Configuring at runtime

[newbie_24]

Thanks for the clarification Cleric.Appreciate your help.

ExpressionParser parser = new SpelExpressionParser();
StandardEvaluationContext context = new StandardEvaluationContext();
context.setBeanResolver(new sftpSessionFactory());  

// This will end up calling resolve(context,"foo") on MyBeanResolver during evaluation
Object bean = parser.parseExpression("@remoteDirectoryRequestBea n").getValue(context);

In the above code do I have to use sftpSessionFactory or sendChannel.

Also, please let me know if the scope= request for httpsession?

thanks

[newbie_24]

one more doubt,

Is scoped annotation required in my class something like

@Scope(Request)

Please give the sample code to set the attribute value if I'm doing it wrong.

Thank You

[Cleric]

Is scoped annotation required in my class something like

This annotation is needed when you configure beans on Java-level, not XML. So, scope="request" and @Scope("request") do the same work for builded bean.

About your code around ExpressionParser: why do you need this code? What are you doing with it?

sample code to set the attribute value

Sample about what? What don't you get?

[newbie_24]

Now, that you have defined the sftpSessionFactory bean in the xml file with "scope=request"

We also have the

<sftp outbound-channel-adapter session-factory=sftpSessionFactory  remote-directory-expression=@remoteRequestBean>

Somehow I should set the value of the attribute (remote-directory-expression) ,I'm not able to understand how that works.

Thanks

[Cleric]

remote-directory-expression="@remoteRequestBean"

As I said at the begin, it is an expression which will be invoked on the each Message in the <sftp:outbound-channel-adapter/>
And also we've decided to use here some request-scoped bean, which will be setuped by end-user in the GUI as properties of sftpSessionFactory bean.
However, keep in mind: remote-directory-expression is a SpEL and it has an ability to access to Message properties.
So, you can from GUI build a Message with some header with value about remote directory.

And now I'm a bit sad, that you haven't read the article, I gave...

[newbie_24]

I did read through the article mentioned in the link.I did not notice anything about constructing message with header.I'm Sorry,maybe I'm missing something here.

If you see the section Bean References 7.5.12, it mentions
7.5.12 Bean references

If the evaluation context has been configured with a bean resolver it is possible to lookup beans from an expression using the (@) symbol.

That is were I looked at the example.

So is it enough to just use..

Message<File> message1 = MessageBuilder.withPayload(file1)
        .setHeader("remote-directory", "/dirname/")
        .build();

Will that simply substitute the value of remote directory in the place of @remoteRequestBean.Don't we have to refer to @remoteRequestBEan in the code.

Thank You for your help Cleric.

[Cleric]

Following with your last sample, now you should configure remote-directory-expression like this:

remote-directory-expression="headers['remote-directory']"

[newbie_24]

Thank You Cleric

[poly]

Thank You Cleric

Why not write a class which returns you back the remote directory expression just a regular string and then use header enricher to set it ?. Much simpler..

[newbie_24]

Hi ,

Somebody please help.Please go through the email threads above and this is the error I see

Error creating bean with name 'scopedTarget.sftpSessionFactory': Scope 'request' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.

I'm not using any HttpRequest.

 <bean id="sftpSessionFactory"
    class="org.springframework.integration.sftp.session.DefaultSftpSessionFactory" scope="request">
    <aop:scoped-proxy/>
  </bean>
<sftp:outbound-channel-adapter channel="sendChannel"
    session-factory="sftpSessionFactory" id="sftpInboundAdapter"
    auto-create-directory="true"
    temporary-file-suffix = "temp"
    remote-directory-expression="headers['remote-directory']" />

	@Inject
	private DefaultSftpSessionFactory sftpSessionFactory;

	@Inject
	@Named("sendChannel")
	private MessageChannel sftpChannel;
        hostname = serverProp.getHostname();
        password = serverProp.getPassword();
        username = serverProp.getUsername();
        remoteDir = serverProp.getRemoteDir();

	sftpSessionFactory.setHost(hostname);
	sftpSessionFactory.setUser(username);
	sftpSessionFactory.setPassword(password);

        Message<File[]> message = MessageBuilder
			        .withPayload(zippedFilesList)
			        .setHeader("remote-directory",remoteDir).build();
			if(sftpChannel != null && message != null)
				sftpChannel.send(message);

The above error shown is thrown at the code which is underlined.

Thanks