Package org.mvel2.conversion

Source Code of org.mvel2.conversion.IntArrayCH

/**
* MVEL 2.0
* Copyright (C) 2007 The Codehaus
* Mike Brock, Dhanji Prasanna, John Graham, Mark Proctor
*
* 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 org.mvel2.conversion;

import org.mvel2.ConversionException;
import org.mvel2.ConversionHandler;

import java.util.HashMap;
import java.util.Map;

public class IntArrayCH implements ConversionHandler {
  private static final Map<Class, Converter> CNV =
      new HashMap<Class, Converter>();


  public Object convertFrom(Object in) {

    if (!CNV.containsKey(in.getClass())) throw new ConversionException("cannot convert type: "
        + in.getClass().getName() + " to: " + Boolean.class.getName());
    return CNV.get(in.getClass()).convert(in);
  }


  public boolean canConvertFrom(Class cls) {
    return CNV.containsKey(cls);
  }

  static {
    CNV.put(String[].class,
        new Converter() {
          public Object convert(Object o) {
            String[] old = (String[]) o;
            Integer[] n = new Integer[old.length];
            for (int i = 0; i < old.length; i++) {
              n[i] = Integer.parseInt(old[i]);
            }

            return n;
          }
        }
    );

    CNV.put(Object[].class,
        new Converter() {
          public Object convert(Object o) {
            Object[] old = (Object[]) o;
            Integer[] n = new Integer[old.length];
            for (int i = 0; i < old.length; i++) {
              n[i] = Integer.parseInt(String.valueOf(old[i]));
            }

            return n;
          }
        }
    );

  }
}
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