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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 com.feilong.lib.net.ftp.parser;

import java.io.File;
import java.text.ParseException;

import com.feilong.lib.net.ftp.FTPClientConfig;
import com.feilong.lib.net.ftp.FTPFile;

/**
 * @version $Id$
 * 
 *          
 * Example *FILE/*MEM FTP entries, when the current
 * working directory is a file of file system QSYS:
 * ------------------------------------------------
 *
 * $ cwd /qsys.lib/rpgunit.lib/rpgunitc1.file
 *   250-NAMEFMT set to 1.
 *   250 "/QSYS.LIB/RPGUNIT.LIB/RPGUNITC1.FILE" is current directory.
 * $ dir
 *   227 Entering Passive Mode (10,200,36,33,40,249).
 *   125 List started.
 *   QPGMR          135168 22.06.13 13:18:19 *FILE
 *   QPGMR                                   *MEM       MKCMD.MBR
 *   QPGMR                                   *MEM       RUCALLTST.MBR
 *   QPGMR                                   *MEM       RUCMDHLP.MBR
 *   QPGMR                                   *MEM       RUCRTTST.MBR
 *   250 List completed.
 *
 *
 * Example *FILE entry of an OS/400 save file:
 * ---------------------------------------------------
 *
 * $ cwd /qsys.lib/rpgunit.lib
 *   250 "/QSYS.LIB/RPGUNIT.LIB" is current library.
 * $ dir rpgunit.file
 *   227 Entering Passive Mode (10,200,36,33,188,106).
 *   125 List started.
 *   QPGMR        16347136 29.06.13 15:45:09 *FILE      RPGUNIT.SAVF
 *   250 List completed.
 *
 *
 * Example *STMF/*DIR FTP entries, when the
 * current working directory is in file system "root":
 * ---------------------------------------------------
 *
 * $ cwd /home/raddatz
 *   250 "/home/raddatz" is current directory.
 * $ dir test*
 *   227 Entering Passive Mode (10,200,36,33,200,189).
 *   125 List started.
 *   RADDATZ           200 21.05.11 12:31:18 *STMF      TEST_RG_02_CRLF.properties
 *   RADDATZ           187 08.05.11 12:31:40 *STMF      TEST_RG_02_LF.properties
 *   RADDATZ           187 08.05.11 12:31:52 *STMF      TEST_RG_02_CR.properties
 *   RADDATZ          8192 04.07.13 09:04:14 *DIR       testDir1/
 *   RADDATZ          8192 04.07.13 09:04:17 *DIR       testDir2/
 *   250 List completed.
 *
 *
 * Example 1, using ANT to list specific members of a file:
 * --------------------------------------------------------
 *
 *      <echo/>
 *      <echo>Listing members of a file:</echo>
 *
 *      <ftp action="list"
 *           server="${ftp.server}"
 *           userid="${ftp.user}"
 *           password="${ftp.password}"
 *           binary="false"
 *           verbose="true"
 *           remotedir="/QSYS.LIB/RPGUNIT.LIB/RPGUNITY1.FILE"
 *           systemTypeKey="OS/400"
 *           listing="ftp-listing.txt"
 *           >
 *          <fileset dir="./i5-downloads-file" casesensitive="false">
 *              <include name="run*.mbr" />
 *          </fileset>
 *      </ftp>
 *
 * Output:
 * -------
 *
 *   [echo] Listing members of a file:
 *    [ftp] listing files
 *    [ftp] listing RUN.MBR
 *    [ftp] listing RUNNER.MBR
 *    [ftp] listing RUNNERBND.MBR
 *    [ftp] 3 files listed
 *
 *
 * Example 2, using ANT to list specific members of all files of a library:
 * ------------------------------------------------------------------------
 *
 *      <echo/>
 *      <echo>Listing members of all files of a library:</echo>
 *
 *      <ftp action="list"
 *           server="${ftp.server}"
 *           userid="${ftp.user}"
 *           password="${ftp.password}"
 *           binary="false"
 *           verbose="true"
 *           remotedir="/QSYS.LIB/RPGUNIT.LIB"
 *           systemTypeKey="OS/400"
 *           listing="ftp-listing.txt"
 *           >
 *          <fileset dir="./i5-downloads-lib" casesensitive="false">
 *              <include name="**\run*.mbr" />
 *          </fileset>
 *      </ftp>
 *
 * Output:
 * -------
 *
 *   [echo] Listing members of all files of a library:
 *    [ftp] listing files
 *    [ftp] listing RPGUNIT1.FILE\RUN.MBR
 *    [ftp] listing RPGUNIT1.FILE\RUNRMT.MBR
 *    [ftp] listing RPGUNITT1.FILE\RUNT.MBR
 *    [ftp] listing RPGUNITY1.FILE\RUN.MBR
 *    [ftp] listing RPGUNITY1.FILE\RUNNER.MBR
 *    [ftp] listing RPGUNITY1.FILE\RUNNERBND.MBR
 *    [ftp] 6 files listed
 *
 *
 * Example 3, using ANT to download specific members of a file:
 * ------------------------------------------------------------
 *
 *      <echo/>
 *      <echo>Downloading members of a file:</echo>
 *
 *      <ftp action="get"
 *           server="${ftp.server}"
 *           userid="${ftp.user}"
 *           password="${ftp.password}"
 *           binary="false"
 *           verbose="true"
 *           remotedir="/QSYS.LIB/RPGUNIT.LIB/RPGUNITY1.FILE"
 *           systemTypeKey="OS/400"
 *           >
 *          <fileset dir="./i5-downloads-file" casesensitive="false">
 *              <include name="run*.mbr" />
 *          </fileset>
 *      </ftp>
 *
 * Output:
 * -------
 *
 *   [echo] Downloading members of a file:
 *    [ftp] getting files
 *    [ftp] transferring RUN.MBR to C:\workspaces\rdp_080\workspace\ANT - FTP\i5-downloads-file\RUN.MBR
 *    [ftp] transferring RUNNER.MBR to C:\workspaces\rdp_080\workspace\ANT - FTP\i5-downloads-file\RUNNER.MBR
 *    [ftp] transferring RUNNERBND.MBR to C:\workspaces\rdp_080\workspace\ANT - FTP\i5-downloads-file\RUNNERBND.MBR
 *    [ftp] 3 files retrieved
 *
 *
 * Example 4, using ANT to download specific members of all files of a library:
 * ----------------------------------------------------------------------------
 *
 *      <echo/>
 *      <echo>Downloading members of all files of a library:</echo>
 *
 *      <ftp action="get"
 *           server="${ftp.server}"
 *           userid="${ftp.user}"
 *           password="${ftp.password}"
 *           binary="false"
 *           verbose="true"
 *           remotedir="/QSYS.LIB/RPGUNIT.LIB"
 *           systemTypeKey="OS/400"
 *           >
 *          <fileset dir="./i5-downloads-lib" casesensitive="false">
 *              <include name="**\run*.mbr" />
 *          </fileset>
 *      </ftp>
 *
 * Output:
 * -------
 *
 *   [echo] Downloading members of all files of a library:
 *    [ftp] getting files
 *    [ftp] transferring RPGUNIT1.FILE\RUN.MBR to C:\work\rdp_080\space\ANT - FTP\i5-downloads\RPGUNIT1.FILE\RUN.MBR
 *    [ftp] transferring RPGUNIT1.FILE\RUNRMT.MBR to C:\work\rdp_080\space\ANT - FTP\i5-downloads\RPGUNIT1.FILE\RUNRMT.MBR
 *    [ftp] transferring RPGUNITT1.FILE\RUNT.MBR to C:\work\rdp_080\space\ANT - FTP\i5-downloads\RPGUNITT1.FILE\RUNT.MBR
 *    [ftp] transferring RPGUNITY1.FILE\RUN.MBR to C:\work\rdp_080\space\ANT - FTP\i5-downloads\RPGUNITY1.FILE\RUN.MBR
 *    [ftp] transferring RPGUNITY1.FILE\RUNNER.MBR to C:\work\rdp_080\space\ANT - FTP\i5-downloads\RPGUNITY1.FILE\RUNNER.MBR
 *    [ftp] transferring RPGUNITY1.FILE\RUNNERBND.MBR to C:\work\rdp_080\space\ANT - FTP\i5-downloads\RPGUNITY1.FILE\RUNNERBND.MBR
 *    [ftp] 6 files retrieved
 *
 *
 * Example 5, using ANT to download a save file of a library:
 * ----------------------------------------------------------
 *
 *      <ftp action="get"
 *           server="${ftp.server}"
 *           userid="${ftp.user}"
 *           password="${ftp.password}"
 *           binary="true"
 *           verbose="true"
 *           remotedir="/QSYS.LIB/RPGUNIT.LIB"
 *           systemTypeKey="OS/400"
 *           >
 *        <fileset dir="./i5-downloads-savf" casesensitive="false">
 *            <include name="RPGUNIT.SAVF" />
 *        </fileset>
 *      </ftp>
 *
 * Output:
 * -------
 *   [echo] Downloading save file:
 *    [ftp] getting files
 *    [ftp] transferring RPGUNIT.SAVF to C:\workspaces\rdp_080\workspace\net-Test\i5-downloads-lib\RPGUNIT.SAVF
 *    [ftp] 1 files retrieved
 *
 *          
*/ public class OS400FTPEntryParser extends ConfigurableFTPFileEntryParserImpl{ private static final String DEFAULT_DATE_FORMAT = "yy/MM/dd HH:mm:ss"; //01/11/09 12:30:24 private static final String REGEX = "(\\S+)\\s+" // user + "(?:(\\d+)\\s+)?" // size, empty for members + "(?:(\\S+)\\s+(\\S+)\\s+)?" // date stuff, empty for members + "(\\*STMF|\\*DIR|\\*FILE|\\*MEM)\\s+" // *STMF/*DIR/*FILE/*MEM + "(?:(\\S+)\\s*)?"; // filename, missing, when CWD is a *FILE /** * The default constructor for a OS400FTPEntryParser object. * * @throws IllegalArgumentException * Thrown if the regular expression is unparseable. Should not be seen * under normal conditions. It it is seen, this is a sign that * REGEX is not a valid regular expression. */ public OS400FTPEntryParser(){ this(null); } /** * This constructor allows the creation of an OS400FTPEntryParser object * with something other than the default configuration. * * @param config * The {@link FTPClientConfig configuration} object used to * configure this parser. * @throws IllegalArgumentException * Thrown if the regular expression is unparseable. Should not be seen * under normal conditions. It it is seen, this is a sign that * REGEX is not a valid regular expression. * @since 1.4 */ public OS400FTPEntryParser(FTPClientConfig config){ super(REGEX); configure(config); } @Override public FTPFile parseFTPEntry(String entry){ FTPFile file = new FTPFile(); file.setRawListing(entry); int type; if (matches(entry)){ String usr = group(1); String filesize = group(2); String datestr = ""; if (!isNullOrEmpty(group(3)) || !isNullOrEmpty(group(4))){ datestr = group(3) + " " + group(4); } String typeStr = group(5); String name = group(6); boolean mustScanForPathSeparator = true; try{ file.setTimestamp(super.parseTimestamp(datestr)); }catch (ParseException e){ // intentionally do nothing } if (typeStr.equalsIgnoreCase("*STMF")){ type = FTPFile.FILE_TYPE; if (isNullOrEmpty(filesize) || isNullOrEmpty(name)){ return null; } }else if (typeStr.equalsIgnoreCase("*DIR")){ type = FTPFile.DIRECTORY_TYPE; if (isNullOrEmpty(filesize) || isNullOrEmpty(name)){ return null; } }else if (typeStr.equalsIgnoreCase("*FILE")){ // File, defines the structure of the data (columns of a row) // but the data is stored in one or more members. Typically a // source file contains multiple members whereas it is // recommended (but not enforced) to use one member per data // file. // Save files are a special type of files which are used // to save objects, e.g. for backups. if (name != null && name.toUpperCase().endsWith(".SAVF")){ mustScanForPathSeparator = false; type = FTPFile.FILE_TYPE; }else{ return null; } }else if (typeStr.equalsIgnoreCase("*MEM")){ mustScanForPathSeparator = false; type = FTPFile.FILE_TYPE; if (isNullOrEmpty(name)){ return null; } if (!(isNullOrEmpty(filesize) && isNullOrEmpty(datestr))){ return null; } // Quick and dirty bug fix to make SelectorUtils work. // Class SelectorUtils uses 'File.separator' to splitt // a given path into pieces. But actually it had to // use the separator of the FTP server, which is a forward // slash in case of an AS/400. name = name.replace('/', File.separatorChar); }else{ type = FTPFile.UNKNOWN_TYPE; } file.setType(type); file.setUser(usr); try{ file.setSize(Long.parseLong(filesize)); }catch (NumberFormatException e){ // intentionally do nothing } if (name.endsWith("/")){ name = name.substring(0, name.length() - 1); } if (mustScanForPathSeparator){ int pos = name.lastIndexOf('/'); if (pos > -1){ name = name.substring(pos + 1); } } file.setName(name); return file; } return null; } /** * * @param string * String value that is checked for null * or empty. * @return true for null or empty values, * else false. */ private static boolean isNullOrEmpty(String string){ return string == null || string.length() == 0; } /** * Defines a default configuration to be used when this class is * instantiated without a {@link FTPClientConfig FTPClientConfig} * parameter being specified. * * @return the default configuration for this parser. */ @Override protected FTPClientConfig getDefaultConfiguration(){ return new FTPClientConfig(FTPClientConfig.SYST_OS400, DEFAULT_DATE_FORMAT, null); } }




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