text: /*
   * Copyright 2006-2010 the original author or authors.
   *
   * 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.consol.citrus.functions.core;
  
  import com.consol.citrus.context.TestContext;
  import com.consol.citrus.exceptions.InvalidFunctionUsageException;
  import com.consol.citrus.functions.Function;
  import org.springframework.util.CollectionUtils;
  
  import java.util.List;
  
  /**
   * Adds XML CDATA section tags to parameter value. This is extremely useful when having
   * CDATA sections in message payload. Citrus test case itself also uses CDATA sections and
   * nested CDATA sections are not allowed. This function adds the CDATA section tags
   * at runtime.
   *
   * @author Christoph Deppisch
   */
  public class CreateCDataSectionFunction implements Function {
  
      /** CDATA section tags */
      private static final String CDATA_START = "<![CDATA[";
      private static final String CDATA_END = "]]>";
  
      /**
       * {@inheritDoc}
       */
      public String execute(List<String> parameterList, TestContext context) {
          if (CollectionUtils.isEmpty(parameterList) || parameterList.size() != 1) {
              throw new InvalidFunctionUsageException("Invalid function parameter usage - missing parameter value!");
          }
  
          return CDATA_START + parameterList.get(0) + CDATA_END;
      }
  
  }
  