/**
    * Logback: the reliable, generic, fast and flexible logging framework.
    * Copyright (C) 1999-2011, QOS.ch. All rights reserved.
    *
    * This program and the accompanying materials are dual-licensed under
    * either the terms of the Eclipse Public License v1.0 as published by
    * the Eclipse Foundation
    *
    *   or (per the licensee's choosing)
   *
   * under the terms of the GNU Lesser General Public License version 2.1
   * as published by the Free Software Foundation.
   */
  package ch.qos.logback.core.pattern;
  
  import java.util.List;
  
  import ch.qos.logback.core.Context;
  import ch.qos.logback.core.spi.ContextAware;
  import ch.qos.logback.core.spi.ContextAwareBase;
  import ch.qos.logback.core.spi.LifeCycle;
  import ch.qos.logback.core.status.Status;
  
  abstract public class DynamicConverter<E> extends FormattingConverter<E>
      implements LifeCycle, ContextAware {
  
    ContextAwareBase cab = new ContextAwareBase(this);
  
    // Contains a list of option Strings.
    private List<String> optionList;
  
    /**
     * Is this component active?
     */
    boolean started = false;
  
    /**
     * Components that depend on options passed during configuration can override
     * this method in order to make appropriate use of those options. For simpler
     * components, the trivial implementation found in this abstract class will be
     * sufficient.
     */
    public void start() {
      started = true;
    }
  
    public void stop() {
      started = false;
    }
  
    public boolean isStarted() {
      return started;
    }
  
    public void setOptionList(List<String> optionList) {
      this.optionList = optionList;
    }
  
    /**
     * Return the first option passed to this component. The returned value may be
     * null if there are no options.
     * 
     * @return First option, may be null.
     */
    public String getFirstOption() {
      if (optionList == null || optionList.size() == 0) {
        return null;
      } else {
        return optionList.get(0);
      }
    }
  
    protected List<String> getOptionList() {
      return optionList;
    }
  
    public void setContext(Context context) {
      cab.setContext(context);
    }
  
    public Context getContext() {
      return cab.getContext();
    }
  
    public void addStatus(Status status) {
      cab.addStatus(status);
    }
  
    public void addInfo(String msg) {
      cab.addInfo(msg);
    }
  
    public void addInfo(String msg, Throwable ex) {
      cab.addInfo(msg, ex);
    }
  
    public void addWarn(String msg) {
      cab.addWarn(msg);
    }
 
   public void addWarn(String msg, Throwable ex) {
     cab.addWarn(msg, ex);
   }
 
   public void addError(String msg) {
     cab.addError(msg);
   }
 
   public void addError(String msg, Throwable ex) {
     cab.addError(msg, ex);
   }
 }