package org.apache.maven.plugin.failsafe.util;
   
   /*
    * 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 org.apache.maven.surefire.shared.io.IOUtils;
  import org.apache.maven.surefire.api.suite.RunResult;
  import org.w3c.dom.Node;
  import org.xml.sax.InputSource;
  
  import javax.xml.xpath.XPath;
  import javax.xml.xpath.XPathFactory;
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.io.InputStreamReader;
  import java.io.Reader;
  import java.util.Locale;
  
  import static java.lang.Boolean.parseBoolean;
  import static java.lang.Integer.parseInt;
  import static java.lang.String.format;
  import static java.nio.charset.StandardCharsets.UTF_8;
  import static javax.xml.xpath.XPathConstants.NODE;
  import static org.apache.maven.surefire.shared.lang3.StringEscapeUtils.escapeXml10;
  import static org.apache.maven.surefire.shared.lang3.StringEscapeUtils.unescapeXml;
  import static org.apache.maven.surefire.shared.utils.StringUtils.isBlank;
  
  /**
   * @author <a href="mailto:tibordigana@apache.org">Tibor Digana (tibor17)</a>
   * @since 2.20
   */
  public final class FailsafeSummaryXmlUtils
  {
      private static final String FAILSAFE_SUMMARY_XML_SCHEMA_LOCATION =
              "https://maven.apache.org/surefire/maven-surefire-plugin/xsd/failsafe-summary.xsd";
  
      private static final String MESSAGE_NIL_ELEMENT =
              "<failureMessage xsi:nil=\"true\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"/>";
  
      private static final String MESSAGE_ELEMENT =
              "<failureMessage>%s</failureMessage>";
  
      private static final String FAILSAFE_SUMMARY_XML_TEMPLATE =
              "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
                      + "<failsafe-summary xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\""
                      + " xsi:noNamespaceSchemaLocation=\"" + FAILSAFE_SUMMARY_XML_SCHEMA_LOCATION + "\""
                      + " result=\"%s\" timeout=\"%s\">\n"
                      + "    <completed>%d</completed>\n"
                      + "    <errors>%d</errors>\n"
                      + "    <failures>%d</failures>\n"
                      + "    <skipped>%d</skipped>\n"
                      + "    %s\n"
                      + "</failsafe-summary>";
  
      private FailsafeSummaryXmlUtils()
      {
          throw new IllegalStateException( "No instantiable constructor." );
      }
  
      public static RunResult toRunResult( File failsafeSummaryXml ) throws Exception
      {
          XPathFactory xpathFactory = XPathFactory.newInstance();
          XPath xpath = xpathFactory.newXPath();
  
          try ( Reader reader = new InputStreamReader( new FileInputStream( failsafeSummaryXml ), UTF_8 ) )
          {
              Node root = ( Node ) xpath.evaluate( "/", new InputSource( reader ), NODE );
  
              String completed = xpath.evaluate( "/failsafe-summary/completed", root );
              String errors = xpath.evaluate( "/failsafe-summary/errors", root );
              String failures = xpath.evaluate( "/failsafe-summary/failures", root );
              String skipped = xpath.evaluate( "/failsafe-summary/skipped", root );
              String failureMessage = xpath.evaluate( "/failsafe-summary/failureMessage", root );
              String timeout = xpath.evaluate( "/failsafe-summary/@timeout", root );
  
              return new RunResult( parseInt( completed ), parseInt( errors ), parseInt( failures ), parseInt( skipped ),
                      isBlank( failureMessage ) ? null : unescapeXml( failureMessage ),
                      parseBoolean( timeout )
              );
          }
      }
 
     public static void fromRunResultToFile( RunResult fromRunResult, File toFailsafeSummaryXml )
             throws IOException
     {
         String failure = fromRunResult.getFailure();
         String msg = isBlank( failure ) ? MESSAGE_NIL_ELEMENT : format( MESSAGE_ELEMENT, escapeXml10( failure ) );
         String xml = format( Locale.ROOT, FAILSAFE_SUMMARY_XML_TEMPLATE,
                 fromRunResult.getFailsafeCode(),
                 String.valueOf( fromRunResult.isTimeout() ),
                 fromRunResult.getCompletedCount(),
                 fromRunResult.getErrors(),
                 fromRunResult.getFailures(),
                 fromRunResult.getSkipped(),
                 msg );
 
         try ( FileOutputStream os = new FileOutputStream( toFailsafeSummaryXml ) )
         {
             IOUtils.write( xml, os, UTF_8 );
         }
     }
 
     public static void writeSummary( RunResult mergedSummary, File mergedSummaryFile, boolean inProgress )
             throws Exception
     {
         if ( !mergedSummaryFile.getParentFile().isDirectory() )
         {
             //noinspection ResultOfMethodCallIgnored
             mergedSummaryFile.getParentFile().mkdirs();
         }
 
         if ( mergedSummaryFile.exists() && inProgress )
         {
             RunResult runResult = toRunResult( mergedSummaryFile );
             mergedSummary = mergedSummary.aggregate( runResult );
         }
 
         fromRunResultToFile( mergedSummary, mergedSummaryFile );
     }
 }