/*
    * 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.syncope.core.provisioning.java.propagation;
  
  import java.util.Collection;
  import java.util.stream.Collectors;
  import org.apache.syncope.core.persistence.api.entity.task.PropagationTask;
  import org.apache.syncope.core.persistence.api.entity.task.TaskExec;
  import org.apache.syncope.core.provisioning.api.propagation.PropagationReporter;
  import org.apache.syncope.core.provisioning.api.propagation.PropagationTaskCallable;
  import org.apache.syncope.core.provisioning.api.propagation.PropagationTaskExecutor;
  import org.apache.syncope.core.provisioning.api.propagation.PropagationTaskInfo;
  import org.apache.syncope.core.spring.security.AuthContextUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.security.core.GrantedAuthority;
  import org.springframework.security.core.context.SecurityContext;
  import org.springframework.security.core.context.SecurityContextHolder;
  
  public class DefaultPropagationTaskCallable implements PropagationTaskCallable {
  
      protected static final Logger LOG = LoggerFactory.getLogger(PropagationTaskCallable.class);
  
      @Autowired
      protected PropagationTaskExecutor taskExecutor;
  
      protected final String domain;
  
      protected final Collection<String> authorities;
  
      protected PropagationTaskInfo taskInfo;
  
      protected PropagationReporter reporter;
  
      protected String executor;
  
      public DefaultPropagationTaskCallable() {
          SecurityContext ctx = SecurityContextHolder.getContext();
          domain = AuthContextUtils.getDomain();
          authorities = ctx.getAuthentication().getAuthorities().stream().
                  map(GrantedAuthority::getAuthority).collect(Collectors.toSet());
      }
  
      @Override
      public void setTaskInfo(final PropagationTaskInfo taskInfo) {
          this.taskInfo = taskInfo;
      }
  
      @Override
      public void setReporter(final PropagationReporter reporter) {
          this.reporter = reporter;
      }
  
      @Override
      public void setExecutor(final String executor) {
          this.executor = executor;
      }
  
      @Override
      public TaskExec<PropagationTask> call() throws Exception {
          return AuthContextUtils.callAs(domain, executor, authorities, () -> {
              LOG.debug("Execution started for {}", taskInfo);
  
              TaskExec<PropagationTask> execution = taskExecutor.execute(taskInfo, reporter, executor);
  
              LOG.debug("Execution completed for {}, {}", taskInfo, execution);
  
              return execution;
          });
      }
  }