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/*
 * SonarQube
 * Copyright (C) 2009-2018 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.sonar.scanner.cpd;

import org.apache.commons.lang.StringUtils;
import org.sonar.api.CoreProperties;
import org.sonar.api.batch.fs.internal.InputModuleHierarchy;
import org.sonar.api.config.Configuration;
import org.sonar.duplications.block.BlockChunker;

public class CpdSettings {
  private final Configuration settings;
  private final String branch;

  public CpdSettings(Configuration settings, InputModuleHierarchy hierarchy) {
    this.settings = settings;
    this.branch = hierarchy.root().getBranch();
  }

  public boolean isCrossProjectDuplicationEnabled() {
    return settings.getBoolean(CoreProperties.CPD_CROSS_PROJECT).orElse(false)
      // No cross project duplication for branches
      && StringUtils.isBlank(branch);
  }

  /**
   * Not applicable to Java, as the {@link BlockChunker} that it uses does not record start and end units of each block. 
   * Also, it uses statements instead of tokens. 
   * @param languageKey
   * @return
   */
  int getMinimumTokens(String languageKey) {
    return settings.getInt("sonar.cpd." + languageKey + ".minimumTokens").orElse(100);
  }
}