Package org.apache.sqoop.shell

Source Code of org.apache.sqoop.shell.UpdateCommand

/**
* 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.sqoop.shell;

import org.apache.sqoop.common.SqoopException;
import org.apache.sqoop.shell.core.ShellError;
import org.apache.sqoop.shell.core.Constants;
import org.codehaus.groovy.tools.shell.Shell;

import java.util.List;

import static org.apache.sqoop.shell.ShellEnvironment.*;

/**
*
*/
public class UpdateCommand extends SqoopCommand {

  private UpdateConnectionFunction connectionFunction;
  private UpdateJobFunction jobFunction;

  public UpdateCommand(Shell shell) {
    super(shell, Constants.CMD_UPDATE, Constants.CMD_UPDATE_SC,
      new String[] {Constants.FN_CONNECTION, Constants.FN_JOB},
      Constants.PRE_UPDATE, Constants.SUF_INFO);
  }

  public Object executeCommand(List args) {
    if(!isInteractive()) {
      throw new SqoopException(ShellError.SHELL_0007, "update");
    }

    if (args.size() == 0) {
      printlnResource(Constants.RES_UPDATE_USAGE, getUsage());
      return null;
    }

    String func = (String)args.get(0);
    if (func.equals(Constants.FN_CONNECTION)) {
      if (connectionFunction == null) {
        connectionFunction = new UpdateConnectionFunction();
      }
      return connectionFunction.execute(args);
    } else if (func.equals(Constants.FN_JOB)) {
      if (jobFunction == null) {
        jobFunction = new UpdateJobFunction();
      }
      return jobFunction.execute(args);
    } else {
      printlnResource(Constants.RES_FUNCTION_UNKNOWN, func);
      return null;
    }
  }
}
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