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From conflue...@apache.org
Subject [CONF] Apache Camel: Splitter (page edited)
Date Thu, 09 Apr 2009 08:39:00 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;
}

#foldertab li a:link { color: #ffffff; }
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.blogcalendar th {
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/* permissions page styles */
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/* warning panel */
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/* alert panel */
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/* side menu highlighting (e.g. space content screen) */
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.pagecontent
{
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.topBar {
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/* styles for extended operations */
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{
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.inline-control-link a:link {text-decoration: none}
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div.auto_complete ul {
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div.auto_complete ul strong.highlight {
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/******* Edit Page Styles *******/
.toogleFormDiv{
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    background-color:white;
    padding:5px;
    margin-top: 5px;
}

.toogleInfoDiv{
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.inputSection{
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#editBox{
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/******* Left Navigation Theme Styles ********/
.leftnav li a {
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    color:white;
    margin:0px;
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.leftnav li a:active {color:white;}
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.leftnav li a:hover {background-color: #003366; color:white;}

/* Added by Shaun during i18n */
.replaced
{
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.topPadding
{
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/* new form style */
.form-block {
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.form-error-block {
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    -->
    </style>
</head>
<body>

<div id="PageContent">
<table class="pagecontent" border="0" cellpadding="0" cellspacing="0" width="100%"><tr>
<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/Splitter">Splitter</a>
        </span>
    </div>

     <p>
        <a href="http://cwiki.apache.org/confluence/display/CAMEL/Splitter">Splitter</a>
        has been edited by             <a href="http://cwiki.apache.org/confluence/display/~davsclaus">Claus Ibsen</a>
            <span class="smallfont">(Apr 09, 2009)</span>.
     </p>
    
     <p>
                 <a href="http://cwiki.apache.org/confluence/pages/diffpagesbyversion.action?pageId=49410&originalVersion=31&revisedVersion=32">(View changes)</a>
     </p>

    <span class="label">Content:</span><br/>
    <div class="greybox wiki-content"><h3><a name="Splitter-Splitter"></a>Splitter</h3>

<p>The <span class="nobr"><a href="http://www.enterpriseintegrationpatterns.com/Sequencer.html" title="Visit page outside Confluence" rel="nofollow">Splitter<sup><img class="rendericon" src="/confluence/images/icons/linkext7.gif" height="7" width="7" align="absmiddle" alt="" border="0"/></sup></a></span> from the <a href="/confluence/display/CAMEL/Enterprise+Integration+Patterns" title="Enterprise Integration Patterns">EIP patterns</a> allows you split a message into a number of pieces and process them individually</p>

<p><img src="http://www.enterpriseintegrationpatterns.com/img/Sequencer.gif" align="absmiddle" border="0" /></p>

<p>As of Camel 2.0, you need to specify a Splitter as <tt>split()</tt>. In earlier versions of Camel, you need to use <tt>splitter()</tt>.</p>
<table cellpadding='5' width='85%' cellspacing='8px' class='tipMacro' border="0" align='center'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="/confluence/images/icons/emoticons/check.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td><b class="strong">What does the splitter return?</b><br />
<p>The <a href="/confluence/display/CAMEL/Splitter" title="Splitter">Splitter</a> will by default return the <b>last</b> splitted message. You can override this by suppling your own strategy as an <tt>AggregationStrategy</tt>. There is a sample on this page (Split aggregate request/reply sample). Notice its the same strategy as the <a href="/confluence/display/CAMEL/Aggregator" title="Aggregator">Aggregator</a> supports. This <a href="/confluence/display/CAMEL/Splitter" title="Splitter">Splitter</a> can be viewed as having a build in light weight <a href="/confluence/display/CAMEL/Aggregator" title="Aggregator">Aggregator</a>.</p></td></tr></table>   

<h4><a name="Splitter-Example"></a>Example</h4>

<p>The following example shows how to take a request from the <b>queue:a</b> endpoint the split it into pieces using an <a href="/confluence/display/CAMEL/Expression" title="Expression">Expression</a>, then forward each piece to <b>queue:b</b></p>

<p><b>Using the <a href="/confluence/display/CAMEL/Fluent+Builders" title="Fluent Builders">Fluent Builders</a></b></p>
<div class="code"><div class="codeContent">
<pre class="code-java">RouteBuilder builder = <span class="code-keyword">new</span> RouteBuilder() {
    <span class="code-keyword">public</span> void configure() {
        errorHandler(deadLetterChannel(<span class="code-quote">"mock:error"</span>));

        from(<span class="code-quote">"seda:a"</span>).split(body(<span class="code-object">String</span>.class).tokenize(<span class="code-quote">"\n"</span>)).to(<span class="code-quote">"seda:b"</span>);
    }
};</pre>
</div></div>

<p>The splitter can use any <a href="/confluence/display/CAMEL/Expression" title="Expression">Expression</a> language so you could use any of the <a href="/confluence/display/CAMEL/Languages+Supported" title="Languages Supported">Languages Supported</a> such as <a href="/confluence/display/CAMEL/XPath" title="XPath">XPath</a>, <a href="/confluence/display/CAMEL/XQuery" title="XQuery">XQuery</a>, <a href="/confluence/display/CAMEL/SQL" title="SQL">SQL</a> or one of the <a href="/confluence/display/CAMEL/Scripting+Languages" title="Scripting Languages">Scripting Languages</a> to perform the split. e.g.</p>

<div class="code"><div class="codeContent">
<pre class="code-java">from(<span class="code-quote">"activemq:my.queue"</span>).split(xpath(<span class="code-quote">"<span class="code-comment">//foo/bar"</span>)).convertBodyTo(<span class="code-object">String</span>.class).to(<span class="code-quote">"file://some/directory"</span>)</span></pre>
</div></div>

<p><b>Using the <a href="/confluence/display/CAMEL/Spring+XML+Extensions" title="Spring XML Extensions">Spring XML Extensions</a></b></p>
<div class="code"><div class="codeContent">
<pre class="code-xml"><span class="code-tag">&lt;camelContext errorHandlerRef=<span class="code-quote">"errorHandler"</span> id=<span class="code-quote">"camel"</span> xmlns=<span class="code-quote">"http://camel.apache.org/schema/spring"</span>&gt;</span>
    <span class="code-tag">&lt;route&gt;</span>
        <span class="code-tag">&lt;from uri=<span class="code-quote">"seda:a"</span>/&gt;</span>
        <span class="code-tag">&lt;split&gt;</span>
            <span class="code-tag">&lt;xpath&gt;</span>/invoice/lineItems<span class="code-tag">&lt;/xpath&gt;</span>
            <span class="code-tag">&lt;to uri=<span class="code-quote">"seda:b"</span>/&gt;</span>
        <span class="code-tag">&lt;/split&gt;</span>
    <span class="code-tag">&lt;/route&gt;</span>
<span class="code-tag">&lt;/camelContext&gt;</span></pre>
</div></div>

<p>For further examples of this pattern in use you could look at one of the <span class="nobr"><a href="http://svn.apache.org/viewvc/camel/trunk/camel-core/src/test/java/org/apache/camel/processor/SplitterTest.java?view=markup" title="Visit page outside Confluence" rel="nofollow">junit test case<sup><img class="rendericon" src="/confluence/images/icons/linkext7.gif" height="7" width="7" align="absmiddle" alt="" border="0"/></sup></a></span></p>

<p><b>Using Tokenizer from <a href="/confluence/display/CAMEL/Spring+XML+Extensions" title="Spring XML Extensions">Spring XML Extensions</a></b><br/>
<b>Avaiaible as of Camel 2.0</b></p>

<p>You can use the tokenizer expression in the Spring DSL to split bodies or headers using a token. This is a common use-case, so we provided a special <b>tokenizer</b> tag for this.<br/>
In the sample below we split the body using a @ as separator. You can of course use comma or space or even a regex pattern, also set regex=true.</p>
<div class="code"><div class="codeContent">
<pre class="code-xml"><span class="code-tag">&lt;camelContext id=<span class="code-quote">"camel"</span> xmlns=<span class="code-quote">"http://camel.apache.org/schema/spring"</span>&gt;</span>
    <span class="code-tag">&lt;route&gt;</span>
        <span class="code-tag">&lt;from uri=<span class="code-quote">"direct:start"</span>/&gt;</span>
        <span class="code-tag">&lt;split&gt;</span>
            <span class="code-tag">&lt;tokenize token=<span class="code-quote">"@"</span>/&gt;</span>
            <span class="code-tag">&lt;to uri=<span class="code-quote">"mock:result"</span>/&gt;</span>
        <span class="code-tag">&lt;/split&gt;</span>
    <span class="code-tag">&lt;/route&gt;</span>
<span class="code-tag">&lt;/camelContext&gt;</span></pre>
</div></div>


<h4><a name="Splitter-MessageHeaders"></a>Message Headers</h4>
<p>The following headers is set on each Exchange that are split:</p>
<table class='confluenceTable'><tbody>
<tr>
<th class='confluenceTh'> header </th>
<th class='confluenceTh'> type </th>
<th class='confluenceTh'> description </th>
</tr>
<tr>
<td class='confluenceTd'> <tt>org.apache.camel.splitCounter</tt> </td>
<td class='confluenceTd'> int </td>
<td class='confluenceTd'> Camel 1.x: A split counter that increases for each Exchange being split. The counter starts from 0. </td>
</tr>
<tr>
<td class='confluenceTd'> <tt>org.apache.camel.splitSize</tt> </td>
<td class='confluenceTd'> int </td>
<td class='confluenceTd'> Camel 1.x: The total number of Exchanges that was splitted. This header is not applied for stream based splitting. </td>
</tr>
<tr>
<td class='confluenceTd'> <tt>CamelSplitIndex</tt> </td>
<td class='confluenceTd'> int </td>
<td class='confluenceTd'> Camel 2.0: A split counter that increases for each Exchange being split. The counter starts from 0. </td>
</tr>
<tr>
<td class='confluenceTd'> <tt>CamelSplitSize</tt> </td>
<td class='confluenceTd'> int </td>
<td class='confluenceTd'> Camel 2.0: The total number of Exchanges that was splitted. This header is not applied for stream based splitting. </td>
</tr>
</tbody></table>

<h4><a name="Splitter-Parallelexecutionofdistinct%27parts%27"></a>Parallel execution of distinct 'parts'</h4>

<p>If you want to execute all parts in parallel you can use special notation of <tt>split()</tt> with two arguments, where the second one is a <b>boolean</b> flag if processing should be parallel. e.g.</p>

<div class="code"><div class="codeContent">
<pre class="code-java">XPathBuilder xPathBuilder = <span class="code-keyword">new</span> XPathBuilder(<span class="code-quote">"<span class="code-comment">//foo/bar"</span>); 
</span>from(<span class="code-quote">"activemq:my.queue"</span>).split(xPathBuilder, <span class="code-keyword">true</span>).to(<span class="code-quote">"activemq:my.parts"</span>);</pre>
</div></div>

<p>In <b>Camel 2.0</b> the boolean option has been refactored into a builder method <tt>parallelProcessing</tt> so its easier to understand what the route does when we use a method instead of true|false.</p>
<div class="code"><div class="codeContent">
<pre class="code-java">XPathBuilder xPathBuilder = <span class="code-keyword">new</span> XPathBuilder(<span class="code-quote">"<span class="code-comment">//foo/bar"</span>); 
</span>from(<span class="code-quote">"activemq:my.queue"</span>).split(xPathBuilder).parallelProcessing().to(<span class="code-quote">"activemq:my.parts"</span>);</pre>
</div></div>

<h4><a name="Splitter-Streambased"></a>Stream based</h4>
<p><b>Available as of Camel 1.5</b></p>

<p>You can split streams by enabling the streaming mode using the <tt>streaming</tt> builder method.</p>
<div class="code"><div class="codeContent">
<pre class="code-java">from(<span class="code-quote">"direct:streaming"</span>).split(body().tokenize(<span class="code-quote">","</span>)).streaming().to(<span class="code-quote">"activemq:my.parts"</span>);</pre>
</div></div>

<h4><a name="Splitter-Specifyingacustomaggregationstrategy"></a>Specifying a custom aggregation strategy </h4>
<p><b>Available as of Camel 2.0</b></p>

<p>This is specified similar to the <a href="/confluence/display/CAMEL/Aggregator" title="Aggregator">Aggregator</a>.</p>

<h4><a name="Splitter-SpecifyingacustomThreadPoolExecutor"></a>Specifying a custom ThreadPoolExecutor</h4>

<p>You can customize the underlying ThreadPoolExecutor used in the parallel splitter. In the Java DSL try something like this:</p>

<div class="code"><div class="codeContent">
<pre class="code-java">XPathBuilder xPathBuilder = <span class="code-keyword">new</span> XPathBuilder(<span class="code-quote">"<span class="code-comment">//foo/bar"</span>); 
</span>ThreadPoolExecutor threadPoolExecutor = <span class="code-keyword">new</span> ThreadPoolExecutor(8, 16, 0L, TimeUnit.MILLISECONDS, <span class="code-keyword">new</span> LinkedBlockingQueue());
from(<span class="code-quote">"activemq:my.queue"</span>).split(xPathBuilder, <span class="code-keyword">true</span>, threadPoolExecutor).to(<span class="code-quote">"activemq:my.parts"</span>);</pre>
</div></div>

<p>In the Spring DSL try this:</p>

<p><b>Available as of Camel 1.6.0</b></p>
<div class="code"><div class="codeContent">
<pre class="code-xml"><span class="code-tag">&lt;camelContext id=<span class="code-quote">"camel"</span> xmlns=<span class="code-quote">"http://camel.apache.org/schema/spring"</span>&gt;</span>
  <span class="code-tag">&lt;route&gt;</span>
    <span class="code-tag">&lt;from uri=<span class="code-quote">"direct:parallel-custom-pool"</span>/&gt;</span>
    <span class="code-tag">&lt;split threadPoolExecutorRef=<span class="code-quote">"threadPoolExecutor"</span>&gt;</span>
      <span class="code-tag">&lt;xpath&gt;</span>/invoice/lineItems<span class="code-tag">&lt;/xpath&gt;</span>
      <span class="code-tag">&lt;to uri=<span class="code-quote">"mock:result"</span>/&gt;</span>
    <span class="code-tag">&lt;/split&gt;</span>
  <span class="code-tag">&lt;/route&gt;</span>
<span class="code-tag">&lt;/camelContext&gt;</span>

&lt;!-- There's an easier way of specifying constructor args, just can't remember it
     at the moment... old Spring syntax will do for now! --&gt;
<span class="code-tag">&lt;bean id=<span class="code-quote">"threadPoolExecutor"</span> class=<span class="code-quote">"java.util.concurrent.ThreadPoolExecutor"</span>&gt;</span>
  <span class="code-tag">&lt;constructor-arg index=<span class="code-quote">"0"</span> value=<span class="code-quote">"8"</span>/&gt;</span>
  <span class="code-tag">&lt;constructor-arg index=<span class="code-quote">"1"</span> value=<span class="code-quote">"16"</span>/&gt;</span>
  <span class="code-tag">&lt;constructor-arg index=<span class="code-quote">"2"</span> value=<span class="code-quote">"0"</span>/&gt;</span>
  <span class="code-tag">&lt;constructor-arg index=<span class="code-quote">"3"</span> value=<span class="code-quote">"MILLISECONDS"</span>/&gt;</span>
  <span class="code-tag">&lt;constructor-arg index=<span class="code-quote">"4"</span>&gt;</span><span class="code-tag">&lt;bean class=<span class="code-quote">"java.util.concurrent.LinkedBlockingQueue"</span>/&gt;</span><span class="code-tag">&lt;/constructor-arg&gt;</span>
<span class="code-tag">&lt;/bean&gt;</span></pre>
</div></div>

<h4><a name="Splitter-UsingaPojotodothesplitting"></a>Using a Pojo to do the splitting</h4>
<p>As the <a href="/confluence/display/CAMEL/Splitter" title="Splitter">Splitter</a> can use any <a href="/confluence/display/CAMEL/Expression" title="Expression">Expression</a> to do the actual splitting we leverage this fact and use a <b>method</b> expression to invoke a <a href="/confluence/display/CAMEL/Bean" title="Bean">Bean</a> to get the splitted parts.<br/>
The <a href="/confluence/display/CAMEL/Bean" title="Bean">Bean</a> should return a value that is iterable such as: <tt>java.util.Collection, java.util.Iterator</tt> or an array. </p>

<p>In the route we define the <a href="/confluence/display/CAMEL/Expression" title="Expression">Expression</a> as a method call to invoke our <a href="/confluence/display/CAMEL/Bean" title="Bean">Bean</a> that we have registered with the id mySplitterBean in the <a href="/confluence/display/CAMEL/Registry" title="Registry">Registry</a>.</p>
<div class="code"><div class="codeContent">
<pre class="code-java">from(<span class="code-quote">"direct:start"</span>)
        <span class="code-comment">// here we use a POJO bean mySplitterBean to <span class="code-keyword">do</span> the split of the payload
</span>        .split().method(<span class="code-quote">"mySplitterBean"</span>)
        .to(<span class="code-quote">"mock:result"</span>);</pre>
</div></div>

<p>And the logic for our <a href="/confluence/display/CAMEL/Bean" title="Bean">Bean</a> is as simple as. Notice we use Camel <a href="/confluence/display/CAMEL/Bean+Binding" title="Bean Binding">Bean Binding</a> to pass in the message body as a String object. </p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-keyword">public</span> class MySplitterBean {

    /**
     * The split method returns something that is iteratable such as a java.util.List.
     *
     * @param body the payload of the incoming message
     * @<span class="code-keyword">return</span> a list containing each part splitted
     */
    <span class="code-keyword">public</span> List split(<span class="code-object">String</span> body) {
        <span class="code-comment">// since <span class="code-keyword">this</span> is based on an unit test you can of couse
</span>        <span class="code-comment">// use different logic <span class="code-keyword">for</span> splitting as Camel have out
</span>        <span class="code-comment">// of the box support <span class="code-keyword">for</span> splitting a <span class="code-object">String</span> based on comma
</span>        <span class="code-comment">// but <span class="code-keyword">this</span> is <span class="code-keyword">for</span> show and tell, since <span class="code-keyword">this</span> is java code
</span>        <span class="code-comment">// you have the full power how you like to split your messages
</span>        List answer = <span class="code-keyword">new</span> ArrayList();
        <span class="code-object">String</span>[] parts = body.split(<span class="code-quote">","</span>);
        <span class="code-keyword">for</span> (<span class="code-object">String</span> part : parts) {
            answer.add(part);
        }
        <span class="code-keyword">return</span> answer;
    }
}</pre>
</div></div>

<h4><a name="Splitter-Splitaggregaterequest%2Freplysample"></a>Split aggregate request/reply sample</h4>
<p>This sample shows how you can split an <a href="/confluence/display/CAMEL/Exchange" title="Exchange">Exchange</a>, process each splitted message, aggregate and return a combined response to the original caller using request/reply.</p>

<p>The route below illustrates this and how the split supports a <b>aggregationStrategy</b> to hold the in progress processed messages:</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-comment">// <span class="code-keyword">this</span> routes starts from the direct:start endpoint
</span><span class="code-comment">// the body is then splitted based on @ separator
</span><span class="code-comment">// the splitter in Camel supports InOut as well and <span class="code-keyword">for</span> that we need
</span><span class="code-comment">// to be able to aggregate what response we need to send back, so we provide our
</span><span class="code-comment">// own strategy with the class MyOrderStrategy.
</span>from(<span class="code-quote">"direct:start"</span>)
    .split(body().tokenize(<span class="code-quote">"@"</span>), <span class="code-keyword">new</span> MyOrderStrategy())
        <span class="code-comment">// each splitted message is then send to <span class="code-keyword">this</span> bean where we can process it
</span>        .to(<span class="code-quote">"bean:MyOrderService?method=handleOrder"</span>)
        <span class="code-comment">// <span class="code-keyword">this</span> is important to end the splitter route as we <span class="code-keyword">do</span> not want to <span class="code-keyword">do</span> more routing
</span>        <span class="code-comment">// on each splitted message
</span>    .end()
    <span class="code-comment">// after we have splitted and handled each message we want to send a single combined
</span>    <span class="code-comment">// response back to the original caller, so we let <span class="code-keyword">this</span> bean build it <span class="code-keyword">for</span> us
</span>    <span class="code-comment">// <span class="code-keyword">this</span> bean will receive the result of the aggregate strategy: MyOrderStrategy
</span>    .to(<span class="code-quote">"bean:MyOrderService?method=buildCombinedResponse"</span>)</pre>
</div></div>

<p>And the OrderService bean is as follows:</p>
<div class="code"><div class="codeContent">
<pre class="code-java"><span class="code-keyword">public</span> <span class="code-keyword">static</span> class MyOrderService {

    <span class="code-keyword">private</span> <span class="code-keyword">static</span> <span class="code-object">int</span> counter;

    /**
     * We just handle the order by returning a id line <span class="code-keyword">for</span> the order
     */
    <span class="code-keyword">public</span> <span class="code-object">String</span> handleOrder(<span class="code-object">String</span> line) {
        LOG.debug(<span class="code-quote">"HandleOrder: "</span> + line);
        <span class="code-keyword">return</span> <span class="code-quote">"(id="</span> + ++counter + <span class="code-quote">",item="</span> + line + <span class="code-quote">")"</span>;
    }

    /**
     * We use the same bean <span class="code-keyword">for</span> building the combined response to send
     * back to the original caller
     */
    <span class="code-keyword">public</span> <span class="code-object">String</span> buildCombinedResponse(<span class="code-object">String</span> line) {
        LOG.debug(<span class="code-quote">"BuildCombinedResponse: "</span> + line);
        <span class="code-keyword">return</span> <span class="code-quote">"Response["</span> + line + <span class="code-quote">"]"</span>;
    }
}</pre>
</div></div>

<p>And our custom <b>aggregationStrategy</b> that is responsible for holding the in progress aggregated message that after the splitter is ended will be sent to the <b>buildCombinedResponse</b> method for final processing before the combined response can be returned to the waiting caller.</p>
<div class="code"><div class="codeContent">
<pre class="code-java">/**
 * This is our own order aggregation strategy where we can control
 * how each splitted message should be combined. As we <span class="code-keyword">do</span> not want to
 * loos any message we copy from the <span class="code-keyword">new</span> to the old to preserve the
 * order lines as <span class="code-object">long</span> we process them
 */
<span class="code-keyword">public</span> <span class="code-keyword">static</span> class MyOrderStrategy <span class="code-keyword">implements</span> AggregationStrategy {

    <span class="code-keyword">public</span> Exchange aggregate(Exchange oldExchange, Exchange newExchange) {
        <span class="code-comment">// put order together in old exchange by adding the order from <span class="code-keyword">new</span> exchange
</span>
        <span class="code-comment">// copy from OUT as we use InOut pattern
</span>        <span class="code-object">String</span> orders = oldExchange.getOut().getBody(<span class="code-object">String</span>.class);
        <span class="code-object">String</span> newLine = newExchange.getOut().getBody(<span class="code-object">String</span>.class);

        LOG.debug(<span class="code-quote">"Aggregate old orders: "</span> + orders);
        LOG.debug(<span class="code-quote">"Aggregate <span class="code-keyword">new</span> order: "</span> + newLine);

        <span class="code-comment">// put orders together separating by semi colon
</span>        orders = orders + <span class="code-quote">";"</span> + newLine;
        <span class="code-comment">// put combined order back on old to preserve it
</span>        oldExchange.getOut().setBody(orders);

        <span class="code-comment">// <span class="code-keyword">return</span> old as <span class="code-keyword">this</span> is the one that has all the orders gathered until now
</span>        <span class="code-keyword">return</span> oldExchange;
    }
}</pre>
</div></div>

<p>So lets run the sample and see how it works.<br/>
We send an <a href="/confluence/display/CAMEL/Exchange" title="Exchange">Exchange</a> to the <b>direct:start</b> endpoint containing a IN body with the String value: <tt>A&#64;B&#64;C</tt>. The flow is:</p>
<div class="code"><div class="codeContent">
<pre class="code-java">HandleOrder: A
HandleOrder: B
Aggregate old orders: (id=1,item=A)
Aggregate <span class="code-keyword">new</span> order: (id=2,item=B)
HandleOrder: C
Aggregate old orders: (id=1,item=A);(id=2,item=B)
Aggregate <span class="code-keyword">new</span> order: (id=3,item=C)
BuildCombinedResponse: (id=1,item=A);(id=2,item=B);(id=3,item=C)
Response to caller: Response[(id=1,item=A);(id=2,item=B);(id=3,item=C)]</pre>
</div></div>


<h4><a name="Splitter-UsingThisPattern"></a>Using This Pattern</h4>

<p>If you would like to use this EIP Pattern then please read the <a href="/confluence/display/CAMEL/Getting+Started" title="Getting Started">Getting Started</a>, you may also find the <a href="/confluence/display/CAMEL/Architecture" title="Architecture">Architecture</a> useful particularly the description of <a href="/confluence/display/CAMEL/Endpoint" title="Endpoint">Endpoint</a> and <a href="/confluence/display/CAMEL/URIs" title="URIs">URIs</a>. Then you could try out some of the <a href="/confluence/display/CAMEL/Examples" title="Examples">Examples</a> first before trying this pattern out.</p></div>


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