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package com.hltech.vaunt.validator.schema; |
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import com.fasterxml.jackson.module.jsonSchema.JsonSchema; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import java.util.List; |
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import java.util.Objects; |
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import java.util.Set; |
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import java.util.function.BiPredicate; |
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import java.util.stream.Collectors; |
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import java.util.stream.IntStream; |
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public abstract class JsonSchemaValidator { |
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static final String ERROR_FORMAT = "Schema with id %s has not matching %s - consumer: %s, provider: %s"; |
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static final String ERROR_FORMAT_SHORT = "Schema with id %s has not matching %s"; |
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public abstract Class<?> supportsSchemaType(); |
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public List<String> validate(JsonSchema consumerSchema, JsonSchema providerSchema) { |
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List<String> errors = new ArrayList<>(); |
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if (!equals(consumerSchema.get$ref(), providerSchema.get$ref())) { |
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errors.add(String.format(ERROR_FORMAT, |
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consumerSchema.getId(), |
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"$ref", |
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consumerSchema.get$ref(), |
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providerSchema.get$ref())); |
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} |
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if (!equals(consumerSchema.get$schema(), providerSchema.get$schema())) { |
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errors.add(String.format(ERROR_FORMAT, |
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consumerSchema.getId(), |
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"$schema", |
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consumerSchema.get$schema(), |
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providerSchema.get$schema())); |
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} |
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if (!arraysEquals(consumerSchema.getDisallow(), providerSchema.getDisallow(), Object::equals)) { |
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errors.add(String.format(ERROR_FORMAT, |
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consumerSchema.getId(), |
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"disallow", |
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jsonArrayToString(consumerSchema.getDisallow()), |
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jsonArrayToString(providerSchema.getDisallow()))); |
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} |
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if (!arraysEquals(consumerSchema.getExtends(), providerSchema.getExtends(), Object::equals)) { |
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errors.add(String.format(ERROR_FORMAT, |
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consumerSchema.getId(), |
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"extends", |
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jsonArrayToString(consumerSchema.getExtends()), |
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jsonArrayToString(providerSchema.getExtends()))); |
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} |
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if (isRequired(consumerSchema) && !isRequired(providerSchema)) { |
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errors.add(String.format(ERROR_FORMAT, |
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consumerSchema.getId(), |
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"required", |
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consumerSchema.getRequired(), |
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providerSchema.getRequired())); |
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} |
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if (!equals(consumerSchema.getReadonly(), providerSchema.getReadonly())) { |
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errors.add(String.format(ERROR_FORMAT, |
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consumerSchema.getId(), |
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"readonly", |
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consumerSchema.getReadonly(), |
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providerSchema.getReadonly())); |
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} |
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if (!equals(consumerSchema.getDescription(), providerSchema.getDescription())) { |
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errors.add(String.format(ERROR_FORMAT, |
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consumerSchema.getId(), |
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"description", |
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consumerSchema.getDescription(), |
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providerSchema.getDescription())); |
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} |
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return errors; |
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} |
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private boolean isRequired(JsonSchema schema) { |
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return schema.getRequired() != null && schema.getRequired(); |
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} |
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boolean equals(Object object1, Object object2) { |
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return Objects.equals(object1, object2); |
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} |
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<T> boolean arraysEquals(T[] array1, T[] array2, BiPredicate<T, T> checker) { |
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if (array1 == null) { |
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return array2 == null; |
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} |
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if (array2 == null) { |
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return false; |
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} |
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return array1.length == array2.length && IntStream.range(0, array1.length) |
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.allMatch(i -> checker.test(array1[i], array2[i])); |
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} |
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private String jsonArrayToString(JsonSchema[] array) { |
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String content = Arrays.stream(array) |
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.map(this::jsonToString) |
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.collect(Collectors.joining(", ")); |
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return "[" + content + "]"; |
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} |
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String jsonToString(JsonSchema object) { |
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return "JsonSchema(id=" + object.getId() + ")"; |
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} |
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boolean isEnumValid(Set<String> consumerEnums, Set<String> providerEnums) { |
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if (representsString(consumerEnums) && representsEnum(providerEnums)) { |
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return false; |
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} |
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if (representsEnum(consumerEnums) && representsEnum(providerEnums)) { |
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return providerEnums.containsAll(consumerEnums); |
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} |
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return true; |
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} |
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private boolean representsEnum(Set<String> enums) { |
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return enums.size() > 0; |
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} |
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private boolean representsString(Set<String> enums) { |
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return enums.size() == 0; |
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} |
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} |
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