content: /*
   * Copyright 2021-2024 Aklivity Inc
   *
   * Licensed under the Aklivity Community License (the "License"); you may not use
   * this file except in compliance with the License.  You may obtain a copy of the
   * License at
   *
   *   https://www.aklivity.io/aklivity-community-license/
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   * WARRANTIES OF ANY KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations under the License.
   */
  package io.aklivity.zilla.runtime.binding.openapi.internal.model.resolver;
  
  import java.util.Map;
  import java.util.Set;
  import java.util.regex.Matcher;
  import java.util.regex.Pattern;
  
  import io.aklivity.zilla.runtime.binding.openapi.internal.model.AbstractOpenapiResolvable;
  
  public abstract class AbstractOpenapiResolver<T extends AbstractOpenapiResolvable>
  {
      private final Map<String, T> resolvables;
      private final Matcher matcher;
      private final Set<String> unresolved;
  
      public AbstractOpenapiResolver(
          Map<String, T> resolvables,
          Pattern pattern,
          Set<String> unresolved)
      {
          this.resolvables = resolvables;
          this.matcher = pattern.matcher("");
          this.unresolved = unresolved;
      }
  
      public final T resolve(
          T model)
      {
          final String key = resolveRef(model.ref);
          T candidate = key != null ? resolvables.getOrDefault(key, model) : model;
          if (candidate.ref != null)
          {
              unresolved.add(candidate.ref);
          }
          return candidate;
      }
  
      public T resolve(
          String key)
      {
          return resolvables.get(key);
      }
  
      public final String resolveRef(
          String ref)
      {
          return ref != null && matcher.reset(ref).matches() ? matcher.group(1) : null;
      }
  }
  