Mercurialsql-dk / file revision
summary | shortlog | changelog | graph | tags | bookmarks | branches | files | changeset | file | latest | revisions | annotate | diff | raw | help
java/sql-dk/src/main/java/info/globalcode/sql/dk/CLIParser.java
author František Kučera <franta-hg@frantovo.cz>
Mon, 04 Mar 2019 20:15:24 +0100
branchv_0
changeset 238 4a1864c3e867
parent 217 java/sql-dk/src/info/globalcode/sql/dk/CLIParser.java@84bab99dda50
child 246 277c18b48762
permissions -rw-r--r--
mavenized: sql-dk 
     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 static info.globalcode.sql.dk.Functions.readString;

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

    22 import info.globalcode.sql.dk.configuration.Property;

    23 import java.io.IOException;

    24 import java.io.InputStream;

    25 import java.util.ArrayList;

    26 import java.util.HashMap;

    27 import java.util.List;

    28 import java.util.Map;

    29 

    30 /**

    31  * Converts command line arguments from String array to object.

    32  * Checks basic constraints (if only supported options are used and if they have correct number of

    33  * parameters)

    34  *

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

    36  */

    37 public class CLIParser {

    38 

    39 	public static final String TYPE_NAME_SEPARATOR = ":";

    40 

    41 	public CLIOptions parseOptions(String[] args, InputStream in) throws CLIParserException {

    42 		CLIOptions options = new CLIOptions();

    43 

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

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

    46 

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

    48 			String arg = args[i];

    49 			switch (arg) {

    50 				case Tokens.TYPES:

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

    52 

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

    54 						int sepatratorIndex = oneType.indexOf(TYPE_NAME_SEPARATOR);

    55 						if (sepatratorIndex == -1) {

    56 							numberedTypes.add(getType(oneType.toUpperCase()));

    57 						} else {

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

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

    60 							namedTypes.put(namePart, getType(typePart.toUpperCase()));

    61 						}

    62 					}

    63 					break;

    64 				case Tokens.NAME_PREFIX:

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

    66 					break;

    67 				case Tokens.NAME_SUFFIX:

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

    69 					break;

    70 				case Tokens.DB:

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

    72 					break;

    73 				case Tokens.SQL:

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

    75 					break;

    76 				case Tokens.SQL_IN:

    77 					try {

    78 						options.setSql(readString(in));

    79 					} catch (IOException e) {

    80 						throw new CLIParserException("Unable to read SQL from the input stream", e);

    81 					}

    82 					break;

    83 				case Tokens.BATCH:

    84 					options.setBatch(true);

    85 					break;

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

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

    88 						arg = args[i];

    89 						Parameter parameter;

    90 						if (numberedTypes.isEmpty()) {

    91 							parameter = new Parameter(arg, null);

    92 						} else {

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

    94 							SQLType paramType;

    95 							try {

    96 								paramType = numberedTypes.get(paramIndex);

    97 							} catch (IndexOutOfBoundsException e) {

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

    99 							} catch (NullPointerException e) {

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

   101 							}

   102 							parameter = new Parameter(arg, paramType);

   103 						}

   104 						options.addNumberedParameter(parameter);

   105 					}

   106 					break;

   107 				case Tokens.DATA_NAMED:

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

   109 						String paramName = args[i];

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

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

   112 					}

   113 					break;

   114 				case Tokens.FORMATTER:

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

   116 					break;

   117 				case Tokens.DB_PROPERTY:

   118 					options.addDatabaseProperty(new Property(fetchNext(args, ++i), fetchNext(args, ++i)));

   119 					break;

   120 				case Tokens.FORMATTER_PROPERTY:

   121 					options.addFormatterProperty(new Property(fetchNext(args, ++i), fetchNext(args, ++i)));

   122 					break;

   123 				case Tokens.INFO_HELP:

   124 					options.addShowInfo(InfoType.HELP);

   125 					break;

   126 				case Tokens.INFO_FORMATTERS:

   127 					options.addShowInfo(InfoType.FORMATTERS);

   128 					break;

   129 				case Tokens.INFO_FORMATTER_PROPERTIES:

   130 					options.addShowInfo(InfoType.FORMATTER_PROPERTIES);

   131 					options.addFormatterNameToListProperties(fetchNext(args, ++i));

   132 					break;

   133 				case Tokens.INFO_LICENSE:

   134 					options.addShowInfo(InfoType.LICENSE);

   135 					break;

   136 				case Tokens.INFO_JAVA_PROPERTIES:

   137 					options.addShowInfo(InfoType.JAVA_PROPERTIES);

   138 					break;

   139 				case Tokens.INFO_ENVIRONMENT_VARIABLES:

   140 					options.addShowInfo(InfoType.ENVIRONMENT_VARIABLES);

   141 					break;

   142 				case Tokens.INFO_TYPES:

   143 					options.addShowInfo(InfoType.TYPES);

   144 					break;

   145 				case Tokens.INFO_VERSION:

   146 					options.addShowInfo(InfoType.VERSION);

   147 					break;

   148 				case Tokens.INFO_JDBC_DRIVERS:

   149 					options.addShowInfo(InfoType.JDBC_DRIVERS);

   150 					break;

   151 				case Tokens.INFO_JDBC_PROPERTIES:

   152 					options.addShowInfo(InfoType.JDBC_PROPERTIES);

   153 					options.addDatabaseNameToListProperties(fetchNext(args, ++i));

   154 					break;

   155 				case Tokens.INFO_DATABASES:

   156 					options.addShowInfo(InfoType.DATABASES);

   157 					break;

   158 				case Tokens.INFO_CONNECTION:

   159 					options.addShowInfo(InfoType.CONNECTION);

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

   161 					break;

   162 				default:

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

   164 			}

   165 		}

   166 		return options;

   167 	}

   168 

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

   170 		if (index < args.length) {

   171 			return args[index];

   172 		} else {

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

   174 		}

   175 	}

   176 

   177 	public static class Tokens {

   178 

   179 		// bash-completion:options:

   180 		public static final String DB = "--db"; // bash-completion:option // help: database name

   181 		public static final String DB_PROPERTY = "--db-property"; // bash-completion:option // help: name and value

   182 		public static final String SQL = "--sql"; // bash-completion:option // help: SQL query/command

   183 		public static final String SQL_IN = "--sql-in"; // bash-completion:option // help: SQL query/command

   184 		public static final String BATCH = "--batch"; // bash-completion:option // help: batch mode (no argument)

   185 		public static final String DATA = "--data"; // bash-completion:option // help: list of ordinal parameters

   186 		public static final String DATA_NAMED = "--data-named"; // bash-completion:option // help: list of named parameters

   187 		public static final String NAME_PREFIX = "--name-prefix"; // bash-completion:option // help: parameter name prefix – regular expression

   188 		public static final String NAME_SUFFIX = "--name-suffix"; // bash-completion:option // help: parameter name suffix – regular expression

   189 		public static final String TYPES = "--types"; // bash-completion:option // help: comma separated list of parameter types

   190 		public static final String FORMATTER = "--formatter"; // bash-completion:option // help: name of the output formatter

   191 		public static final String FORMATTER_PROPERTY = "--formatter-property"; // bash-completion:option // help: name and value

   192 		public static final String INFO_HELP = "--help"; // bash-completion:option // help: print this help

   193 		public static final String INFO_VERSION = "--version"; // bash-completion:option // help: print version info

   194 		public static final String INFO_LICENSE = "--license"; // bash-completion:option // help: print license

   195 		public static final String INFO_JAVA_PROPERTIES = "--list-java-properties"; // bash-completion:option // help: list of Java system properties

   196 		public static final String INFO_ENVIRONMENT_VARIABLES = "--list-environment-variables"; // bash-completion:option // help: list of environment variables

   197 		public static final String INFO_FORMATTERS = "--list-formatters"; // bash-completion:option // help: print list of available formatters

   198 		public static final String INFO_FORMATTER_PROPERTIES = "--list-formatter-properties"; // bash-completion:option // help: print list of available properties for given formatter

   199 		public static final String INFO_TYPES = "--list-types"; // bash-completion:option // help: print list of available data types

   200 		public static final String INFO_JDBC_DRIVERS = "--list-jdbc-drivers"; // bash-completion:option // help: list of available JDBC drivers

   201 		public static final String INFO_JDBC_PROPERTIES = "--list-jdbc-properties"; // bash-completion:option // help: list of available JDBC properties for given database

   202 		public static final String INFO_DATABASES = "--list-databases"; // bash-completion:option // help: print list of configured databases

   203 		public static final String INFO_CONNECTION = "--test-connection"; // bash-completion:option // help: test connection to particular database

   204 

   205 		private Tokens() {

   206 		}

   207 	}

   208 

   209 	private SQLType getType(String typeString) throws CLIParserException {

   210 		try {

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

   212 		} catch (IllegalArgumentException e) {

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

   214 		}

   215 	}

   216 }
sql-dk