Usage of P6Spy with datasource in Spring applicationContext.xml - java

I am using Hibernate 4, Spring 3, JSF 2.0 and Weblogic 10.3.6 as server.
I have created datasource on Weblogic server and in applicationContext.xml I have defined datasource as
<!-- Data Source Declaration -->
<bean id="DataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiName" value="jdbc/​myDS"/>
</bean>
If I would want to use the P6Spy for logging SQL parameters, how can and where I should add the following in applicationcontext.xml?
<property name="hibernate.connection.driver_class">com.p6spy.engine.spy.
P6SpyDriver</property>
Any help is highly appreciable.
Thanks

The easiest way to integrate p6spy using spring is to use the P6DataSource class. The P6DataSource class is just a proxy for the real data source. This lets you obtain the real data source using any of the spring data source factory implementations.
<bean id="dataSource" class="com.p6spy.engine.spy.P6DataSource">
<constructor-arg>
<bean id="DataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiName" value="jdbc/​myDS"/>
</bean>
</constructor-arg>
</bean>
If you are using an XADatasource, just change the classname to P6ConnectionPoolDataSource as shown below. Note: P6ConnectionPoolDataSource implements the ConnectionPoolDataSource and XADataSource interfaces.
<bean id="dataSource" class="com.p6spy.engine.spy.P6ConnectionPoolDataSource">
<constructor-arg>
<bean id="DataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiName" value="jdbc/​myDS"/>
</bean>
</constructor-arg>
</bean>

You need to create bean of session factory in applicationContext.xml file as follows:
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource">
<ref bean="dataSource" />
</property>
</bean>
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.p6spy.engine.spy.
P6SpyDriver" />
<property name="url" value="jdbc\:mysql\://localhost\:3306/testdb" />
<property name="username" value="my_username" />
<property name="password" value="my_password" />
</bean>
Please refer to: http://www.mkyong.com/hibernate/how-to-display-hibernate-sql-parameter-values-solution/ for more about P6Spy library.
We can omit "dataSource" bean and directly write properties. Ref: how to configure hibernate config file for sql server

Related

Spring MVC 3.2.8: Create a new FileSystemXmlApplicationContext and loading the definitions from the given XML files

I have an Spring MVC 3.2.8 app, and I want to run StandAlone process to generate a PDF. I want to initialize the container and manage beans from an stand-alone app.
I have this piece of code:
public class CreatePDF {
private static final Logger LOGGER = Logger.getLogger (ImportEcolabelToolboxToECAT.class);
public static void main(String[] args) {
String[] configLocations = new String[] {
"C:/Development/Workspaces/EclipseWS/devices/deviceWeb/src/main/resources/com/nicinc/dao/dataAccessContext.xml",
"C:/Development/Workspaces/EclipseWS/devices/deviceWeb/src/main/webapp/WEB-INF/dao/databaseMessageSource.xml",
"C:/Development/Workspaces/EclipseWS/devices/deviceWeb/src/main/resources/com/nicinc/services/impl/servicesContext.xml",
"C:/Development/Workspaces/EclipseWS/devices/deviceWeb/src/main/webapp/WEB-INF/applicationContext.xml",
"C:/Development/Workspaces/EclipseWS/devices/deviceWeb/src/main/resources/com/nicinc/controller/propertyeditors/propertyeditorsContext.xml"};
FileSystemXmlApplicationContext ctx =
new FileSystemXmlApplicationContext(configLocations, true);
}
}
But I have this error when running the app.
Error creating bean with name 'dataSource': Invocation of init method failed; nested exception is javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
and here the definition from the file dataAccessContext.xml :
<!-- The PropertyPlaceholderConfigurer replaces placeholders in Spring bean definitions with the values from the chosen properties files. -->
<!-- There is an example use in the datasource definition below. Look for the $\{jdbc.*} values. -->
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:com/nicinc/dao/jdbc-test.properties</value>
<value>classpath:com/nicinc/dao/dbMessageSource.properties</value>
</list>
</property>
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
<property name="dataSource" ref="dataSource" />
</bean>
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
</bean>
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="persistenceXmlLocation" value="classpath*:META-INF/persistence.xml" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="databasePlatform" value="${hibernate.dialect}"/>
<property name="generateDdl" value="false"/>
<property name="showSql" value="false" />
</bean>
</property>
</bean>
<bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor" />
The javax.naming package comprises the JNDI Api. Since it is just an API its implementation you will have to provide. Generally the implementation is provided by App server. As per the error you are Missing the JNDI implementation.
Possible solution:
If you dont have any javaee related requirement then you should directly use DriverManagerDataSource.
You need to provide your own implementation.Below link might help.
using application data source locally.

Hibernate trying to find hibernate.cfg.xml when configured by spring

I have configured Hibernate(5.2.6) via spring(4.3.5) But when I run my Junit(4.12) tests it gives out an error saying that it could not locate hibernate.cfg.xml file. Can anyone help me out?
After I run the Junit test, tables are created in database but data is not added, I can see the sql queries being run as I have enables show_sql
did you specify hibernate configured xml file name in web.xml.?
if not specify name of xml file in web.xml
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:hibernateContext.xml</param-value>
</context-param>
How is applicationContext is configured for spring and hibernate integration?
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location">
<value>classpath:properties/jdbc.properties</value>
</property>
</bean>
<bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
</bean>
<!-- Hibernate session factory -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource">
<ref bean="dataSource" />
</property>
<property name="configLocation">
<value>classpath:hibernate/hibernate.cfg.xml</value>
</property>
</bean>

Get database information at runtime

In my web application (spring + tomcat), below is by applicationContext.xml. All the database information (username, password) is currently directly embedded. But now in our application, the server forks a new JVM instance and this new JVM instance needs to communicate with the same database.
<bean id="meetingDBSource"
class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close" p:initialSize="10" p:maxActive="50" p:minIdle="5"
p:maxIdle="35" p:driverClassName="com.mysql.jdbc.Driver"
p:url="jdbc:mysql://10.0.1.100/warehouse_mon?useLegacyDatetimeCode=false&useUnicode=true&serverTimezone=UTC&"
p:username="user" p:password="pass" p:testOnBorrow="true"
p:validationQuery="SELECT 1" />>
<bean id="appDB" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource">
<ref bean="meetingDBSource" />
</property>
</bean>
So I wish to pass the required information as arguments while launching it. Now what is the dignified way of getting this database information?
Initially in my applicationContext.xml, I made a map and inserted all the db information in the map. Using Spring special expressions, I was obtaining the values and then using them for BasicDataSource initialization. And in my code, using dependency injection I obtained access to this map and then obtained information.
But I guess there should be a more standard factory way of doing it. (Or probably using context-param and if so, how?)
I use it like this.
I have a database.properties file like this.
db.driverClassName=com.mysql.jdbc.Driver
db.connectionUrl=jdbc:mysql://localhost:3306/test
db.username=test
db.password=testpass
sql.use.db.data=false
sql.use.db.test.data=false
Then in applicationContext.xml I will configure
<!--property place holder bean -->
<bean id="propertyPlaceholder" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE"/>
<property name="ignoreResourceNotFound" value="false"/>
<property name="locations">
<list>
<value>classpath:/properties/database.properties</value>
</list>
</property>
Then datasource is configured like this
<!-- data source bean-->
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${db.driverClassName}"/>
<property name="url" value="${db.connectionUrl}"/>
<property name="username" value="${db.username}"/>
<property name="password" value="${db.password}"/>
</bean>
You can use #Value annotation to access the properties in that file.
#Value("${sql.use.db.data}")
private String use_data;

Spring Routing-source and connection pooling

I am using spring Routing data source as explained here and things works well. Now, I want to add connection pooling (Apache DBCP). I changed the basic data source to the connection pool data source. well, It does not work.
On the server start-up I see that connection pooling is happening and I can debug Apache's code, but then, when I am trying to access the DB through my code, I go to the routing data source, and from there to the DriverManager class to get a connection - completely ignoring Apache's code.
<bean id="catalogDataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.driverClass}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.user}" />
<property name="password" value="${jdbc.pwd}" />
</bean>
<bean id="pool" class="org.apache.commons.pool.impl.GenericObjectPool">
<property name="minEvictableIdleTimeMillis"><value>300000</value></property>
<property name="timeBetweenEvictionRunsMillis"><value>60000</value></property>
</bean>
<bean id="dsConnectionFactory" class="org.apache.commons.dbcp.DataSourceConnectionFactory">
<constructor-arg><ref bean="catalogDataSource"/></constructor-arg>
</bean>
<bean id="poolableConnectionFactory" class="org.apache.commons.dbcp.PoolableConnectionFactory">
<constructor-arg index="0"><ref bean="dsConnectionFactory"/></constructor-arg>
<constructor-arg index="1"><ref bean="pool"/></constructor-arg>
<constructor-arg index="2"><null/></constructor-arg>
<constructor-arg index="3"><null/></constructor-arg>
<constructor-arg index="4"><value>false</value></constructor-arg>
<constructor-arg index="5"><value>true</value></constructor-arg>
</bean>
<bean id="pooledDS" class="org.apache.commons.dbcp.PoolingDataSource" depends-on="poolableConnectionFactory">
<constructor-arg><ref bean="pool"/></constructor-arg>
</bean>
<bean id="routingDataSource" class="something that derived from RoutingDataSource">
<property name="defaultTargetDataSource" ref="pooledDS"/>
<property name="targetDataSources">
<map key-type="java.lang.Integer">
</map>
</property>
</bean>
Can you help me please - what did I do wrong?

how to get a spring declared datasource in an xml config file

i have a spring datasource which looks like this:
<bean id="dataSource1" destroy-method="close" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="${database.driver}" />
<property name="url" value="${database1.url}" />
<property name="username" value="${database1.username}" />
<property name="password" value="${database1.password}" />
</bean>
i need to make this available on jndi or jee. some related things:
<bean id="dataSourceJNDI1" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiName" value="java:comp/env/jdbc/dataSource1"/>
<property name="beanClassLoader" ref="dataSource1"></property>
</bean>
or maybe :
<jee:jndi-lookup id="dataSource" jndi-name="java:comp/env/jdbc/database1" />
not sure how to get the jndi or jee working with the dbcp. any help would be appreciated.
thanks in advance.
ps: guys this is a special needl. so i have to do it like this. please dont post unnecessary advices saying why i should use tomcat server as datasource. i am aware of setting datasource that way. i repeat again this is a special need. also please dont provide me java code solutions, not required.
ps: those who dont know how to do it, please do not occupy the space of this post saying its not possible. if you dont know the answer no need to post and junk the post.
You would need to bind the DataSource to the JNDI tree. You would need to supply the parameters for connecting to the local JNDI tree. JndiTemplate can do this. Some of the JNDI environment properties probably won't be necessary for a local InitialContext. I think "java.naming.factory.initial" is the only required. The other are for connecting to an out of process JNDI server:
<bean id="jndiTemplate" class="org.springframework.jndi.JndiTemplate">
<property name="environment">
<props>
<prop key="java.naming.provider.url">${jndi.provider.url}</prop>
<prop key="java.naming.factory.initial">${jndi.factory.initial}</prop>
<prop key="java.naming.security.principal">${jndi.security.principal}</prop>
<prop key="java.naming.security.credentials">${jndi.security.credentials}</prop>
</props>
</property>
</bean>
<bean factory-bean="jndiTemplate" factory-method="bind">
<constructor-arg type="java.lang.String" value="java:com/env/DataSoure"/>
<constructor-arg type="java.lang.Object" ref="dataSource"/>
</bean>
If you are performing a JNDI lookup in the same Spring context, you will either need to have the JNDI bean depends-on this lookup bean or make the JNDI lookup lazy so that it will perform the lookup on first use.
Since you are using jndi you have to declare the datasource as a jndi source.
<jee:jndi-lookup id="dataSource" jndi-name="java:comp/env/jdbc/database1" />
<bean id="dataSource1" destroy-method="close" class="org.apache.commons.dbcp.BasicDataSource">
<property name="dataSource" ref="dataSource" />
<property name="driverClassName" value="${database.driver}" />
<property name="url" value="${database1.url}" />
<property name="username" value="${database1.username}" />
<property name="password" value="${database1.password}" />
</bean>
That should work assuming your bean definition for dataSource1 is correct.

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