/*
 * Copyright 2006 Google 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.google.gwt.dev.util.xml;

import com.google.gwt.core.ext.UnableToCompleteException;

/**
 * Subclass for converting strings into Integer.
 */
public class AttributeConverterForBoolean extends AttributeConverter {

  @Override
  public Object convertToArg(Schema schema, int line, String elem,
      String attr, String value) throws UnableToCompleteException {
    if (value.equals("true")) {
      return Boolean.TRUE;
    } else if (value.equals("false")) {
      return Boolean.FALSE;
    } else {
      schema.onBadAttributeValue(line, elem, attr, value, Boolean.class);
    }
    return null;
  }
}