package org.apache.maven.plugin.checkstyle;

 /*

  * 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.

  */

 import com.puppycrawl.tools.checkstyle.api.AuditEvent;

 import com.puppycrawl.tools.checkstyle.api.AuditListener;

 import com.puppycrawl.tools.checkstyle.api.AutomaticBean;

 import com.puppycrawl.tools.checkstyle.api.Configuration;

 import com.puppycrawl.tools.checkstyle.api.SeverityLevel;

 import org.codehaus.plexus.util.StringUtils;

 import java.io.File;

 import java.util.ArrayList;

 import java.util.List;

 /**

  * Listener in charge of receiving events from the Checker.

  *

  * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>

  * @author <a href="mailto:vincent.siveton@gmail.com">Vincent Siveton</a>

  * @version $Id$

  */

 public class CheckstyleReportListener

     extends AutomaticBean

     implements AuditListener

 {

     private List<File> sourceDirectories;

     private CheckstyleResults results;

     private String currentFile;

     private List<AuditEvent> events;

     private SeverityLevel severityLevel;

     private Configuration checkstyleConfiguration;

     /**

      * @param sourceDirectory assume that is <code>sourceDirectory</code> is a not null directory and exists

      */

     public CheckstyleReportListener( File sourceDirectory )

     {

         this.sourceDirectories = new ArrayList<File>();

         this.sourceDirectories.add( sourceDirectory );

     }

     /**

      * @param sourceDirectory assume that is <code>sourceDirectory</code> is a not null directory and exists

      * @param configuration checkstyle configuration

      * @since 2.5

      */

     public CheckstyleReportListener( File sourceDirectory, Configuration configuration )

     {

         this.sourceDirectories = new ArrayList<File>();

         this.sourceDirectories.add( sourceDirectory );

         this.checkstyleConfiguration = configuration;

     }

     /**

      * @param sourceDirectory assume that is <code>sourceDirectory</code> is a not null directory and exists

      */

     public void addSourceDirectory( File sourceDirectory )

     {

         this.sourceDirectories.add( sourceDirectory );

     }

     /**

      * @param severityLevel

      */

     public void setSeverityLevelFilter( SeverityLevel severityLevel )

     {

         this.severityLevel = severityLevel;

     }

     /**

      * @return

      */

     public SeverityLevel getSeverityLevelFilter()

     {

         return severityLevel;

     }

     /** {@inheritDoc} */

     public void auditStarted( AuditEvent event )

     {

         setResults( new CheckstyleResults() );

     }

     /** {@inheritDoc} */

     public void auditFinished( AuditEvent event )

     {

         //do nothing

     }

     /** {@inheritDoc} */

     public void fileStarted( AuditEvent event )

     {

         for ( File sourceDirectory : sourceDirectories )

         {

             currentFile = StringUtils.substring( event.getFileName(), sourceDirectory.getPath().length() + 1 );

             currentFile = StringUtils.replace( currentFile, "\\", "/" );

             events = getResults().getFileViolations( currentFile );

         }

         if ( events == null )

         {

             events = new ArrayList<AuditEvent>();

         }

     }

     /** {@inheritDoc} */

     public void fileFinished( AuditEvent event )

     {

         getResults().setFileViolations( currentFile, events );

         currentFile = null;

     }

     /** {@inheritDoc} */

     public void addError( AuditEvent event )

     {

         if ( SeverityLevel.IGNORE.equals( event.getSeverityLevel() ) )

         {

             return;

         }

         if ( severityLevel == null || severityLevel.equals( event.getSeverityLevel() ) )

         {

             events.add( event );

         }

     }

     /** {@inheritDoc} */

     public void addException( AuditEvent event, Throwable throwable )

     {

         //Do Nothing

     }

     /**

      * @return

      */

     public CheckstyleResults getResults()

     {

         results.setConfiguration( checkstyleConfiguration );

         return results;

     }

     /**

      * @param results

      */

     public void setResults( CheckstyleResults results )

     {

         this.results = results;

     }

     /**

      * @since 2.5

      */

     public Configuration getCheckstyleConfiguration()

     {

         return checkstyleConfiguration;

     }

     /**

      * @since 2.5

      */

     public void setCheckstyleConfiguration( Configuration checkstyleConfiguration )

     {

         this.checkstyleConfiguration = checkstyleConfiguration;

     }

 }