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package org.glassfish.jspcaching.integration;
import java.net.*;
import java.text.MessageFormat;
import java.util.*;
import java.util.logging.*;
import java.util.regex.Pattern;
import org.glassfish.api.admin.ServerEnvironment;
import org.glassfish.api.web.TldProvider;
import org.glassfish.internal.api.ServerContext;
import org.jvnet.hk2.annotations.Scoped;
import org.jvnet.hk2.annotations.Service;
import org.jvnet.hk2.annotations.Inject;
import org.jvnet.hk2.component.PostConstruct;
import org.jvnet.hk2.component.Singleton;
import com.sun.enterprise.config.serverbeans.Config;
import com.sun.enterprise.config.serverbeans.WebContainer;
import com.sun.enterprise.util.net.JarURIPattern;
import com.sun.enterprise.module.Module;
import com.sun.enterprise.module.ModulesRegistry;
import com.sun.logging.LogDomains;
import com.sun.appserv.web.taglibs.cache.CacheTag;
/**
* Implementation of TldProvider for JSP caching taglib.
*/
@Service(name="jspCachingTld")
@Scoped(Singleton.class)
public class GlassFishTldProvider
implements TldProvider, PostConstruct {
private static final Logger logger =
LogDomains.getLogger(GlassFishTldProvider.class,
LogDomains.WEB_LOGGER);
private static final ResourceBundle rb = logger.getResourceBundle();
@Inject
ServerContext serverContext;
@Inject
ModulesRegistry registry;
private Map<URI, List<String>> tldMap =
new HashMap<URI, List<String>>();
/**
* Gets the name of this TldProvider
*/
public String getName() {
return "jspCachingTld";
}
/**
* Gets a mapping from JAR files to their TLD resources.
*/
public Map<URI, List<String>> getTldMap() {
return (tldMap == null) ? null :
(Map<URI, List<String>>)((HashMap)tldMap).clone();
}
/**
* Gets a mapping from JAR files to their TLD resources
* that are known to contain listener declarations
*/
public Map<URI, List<String>> getTldListenerMap() {
return getTldMap();
}
public void postConstruct() {
/*
* Check whether JSP caching has been enabled
*/
Config cfg = serverContext.getDefaultHabitat().getComponent(
Config.class, ServerEnvironment.DEFAULT_INSTANCE_NAME);
WebContainer webContainer = cfg.getWebContainer();
if (webContainer == null) {
return;
}
if (!Boolean.valueOf(webContainer.getJspCachingEnabled())) {
return;
}
/*
* JSP caching has been enabled
*/
Class jspCachingImplClass = CacheTag.class;
URI[] uris = null;
Module m = null;
if (jspCachingImplClass != null) {
m = registry.find(jspCachingImplClass);
}
if (m != null) {
uris = m.getModuleDefinition().getLocations();
} else {
ClassLoader classLoader = getClass().getClassLoader();
if (classLoader instanceof URLClassLoader) {
URL[] urls = ((URLClassLoader)classLoader).getURLs();
if (urls != null && urls.length > 0) {
uris = new URI[urls.length];
for (int i = 0; i < urls.length; i++) {
try {
uris[i] = urls[i].toURI();
} catch(URISyntaxException e) {
String msg = rb.getString("tldProvider.ignoreUrl");
msg = MessageFormat.format(msg, urls[i]);
logger.log(Level.WARNING, msg, e);
}
}
}
} else {
logger.log(Level.WARNING,
"taglibs.unableToDetermineTldResources",
new Object[] {"JSP Caching", classLoader,
GlassFishTldProvider.class.getName()});
}
}
if (uris != null && uris.length > 0) {
Pattern pattern = Pattern.compile("META-INF/.*\\.tld");
for (URI uri : uris) {
List entries = JarURIPattern.getJarEntries(uri, pattern);
if (entries != null && entries.size() > 0) {
tldMap.put(uri, entries);
}
}
}
}
}