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From conflue...@apache.org
Subject [CONF] Apache Camel: Scala DSL - EIP (page edited)
Date Thu, 24 Jul 2008 14:54:00 GMT
<html>
<head>
    <base href="http://cwiki.apache.org/confluence" />
    <style type="text/css">
    <!--
    body, p, td, table, tr, .bodytext, .stepfield {
	font-family: Verdana, arial, sans-serif;
	font-size: 11px;
	line-height: 16px;
	color: #000000;
	font-weight: normal;
}
#PageContent {
	text-align: left;
	background-color: #fff;
	padding: 0px;
	margin: 0px;
    padding-bottom:20px;
}
/*
** when this stylesheet is used for the Tiny MCE Wysiwyg editor's edit area, we can't
** use an id=PageContent or class=wiki-content, so we must
** set the body style to that used for PageContent, and p to that used for wiki-content.
*/

body {
	margin: 0px;
	padding: 0px;
	text-align: center;
    background-color: #f0f0f0;
}

@media print {

body {
    background-color: #fff;
}

}

.monospaceInput {
    font:12px monospace
}

.wiki-content p, .commentblock p {
    margin: 16px 0px 16px 0px;
    padding: 0px;
}

.wiki-content-preview {
    padding: 5px;
    border-left: 1px solid #3c78b5;
    border-right: 1px solid #3c78b5;
}

ul, ol {
    margin-top: 2px;
    margin-bottom: 2px;
    padding-top: 0px;
    padding-bottom: 0px;
}

pre {
    padding: 0px;
    margin-top: 5px;
    margin-left: 15px;
    margin-bottom: 5px;
    margin-right: 5px;
    text-align: left;
}

.helpheading {
    font-weight: bold;
    background-color: #D0D9BD;
        border-bottom: 1px solid #3c78b5;
        padding: 4px 4px 4px 4px;
        margin: 0px;
        margin-top: 10px;
}
.helpcontent {
        padding: 4px 4px 20px 4px;
    background-color: #f5f7f1;
}

.code {
 	border: 1px dashed #3c78b5;
    font-size: 11px;
	font-family: Courier;
    margin: 10px;
	line-height: 13px;
}

.focusedComment {
    background: #ffffce;
}

.commentBox, .focusedComment {
    padding: 10px;
    margin: 5px 0 5px 0;
    border: 1px #bbb solid;
}

.codeHeader {
    background-color: #f0f0f0;
 	border-bottom: 1px dashed #3c78b5;
    padding: 3px;
	text-align: center;
}

.codeContent {
    text-align: left;
    background-color: #f0f0f0;
    padding: 3px;
}

.preformatted {
 	border: 1px dashed #3c78b5;
    font-size: 11px;
	font-family: Courier;
    margin: 10px;
	line-height: 13px;
}

.preformattedHeader {
    background-color: #f0f0f0;
 	border-bottom: 1px dashed #3c78b5;
    padding: 3px;
	text-align: center;
}

.preformattedContent {
    background-color: #f0f0f0;
    padding: 3px;
}

.panel {
 	border: 1px dashed #3c78b5;
    margin: 10px;
    margin-top: 0px;
}

.panelHeader {
    background-color: #f0f0f0;
 	border-bottom: 1px dashed #3c78b5;
    padding: 3px;
	text-align: center;
}

.panelContent {
    background-color: #f0f0f0;
    padding: 5px;
}

.anonymousAlert {
    background-color: #f0f0f0;
 	border: 1px dashed red;
    font-size: 11px;
    padding: 10px 5px 10px 5px;
    margin: 4px;
	line-height: 13px;
}

.lockAlert {
    background-color: #f0f0f0;
    width: 50%;
 	border: 1px dashed red;
    font-size: 11px;
    padding: 10px 5px 10px 5px;
    margin: 4px;
	line-height: 13px;
}


.code-keyword {
  color: #000091;
  background-color: inherit;
}

.code-object {
  color: #910091;
  background-color: inherit;
}

.code-quote {
  color: #009100;
  background-color: inherit;
}

.code-comment {
  color: #808080;
  background-color: inherit;
}


.code-xml .code-keyword {
  color: inherit;
  font-weight: bold;
}

.code-tag {
  color: #000091;
  background-color: inherit;
}

.breadcrumbs {
    background-color: #f0f0f0;
 	border-color: #3c78b5;
	border-width: 1px 0px 1px 0px;
	border-style: solid;
    font-size: 11px;
    padding: 3px 0px 3px 0px;
}

.navmenu {
    border: 1px solid #ccc;
}

.menuheading {
    font-weight: bold;
    background-color: #f0f0f0;
 	border-bottom: 1px solid #3c78b5;
	padding: 4px 4px 2px 4px;
}

.menuitems {
	padding: 4px 4px 20px 4px;
}

.rightpanel {
    border-left: 1px solid #ccc;
    border-bottom: 1px solid #ccc;
}

#helpheading {
    text-align: left;
    font-weight: bold;
    background-color: #D0D9BD;
 	border-bottom: 1px solid #3c78b5;
	padding: 4px 4px 4px 4px;
	margin: 0px;
}
#helpcontent {
	padding: 4px 4px 4px 4px;
    background-color: #f5f7f1;
}
.helptab-unselected {
    font-weight: bold;
	padding: 5px;
    background-color: #f5f7f1;
}
.helptab-selected {
    font-weight: bold;
    background-color: #D0D9BD;
	padding: 5px;
}
.helptabs {
    margin: 0px;
    background-color: #f5f7f1;
	padding: 5px;
}
.infopanel-heading {
    font-weight: bold;
	padding: 4px 0px 2px 0px;
}

.pagebody {
}

.pageheader {
	padding: 5px 5px 5px 0px;
 	border-bottom: 1px solid #3c78b5;
}

.pagetitle {
	font-size: 22px;
	font-weight: bold;
	font-family: Arial, sans-serif;
	color: #003366;
}

.newpagetitle {
    color: #ccc !important;
}

.steptitle {
	font-size: 18px;
	font-weight: bold;
	font-family: Arial, sans-serif;
	color: #003366;
	margin-bottom: 7px;
}

.substeptitle {
    font-size: 12px;
    font-weight: bold;
    font-family: Arial, sans-serif;
    color: #003366;
    margin: 2px 4px 4px 4px;
    padding: 2px 4px 1px 4px;
}

.stepdesc {
    font-family: Verdana, arial, sans-serif;
	font-size: 11px;
	line-height: 16px;
	font-weight: normal;
    color: #666666;
    margin-top: 7px;
    margin-bottom: 7px;
}

.steplabel {
    font-weight: bold;
    margin-right: 4px;
    color: black;
    float: left;
    width: 15%;
    text-align: right;
}

.stepfield {
    background: #f0f0f0;
    padding: 5px;
}

.submitButtons{
    margin-top:5px;
    text-align:right;
}

.formtitle {
	font-size: 12px;
	font-weight: bold;
	font-family: Arial, sans-serif;
	color: #003366;
}

.sectionbottom {
    border-bottom: 1px solid #3c78b5;
}

.topRow {
    border-top: 2px solid #3c78b5;
}

.tabletitle {
	font-size: 14px;
	font-weight: bold;
	font-family: Arial, sans-serif;
    padding: 3px 0px 2px 0px;
    margin: 8px 4px 2px 0px;
	color: #003366;
	border-bottom: 2px solid #3c78b5;
}
.pagesubheading {
    color: #666666;
    font-size: 10px;
    padding: 0px 0px 5px 0px;
}

HR {
	color: 3c78b5;
	height: 1;
}

A:link, A:visited, A:active, A:hover {
	color: #003366;
}

h1 A:link, h1 A:visited, h1 A:active {
	text-decoration: none;
}

h1 A:hover {
    border-bottom: 1px dotted #003366;
}

.wiki-content > :first-child, .commentblock > :first-child {
    margin-top: 3px;
}

.logocell {
    padding: 10px;
}

input {
	font-family: verdana, geneva, arial, sans-serif;
	font-size: 11px;
	color: #000000;
}

textarea, textarea.editor {
	font-family: verdana, geneva, arial, sans-serif;
	font-size: 11px;
	color: #333333;
}

/* use logoSpaceLink instead.
.spacenametitle {
	font: 21px/31px Impact, Arial, Helvetica;
    font-weight: 100;
    color: #999999;
	margin: 0px;
}
.spacenametitle img {
  margin: 0 0 -4px 0;
}
.spacenametitle a {
    text-decoration: none;
    color: #999999;
}
.spacenametitle a:visited {
    text-decoration: none;
    color: #999999;
}*/

.spacenametitle-printable {
	font: 20px/25px Impact, Arial, Helvetica;
    font-weight: 100;
    color: #999999;
	margin: 0px;
}
.spacenametitle-printable a {
    text-decoration: none;
    color: #999999;
}
.spacenametitle-printable a:visited {
    text-decoration: none;
    color: #999999;
}

.blogDate {
	font-weight: bold;
	text-decoration: none;
	color: black;
}

.blogSurtitle {
    background: #f0f0f0;
 	border: 1px solid #ddd;
	padding: 3px;
	margin: 1px 1px 10px 1px;
}

.blogHeading {
    font-size: 20px;
    line-height: normal;
    font-weight: bold;
    padding: 0px;
    margin: 0px;
}

.blogHeading a {
   text-decoration: none;
   color: black;
}

.endsection {
	align: right;
	color: #666666;
	margin-top: 10px;
}
.endsectionleftnav {
	align: right;
	color: #666666;
	margin-top: 10px;
}

h1 {
	font-size: 24px;
	line-height: normal;
	font-weight: bold;
	background-color: #f0f0f0;
	color: #003366;
 	border-bottom: 1px solid #3c78b5;
	padding: 2px;
	margin: 36px 0px 4px 0px;
}

h2 {
	font-size: 18px;
	line-height: normal;
	font-weight: bold;
	background-color: #f0f0f0;
 	border-bottom: 1px solid #3c78b5;
	padding: 2px;
	margin: 27px 0px 4px 0px;
}

h3 {
	font-size: 14px;
	line-height: normal;
	font-weight: bold;
	background-color: #f0f0f0;
	padding: 2px;
	margin: 21px 0px 4px 0px;
}

h4 {
	font-size: 12px;
	line-height: normal;
	font-weight: bold;
	background-color: #f0f0f0;
	padding: 2px;
	margin: 18px 0px 4px 0px;
}

h4.search {
	font-size: 12px;
	line-height: normal;
	font-weight: normal;
	background-color: #f0f0f0;
	padding: 4px;
	margin: 18px 0px 4px 0px;
}

h5 {
	font-size: 10px;
	line-height: normal;
	font-weight: bold;
	background-color: #f0f0f0;
	padding: 2px;
	margin: 14px 0px 4px 0px;
}

h6 {
	font-size: 8px;
	line-height: normal;
	font-weight: bold;
	background-color: #f0f0f0;
	padding: 2px;
	margin: 14px 0px 4px 0px;
}

.smallfont {
    font-size: 10px;
}
.descfont {
    font-size: 10px;
    color: #666666;
}
.smallerfont {
    font-size: 9px;
}
.smalltext {
    color: #666666;
    font-size: 10px;
}
.smalltext a {
    color: #666666;
}
.smalltext-blue {
    color: #3c78b5;
    font-size: 10px;
}
.surtitle {
    margin-left: 1px;
    margin-bottom: 5px;
    font-size: 14px;
    color: #666666;
}

/* css hack found here:  http://www.fo3nix.pwp.blueyonder.co.uk/tutorials/css/hacks/ */
.navItemOver { font-size: 10px; font-weight: bold; color: #ffffff; background-color: #003366; cursor: hand; voice-family: '\'}\''; voice-family:inherit; cursor: pointer;}
.navItemOver a { color: #ffffff; background-color:#003366; text-decoration: none; }
.navItemOver a:visited { color: #ffffff; background-color:#003366; text-decoration: none; }
.navItemOver a:hover { color: #ffffff; background-color:#003366; text-decoration: none; }
.navItem { font-size: 10px; font-weight: bold; color: #ffffff; background-color: #3c78b5; }
.navItem a { color: #ffffff; text-decoration: none; }
.navItem a:hover { color: #ffffff; text-decoration: none; }
.navItem a:visited { color: #ffffff; text-decoration: none; }

div.padded { padding: 4px; }
div.thickPadded { padding: 10px; }
h3.macrolibrariestitle {
    margin: 0px 0px 0px 0px;
}

div.centered { text-align: center; margin: 10px; }
div.centered table {margin: 0px auto; text-align: left; }

.tableview table {
    margin: 0;
}

.tableview th {
    text-align: left;
    color: #003366;
    font-size: 12px;
    padding: 5px 0px 0px 5px;
    border-bottom: 2px solid #3c78b5;
}
.tableview td {
    text-align: left;
    border-color: #ccc;
    border-width: 0px 0px 1px 0px;
    border-style: solid;
    margin: 0;
    padding: 4px 10px 4px 5px;
}

.grid {
    margin: 2px 0px 5px 0px;
    border-collapse: collapse;
}
.grid th  {
    border: 1px solid #ccc;
    padding: 2px 4px 2px 4px;
    background: #f0f0f0;
    text-align: center;
}
.grid td  {
    border: 1px solid #ccc;
    padding: 3px 4px 3px 4px;
}
.gridHover {
	background-color: #f9f9f9;
}

td.infocell {
    background-color: #f0f0f0;
}
.label {
	font-weight: bold;
	color: #003366;
}

label {
	font-weight: bold;
	color: #003366;
}

.error {
	background-color: #fcc;
}

.errorBox {
	background-color: #fcc;
    border: 1px solid #c00;
    padding: 5px;
    margin: 5px;
}

.errorMessage {
	color: #c00;
}

.success {
	background-color: #dfd;
}

.successBox {
	background-color: #dfd;
    border: 1px solid #090;
    padding: 5px;
    margin-top:5px;
    margin-bottom:5px;
}

blockquote {
	padding-left: 10px;
	padding-right: 10px;
	margin-left: 5px;
	margin-right: 0px;
	border-left: 1px solid #3c78b5;
}

table.confluenceTable
{
    margin: 5px;
    border-collapse: collapse;
}

/* Added as a temporary fix for CONF-4223. The table elements appear to be inheriting the border: none attribute from the sectionMacro class */
table.confluenceTable td.confluenceTd
{
    border-width: 1px;
    border-style: solid;
    border-color: #ccc;
    padding: 3px 4px 3px 4px;
}

/* Added as a temporary fix for CONF-4223. The table elements appear to be inheriting the border: none attribute from the sectionMacro class */
table.confluenceTable th.confluenceTh
{
    border-width: 1px;
    border-style: solid;
    border-color: #ccc;
    padding: 3px 4px 3px 4px;
    background-color: #f0f0f0;
    text-align: center;
}

td.confluenceTd
{
    border-width: 1px;
    border-style: solid;
    border-color: #ccc;
    padding: 3px 4px 3px 4px;
}

th.confluenceTh
{
    border-width: 1px;
    border-style: solid;
    border-color: #ccc;
    padding: 3px 4px 3px 4px;
    background-color: #f0f0f0;
    text-align: center;
}

DIV.small {
	font-size: 9px;
}

H1.pagename {
	margin-top: 0px;
}

IMG.inline  {}

.loginform {
    margin: 5px;
    border: 1px solid #ccc;
}

/* The text how the "This is a preview" comment should be shown. */
.previewnote { text-align: center;
                font-size: 11px;
                    color: red; }

/* How the preview content should be shown */
.previewcontent { background: #E0E0E0; }

/* How the system messages should be shown (DisplayMessage.jsp) */
.messagecontent { background: #E0E0E0; }

/* How the "This page has been modified..." -comment should be shown. */
.conflictnote { }

.createlink {
    color: maroon;
}
a.createlink {
    color: maroon;
}
.templateparameter {
    font-size: 9px;
    color: darkblue;
}

.diffadded {
    background: #ddffdd;
    padding: 1px 1px 1px 4px;
	border-left: 4px solid darkgreen;
}
.diffdeleted {
    color: #999;
    background: #ffdddd;
    padding: 1px 1px 1px 4px;
	border-left: 4px solid darkred;
}
.diffnochange {
    padding: 1px 1px 1px 4px;
	border-left: 4px solid lightgrey;
}
.differror {
    background: brown;
}
.diff {
    font-family: lucida console, courier new, fixed-width;
	font-size: 12px;
	line-height: 14px;
}
.diffaddedchars {
    background-color:#99ff99;
    font-weight:bolder;
}
.diffremovedchars {
    background-color:#ff9999;
    text-decoration: line-through;
    font-weight:bolder;
}

.greybackground {
    background: #f0f0f0
}

.greybox {
 	border: 1px solid #ddd;
	padding: 3px;
	margin: 1px 1px 10px 1px;
}

.borderedGreyBox {
    border: 1px solid #cccccc;
    background-color: #f0f0f0;
    padding: 10px;
}

.greyboxfilled {
 	border: 1px solid #ddd;
    background: #f0f0f0;
    padding: 3px;
	margin: 1px 1px 10px 1px;
}

.navBackgroundBox {
    padding: 5px 5px 5px 5px;
    font-size: 22px;
	font-weight: bold;
	font-family: Arial, sans-serif;
	color: white;
    background: #3c78b5;
    text-decoration: none;
}

.previewBoxTop {
	background-color: #f0f0f0;
    border-width: 1px 1px 0px 1px;
    border-style: solid;
    border-color: #3c78b5;
    padding: 5px;
    margin: 5px 0px 0px 0px;
    text-align: center;
}
.previewContent {
    background-color: #fff;
 	border-color: #3c78b5;
	border-width: 0px 1px 0px 1px;
	border-style: solid;
	padding: 10px;
	margin: 0px;
}
.previewBoxBottom {
	background-color: #f0f0f0;
    border-width: 0px 1px 1px 1px;
    border-style: solid;
    border-color: #3c78b5;
    padding: 5px;
    margin: 0px 0px 5px 0px;
    text-align: center;
}

.functionbox {
    background-color: #f0f0f0;
 	border: 1px solid #3c78b5;
	padding: 3px;
	margin: 1px 1px 10px 1px;
}

.functionbox-greyborder {
    background-color: #f0f0f0;
 	border: 1px solid #ddd;
	padding: 3px;
	margin: 1px 1px 10px 1px;
}

.search-highlight {
    background-color: #ffffcc;
}

/* normal (white) background */
.rowNormal {
    background-color: #ffffff;
 }

/* alternate (pale yellow) background */
.rowAlternate {
    background-color: #f7f7f7;
}

/* used in the list attachments table */
.rowAlternateNoBottomColor {
    background-color: #f7f7f7;
}

.rowAlternateNoBottomNoColor {
}

.rowAlternateNoBottomColor td {
    border-bottom: 0px;
}

.rowAlternateNoBottomNoColor td {
    border-bottom: 0px;
}

/* row highlight (grey) background */
.rowHighlight {
    background-color: #f0f0f0;

}

TD.greenbar {FONT-SIZE: 2px; BACKGROUND: #00df00; BORDER: 1px solid #9c9c9c; PADDING: 0px; }
TD.redbar {FONT-SIZE: 2px; BACKGROUND: #df0000; BORDER: 1px solid #9c9c9c; PADDING: 0px; }
TD.darkredbar {FONT-SIZE: 2px; BACKGROUND: #af0000; BORDER: 1px solid #9c9c9c; PADDING: 0px; }

TR.testpassed {FONT-SIZE: 2px; BACKGROUND: #ddffdd; PADDING: 0px; }
TR.testfailed {FONT-SIZE: 2px; BACKGROUND: #ffdddd; PADDING: 0px; }

.toolbar  {
    margin: 0px;
    border-collapse: collapse;
}

.toolbar td  {
    border: 1px solid #ccc;
    padding: 2px 2px 2px 2px;
    color: #ccc;
}

td.noformatting {
    border-width: 0px;
    border-style: none;
    text-align: center;
	padding: 0px;
}

.commentblock {
    margin: 12px 0 12px 0;
}

/*
 * Divs displaying the license information, if necessary.
 */
.license-eval, .license-none, .license-nonprofit {
    border-top: 1px solid #bbbbbb;
    text-align: center;
    font-size: 10px;
    font-family: Verdana, Arial, Helvetica, sans-serif;
}

.license-eval, .license-none {
    background-color: #ffcccc;
}

.license-eval b, .license-none b {
    color: #990000
}

.license-nonprofit {
    background-color: #ffffff;
}

/*
 * The shadow at the bottom of the page between the main content and the
 * "powered by" section.
 */
.bottomshadow {
    height: 12px;
    background-image: url("$req.contextPath/images/border/border_bottom.gif");
    background-repeat: repeat-x;
}

/*
 * Styling of the operations box
 */
.navmenu .operations li, .navmenu .operations ul {
    list-style: none;
    margin-left: 0;
    padding-left: 0;
}

.navmenu .operations ul {
    margin-bottom: 9px;
}

.navmenu .label {
    font-weight: inherit;
}

/*
 * Styling of ops as a toolbar
 */
.toolbar div {
    display: none;
}

.toolbar .label {
    display: none;
}

.toolbar .operations {
    display: block;
}

.toolbar .operations ul {
    display: inline;
    list-style: none;
    margin-left: 10px;
    padding-left: 0;
}

.toolbar .operations li {
    list-style: none;
    display: inline;
}

/* list page navigational tabs */
#foldertab {
padding: 3px 0px 3px 8px;
margin-left: 0;
border-bottom: 1px solid #3c78b5;
font: bold 11px Verdana, sans-serif;
}

#foldertab li {
list-style: none;
margin: 0;
display: inline;
}

#foldertab li a {
padding: 3px 0.5em;
margin-left: 3px;
border: 1px solid #3c78b5;
border-bottom: none;
background: #3c78b5;
text-decoration: none;
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<div id="PageContent">
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<td valign="top" class="pagebody">

    <div class="pageheader">
        <span class="pagetitle">
            Page Edited :
            <a href="http://cwiki.apache.org/confluence/display/CAMEL">CAMEL</a> :
            <a href="http://cwiki.apache.org/confluence/display/CAMEL/Scala+DSL+-+EIP">Scala DSL - EIP</a>
        </span>
    </div>

     <p>
        <a href="http://cwiki.apache.org/confluence/display/CAMEL/Scala+DSL+-+EIP">Scala DSL - EIP</a>
        has been edited by             <a href="http://cwiki.apache.org/confluence/display/~gertvanthienen">Gert Vanthienen</a>
            <span class="smallfont">(Jul 24, 2008)</span>.
     </p>
    
     <p>
                 <a href="http://cwiki.apache.org/confluence/pages/diffpagesbyversion.action?pageId=83472&originalVersion=8&revisedVersion=9">(View changes)</a>
     </p>

    <span class="label">Content:</span><br/>
    <div class="greybox wiki-content"><style type='text/css'>/*<![CDATA[*/
div.rbtoc1216911216734 {margin-left: 0px;padding: 0px;}
div.rbtoc1216911216734 ul {list-style: none;margin-left: 0px;}
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/*]]>*/</style><div class='rbtoc1216911216734'>
<ul>
  <li><span class='TOCOutline'>1</span> <a href='#ScalaDSL-EIP-Messagingsystems'>Messaging systems</a>
<ul>
  <li><span class='TOCOutline'>1.1</span> <a href='#ScalaDSL-EIP-Pipeline'>Pipeline <a name="ScalaDSL-EIP-pipeline"></a></a></li>
  <li><span class='TOCOutline'>1.2</span> <a href='#ScalaDSL-EIP-Filter'>Filter <a name="ScalaDSL-EIP-filter"></a></a></li>
</ul></li>
  <li><span class='TOCOutline'>2</span> <a href='#ScalaDSL-EIP-Messagerouting'>Message routing</a>
<ul>
  <li><span class='TOCOutline'>2.1</span> <a href='#ScalaDSL-EIP-Aggregator'>Aggregator</a></li>
  <li><span class='TOCOutline'>2.2</span> <a href='#ScalaDSL-EIP-Contentbasedrouter'>Content based router</a></li>
  <li><span class='TOCOutline'>2.3</span> <a href='#ScalaDSL-EIP-Delayer'>Delayer</a></li>
  <li><span class='TOCOutline'>2.4</span> <a href='#ScalaDSL-EIP-Loadbalancer'>Load balancer</a></li>
  <li><span class='TOCOutline'>2.5</span> <a href='#ScalaDSL-EIP-Multicast'>Multicast</a></li>
  <li><span class='TOCOutline'>2.6</span> <a href='#ScalaDSL-EIP-Recipientlist'>Recipient list</a></li>
  <li><span class='TOCOutline'>2.7</span> <a href='#ScalaDSL-EIP-Resequencer'>Resequencer</a></li>
  <li><span class='TOCOutline'>2.8</span> <a href='#ScalaDSL-EIP-Splitter'>Splitter</a></li>
  <li><span class='TOCOutline'>2.9</span> <a href='#ScalaDSL-EIP-Throttler'>Throttler</a></li>
</ul></li>
  <li><span class='TOCOutline'>3</span> <a href='#ScalaDSL-EIP-Messagetransformation'>Message transformation</a>
<ul>
  <li><span class='TOCOutline'>3.1</span> <a href='#ScalaDSL-EIP-Contentenricher'>Content enricher</a></li>
</ul></li>
  <li><span class='TOCOutline'>4</span> <a href='#ScalaDSL-EIP-TODO'>TODO</a></li>
</ul></div>

<h3><a name="ScalaDSL-EIP-Messagingsystems"></a>Messaging systems</h3>
<h4><a name="ScalaDSL-EIP-Pipeline"></a>Pipeline <a name="ScalaDSL-EIP-pipeline"></a></h4>
<p>There is a simple syntax available for specifying pipeline, by simple putting <tt>to</tt> or <tt>&rarr;</tt> between the different steps in the pipeline.</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"direct:a"</span> --&gt; <span class="code-quote">"mock:a"</span> --&gt; <span class="code-quote">"mock:b"</span>
<span class="code-quote">"direct:c"</span> to <span class="code-quote">"mock:c"</span> to <span class="code-quote">"mock:d"</span></pre>
</div></div>
<p>For more advanced use cases, you can also use a block-based syntax, where every step in the pipeline starts with either <tt>to</tt> or <tt>&rarr;</tt>.</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"direct:e"</span> ==&gt; {
  --&gt; (<span class="code-quote">"mock:e"</span>)
  --&gt; (<span class="code-quote">"mock:f"</span>)
}

<span class="code-quote">"direct:g"</span> ==&gt; {
  to (<span class="code-quote">"mock:g"</span>)
  to (<span class="code-quote">"mock:h"</span>)
}</pre>
</div></div>

<h4><a name="ScalaDSL-EIP-Filter"></a>Filter <a name="ScalaDSL-EIP-filter"></a></h4>
<p>For a message filter, use the <tt>when()</tt> method with a parameter of type The <tt>Exchange &rArr; Boolean</tt>. In the example below, we use a Scala convenience method named <tt>in</tt> to access the 'in' message body; only messages where the 'in' message is <tt>&lt;hello/&gt;</tt> will arrive at the <tt>mock:a</tt> endpoint.</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"direct:a"</span> when(_.in == <span class="code-quote">"&lt;hello/&gt;"</span>) to(<span class="code-quote">"mock:a"</span>)</pre>
</div></div>
<p>Once again, if you need to specify a more advanced route, you can use the more elaborate syntax.</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"direct:b"</span> ==&gt; {
  when(_.in == <span class="code-quote">"&lt;hallo/&gt;"</span>) {
    --&gt; (<span class="code-quote">"mock:b"</span>)
    to (<span class="code-quote">"mock:c"</span>)
  } otherwise {
    to (<span class="code-quote">"mock:e"</span>)
  }
  to (<span class="code-quote">"mock:d"</span>)
}</pre>
</div></div>

<h3><a name="ScalaDSL-EIP-Messagerouting"></a>Message routing</h3>
<h4><a name="ScalaDSL-EIP-Aggregator"></a>Aggregator</h4>
<p>The aggregator EIP aggregates messages based on some message correlation criteria.  In the Scala DSL, the <tt>aggregate</tt> method takes a function <tt>Exchange &rArr; Any</tt> to determine the correlation value for the exchange.  In both samples below, message are being aggregated if the first 7 letters in the message body are the same.</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"direct:a"</span> aggregate (_.in(classOf[<span class="code-object">String</span>]).substring(0, 7)) to <span class="code-quote">"mock:a"</span></pre>
</div></div>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"direct:b"</span> ==&gt; {
  aggregate(_.in(classOf[<span class="code-object">String</span>]).substring(0,7)) {
    to (<span class="code-quote">"mock:b"</span>)
  }
}</pre>
</div></div>

<h4><a name="ScalaDSL-EIP-Contentbasedrouter"></a>Content based router</h4>
<p>Similar to the <a href="#ScalaDSL-EIP-filter" title="filter on Scala DSL - EIP">Filter </a>, the content based router uses <tt>when</tt> methods with <tt>Exchange &rArr; Boolean</tt> function literals and an optional <tt>otherwise</tt>.  The function literal can contain plain Scala code as well as any of the <a href="/confluence/display/CAMEL/Scala+DSL+-+Supported+languages" title="Scala DSL - Supported languages">supported languages </a>.  The example below routes a given message based on the language of the message body.</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"direct:a"</span> ==&gt; {
 to (<span class="code-quote">"mock:polyglot"</span>)
 choice {
    when (_.in == <span class="code-quote">"&lt;hello/&gt;"</span>) to (<span class="code-quote">"mock:english"</span>)
    when (_.in == <span class="code-quote">"&lt;hallo/&gt;"</span>) {
      to (<span class="code-quote">"mock:dutch"</span>)
      to (<span class="code-quote">"mock:german"</span>)
    } 
    otherwise to (<span class="code-quote">"mock:french"</span>)
  }
}</pre>
</div></div>

<h4><a name="ScalaDSL-EIP-Delayer"></a>Delayer</h4>
<p>Unlike a throttler, which only slows down messages if the rate exceeds a treshold, a delayer delays every messages with a fixed amount of time.  An example: to delay every message going from <tt>seda:a</tt> to <tt>mock:a</tt> with 1 second, you write...</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"seda:a"</span> delay(1 seconds) to (<span class="code-quote">"mock:a"</span>)</pre>
</div></div>
<p>Our second example will delay the entire block (containing <tt>mock:c</tt>) without doing anything to <tt>mock:b</tt></p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"seda:b"</span> ==&gt; {
  to (<span class="code-quote">"mock:b"</span>)
  delay(1 seconds) {
    to (<span class="code-quote">"mock:c"</span>)
  }
}</pre>
</div></div>

<h4><a name="ScalaDSL-EIP-Loadbalancer"></a>Load balancer</h4>
<p>To distribute the message handling load over multiple endpoints, we add a <tt>loadbalance</tt> to our route definition.  You can optionally specify a load balancer strategy, like <tt>roundrobin</tt></p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"direct:a"</span> ==&gt; {
  loadbalance roundrobin {
    to (<span class="code-quote">"mock:a"</span>)
    to (<span class="code-quote">"mock:b"</span>)
    to (<span class="code-quote">"mock:c"</span>)
  }
}</pre>
</div></div>

<h4><a name="ScalaDSL-EIP-Multicast"></a>Multicast</h4>
<p>Multicast allows you to send a message to multiple endpoints at the same time.  In a simple route, you can specify multiple targets in the <tt>to</tt> or <tt>&rarr;</tt> method call:</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"direct:a"</span> --&gt; (<span class="code-quote">"mock:a"</span>, <span class="code-quote">"mock:b"</span>) --&gt; <span class="code-quote">"mock:c"</span>
<span class="code-quote">"direct:d"</span> to (<span class="code-quote">"mock:d"</span>, <span class="code-quote">"mock:e"</span>) to <span class="code-quote">"mock:f"</span></pre>
</div></div>
<p>You can also explicitly define an explicit <tt>multicast</tt> in your <tt>RouteBuilder</tt>:</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"direct:a"</span> ==&gt; {
  multicast {
    to (<span class="code-quote">"mock:a"</span>)
    to (<span class="code-quote">"mock:b"</span>)
    to (<span class="code-quote">"mock:c"</span>)
  }
}</pre>
</div></div>

<h4><a name="ScalaDSL-EIP-Recipientlist"></a>Recipient list</h4>
<p>You can handle a static recipient list with a multicast or <a href="#ScalaDSL-EIP-pipeline" title="pipeline on Scala DSL - EIP">pipeline </a>, but this EIP is usually applied when you want to dynamically determine the name(s) of the next endpoint(s) to route to.  Use the <tt>recipients()</tt> method with a function literal (<tt>Exchange =&gt; Any</tt>) that returns the endpoint name(s).  In the example below, the target endpoint name can be found in the String message starting at position 21.</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"direct:a"</span> recipients(_.in(classOf[<span class="code-object">String</span>]).substring(21))</pre>
</div></div>

<p>Because the <tt>recipients()</tt> method just takes a function literal, you can basically use any kind of valid Scala code to determine the endpoint name.  Have a look at the next example which uses pattern matching to figure out where to send the message:</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"direct:b"</span> recipients(_.in match {
  <span class="code-keyword">case</span> Toddler(_) =&gt; <span class="code-quote">"mock:playgarden"</span>
  <span class="code-keyword">case</span> _ =&gt; <span class="code-quote">"mock:work"</span>
})</pre>
</div></div>

<p>Again, we can also use the same thing in a more block-like syntax.  For this example, we use the Scala DSL's <a href="/confluence/display/CAMEL/Scala+DSL+-+Supported+languages" title="Scala DSL - Supported languages">support for JXPath</a> to determine the target.</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"direct:c"</span> ==&gt; {
  to(<span class="code-quote">"mock:c"</span>)
  recipients(_.jxpath(<span class="code-quote">"./in/body/destination"</span>))
}</pre>
</div></div>

<h4><a name="ScalaDSL-EIP-Resequencer"></a>Resequencer</h4>
<p>Use the <tt>resequence</tt> method to add a resequencer to the RouteBuilder.  The method takes a function (<tt>Exchange &rArr; Unit</tt>) that determines the value to resequence on.  In this example, we resequence messages based on the 'in' message body.</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"direct:a"</span> resequence (_.in) to <span class="code-quote">"mock:a"</span></pre>
</div></div>
<p>The same EIP can also be used with a block-like syntax...</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"direct:b"</span> ==&gt; {
  to (<span class="code-quote">"mock:b"</span>)
  resequence (_.in) {
    to (<span class="code-quote">"mock:c"</span>)
  }
}</pre>
</div></div>
<p>... and with configurable batch size.  In this last example, messages will be send to <tt>mock:e</tt> whenever a batch of 5 messages is available.</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"direct:d"</span> ==&gt; {
  to (<span class="code-quote">"mock:d"</span>)
  resequence (_.in) batch(5) apply {
    to (<span class="code-quote">"mock:e"</span>)
  }
}</pre>
</div></div>

<h4><a name="ScalaDSL-EIP-Splitter"></a>Splitter</h4>
<p>To handle large message in smaller chunks, you can write a Scala <tt>Exchange &rArr; Any*</tt> method and add it to your route with the <tt>splitter</tt> method.  As with many other EIPs, we support a short, in-line version as well as a more elaborate block based one.</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"direct:a"</span> as(classOf[Document]) splitter(_.xpath(<span class="code-quote">"/persons/person"</span>)) to <span class="code-quote">"mock:a"</span></pre>
</div></div>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"direct:b"</span> ==&gt; {
  as(classOf[Document])
  splitter(_.xpath(<span class="code-quote">"/persons/person"</span>)) {
    to(<span class="code-quote">"mock:b"</span>)
    to(<span class="code-quote">"mock:c"</span>)
  }
}</pre>
</div></div>
<p>The above examples also show you how <a href="/confluence/display/CAMEL/Scala+DSL+-+Supported+languages" title="Scala DSL - Supported languages">other languages </a> like XPath can be within the Scala DSL.</p>

<h4><a name="ScalaDSL-EIP-Throttler"></a>Throttler</h4>
<p>The throttler allows you to slow down messages before sending them along.  The <tt>throttle</tt> methods allows you to specify the maximum throughput rate of message:</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"seda:a"</span> throttle (3 per 2 seconds) to (<span class="code-quote">"mock:a"</span>)</pre>
</div></div>
<p>It can also be used in front of block to throttle messages at that point.  In the example below, message are passed on to <tt>mock:b</tt> in a normal rate (i.e. as fast as possible), but a maximum 3 messages/2 seconds will arrive at the <tt>mock:c</tt> endpoint.</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"seda:b"</span> ==&gt; {
  to (<span class="code-quote">"mock:b"</span>)
  throttle (3 per 2 seconds) {
    to (<span class="code-quote">"mock:c"</span>)
  }
}</pre>
</div></div>

<h3><a name="ScalaDSL-EIP-Messagetransformation"></a>Message transformation</h3>
<h4><a name="ScalaDSL-EIP-Contentenricher"></a>Content enricher</h4>
<p>Using a processor function (<tt>Exchange &rarr; Unit</tt>), you can alter/enrich the message content.  This example uses a simple function literal to append <tt>" says Hello"</tt> to the message content:</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"direct:a"</span> process(_.in += <span class="code-quote">" says hello"</span>) to (<span class="code-quote">"mock:a"</span>)</pre>
</div></div>
<p>However, you can also define a separate method/function to handle the transformation and pass that to the <tt>process</tt> method instead.  The example below uses pattern matching to enrich the message content:</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"direct:b"</span> process(myProcessor) to (<span class="code-quote">"mock:b"</span>)

def myProcessor(exchange: Exchange) = {
  exchange.in match {
    <span class="code-keyword">case</span> <span class="code-quote">"hello"</span> =&gt; exchange.in = <span class="code-quote">"hello from the UK"</span>
    <span class="code-keyword">case</span> <span class="code-quote">"hallo"</span> =&gt; exchange.in = <span class="code-quote">"hallo vanuit Belgie"</span>
    <span class="code-keyword">case</span> <span class="code-quote">"bonjour"</span> =&gt; exchange.in = <span class="code-quote">"bonjour de la douce France"</span>
  }
}</pre>
</div></div>
<p>Off course, you can also use any other Camel component (e.g. <a href="/confluence/display/CAMEL/Velocity" title="Velocity">Velocity</a>) to enrich the content and add it to a pipeline</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-quote">"direct:c"</span> to (<span class="code-quote">"velocity:org/apache/camel/scala/dsl/enricher.vm"</span>) to (<span class="code-quote">"mock:c"</span>)</pre>
</div></div>

<h3><a name="ScalaDSL-EIP-TODO"></a>TODO</h3>
<p><b>TODO:</b> Create a Scala alternative and example for every EIP available on <span class="nobr"><a href="http://activemq.apache.org/camel/enterprise-integration-patterns.html" title="Visit page outside Confluence" rel="nofollow">http://activemq.apache.org/camel/enterprise-integration-patterns.html<sup><img class="rendericon" src="/confluence/images/icons/linkext7.gif" height="7" width="7" align="absmiddle" alt="" border="0"/></sup></a></span></p>
<ul>
	<li>Message Channel</li>
	<li>Message</li>
	<li>Message Router</li>
	<li>Message Translator</li>
	<li>Message Endpoint</li>
	<li>Point to Point Channel</li>
	<li>Publish Subscribe Channel</li>
	<li>Dead Letter Channel</li>
	<li>Guaranteed Delivery</li>
	<li>Message Bus</li>
	<li>Correlation Identifier</li>
	<li>Aggregator</li>
	<li>Routing Slip</li>
	<li>Content Filter</li>
	<li>Normalizer</li>
	<li>Messaging Mapper</li>
	<li>Event Driven Consumer</li>
	<li>Polling Consumer</li>
	<li>Competing Consumers</li>
	<li>Message Dispatcher</li>
	<li>Selective Consumer</li>
	<li>Durable Subscriber</li>
	<li>Idempotent Consumer</li>
	<li>Transactional Client</li>
	<li>Messaging Gateway</li>
	<li>Service Activator</li>
	<li>Wire Tap</li>
</ul>
</div>


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