filemgr/src/main/java/org/apache/oodt/cas/filemgr/cli/action/GetNumProductsCliAction.java

/*
 * 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.oodt.cas.filemgr.cli.action;

//Apache imports
import org.apache.commons.lang.Validate;

//OODT imports
import org.apache.oodt.cas.cli.exception.CmdLineActionException;
import org.apache.oodt.cas.filemgr.structs.ProductType;
import org.apache.oodt.cas.filemgr.system.FileManagerClient;

/**
 * A {@link CmdLineAction} which gets number of {@link Product}s of a given
 * {@link ProuctType}.
 * 
 * @author bfoster (Brian Foster)
 */
public class GetNumProductsCliAction extends FileManagerCliAction {

   private String productTypeName;

   @Override
   public void execute(ActionMessagePrinter printer)
         throws CmdLineActionException {
      try (FileManagerClient client = getClient()) {
         Validate.notNull(productTypeName, "Must specify productTypeName");

         ProductType pt = client.getProductTypeByName(productTypeName);
         if (pt == null) {
            throw new Exception("FileManager returned null ProductType");
         }
         printer.println("Type: ["
               + productTypeName
               + "], Num Products: ["
               + client.getNumProducts(pt) + "]");
      } catch (Exception e) {
         throw new CmdLineActionException(
               "Failed to get number of products for" + " ProductType name '"
                     + productTypeName + "' : " + e.getMessage(), e);
      }
   }

   public void setProductTypeName(String productTypeName) {
      this.productTypeName = productTypeName;
   }
}