2 * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.yangtools.sal.java.api.generator;
10 import com.google.common.base.Preconditions;
11 import com.google.common.collect.Range;
12 import java.util.ArrayList;
13 import java.util.Collection;
14 import java.util.List;
15 import org.opendaylight.yangtools.yang.model.api.type.RangeConstraint;
16 import org.slf4j.Logger;
17 import org.slf4j.LoggerFactory;
19 abstract class AbstractPrimitiveRangeGenerator<T extends Number & Comparable<T>> extends AbstractRangeGenerator<T> {
20 private static final Logger LOG = LoggerFactory.getLogger(AbstractPrimitiveRangeGenerator.class);
21 private final T minValue;
22 private final T maxValue;
24 protected AbstractPrimitiveRangeGenerator(final Class<T> typeClass, final T minValue, final T maxValue) {
26 this.minValue = Preconditions.checkNotNull(minValue);
27 this.maxValue = Preconditions.checkNotNull(maxValue);
30 private boolean needsMaximumEnforcement(final T maxToEnforce) {
31 return maxValue.compareTo(maxToEnforce) > 0;
34 private boolean needsMinimumEnforcement(final T minToEnforce) {
35 return minValue.compareTo(minToEnforce) < 0;
38 private final Collection<String> createExpressions(final Collection<RangeConstraint> constraints) {
39 final Collection<String> ret = new ArrayList<>(constraints.size());
41 for (RangeConstraint r : constraints) {
42 final T min = getValue(r.getMin());
43 final boolean needMin = needsMinimumEnforcement(min);
45 final T max = getValue(r.getMax());
46 final boolean needMax = needsMaximumEnforcement(max);
48 if (!needMin && !needMax) {
49 LOG.debug("Type {} indicates [{}, {}] does not require enforcement", getTypeName(), min, max);
53 final StringBuilder sb = new StringBuilder();
55 sb.append("value >= ").append(format(min));
61 sb.append("value <= ").append(format(max));
64 ret.add(sb.toString());
70 private String createRangeString(final Collection<RangeConstraint> constraints) {
71 final List<Range<T>> ranges = new ArrayList<>(constraints.size());
73 for (RangeConstraint c : constraints) {
74 ranges.add(Range.closed(getValue(c.getMin()), getValue(c.getMax())));
77 return ranges.toString();
81 protected final String generateRangeCheckerImplementation(final String checkerName, final Collection<RangeConstraint> constraints) {
82 final StringBuilder sb = new StringBuilder();
83 final Collection<String> expressions = createExpressions(constraints);
85 sb.append("private static void ").append(checkerName).append("(final ").append(getTypeName()).append(" value) {\n");
87 if (!expressions.isEmpty()) {
88 for (String exp : expressions) {
89 sb.append(" if (").append(exp).append(") {\n");
90 sb.append(" return;\n");
94 sb.append(" throw new IllegalArgumentException(String.format(\"Invalid range: %s, expected: ")
95 .append(createRangeString(constraints)).append(".\", value));\n");
100 return sb.toString();