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package org.openecomp.sdc.toscaparser.api.elements.constraints;
import java.util.regex.Matcher;
import java.util.regex.PatternSyntaxException;
import org.openecomp.sdc.toscaparser.api.common.ExceptionCollector;
public class Pattern extends Constraint {
@Override
protected void _setValues() {
constraintKey = PATTERN;
validTypes.add("String");
validPropTypes.add(Schema.STRING);
}
public Pattern(String name,String type,Object c) {
super(name,type,c);
if(!validTypes.contains(constraintValue.getClass().getSimpleName())) {
ExceptionCollector.appendException("InvalidSchemaError: The property \"pattern\" expects a string");
}
}
@Override
protected boolean _isValid(Object value) {
try {
if(!(value instanceof String)) {
ExceptionCollector.appendException(String.format("ValueError: Input value \"%s\" to \"pattern\" property \"%s\" must be a string",
value.toString(),propertyName));
return false;
}
String strp = constraintValue.toString();
String strm = value.toString();
java.util.regex.Pattern pattern = java.util.regex.Pattern.compile(strp);
Matcher matcher = pattern.matcher(strm);
if(matcher.find() && matcher.end() == strm.length()) {
return true;
}
return false;
}
catch(PatternSyntaxException pse) {
ExceptionCollector.appendException(String.format("ValueError: Invalid regex \"%s\" in \"pattern\" property \"%s\"",
constraintValue.toString(),propertyName));
return false;
}
}
@Override
protected String _errMsg(Object value) {
return String.format("The value \"%s\" of property \"%s\" does not match the pattern \"%s\"",
value.toString(),propertyName,constraintValue.toString());
}
}
/*python
class Pattern(Constraint):
"""Constraint class for "pattern"
Constrains the property or parameter to a value that is allowed by
the provided regular expression.
"""
constraint_key = Constraint.PATTERN
valid_types = (str, )
valid_prop_types = (Schema.STRING, )
def __init__(self, property_name, property_type, constraint):
super(Pattern, self).__init__(property_name, property_type, constraint)
if not isinstance(self.constraint_value, self.valid_types):
ExceptionCollector.appendException(
InvalidSchemaError(message=_('The property "pattern" '
'expects a string.')))
self.match = re.compile(self.constraint_value).match
def _is_valid(self, value):
match = self.match(value)
return match is not None and match.end() == len(value)
def _err_msg(self, value):
return (_('The value "%(pvalue)s" of property "%(pname)s" does not '
'match pattern "%(cvalue)s".') %
dict(pname=self.property_name,
pvalue=value,
cvalue=self.constraint_value))
*/
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