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 org.apache.weex.utils;
  
  import android.support.annotation.NonNull;
  
  import java.util.HashMap;
  import java.util.LinkedList;
  import java.util.List;
  import java.util.Map;
  
  public class SingleFunctionParser<V> extends FunctionParser<String, List<V>> {
  
    public interface FlatMapper<V> {
  
      V map(String raw);
    }
  
    public interface NonUniformMapper<V>{
      List<V> map(List<String> raw);
    }
  
    /**
     * Construct a function parser for uniform parameters.
     * @param source the raw string representation of a group of function(s)
     * @param mapper the mapping rule between string and corresponding type of object.
     */
    public SingleFunctionParser(@NonNull String source, @NonNull final FlatMapper<V> mapper) {
      super(source, new Mapper<String, List<V>>() {
        @Override
        public Map<String, List<V>> map(String functionName, List<String> raw) {
          Map<String, List<V>> map = new HashMap<String, List<V>>();
          List<V> list = new LinkedList<V>();
          for (String item : raw) {
            list.add(mapper.map(item));
          }
          map.put(functionName, list);
          return map;
        }
      });
    }
  
    /**
     * Construct a function parser for non-uniform parameters.
     * @param source the raw string representation of a group of function(s)
     * @param mapper the mapping rule between string and corresponding type of object.
     */
    public SingleFunctionParser(@NonNull String source, @NonNull final NonUniformMapper<V> mapper) {
      super(source, new Mapper<String, List<V>>() {
        @Override
        public Map<String, List<V>> map(String functionName, List<String> raw) {
          Map<String, List<V>> map = new HashMap<String, List<V>>();
          map.put(functionName, mapper.map(raw));
          return map;
        }
      });
    }
  
    public List<V> parse(String functionName) {
      Map<String, List<V>> map = parse();
      if(map.containsKey(functionName)){
        return map.get(functionName);
      }
      return null;
    }
  }
  