Hey Dilli,
To see how a deployment contributor passes params into the deployment
take a look at the contributeDataNodeResource method of
gateway-service-webhdfs/src/main/java/org/apache/hadoop/gateway/hdfs/WebHdfsDeploymentContributor.java
method
in particular the lines below.
params = new ArrayList<FilterParamDescriptor>();
params.add( fileResource.createFilterParam().
name( UrlRewriteServletFilter.REQUEST_URL_RULE_PARAM ).value(
getQualifiedName() + "/inbound/datanode" ) );
addRewriteFilter( context, service, fileResource, params );
This ends up calling the deployment contributor for the provider. A
good example of this is the contributeFilter method of
gateway-provider-rewrite/src/main/java/org/apache/hadoop/gateway/filter/rewrite/impl/UrlRewriteDeploymentContributor.java
This method simply passes the params into filter init params in the
gateway.xml descriptor.
You can also look at
gateway-server/src/main/java/org/apache/hadoop/gateway/deploy/impl/DispatchDeploymentContributor.java
that is adding a filter init parameter depending upon a configuration
parameter. I don't think that HttpClientDispatch is currently using
that value BTW.
Finally you can see how the filter init params are accessed between
these two classes.
gateway-provider-rewrite/src/main/java/org/apache/hadoop/gateway/filter/rewrite/api/UrlRewriteServletFilter.java
gateway-provider-rewrite/src/main/java/org/apache/hadoop/gateway/filter/rewrite/impl/UrlRewriteRequest.java
Hope this saves you some time if you haven't already figured all of this
out.
Kevin.
--
CONFIDENTIALITY NOTICE
NOTICE: This message is intended for the use of the individual or entity to
which it is addressed and may contain information that is confidential,
privileged and exempt from disclosure under applicable law. If the reader
of this message is not the intended recipient, you are hereby notified that
any printing, copying, dissemination, distribution, disclosure or
forwarding of this communication is strictly prohibited. If you have
received this communication in error, please contact the sender immediately
and delete it from your system. Thank You.
