/**
* The <code>verifyFileExists()</code> method verifies that the specified file exists and is
* readable. If the file does not exist, it will report an error to the user and return <code>
* false</code>.
*
* @param file the name of the file
* @return true if the file exists and is readable; false otherwise
*/
public static boolean verifyFileExists(String file) {
File f = new File(file);
if (!f.exists()) {
userError("File not found", file);
return false;
}
return true;
}
/**
* The method is called by an option implementation when there is a problem parsing the value for
* an option supplied by the user on the command line. For example, if an integer is not in the
* correct format, this method will be called, which will report an error.
*
* @param name the name of the option
* @param type the value type
* @param val the (invalid) value passed
*/
protected void parseError(String name, String type, String val) {
Util.userError(
"Option Error",
"invalid value for "
+ type
+ " option "
+ StringUtil.quote(name)
+ " = "
+ StringUtil.quote(val));
}