code: /**
   * This file is part of Eclipse Steady.
   *
   * Licensed 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.
   *
   * SPDX-License-Identifier: Apache-2.0
   * SPDX-FileCopyrightText: Copyright (c) 2018-2020 SAP SE or an SAP affiliate company and Eclipse Steady contributors
   */
  package org.eclipse.steady.java.gradle;
  
  import org.gradle.api.GradleException;
  import org.gradle.api.Project;
  import org.gradle.api.logging.Logger;
  
  import static org.eclipse.steady.java.gradle.VulasPluginCommon.*;
  
  import java.util.HashMap;
  import java.util.Map;
  
  public class GradleProjectUtilities {
  
    private static final Map<String, ProjectOutputTypes> knownPlugins;
  
    static {
      knownPlugins = new HashMap<>();
      knownPlugins.put("java", ProjectOutputTypes.JAR);
      knownPlugins.put("com.android.library", ProjectOutputTypes.AAR);
      knownPlugins.put("com.android.application", ProjectOutputTypes.APK);
    }
  
    protected static String getMandatoryProjectProperty(
        Project project, GradleGavProperty property, Logger logger) {
  
      final String propertyName = property.name();
  
      logger.debug("Looking for property [{}] in project", propertyName);
  
      String propertyValue = null;
  
      if (project.hasProperty(propertyName)) {
        propertyValue = project.getProperties().get(propertyName).toString();
      }
  
      if (propertyValue == null || propertyValue.isEmpty() || propertyValue.equals("undefined")) {
        logger.error("Property [{}] is not defined, please define it!", propertyName);
        throw new GradleException();
      }
  
      logger.debug("Property found: {}={}", propertyName, propertyValue);
  
      return propertyValue;
    }
  
    protected static ProjectOutputTypes determineProjectOutputType(Project project, Logger logger) {
  
      ProjectOutputTypes projectOutputType = null;
  
      for (String kp : knownPlugins.keySet()) {
        if (project.getPlugins().hasPlugin(kp)) {
          logger.quiet("Found plugin: " + kp);
          projectOutputType = knownPlugins.get(kp);
          break;
        }
      }
  
      if (projectOutputType != null) {
        logger.quiet("Project type determined: {}", projectOutputType.toString());
      }
  
      return projectOutputType;
    }
  
    protected static boolean hasKnownProjectOutputType(Project project, Logger logger) {
      return determineProjectOutputType(project, logger) != null;
    }
  }
  