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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.google.common.collect.Lists; |
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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 com.hltech.vaunt.validator.schema.SchemaValidator; |
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import java.util.List; |
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import java.util.stream.Collectors; |
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public class VauntValidator { |
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private static final String MISSING_ENDPOINT = "Missing endpoint required by consumer"; |
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private static final String MISSING_MESSAGE_WITH_ID = "Missing message with given id required by consumer"; |
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private static final String MULTIPLE_MATCH = "More than one message with the same id for given endpoint"; |
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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(Contract consumerContract, |
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List<Contract> providerContracts) { |
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List<Contract> endpointMatchingContracts = providerContracts.stream() |
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.filter(providerContract -> isEndpointMatching(consumerContract, providerContract)) |
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.collect(Collectors.toList()); |
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if (endpointMatchingContracts.isEmpty()) { |
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return ValidationResult.failure( |
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consumerContract.toString(), Lists.newArrayList(MISSING_ENDPOINT)); |
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} |
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List<Contract> idMatchingContracts = endpointMatchingContracts.stream() |
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.filter(providerContract -> isIdMatching(consumerContract.getMessage(), providerContract.getMessage())) |
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.collect(Collectors.toList()); |
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if (idMatchingContracts.isEmpty()) { |
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return ValidationResult.failure( |
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consumerContract.toString(), |
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Lists.newArrayList(MISSING_MESSAGE_WITH_ID)); |
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} |
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if (idMatchingContracts.size() > 1) { |
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return ValidationResult.failure( |
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consumerContract.toString(), |
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Lists.newArrayList(MULTIPLE_MATCH)); |
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} |
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List<String> validationErrors = |
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validateSchema(consumerContract.getMessage(), idMatchingContracts.get(0).getMessage()); |
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return validationErrors.size() == 0 |
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? ValidationResult.success(consumerContract.toString()) |
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: ValidationResult.failure(consumerContract.toString(), validationErrors); |
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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 isIdMatching(JsonSchema consumerBody, JsonSchema providerBody) { |
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return consumerBody.getId().equals(providerBody.getId()); |
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} |
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private List<String> validateSchema(JsonSchema consumerBody, JsonSchema providerBody) { |
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return SchemaValidator.validate(consumerBody, providerBody); |
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} |
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} |
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HLTech /
vaunt
