/*
    * Copyright (C) 2010, Google Inc.
    * and other copyright owners as documented in the project's IP log.
    *
    * This program and the accompanying materials are made available
    * under the terms of the Eclipse Distribution License v1.0 which
    * accompanies this distribution, is reproduced below, and is
    * available at http://www.eclipse.org/org/documents/edl-v10.php
    *
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or
   * without modification, are permitted provided that the following
   * conditions are met:
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   * - Redistributions of source code must retain the above copyright
   *   notice, this list of conditions and the following disclaimer.
   *
   * - Redistributions in binary form must reproduce the above
   *   copyright notice, this list of conditions and the following
   *   disclaimer in the documentation and/or other materials provided
   *   with the distribution.
   *
   * - Neither the name of the Eclipse Foundation, Inc. nor the
   *   names of its contributors may be used to endorse or promote
   *   products derived from this software without specific prior
   *   written permission.
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   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
   * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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  package org.eclipse.jgit.junit.http;
  
  import java.text.MessageFormat;
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  
  import org.eclipse.jetty.util.log.Logger;
  
  /** Logs warnings into an array for later inspection. */
  public class RecordingLogger implements Logger {
  	private static List<Warning> warnings = new ArrayList<Warning>();
  
  	/** Clear the warnings, automatically done by {@link AppServer#setUp()} */
  	public static void clear() {
  		synchronized (warnings) {
  			warnings.clear();
  		}
  	}
  
  	/** @return the warnings (if any) from the last execution */
  	public static List<Warning> getWarnings() {
  		synchronized (warnings) {
  			ArrayList<Warning> copy = new ArrayList<Warning>(warnings);
  			return Collections.unmodifiableList(copy);
  		}
  	}
  
  	@SuppressWarnings("serial")
  	public static class Warning extends Exception {
  		public Warning(String msg) {
  			super(msg);
  		}
  
  		public Warning(String msg, Throwable cause) {
  			super(msg, cause);
  		}
  
  		public Warning(Throwable thrown) {
  			super(thrown);
  		}
  	}
  
  	private final String name;
  
  	public RecordingLogger() {
  		this("");
  	}
  
  	public RecordingLogger(final String name) {
  		this.name = name;
  	}
  
  	public Logger getLogger(@SuppressWarnings("hiding") String name) {
  		return new RecordingLogger(name);
  	}
 
 	public String getName() {
 		return name;
 	}
 
 	public void warn(String msg, Object arg0, Object arg1) {
 		synchronized (warnings) {
 			warnings.add(new Warning(MessageFormat.format(msg, arg0, arg1)));
 		}
 	}
 
 	public void warn(String msg, Throwable th) {
 		synchronized (warnings) {
 			warnings.add(new Warning(msg, th));
 		}
 	}
 
 	public void warn(String msg) {
 		synchronized (warnings) {
 			warnings.add(new Warning(msg));
 		}
 	}
 
 	public void debug(@SuppressWarnings("unused") String msg,
 			          @SuppressWarnings("unused") Object arg0,
 			          @SuppressWarnings("unused") Object arg1) {
 		// Ignore (not relevant to test failures)
 	}
 
 	public void debug(String msg, Throwable th) {
 		// Ignore (not relevant to test failures)
 	}
 
 	public void debug(@SuppressWarnings("unused") String msg) {
 		// Ignore (not relevant to test failures)
 	}
 
 	public void info(@SuppressWarnings("unused") String msg,
 			         @SuppressWarnings("unused") Object arg0,
 			         @SuppressWarnings("unused") Object arg1) {
 		// Ignore (not relevant to test failures)
 	}
 
 	public void info(@SuppressWarnings("unused") String msg) {
 		// Ignore (not relevant to test failures)
 	}
 
 	public boolean isDebugEnabled() {
 		return false;
 	}
 
 	public void setDebugEnabled(boolean enabled) {
 		// Ignore (not relevant to test failures)
 	}
 
 	public void warn(String msg, Object... args) {
 		synchronized (warnings) {
 			warnings.add(new Warning(MessageFormat.format(msg, args)));
 		}
 	}
 
 	public void warn(Throwable thrown) {
 		synchronized (warnings) {
 			warnings.add(new Warning(thrown));
 		}
 	}
 
 	public void info(String msg, Object... args) {
 		// Ignore (not relevant to test failures)
 	}
 
 	public void info(Throwable thrown) {
 		// Ignore (not relevant to test failures)
 	}
 
 	public void info(String msg, Throwable thrown) {
 		// Ignore (not relevant to test failures)
 	}
 
 	public void debug(String msg, Object... args) {
 		// Ignore (not relevant to test failures)
 	}
 
 	public void debug(Throwable thrown) {
 		// Ignore (not relevant to test failures)
 	}
 
 	public void ignore(Throwable arg0) {
 		// Ignore (not relevant to test failures)
 	}
 
 	@Override
 	public void debug(String msg, long value) {
 		// Ignore (not relevant to test failures)
 	}
 }