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.ambari.server.controller.internal;
  
  /**
   * Various strategies for trimming properties during blueprint deployment.
   */
  public enum TrimmingStrategy {
  
    DEFAULT {
      @Override
      public String trim(String stringToTrim) {
        return stringToTrim.trim();
      }
    },
  
    DIRECTORIES {
      @Override
      public String trim(String stringToTrim) {
        return stringToTrim.replaceAll("\\s*,+\\s*", ",").trim();
      }
    },
  
    PASSWORD {
      @Override
      public String trim(String stringToTrim) {
        return stringToTrim;
      }
    },
  
    DELETE_SPACES_AT_END {
      @Override
      public String trim(String stringToTrim) {
        if (" ".equals(stringToTrim)) {
          return stringToTrim;
        }
        return stringToTrim.replaceAll("\\s+$", "");
      }
    }
    ;
  
    public abstract String trim(String stringToTrim);
  
  }
  
  