content: /*
   *  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
   *
   *      https://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.ivy.core.check;
  
  import java.io.IOException;
  import java.net.URL;
  import java.text.ParseException;
  import java.util.Arrays;
  import java.util.HashSet;
  import java.util.Set;
  
  import org.apache.ivy.core.module.descriptor.Artifact;
  import org.apache.ivy.core.module.descriptor.DependencyDescriptor;
  import org.apache.ivy.core.module.descriptor.ModuleDescriptor;
  import org.apache.ivy.core.resolve.ResolveData;
  import org.apache.ivy.core.resolve.ResolveEngine;
  import org.apache.ivy.core.resolve.ResolveOptions;
  import org.apache.ivy.core.resolve.ResolvedModuleRevision;
  import org.apache.ivy.plugins.parser.ModuleDescriptorParserRegistry;
  import org.apache.ivy.plugins.resolver.DependencyResolver;
  import org.apache.ivy.util.Message;
  
  public class CheckEngine {
      private CheckEngineSettings settings;
  
      private ResolveEngine resolveEngine;
  
      public CheckEngine(CheckEngineSettings settings, ResolveEngine resolveEngine) {
          this.settings = settings;
          this.resolveEngine = resolveEngine;
      }
  
      /**
       * Checks the given ivy file using current settings to see if all dependencies are available,
       * with good confs. If a resolver name is given, it also checks that the declared publications
       * are available in the corresponding resolver. Note that the check is not performed
       * recursively, i.e. if a dependency has itself dependencies badly described or not available,
       * this check will not discover it.
       *
       * @param ivyFile URL
       * @param resolvername String
       * @return boolean
       */
      public boolean check(URL ivyFile, String resolvername) {
          try {
              boolean result = true;
              // parse ivy file
              ModuleDescriptor md = ModuleDescriptorParserRegistry.getInstance().parseDescriptor(
                  settings, ivyFile, settings.doValidate());
  
              // check publications if possible
              if (resolvername != null) {
                  DependencyResolver resolver = settings.getResolver(resolvername);
                  Set<Artifact> artifacts = new HashSet<>();
                  for (String conf : md.getConfigurationsNames()) {
                      artifacts.addAll(Arrays.asList(md.getArtifacts(conf)));
                  }
                  for (Artifact artifact : artifacts) {
                      if (!resolver.exists(artifact)) {
                          Message.info("declared publication not found: " + artifact);
                          result = false;
                      }
                  }
              }
  
              // check dependencies
              ResolveData data = new ResolveData(resolveEngine, new ResolveOptions());
              for (DependencyDescriptor dd : md.getDependencies()) {
                  // check master confs
                  for (String masterConf : dd.getModuleConfigurations()) {
                      if (!"*".equals(masterConf.trim()) && md.getConfiguration(masterConf) == null) {
                          Message.info("dependency required in non existing conf for " + ivyFile
                                  + " \n\tin " + dd + ": " + masterConf);
                          result = false;
                      }
                  }
                  // resolve
                  DependencyResolver resolver = settings.getResolver(dd.getDependencyRevisionId());
                  ResolvedModuleRevision rmr = resolver.getDependency(dd, data);
                  if (rmr == null) {
                      Message.info("dependency not found in " + ivyFile + ":\n\t" + dd);
                      result = false;
                  } else {
                      for (String depConf : dd.getDependencyConfigurations(md.getConfigurationsNames())) {
                          if (!Arrays.asList(rmr.getDescriptor().getConfigurationsNames())
                                  .contains(depConf)) {
                              Message.info("dependency configuration is missing for " + ivyFile
                                      + "\n\tin " + dd + ": " + depConf);
                              result = false;
                          }
                          for (Artifact art : rmr.getDescriptor().getArtifacts(depConf)) {
                              if (!resolver.exists(art)) {
                                  Message.info("dependency artifact is missing for " + ivyFile
                                          + "\n\t in " + dd + ": " + art);
                                  result = false;
                              }
                          }
                      }
                  }
              }
              return result;
          } catch (ParseException e) {
              Message.info("parse problem on " + ivyFile, e);
              return false;
          } catch (IOException e) {
              Message.info("io problem on " + ivyFile, e);
              return false;
          } catch (Exception e) {
              Message.info("problem on " + ivyFile, e);
              return false;
          }
      }
  
  }
  