-/*
- * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-package org.opendaylight.mdsal.binding.java.api.generator;
-
-import com.google.common.collect.Range;
-import java.lang.reflect.Array;
-import java.util.Locale;
-import java.util.Set;
-import java.util.function.Function;
-import org.opendaylight.yangtools.yang.binding.CodeHelpers;
-import org.opendaylight.yangtools.yang.model.api.type.RangeConstraint;
-
-/**
- * Abstract base for generators which require instantiation of boundary values to check. These are implemented
- * by generating an array constant within the class, which contains {@link Range} instances, which hold pre-instantiated
- * boundary values.
- *
- * @param <T> type of the class
- */
-abstract class AbstractBigRangeGenerator<T extends Number & Comparable<T>> extends AbstractRangeGenerator<T> {
- protected AbstractBigRangeGenerator(final Class<T> typeClass) {
- super(typeClass);
- }
-
- private static String range(final Function<Class<?>, String> classImporter) {
- return classImporter.apply(Range.class);
- }
-
- private String itemType(final Function<Class<?>, String> classImporter) {
- return range(classImporter) + '<' + getTypeName() + '>';
- }
-
- private String arrayType(final Function<Class<?>, String> classImporter) {
- return itemType(classImporter) + "[]";
- }
-
- @Override
- protected final String generateRangeCheckerImplementation(final String checkerName,
- final RangeConstraint<?> constraint, final Function<Class<?>, String> classImporter) {
- final Set<? extends Range<? extends Number>> constraints = constraint.getAllowedRanges().asRanges();
- final String fieldName = checkerName.toUpperCase(Locale.ENGLISH) + "_RANGES";
- final StringBuilder sb = new StringBuilder();
-
- // Field to hold the Range objects in an array
- sb.append("private static final ").append(arrayType(classImporter)).append(' ').append(fieldName).append(";\n");
-
- // Static initializer block for the array
- sb.append("static {\n");
- sb.append(" @SuppressWarnings(\"unchecked\")\n");
- sb.append(" final ").append(arrayType(classImporter)).append(" a = (").append(arrayType(classImporter))
- .append(") ").append(classImporter.apply(Array.class)).append(".newInstance(").append(range(classImporter))
- .append(".class, ").append(constraints.size()).append(");\n");
-
- int offset = 0;
- for (Range<? extends Number> r : constraints) {
- final String min = format(getValue(r.lowerEndpoint()));
- final String max = format(getValue(r.upperEndpoint()));
-
- sb.append(" a[").append(offset++).append("] = ").append(range(classImporter)).append(".closed(")
- .append(min).append(", ").append(max).append(");\n");
- }
-
- sb.append(" ").append(fieldName).append(" = a;\n");
- sb.append("}\n");
-
- // Static enforcement method
- sb.append("private static void ").append(checkerName).append("(final ").append(getTypeName())
- .append(" value) {\n");
- sb.append(" for (").append(itemType(classImporter)).append(" r : ").append(fieldName).append(") {\n");
- sb.append(" if (r.contains(value)) {\n");
- sb.append(" return;\n");
- sb.append(" }\n");
- sb.append(" }\n");
-
- sb.append(" ").append(classImporter.apply(CodeHelpers.class)).append(".throwInvalidRange(").append(fieldName)
- .append(", value);\n");
- sb.append("}\n");
-
- return sb.toString();
- }
-}