content: /*******************************************************************************
   * Copyright (c) 2009, 2019 Mountainminds GmbH & Co. KG and Contributors
   * All rights reserved. This program and the accompanying materials
   * are made available under the terms of the Eclipse Public License v1.0
   * which accompanies this distribution, and is available at
   * http://www.eclipse.org/legal/epl-v10.html
   *
   * Contributors:
   *    Marc R. Hoffmann - initial API and implementation
   *    
   *******************************************************************************/
  package org.jacoco.report.check;
  
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.List;
  
  import org.jacoco.core.analysis.IBundleCoverage;
  import org.jacoco.core.data.ExecutionData;
  import org.jacoco.core.data.SessionInfo;
  import org.jacoco.report.ILanguageNames;
  import org.jacoco.report.IReportGroupVisitor;
  import org.jacoco.report.IReportVisitor;
  import org.jacoco.report.ISourceFileLocator;
  import org.jacoco.report.JavaNames;
  
  /**
   * Formatter which checks a set of given rules and reports violations to a
   * {@link IViolationsOutput} instance.
   */
  public class RulesChecker {
  
  	private List<Rule> rules;
  	private ILanguageNames languageNames;
  
  	/**
  	 * New formatter instance.
  	 */
  	public RulesChecker() {
  		this.rules = new ArrayList<Rule>();
  		this.setLanguageNames(new JavaNames());
  	}
  
  	/**
  	 * Sets the rules to check by this formatter.
  	 * 
  	 * @param rules
  	 *            rules to check
  	 */
  	public void setRules(final List<Rule> rules) {
  		this.rules = rules;
  	}
  
  	/**
  	 * Sets the implementation for language name display for message formatting.
  	 * Java language names are defined by default.
  	 * 
  	 * @param languageNames
  	 *            converter for language specific names
  	 */
  	public void setLanguageNames(final ILanguageNames languageNames) {
  		this.languageNames = languageNames;
  	}
  
  	/**
  	 * Creates a new visitor to process the configured checks.
  	 * 
  	 * @param output
  	 *            call-back to report violations to
  	 * @return visitor to emit the report data to
  	 */
  	public IReportVisitor createVisitor(final IViolationsOutput output) {
  		final BundleChecker bundleChecker = new BundleChecker(rules,
  				languageNames, output);
  		return new IReportVisitor() {
  
  			public IReportGroupVisitor visitGroup(final String name)
  					throws IOException {
  				return this;
  			}
  
  			public void visitBundle(final IBundleCoverage bundle,
  					final ISourceFileLocator locator) throws IOException {
  				bundleChecker.checkBundle(bundle);
  			}
  
  			public void visitInfo(final List<SessionInfo> sessionInfos,
  					final Collection<ExecutionData> executionData)
  					throws IOException {
  			}
  
  			public void visitEnd() throws IOException {
  			}
  		};
  	}
  
  }
  