/*
    * 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.maven.plugins.pmd.exec;
  
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.InputStreamReader;
  import java.io.Reader;
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.maven.plugins.pmd.model.CpdErrorDetail;
  import org.apache.maven.plugins.pmd.model.Duplication;
  import org.apache.maven.plugins.pmd.model.io.xpp3.CpdXpp3Reader;
  import org.apache.maven.reporting.MavenReportException;
  
  /**
   * Provides access to the result of the CPD analysis.
   */
  public class CpdResult {
      private final List<Duplication> duplications = new ArrayList<>();
  
      public CpdResult(File report, String encoding) throws MavenReportException {
          loadResult(report, encoding);
      }
  
      public List<Duplication> getDuplications() {
          return duplications;
      }
  
      public boolean hasDuplications() {
          return !duplications.isEmpty();
      }
  
      private void loadResult(File report, String encoding) throws MavenReportException {
          try (Reader reader1 = new InputStreamReader(new FileInputStream(report), encoding)) {
              CpdXpp3Reader reader = new CpdXpp3Reader();
              CpdErrorDetail details = reader.read(reader1, false);
              duplications.addAll(details.getDuplications());
          } catch (Exception e) {
              throw new MavenReportException(e.getMessage(), e);
          }
      }
  }