/** Generates a manifest file to be included in the .hpi file */
  protected void generateManifest(MavenArchiveConfiguration archive, File manifestFile)
      throws MojoExecutionException {
    // create directory if it doesn't exist yet
    if (!manifestFile.getParentFile().exists()) manifestFile.getParentFile().mkdirs();

    getLog().info("Generating " + manifestFile);

    MavenArchiver ma = new MavenArchiver();
    ma.setOutputFile(manifestFile);

    PrintWriter printWriter = null;
    try {
      Manifest mf = ma.getManifest(project, archive.getManifest());
      Section mainSection = mf.getMainSection();
      setAttributes(mainSection);

      printWriter =
          new PrintWriter(new OutputStreamWriter(new FileOutputStream(manifestFile), "UTF-8"));
      mf.write(printWriter);
    } catch (ManifestException e) {
      throw new MojoExecutionException("Error preparing the manifest: " + e.getMessage(), e);
    } catch (DependencyResolutionRequiredException e) {
      throw new MojoExecutionException("Error preparing the manifest: " + e.getMessage(), e);
    } catch (IOException e) {
      throw new MojoExecutionException("Error preparing the manifest: " + e.getMessage(), e);
    } finally {
      IOUtil.close(printWriter);
    }
  }
  public void execute() throws MojoExecutionException, MojoFailureException {
    if (this.skip) {
      getLog().info("skip execution");
      return;
    }
    // project.addAttachedArtifact(  );
    File warExecFile = new File(buildDirectory, finalName);
    if (warExecFile.exists()) {
      warExecFile.delete();
    }

    File execWarJar = new File(buildDirectory, finalName);

    FileOutputStream execWarJarOutputStream = null;
    ArchiveOutputStream os = null;
    File tmpPropertiesFile = null;
    File tmpManifestFile = null;
    FileOutputStream tmpPropertiesFileOutputStream = null;
    PrintWriter tmpManifestWriter = null;

    try {

      tmpPropertiesFile = new File(buildDirectory, "war-exec.properties");
      if (tmpPropertiesFile.exists()) {
        tmpPropertiesFile.delete();
      }
      tmpPropertiesFile.getParentFile().mkdirs();

      tmpManifestFile = new File(buildDirectory, "war-exec.manifest");
      if (tmpManifestFile.exists()) {
        tmpManifestFile.delete();
      }
      tmpPropertiesFileOutputStream = new FileOutputStream(tmpPropertiesFile);
      execWarJar.getParentFile().mkdirs();
      execWarJar.createNewFile();
      execWarJarOutputStream = new FileOutputStream(execWarJar);

      tmpManifestWriter = new PrintWriter(tmpManifestFile);

      // store :
      // * wars in the root: foo.war
      // * tomcat jars
      // * file tomcat.standalone.properties with possible values :
      //   * useServerXml=true/false to use directly the one provided
      //   * enableNaming=true/false
      //   * wars=foo.war|contextpath;bar.war  ( |contextpath is optionnal if empty use the war name
      // )
      //   * accessLogValveFormat=
      //   * connectorhttpProtocol: HTTP/1.1 or org.apache.coyote.http11.Http11NioProtocol
      // * optionnal: conf/ with usual tomcat configuration files
      // * MANIFEST with Main-Class

      Properties properties = new Properties();

      properties.put(
          Tomcat7Runner.ARCHIVE_GENERATION_TIMESTAMP_KEY,
          Long.toString(System.currentTimeMillis()));
      properties.put(Tomcat7Runner.ENABLE_NAMING_KEY, Boolean.toString(enableNaming));
      properties.put(Tomcat7Runner.ACCESS_LOG_VALVE_FORMAT_KEY, accessLogValveFormat);
      properties.put(Tomcat7Runner.HTTP_PROTOCOL_KEY, connectorHttpProtocol);

      os =
          new ArchiveStreamFactory()
              .createArchiveOutputStream(ArchiveStreamFactory.JAR, execWarJarOutputStream);

      if ("war".equals(project.getPackaging())) {

        os.putArchiveEntry(new JarArchiveEntry(StringUtils.removeStart(path, "/") + ".war"));
        IOUtils.copy(new FileInputStream(projectArtifact.getFile()), os);
        os.closeArchiveEntry();

        properties.put(Tomcat7Runner.WARS_KEY, StringUtils.removeStart(path, "/") + ".war|" + path);
      } else if (warRunDependencies != null && !warRunDependencies.isEmpty()) {
        for (WarRunDependency warRunDependency : warRunDependencies) {
          if (warRunDependency.dependency != null) {
            Dependency dependency = warRunDependency.dependency;
            Artifact artifact =
                artifactFactory.createArtifactWithClassifier(
                    dependency.getGroupId(),
                    dependency.getArtifactId(),
                    dependency.getVersion(),
                    dependency.getType(),
                    dependency.getClassifier());

            artifactResolver.resolve(artifact, this.remoteRepos, this.local);

            File warFileToBundle = new File(resolvePluginWorkDir(), artifact.getFile().getName());
            FileUtils.copyFile(artifact.getFile(), warFileToBundle);

            if (warRunDependency.contextXml != null) {
              warFileToBundle = addContextXmlToWar(warRunDependency.contextXml, warFileToBundle);
            }
            final String warFileName = artifact.getFile().getName();
            os.putArchiveEntry(new JarArchiveEntry(warFileName));
            IOUtils.copy(new FileInputStream(warFileToBundle), os);
            os.closeArchiveEntry();
            String propertyWarValue = properties.getProperty(Tomcat7Runner.WARS_KEY);
            String contextPath =
                StringUtils.isEmpty(warRunDependency.contextPath)
                    ? "/"
                    : warRunDependency.contextPath;
            if (propertyWarValue != null) {
              properties.put(
                  Tomcat7Runner.WARS_KEY, propertyWarValue + ";" + warFileName + "|" + contextPath);
            } else {
              properties.put(Tomcat7Runner.WARS_KEY, warFileName + "|" + contextPath);
            }
          }
        }
      }

      if (serverXml != null && serverXml.exists()) {
        os.putArchiveEntry(new JarArchiveEntry("conf/server.xml"));
        IOUtils.copy(new FileInputStream(serverXml), os);
        os.closeArchiveEntry();
        properties.put(Tomcat7Runner.USE_SERVER_XML_KEY, Boolean.TRUE.toString());
      } else {
        properties.put(Tomcat7Runner.USE_SERVER_XML_KEY, Boolean.FALSE.toString());
      }

      os.putArchiveEntry(new JarArchiveEntry("conf/web.xml"));
      IOUtils.copy(getClass().getResourceAsStream("/conf/web.xml"), os);
      os.closeArchiveEntry();

      properties.store(tmpPropertiesFileOutputStream, "created by Apache Tomcat Maven plugin");

      tmpPropertiesFileOutputStream.flush();
      tmpPropertiesFileOutputStream.close();

      os.putArchiveEntry(new JarArchiveEntry(Tomcat7RunnerCli.STAND_ALONE_PROPERTIES_FILENAME));
      IOUtils.copy(new FileInputStream(tmpPropertiesFile), os);
      os.closeArchiveEntry();

      // add tomcat classes
      for (Artifact pluginArtifact : pluginArtifacts) {
        if (StringUtils.equals("org.apache.tomcat", pluginArtifact.getGroupId())
            || StringUtils.equals("org.apache.tomcat.embed", pluginArtifact.getGroupId())
            || StringUtils.equals("org.eclipse.jdt.core.compiler", pluginArtifact.getGroupId())
            || StringUtils.equals("commons-cli", pluginArtifact.getArtifactId())
            || StringUtils.equals("tomcat7-war-runner", pluginArtifact.getArtifactId())) {
          JarFile jarFile = new JarFile(pluginArtifact.getFile());
          extractJarToArchive(jarFile, os);
        }
      }

      // add extra dependencies
      if (extraDependencies != null && !extraDependencies.isEmpty()) {
        for (Dependency dependency : extraDependencies) {
          // String groupId, String artifactId, String version, String scope, String type
          Artifact artifact =
              artifactFactory.createArtifact(
                  dependency.getGroupId(),
                  dependency.getArtifactId(),
                  dependency.getVersion(),
                  dependency.getScope(),
                  dependency.getType());

          artifactResolver.resolve(artifact, this.remoteRepos, this.local);
          JarFile jarFile = new JarFile(artifact.getFile());
          extractJarToArchive(jarFile, os);
        }
      }

      Manifest manifest = new Manifest();

      Manifest.Attribute mainClassAtt = new Manifest.Attribute();
      mainClassAtt.setName("Main-Class");
      mainClassAtt.setValue(mainClass);
      manifest.addConfiguredAttribute(mainClassAtt);

      manifest.write(tmpManifestWriter);
      tmpManifestWriter.flush();
      tmpManifestWriter.close();

      os.putArchiveEntry(new JarArchiveEntry("META-INF/MANIFEST.MF"));
      IOUtils.copy(new FileInputStream(tmpManifestFile), os);
      os.closeArchiveEntry();

      if (attachArtifact) {
        // MavenProject project, String artifactType, String artifactClassifier, File artifactFile
        projectHelper.attachArtifact(
            project, attachArtifactClassifierType, attachArtifactClassifier, execWarJar);
      }

      if (extraResources != null) {
        for (ExtraResource extraResource : extraResources) {

          DirectoryScanner directoryScanner = new DirectoryScanner();
          directoryScanner.setBasedir(extraResource.getDirectory());
          directoryScanner.addDefaultExcludes();
          directoryScanner.setExcludes(toStringArray(extraResource.getExcludes()));
          directoryScanner.setIncludes(toStringArray(extraResource.getIncludes()));
          directoryScanner.scan();
          for (String includeFile : directoryScanner.getIncludedFiles()) {
            getLog().debug("include file:" + includeFile);
            os.putArchiveEntry(new JarArchiveEntry(includeFile));
            IOUtils.copy(
                new FileInputStream(new File(extraResource.getDirectory(), includeFile)), os);
            os.closeArchiveEntry();
          }
        }
      }

      if (tomcatConfigurationFilesDirectory != null && tomcatConfigurationFilesDirectory.exists()) {
        // Because its the tomcat default dir for configs
        String aConfigOutputDir = "conf/";
        copyDirectoryContentIntoArchive(tomcatConfigurationFilesDirectory, aConfigOutputDir, os);
      }

    } catch (ManifestException e) {
      throw new MojoExecutionException(e.getMessage(), e);
    } catch (IOException e) {
      throw new MojoExecutionException(e.getMessage(), e);
    } catch (ArchiveException e) {
      throw new MojoExecutionException(e.getMessage(), e);
    } catch (ArtifactNotFoundException e) {
      throw new MojoExecutionException(e.getMessage(), e);
    } catch (ArtifactResolutionException e) {
      throw new MojoExecutionException(e.getMessage(), e);
    } finally {
      IOUtils.closeQuietly(os);
      IOUtils.closeQuietly(tmpManifestWriter);
      IOUtils.closeQuietly(execWarJarOutputStream);
      IOUtils.closeQuietly(tmpPropertiesFileOutputStream);
    }
  }