List of Interceptors

Interceptors can modify or extend the behaviour of Membrane Monitor and Router. This page describes the interceptors that are included in the Membrane ESB and Monitor distribution.

EAI Patterns and Integration

Name	Description	Sample Projects
switch	Routes messages by evaluating XPath expressions against the content.
transform	An interceptor that can apply XSLT Transformations to the content of requests and responses.	xslt
xmlContentFilter	A content filter that removes elements from XML messages, based on an XPath expression.

Logging

Name	Description	Sample Projects
log	Logs requests and responses.	logging
statisticsCSV	Logging access to CSV.	logging-csv
statisticsJDBC	Storing Exchange Statistics in a Database.	logging-jdbc

SOAP

Name	Description	Sample Projects
rest2Soap	This interceptor can be used to map HTTP requests to SOAP operation calls.	rest2soap
validator	Validates SOAP messages by XML Schemas from a WSDL.	soap-schema-validation
wsdlRewriter	The WSDLInterceptor modifies the endpoint location and URLs of schema includes and imports.
wsdlPublisher	The WSDLPublisher can be used to serve WSDLs, if your backend does not already do so.

Cloud Computing

Name	Description	Sample Projects
clusterNotification	Allows managing clusters and nodes per REST API	loadbalancer-client-2
balancer	Distributs calls to several endpoints.	Amazon Cloud Tutorial loadbalancer-basic-1 loadbalancer-client-2 loadbalancer-session-3

Test

Name	Description	Sample Projects
counter	Provides a mock Web page that counts the number of invocations.	loadbalancer-basic-1

Security, XML Attack and DoS Protection

Name	Description	Sample Projects
accessControl	Limits client access to resources based on an access control list.	acl
basicAuthentication	With the BasicAuthentictionInterceptor you can secure your services or Web pages by HTTP Basic Authentication.	basic-auth
throttle	Delays and limits the number of parallel requests.	throttle
xmlProtection	Protects against certain denial of service attacks based on XML "features".
soapStackTraceFilter	Removes stack traces from SOAP messages.
headerFilter	Removes HTTP headers from messages.
login	Authorizes HTTP requests based on the general concept of a user data provider (for example, LDAP). Can serve to realize Single Sign On.
oauth2Resource	Authorizes HTTP requests based on the RFC6749 OAuth 2.0 framework. Different communication schemes between the authorization server and Membrane (protecting the resource server) can be plugged in. An adapter for communication with Google's authorization servers is provided. Can serve to realize Single Sign On. (Follow the tutorial.)
rateLimiter	Limits the number of requests in a given interval.	rateLimiter

Internal

Name	Description	Sample Projects
adminConsole	Provides a Web Console to manage and monitor the router online.
dispatching	Dispatches requests to target hosts.
exchangeStore	The FileExchangeStore saves all captured messages to disk.	file-exchangestore
ruleMatching	Dispatches incoming requests to rules.

Other

Name	Description	Sample Projects
groovy	Executes Groovy scripts.	groovy
index	Lists all services available through the proxy.
regexReplacer	Replaces parts of the body.
rewriter	An interceptor that can rewrite URLs that are matched by an regular expression.	regex-url-rewriter
webServer	Provides simple Web Server functionality.

Sample Projects

You will find the sample projects in the %MEMBRANE_HOME%/examples directory.