com.metamx.common.guava.Fns Maven / Gradle / Ivy

/*
 * Copyright 2011,2012 Metamarkets Group Inc.
 *
 * 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 com.metamx.common.guava;

import com.google.common.base.Function;

import java.util.Map;

/**
 */
public class Fns
{
  public static Function splitFn(final String splitChar, final int numCols)
  {
    return new Function()
    {
      public String[] apply(String input)
      {
        return input.split(splitChar, numCols);
      }
    };
  }

  public static  Function, OutType> getFromMap(final KeyType key)
  {
    return new Function, OutType>()
    {
      @Override
      public OutType apply(Map in)
      {
        return in.get(key);
      }
    };
  }
}