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HelpCommand.java
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43 lines (36 loc) · 1.06 KB
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package org.utplsql.cli;
import com.beust.jcommander.JCommander;
/** Simple Help-Command which outputs an (optional) error message and the command line usage
* @author pesse
*/
public class HelpCommand implements ICommand {
private final String errorMessage;
private final JCommander jCommander;
public HelpCommand(JCommander jCommander) {
this.jCommander = jCommander;
this.errorMessage = null;
}
public HelpCommand( JCommander jCommander, String errorMessage ) {
this.jCommander = jCommander;
this.errorMessage = errorMessage;
}
@Override
public int run() {
if ( errorMessage != null ) {
System.out.println(errorMessage);
if (jCommander.getParsedCommand() != null)
jCommander.usage(jCommander.getParsedCommand());
else
jCommander.usage();
return 1;
}
else {
jCommander.usage();
return 0;
}
}
@Override
public String getCommand() {
return "-h";
}
}