/*
    * 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.
   */
  package org.apache.maven.surefire.common.junit48;
  
  import java.util.Map;
  
  import org.apache.maven.surefire.api.booter.ProviderParameterNames;
  import org.apache.maven.surefire.api.testset.TestListResolver;
  import org.apache.maven.surefire.common.junit4.JUnit4ProviderUtil;
  import org.apache.maven.surefire.group.match.GroupMatcher;
  import org.apache.maven.surefire.group.parse.GroupMatcherParser;
  import org.apache.maven.surefire.group.parse.ParseException;
  import org.junit.runner.Description;
  import org.junit.runner.manipulation.Filter;
  
  import static org.apache.maven.surefire.api.booter.ProviderParameterNames.TESTNG_EXCLUDEDGROUPS_PROP;
  import static org.apache.maven.surefire.api.booter.ProviderParameterNames.TESTNG_GROUPS_PROP;
  import static org.apache.maven.surefire.shared.utils.StringUtils.isNotBlank;
  
  /**
   * @author Todd Lipcon
   */
  public class FilterFactory {
      private final ClassLoader testClassLoader;
  
      public FilterFactory(ClassLoader testClassLoader) {
          this.testClassLoader = testClassLoader;
      }
  
      /**
       * @return {@code true} if non-blank
       * {@link ProviderParameterNames#TESTNG_GROUPS_PROP} and/or
       * {@link ProviderParameterNames#TESTNG_EXCLUDEDGROUPS_PROP} exists.
       */
      public boolean canCreateGroupFilter(Map<String, String> providerProperties) {
          String groups = providerProperties.get(TESTNG_GROUPS_PROP);
          String excludedGroups = providerProperties.get(TESTNG_EXCLUDEDGROUPS_PROP);
          return isNotBlank(groups) || isNotBlank(excludedGroups);
      }
  
      /**
       * Creates filter using he key
       * {@link ProviderParameterNames#TESTNG_GROUPS_PROP} and/or
       * {@link ProviderParameterNames#TESTNG_EXCLUDEDGROUPS_PROP}.
       */
      public Filter createGroupFilter(Map<String, String> providerProperties) {
          String groups = providerProperties.get(TESTNG_GROUPS_PROP);
  
          GroupMatcher included = null;
          if (isNotBlank(groups)) {
              try {
                  included = new GroupMatcherParser(groups).parse();
              } catch (ParseException e) {
                  throw new IllegalArgumentException(
                          "Invalid group expression: '" + groups + "'. Reason: " + e.getMessage(), e);
              }
          }
  
          String excludedGroups = providerProperties.get(TESTNG_EXCLUDEDGROUPS_PROP);
  
          GroupMatcher excluded = null;
          if (isNotBlank(excludedGroups)) {
              try {
                  excluded = new GroupMatcherParser(excludedGroups).parse();
              } catch (ParseException e) {
                  throw new IllegalArgumentException(
                          "Invalid group expression: '" + excludedGroups + "'. Reason: " + e.getMessage(), e);
              }
          }
  
          if (included != null && testClassLoader != null) {
              included.loadGroupClasses(testClassLoader);
          }
  
          if (excluded != null && testClassLoader != null) {
              excluded.loadGroupClasses(testClassLoader);
          }
  
          return new GroupMatcherCategoryFilter(included, excluded);
      }
  
      public Filter createMethodFilter(String requestedTestMethod) {
          return new MethodFilter(requestedTestMethod);
     }
 
     public Filter createMethodFilter(TestListResolver resolver) {
         return new MethodFilter(resolver);
     }
 
     public Filter createMatchAnyDescriptionFilter(Iterable<Description> descriptions) {
         return JUnit4ProviderUtil.createMatchAnyDescriptionFilter(descriptions);
     }
 
     public Filter and(Filter filter1, Filter filter2) {
         return new AndFilter(filter1, filter2);
     }
 }