package org.neo4j.util.matching.filter;
import java.util.regex.Pattern;
/**
* A regex pattern with or without options, f.ex. "i" means case-insensitive.
*/
public class RegexPattern extends AbstractFilterExpression
{
private final Pattern pattern;
public RegexPattern( String label, String property, String pattern,
String options )
{
super( label, property );
int op = 0;
op |= hasOption( options, 'i' ) ? Pattern.CASE_INSENSITIVE : 0;
this.pattern = Pattern.compile( pattern, op );
}
public boolean matches( FilterValueGetter valueGetter )
{
Object values[] = valueGetter.getValues( getLabel() );
for ( Object value : values )
{
boolean matches = this.pattern.matcher( value.toString() ).find();
if ( matches )
{
return true;
}
}
return false;
}
private static boolean hasOption( String options, char option )
{
return options != null && options.indexOf( option ) > -1;
}
}