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A web service test double for all occasions - standalone edition

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/*
 * Copyright (C) 2017-2023 Thomas Akehurst
 *
 * 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 com.github.tomakehurst.wiremock.matching;

import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import com.google.common.base.Preconditions;
import java.util.Objects;

@JsonDeserialize(using = ContentPatternDeserialiser.class)
public abstract class ContentPattern implements NamedValueMatcher {

  protected final T expectedValue;

  public ContentPattern(T expectedValue) {
    if (!isNullValuePermitted()) {
      Preconditions.checkNotNull(
          expectedValue, "'" + getName() + "' expected value cannot be null");
    }
    this.expectedValue = expectedValue;
  }

  @JsonIgnore
  public T getValue() {
    return expectedValue;
  }

  protected boolean isNullValuePermitted() {
    return false;
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;

    ContentPattern that = (ContentPattern) o;

    return Objects.equals(expectedValue, that.expectedValue);
  }

  @Override
  public int hashCode() {
    return expectedValue != null ? expectedValue.hashCode() : 0;
  }
}