abstract class AbstractPrimitiveRangeGenerator<T extends Number & Comparable<T>> extends AbstractRangeGenerator<T> {
private static final Logger LOG = LoggerFactory.getLogger(AbstractPrimitiveRangeGenerator.class);
- private final String primitiveName;
- private final T minValue;
- private final T maxValue;
+ private final @NonNull String primitiveName;
+ private final @NonNull T minValue;
+ private final @NonNull T maxValue;
- protected AbstractPrimitiveRangeGenerator(final Class<T> typeClass, final String primitiveName, final T minValue,
+ AbstractPrimitiveRangeGenerator(final Class<T> typeClass, final String primitiveName, final T minValue,
final T maxValue) {
super(typeClass);
this.primitiveName = requireNonNull(primitiveName);
return minValue.compareTo(minToEnforce) < 0;
}
- private Collection<String> createExpressions(final RangeConstraint<?> constraint) {
+ private Collection<String> createExpressions(final RangeConstraint<?> constraint,
+ final Function<Class<?>, String> classImporter) {
final Set<? extends Range<? extends Number>> constraints = constraint.getAllowedRanges().asRanges();
final Collection<String> ret = new ArrayList<>(constraints.size());
final StringBuilder sb = new StringBuilder();
if (needMin) {
- sb.append("value >= ").append(format(min));
+ appendMinCheck(sb, min, classImporter);
}
if (needMax) {
if (needMin) {
sb.append(" && ");
}
- sb.append("value <= ").append(format(max));
+ appendMaxCheck(sb, max, classImporter);
}
ret.add(sb.toString());
return ret;
}
+ void appendMaxCheck(final StringBuilder sb, final T max, final Function<Class<?>, String> classImporter) {
+ sb.append("value <= ").append(format(max));
+ }
+
+ void appendMinCheck(final StringBuilder sb, final T min, final Function<Class<?>, String> classImporter) {
+ sb.append("value >= ").append(format(min));
+ }
+
+ /**
+ * Format a value into a Java-compilable expression which results in the appropriate
+ * type.
+ *
+ * @param value Number value
+ * @return Java language string representation
+ */
+ protected abstract @NonNull String format(T value);
+
+ String codeHelpersThrow() {
+ return "throwInvalidRange";
+ }
+
private String createRangeString(final RangeConstraint<?> constraint) {
final Set<? extends Range<? extends Number>> constraints = constraint.getAllowedRanges().asRanges();
final List<Range<T>> ranges = new ArrayList<>(constraints.size());
protected final String generateRangeCheckerImplementation(final String checkerName,
final RangeConstraint<?> constraints, final Function<Class<?>, String> classImporter) {
final StringBuilder sb = new StringBuilder();
- final Collection<String> expressions = createExpressions(constraints);
+ final Collection<String> expressions = createExpressions(constraints, classImporter);
sb.append("private static void ").append(checkerName).append("(final ").append(primitiveName)
.append(" value) {\n");
sb.append(" }\n");
}
- sb.append(" ").append(classImporter.apply(CodeHelpers.class)).append(".throwInvalidRange(\"")
- .append(createRangeString(constraints)).append("\", value);\n");
+ sb.append(" ").append(classImporter.apply(CodeHelpers.class)).append('.').append(codeHelpersThrow())
+ .append("(\"").append(createRangeString(constraints)).append("\", value);\n");
}
return sb.append("}\n").toString();