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java/sql-dk/src/info/globalcode/sql/dk/CLIOptions.java
author František Kučera <franta-hg@frantovo.cz>
Mon, 23 Dec 2013 11:50:24 +0100
branchv_0
changeset 37 9e6f8e5d5f98
parent 34 9335cf31c0f2
child 44 67581ec4396e
permissions -rw-r--r--
support SQL commands returning more ResultSets + remove COMMAND_TYPE (type is now derived from result returned from SQL – it is not needed to specify the type on CLI) 
     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.isNotEmpty;

    21 import static info.globalcode.sql.dk.Functions.isEmpty;

    22 import static info.globalcode.sql.dk.Functions.equalz;

    23 import java.io.OutputStream;

    24 import java.util.ArrayList;

    25 import java.util.Collection;

    26 import java.util.EnumSet;

    27 import java.util.List;

    28 

    29 /**

    30  *

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

    32  */

    33 public class CLIOptions {

    34 

    35 	public static final String DEFAULT_NAME_PREFIX = ":";

    36 	private String sql;

    37 	private String databaseName;

    38 	private String databaseNameToTest;

    39 	private String namePrefix = DEFAULT_NAME_PREFIX;

    40 	private String formatterName;

    41 	private boolean batch;

    42 

    43 	public enum MODE {

    44 

    45 		QUERY_NOW,

    46 		PREPARE_BATCH,

    47 		EXECUTE_BATCH,

    48 		JUST_SHOW_INFO

    49 	}

    50 

    51 	public enum INFO_TYPE {

    52 

    53 		HELP,

    54 		VERSION,

    55 		LICENSE,

    56 		FORMATTERS,

    57 		TYPES,

    58 		DATABASES,

    59 		CONNECTION

    60 	}

    61 	private final List<NamedParameter> namedParameters = new ArrayList<>();

    62 	private final List<Parameter> numberedParameters = new ArrayList<>();

    63 	private final EnumSet<INFO_TYPE> showInfo = EnumSet.noneOf(INFO_TYPE.class);

    64 

    65 	public void validate() throws InvalidOptionsException {

    66 		InvalidOptionsException e = new InvalidOptionsException();

    67 

    68 		MODE mode = getMode();

    69 		if (mode == null) {

    70 			e.addProblem(new InvalidOptionsException.OptionProblem("Invalid combination of DB, SQL and BATCH – please specify just 2 of this 3 options"));

    71 		} else if (mode == MODE.JUST_SHOW_INFO) {

    72 			if (!namedParameters.isEmpty()) {

    73 				e.addProblem(new InvalidOptionsException.OptionProblem("Do not use named parameters if just showing info."));

    74 			}

    75 			if (!numberedParameters.isEmpty()) {

    76 				e.addProblem(new InvalidOptionsException.OptionProblem("Do not use numbered parameters if just showing info."));

    77 			}

    78 			if (isNotEmpty(sql, false)) {

    79 				e.addProblem(new InvalidOptionsException.OptionProblem("Do not specify SQL if just showing info."));

    80 			}

    81 			if (isNotEmpty(databaseName, false)) {

    82 				e.addProblem(new InvalidOptionsException.OptionProblem("Do not specify database if just showing info."));

    83 			}

    84 			if (batch) {

    85 				e.addProblem(new InvalidOptionsException.OptionProblem("Do not specify batch if just showing info."));

    86 			}

    87 			if (isNotEmpty(formatterName, false)) {

    88 				e.addProblem(new InvalidOptionsException.OptionProblem("Do not specify formatter if just showing info."));

    89 			}

    90 			if (!equalz(namePrefix, DEFAULT_NAME_PREFIX)) {

    91 				e.addProblem(new InvalidOptionsException.OptionProblem("Do not specify name prefix if just showing info."));

    92 			}

    93 			if (showInfo.contains(INFO_TYPE.CONNECTION) && isEmpty(databaseNameToTest, false)) {

    94 				e.addProblem(new InvalidOptionsException.OptionProblem("Please specify which database should be tested."));

    95 			}

    96 		}

    97 

    98 		if (!namedParameters.isEmpty() && !numberedParameters.isEmpty()) {

    99 			e.addProblem(new InvalidOptionsException.OptionProblem("Named and numbered parameters can not be used together in one command."));

   100 		}

   101 

   102 

   103 		if (e.hasProblems()) {

   104 			throw e;

   105 		}

   106 	}

   107 

   108 	private boolean hasSql() {

   109 		return isNotEmpty(getSql(), true);

   110 	}

   111 

   112 	private boolean hasDb() {

   113 		return isNotEmpty(getDatabaseName(), true);

   114 	}

   115 

   116 	/**

   117 	 * Depends on options: DB, BATCH, SQL

   118 	 *

   119 	 * @return mode | or null if options are not yet initialized or combination of options is

   120 	 * invalid

   121 	 */

   122 	public MODE getMode() {

   123 		if (hasDb() && !batch && hasSql()) {

   124 			return MODE.QUERY_NOW;

   125 		} else if (!hasDb() && batch && hasSql()) {

   126 			return MODE.PREPARE_BATCH;

   127 		} else if (hasDb() && batch && !hasSql()) {

   128 			return MODE.EXECUTE_BATCH;

   129 		} else {

   130 			return showInfo.isEmpty() ? null : MODE.JUST_SHOW_INFO;

   131 		}

   132 	}

   133 

   134 	public String getSql() {

   135 		return sql;

   136 	}

   137 

   138 	public void setSql(String sql) {

   139 		this.sql = sql;

   140 	}

   141 

   142 	public String getDatabaseName() {

   143 		return databaseName;

   144 	}

   145 

   146 	public void setDatabaseName(String databaseName) {

   147 		this.databaseName = databaseName;

   148 	}

   149 

   150 	public void setBatch(boolean batch) {

   151 		this.batch = batch;

   152 	}

   153 

   154 	public Collection<NamedParameter> getNamedParameters() {

   155 		return namedParameters;

   156 	}

   157 

   158 	public List<Parameter> getNumberedParameters() {

   159 		return numberedParameters;

   160 	}

   161 

   162 	public void addNumberedParameter(Parameter p) {

   163 		numberedParameters.add(p);

   164 	}

   165 

   166 	public void addNamedParameter(NamedParameter p) {

   167 		namedParameters.add(p);

   168 	}

   169 

   170 	public String getNamePrefix() {

   171 		return namePrefix;

   172 	}

   173 

   174 	public void setNamePrefix(String namePrefix) {

   175 		this.namePrefix = namePrefix;

   176 	}

   177 

   178 	public String getFormatterName() {

   179 		return formatterName;

   180 	}

   181 

   182 	public void setFormatterName(String formatterName) {

   183 		this.formatterName = formatterName;

   184 	}

   185 

   186 	public void addShowInfo(INFO_TYPE info) {

   187 		showInfo.add(info);

   188 	}

   189 

   190 	public EnumSet<INFO_TYPE> getShowInfo() {

   191 		return showInfo;

   192 	}

   193 

   194 	public String getDatabaseNameToTest() {

   195 		return databaseNameToTest;

   196 	}

   197 

   198 	public void setDatabaseNameToTest(String databaseNameToTest) {

   199 		this.databaseNameToTest = databaseNameToTest;

   200 	}

   201 

   202 	public SQLCommand getSQLCommand() {

   203 		if (namedParameters.isEmpty()) {

   204 			return new SQLCommandNumbered(sql, numberedParameters);

   205 		} else {

   206 			return new SQLCommandNamed(sql, namedParameters);

   207 		}

   208 	}

   209 

   210 	public OutputStream getOutputStream() {

   211 		return System.out;

   212 	}

   213 }
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