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Migrating from WSO2 ESB 5.0 to WSO2 EI 7.1

This guide provides the recommended strategy for migrating from WSO2 ESB 5.0 to the Micro Integrator of WSO2 EI 7.1.

Why migrate to EI 7.1?

Listed below are some of the advantages of moving to EI 7.1 from the ESB.

  • The Micro Integrator of EI 7.1 is now the most improved version of the battle-tested WSO2 ESB runtime.

    Tip

    WSO2 ESB 5.0, the ESB profile of WSO2 EI 6.x, as well as the Micro Integrator of WSO2 EI 7.x contains versions of the same WSO2 ESB runtine.

  • All the ESB runtimes of WSO2 can use the same developer tool (WSO2 Integration Studio) for developing integrations.

  • All the integration capabilities that you used in the ESB can be used in the Micro Integrator with minimal changes.

  • The Micro Integrator contains improvements to ease your product experience.

    Note

    The most significant change in EI 7.1 is the Toml-based configuration strategy, which replaces the XML configurations in previous versions of the ESB runtime. Some of the features are removed from WSO2 Micro Integrator as they are not frequently used.

Migration from WSO2 ESB is recommended for the following requirements:

  • You need to switch to a microservices architecture from the conventional centralized architecture.
  • You need a more lightweight, user-friendly version of the battle-tested WSO2 ESB.
  • You need a more lightweight, container-friendly runtime in a centralized architecture.
  • You need native support for Kubernetes.

Before you begin

Note the following:

  • Ports are different in the Micro Integrator of EI 7.1.0. Find out about ports in the Micro Integrator.

  • The Micro Integrator of EI 7.1 contains changes that will impact your migration process. Be sure to read the following resources before you start.

  • Note that EI 7.x is a WUM-only release, which means that manual patches are not allowed. You can use WSO2 Update Manager(WUM) to get the latest fixes or updates for this release..

  • If you are migrating from a version older than WSO2 ESB 5.0.0, you should first migrate to ESB 5.0.0 and then migrate to the Micro Integrator of EI 7.1.0.

  • The distribution folder structure has changed from ESB 5.0.0 to EI 7.1:
    WSO2 ESB 5.0.0 Micro Integrator of EI 7.1.0
    /repository/conf /conf
    /repository/components/dropins /dropins
    /repository/components/extensions /extensions
    /repository/components/lib /lib
    /repository/components/plugins /wso2/components/plugins

Migrating to the Micro Integrator

Follow the instructions below to start the migration!

Set up the migration

  • Make a backup of the ESB 5.0 distribution (<ESB_5.0.0_HOME> folder) to back up the product configurations.
  • Make a backup of the database used by the current ESB 5.0 deployment. This backup is necessary in case the migration causes any issues in the existing database.

  • Download and install EI 7.1 in your environment:

    Tip

    The home directory of your Micro Integrator will be referred to as <MI_HOME> from hereon.

  • Use WSO2 Update Manager to get the latest available updates for your EI 7.1 distribution.

    Info

    Note that you need a valid WSO2 subscription to use updates in a production environment.

Migrating the user store

If you are already using a JDBC or LDAP as the primary user store of your ESB 5.0, you can simply connect the same to the Micro Integrator.

Note that secondary user stores are currently not supported in the Micro Integrator of EI 7.1.0.

Before you begin

Read about users and roles in the Micro Integrator and about how they function. Note the following important facts:

  • Users in the Micro Intgrator are categorized as admin users and non-admin users.
  • All admin users in your existing ESB user store will function as admin users in the Micro integrator.
  • Tenant admins are no longer valid because the Micro Integrator does not support multitenancy.

To connect the Micro Integrator to the primary user store:

  1. Open the deployment.toml file of your Micro Integrator.

  2. Note that you have the [user_store] section enabled by default.

    [user_store]
type = "read_only_ldap"

  3. Update the [user_store] section and other configurations as given below.

    [user_store]
type = "database"
read_only = "false"

[[datasource]]
id = "WSO2_USER_DB"
url= "jdbc:mysql://localhost:3306/userdb"
username="root"
password="root"
driver="com.mysql.jdbc.Driver"

[realm_manager]
data_source = "WSO2_USER_DB"

[internal_apis.file_user_store]
enable = false
    [user_store]
connection_url = "ldap://localhost:10389"  
connection_name = "uid=admin,ou=system"
connection_password = "admin"  
user_search_base = "ou=Users,dc=wso2,dc=org"
type = "read_only_ldap"

[internal_apis.file_user_store]
enable = false
    [user_store]
connection_url = "ldap://localhost:10389"  
connection_name = "uid=admin,ou=system"
connection_password = "admin"  
user_search_base = "ou=Users,dc=wso2,dc=org"
type = "read_write_ldap"

[internal_apis.file_user_store]
enable = false

  4. If your user store is an RDBMS, be sure to add the client JAR of your RDBMS to the <MI_HOME>/lib folder.

See the instructions on configuring a user store for more information.

Migrating the registry

Before you begin

Note the following:

  • Your ESB 5.0 registry may have the following partitions: Local, Config, and Gov. However, you only need to migrate the Config and Gov registry partitions. See the instructions on configuring registry partitions in the Micro Integrator.
  • Message processor tasks stored in the registry should be stored with a new naming convention in the Micro Integrator. Therefore, all entries in the registry with the MSMP prefix (which correspond to message processor tasks) should not be migrated to the Micro Integrator. New entries will be automatically created when you start the Micro Integrator server.
  • If you have shared the registry of ESB 5.0 among multiple nodes, you can do the same for the file-based registry of EI 7.1. However, note that registry mounting/sharing is only required for persisting message processor states among nodes of EI 7.1.

The Micro Integrator uses a file-based registry instead of a database (which is used in ESB 5.0). Follow the guidelines given below when you migrate the registry artifacts.

  • If the registry resources in ESB 5.0 are added via carbon applications developed using WSO2 Integration Studio, you can directly migrate the artifacts to the Micro Integrator of EI 7.1. Copy the carbon applications from the <ESB_5.0.0_HOME>/repository/deployment/server/carbonapps folder to the <MI_HOME>/repository/deployment/server/carbonapps folder.

  • If the registry resources are added through the management console in ESB 5.0, you need to convert them to a Registry Resources module in WSO2 Integration Studio and deploy them via a Carbon Application.

    Known Issues

    A registry migration using this method is currently not possible due to the known issues listed below. Please contact WSO2 if you require a registry migration.

    Use one of the following approaches:

    • Checkout the Registry Resources from the ESB 5.0 server directly into the Registry Resources module in WSO2 Integration Studio.
    • Download the Registry Resources from ESB 5.0 and import them into the Registry Resources module in WSO2 Integration Studio.

    Note

    Once you have imported the Registry Resources into WSO2 Integration Studio, open the resource editor and make sure that the media type of the resource is set properly. Registry Resource Editor

  • If you have encrypted data in the ESB 5.0 registry, follow the instructions in migrating passwords.

Migrating integration artifacts

Before you begin

Note that the following changes are effective in the Micro Integrator of EI 7.1 when you migrate from WSO2 ESB 5.0.0 to the Micro Integrator.

Removed mediators

The following mediators and artifacts are removed in the ESB/Micro Integrator runtime after ESB 5.0.0.

  • Priority Executors
  • Enqueue Mediator
  • Bean Mediator
  • POJO Command Mediator
  • Spring Mediator
  • Conditional Router Mediator
  • In, Out Mediators
  • Event Mediator
  • In memory Topics
  • Router Mediator
  • Publish Event Mediator
Message mediation
  • If you have used the $ctx function inline (in the Payload Factory mediator) to get property values, you need to change this to the full XPath. The $ctx function or the get-property() function can be used inside the argument (args) tags to get property values.
  • The XSLT mediator writes response messages to the JSON stream. In ESB versions prior to EI 6.4.0, the XSLT mediator was not doing any changes to the JSON stream after message transformation.
  • There are validations affecting the Enrich mediator, which prevents the source and target in the message body.
  • If you have specified an XPath value in your mediation sequence, the response message generated by the ESB will include the element tags of your XPath value. For example, if your XPath value is "//faultdescription", the response message will be <faultdescription>DESCRIPTION</faultdescription>. If you want the response message to contain only the DESCRIPTION, you need to specify the XPath value as "//faultdescription/text()".
  • If you are using the MailTo transport to send emails through a mediation sequence, note that the email sender specified in the mediation sequence overrides the email sender configured in the Micro Integrator configurations.
HTTP content negotiation

HTTP content negotiation is enabled in the Micro Integrator by default. This setting transforms the message (at the time of building the message) according to the content type specified using the 'Accept' header of the request message. You can disable this behavior by updating the deployment.toml file as shown below. 

[server]
hostname = "localhost"
http_content_negotiation = true

The recommended way to create integration artifacts (in ESB 5.0 or EI 7.x ) is to use WSO2 Integration Studio:

  • If the artifacts are created in the recommended way, copy the CAR files inside <ESB_5.0.0_HOME>/repository/deployment/server/carbonapps to the <MI_HOME>/repository/deployment/server/carbonapps folder.

    Changed package names

    Note that some of the class names of packages used inside your integration artifacts have changed in the Micro Integrator.

    For example, if you have used a Token Store when applying security policy to a proxy service in the ESB, the token store class has changed from org.wso2.carbon.security.util.SecurityTokenStore to org.wso2.micro.integrator.security.extensions.SecurityTokenStore in the Micro Integrator.

    Therefore, these artifacts have to be updated with the correct class name and packaged into a new CAR file before migration.

  • If you have a custom mediator packed in a CAR, do one of the following:

    • Include all the artifacts (using that mediator) in the same CAR.
    • Alternatively, you can add the JAR of the mediator to the <MI_HOME>/lib/dropins folder so that it can be shared by artifacts in multiple CARs.
  • If the artifacts are created using the management console of ESB 5.0, you need to recreate them using WSO2 Integration Studio and package them as a composite application. See the instructions on packaging artifacts.

Tip

For testing purposes, you can copy the artifacts to the same folder structure inside the <MI_HOME>/repository/deployment/server/synapse-configs/default directory.

Migrating deployed Connectors

  • If the connector is added to ESB 5.0 via a composite application with the Connector Exporter Project, the same can be used in EI 7.1 seamlessly. Simply copy the CAR file in ESB 5.0 to the <MI_HOME>/repository/deployment/server/carbonapps folder.
  • If the connector is added to ESB 5.0 via the management console, pack them using the Connector Exporter Project and deploy via a composite application in EI 7.1.

Migrating custom components

Copy custom OSGI components in the <ESB_5.0.0_HOME>/repository/components/dropins folder to the <MI_HOME>/dropins folder. If you have custom JARs in the <ESB_5.0.0_HOME>/repository/components/lib folder, copy those components to the <MI_HOME>/lib directory.

Note

  • To provide seamless integration with RabbitMQ, the Rabbitmq client lib is included in the Micro Integrator by default. Hence, you don't need to manually add any RabbitMQ components.
  • WSO2 EI no longer packs the VFS/SMB provider by default. If you need to use the VFS SMB feature, download jcifs-1.3.17.jar and add it to the <MI_HOME/lib folder. Since this library is licensed under LGPL version 2.1, you have to comply with the terms of LGPL version 2.1 and its restrictions.
  • If you used an HL7 Message Store (custom message store) implementation, note that the Micro Integrator does not support this functionality. See the list of removed features for details.

Migrating tenants

Multitenancy within one JVM is not supported in the Micro Integrator of EI 7.1. Therefore, if you used multiple tenants in your ESB deployment, you can replicate the set up in EI 7.1 by using separate Micro Integrator nodes.

Migrating keystores

Copy the JKS files from the <ESB_5.0.0_HOME>/repository/resources/security folder to the <MI_HOME>/repository/resources/security folder.

Migrating configurations

Before you begin

Note the following:

  • Configuration management was handled in WSO2 ESB 5.0 versions via multiple files such as carbon.xml, synapse.properties, axis2.xml, etc.
  • Micro Integrator of EI 7.1 provides a new configuration model where most of the product configurations are managed by a single configuration file named deployment.toml (stored in the <MI_HOME>/conf directory).
  • Log configurations are managed with log4j2 (whereas the ESB 5.0 used log4j), which are configured in the log4j2.properties file.

The following sections of this document will guide you to migrate the product configurations including log4j.

Migrating to TOML configurations

Tip

If you have a WSO2 subscription, it is highly recommended to reach WSO2 Support before attempting to proceed with the configuration migration.

Given below are main configurations that have changed in the Micro integrator. Expand the sections to find the TOML configurations corresponding to the XML configurations.

Clustering configurations

In the Micro Integrator, you don't need to enable clustering as you did with previous ESB versions. Instead, you need to configure all nodes in the cluster to coordinate through an RDBMS. Find out more about cluster coordination.

<clustering class="org.wso2.carbon.core.clustering.hazelcast.HazelcastClusteringAgent"
                enable="true">
<parameter name="clusteringPattern">nonWorkerManager</parameter>
</clustering>
# Cluster coordination database connection.
[[datasource]]
id = "WSO2_COORDINATION_DB"
url= "jdbc:mysql://localhost:3306/clusterdb"
username="root"
password="root"
driver="com.mysql.jdbc.Driver"

# Identifying nodes in the cluster.
[cluster_config]
node_id = "node-1"

Find more parameters.

Analytics configurations

If you used EI Analytics with your ESB, you have configured the following to be able to publish statistics to the Analytics server.

  • <ESB_HOME>/repository/deployment/server/eventpublishers/MessageFlowConfigurationPublisher.xml
  • <ESB_HOME>/repository/deployment/server/eventpublishers/MessageFlowStatisticsPublisher.xml

If you using EI Analytics with your new Micro Integrator solution, you can follow the instructions in Setting up the EI Analytics Profile for Observability.

Given below are some of the most critical XML configuraton files in ESB 5.0. Expand each section to find the TOML configurations corresponding to the XML configurations in the file.

carbon.xml

  • Hostname

    <HostName>www.wso2.org</HostName>
    [server]
hostname = "www.wso2.org"

    Find more parameters.

  • Port offset

    <Ports>
    <Offset>1</Offset>
</Ports>
    [server]
offset  = 0

    Find more parameters.

  • Primary keystore

    <Security>
    <KeyStore>            
        <Location>${carbon.home}/repository/resources/security/wso2carbon.jks</Location>
        <Type>JKS</Type>
        <Password>wso2carbon</Password>
        <KeyAlias>wso2carbon</KeyAlias>
        <KeyPassword>wso2carbon</KeyPassword>
    </KeyStore>
</Security>
    [keystore.primary]
file_name = "wso2carbon.jks"
type = "JKS"
password = "wso2carbon"
alias = "wso2carbon"
key_password = "wso2carbon"

    Find more parameters.

  • Internal keystore

    <InternalKeyStore>
     <Location>${carbon.home}/repository/resources/security/wso2carbon.jks</Location>
        <Type>JKS</Type>
        <Password>wso2carbon</Password>
        <KeyAlias>wso2carbon</KeyAlias>
       <KeyPassword>wso2carbon</KeyPassword>
</InternalKeyStore>
    [keystore.internal]
file_name = "wso2carbon.jks"
type = "JKS"
password = "wso2carbon"
alias = "wso2carbon"
key_password = "wso2carbon"

    Find more parameters.

  • Truststore

    <TrustStore>
    <Location>${carbon.home}/repository/resources/security/client-truststore.jks</Location>
    <Type>JKS</Type>
    <Password>wso2carbon</Password>
</TrustStore>
    [truststore]
file_name = "client-truststore.jks"  
type = "JKS"                        
password = "wso2carbon"            
alias = "symmetric.key.value"      
algorithm = "AES"

    Find more parameters.

user-mgt.xml

  • Admin user

    <Realm>
    <Configuration>
        <AdminRole>admin</AdminRole>
        <AdminUser>                
            <UserName>admin</UserName>                
            <Password>admin</Password>
        </AdminUser>
    </Configuration>
</Realm>
    [super_admin]
username = "admin"              # inferred
password = "admin"              # inferred
admin_role = "admin"            # inferred

  • User datasource

    <Realm>
    <Configuration>
         <Property name="isCascadeDeleteEnabled">true</Property>
         <Property name="dataSource">jdbc/WSO2CarbonDB</Property>
    </Configuration>
</Realm>
    [realm_manager]
data_source = "WSO2CarbonDB"       
properties.isCascadeDeleteEnabled = true

  • LDAP userstore

    <UserStoreManager class="org.wso2.carbon.user.core.ldap.ReadOnlyLDAPUserStoreManager">
    <Property name="TenantManager">org.wso2.carbon.user.core.tenant.CommonHybridLDAPTenantManager</Property>
    <Property name="ConnectionURL">ldap://localhost:10389</Property>
    <Property name="ConnectionName">uid=admin,ou=system</Property>
</UserStoreManager>
    [internal_apis.file_user_store]
enable = false

[user_store]
type = "read_only_ldap" # inferred default read_only_ldap # OR  read_write_ldap
class = "org.wso2.micro.integrator.security.user.core.ldap.ReadOnlyLDAPUserStoreManager" # inferred
connection_url = "ldap://localhost:10389"   #inferred
connection_name = "uid=admin,ou=system"   #inferred

    Find more parameters.

  • JDBC userstore

     <UserStoreManager class="org.wso2.carbon.user.core.jdbc.JDBCUserStoreManager">
    <Property name="TenantManager">org.wso2.carbon.user.core.tenant.JDBCTenantManager</Property>
 </UserStoreManager>
    [internal_apis.file_user_store]
enable = false

[user_store]
class = "org.wso2.micro.integrator.security.user.core.jdbc.JDBCUserStoreManager"
type = "database"
master-datasource.xml

Carbon database (WSO2_CARBON_DB).

<datasource>
    <name>WSO2_CARBON_DB</name>
    <description>The datasource used for registry and user manager</description>
    <jndiConfig>
        <name>jdbc/WSO2CarbonDB</name>
    </jndiConfig>
    <definition type="RDBMS">
        <configuration>
            <url>jdbc:h2:./repository/database/WSO2CARBON_DB;DB_CLOSE_ON_EXIT=FALSE;LOCK_TIMEOUT=60000</url>
            <username>wso2carbon</username>
            <password>wso2carbon</password>
            <driverClassName>org.h2.Driver</driverClassName>
            <maxActive>50</maxActive>
            <maxWait>60000</maxWait>
            <testOnBorrow>true</testOnBorrow>
        </configuration>
    </definition>
</datasource>
[[datasource]]
id = "WSO2_CARBON_DB"
url= "jdbc:h2:./repository/database/WSO2CARBON_DB;DB_CLOSE_ON_EXIT=FALSE;LOCK_TIMEOUT=60000"
username="username"
password="password"
driver="org.h2.Driver"
pool_options.maxActive=50
pool_options.maxWait = 60000 # wait in milliseconds
pool_options.testOnBorrow = true

Find more parameters.

axis2.xml

  • Hot deployment

    <parameter name="hotdeployment" locked="false">true</parameter>
    [server]
hot_deployment = true

  • Enable MTOM

    <parameter name="enableMTOM" locked="false">false</parameter>
    [server]
enable_mtom = false

    Find more parameters.

  • Enable SWA

    <parameter name="enableSwA" locked="false">false</parameter>
    [server]
enable_swa = false

    Find more parameters.

  • Message formatters

    <messageFormatters>
        <messageFormatter contentType="application/x-www-form-urlencoded"
                          class="org.apache.synapse.commons.formatters.XFormURLEncodedFormatter"/>
        <messageFormatter contentType="multipart/form-data"
                          class="org.apache.axis2.transport.http.MultipartFormDataFormatter"/>
        <messageFormatter contentType="application/xml"
                          class="org.apache.axis2.transport.http.ApplicationXMLFormatter"/>
        <messageFormatter contentType="text/xml"
                         class="org.apache.axis2.transport.http.SOAPMessageFormatter"/>
        <messageFormatter contentType="application/soap+xml"
                         class="org.apache.axis2.transport.http.SOAPMessageFormatter"/>
        <messageFormatter contentType="text/plain"
                         class="org.apache.axis2.format.PlainTextFormatter"/>
        <messageFormatter contentType="application/octet-stream"
                          class="org.wso2.carbon.relay.ExpandingMessageFormatter"/>
        <messageFormatter contentType="application/json"
                          class="org.wso2.carbon.integrator.core.json.JsonStreamFormatter"/>
</messageFormatters>                         
    [message_formatters]
form_urlencoded =  "org.apache.synapse.commons.formatters.XFormURLEncodedFormatter"
multipart_form_data =  "org.apache.axis2.transport.http.MultipartFormDataFormatter"
application_xml = "org.apache.axis2.transport.http.ApplicationXMLFormatter"
text_xml = "org.apache.axis2.transport.http.SOAPMessageFormatter"
soap_xml = "org.apache.axis2.transport.http.SOAPMessageFormatter"
text_plain = "org.apache.axis2.format.PlainTextFormatter"
application_json =  "org.wso2.micro.integrator.core.json.JsonStreamFormatter"
octet_stream = "org.wso2.carbon.relay.ExpandingMessageFormatter"

# Custom message formatters.
[[custom_message_formatters]]
content_type = "application/json/badgerfish"
class = "org.apache.axis2.json.JSONBadgerfishMessageFormatter"

    Find more parameters.

  • Message builders

    <messageBuilders>
        <messageBuilder contentType="application/xml"
                        class="org.apache.axis2.builder.ApplicationXMLBuilder"/>
        <messageBuilder contentType="application/x-www-form-urlencoded"
                        class="org.apache.synapse.commons.builders.XFormURLEncodedBuilder"/>
        <messageBuilder contentType="multipart/form-data"
                        class="org.apache.axis2.builder.MultipartFormDataBuilder"/>
        <messageBuilder contentType="text/plain"
                        class="org.apache.axis2.format.PlainTextBuilder"/>
        <messageBuilder contentType="application/octet-stream"
                        class="org.wso2.carbon.relay.BinaryRelayBuilder"/>
        <messageBuilder contentType="application/json"
                        class="org.wso2.carbon.integrator.core.json.JsonStreamBuilder"/>
</messageBuilders>                                               
    [message_builders]
application_xml = "org.apache.axis2.builder.ApplicationXMLBuilder"
form_urlencoded = "org.apache.synapse.commons.builders.XFormURLEncodedBuilder"
multipart_form_data = "org.apache.axis2.builder.MultipartFormDataBuilder"
text_plain = "org.apache.axis2.format.PlainTextBuilder"
application_json = "org.wso2.micro.integrator.core.json.JsonStreamBuilder"
octet_stream =  "org.wso2.carbon.relay.BinaryRelayBuilder"

# Custom message builders
[[custom_message_builders]]
content_type = "application/json/badgerfish"
class = "org.apache.axis2.json.JSONBadgerfishOMBuilder"

    Find more parameters.

  • HTTP transport receiver

    <transportReceiver name="http" class="org.apache.synapse.transport.passthru.PassThroughHttpListener">
        <parameter name="port" locked="false">8280</parameter>
        <parameter name="non-blocking" locked="false">true</parameter>
        <parameter name="bind-address" locked="false">hostname or IP address</parameter>
        <parameter name="WSDLEPRPrefix" locked="false">https://apachehost:port/somepath</parameter>      
</transportReceiver>                                             
    [transport.http]
listener.enable = true                     
listener.port = 8280    
listener.wsdl_epr_prefix ="https://apachehost:port/somepath"
listener.bind_address = "hostname or IP address"

    Find more parameters.

  • HTTPS transport receiver

    <transportReceiver name="https" class="org.apache.synapse.transport.passthru.PassThroughHttpSSLListener">
    <parameter name="port" locked="false">8243</parameter>
    <parameter name="non-blocking" locked="false">true</parameter>
    <parameter name="HttpsProtocols">TLSv1,TLSv1.1,TLSv1.2</parameter>
    <parameter name="bind-address" locked="false">hostname or IP address</parameter>
    <parameter name="WSDLEPRPrefix" locked="false">https://apachehost:port/somepath</parameter>
    <parameter name="keystore" locked="false">
        <KeyStore>
            <Location>repository/resources/security/wso2carbon.jks</Location>
            <Type>JKS</Type>
            <Password>wso2carbon</Password>
            <KeyPassword>wso2carbon</KeyPassword>
        </KeyStore>
    </parameter>
    <parameter name="truststore" locked="false">
        <TrustStore>
            <Location>repository/resources/security/client-truststore.jks</Location>
            <Type>JKS</Type>
            <Password>wso2carbon</Password>
        </TrustStore>
    </parameter>
</transportReceiver>                                         
    [transport.http]
listener.secured_enable = true              
listener.secured_port = 8243        
listener.secured_wsdl_epr_prefix = "https://apachehost:port/somepath"  
listener.secured_bind_address = "hostname or IP address"
listener.secured_protocols = "TLSv1,TLSv1.1,TLSv1.2"   
listener.keystore.location ="repository/resources/security/wso2carbon.jks"
listener.keystore.type = "JKS" listener.keystore.password = "wso2carbon"
listener.keystore.key_password = "wso2carbon"
listener.truststore.location = "repository/resources/security/client-truststore.jks"
listener.truststore.type = "JKS" listener.truststore.password = "wso2carbon"

    Find more parameters.

  • VFS transport receiver

    <transportReceiver name="vfs" class="org.apache.synapse.transport.vfs.VFSTransportListener"/>                                            
    [transport.vfs]
listener.enable = true

    Find more parameters.

  • Mailto transport receiver

    <transportReceiver name="mailto" class="org.apache.axis2.transport.mail.MailTransportListener"/>    ```
    [transport.mail.listener]
enable = true
name = "mailto"

    Find more parameters.

  • JMS transport receiver

    <transportReceiver name="jms" class="org.apache.axis2.transport.jms.JMSListener">
        <parameter name="myTopicConnectionFactory" locked="false">
            <parameter name="java.naming.factory.initial" locked="false">org.apache.activemq.jndi.ActiveMQInitialContextFactory</parameter>
            <parameter name="java.naming.provider.url" locked="false">tcp://localhost:61616</parameter>
            <parameter name="transport.jms.ConnectionFactoryJNDIName" locked="false">TopicConnectionFactory</parameter>
            <parameter name="transport.jms.ConnectionFactoryType" locked="false">topic</parameter>
        </parameter>
</transportReceiver>
    [transport.jms]
listener_enable = true

[[transport.jms.listener]]
name = "myTopicListener"
parameter.initial_naming_factory = "org.apache.activemq.artemis.jndi.ActiveMQInitialContextFactory"
parameter.provider_url = "tcp://localhost:61616"
parameter.connection_factory_name = "TopicConnectionFactory"
parameter.connection_factory_type = "topic" # [queue, topic]
parameter.cache_level = "consumer"

    Find more parameters.

  • FIX transport receiver

    <transportReceiver name="fix" class="org.apache.synapse.transport.fix.FIXTransportListener"/>
    [transport.fix]
listener.enable = true

    Find more parameters.

  • RabbitMQ transport receiver

    <transportReceiver name="rabbitmq" class="org.apache.axis2.transport.rabbitmq.RabbitMQListener">
        <parameter name="AMQPConnectionFactory" locked="false">
            <parameter name="rabbitmq.server.host.name" locked="false">localhost</parameter>
            <parameter name="rabbitmq.server.port" locked="false">5672</parameter>
            <parameter name="rabbitmq.server.user.name" locked="false">guest</parameter>
            <parameter name="rabbitmq.server.password" locked="false">guest</parameter>
        </parameter>
</transportReceiver>
    [transport.rabbitmq]
listener_enable = true

[[transport.rabbitmq.listener]]
name = "AMQPConnectionFactory"
parameter.hostname = "localhost"
parameter.port = 5672
parameter.username = "guest"
parameter.password = "guest"

    Find more parameters.

  • HL7 transport listener

        <transportReceiver name="hl7" class="org.wso2.carbon.business.messaging.hl7.transport.HL7TransportListener">
        <parameter name="port">9292</parameter>
    </transportReceiver>
    [[custom_transport.listener]]
class="org.wso2.micro.integrator.business.messaging.hl7.transport.HL7TransportListener"
protocol = "hl7"
parameter.'transport.hl7.TimeOut' = 10000

  • HTTP transport sender

    Warning

    Do not duplicate the [transport.http] TOML header when you enable both the JMS listener and sender. Use the TOML header once and add both parameters (listener_enabled and sender_enabled).

    <transportSender name="http" class="org.apache.synapse.transport.passthru.PassThroughHttpSender">
        <parameter name="non-blocking" locked="false">true</parameter>
 </transportSender>
    [transport.http]
#listener_enable = true
sender.enable = true

    Find more parameters.

  • HTTPS transport sender

    <transportSender name="https" class="org.apache.synapse.transport.passthru.PassThroughHttpSSLSender">
        <parameter name="non-blocking" locked="false">true</parameter>
        <parameter name="keystore" locked="false">
            <KeyStore>
                <Location>repository/resources/security/wso2carbon.jks</Location>
                <Type>JKS</Type>
                <Password>wso2carbon</Password>
                <KeyPassword>wso2carbon</KeyPassword>
            </KeyStore>
        </parameter>
        <parameter name="truststore" locked="false">
            <TrustStore>
                <Location>repository/resources/security/client-truststore.jks</Location>
                <Type>JKS</Type>
                <Password>wso2carbon</Password>
            </TrustStore>
        </parameter>
</transportSender>
    [transport.http]
sender.secured_enable = true
sender.keystore.location ="repository/resources/security/wso2carbon.jks"
sender.keystore.type = "JKS"
sender.keystore.password = "wso2carbon"
sender.keystore.key_password = "wso2carbon"
sender.truststore.location = "repository/resources/security/client-truststore.jks"
sender.truststore.type = "JKS"
sender.truststore.password = "wso2carbon"

    Find more parameters.

  • VFS transport sender

    <transportSender name="vfs" class="org.apache.synapse.transport.vfs.VFSTransportSender"/>
    [transport.vfs]
sender.enable = true

    Find more parameters.

  • VFS transport sender

    <transportSender name="mailto" class="org.apache.axis2.transport.mail.MailTransportSender">
        <parameter name="mail.smtp.host">smtp.gmail.com</parameter>
        <parameter name="mail.smtp.port">587</parameter>
        <parameter name="mail.smtp.starttls.enable">true</parameter>
        <parameter name="mail.smtp.auth">true</parameter>
        <parameter name="mail.smtp.user">synapse.demo.0</parameter>
        <parameter name="mail.smtp.password">mailpassword</parameter>
        <parameter name="mail.smtp.from">synapse.demo.0@gmail.com</parameter>
</transportSender>
    [[transport.mail.sender]]
name = "mailto"
parameter.hostname = "smtp.gmail.com"
parameter.port = "587"
parameter.enable_tls = true
parameter.auth = true
parameter.username = "synapse.demo.0"
parameter.password = "mailpassword"
parameter.from = "synapse.demo.0@gmail.com"

    Find more parameters.

  • FIX transport sender

    <transportSender name="fix" class="org.apache.synapse.transport.fix.FIXTransportSender"/>
    [transport.fix]
sender.enable = true

    Find more parameters.

  • RabbitMQ transport sender

    <transportSender name="rabbitmq" class="org.apache.axis2.transport.rabbitmq.RabbitMQSender"/>
    [transport.rabbitmq]
sender_enable = true

    Find more parameters.

  • JMS transport sender

    <transportSender name="jms" class="org.apache.axis2.transport.jms.JMSSender"/>
    [transport.jms]
sender_enable = true

    Find more parameters.

  • HL7 transport sender

        <transportSender name="hl7" class="org.wso2.carbon.business.messaging.hl7.transport.HL7TransportSender">
    <!--parameter name="non-blocking">true</parameter-->
  </transportSender>
    [[custom_transport.sender]]
class="org.wso2.micro.integrator.business.messaging.hl7.transport.HL7TransportSender"
protocol = "hl7"
synapse.properties

Synapse thread pool properties:

synapse.threads.core = 20
synapse.threads.max = 100
[mediation]
synapse.core_threads = 20
synapse.max_threads = 100

Find more parameters.

passthru-http.properties

  • HTTP/S worker pool properties

    worker_pool_size_core=400
worker_pool_size_max=400
worker_pool_queue_length=-1
    [transport.http]
core_worker_pool_size = 400         # inferred default: 400
max_worker_pool_size = 400          # inferred default: 400
worker_pool_queue_length = -1

    Find more parameters.

  • Preserve headers

    http.user.agent.preserve=false
http.server.preserve=true
http.headers.preserve=Content-Type
    [transport.http]
preserve_http_user_agent = false
preserve_http_server_name = true
preserve_http_headers = ["Content-Type"]

    Find more parameters.

jndi.properties

  • JMS connection factory

    connectionfactory.QueueConnectionFactory = amqp://admin:admin@clientID/carbon?brokerlist='tcp://localhost:5675'
connectionfactory.TopicConnectionFactory = amqp://admin:admin@clientID/carbon?brokerlist='tcp://localhost:5675'
    [transport.jndi.connection_factories]
'connectionfactory.QueueConnectionFactory' = "amqp://admin:admin@clientID/carbon?brokerlist='tcp://localhost:5675'"
'connectionfactory.TopicConnectionFactory' = "amqp://admin:admin@clientID/carbon?brokerlist='tcp://localhost:5675'"

    Find more parameters.

  • JMS queue

    queue.JMSMS=JMSMS
    [transport.jndi.queue]
JMSMS = "JMSMS"

    Find more parameters.

  • JMS topic

    topic.MyTopic = example.MyTopic
    [transport.jndi.topic]
MyTopic = "example.MyTopic"

    Find more parameters.

tasks-config.xml
<taskServerCount>1</taskServerCount>
<defaultLocationResolver>
    <locationResolverClass>org.wso2.carbon.ntask.core.impl.RoundRobinTaskLocationResolver</locationResolverClass>
</defaultLocationResolver>      
[task_handling]
resolver_class = "org.wso2.micro.integrator.ntask.coordination.task.resolver.RoundRobinResolver"

[[task_resolver]]
task_server_count = "3"

Find more parameters.

The complete list of TOML configurations for the Micro Integrator are listed in the product configuration catalog.

Migrating Log4j configurations

WSO2 ESB 5.0 (and all ESB versions prior to EI 6.6.0) use log4j. In WSO2 EI 7 Micro Integrator, the carbon.logging.jar file is not packed and the pax-logging-api is used instead. With this upgrade, the log4j version is also updated to log4j2.

See the topics given below to configure log4j2 in EI 7 Micro Integrator.

Follow the instructions given below if you have used a custom log4j component in your older ESB version.

  1. Replace carbon logging or commons.logging dependencies with pax-logging dependency as shown below. 

    <!-- Pax Logging -->
<dependency>
   <groupId>org.ops4j.pax.logging</groupId>
   <artifactId>pax-logging-api</artifactId>
   <version>${pax.logging.api.version}</version>
</dependency>
<!-- Pax Logging Version -->
<pax.logging.api.version>1.10.1</pax.logging.api.version>

  2. If log4j dependency is directly used, apply one of the options given below.

    • Replace the log4j dependency (shown below) with log4j2 and rewrite the loggers accordingly. 
      <dependency>
   <groupId>org.ops4j.pax.logging</groupId>
   <artifactId>pax-logging-log4j2</artifactId>
   <version>${pax.logging.log4j2.version}</version>
</dependency>
    • Replace the log4j dependency with pax-logging dependency and rewrite the loggers using commons.logging accordingly.

  3. If commons.logging is imported using Import-Package, add the version range. 

    org.apache.commons.logging;
version="${commons.logging.version.range}" 
<commons.logging.version.range>[1.2.0,2.0.0)</commons.logging.version.range>

  4. Follow the instructions on configuring log4j2 to register the Appenders and Loggers.

Migrating encrypted passwords

To migrate the encrypted passwords from ESB 5.0.0, you need to first obtain the plain-text passwords. Once you have them, follow the normal procedure of encrypting secrets in EI 7. See Encrypt Secrets for instructions.

In case you need to obtain the plaintext passwords from the encrypted passwords in the WSO2 ESB 5.0.0, you can use the password decryption tool.

Follow the instructions given below to use the password decryption tool.

  1. Download the tool.

  2. Copy the org.wso2.mi.migration-1.2.0.jar into the ESB_HOME/repository/components/dropins folder in the server.

  3. Create a directory named migration in ESB_HOME.

  4. Copy the migration-conf.properties file into the migration directory, and update the following property.

    Property Description
    admin.user.name The user name of the system administrator.

  5. Start the server using the migrate.from.product.version system property as follows:

    sh wso2server.sh -Dmigrate.from.product.version=esb
    wso2server.bat -Dmigrate.from.product.version=esb

    Info

    Upon successful execution, the decrypted (plain-text) values in the secure-vault.properties and cipher-text.properties files will be written respectively to the <ESB_HOME>/migration/secure-vault-decrypted.properties file and the <ESB_HOME>/migration/cipher-text-decrypted.properties file in ESB 5.0.0.

    The encrypted passwords are now decrypted and you have access to the plain-text password values.

  6. You can now follow the instructions in Encrypting Secrets to re-encrypt the plain text secrets for the Micro Integrator.

Migrating the Hl7 Transport

HL7 transport is not shipped by default in the Micro Integrator of EI 7.1.0. Therefore, see Configuring the HL7 transport to set up HL7 in the Micro Integrator.

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