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 com.alibaba.jstorm.utils;
  
  import java.io.File;
  import java.io.IOException;
  
  import org.apache.commons.io.FileUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Simple Assert, avoid include junit depenency
   * 
   * @author longda
   *        
   */
  public class Assert {
      public static Logger LOG = LoggerFactory.getLogger(Assert.class);
      public static String ERROR_FILE_NAME = "error.msg";
      
      public static void dumpError(String errMsg) {
          File file = new File(ERROR_FILE_NAME);
          
          try {
              FileUtils.writeStringToFile(file, "\n!!!!!!!!!!!!!!!!!!!!!!\n", true);
              FileUtils.writeStringToFile(file, errMsg, true);
              FileUtils.writeStringToFile(file, "\n!!!!!!!!!!!!!!!!!!!!!!\n", true);
          } catch (IOException e) {
              // TODO Auto-generated catch block
              LOG.error("Failed to dump " + errMsg, e);
          }
          
      }
      
      public static void assertTrue(String errMsg, boolean condition) {
          if (condition == false) {
              fail(errMsg);
          }
      }
      
      public static void fail(String errMsg) {
          RuntimeException exception = new RuntimeException(errMsg);
          dumpError(JStormUtils.getErrorInfo(exception));
          throw exception;
      }
  }
  