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Using REST Apis in WebCenter : Setup for Linux

REST Apis are available with Oracle WebCenter R1 PS1 (Nov 2009). This post gives informations for installing samples on an existing WebCenter plateform.

REST Samples which are provided on otn site can be installed either with Apache, or with WebLogic Server directly.

Setup For Apache

To avoid cross site scripting errors, you should proxy URL access to the REST service:

 http://<hostname>:<WLSport>/rest/api/resourceIndex

On Apache or Oracle HTTP Server

Depending the current configuration of apache2.conf, it will be needed to setup the Proxy mod by updating the httpd.conf file, and by adding directives for proxying the target url dedicated to REST. In the lines below, replace the port 7001 by the port used by WLS.

Modify httpd.conf by adding the following lines:

LoadModule proxy_module /usr/lib/apache2/modules/mod_proxy.so
LoadModule proxy_ajp_module /usr/lib/apache2/modules/mod_proxy_ajp.so
LoadModule proxy_balancer_module /usr/lib/apache2/modules/mod_proxy_balancer.so
LoadModule proxy_connect_module /usr/lib/apache2/modules/mod_proxy_connect.so
LoadModule proxy_http_module /usr/lib/apache2/modules/mod_proxy_http.so
ProxyPass /rest/ http://wc:7001/rest/
ProxyPassReverse /rest/ http://wc:7001/rest/

Create a new directory in /var/www and unzip the samples in the new directory.

Test: with a browser, enter the url: http://<hostname>:<Apache port>/ext/updatestatus/updateStatus.html

Setup for WebLogic Server

The goal is to use WebLogic Server for serving static HTML files.

create a new folder anywhere (ie: ext) then create a sub-folder named WEB –INF.

Inside the WEB-INF directory, create two files: web.xml and weblogic.xml

web.xml content

<?xml version="1.0" encoding="ISO-8859-1"?>
  <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.
//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>^M
    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
</welcome-file-list>
</web-app>^

weblogic.xml

<!DOCTYPE weblogic-web-app PUBLIC "-//BEA Systems, Inc.
//DTD Web Application 8.1//EN" "http://www.bea.com/servers/wls810/dtd/weblogic 810-web-jar.dtd">
<weblogic-web-app>
     <context-root>/ext</context-root>
</weblogic-web-app>

Declare a new webapp in the Weblogic console

with a browser, go into the wls console : http://<hostname>:<wls port>/console, go to deployment option, than add a new application by navigating to the previous new directory (ext). Then, accept all the default options.

unzip the samples in the ext directory.

Test: http://<hostname>:<WLS_Port>/ext/updatestatus/updateStatus.html

Notes: All the REST Apis samples will ask for credentials by relying on basic Authentication protocol (a popup displayed by the browser).

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