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JsonSchema.java
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JsonSchema.java
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/*
* Copyright (C) 2015 Red Hat, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.fabric8.crd.generator.v1;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonNode;
import io.fabric8.crd.generator.AbstractJsonSchema;
import io.fabric8.kubernetes.api.model.apiextensions.v1.JSONSchemaProps;
import io.fabric8.kubernetes.api.model.apiextensions.v1.JSONSchemaPropsBuilder;
import io.fabric8.kubernetes.api.model.apiextensions.v1.ValidationRule;
import io.fabric8.kubernetes.api.model.apiextensions.v1.ValidationRuleBuilder;
import io.sundr.model.Property;
import io.sundr.model.TypeDef;
import io.sundr.model.TypeRef;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
import static io.fabric8.crd.generator.CRDGenerator.YAML_MAPPER;
public class JsonSchema extends AbstractJsonSchema<JSONSchemaProps, JSONSchemaPropsBuilder> {
private static final JsonSchema instance = new JsonSchema();
private static final JSONSchemaProps JSON_SCHEMA_INT_OR_STRING = new JSONSchemaPropsBuilder()
.withXKubernetesIntOrString(true)
.withAnyOf(
new JSONSchemaPropsBuilder().withType("integer").build(),
new JSONSchemaPropsBuilder().withType("string").build())
.build();
/**
* Creates the JSON schema for the particular {@link TypeDef}.
*
* @param definition The definition.
* @param ignore an optional list of property names to ignore
* @return The schema.
*/
public static JSONSchemaProps from(TypeDef definition, String... ignore) {
return instance.internalFrom(definition, ignore);
}
@Override
public JSONSchemaPropsBuilder newBuilder() {
return newBuilder("object");
}
@Override
public JSONSchemaPropsBuilder newBuilder(String type) {
final JSONSchemaPropsBuilder builder = new JSONSchemaPropsBuilder();
builder.withType(type);
return builder;
}
@Override
public void addProperty(Property property, JSONSchemaPropsBuilder builder,
JSONSchemaProps schema, SchemaPropsOptions options) {
if (schema != null) {
options.getDefault().ifPresent(s -> {
try {
schema.setDefault(YAML_MAPPER.readTree(s));
} catch (JsonProcessingException e) {
throw new IllegalArgumentException("Cannot parse default value: '" + s + "' as valid YAML.");
}
});
options.getMin().ifPresent(schema::setMinimum);
options.getMax().ifPresent(schema::setMaximum);
options.getFormat().ifPresent(schema::setFormat);
options.getPattern().ifPresent(schema::setPattern);
List<ValidationRule> validationRulesFromProperty = options.getValidationRules().stream()
.map(this::mapValidationRule)
.collect(Collectors.toList());
List<ValidationRule> resultingValidationRules = new ArrayList<>(schema.getXKubernetesValidations());
resultingValidationRules.addAll(validationRulesFromProperty);
if (!resultingValidationRules.isEmpty()) {
schema.setXKubernetesValidations(resultingValidationRules);
}
if (options.isNullable()) {
schema.setNullable(true);
}
if (options.isPreserveUnknownFields()) {
schema.setXKubernetesPreserveUnknownFields(true);
}
builder.addToProperties(property.getName(), schema);
}
}
@Override
public JSONSchemaProps build(JSONSchemaPropsBuilder builder, List<String> required,
List<KubernetesValidationRule> validationRules, boolean preserveUnknownFields) {
builder = builder.withRequired(required);
if (preserveUnknownFields) {
builder.withXKubernetesPreserveUnknownFields(preserveUnknownFields);
}
builder.addAllToXKubernetesValidations(mapValidationRules(validationRules));
return builder.build();
}
@Override
protected JSONSchemaProps arrayLikeProperty(JSONSchemaProps schema) {
return new JSONSchemaPropsBuilder()
.withType("array")
.withNewItems()
.withSchema(schema)
.and()
.build();
}
@Override
protected JSONSchemaProps mapLikeProperty(JSONSchemaProps schema) {
return new JSONSchemaPropsBuilder()
.withType("object")
.withNewAdditionalProperties()
.withSchema(schema)
.endAdditionalProperties()
.build();
}
@Override
protected JSONSchemaProps singleProperty(String typeName) {
return new JSONSchemaPropsBuilder().withType(typeName).build();
}
@Override
protected JSONSchemaProps mappedProperty(TypeRef ref) {
return JSON_SCHEMA_INT_OR_STRING;
}
@Override
protected JSONSchemaProps enumProperty(JsonNode... enumValues) {
return new JSONSchemaPropsBuilder().withType("string").withEnum(enumValues).build();
}
@Override
protected JSONSchemaProps addDescription(JSONSchemaProps schema, String description) {
return new JSONSchemaPropsBuilder(schema)
.withDescription(description)
.build();
}
private List<ValidationRule> mapValidationRules(List<KubernetesValidationRule> validationRules) {
return validationRules.stream()
.map(this::mapValidationRule)
.collect(Collectors.toList());
}
private ValidationRule mapValidationRule(KubernetesValidationRule validationRule) {
return new ValidationRuleBuilder()
.withRule(validationRule.getRule())
.withMessage(validationRule.getMessage())
.withMessageExpression(validationRule.getMessageExpression())
.withReason(validationRule.getReason())
.withFieldPath(validationRule.getFieldPath())
.withOptionalOldSelf(validationRule.getOptionalOldSelf())
.build();
}
}