTICLE

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NO_PREVIOUS_ARTICLE

public static final int NO_PREVIOUS_ARTICLE

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NO_SUCH_ARTICLE_NUMBER

public static final int NO_SUCH_ARTICLE_NUMBER

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NO_SUCH_ARTICLE_FOUND

public static final int NO_SUCH_ARTICLE_FOUND

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ARTICLE_NOT_WANTED

public static final int ARTICLE_NOT_WANTED

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TRANSFER_FAILED

public static final int TRANSFER_FAILED

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ARTICLE_REJECTED

public static final int ARTICLE_REJECTED

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POSTING_NOT_ALLOWED

public static final int POSTING_NOT_ALLOWED

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POSTING_FAILED

public static final int POSTING_FAILED

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AUTHENTICATION_REJECTED

public static final int AUTHENTICATION_REJECTED

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COMMAND_NOT_RECOGNIZED

public static final int COMMAND_NOT_RECOGNIZED

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COMMAND_SYNTAX_ERROR

public static final int COMMAND_SYNTAX_ERROR

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PERMISSION_DENIED

public static final int PERMISSION_DENIED

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PROGRAM_FAULT

public static final int PROGRAM_FAULT

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Method Detail

isInformational

public static boolean isInformational(int reply)

Determine if a reply code is an informational response. All codes beginning with a 1 are positive informational responses. Informational responses are used to provide human readable information such as help text.

Parameters:

reply - The reply code to test.

Returns:

True if a reply code is an informational response, false if not.

isPositiveCompletion

public static boolean isPositiveCompletion(int reply)

Determine if a reply code is a positive completion response. All codes beginning with a 2 are positive completion responses. The NNTP server will send a positive completion response on the final successful completion of a command.

Parameters:

reply - The reply code to test.

Returns:

True if a reply code is a postive completion response, false if not.

isPositiveIntermediate

public static boolean isPositiveIntermediate(int reply)

Determine if a reply code is a positive intermediate response. All codes beginning with a 3 are positive intermediate responses. The NNTP server will send a positive intermediate response on the successful completion of one part of a multi-part command or sequence of commands. For example, after a successful POST command, a positive intermediate response will be sent to indicate that the server is ready to receive the article to be posted.

Parameters:

reply - The reply code to test.

Returns:

True if a reply code is a postive intermediate response, false if not.

isNegativeTransient

public static boolean isNegativeTransient(int reply)

Determine if a reply code is a negative transient response. All codes beginning with a 4 are negative transient responses. The NNTP server will send a negative transient response on the failure of a correctly formatted command that could not be performed for some reason. For example, retrieving an article that does not exist will result in a negative transient response.

Parameters:

reply - The reply code to test.

Returns:

True if a reply code is a negative transient response, false if not.

isNegativePermanent

public static boolean isNegativePermanent(int reply)

Determine if a reply code is a negative permanent response. All codes beginning with a 5 are negative permanent responses. The NNTP server will send a negative permanent response when it does not implement a command, a command is incorrectly formatted, or a serious program error occurs.

Parameters:

reply - The reply code to test.

Returns:

True if a reply code is a negative permanent response, false if not.