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package com.hltech.vaunt.validator; |
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import com.fasterxml.jackson.module.jsonSchema.JsonSchema; |
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import com.fasterxml.jackson.module.jsonSchema.types.ObjectSchema; |
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import com.fasterxml.jackson.module.jsonSchema.types.SimpleTypeSchema; |
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import com.fasterxml.jackson.module.jsonSchema.types.StringSchema; |
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import com.hltech.vaunt.core.domain.model.Contract; |
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import com.hltech.vaunt.core.domain.model.DestinationType; |
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import com.hltech.vaunt.core.domain.model.Service; |
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import java.util.List; |
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import java.util.Map; |
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import java.util.Optional; |
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import java.util.Set; |
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import java.util.stream.Collectors; |
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public class VauntValidator { |
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public List<ValidationResult> validate(Service consumer, Service provider) { |
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return consumer.getExpectations().getProviderNameToContracts().get(provider.getName()).stream() |
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.map(consumerContract -> validateWithMatchingProviderContract( |
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consumerContract, provider.getCapabilities().getContracts())) |
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.collect(Collectors.toList()); |
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} |
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public List<ValidationResult> validate(List<Contract> expectations, List<Contract> capabilities) { |
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return expectations.stream() |
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.map(consumerContract -> validateWithMatchingProviderContract(consumerContract, capabilities)) |
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.collect(Collectors.toList()); |
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} |
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private ValidationResult validateWithMatchingProviderContract( |
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Contract consumerContract, List<Contract> providerContracts) { |
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List<Contract> contracts = providerContracts.stream() |
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.filter(providerContract -> isEndpointMatching(consumerContract, providerContract)) |
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.collect(Collectors.toList()); |
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if (contracts.isEmpty()) { |
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return ValidationResult.failure(consumerContract, ValidationError.MISSING_ENDPOINT); |
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} |
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Optional<Contract> matchingProviderContract = contracts.stream() |
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.filter(providerContract -> isSchemaAndIdMatching( |
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consumerContract.getBody(), providerContract.getBody())) |
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.findFirst(); |
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return matchingProviderContract |
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.map(contract -> ValidationResult.success(consumerContract)) |
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.orElseGet(() -> ValidationResult.failure(consumerContract, contracts, ValidationError.WRONG_SCHEMA)); |
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} |
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private boolean isEndpointMatching(Contract firstContract, Contract secondContract) { |
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return isTmpQueueMatching(firstContract, secondContract) |
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|| (isDstTypeMatching(firstContract, secondContract) |
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&& isDstNameMatching(firstContract, secondContract)); |
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} |
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private boolean isTmpQueueMatching(Contract firstContract, Contract secondContract) { |
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return firstContract.getDestinationType() == DestinationType.TEMPORARY_QUEUE |
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&& isDstTypeMatching(firstContract, secondContract); |
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} |
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private boolean isDstTypeMatching(Contract firstContract, Contract secondContract) { |
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return firstContract.getDestinationType() == secondContract.getDestinationType(); |
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} |
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private boolean isDstNameMatching(Contract firstContract, Contract secondContract) { |
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return firstContract.getDestinationName().equals(secondContract.getDestinationName()); |
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} |
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private boolean isSchemaAndIdMatching(JsonSchema consumerBody, JsonSchema providerBody) { |
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if (!consumerBody.getId().equals(providerBody.getId())) { |
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return false; |
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} |
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return isSchemaMatching(consumerBody, providerBody); |
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} |
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private boolean isSchemaMatching(JsonSchema consumerBody, JsonSchema providerBody) { |
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if (isEnum(consumerBody) && isEnum(providerBody)) { |
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return compareEnumSchema(consumerBody, providerBody); |
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} |
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if (isObject(consumerBody) && isObject(providerBody)) { |
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return compareObjectSchema(consumerBody.asObjectSchema(), providerBody.asObjectSchema()); |
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} |
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return consumerBody.equals(providerBody); |
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} |
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private boolean isEnum(JsonSchema schema) { |
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return schema.asStringSchema() != null && schema.asStringSchema().getEnums().size() > 0; |
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} |
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private boolean isObject(JsonSchema schema) { |
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return schema.asObjectSchema() != null; |
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} |
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private boolean compareEnumSchema(JsonSchema consumerBody, JsonSchema providerBody) { |
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return compareStringSchemaPart(consumerBody.asStringSchema(), providerBody.asStringSchema()) |
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&& compareSimpleTypeSchemaPart(consumerBody.asSimpleTypeSchema(), providerBody.asSimpleTypeSchema()) |
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&& compareJsonSchemaPart(consumerBody, providerBody); |
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} |
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private boolean compareStringSchemaPart(StringSchema consumerBody, StringSchema providerBody) { |
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return equals(consumerBody.getMaxLength(), providerBody.getMaxLength()) |
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&& equals(consumerBody.getMinLength(), providerBody.getMinLength()) |
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&& equals(consumerBody.getPattern(), providerBody.getPattern()) |
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&& equals(consumerBody.getFormat(), providerBody.getFormat()) |
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&& compareEnum(consumerBody.getEnums(), providerBody.getEnums()); |
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} |
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private boolean compareSimpleTypeSchemaPart(SimpleTypeSchema consumerBody, SimpleTypeSchema providerBody) { |
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return equals(consumerBody.getDefault(), providerBody.getDefault()) |
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&& equals(consumerBody.getTitle(), providerBody.getTitle()) |
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&& equals(consumerBody.getPathStart(), providerBody.getPathStart()) |
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&& equals(consumerBody.getLinks(), providerBody.getLinks()); |
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} |
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private boolean compareJsonSchemaPart(JsonSchema consumerBody, JsonSchema providerBody) { |
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return equals(consumerBody.getId(), providerBody.getId()) |
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&& equals(consumerBody.getRequired(), providerBody.getRequired()) |
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&& equals(consumerBody.getReadonly(), providerBody.getReadonly()) |
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&& equals(consumerBody.get$ref(), providerBody.get$ref()) |
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&& equals(consumerBody.get$schema(), providerBody.get$schema()) |
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&& equals(consumerBody.getDisallow(), providerBody.getDisallow()) |
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&& equals(consumerBody.getExtends(), providerBody.getExtends()); |
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} |
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private boolean compareEnum(Set<String> consumerEnums, Set<String> providerEnums) { |
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return providerEnums.containsAll(consumerEnums); |
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} |
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private boolean compareObjectSchema(ObjectSchema consumerBody, ObjectSchema providerBody) { |
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return equals(consumerBody.getAdditionalProperties(), providerBody.getAdditionalProperties()) |
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&& equals(consumerBody.getDependencies(), providerBody.getDependencies()) |
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&& equals(consumerBody.getPatternProperties(), providerBody.getPatternProperties()) |
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&& compareObjectProperties(consumerBody.getProperties(), providerBody.getProperties()); |
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} |
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private boolean compareObjectProperties( |
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Map<String, JsonSchema> consumerProperties, Map<String, JsonSchema> providerProperties) { |
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return consumerProperties.keySet().equals(providerProperties.keySet()) |
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&& consumerProperties.keySet().stream() |
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.allMatch(key -> isSchemaMatching(consumerProperties.get(key), providerProperties.get(key))); |
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} |
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private boolean equals(Object object1, Object object2) { |
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if (object1 == null) { |
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return object2 == null; |
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} else { |
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return object1.equals(object2); |
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} |
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} |
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} |
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HLTech /
vaunt
