content: /*
   * Copyright 2010-2025 Hyland Software, Inc. and its affiliates.
   *
   * 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.
   */
  package org.activiti.engine.impl.cmd;
  
  import java.io.ByteArrayInputStream;
  import java.io.InputStream;
  import java.io.Serializable;
  import org.activiti.engine.ActivitiIllegalArgumentException;
  import org.activiti.engine.ActivitiObjectNotFoundException;
  import org.activiti.engine.impl.interceptor.Command;
  import org.activiti.engine.impl.interceptor.CommandContext;
  import org.activiti.engine.impl.persistence.entity.ResourceEntity;
  import org.activiti.engine.repository.Deployment;
  
  /**
  
   */
  public class GetDeploymentResourceCmd implements Command<InputStream>, Serializable {
  
      private static final long serialVersionUID = 1L;
      protected String deploymentId;
      protected String resourceName;
  
      public GetDeploymentResourceCmd(String deploymentId, String resourceName) {
          this.deploymentId = deploymentId;
          this.resourceName = resourceName;
      }
  
      public InputStream execute(CommandContext commandContext) {
          if (deploymentId == null) {
              throw new ActivitiIllegalArgumentException("deploymentId is null");
          }
          if (resourceName == null) {
              throw new ActivitiIllegalArgumentException("resourceName is null");
          }
  
          ResourceEntity resource = commandContext
              .getResourceEntityManager()
              .findResourceByDeploymentIdAndResourceName(deploymentId, resourceName);
          if (resource == null) {
              if (commandContext.getDeploymentEntityManager().findById(deploymentId) == null) {
                  throw new ActivitiObjectNotFoundException(
                      "deployment does not exist: " + deploymentId,
                      Deployment.class
                  );
              } else {
                  throw new ActivitiObjectNotFoundException(
                      "no resource found with name '" + resourceName + "' in deployment '" + deploymentId + "'",
                      InputStream.class
                  );
              }
          }
          return new ByteArrayInputStream(resource.getBytes());
      }
  }
  