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package org.netbeans.validation.api.conversion;

import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
import org.netbeans.validation.api.AbstractValidator;
import org.netbeans.validation.api.Problems;
import org.netbeans.validation.api.Validator;

/**
 *
 * @author Tim Boudreau
 */
final class StringToDocumentConverter extends Converter <String, Document> {

    StringToDocumentConverter() {
        super (String.class, Document.class);
    }

    @Override
    public Validator<Document> convert(Validator<String> from) {
        return new DocValidator (from);
    }

    private static class DocValidator extends AbstractValidator<Document> {
        private Validator<String> wrapped;

        private DocValidator(Validator<String> from) {
            super (Document.class);
            this.wrapped = from;
        }

        @Override
        public void validate(Problems problems, String compName, Document model) {
            try {
                String text = model.getText(0, model.getLength());
                wrapped.validate(problems, compName, text);
            } catch (BadLocationException ex) {
                throw new IllegalStateException (ex);
            }
        }

        @Override
        public String toString() {
            return "DocValidator for [" + wrapped + "]";
        }
    }
}