/*
    * 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.hadoop.chukwa.conf;
  
  
  import java.io.File;
  import org.apache.hadoop.conf.Configuration;
  import org.apache.hadoop.fs.Path;
  import org.apache.log4j.Logger;
  
  public class ChukwaConfiguration extends Configuration {
    static Logger log = Logger.getLogger(ChukwaConfiguration.class);
  
    private String chukwaHome, chukwaConf;
    
    public String getChukwaHome() {
      return chukwaHome;
    }
    
    public String getChukwaConf() {
      return chukwaConf;
    }
    
    public ChukwaConfiguration() {
      this(true);
    }
  
    public ChukwaConfiguration(boolean loadDefaults) {
      super();
      if (loadDefaults) {
  
        chukwaHome = System.getenv("CHUKWA_HOME");
        if (chukwaHome == null) {
          chukwaHome = ".";
        }
  
        if (!chukwaHome.endsWith("/")) {
          chukwaHome = chukwaHome + File.separator;
        }
        chukwaConf = System.getenv("CHUKWA_CONF_DIR");
        if (chukwaConf == null) {
          chukwaConf = chukwaHome + "conf" + File.separator;
        }
  
        log.info("chukwaConf is " + chukwaConf);
  
        super.addResource(new Path(chukwaConf + "/chukwa-common.xml"));
        log.debug("added chukwa-agent-conf.xml to ChukwaConfiguration");
  
        super.addResource(new Path(chukwaConf + "/chukwa-agent-conf.xml"));
        log.debug("added chukwa-agent-conf.xml to ChukwaConfiguration");
  
        super.addResource(new Path(chukwaConf + "/chukwa-collector-conf.xml"));
        log.debug("added chukwa-collector-conf.xml to ChukwaConfiguration");
  
        super.addResource(new Path(chukwaConf + "/chukwa-demux-conf.xml"));
        log.debug("added chukwa-demux-conf.xml to ChukwaConfiguration");
      }
    }
  
  }