On Tue, Sep 1, 2009 at 5:07 AM, Martin Gainty<mgai...@hotmail.com> wrote:
> both the entries <Context><Resource> and web.xml <resource-ref> reference
> ContextResource
>
> //WebAnnotationSet.java
> protected static void addResource(Context context, Resource annotation)
> {
>
> //if the annotation is
> DataSource,ConnectionFactory,QueueConnectionFactory,TopicConnectionFactory,Session,URL
> // then reference <Context><Resource> from applicationContext
> if
> (annotation.type().getCanonicalName().equals("javax.sql.DataSource") ||
>
> annotation.type().getCanonicalName().equals("javax.jms.ConnectionFactory")
> ||
> annotation.type().getCanonicalName()
> .equals("javax.jms.QueueConnectionFactory") ||
> annotation.type().getCanonicalName()
> .equals("javax.jms.TopicConnectionFactory") ||
>
> annotation.type().getCanonicalName().equals("javax.mail.Session") ||
> annotation.type().getCanonicalName().equals("java.net.URL")
> ||
> annotation.type().getCanonicalName()
> .equals("javax.resource.cci.ConnectionFactory") ||
>
> annotation.type().getCanonicalName().equals("org.omg.CORBA_2_3.ORB") ||
>
> annotation.type().getCanonicalName().endsWith("ConnectionFactory")) {
>
> //Construct <Context><Resource> from annotation input
> ContextResource resource = new ContextResource();
>
> /*The input annotation is used to populate the <Context><Resource>
> parameters */
>
> resource.setName(annotation.name());
> resource.setType(annotation.type().getCanonicalName());
>
> if (annotation.authenticationType()
> == Resource.AuthenticationType.CONTAINER) {
> resource.setAuth("Container");
> }
> else if (annotation.authenticationType()
> == Resource.AuthenticationType.APPLICATION) {
> resource.setAuth("Application");
> }
> resource.setScope(annotation.shareable() ? "Shareable" :
> "Unshareable");
> resource.setProperty("mappedName", annotation.mappedName());
> resource.setDescription(annotation.description());
>
> //finally add it to ApplicationContext.xml here
> context.getNamingResources().addResource(resource);
>
> ///////////////////////////////web.xml
> <resource-ref>///////////////////////////////////////////////////////////
> web.xml <resource-ref> is created here on config init()
> called in ContextConfiguration init()
> protected void init() {
> // Called from StandardContext.init()
>
> if (webDigester == null){
> webDigester = createWebDigester();
> webDigester.getParser();
> }
>
> if (contextDigester == null){
> contextDigester = createContextDigester();
> contextDigester.getParser();
> }
>
> if (log.isDebugEnabled())
> log.debug(sm.getString("contextConfig.init"));
> context.setConfigured(false);
> ok = true;
>
> contextConfig();
>
> try {
> fixDocBase();
> } catch (IOException e) {
> log.error(sm.getString("contextConfig.fixDocBase"), e);
> }
>
> }
>
> Digester.java calls CreateContextDigester
> /**
> * Create (if necessary) and return a Digester configured to process the
> * context configuration descriptor for an application.
> */
> protected Digester createContextDigester() {
> Digester digester = new Digester();
> digester.setValidating(false);
> RuleSet contextRuleSet = new ContextRuleSet("", false);
> digester.addRuleSet(contextRuleSet);
> RuleSet namingRuleSet = new NamingRuleSet("Context/");
> digester.addRuleSet(namingRuleSet);
> return digester;
> }
>
> called in Digester calls addRuleSet
> public void addRuleSet(RuleSet ruleSet) {
>
> String oldNamespaceURI = getRuleNamespaceURI();
> String newNamespaceURI = ruleSet.getNamespaceURI();
> if (log.isDebugEnabled()) {
> if (newNamespaceURI == null) {
> log.debug("addRuleSet() with no namespace URI");
> } else {
> log.debug("addRuleSet() with namespace URI " +
> newNamespaceURI);
> }
> }
> setRuleNamespaceURI(newNamespaceURI);
> ruleSet.addRuleInstances(this);
> setRuleNamespaceURI(oldNamespaceURI);
> }
>
> org.apache.catalina.startup.WebRuleSet.java
> public void addRuleInstances(Digester digester) {
> ............
> digester.addObjectCreate(prefix + "web-app/resource-ref",
>
> "org.apache.catalina.deploy.ContextResource");
> digester.addRule(prefix + "web-app/resource-ref",
> new SetNextNamingRule("addResource",
> "org.apache.catalina.deploy.ContextResource"));
>
> digester.addCallMethod(prefix + "web-app/resource-ref/description",
> "setDescription", 0);
> digester.addCallMethod(prefix + "web-app/resource-ref/res-auth",
> "setAuth", 0);
> digester.addCallMethod(prefix + "web-app/resource-ref/res-ref-name",
> "setName", 0);
> digester.addCallMethod(prefix +
> "web-app/resource-ref/res-sharing-scope",
> "setScope", 0);
> digester.addCallMethod(prefix + "web-app/resource-ref/res-type",
> "setType", 0);
> ......
> }
>
> as far as I can see the web.xml <resource-ref> is never 'read'
That's a very good analysis! This is really interesting and remarkable
that so many Tomcat developers always dutifully provided resource-ref
(since the documentation and all examples basically said to use it),
but as it appears the element is thus indeed ignored.
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