content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF 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 org.apache.beam.sdk.runners;
  
  import org.apache.beam.sdk.annotations.Internal;
  import org.apache.beam.sdk.transforms.PTransform;
  
  /**
   * <b><i>For internal use only; no backwards-compatibility guarantees.</i></b>
   *
   * <p>Matches applications of {@link PTransform PTransforms}.
   */
  @Internal
  public interface PTransformMatcher {
    boolean matches(AppliedPTransform<?, ?, ?> application);
  
    /**
     * An {@link AppliedPTransform} matched by a {@link PTransformMatcher} will be replaced during
     * pipeline surgery, and is often expected to be gone in the new pipeline. For the {@link
     * AppliedPTransform} that is expected to remain in the pipeline after surgery, the corresponding
     * {@link PTransformMatcher} should override this method, such that it will not be matched during
     * the validation.
     */
    default boolean matchesDuringValidation(AppliedPTransform<?, ?, ?> application) {
      return matches(application);
    }
  
    default PTransformMatcher and(PTransformMatcher matcher) {
      return application -> this.matches(application) && matcher.matches(application);
    }
  
    default PTransformMatcher or(PTransformMatcher matcher) {
      return application -> this.matches(application) || matcher.matches(application);
    }
  }
  