com.cloudera.csd.validation.components.ServiceDescriptorValidatorImpl.java Source code

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Here is the source code for com.cloudera.csd.validation.components.ServiceDescriptorValidatorImpl.java

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// Licensed to Cloudera, Inc. under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  Cloudera, Inc. licenses this file
// to you 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 com.cloudera.csd.validation.components;

import com.cloudera.csd.descriptors.ServiceDescriptor;
import com.cloudera.csd.validation.constraints.ServiceDependencyValidationGroup;
import com.cloudera.csd.validation.references.ReferenceValidator;
import com.cloudera.validation.DescriptorValidator;
import com.cloudera.validation.DescriptorValidatorImpl;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Sets;

import java.util.Set;

import javax.validation.ConstraintViolation;
import javax.validation.Validator;

/**
 * A class that implements the DescriptorValidator interface
 * for ServiceDescriptor objects.
 */
public class ServiceDescriptorValidatorImpl extends DescriptorValidatorImpl<ServiceDescriptor>
        implements DescriptorValidator<ServiceDescriptor> {

    private final Validator validator;
    private final ReferenceValidator refValidator;
    private final boolean enforceDependencyCheck;
    private Set<String> dependencyViolationStringSet;

    public ServiceDescriptorValidatorImpl(Validator validator, ReferenceValidator refValidator,
            boolean enforceDependencyCheck) {
        super(validator, "service");
        this.validator = validator;
        this.refValidator = refValidator;
        this.enforceDependencyCheck = enforceDependencyCheck;
        this.dependencyViolationStringSet = Sets.newHashSet();
    }

    @VisibleForTesting
    public Set<ConstraintViolation<ServiceDescriptor>> getViolations(ServiceDescriptor descriptor) {
        Set<ConstraintViolation<ServiceDescriptor>> violations = validator.validate(descriptor);
        if (enforceDependencyCheck) {
            Set<ConstraintViolation<ServiceDescriptor>> dependencyViolations = validator.validate(descriptor,
                    ServiceDependencyValidationGroup.class);
            for (ConstraintViolation<ServiceDescriptor> violation : dependencyViolations) {
                String message = violation.getMessage();
                String[] propertyPathSections = violation.getPropertyPath().toString().split("\\.");
                dependencyViolationStringSet.add(
                        String.format("%s %s", propertyPathSections[propertyPathSections.length - 1], message));
            }
        }

        if (!violations.isEmpty()) {
            return violations;
        }
        return refValidator.validate(descriptor);
    }

    @Override
    public Set<String> validate(ServiceDescriptor descriptor) {
        Set<ConstraintViolation<ServiceDescriptor>> constraintViolations;
        constraintViolations = getViolations(descriptor);

        ImmutableSet.Builder<String> violations = ImmutableSet.builder();
        for (ConstraintViolation<ServiceDescriptor> violation : constraintViolations) {
            String message = violation.getMessage();
            String relativePath = violation.getPropertyPath().toString();
            violations.add(String.format("%s.%s %s", "service", relativePath, message));
        }
        violations.addAll(dependencyViolationStringSet);
        dependencyViolationStringSet.clear();
        return violations.build();
    }
}