使用Groovy命令行脚本提取Java Spring Beans如何停止NoSuchBeanDefinitionException？

Question

I have written this Groovy script to load and execute some Java Spring Beans:

    @GrabResolver(name = 'libs.snapshot', root = 'http://ml1002pc:8081/artifactory/libs-snapshot', m2compatible = 'true')
    @Grapes([
    @Grab(group = 'com.siemens.soarian.sf', module = 'BuildInformationService', version = '1.0-SNAPSHOT', changing = true),
    @Grab(group = 'com.siemens.soarian.sf', module = 'GapAnalyzer', version = '1.0-SNAPSHOT', changing = true)
    ])

    @GrabResolver(name = 'libs-release', root = 'http://ml1002pc:8081/artifactory/libs-release', m2compatible = 'true')
    @Grapes([
    @Grab(group = 'org.springframework', module = 'org.springframework.context', version = '3.0.5.RELEASE'),
    @Grab(group = 'org.springframework', module = 'org.springframework.context.support', version = '3.0.5.RELEASE'),
    @Grab(group = 'org.springframework', module = 'org.springframework.core', version = '3.0.5.RELEASE'),
    @Grab(group = 'org.springframework', module = 'org.springframework.beans', version = '3.0.5.RELEASE'),
    @Grab(group = 'org.springframework', module = 'org.springframework.asm', version = '3.0.5.RELEASE'),
    @Grab(group = 'org.springframework', module = 'org.springframework.aop', version = '3.0.5.RELEASE'),
    @Grab(group = 'org.springframework', module = 'org.springframework.aspects', version = '3.0.5.RELEASE'),
    @Grab(group = 'org.springframework', module = 'org.springframework.expression', version = '3.0.5.RELEASE'),
    @Grab('org.apache.commons:commons-lang:2.6'),
    @Grab('org.apache.commons:commons-collections:3.2.1'),
    @Grab('org.apache.commons:commons-logging:1.1.1'),
    @Grab('org.apache.commons:commons-dbcp:1.4'),
    @Grab('org.apache.commons:commons-pool:1.6'),
    @Grab('com.microsoft:sqljdbc:1.2'),
    ])
    @GrabConfig(systemClassLoader = true)

    import java.util.Collection;
    import java.util.List;

    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;

    import com.siemens.soarian.sf.build.BuildInformationService;
    import com.siemens.soarian.sf.gap.*

    public class CommandLineWrapper {

        public static void main(String[] args) {
            ApplicationContext ctx = new ClassPathXmlApplicationContext("classpath*:**/META-INF/applicationContext*.xml");

            GapAnalyzer gapAnalyzer = (GapAnalyzer) ctx.getBean("gapAnalyzer");
        }
    }

The application context I am trying to load has this bean declaration:

    <bean id="gapAnalyzer" class="com.siemens.soarian.sf.gap.GapAnalyzerImpl">
    <constructor-arg ref="buildInformationService"/>
    </bean> 

The exception I get at command line is:

INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@14f1726: startup date [Mon Jan 21 10:46:04 EST 2013 ]; root of context hierarchy 
Jan 21, 2013 10:46:04 AM org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@1e22c75: defining beans []; root of factory hierarchy
Caught: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'gapAnalyzer' is defined
org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'gapAnalyzer' is defined
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:527)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1083)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:274)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
        at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1075)
        at org.springframework.beans.factory.BeanFactory$getBean.call(Unknown Source)

However, running this script causes a NoSuchBeanDefinitionException on line 40 as if Spring cannot find the bean spec.

If I use a Spring partial integration test written in Java and running in Eclipse I can load the bean and the other beans it needs just fine. It loads as expected.

I inspected the jars downloaded by Grape located at my Windows Home /.groovy and all jars are present.

Based on my reading of Adding Things to the Classpath Grape should be taking care of getting these jars on my classpath.

I am running:

• Windows XP
• Eclipse Juno
• Groovy 2.0.6
• Sun JVM: 1.6.0_33
• Spring 3.0.5.RELEASE
• Artifactory 2.3.4

Answer 1

I have found out by working on a Grails project using the same services that I am able to get Groovy Grapes to download the dependencies and Spring to resolve them is I simply do this:

ApplicationContext ctx = new  ClassPathXmlApplicationContext("classpath*:META-INF/applicationContext.xml");

The key differences is I cleaned up the classpath pattern. The other patterns all failed both in my Grails app and here.

Answer 2

Give your bean a name attribute and pass that to getBean instead of the id .

Edit:

You should be seeing something like this being logged:

INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@318a41cf: startup date [Mon Jan 21 20:51:21 MST 2013]; root of context hierarchy
INFO: Loading XML bean definitions from file [./META-INF/spring-conf.xml]
INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@4ed1102f: defining beans [gapAnalyzer]; root of factory hierarchy

In particular, it should show a message with the file name and list the declared beans. If you're not seeing this, the XML configuration file is not being read. Spring fails silently if it can't find it.

Answer 3

This script:

@Grab('org.springframework:spring-context:3.2.1.RELEASE')
@Grab('org.apache.commons:commons-lang3:3.1')
@GrabConfig(systemClassLoader = true)
import org.springframework.context.support.ClassPathXmlApplicationContext

def ctx = new ClassPathXmlApplicationContext("classpath:applicationContext.xml")
def su = ctx.getBean('su')
assert su.swapCase('Fee Fi Fo Fum') == 'fEE fI fO fUM'

With this XML file in the same directory works for me:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
   <bean id="su" class="org.apache.commons.lang3.StringUtils"/>
</beans>

Answer 4

I don't think the ClassPathXmlApplicationContext ever expands its constructor argument into a Resource[] array. So Spring thinks you are trying to create a context from a non-existent (single) file called **/META-INF/applicationContext*.xml . Unsurprisingly that doesn't work (and wouldn't work in Java or Groovy). The ant-style patterns are only expanded when a String needs to be converted to a Resource[] , for instance when specifying an <import/> in XML. If you want to do it without an import I suggest you use the ResourceArrayPropertyEditor directly in conjunction with a GenericXmlApplicationContext (which accepts a Resource[] as a constructor argument).