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
   *
   *     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 com.aliyun.odps.udf.local.runner;
  
  import com.aliyun.odps.data.TableInfo;
  import org.apache.commons.cli.CommandLine;
  
  import com.aliyun.odps.Odps;
  import com.aliyun.odps.udf.Aggregator;
  import com.aliyun.odps.udf.UDF;
  import com.aliyun.odps.udf.UDFException;
  import com.aliyun.odps.udf.UDTF;
  import com.aliyun.odps.udf.local.LocalRunError;
  import com.aliyun.odps.udf.local.LocalRunException;
  import com.aliyun.odps.udf.local.util.ClassUtils;
  
  public class RunnerFactory {
  
    public static BaseRunner getRunner(CommandLine cmdl, Odps odps, TableInfo tableInfo) throws LocalRunException,
                                                                           UDFException {
  
      String className = cmdl.getOptionValue("c");
  
      Object obj = null;
      try {
        obj = ClassUtils.newInstance(RunnerFactory.class.getClassLoader(), className);
      } catch (Exception e) {
        throw new LocalRunError("Invalid class name:" + className + "\n" + e.getMessage());
      }
  
      if (obj instanceof UDF) {
        return new UDFRunner(odps, className, tableInfo);
      } else if (obj instanceof UDTF) {
        return new UDTFRunner(odps, className);
      } else if (obj instanceof Aggregator) {
        return new AggregatorRunner(odps, className);
      }
  
      throw new LocalRunError("Unsupported class:" + className
                              + ", it must extends from one of the following:\n"
                              + "com.aliyun.odps.udf.UDF\n"
                              + "com.aliyun.odps.udf.UDTF\n" + "com.aliyun.odps.udf.Aggregator\n");
    }
  
  }
  