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/*
 * Copyright 2001-2004 The Apache Software Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.commons.net.ftp;

/***
 * FTPReply stores a set of constants for FTP reply codes.  To interpret
 * the meaning of the codes, familiarity with RFC 959 is assumed.
 * The mnemonic constant names are transcriptions from the code descriptions
 * of RFC 959.  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 ***/ public final class FTPReply { public static final int CODE_110 = 110; public static final int CODE_120 = 120; public static final int CODE_125 = 125; public static final int CODE_150 = 150; public static final int CODE_200 = 200; public static final int CODE_202 = 202; public static final int CODE_211 = 211; public static final int CODE_212 = 212; public static final int CODE_213 = 213; public static final int CODE_214 = 214; public static final int CODE_215 = 215; public static final int CODE_220 = 220; public static final int CODE_221 = 221; public static final int CODE_225 = 225; public static final int CODE_226 = 226; public static final int CODE_227 = 227; public static final int CODE_230 = 230; public static final int CODE_250 = 250; public static final int CODE_257 = 257; public static final int CODE_331 = 331; public static final int CODE_332 = 332; public static final int CODE_350 = 350; public static final int CODE_421 = 421; public static final int CODE_425 = 425; public static final int CODE_426 = 426; public static final int CODE_450 = 450; public static final int CODE_451 = 451; public static final int CODE_452 = 452; public static final int CODE_500 = 500; public static final int CODE_501 = 501; public static final int CODE_502 = 502; public static final int CODE_503 = 503; public static final int CODE_504 = 504; public static final int CODE_530 = 530; public static final int CODE_532 = 532; public static final int CODE_550 = 550; public static final int CODE_551 = 551; public static final int CODE_552 = 552; public static final int CODE_553 = 553; public static final int RESTART_MARKER = CODE_110; public static final int SERVICE_NOT_READY = CODE_120; public static final int DATA_CONNECTION_ALREADY_OPEN = CODE_125; public static final int FILE_STATUS_OK = CODE_150; public static final int COMMAND_OK = CODE_200; public static final int COMMAND_IS_SUPERFLUOUS = CODE_202; public static final int SYSTEM_STATUS = CODE_211; public static final int DIRECTORY_STATUS = CODE_212; public static final int FILE_STATUS = CODE_213; public static final int HELP_MESSAGE = CODE_214; public static final int NAME_SYSTEM_TYPE = CODE_215; public static final int SERVICE_READY = CODE_220; public static final int SERVICE_CLOSING_CONTROL_CONNECTION = CODE_221; public static final int DATA_CONNECTION_OPEN = CODE_225; public static final int CLOSING_DATA_CONNECTION = CODE_226; public static final int ENTERING_PASSIVE_MODE = CODE_227; public static final int USER_LOGGED_IN = CODE_230; public static final int FILE_ACTION_OK = CODE_250; public static final int PATHNAME_CREATED = CODE_257; public static final int NEED_PASSWORD = CODE_331; public static final int NEED_ACCOUNT = CODE_332; public static final int FILE_ACTION_PENDING = CODE_350; public static final int SERVICE_NOT_AVAILABLE = CODE_421; public static final int CANNOT_OPEN_DATA_CONNECTION = CODE_425; public static final int TRANSFER_ABORTED = CODE_426; public static final int FILE_ACTION_NOT_TAKEN = CODE_450; public static final int ACTION_ABORTED = CODE_451; public static final int INSUFFICIENT_STORAGE = CODE_452; public static final int UNRECOGNIZED_COMMAND = CODE_500; public static final int SYNTAX_ERROR_IN_ARGUMENTS = CODE_501; public static final int COMMAND_NOT_IMPLEMENTED = CODE_502; public static final int BAD_COMMAND_SEQUENCE = CODE_503; public static final int COMMAND_NOT_IMPLEMENTED_FOR_PARAMETER = CODE_504; public static final int NOT_LOGGED_IN = CODE_530; public static final int NEED_ACCOUNT_FOR_STORING_FILES = CODE_532; public static final int FILE_UNAVAILABLE = CODE_550; public static final int PAGE_TYPE_UNKNOWN = CODE_551; public static final int STORAGE_ALLOCATION_EXCEEDED = CODE_552; public static final int FILE_NAME_NOT_ALLOWED = CODE_553; // Cannot be instantiated private FTPReply() {} /*** * Determine if a reply code is a positive preliminary response. All * codes beginning with a 1 are positive preliminary responses. * Postitive preliminary responses are used to indicate tentative success. * No further commands can be issued to the FTP server after a positive * preliminary response until a follow up response is received from the * server. *

* @param reply The reply code to test. * @return True if a reply code is a postive preliminary response, false * if not. ***/ public static boolean isPositivePreliminary(int reply) { return (reply >= 100 && reply < 200); } /*** * Determine if a reply code is a positive completion response. All * codes beginning with a 2 are positive completion responses. * The FTP server will send a positive completion response on the final * successful completion of a command. *

* @param reply The reply code to test. * @return True if a reply code is a postive completion response, false * if not. ***/ public static boolean isPositiveCompletion(int reply) { return (reply >= 200 && reply < 300); } /*** * Determine if a reply code is a positive intermediate response. All * codes beginning with a 3 are positive intermediate responses. * The FTP server will send a positive intermediate response on the * successful completion of one part of a multi-part sequence of * commands. For example, after a successful USER command, a positive * intermediate response will be sent to indicate that the server is * ready for the PASS command. *

* @param reply The reply code to test. * @return True if a reply code is a postive intermediate response, false * if not. ***/ public static boolean isPositiveIntermediate(int reply) { return (reply >= 300 && reply < 400); } /*** * Determine if a reply code is a negative transient response. All * codes beginning with a 4 are negative transient responses. * The FTP server will send a negative transient response on the * failure of a command that can be reattempted with success. *

* @param reply The reply code to test. * @return True if a reply code is a negative transient response, false * if not. ***/ public static boolean isNegativeTransient(int reply) { return (reply >= 400 && reply < 500); } /*** * Determine if a reply code is a negative permanent response. All * codes beginning with a 5 are negative permanent responses. * The FTP server will send a negative permanent response on the * failure of a command that cannot be reattempted with success. *

* @param reply The reply code to test. * @return True if a reply code is a negative permanent response, false * if not. ***/ public static boolean isNegativePermanent(int reply) { return (reply >= 500 && reply < 600); } }

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