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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 org.apache.commons.vfs2.provider.ftp;

import java.net.Proxy;

import org.apache.commons.net.ftp.parser.FTPFileEntryParserFactory;
import org.apache.commons.vfs2.FileSystem;
import org.apache.commons.vfs2.FileSystemConfigBuilder;
import org.apache.commons.vfs2.FileSystemOptions;

/**
 * The config builder for various ftp configuration options.
 */
public class FtpFileSystemConfigBuilder extends FileSystemConfigBuilder {
    private static final String _PREFIX = FtpFileSystemConfigBuilder.class.getName();

    private static final FtpFileSystemConfigBuilder BUILDER = new FtpFileSystemConfigBuilder();

    private static final String CONNECT_TIMEOUT = _PREFIX + ".CONNECT_TIMEOUT";
    private static final String DATA_TIMEOUT = _PREFIX + ".DATA_TIMEOUT";
    private static final String DEFAULT_DATE_FORMAT = _PREFIX + ".DEFAULT_DATE_FORMAT";
    private static final String ENCODING = _PREFIX + ".ENCODING";
    private static final String FACTORY_KEY = FTPFileEntryParserFactory.class.getName() + ".KEY";
    private static final String FILE_TYPE = _PREFIX + ".FILE_TYPE";
    private static final String PASSIVE_MODE = _PREFIX + ".PASSIVE";
    private static final String PROXY = _PREFIX + ".PROXY";
    private static final String RECENT_DATE_FORMAT = _PREFIX + ".RECENT_DATE_FORMAT";
    private static final String REMOTE_VERIFICATION = _PREFIX + ".REMOTE_VERIFICATION";
    private static final String SERVER_LANGUAGE_CODE = _PREFIX + ".SERVER_LANGUAGE_CODE";
    private static final String SERVER_TIME_ZONE_ID = _PREFIX + ".SERVER_TIME_ZONE_ID";
    private static final String SHORT_MONTH_NAMES = _PREFIX + ".SHORT_MONTH_NAMES";
    private static final String SO_TIMEOUT = _PREFIX + ".SO_TIMEOUT";
    private static final String USER_DIR_IS_ROOT = _PREFIX + ".USER_DIR_IS_ROOT";

    private FtpFileSystemConfigBuilder() {
        super("ftp.");
    }

    /**
     * Create new config builder with specified prefix string.
     *
     * @param prefix prefix string to use for parameters of this config builder.
     * @since 2.1
     */
    protected FtpFileSystemConfigBuilder(final String prefix) {
        super(prefix);
    }

    /**
     * Gets the singleton instance.
     *
     * @return the singleton instance.
     */
    public static FtpFileSystemConfigBuilder getInstance() {
        return BUILDER;
    }

    @Override
    protected Class getConfigClass() {
        return FtpFileSystem.class;
    }

    /**
     * Gets the timeout in milliseconds to use for the socket connection.
     *
     * @param opts The FileSystemOptions.
     * @return The timeout in milliseconds to use for the socket connection.
     * @since 2.1
     */
    public Integer getConnectTimeout(final FileSystemOptions opts) {
        return getInteger(opts, CONNECT_TIMEOUT);
    }

    /**
     * @param opts The FileSystemOptions.
     * @return The encoding.
     * @since 2.0
     */
    public String getControlEncoding(final FileSystemOptions opts) {
        return getString(opts, ENCODING);
    }

    /**
     * @param opts The FileSystemOptions.
     * @return The timeout for opening the data channel in milliseconds.
     * @see #setDataTimeout
     */
    public Integer getDataTimeout(final FileSystemOptions opts) {
        return getInteger(opts, DATA_TIMEOUT);
    }

    /**
     * Get the default date format used by the server. See {@link org.apache.commons.net.ftp.FTPClientConfig} for
     * details and examples.
     *
     * @param opts The FileSystemOptions
     * @return The default date format.
     */
    public String getDefaultDateFormat(final FileSystemOptions opts) {
        return getString(opts, DEFAULT_DATE_FORMAT);
    }

    /**
     * @param opts The FileSystemOptions.
     * @see #setEntryParser
     * @return the key to the EntryParser.
     */
    public String getEntryParser(final FileSystemOptions opts) {
        return getString(opts, FACTORY_KEY);
    }

    /**
     * @param opts The FlleSystemOptions.
     * @see #setEntryParserFactory
     * @return An FTPFileEntryParserFactory.
     */
    public FTPFileEntryParserFactory getEntryParserFactory(final FileSystemOptions opts) {
        return (FTPFileEntryParserFactory) getParam(opts, FTPFileEntryParserFactory.class.getName());
    }

    /**
     * Gets the file type parameter.
     *
     * @param opts The FileSystemOptions.
     * @return A FtpFileType
     * @since 2.1
     */
    public FtpFileType getFileType(final FileSystemOptions opts) {
        return getEnum(FtpFileType.class, opts, FILE_TYPE);
    }

    /**
     * @param opts The FileSystemOptions.
     * @return true if passive mode is set.
     * @see #setPassiveMode
     */
    public Boolean getPassiveMode(final FileSystemOptions opts) {
        return getBoolean(opts, PASSIVE_MODE);
    }

    /**
     * Gets the Proxy.
     *
     * @param opts The FileSystemOptions.
     * @return the Proxy
     * @since 2.1
     */
    public Proxy getProxy(final FileSystemOptions opts) {
        return (Proxy) this.getParam(opts, PROXY);
    }

    /**
     * See {@link org.apache.commons.net.ftp.FTPClientConfig} for details and examples.
     *
     * @param opts The FileSystemOptions.
     * @return The recent date format.
     */
    public String getRecentDateFormat(final FileSystemOptions opts) {
        return getString(opts, RECENT_DATE_FORMAT);
    }

    /**
     * Gets whether to use remote verification.
     *
     * @param opts The FileSystemOptions.
     * @return True if remote verification should be done.
     */
    public Boolean getRemoteVerification(final FileSystemOptions opts) {
        return getBoolean(opts, REMOTE_VERIFICATION);
    }

    /**
     * Get the language code used by the server. See {@link org.apache.commons.net.ftp.FTPClientConfig} for details and
     * examples.
     *
     * @param opts The FilesystemOptions.
     * @return The language code of the server.
     */
    public String getServerLanguageCode(final FileSystemOptions opts) {
        return getString(opts, SERVER_LANGUAGE_CODE);
    }

    /**
     * See {@link org.apache.commons.net.ftp.FTPClientConfig} for details and examples.
     *
     * @param opts The FileSystemOptions.
     * @return The server timezone id.
     */
    public String getServerTimeZoneId(final FileSystemOptions opts) {
        return getString(opts, SERVER_TIME_ZONE_ID);
    }

    /**
     * See {@link org.apache.commons.net.ftp.FTPClientConfig} for details and examples.
     *
     * @param opts The FileSystemOptions.
     * @return An array of short month names.
     */
    public String[] getShortMonthNames(final FileSystemOptions opts) {
        return (String[]) getParam(opts, SHORT_MONTH_NAMES);
    }

    /**
     * @param opts The FileSystem options.
     * @return The timeout value in milliseconds.
     * @see #getDataTimeout
     * @since 2.0
     */
    public Integer getSoTimeout(final FileSystemOptions opts) {
        return getInteger(opts, SO_TIMEOUT);
    }

    /**
     * Returns {@link Boolean#TRUE} if VFS should treat the user directory as the root directory. Defaults to
     * Boolean.TRUE if the method {@link #setUserDirIsRoot(FileSystemOptions, boolean)} has not been
     * invoked.
     *
     * @param opts The FileSystemOptions.
     * @return Boolean.TRUE if VFS treats the user directory as the root directory.
     * @see #setUserDirIsRoot
     */
    public Boolean getUserDirIsRoot(final FileSystemOptions opts) {
        return getBoolean(opts, USER_DIR_IS_ROOT, Boolean.TRUE);
    }

    /**
     * Sets the timeout for the initial control connection.
     * 

* If you set the connectTimeout to {@code null} no connectTimeout will be set. * * @param opts The FileSystemOptions. * @param connectTimeout the timeout value in milliseconds * @since 2.1 */ public void setConnectTimeout(final FileSystemOptions opts, final Integer connectTimeout) { setParam(opts, CONNECT_TIMEOUT, connectTimeout); } /** * See {@link org.apache.commons.net.ftp.FTP#setControlEncoding} for details and examples. * * @param opts The FileSystemOptions. * @param encoding the encoding to use * @since 2.0 */ public void setControlEncoding(final FileSystemOptions opts, final String encoding) { setParam(opts, ENCODING, encoding); } /** * Set the data timeout for the ftp client. *

* If you set the {@code dataTimeout} to {@code null}, no dataTimeout will be set on the ftp client. * * @param opts The FileSystemOptions. * @param dataTimeout The timeout value. */ public void setDataTimeout(final FileSystemOptions opts, final Integer dataTimeout) { setParam(opts, DATA_TIMEOUT, dataTimeout); } /** * Set the default date format used by the server. See {@link org.apache.commons.net.ftp.FTPClientConfig} for * details and examples. * * @param opts The FileSystemOptions. * @param defaultDateFormat The default date format. */ public void setDefaultDateFormat(final FileSystemOptions opts, final String defaultDateFormat) { setParam(opts, DEFAULT_DATE_FORMAT, defaultDateFormat); } /** * Set the FQCN of your FileEntryParser used to parse the directory listing from your server. *

* If you do not use the default commons-net FTPFileEntryParserFactory e.g. by using {@link #setEntryParserFactory} * this is the "key" parameter passed as argument into your custom factory. * * @param opts The FileSystemOptions. * @param key The key. */ public void setEntryParser(final FileSystemOptions opts, final String key) { setParam(opts, FACTORY_KEY, key); } /** * FTPFileEntryParserFactory which will be used for ftp-entry parsing. * * @param opts The FileSystemOptions. * @param factory instance of your factory */ public void setEntryParserFactory(final FileSystemOptions opts, final FTPFileEntryParserFactory factory) { setParam(opts, FTPFileEntryParserFactory.class.getName(), factory); } /** * Sets the file type parameter. * * @param opts The FileSystemOptions. * @param ftpFileType A FtpFileType * @since 2.1 */ public void setFileType(final FileSystemOptions opts, final FtpFileType ftpFileType) { setParam(opts, FILE_TYPE, ftpFileType); } /** * Enter into passive mode. * * @param opts The FileSystemOptions. * @param passiveMode true if passive mode should be used. */ public void setPassiveMode(final FileSystemOptions opts, final boolean passiveMode) { setParam(opts, PASSIVE_MODE, passiveMode ? Boolean.TRUE : Boolean.FALSE); } /** * Sets the Proxy. *

* You might need to make sure that {@link #setPassiveMode(FileSystemOptions, boolean) passive mode} is activated. * * @param opts the FileSystem options. * @param proxy the Proxy * @since 2.1 */ public void setProxy(final FileSystemOptions opts, final Proxy proxy) { setParam(opts, PROXY, proxy); } /** * See {@link org.apache.commons.net.ftp.FTPClientConfig} for details and examples. * * @param opts The FileSystemOptions. * @param recentDateFormat The recent date format. */ public void setRecentDateFormat(final FileSystemOptions opts, final String recentDateFormat) { setParam(opts, RECENT_DATE_FORMAT, recentDateFormat); } /** * Sets whether to use remote verification. * * @param opts The FileSystemOptions. * @param remoteVerification True if verification should be done. */ public void setRemoteVerification(final FileSystemOptions opts, final boolean remoteVerification) { setParam(opts, REMOTE_VERIFICATION, remoteVerification); } /** * Set the language code used by the server. See {@link org.apache.commons.net.ftp.FTPClientConfig} for details and * examples. * * @param opts The FileSystemOptions. * @param serverLanguageCode The servers language code. */ public void setServerLanguageCode(final FileSystemOptions opts, final String serverLanguageCode) { setParam(opts, SERVER_LANGUAGE_CODE, serverLanguageCode); } /** * See {@link org.apache.commons.net.ftp.FTPClientConfig} for details and examples. * * @param opts The FileSystemOptions. * @param serverTimeZoneId The server timezone id. */ public void setServerTimeZoneId(final FileSystemOptions opts, final String serverTimeZoneId) { setParam(opts, SERVER_TIME_ZONE_ID, serverTimeZoneId); } /** * See {@link org.apache.commons.net.ftp.FTPClientConfig} for details and examples. * * @param opts The FileSystemOptions. * @param shortMonthNames an array of short month name Strings. */ public void setShortMonthNames(final FileSystemOptions opts, final String[] shortMonthNames) { String[] clone = null; if (shortMonthNames != null) { clone = new String[shortMonthNames.length]; System.arraycopy(shortMonthNames, 0, clone, 0, shortMonthNames.length); } setParam(opts, SHORT_MONTH_NAMES, clone); } /** * Sets the socket timeout for the FTP client. *

* If you set the {@code soTimeout} to {@code null}, no socket timeout will be set on the ftp client. * * @param opts The FileSystem options. * @param soTimeout The timeout value in milliseconds. * @since 2.0 */ public void setSoTimeout(final FileSystemOptions opts, final Integer soTimeout) { setParam(opts, SO_TIMEOUT, soTimeout); } /** * Use user directory as root (do not change to fs root). * * @param opts The FileSystemOptions. * @param userDirIsRoot true if the user directory should be treated as the root. */ public void setUserDirIsRoot(final FileSystemOptions opts, final boolean userDirIsRoot) { setParam(opts, USER_DIR_IS_ROOT, userDirIsRoot ? Boolean.TRUE : Boolean.FALSE); } }





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