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java/sql-dk/src/info/globalcode/sql/dk/CLIOptions.java
author František Kučera <franta-hg@frantovo.cz>
Thu, 26 Dec 2013 00:58:00 +0100
branchv_0
changeset 63 3b9ec9c23a37
parent 54 53020d0bd2e4
child 69 0befec5034c2
permissions -rw-r--r--
validation: test if prefix/suffix are valid regular expressions 
     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 import java.util.regex.Pattern;

    29 import java.util.regex.PatternSyntaxException;

    30 

    31 /**

    32  *

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

    34  */

    35 public class CLIOptions {

    36 

    37 	public static final String DEFAULT_NAME_PREFIX = ":";

    38 	public static final String DEFAULT_NAME_SUFFIX = "(?=([^\\w]|$))";

    39 	private String sql;

    40 	private String databaseName;

    41 	private String databaseNameToTest;

    42 	private String namePrefix = DEFAULT_NAME_PREFIX;

    43 	private String nameSuffix = DEFAULT_NAME_SUFFIX;

    44 	private String formatterName;

    45 	private boolean batch;

    46 

    47 	public enum MODE {

    48 

    49 		QUERY_NOW,

    50 		PREPARE_BATCH,

    51 		EXECUTE_BATCH,

    52 		JUST_SHOW_INFO

    53 	}

    54 

    55 	public enum INFO_TYPE {

    56 

    57 		HELP,

    58 		VERSION,

    59 		LICENSE,

    60 		FORMATTERS,

    61 		TYPES,

    62 		DATABASES,

    63 		CONNECTION

    64 	}

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

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

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

    68 

    69 	public void validate() throws InvalidOptionsException {

    70 		InvalidOptionsException e = new InvalidOptionsException();

    71 

    72 		MODE mode = getMode();

    73 		if (mode == null) {

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

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

    76 			if (!namedParameters.isEmpty()) {

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

    78 			}

    79 			if (!numberedParameters.isEmpty()) {

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

    81 			}

    82 			if (isNotEmpty(sql, false)) {

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

    84 			}

    85 			if (isNotEmpty(databaseName, false)) {

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

    87 			}

    88 			if (batch) {

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

    90 			}

    91 			if (isNotEmpty(formatterName, false)) {

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

    93 			}

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

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

    96 			}

    97 			if (!equalz(nameSuffix, DEFAULT_NAME_SUFFIX)) {

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

    99 			}

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

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

   102 			}

   103 		}

   104 

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

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

   107 		}

   108 

   109 		try {

   110 			Pattern.compile(namePrefix + "test" + nameSuffix);

   111 		} catch (PatternSyntaxException regexException) {

   112 			e.addProblem(new InvalidOptionsException.OptionProblem("Ivalid regular expression in name prefix or suffix", regexException));

   113 		}

   114 

   115 		if (e.hasProblems()) {

   116 			throw e;

   117 		}

   118 	}

   119 

   120 	private boolean hasSql() {

   121 		return isNotEmpty(getSql(), true);

   122 	}

   123 

   124 	private boolean hasDb() {

   125 		return isNotEmpty(getDatabaseName(), true);

   126 	}

   127 

   128 	/**

   129 	 * Depends on options: DB, BATCH, SQL

   130 	 *

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

   132 	 * invalid

   133 	 */

   134 	public MODE getMode() {

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

   136 			return MODE.QUERY_NOW;

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

   138 			return MODE.PREPARE_BATCH;

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

   140 			return MODE.EXECUTE_BATCH;

   141 		} else {

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

   143 		}

   144 	}

   145 

   146 	public String getSql() {

   147 		return sql;

   148 	}

   149 

   150 	public void setSql(String sql) {

   151 		this.sql = sql;

   152 	}

   153 

   154 	public String getDatabaseName() {

   155 		return databaseName;

   156 	}

   157 

   158 	public void setDatabaseName(String databaseName) {

   159 		this.databaseName = databaseName;

   160 	}

   161 

   162 	public void setBatch(boolean batch) {

   163 		this.batch = batch;

   164 	}

   165 

   166 	public Collection<NamedParameter> getNamedParameters() {

   167 		return namedParameters;

   168 	}

   169 

   170 	public List<Parameter> getNumberedParameters() {

   171 		return numberedParameters;

   172 	}

   173 

   174 	public void addNumberedParameter(Parameter p) {

   175 		numberedParameters.add(p);

   176 	}

   177 

   178 	public void addNamedParameter(NamedParameter p) {

   179 		namedParameters.add(p);

   180 	}

   181 

   182 	/**

   183 	 * @return regular expression describing the name prefix

   184 	 */

   185 	public String getNamePrefix() {

   186 		return namePrefix;

   187 	}

   188 

   189 	/**

   190 	 * @see #getNamePrefix()

   191 	 */

   192 	public void setNamePrefix(String namePrefix) {

   193 		this.namePrefix = namePrefix;

   194 	}

   195 

   196 	/**

   197 	 * @return regular expression describing the name prefix

   198 	 */

   199 	public String getNameSuffix() {

   200 		return nameSuffix;

   201 	}

   202 

   203 	/**

   204 	 * @see #getNameSuffix()

   205 	 */

   206 	public void setNameSuffix(String nameSuffix) {

   207 		this.nameSuffix = nameSuffix;

   208 	}

   209 

   210 	public String getFormatterName() {

   211 		return formatterName;

   212 	}

   213 

   214 	public void setFormatterName(String formatterName) {

   215 		this.formatterName = formatterName;

   216 	}

   217 

   218 	public void addShowInfo(INFO_TYPE info) {

   219 		showInfo.add(info);

   220 	}

   221 

   222 	public EnumSet<INFO_TYPE> getShowInfo() {

   223 		return showInfo;

   224 	}

   225 

   226 	public String getDatabaseNameToTest() {

   227 		return databaseNameToTest;

   228 	}

   229 

   230 	public void setDatabaseNameToTest(String databaseNameToTest) {

   231 		this.databaseNameToTest = databaseNameToTest;

   232 	}

   233 

   234 	public SQLCommand getSQLCommand() {

   235 		if (namedParameters.isEmpty()) {

   236 			return new SQLCommandNumbered(sql, numberedParameters);

   237 		} else {

   238 			return new SQLCommandNamed(sql, namedParameters, namePrefix, nameSuffix);

   239 		}

   240 	}

   241 

   242 	public OutputStream getOutputStream() {

   243 		return System.out;

   244 	}

   245 }
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