I am trying to embed activemq broker in a Tomcat. The code base will be deployed in different environments. I want to externalize some parameters, but want to provide default values for those parameters in case the deployed environment does not provide values for place holders.
This is what I have :
<property name="properties">
<props>
<prop key="embed.broker.networkConnectorURI">static:(failover:(tcp://server01:61616,tcp://server02:61616))
</prop>
<prop key="embed.broker.transportConnectorURI">vm://localhost:61616</prop>
</props>
</property>
<bean id="broker" class="org.apache.activemq.broker.BrokerService"
init-method="start" destroy-method="stop">
<property name="networkConnectorURIs">
<list>
<ref >${embed.broker.networkConnectorURI}</ref>
</list>
</property>
<property name="transportConnectorURIs">
<list>
<value>${embed.broker.transportConnectorURI}</value>
</list>
</property>
<property name="brokerName" value="embed-broker" />
</bean>
When I deploy this in an environment where the place holders are missing, Tomcat throws "Could not resolve placeholder 'embed.broker.networkConnectorURI' " error. In other words, the default values are not being picked up.
Any help would be appreciated.
To have some default values, go on this way:
<bean id="myServer" class="com.gordondickens.myapp.MyServerConfig">
<property name="serverName" value="${server.name?localhost}" />
<property name="serverPort" value="${server.port?25}" />
</bean>
Use a PropertyOverrideConfigurer instead of a PropertyPlaceholderConfigurer. That way your defaults specified in the context file will be used if no overriding property file entries are found.
Related
I am using spring-mvc with freemarker-2.3.27-incubating.jar.
And bean configuration for view-resolver like below...
<bean id="freemarkerConfig" class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
<property name="templateLoaderPath" value="/"/>
<property name="freemarkerSettings">
<props>
<prop key="template_exception_handler">rethrow</prop>
<prop key="number_format">0.########</prop>
<prop key="date_format">dd/MM/yyyy</prop>
</props>
</property>
</bean>
<bean id="viewResolver" class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">
<property name="suffix" value=".ftl"/>
<property name="exposeSpringMacroHelpers" value="true"/>
<property name="exposeRequestAttributes" value="true"/>
<property name="exposeSessionAttributes" value="true"/>
<property name="requestContextAttribute" value="rc"/>
</bean>
Where and how can I use <#ftl output_format="HTML"> or <#ftl output_format="HTML" auto_esc=true> to enable HTML auto-scape ?
The #ftl tags you just add at the beginning of the template files themselves. But I would recommend setting recognize_standard_file_extensions to true in the freemarkerSettings properties, and then use .ftlh file extension instead of .ftl. Or, even better, you set incompatible_improvements to 2.3.27 there instead, which enables recognize_standard_file_extensions and some fixes. (Last not least, in case you want this for .ftl for some reason, you can set output_format to HTMLOutputFormat in freemarkerSettings properties too.)
I have written below spring integration program in which i am trying to read messages from queue and then store the messages in a file in c: drive of my computer as if the file is not created then it will create a new file whose name will be outputmessages.txt but rite now the file is not prepared , can you please advise what went wrong how can i overcome from this..
<int:channel id="output" >
</int:channel>
<bean id="tibcoEMSJndiTemplate" class="org.springframework.jndi.JndiTemplate">
<property name="environment">
<props>
<prop key="java.naming.factory.initial">com.tibco.tibjms.naming.TibjmsInitialContextFactory</prop>
<prop key="java.naming.provider.url">tcp://abc.net:2333</prop>
<prop key="java.naming.security.principal">wert</prop>
<prop key="java.naming.security.credentials">wert</prop>
</props>
</property>
</bean>
<bean id="tibcoEMSConnFactory" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiTemplate">
<ref bean="tibcoEMSJndiTemplate" />
</property>
<property name="jndiName">
<value>GenericConnectionFactory</value>
</property>
</bean>
<bean id="tibcosendJMSTemplate" class="org.springframework.jms.core.JmsTemplate">
<property name="connectionFactory">
<ref local="tibcoEMSConnFactory" />
</property>
<property name="defaultDestinationName">
<value>abc.test.data</value>
</property>
<property name="pubSubDomain">
<value>false</value>
</property>
<property name ="receiveTimeout">
<value>120000</value>
</property>
</bean>
<int:channel id="input">
</int:channel>
<jms:outbound-channel-adapter channel="input" destination-name="abc.test.data" connection-factory="tibcoEMSConnFactory" />
<jms:message-driven-channel-adapter channel="filesIn" concurrent-consumers="2" destination-name="abc.test.data" connection-factory="tibcoEMSConnFactory" />
<file:outbound-channel-adapter id="filesIn" auto-create-directory="true" filename-generator-expression="'messagesoutput.txt'"
directory="c:\\message\\" >
</file:outbound-channel-adapter>
</beans>
I see the first issue in your config:
directory="c:\messagesoutput.txt"
it really must be a directory not a file path.
Another concern. It isn't clear if you want to create a file for each message or just add them all to the same.
For the last case use mode="APPEND".
For the fileName you can use filename-generator-expression="'messagesoutput.txt'".
And, please, don't mix different versions of Spring Integration jars. And try to use versionless schemaLocation.
`
classpath:database.properties
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource">
<ref bean="dataSource" />
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
</props>
</property>
<property name="packagesToScan" value="org.entity">
</property>
</bean>
<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<tx:annotation-driven/>
<!-- not working -->
<!-- <context:component-scan base-package="org.service"></context:component-scan> -->
`
this is my spring configuration file. Problem is that i am not getting current session in my repository classes which are marked with #Repository, I have annotated my service methods with #Transactional annotation.
However all the autowiring is working fine, the only problem is when i try to get current session in repository classes, and if I use bean tag to instantiate my repository and service beans it works. What am i doing wrong here?
Use the OpenSessionInView Filter or similar, that way you should have a Session available during the request lifecycle (Controller/ View rendering).
I have three enviornment variables.
MY_TOPIC
MY_CONTEXT_FACTORY
MY_LDAP
First one - MY_TOPIC works like this
<bean id="myPublishTopic" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiTemplate">
<ref bean="jndiTemplate"/>
</property>
<property name="jndiName">
<value>fxClientDestinationUID=${MY_TOPIC}</value>
</property>
</bean>
Last two does not work reading from enviornment variables. How do it make this work?
<bean id="jndiTemplate" class="org.springframework.jndi.JndiTemplate">
<property name="environment">
<props>
<prop key="java.naming.factory.initial">${MY_CONTEXT_FACTORY}</prop>
<prop key="java.naming.provider.url">${MY_LDAP}</prop>
</props>
</property>
</bean>
Last two works only if i read it from properties file which i want to avoid.
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location"><value>/WEB-INF/classes/springConfig-devel.properties</value></property>
</bean>
If you are using Spring 3+ you can use Spring Expression Language.
Use #{systemEnvironment['NAME']} to access environment variables
<bean id="jndiTemplate" class="org.springframework.jndi.JndiTemplate">
<property name="environment">
<props>
<prop key="java.naming.factory.initial">#{systemEnvironment['MY_CONTEXT_FACTORY']}</prop>
<prop key="java.naming.provider.url">#{systemEnvironment['MY_LDAP']}</prop>
</props>
</property>
</bean>
Use #{systemProperties['value']} for Java system properties.
It is a bit of followup to my previous question
Spring and Hibernate - changing dialect
if for example I have this piece of .xml
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean">
<property name="persistenceUnitName" value="SpringMVCTest" />
<property name="jpaProperties">
<props>
<prop key="hibernate.dialect" >
</prop>
</props>
</property>
</bean>
now, I wanted to set hibernate.dialect to value that is exposed by jndi by jdbc/dialect, but when I put <jee:jndi-lookup jndi-name="jdbc/MyDataSource"/> I am getting Invalid content was found starting with element 'jee:jndi-lookup'. No child element is expected at this so I suspect that I can't put any tags in prop.
So, is there any way I can insert jndi resource to this property?
Not completely sure, but you should be able to use Spring-EL here, like this:
<jee:jndi-lookup id="dialect" jndi-name="..." />
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean">
<property name="persistenceUnitName" value="SpringMVCTest" />
<property name="jpaProperties">
<props>
<prop key="hibernate.dialect" >#{dialect}</prop>
</props>
</property>
</bean>