hakunin/show_exception.mirah

## show_exception.mirah
class ShowException

  def initialize
    @html = '<html>
    <style>
      body {
        font-family:arial;
        margin:0;
        padding:0;
      }
      th { text-align:left }
      .vars {
        border:1px solid #ccc;
        margin:0.5em;
        width:45%;
        border-spacing:0;
        font-size:13px;
        float:left;
      }
      .vars td, .vars th {
        background:#fff;
        line-height:190%;
        padding:0 8px;
      }
      .vars tr:nth-child(odd) td, .vars tr:nth-child(odd) th {
        background:#f8f8f8;
      }
      .fw { display:none }
      .fw-reflection { display:none }
      .trace {
        background:#fff;
        padding:1em 2em;
        border:1px solid #eee;
      }
      .trace .line {
        padding:2px 4px;
      }
      .exception_message {
        background:#ffc;
        padding:20px 15px;
        margin:0;
        border-bottom:1px solid #ccc;
      }
      .more_info {
        background:#eee;
        padding:10px;
      }
      .exception_class {
        color:gray;
        font-size:14px;
        padding-bottom:0.6em;
      }
      .clear { clear:both }
      .first {
        background-color:blue;
        color:white;
        font-weight:bold;
      }
      table h2 {
        margin:0;
        line-height:180%;
      }
    </style>
    <body>
    '
    @vars = ''
  end

  def pretty(request:HttpServletRequest, ex:Throwable)
    sw = StringWriter.new()
    pw = PrintWriter.new(sw, true)
    ex.printStackTrace(pw)
    pw.flush()
    sw.flush()

    trace = ''
    lineno = 0
    first_app = true
    sw.toString().split("\n").each { |_line|
      if lineno == 0
        lineno += 1
        next
      end
      lineno += 1

      line = _line.split("at ")[1]

      cls = 'app'

      if line.startsWith('dubious.') || line.startsWith('org.mortbay.jetty')
        cls = 'fw'
      end

      if cls.equals('app') && first_app
        first_app = false
        cls += ' first'
      end

      if line.startsWith('sun.reflect')
        cls = 'fw-reflection'
      end

      trace += "<div class=\"line lineno-#{lineno} #{cls}\">#{line}</div>"
    }


    @html += "<h1 class=\"exception_message\"><div class=\"exception_class\">#{ex.getClass.getName}</div> #{ex.getMessage}</h1>\n<div class=\"more_info\"><pre class=\"trace\">#{trace}</pre>"

    @html += "<table class=\"vars\">"
    @html += "<th colspan=\"2\"><h2>Request</h2></th>"
    set(:AUTH_TYPE,	request.getAuthType())
    set(:CONTENT_TYPE,	request.getContentType())
    set(:CONTENT_LENGTH,	request.getContentLength())
    set(:PATH_INFO,	request.getPathInfo())
    set(:PATH_TRANSLATED,	request.getPathTranslated())
    set(:QUERY_STRING,	request.getQueryString())
    set(:REMOTE_ADDR,	request.getRemoteAddr())
    set(:REMOTE_HOST,	request.getRemoteHost())
    set(:REMOTE_USER,	request.getRemoteUser())
    set(:REQUEST_METHOD,	request.getMethod())
    set(:SCRIPT_NAME,	request.getServletPath())
    set(:SERVER_NAME,	request.getServerName())
    set(:SERVER_PROTOCOL,	request.getProtocol())
    set(:SERVER_PORT, request.getServerPort())
    @html += '</table>'

    @html += "<table class=\"vars\">"
    @html += "<th colspan=\"2\"><h2>Params</h2></th>"
    map = request.getParameterMap
    i = map.keySet.iterator
    while i.hasNext()
      key = String(i.next)
      set(key, request.getParameter(key))
    end
    @html += '</table>'


    @html += "<table class=\"vars\">"
    @html += "<th colspan=\"2\"><h2>Session</h2></th>"
    session = request.getSession()
    names = session.getAttributeNames

    while names.hasMoreElements
      key = String(names.nextElement)
      set(key, String.valueOf(session.getAttribute(key)))
    end
    @html += '</table>'


    @html + '<div class="clear"></div></div></body></html>'
  end


  def set(k:String, v: String)
    @html += "<tr><th>#{k}</th><td>#{v}</td></tr>"
  end

  def set(k:String, v: int)
    set(k, String.valueOf(v))
  end

end
	class ShowException

	def initialize
	@html = '<html>
	<style>
	body {
	font-family:arial;
	margin:0;
	padding:0;
	}
	th { text-align:left }
	.vars {
	border:1px solid #ccc;
	margin:0.5em;
	width:45%;
	border-spacing:0;
	font-size:13px;
	float:left;
	}
	.vars td, .vars th {
	background:#fff;
	line-height:190%;
	padding:0 8px;
	}
	.vars tr:nth-child(odd) td, .vars tr:nth-child(odd) th {
	background:#f8f8f8;
	}
	.fw { display:none }
	.fw-reflection { display:none }
	.trace {
	background:#fff;
	padding:1em 2em;
	border:1px solid #eee;
	}
	.trace .line {
	padding:2px 4px;
	}
	.exception_message {
	background:#ffc;
	padding:20px 15px;
	margin:0;
	border-bottom:1px solid #ccc;
	}
	.more_info {
	background:#eee;
	padding:10px;
	}
	.exception_class {
	color:gray;
	font-size:14px;
	padding-bottom:0.6em;
	}
	.clear { clear:both }
	.first {
	background-color:blue;
	color:white;
	font-weight:bold;
	}
	table h2 {
	margin:0;
	line-height:180%;
	}
	</style>
	<body>
	'
	@vars = ''
	end

	def pretty(request:HttpServletRequest, ex:Throwable)
	sw = StringWriter.new()
	pw = PrintWriter.new(sw, true)
	ex.printStackTrace(pw)
	pw.flush()
	sw.flush()

	trace = ''
	lineno = 0
	first_app = true
	sw.toString().split("\n").each { \|_line\|
	if lineno == 0
	lineno += 1
	next
	end
	lineno += 1

	line = _line.split("at ")[1]

	cls = 'app'

	if line.startsWith('dubious.') \|\| line.startsWith('org.mortbay.jetty')
	cls = 'fw'
	end

	if cls.equals('app') && first_app
	first_app = false
	cls += ' first'
	end

	if line.startsWith('sun.reflect')
	cls = 'fw-reflection'
	end

	trace += "<div class=\"line lineno-#{lineno} #{cls}\">#{line}</div>"
	}


	@html += "<h1 class=\"exception_message\"><div class=\"exception_class\">#{ex.getClass.getName}</div> #{ex.getMessage}</h1>\n<div class=\"more_info\"><pre class=\"trace\">#{trace}</pre>"

	@html += "<table class=\"vars\">"
	@html += "<th colspan=\"2\"><h2>Request</h2></th>"
	set(:AUTH_TYPE, request.getAuthType())
	set(:CONTENT_TYPE, request.getContentType())
	set(:CONTENT_LENGTH, request.getContentLength())
	set(:PATH_INFO, request.getPathInfo())
	set(:PATH_TRANSLATED, request.getPathTranslated())
	set(:QUERY_STRING, request.getQueryString())
	set(:REMOTE_ADDR, request.getRemoteAddr())
	set(:REMOTE_HOST, request.getRemoteHost())
	set(:REMOTE_USER, request.getRemoteUser())
	set(:REQUEST_METHOD, request.getMethod())
	set(:SCRIPT_NAME, request.getServletPath())
	set(:SERVER_NAME, request.getServerName())
	set(:SERVER_PROTOCOL, request.getProtocol())
	set(:SERVER_PORT, request.getServerPort())
	@html += '</table>'

	@html += "<table class=\"vars\">"
	@html += "<th colspan=\"2\"><h2>Params</h2></th>"
	map = request.getParameterMap
	i = map.keySet.iterator
	while i.hasNext()
	key = String(i.next)
	set(key, request.getParameter(key))
	end
	@html += '</table>'



	@html += "<table class=\"vars\">"
	@html += "<th colspan=\"2\"><h2>Session</h2></th>"
	session = request.getSession()
	names = session.getAttributeNames

	while names.hasMoreElements
	key = String(names.nextElement)
	set(key, String.valueOf(session.getAttribute(key)))
	end
	@html += '</table>'


	@html + '<div class="clear"></div></div></body></html>'
	end


	def set(k:String, v: String)
	@html += "<tr><th>#{k}</th><td>#{v}</td></tr>"
	end

	def set(k:String, v: int)
	set(k, String.valueOf(v))
	end

	end