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java/sql-dk/src/info/globalcode/sql/dk/CLIParser.java
author František Kučera <franta-hg@frantovo.cz>
Fri, 27 Dec 2013 19:33:46 +0100
branchv_0
changeset 86 6b0eb3b22eb8
parent 79 e19a13ed19a9
child 93 5a4dbe6f962c
permissions -rw-r--r--
log SQLWarnings 
     1 /**

     2  * SQL-DK

     3  * Copyright © 2013 František Kučera (frantovo.cz)

     4  *

     5  * This program is free software: you can redistribute it and/or modify

     6  * it under the terms of the GNU General Public License as published by

     7  * the Free Software Foundation, either version 3 of the License, or

     8  * (at your option) any later version.

     9  *

    10  * This program is distributed in the hope that it will be useful,

    11  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

    13  * GNU General Public License for more details.

    14  *

    15  * You should have received a copy of the GNU General Public License

    16  * along with this program. If not, see <http://www.gnu.org/licenses/>.

    17  */

    18 package info.globalcode.sql.dk;

    19 

    20 import info.globalcode.sql.dk.InfoLister.InfoType;

    21 import java.util.ArrayList;

    22 import java.util.HashMap;

    23 import java.util.List;

    24 import java.util.Map;

    25 

    26 /**

    27  *

    28  * @author Ing. František Kučera (frantovo.cz)

    29  */

    30 public class CLIParser {

    31 

    32 	public static final String TYPE_NAME_SEPARATOR = ":";

    33 

    34 	public CLIOptions parseOptions(String[] args) throws CLIParserException {

    35 		CLIOptions options = new CLIOptions();

    36 

    37 		List<SQLType> numberedTypes = new ArrayList<>();

    38 		Map<String, SQLType> namedTypes = new HashMap<>();

    39 

    40 		for (int i = 0; i < args.length; i++) {

    41 			String arg = args[i];

    42 			switch (arg) {

    43 				case Tokens.TYPES:

    44 					String typesString = fetchNext(args, ++i);

    45 

    46 					for (String oneType : typesString.split(",")) {

    47 						int sepatratorIndex = oneType.indexOf(TYPE_NAME_SEPARATOR);

    48 						if (sepatratorIndex == -1) {

    49 							numberedTypes.add(getType(oneType));

    50 						} else {

    51 							String namePart = oneType.substring(0, sepatratorIndex).trim();

    52 							String typePart = oneType.substring(sepatratorIndex + TYPE_NAME_SEPARATOR.length(), oneType.length());

    53 							namedTypes.put(namePart, getType(typePart));

    54 						}

    55 					}

    56 					break;

    57 				case Tokens.NAME_PREFIX:

    58 					options.setNamePrefix(fetchNext(args, ++i));

    59 					break;

    60 				case Tokens.NAME_SUFFIX:

    61 					options.setNameSuffix(fetchNext(args, ++i));

    62 					break;

    63 				case Tokens.DB:

    64 					options.setDatabaseName(fetchNext(args, ++i));

    65 					break;

    66 				case Tokens.SQL:

    67 					options.setSql(fetchNext(args, ++i));

    68 					break;

    69 				case Tokens.BATCH:

    70 					options.setBatch(true);

    71 					break;

    72 				case Tokens.DATA: // --data is the last option

    73 					for (i++; i < args.length; i++) {

    74 						arg = args[i];

    75 						Parameter parameter;

    76 						if (numberedTypes.isEmpty()) {

    77 							parameter = new Parameter(arg, null);

    78 						} else {

    79 							int paramIndex = options.getNumberedParameters().size();

    80 							SQLType paramType;

    81 							try {

    82 								paramType = numberedTypes.get(paramIndex);

    83 							} catch (IndexOutOfBoundsException e) {

    84 								throw new CLIParserException("Missing type for parameter #" + paramIndex, e);

    85 							} catch (NullPointerException e) {

    86 								throw new CLIParserException("Invalid type definition for parameter #" + paramIndex, e);

    87 							}

    88 							parameter = new Parameter(arg, paramType);

    89 						}

    90 						options.addNumberedParameter(parameter);

    91 					}

    92 					break;

    93 				case Tokens.DATA_NAMED:

    94 					for (i++; i < args.length; i++) {

    95 						String paramName = args[i];

    96 						String paramValue = fetchNext(args, ++i);

    97 						options.addNamedParameter(new NamedParameter(paramName, paramValue, namedTypes.get(paramName)));

    98 					}

    99 					break;

   100 				case Tokens.FORMATTER:

   101 					options.setFormatterName(fetchNext(args, ++i));

   102 					break;

   103 				case Tokens.INFO_HELP:

   104 					options.addShowInfo(InfoType.HELP);

   105 					break;

   106 				case Tokens.INFO_FORMATTERS:

   107 					options.addShowInfo(InfoType.FORMATTERS);

   108 					break;

   109 				case Tokens.INFO_LICENSE:

   110 					options.addShowInfo(InfoType.LICENSE);

   111 					break;

   112 				case Tokens.INFO_TYPES:

   113 					options.addShowInfo(InfoType.TYPES);

   114 					break;

   115 				case Tokens.INFO_VERSION:

   116 					options.addShowInfo(InfoType.VERSION);

   117 					break;

   118 				case Tokens.INFO_DATABASES:

   119 					options.addShowInfo(InfoType.DATABASES);

   120 					break;

   121 				case Tokens.INFO_CONNECTION:

   122 					options.addShowInfo(InfoType.CONNECTION);

   123 					options.addDatabaseNameToTest(fetchNext(args, ++i));

   124 					break;

   125 				default:

   126 					throw new CLIParserException("Unknown option: " + arg);

   127 			}

   128 		}

   129 		return options;

   130 	}

   131 

   132 	private String fetchNext(String[] args, int index) throws CLIParserException {

   133 		if (index < args.length) {

   134 			return args[index];

   135 		} else {

   136 			throw new CLIParserException("Expecting value for option: " + args[index - 1]);

   137 		}

   138 	}

   139 

   140 	public static class Tokens {

   141 

   142 		// bash-completion:options:

   143 		public static final String DB = "--db"; // bash-completion:option

   144 		public static final String SQL = "--sql"; // bash-completion:option

   145 		public static final String BATCH = "--batch"; // bash-completion:option

   146 		public static final String DATA = "--data"; // bash-completion:option

   147 		public static final String DATA_NAMED = "--data-named"; // bash-completion:option

   148 		public static final String NAME_PREFIX = "--name-prefix"; // bash-completion:option

   149 		public static final String NAME_SUFFIX = "--name-suffix"; // bash-completion:option

   150 		public static final String TYPES = "--types"; // bash-completion:option

   151 		public static final String FORMATTER = "--formatter"; // bash-completion:option

   152 		public static final String INFO_HELP = "--help"; // bash-completion:option

   153 		public static final String INFO_VERSION = "--version"; // bash-completion:option

   154 		public static final String INFO_LICENSE = "--license"; // bash-completion:option

   155 		public static final String INFO_FORMATTERS = "--list-formatters"; // bash-completion:option

   156 		public static final String INFO_TYPES = "--list-types"; // bash-completion:option

   157 		public static final String INFO_DATABASES = "--list-databases"; // bash-completion:option

   158 		public static final String INFO_CONNECTION = "--test-connection"; // bash-completion:option

   159 

   160 		private Tokens() {

   161 		}

   162 	}

   163 

   164 	private SQLType getType(String typeString) throws CLIParserException {

   165 		try {

   166 			return SQLType.valueOf(typeString.trim());

   167 		} catch (IllegalArgumentException e) {

   168 			throw new CLIParserException("Unsupported type: " + typeString, e);

   169 		}

   170 	}

   171 }
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