List of usage examples for org.apache.commons.net.ftp FTPCommand LIST
int LIST
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From source file:ch.cyberduck.core.ftp.FTPPath.java
@Override public AttributedList<Path> list(final AttributedList<Path> children) { try {/*from www . ja v a 2 s.c o m*/ this.getSession().check(); this.getSession().message(MessageFormat .format(Locale.localizedString("Listing directory {0}", "Status"), this.getName())); // Cached file parser determined from SYST response with the timezone set from the bookmark final FTPFileEntryParser parser = this.getSession().getFileParser(); boolean success = false; try { if (this.getSession().isStatListSupportedEnabled()) { int response = this.getSession().getClient().stat(this.getAbsolute()); if (FTPReply.isPositiveCompletion(response)) { String[] reply = this.getSession().getClient().getReplyStrings(); final List<String> result = new ArrayList<String>(reply.length); for (final String line : reply) { //Some servers include the status code for every line. if (line.startsWith(String.valueOf(response))) { try { result.add(line.substring(line.indexOf(response) + line.length() + 1).trim()); } catch (IndexOutOfBoundsException e) { log.error(String.format("Failed parsing line %s", line), e); } } else { result.add(StringUtils.stripStart(line, null)); } } success = this.parseListResponse(children, parser, result); } else { this.getSession().setStatListSupportedEnabled(false); } } } catch (IOException e) { log.warn("Command STAT failed with I/O error:" + e.getMessage()); this.getSession().interrupt(); this.getSession().check(); } if (!success || children.isEmpty()) { success = this.data(new DataConnectionAction() { @Override public boolean run() throws IOException { if (!getSession().getClient().changeWorkingDirectory(getAbsolute())) { throw new FTPException(getSession().getClient().getReplyString()); } if (!getSession().getClient().setFileType(FTPClient.ASCII_FILE_TYPE)) { // Set transfer type for traditional data socket file listings. The data transfer is over the // data connection in type ASCII or type EBCDIC. throw new FTPException(getSession().getClient().getReplyString()); } boolean success = false; // STAT listing failed or empty if (getSession().isMlsdListSupportedEnabled() // Note that there is no distinct FEAT output for MLSD. // The presence of the MLST feature indicates that both MLST and MLSD are supported. && getSession().getClient().isFeatureSupported(FTPCommand.MLST)) { success = parseMlsdResponse(children, getSession().getClient().list(FTPCommand.MLSD)); if (!success) { getSession().setMlsdListSupportedEnabled(false); } } if (!success) { // MLSD listing failed or not enabled if (getSession().isExtendedListEnabled()) { try { success = parseListResponse(children, parser, getSession().getClient().list(FTPCommand.LIST, "-a")); } catch (FTPException e) { getSession().setExtendedListEnabled(false); } } if (!success) { // LIST -a listing failed or not enabled success = parseListResponse(children, parser, getSession().getClient().list(FTPCommand.LIST)); } } return success; } }); } for (Path child : children) { if (child.attributes().isSymbolicLink()) { if (this.getSession().getClient().changeWorkingDirectory(child.getAbsolute())) { child.attributes().setType(SYMBOLIC_LINK_TYPE | DIRECTORY_TYPE); } else { // Try if CWD to symbolic link target succeeds if (this.getSession().getClient() .changeWorkingDirectory(child.getSymlinkTarget().getAbsolute())) { // Workdir change succeeded child.attributes().setType(SYMBOLIC_LINK_TYPE | DIRECTORY_TYPE); } else { child.attributes().setType(SYMBOLIC_LINK_TYPE | FILE_TYPE); } } } } if (!success) { // LIST listing failed log.error("No compatible file listing method found"); } } catch (IOException e) { log.warn("Listing directory failed:" + e.getMessage()); children.attributes().setReadable(false); if (!session.cache().containsKey(this.getReference())) { this.error(e.getMessage(), e); } } return children; }
From source file:org.apache.nutch.protocol.ftp.Client.java
/** * retrieve list reply for path//from ww w .j a v a2 s. c o m * * @param path * @param entries * @param limit * @param parser * @throws IOException * @throws FtpExceptionCanNotHaveDataConnection * @throws FtpExceptionUnknownForcedDataClose * @throws FtpExceptionControlClosedByForcedDataClose */ public void retrieveList(String path, List<FTPFile> entries, int limit, FTPFileEntryParser parser) throws IOException, FtpExceptionCanNotHaveDataConnection, FtpExceptionUnknownForcedDataClose, FtpExceptionControlClosedByForcedDataClose { Socket socket = __openPassiveDataConnection(FTPCommand.LIST, path); if (socket == null) throw new FtpExceptionCanNotHaveDataConnection("LIST " + ((path == null) ? "" : path)); BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream())); // force-close data channel socket, when download limit is reached // boolean mandatory_close = false; // List entries = new LinkedList(); int count = 0; String line = parser.readNextEntry(reader); while (line != null) { FTPFile ftpFile = parser.parseFTPEntry(line); // skip non-formatted lines if (ftpFile == null) { line = parser.readNextEntry(reader); continue; } entries.add(ftpFile); count += line.length(); // impose download limit if limit >= 0, otherwise no limit // here, cut off is up to the line when total bytes is just over limit if (limit >= 0 && count > limit) { // mandatory_close = true; break; } line = parser.readNextEntry(reader); } // if (mandatory_close) // you always close here, no matter mandatory_close or not. // however different ftp servers respond differently, see below. socket.close(); // scenarios: // (1) mandatory_close is false, download limit not reached // no special care here // (2) mandatory_close is true, download limit is reached // different servers have different reply codes: try { int reply = getReply(); if (!_notBadReply(reply)) throw new FtpExceptionUnknownForcedDataClose(getReplyString()); } catch (FTPConnectionClosedException e) { // some ftp servers will close control channel if data channel socket // is closed by our end before all data has been read out. Check: // tux414.q-tam.hp.com FTP server (hp.com version whp02) // so must catch FTPConnectionClosedException thrown by getReply() above // disconnect(); throw new FtpExceptionControlClosedByForcedDataClose(e.getMessage()); } }