package org.apache.maven.surefire.report;
   
   /*
    * 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 java.util.ArrayList;
  import java.util.Collection;
  import java.util.Collections;
  import org.apache.maven.surefire.util.internal.StringUtils;
  
  /**
   * @author Kristian Rosenvold
   */
  public class RunStatistics
      extends TestSetStatistics
  {
      /**
       * Holds the source(s) that causes the error(s).
       */
      private final Sources errorSources = new Sources();
  
      /**
       * Holds the source(s) that causes the failure(s).
       */
      private final Sources failureSources = new Sources();
  
  
      public void addErrorSource( String errorSource, StackTraceWriter stackTraceWriter )
      {
          errorSources.addSource( errorSource, stackTraceWriter );
      }
  
      public void addFailureSource( String failureSource, StackTraceWriter stackTraceWriter )
      {
          failureSources.addSource( failureSource, stackTraceWriter );
      }
  
      public Collection getErrorSources()
      {
          return errorSources.getListOfSources();
      }
  
      public Collection getFailureSources()
      {
          return failureSources.getListOfSources();
      }
  
  
      private static class Sources
      {
          private final Collection listOfSources = new ArrayList();
  
          void addSource( String source )
          {
              synchronized ( listOfSources )
              {
                  listOfSources.add( source );
              }
          }
  
          void addSource( String source, StackTraceWriter stackTraceWriter )
          {
              String message = getMessageOfThrowable( stackTraceWriter );
              String extendedSource =
                  StringUtils.isBlank( message ) ? source : source + ": " + trimToSingleLine( message );
              addSource( extendedSource );
          }
  
          private String trimToSingleLine( String str )
          {
              int i = str.indexOf( "\n" );
              return i >= 0 ? str.substring( 0, i ) : str;
          }
  
          Collection getListOfSources()
          {
              synchronized ( listOfSources )
              {
                  return Collections.unmodifiableCollection( listOfSources );
              }
          }
  
          private String getMessageOfThrowable( StackTraceWriter stackTraceWriter )
         {
             //noinspection ThrowableResultOfMethodCallIgnored
             return stackTraceWriter != null ? getMessageOfThrowable( stackTraceWriter.getThrowable() ) : "";
         }
 
         private String getMessageOfThrowable( Throwable throwable )
         {
             return throwable != null ? throwable.getLocalizedMessage() : "";
         }
     }
 }