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Implementation of the JSON Schema Core Draft v4 specification built with the org.json API

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/*
 * Copyright (C) 2011 Everit Kft. (http://www.everit.org)
 *
 * 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 org.everit.json.schema;

import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

/**
 * Enum schema validator.
 *
 */
public class EnumSchema extends Schema {

  /**
   * Builder class for {@link EnumSchema}.
   */
  public static class Builder extends Schema.Builder {

    private Set possibleValues = new HashSet<>();

    @Override
    public EnumSchema build() {
      return new EnumSchema(this);
    }

    public Builder possibleValue(final Object possibleValue) {
      possibleValues.add(possibleValue);
      return this;
    }

    public Builder possibleValues(final Set possibleValues) {
      this.possibleValues = possibleValues;
      return this;
    }
  }

  public static Builder builder() {
    return new Builder();
  }

  private final Set possibleValues;

  public EnumSchema(final Builder builder) {
    super(builder);
    possibleValues = Collections.unmodifiableSet(new HashSet<>(builder.possibleValues));
  }

  public Set getPossibleValues() {
    return possibleValues;
  }

  @Override
  public void validate(final Object subject) {
    possibleValues
        .stream()
        .filter(val -> ObjectComparator.deepEquals(val, subject))
        .findAny()
        .orElseThrow(
            () -> new ValidationException(this, String.format("%s is not a valid enum value",
                subject), "enum"));
  }

}
    

    

    
            
    
            







    
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