Amalka Subasinghe's Blog

Here are the steps to setup DSS and Cassandra integration Setup 1: download and install Cassandra WSO2 DSS 3.5.0 is based on WSO2 Carbon 4.4.2 and Cassandra version 2.0 is recommended WSO2 DSS 3.2.2 is based on WSO2 Carbon 4.2.0 and Cassandra version 2.0 is recommended Step 2: download and install WSO2DSS http://wso2.com/products/data-services-server/ https://docs.wso2.com/display/DSS322/WSO2+Data+Services+Server+Documentation Step 3: configure following operations in DSS Create Key space - UserKS CREATE KEYSPACE UserKS WITH replication = {'class':'SimpleStrategy', 'replication_factor': 1} Create column family - User (id, name, country) CREATE TABLE UserKS.User (id text, name text, country text, PRIMARY KEY (id)) addUser INSERT INTO UserKS.User (id, name, country) values (?,?,?) getUsers SELECT * FROM UserKS.User updateUser UPDATE UserKS.User SET country = ? WHERE id =? deleteUser DELETE FROM UserKS.User WHERE id = ? You can try the abov

When performing some tests on a new proxy service, I observed that in some cases a message store was not accepting more than one message at a time. Here's a brief description of what I was trying to do and what I observed: I have a proxy service that takes messages from a queue, perform an xslt translation on it, then put it in a message store. There is a Message processor that picks up the message from the store and calls a remote web service. Once the the web service returns, I enrich the main message with the result and send it to its final destination. What happened is when messages reached certain size (about 4MB), the web service call was taking about 40 seconds to return results. While the message processor was waiting for the response, nothing else was getting in the message store (see example below). Example: I have 3 messages in the input queue that need to be processed. (A proxy service listens on this queue) Here's what happens.  Step

Steps: WSO2IS 5.0.0 1. Download the source code from https://svn.wso2.org/repos/wso2/carbon/platform/branches/turing/products/is/5.1.0/modules/samples/InfoRecoverySample/ 2. Configure the following in web.xml file a. Specify the "carbonServerUrl" with the URL of the Identity Server. eg: https://localhost:9443 b. Specify the credentials to access Identity Server, "accessUsername" as admin and "accessPassword" as admin. c. Specify the trustStore absolute resource path for "trustStorePath", eg: <IS_HOME> /repository/resources/security/client-truststore.jks 3. Update the following entry in sso.properties file SAML.ConsumerUrl= https://localhost:9443/InfoRecoverySample/home.jsp 4. Exclude the slf4j-api jar from pom.xml file. <dependency>   <groupId> org.wso2.carbon </groupId>   <artifactId> org.wso2.carbon.identity.sso.agent </artifactId>   <version> 1.2.0 </version>   

Prerequisites: Install and configure Active directory with WSO2 IS 5.0.0 http://pavithramadurangi.blogspot.com/2015/01/configuring-ad-in-windows-2012-r2-to-be.html http://social.technet.microsoft.com/wiki/contents/articles/2980.ldap-over-ssl-ldaps-certificate.aspx Steps to configure secondary user store: 1. Login as admin/admin 2. Go to Configure -> User Store Management, Add secondary user store, give the information as shown in the image, click update Refer  https://docs.wso2.com/display/IS500/Configuring+Secondary+User+Stores Verify: 1. The secondary user store configuration should be found at the following location <IS_HOME>/repository/deployment/server/userstores/ADSUS.xml 2. Create a new user in secondary user store and check that user can login to the management console. Go to configure -> User and Roles -> Users -> Add New User (ex: aduser) Select the domain ADSUS and give the user details and Finish Go to Roles and give the lo

Learn WSO2 ESB VFS Transport https://docs.wso2.com/display/ESB481/VFS+Transport When sending or receiving files with VFS transport to a SFTP folder, the specified path is relative to the user home, not a absolute path. Eg:  If the URL is vfs:sftp://user:password@ftp.server.com/myPath, the file will be stored at /home/user/myPath not in /myPath This is how SFTP protocol works. SFTP uses SSH protocol to communicate with the server, so it always log in to the users home directory and then it takes the path relative to the user home directory. That is why this behavior occurs. If you need to access the different location instead of user home Solution 1: This is not supported in WSO2 ESB 4.8.1. So as a workaroud you can mount /myPath to the /home/user/myPath location and then make sure user have access to the /myPath. mount --bind /myPath /home/user/myPath Solution 2: This will be available in next version WSO2 ESB 4.9.0. "sftpPathFromRoot=true" nee

WSO2 ESB includes working examples that demonstrate its features and capabilities. https://docs.wso2.com/display/ESB481/Samples When executing ESB samples, each time we need to restart the ESB server as: Please note: if a given sample required to change axis2.xml file or add some libraries to the ESB, then need to restart the ESB. ./wso2esb-samples.sh -sn 0 https://docs.wso2.com/display/ESB481/Setting+Up+the+ESB+Samples#SettingUptheESBSamples-Startingasample How to run multiple samples without restarting the WSO2 ESB: Solution 1: The simplest way is just copy the configuration from the ESB docs and paste it on ESB source view and update: then it will deploy the new synapse config to the ESB_HOME/repository/deployment/server/synapse-configs/default Solution 2: Create a CAR file and deploy it to the ESB. We can use the WSO2 Developer Studio for create CAR files https://docs.wso2.com/display/DVS371/Packaging+Artifacts+Into+Deployable+Archive

Learn WSO2 ESB VFS Transport https://docs.wso2.com/display/ESB481/VFS+Transport When we need to access the FTP server using SFTP, VFS connection-specific URL need to be given as : <parameter name="transport.vfs.FileURI">vfs:sftp://username:p@ssword@ftp.server.com/filePath?vfs.passive=true</parameter> When the password contains a special characters (eg: p@ssword), it gives the following error. 2015-03-27 13:06:03,766  [-]   [PassThroughMessageProcessor-5]  ERROR VFSTransportSender cannot resolve replyFile org.apache.commons.vfs2.FileSystemException: Invalid absolute URI "sftp://username:***@ftp.server.com/filePath?vfs.passive=true". Solution 1: Replace the special characters with the respective hex representation. <parameter name="transport.vfs.FileURI">vfs:sftp://username:p%40ssword@ftp.server.com/filePath?vfs.passive=true</parameter> Char Hex Code ------- -------- [space] %20 &

WSO2 ESB Mail transport allows you to send a email only with 1 attachment. If you want to send number of attachments here's the solution. Scenario: Here I want to extract some content from the input message and attach to the email as two different attachment. Solution:  You can achieve this requirement using Gmail connector. Steps:  Add the Gmail connector to the ESB and enable it. You can download the esb connector here https://storepreview.wso2.com/store/assets/esbconnector/a1fba975-89fb-4bb0-a1b9-9f9d061fb31c Add it to the ESB and enable it https://docs.wso2.com/display/ESB481/Managing+Connectors+in+Your+ESB+Instance Gmail connector documentation https://docs.wso2.com/display/ESBCONNECTORS/Gmail+Connector Setup the scenario: split the input message and send it with an email using two different attachments. Input message I used <email>         <username>sender@gmail.com</username>         <password>password&