/* (non-Javadoc)
* @see com.googlecode.psiprobe.beans.ResourceResolver#lookupDataSource(org.apache.catalina.Context, java.lang.String, com.googlecode.psiprobe.beans.ContainerWrapperBean)
*/
public synchronized DataSource lookupDataSource(
final Context context, String resourceName, ContainerWrapperBean containerWrapper)
throws NamingException {
if (context != null) {
((AbstractTomcatContainer) containerWrapper.getTomcatContainer()).bindToContext(context);
}
try {
javax.naming.Context ctx =
(context != null) ? new InitialContext() : getGlobalNamingContext();
String jndiName = resolveJndiName(resourceName, (context == null));
Object obj = ctx.lookup(jndiName);
if (obj instanceof DataSource) {
return (DataSource) obj;
} else {
return null;
}
} finally {
if (context != null) {
((AbstractTomcatContainer) containerWrapper.getTomcatContainer())
.unbindFromContext(context);
}
}
}
/* (non-Javadoc)
* @see com.googlecode.psiprobe.beans.ResourceResolver#resetResource(org.apache.catalina.Context, java.lang.String, com.googlecode.psiprobe.beans.ContainerWrapperBean)
*/
public synchronized boolean resetResource(
final Context context, String resourceName, ContainerWrapperBean containerWrapper)
throws NamingException {
if (context != null) {
((AbstractTomcatContainer) containerWrapper.getTomcatContainer()).bindToContext(context);
}
try {
javax.naming.Context ctx =
(context != null) ? new InitialContext() : getGlobalNamingContext();
String jndiName = resolveJndiName(resourceName, (context == null));
Object obj = ctx.lookup(jndiName);
try {
for (DatasourceAccessor accessor : datasourceMappers) {
if (accessor.reset(obj)) {
return true;
}
}
return false;
} catch (Throwable e) {
//
// make sure we always re-throw ThreadDeath
//
if (e instanceof ThreadDeath) {
throw (ThreadDeath) e;
}
return false;
}
} finally {
if (context != null) {
((AbstractTomcatContainer) containerWrapper.getTomcatContainer())
.unbindFromContext(context);
}
}
}
/* (non-Javadoc)
* @see com.googlecode.psiprobe.beans.ResourceResolver#getApplicationResources(org.apache.catalina.Context, com.googlecode.psiprobe.beans.ContainerWrapperBean)
*/
public synchronized List<ApplicationResource> getApplicationResources(
Context context, ContainerWrapperBean containerWrapper) throws NamingException {
List<ApplicationResource> resourceList = new ArrayList<ApplicationResource>();
boolean contextAvailable = containerWrapper.getTomcatContainer().getAvailable(context);
if (contextAvailable) {
logger.info("Reading CONTEXT " + context.getName());
boolean contextBound = false;
try {
((AbstractTomcatContainer) containerWrapper.getTomcatContainer()).bindToContext(context);
contextBound = true;
} catch (NamingException e) {
logger.error("Cannot bind to context. useNaming=false ?");
logger.debug(" Stack trace:", e);
}
try {
containerWrapper
.getTomcatContainer()
.addContextResource(context, resourceList, contextBound);
containerWrapper
.getTomcatContainer()
.addContextResourceLink(context, resourceList, contextBound);
for (ApplicationResource resourceList1 : resourceList) {
lookupResource(resourceList1, contextBound, false);
}
} finally {
if (contextBound) {
((AbstractTomcatContainer) containerWrapper.getTomcatContainer())
.unbindFromContext(context);
}
}
}
return resourceList;
}
/**
* Creates Application instance from Tomcat Context object. If ResourceResolver is passed the
* method will also collect additional information about the application such as session count,
* session attribute count, application attribute count, servlet count, servlet stats summary and
* datasource usage summary. Collecting additional information can be CPU intensive and time
* consuming so this should be avoided unless absolutely required. Some datasource implementations
* (c3p0) are known to be prone to internal deadlocks, so this method can also hang is datasource
* usage stats is to be collected.
*
* @param context the context from which to create the Application
* @param resourceResolver the resolver to use for resources associated with the given context
* @param calcSize flag which controls whether to calculate session size
* @param containerWrapper the wrapper for the context's root containing server
* @return Application object
*/
public static Application getApplication(
Context context,
ResourceResolver resourceResolver,
boolean calcSize,
ContainerWrapperBean containerWrapper) {
// ContainerWrapperBean containerWrapper
logger.debug("Querying webapp: " + context.getName());
Application app = new Application();
app.setName(context.getName().length() > 0 ? context.getName() : "/");
app.setDocBase(context.getDocBase());
app.setDisplayName(context.getDisplayName());
app.setAvailable(containerWrapper.getTomcatContainer().getAvailable(context));
app.setDistributable(context.getDistributable());
app.setSessionTimeout(context.getSessionTimeout());
app.setServletVersion(
context.getServletContext().getMajorVersion()
+ "."
+ context.getServletContext().getMinorVersion());
if (resourceResolver != null) {
logger.debug("counting servlet attributes");
int ctxAttrCount = 0;
for (Enumeration e = context.getServletContext().getAttributeNames();
e.hasMoreElements();
e.nextElement()) {
ctxAttrCount++;
}
app.setContextAttributeCount(ctxAttrCount);
if (app.isAvailable()) {
logger.debug("collecting session information");
app.setSessionCount(context.getManager().findSessions().length);
boolean serializable = true;
int sessionAttributeCount = 0;
long size = 0;
for (Session session : context.getManager().findSessions()) {
ApplicationSession appSession = getApplicationSession(session, calcSize, false);
if (appSession != null) {
sessionAttributeCount += appSession.getObjectCount();
serializable = serializable && appSession.isSerializable();
size += appSession.getSize();
}
}
app.setSerializable(serializable);
app.setSessionAttributeCount(sessionAttributeCount);
app.setSize(size);
}
logger.debug("aggregating servlet stats");
collectApplicationServletStats(context, app);
if (resourceResolver.supportsPrivateResources() && app.isAvailable()) {
int[] scores =
getApplicationDataSourceUsageScores(context, resourceResolver, containerWrapper);
app.setDataSourceBusyScore(scores[0]);
app.setDataSourceEstablishedScore(scores[1]);
}
}
return app;
}
public static List getApplicationFilters(Context context, ContainerWrapperBean containerWrapper) {
return containerWrapper.getTomcatContainer().getApplicationFilters(context);
}
