How to setup or use sftp cachingSessionFactory? - spring

I tried to follow the spring integration SFTP adapter to setup the data feed from local directory to remote site with sftp outbound channel adapter. The feed basically works fine.
But I would like to use cached connection. With the official
guideline for cachingSessionFactory setup:
http://docs.spring.io/spring-integration/reference/html/sftp.html#sftp-session-caching
<bean id="sftpSessionFactory"
class="org.springframework.integration.sftp.session.DefaultSftpSessionFactory">
<property name="host" value="localhost"/>
</bean>
<bean id="cachingSessionFactory"
class="org.springframework.integration.file.remote.session.CachingSessionFactory">
<constructor-arg ref="sftpSessionFactory"/>
<constructor-arg value="10"/>
<property name="sessionWaitTimeout" value="1000"/>
</bean>
But seems even if I have the sftp-session-caching defined, the sftp session will be closed once a file is sent successfully?
Anyone has experience on this?

Related

how to trigger many ftp inbound-channel-adapter from one poller to connect ftp server?

First, thank you for your attention
i defined two ftp inbound-channel-adapter in my spring integration project,the adapters with diferent configuration but have share session factory to connect ftp server, each adapters have one poller to trigger,i want to see the bellow code is correct?
is efficiency?
<bean id="ftpClientFactory"
class="org.springframework.integration.ftp.session.DefaultFtpSessionFactory">
<property name="host" value="127.0.0.1"/>
<property name="port" value="21"/>
<property name="username" value="banks_reader"/>
<property name="password" value="123456"/>
</bean>
<bean id="myFilter" class="com.ali.util.FtpFilter"/>
<bean id="onceFilter" class="com.ali.util.OnceFilter"/>
<int-ftp:inbound-channel-adapter id="ftpInbound1"
channel="inboundFileChannel"
**session-factory="ftpClientFactory"**
charset="UTF-8"
auto-create-local-directory="true"
delete-remote-files="true"
remote-directory="/directoryA"
remote-file-separator="/"
temporary-file-suffix=".writing"
local-filter="myFilter"
filter="onceFilter"
local-directory="file:output">
**<int:poller fixed-rate="5000"/>**
</int-ftp:inbound-channel-adapter>
<int-ftp:inbound-channel-adapter id="ftpInbound2"
channel="inboundFileChannel"
**session-factory="ftpClientFactory"**
charset="UTF-8"
auto-create-local-directory="true"
delete-remote-files="true"
remote-directory="/directoryB"
remote-file-separator="/"
temporary-file-suffix=".writing"
local-filter="myFilter"
filter="onceFilter"
local-directory="file:output">
**<int:poller fixed-rate="5000"/>**
</int-ftp:inbound-channel-adapter>
Is there another way?
That is the correct technique using channel adapters.
Or, you could use an outbound gateway instead, and fetch (ls + get or mget) files from both directories in turn.

JNDI binding in JBOss for MQ

I need a little bit of help in configuring JBoss to work with MQ. I have created initial context in MQ using IBM MQ Explorer and have given a local directory for all bindings like file:/C:/jndi. I have created a connection factory for this initial context. Now JBoss documentation says to bind like this
<connection-definition class-name="com.ibm.mq.connector.outbound.ManagedConnectionFactoryImpl"
jndi-name="java:jboss/MQ.CONNECTIONFACTORY.NAME"
pool-name="MQ.CONNECTIONFACTORY.NAME">
I think I am missing some point here. How do I tell Jboss that my InitialContext bindings are in a directory. I have tried most of the combinations. May be I am not getting the concept right. Any pointers ?
When I try to access this MQ.CONNECTIONFACTORY.NAME from a test servlet I wrote I get javax.naming.NameNotFoundException . If I follow same steps in Java SE environment I am successfully able to establish a connection. I am new to application servers and the question might be naive
Regards
The description of the resources created via MQExplorer suggest that these have been put into JNDI backed by a File System context. This is perfectly fine, but what in theory needs to be done now is get JBOSS to read objects out that JNDI context rather than the usual JNDI provider provided by JBOSS. The settings that are in the connection definition extract are using the standard JBOSS JNDI context.
As an example of using JBOSS with the WebSphere MQ Resoruce Adapter have a look here http://pic.dhe.ibm.com/infocenter/wmqv7/v7r5/topic/com.ibm.mq.dev.doc/q031810_.htm
This links to an example set of definitions that store WMQ JMS administered objects in the JBOSS JNDI context.
This is an important question. I have used Spring for this, like this:
<util:properties id="remoteEnv">
<prop key="java.naming.provider.url">file:${my.config.path}/bindings</prop>
<prop key="java.naming.factory.url.pkgs">org.jboss.naming:org.jboss.naming.remote.client</prop>
<prop key="java.naming.factory.initial">com.sun.jndi.fscontext.RefFSContextFactory</prop>
<prop key="java.naming.security.principal">${mdb.user.name}</prop>
<prop key="java.naming.security.credentials">${mdb.user.pass}</prop>
</util:properties>
<bean id="remoteJNDITemplate" class="org.springframework.jndi.JndiTemplate">
<property name="environment" ref="remoteEnv" />
</bean>
<bean id="remoteJmsDestinationResolver" class="org.springframework.jms.support.destination.JndiDestinationResolver">
<property name="jndiTemplate" ref="remoteJNDITemplate" />
<property name="cache" value="true" />
</bean>
<jee:jndi-lookup id="senderQueue" jndi-name="MY_QUEUE_NAME" environment-ref="remoteEnv" />
<bean id="xamqconnectionFactory" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiTemplate">
<ref bean="remoteJNDITemplate"/>
</property>
<property name="jndiName" value="MYCONNECTIONFACTORYJNDINAME"/>
<property name="lookupOnStartup" value="false" />
<property name="proxyInterface" value="javax.jms.XAQueueConnectionFactory" />
</bean>
<bean id="xaMQSenderJMSTemplate" class="org.springframework.jms.core.JmsTemplate">
<property name="connectionFactory">
<ref bean="xamqconnectionFactory" />
</property>
<property name="pubSubDomain">
<value>false</value>
</property>
<property name="defaultDestination">
<ref bean="senderQueue" />
</property>
<property name="destinationResolver" ref="remoteJmsDestinationResolver" />
</bean>
however using the configuration above we bypass the resource adapter. That's no problem otherwise but it prevents transactions from joining the JBoss transaction, so JMS messages are send immediately, not with transaction commit. I haven't found a fix for that yet.
com.sun.jndi.fscontext.RefFSContextFactory, that is used to read .bindings file, can be found at this dependency:
<dependency>
<groupId>com.sun.messaging.mq</groupId>
<artifactId>fscontext</artifactId>
<version>4.6-b01</version>
</dependency>

Camel jms to external activeMQ with request-reply gives javax.jms.InvalidDestinationException: Cannot publish to a deleted Destination:

We have third party applications that make restful calls to camel cxfrs endpoint which is then routed to an external activeMQ. There are applications consuming these JMS messages and provide XML responses. This is all done synchronously using camel InOut exchangePattern. The architecture is very straight forward and simple. We were using activeMQ 5.5.0-fuse, camel-jms 2.8.x and activemq-pool 5.6.
Using this configuration, we see this exception at random times:
javax.jms.InvalidDestinationException: Cannot publish to a deleted Destination: temp- queue://ID:testserver-37266-1366126830205-0:0:1
at org.apache.activemq.ActiveMQSession.send(ActiveMQSession.java:1696)
at org.apache.activemq.ActiveMQMessageProducer.send(ActiveMQMessageProducer.java:231)
at org.apache.activemq.pool.PooledProducer.send(PooledProducer.java:74)
at org.apache.activemq.pool.PooledProducer.send(PooledProducer.java:55)
When this happens the server just stalls and none of our services respond until we restart activeMQ, tomcat and all other services.
camel config:
<import resource="classpath:META-INF/cxf/cxf.xml"/>
<bean id="routeBuilder" class="gov.nasa.arc.tmi.route.TMIServiceRoute"/>
<bean id="jaxbProvider" class="org.apache.cxf.jaxrs.provider.JAXBElementProvider">
<property name="marshallerProperties" ref="propertiesMap"/>
</bean>
<util:map id="propertiesMap">
<entry key="jaxb.formatted.output">
<value type="java.lang.Boolean">true</value>
</entry>
</util:map>
<camelContext id="camel" xmlns="http://camel.apache.org/schema/spring">
<routeBuilder ref="routeBuilder"/>
</camelContext>
<bean id="activemq"
class="org.apache.activemq.camel.component.ActiveMQComponent">
<property name="brokerURL" value="tcp://localhost:61616"/>
Camel Router class:
//reroute
from("cxfrs:/rr?resourceClasses=x.y.z.route.RerouteResource")
.setExchangePattern(ExchangePattern.InOut)
.process(new RerouteProcessor())
.to("activemq:queue:x.y.z.tmi.request");
Here is the spring configuration of the application that listens on queue:x.y.z.tmi.request consumes JMS messages:
<context:annotation-config/>
<bean id="connectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">
<property name="brokerURL">
<value>tcp://localhost:61616? wireFormat.maxInactivityDurationInitalDelay=30000</value>
</property>
</bean>
<bean id="pooledConnectionFactory"
class="org.apache.activemq.pool.PooledConnectionFactory" init-method="start" destroy-method="stop">
<property name="maxConnections" value="8" />
<property name="connectionFactory" ref="connectionFactory" />
</bean>
<bean id="destination" class="org.apache.activemq.command.ActiveMQQueue">
<constructor-arg value="gov.nasa.arc.tmi.request"/>
</bean>
<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
<property name="connectionFactory" ref="pooledConnectionFactory"/>
<property name="defaultDestination" ref="destination" />
</bean>
<jms:listener-container connection-factory="pooledConnectionFactory" concurrency="10">
<jms:listener destination="gov.nasa.arc.tmi.request" ref="tmiQueryListener" />
After googling, I came across these bugs:
https://issues.apache.org/jira/browse/CAMEL-6229
https://issues.apache.org/jira/browse/AMQ-3457
Based on these, we upgraded to camel 2.10.4, activeMq 5.7 and activemq-pool 5.7. Even so, the problem remains.
I am really stuck and don't know how to resolve this issue. Can some one kindly point out what could be wrong?
Thanks.
I wonder if its because the processing the JMS message on the other side takes too long, and then the inactive monitor of ActiveMQ deletes the temp destination as its been inactive for > 30 seconds. http://activemq.apache.org/activemq-inactivitymonitor.html
Maybe try to set the timeout to a higher value, or disable it.
Another option is to use fixed queues for reply queues instead of temp queues.

Passing encrypted properties to spring context

I never seen this but I wondering if somebody has come across. Having a web server which access a database. I want to pass the database password encrypted and have spring context decrypting it before setting the datasource. I know the spring security can do some of this like using a salt file in the web server, etc.
The challenge here is that I don't want to give a clear user,password,url to the web server team. Just an encrypted password and have spring decrypted before using it.
Is there something like this already? I know I could code something but is it already done?
Thanks
By using an org.jasypt.properties.EncryptableProperties object, an application would be able to correctly read and use a .properties file like this:
datasource.driver=com.mysql.jdbc.Driver
datasource.url=jdbc:mysql://localhost/reportsdb
datasource.username=reportsUser
datasource.password=ENC(G6N718UuyPE5bHyWKyuLQSm02auQPUtm)
Note that the database password is encrypted (in fact, any other property could also be encrypted, be it related with database configuration or not).
More information :
http://www.jasypt.org/encrypting-configuration.html
I actually found exactly what I was looking for in this thread:
How to use encrypted password in apache BasicDataSource?
Here are the details from jasyp http://www.jasypt.org/spring3.html
This problem and solution to it is explained here..(link)
db.Properties.
#driverClassName=oracle.jdbc.driver.OracleDriver
#url=jdbc:oracle:thin:#localhost:1521:XE
#username=ITEM_INVENTORY
driverClassName=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/ITEM_INVENTORY?zeroDateTimeBehavior=convertToNull
username=root
Encrypt db.Properties
##password=cGFzc3dvcmQ=
password=cm9vdA==
The spring beans configuration for the datasource would look like this
(here you may use only password part)
spring-beans.xml
<bean id="dataSource" destroy-method="close" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="db#[driverClassName]" />
<property name="url" value="db#[url]" />
<property name="username" value="db#[username]" />
<property name="password" value="encryptedDb#[password]" />
</bean>
<bean id="dbPropertyPlaceholder" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:db.properties</value>
</list>
</property>
<property name="placeholderPrefix" value="db#[" />
<property name="placeholderSuffix" value="]" />
</bean>
<bean id="encryptedDbPropertyPlaceholder" class="com.inventory.api.util.DecryptPropertyConfigurer">
<property name="locations">
<list>
<value>classpath:encryped_db.properties</value>
</list>
</property>
<property name="placeholderPrefix" value="encryptedDb#[" />
<property name="placeholderSuffix" value="]" />
</bean>
And so on.. please refer given link for more information..

Start the H2 database in server mode via Spring

I'm trying to start the H2 database in server mode (I want it to run in a different process) via Spring.
Currently I'm using java Runnable.exec to start the h2 database (using the command: "java -cp h2.jar org.h2.tools.Server")
I know that there is a way to do it via Spring. I tried to add the following to the spring configuration, but it didn't work (it didn't start the H2 database):
<bean id="org.h2.tools.Server" class="org.h2.tools.Server"
factory-method="createTcpServer" init-method="start" destroy-method="stop">
<constructor-arg value="-tcp,-tcpAllowOthers,true,-tcpPort,8043" />
</bean>
<bean id="org.h2.tools.Server-WebServer" class="org.h2.tools.Server"
factory-method="createWebServer" init-method="start">
<constructor-arg value="-web,-webAllowOthers,true,-webPort,8082" />
</bean>
I would appreciate any help/ideas
Do you happen to have:
<beans default-lazy-init="true" ...
in your Spring configuration files?
Recently I had to do the same configuration to make unit test and check data, this works for me (Spring 3.1.4). Then you just have to connect with jdbc:h2:tcp://localhost:8043/mem:test and make sure to put a while(true){} at the end of your test.
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="org.h2.Driver"/>
<!--property name="url" value="jdbc:h2:mem:;TRACE_LEVEL_FIlE=4"/-->
<property name="url" value="jdbc:h2:mem:test;DB_CLOSE_DELAY=-1"/>
<property name="username" value="sa"/>
<property name="password" value=""/>
</bean>
<bean class="org.h2.tools.Server" factory-method="createTcpServer" init-method="start" destroy-method="stop">
<constructor-arg>
<array>
<value>-tcp</value>
<value>-tcpAllowOthers</value>
<value>-tcpPort</value>
<value>8043</value>
</array>
</constructor-arg>
</bean>
Are you sure the createTcpServer method in the Server class is really called? Have you tried setting up a breakpoint there?
H2 tutorial claims this how you can create and start the server programmatically:
import org.h2.tools.Server;
...
// start the TCP Server
Server server = Server.createTcpServer(args).start();
...
// stop the TCP Server
server.stop();
Your Spring definition seems to mimick the same initialization. But you can always try doing it manually - maybe it's some fault in Spring configuration.
EDIT:
I've tried your configuration and it works for me. What makes you think the server is not started? It doesn't print out anything on stdout, however the process listens at the 8043 port. So it seems pretty OK.

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