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    1   /*
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements.  See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache License, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License.  You may obtain a copy of the License at
    8    *
    9    *      http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   */
    17  package org.apache.commons.vfs;
    18
    19
    20  /***
    21   * Abstract class which has the right to fill FileSystemOptions
    22   *
    23   * @author <a href="mailto:imario@apache.org">Mario Ivankovits</a>
    24   * @version $Revision: 480428 $ $Date: 2006-11-29 07:15:24 +0100 (Mi, 29 Nov 2006) $
    25   */
    26  public abstract class FileSystemConfigBuilder
    27  {
    28      protected void setParam(FileSystemOptions opts, String name, Object value)
    29      {
    30          opts.setOption(getConfigClass(), name, value);
    31      }
    32
    33      protected Object getParam(FileSystemOptions opts, String name)
    34      {
    35          if (opts == null)
    36          {
    37              return null;
    38          }
    39
    40          return opts.getOption(getConfigClass(), name);
    41      }
    42
    43      protected boolean hasParam(FileSystemOptions opts, String name)
    44      {
    45          if (opts == null)
    46          {
    47              return false;
    48          }
    49
    50          return opts.hasOption(getConfigClass(), name);
    51      }
    52
    53      protected abstract Class getConfigClass();
    54  }