2 * Copyright (c) 2018 Pantheon Technologies, s.r.o. 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.mdsal.binding.java.api.generator;
10 import static com.google.common.base.Verify.verify;
11 import static java.util.Objects.requireNonNull;
13 import java.util.Arrays;
14 import java.util.List;
16 import java.util.Objects;
17 import java.util.Optional;
18 import java.util.regex.Pattern;
19 import java.util.stream.Collectors;
20 import org.eclipse.jdt.annotation.NonNull;
21 import org.opendaylight.mdsal.binding.model.api.ConcreteType;
22 import org.opendaylight.mdsal.binding.model.api.GeneratedProperty;
23 import org.opendaylight.mdsal.binding.model.api.GeneratedTransferObject;
24 import org.opendaylight.mdsal.binding.model.api.GeneratedType;
25 import org.opendaylight.mdsal.binding.model.api.JavaTypeName;
26 import org.opendaylight.mdsal.binding.model.api.ParameterizedType;
27 import org.opendaylight.mdsal.binding.model.api.Restrictions;
28 import org.opendaylight.mdsal.binding.model.api.Type;
29 import org.opendaylight.mdsal.binding.model.util.Types;
30 import org.opendaylight.yangtools.yang.binding.CodeHelpers;
33 * Base Java file template. Contains a non-null type and imports which the generated code refers to.
35 class JavaFileTemplate {
37 * {@code java.lang.Class} as a JavaTypeName.
39 static final @NonNull JavaTypeName CLASS = JavaTypeName.create(Class.class);
41 * {@code java.lang.Deprecated} as a JavaTypeName.
43 static final @NonNull JavaTypeName DEPRECATED = JavaTypeName.create(Deprecated.class);
45 * {@code java.lang.Override} as a JavaTypeName.
47 static final @NonNull JavaTypeName OVERRIDE = JavaTypeName.create(Override.class);
50 * {@code java.lang.SuppressWarnings} as a JavaTypeName.
52 static final @NonNull JavaTypeName SUPPRESS_WARNINGS = JavaTypeName.create(SuppressWarnings.class);
55 * {@code java.util.Arrays} as a JavaTypeName.
57 static final @NonNull JavaTypeName JU_ARRAYS = JavaTypeName.create(Arrays.class);
59 * {@code java.util.List} as a JavaTypeName.
61 static final @NonNull JavaTypeName JU_LIST = JavaTypeName.create(List.class);
63 * {@code java.util.Map} as a JavaTypeName.
65 static final @NonNull JavaTypeName JU_MAP = JavaTypeName.create(Map.class);
67 * {@code java.util.Objects} as a JavaTypeName.
69 static final @NonNull JavaTypeName JU_OBJECTS = JavaTypeName.create(Objects.class);
71 * {@code java.util.regex.Pattern} as a JavaTypeName.
73 static final @NonNull JavaTypeName JUR_PATTERN = JavaTypeName.create(Pattern.class);
76 * {@code org.eclipse.jdt.annotation.NonNull} as a JavaTypeName.
78 static final @NonNull JavaTypeName NONNULL = JavaTypeName.create("org.eclipse.jdt.annotation", "NonNull");
80 * {@code org.eclipse.jdt.annotation.Nullable} as a JavaTypeName.
82 static final @NonNull JavaTypeName NULLABLE = JavaTypeName.create("org.eclipse.jdt.annotation", "Nullable");
85 * {@code org.opendaylight.yangtools.yang.binding.CodeHelpers} as a JavaTypeName.
87 static final @NonNull JavaTypeName CODEHELPERS = JavaTypeName.create(CodeHelpers.class);
89 private final AbstractJavaGeneratedType javaType;
90 private final GeneratedType type;
92 JavaFileTemplate(final @NonNull GeneratedType type) {
93 this(new TopLevelJavaGeneratedType(type), type);
96 JavaFileTemplate(final AbstractJavaGeneratedType javaType, final GeneratedType type) {
97 this.javaType = requireNonNull(javaType);
98 this.type = requireNonNull(type);
101 final AbstractJavaGeneratedType javaType() {
105 final GeneratedType type() {
109 final String generateImportBlock() {
110 verify(javaType instanceof TopLevelJavaGeneratedType);
111 return ((TopLevelJavaGeneratedType) javaType).imports().map(name -> "import " + name + ";\n")
112 .collect(Collectors.joining());
115 final @NonNull String importedJavadocName(final @NonNull Type intype) {
116 return importedName(intype instanceof ParameterizedType ? ((ParameterizedType) intype).getRawType() : intype);
119 final @NonNull String importedName(final @NonNull Type intype) {
120 return javaType.getReferenceString(intype);
123 final @NonNull String importedName(final @NonNull Type intype, final @NonNull String annotation) {
124 return javaType.getReferenceString(intype, annotation);
127 final @NonNull String importedName(final Class<?> cls) {
128 return importedName(Types.typeForClass(cls));
131 final @NonNull String importedName(final @NonNull JavaTypeName intype) {
132 return javaType.getReferenceString(intype);
135 final @NonNull String importedNonNull(final @NonNull Type intype) {
136 return importedName(intype, importedName(NONNULL));
139 final @NonNull String importedNullable(final @NonNull Type intype) {
140 return importedName(intype, importedName(NULLABLE));
143 // Exposed for BuilderTemplate
144 boolean isLocalInnerClass(final JavaTypeName name) {
145 final Optional<JavaTypeName> optEnc = name.immediatelyEnclosingClass();
146 return optEnc.isPresent() && type.getIdentifier().equals(optEnc.get());
149 final CharSequence generateInnerClass(final GeneratedType innerClass) {
150 if (!(innerClass instanceof GeneratedTransferObject)) {
154 final GeneratedTransferObject gto = (GeneratedTransferObject) innerClass;
155 final NestedJavaGeneratedType innerJavaType = javaType.getEnclosedType(innerClass.getIdentifier());
156 return gto.isUnionType() ? new UnionTemplate(innerJavaType, gto).generateAsInnerClass()
157 : new ClassTemplate(innerJavaType, gto).generateAsInnerClass();
161 * Return imported name of java.util class, whose hashCode/equals methods we want to invoke on the property. Returns
162 * {@link Arrays} if the property is an array, {@link Objects} otherwise.
164 * @param property Generated property
165 * @return Imported class name
167 final String importedUtilClass(final GeneratedProperty property) {
168 return importedName(property.getReturnType().getName().indexOf('[') != -1 ? JU_ARRAYS : JU_OBJECTS);
171 static final Restrictions restrictionsForSetter(final Type actualType) {
172 return actualType instanceof GeneratedType ? null : getRestrictions(actualType);
175 static final Restrictions getRestrictions(final Type type) {
176 if (type instanceof ConcreteType) {
177 return ((ConcreteType) type).getRestrictions();
179 if (type instanceof GeneratedTransferObject) {
180 return ((GeneratedTransferObject) type).getRestrictions();