public void configureContextHandler() throws Exception {
if (_configured) return;
_configured = true;
// Override for bundle root may have been set
String bundleOverrideLocation =
(String) _properties.get(OSGiWebappConstants.JETTY_BUNDLE_INSTALL_LOCATION_OVERRIDE);
if (bundleOverrideLocation == null)
bundleOverrideLocation =
(String)
_properties.get(OSGiWebappConstants.SERVICE_PROP_BUNDLE_INSTALL_LOCATION_OVERRIDE);
// Location on filesystem of bundle or the bundle override location
File bundleLocation =
BundleFileLocatorHelperFactory.getFactory().getHelper().getBundleInstallLocation(_bundle);
File root =
(bundleOverrideLocation == null ? bundleLocation : new File(bundleOverrideLocation));
Resource rootResource =
Resource.newResource(
BundleFileLocatorHelperFactory.getFactory()
.getHelper()
.getLocalURL(root.toURI().toURL()));
// try and make sure the rootResource is useable - if its a jar then make it a jar file url
if (rootResource.exists()
&& !rootResource.isDirectory()
&& !rootResource.toString().startsWith("jar:")) {
Resource jarResource = JarResource.newJarResource(rootResource);
if (jarResource.exists() && jarResource.isDirectory()) rootResource = jarResource;
}
// Set the base resource of the ContextHandler, if not already set, can also be overridden by
// the context xml file
if (_contextHandler != null && _contextHandler.getBaseResource() == null) {
_contextHandler.setBaseResource(rootResource);
}
// Use a classloader that knows about the common jetty parent loader, and also the bundle
OSGiClassLoader classLoader =
new OSGiClassLoader(getServerInstanceWrapper().getParentClassLoaderForWebapps(), _bundle);
// if there is a context file, find it and apply it
if (_contextFile == null && _contextHandler == null)
throw new IllegalStateException("No context file or ContextHandler");
if (_contextFile != null) {
// apply the contextFile, creating the ContextHandler, the DeploymentManager will register
// it in the ContextHandlerCollection
Resource res = null;
// try to find the context file in the filesystem
if (_contextFile.startsWith("/")) res = getFileAsResource(_contextFile);
// try to find it relative to jetty home
if (res == null) {
// See if the specific server we are related to has jetty.home set
String jettyHome =
(String)
getServerInstanceWrapper()
.getServer()
.getAttribute(OSGiServerConstants.JETTY_HOME);
if (jettyHome != null) res = getFileAsResource(jettyHome, _contextFile);
// try to see if a SystemProperty for jetty.home is set
if (res == null) {
jettyHome = System.getProperty(OSGiServerConstants.JETTY_HOME);
if (jettyHome != null) {
if (jettyHome.startsWith("\"") || jettyHome.startsWith("'"))
jettyHome = jettyHome.substring(1);
if (jettyHome.endsWith("\"") || (jettyHome.endsWith("'")))
jettyHome = jettyHome.substring(0, jettyHome.length() - 1);
res = getFileAsResource(jettyHome, _contextFile);
if (LOG.isDebugEnabled()) LOG.debug("jetty home context file:" + res);
}
}
}
// try to find it relative to an override location that has been specified
if (res == null) {
if (bundleOverrideLocation != null) {
res =
getFileAsResource(
Resource.newResource(bundleOverrideLocation).getFile(), _contextFile);
if (LOG.isDebugEnabled()) LOG.debug("Bundle override location context file:" + res);
}
}
// try to find it relative to the bundle in which it is being deployed
if (res == null) {
if (_contextFile.startsWith("./")) _contextFile = _contextFile.substring(1);
if (!_contextFile.startsWith("/")) _contextFile = "/" + _contextFile;
URL contextURL = _bundle.getEntry(_contextFile);
if (contextURL != null) res = Resource.newResource(contextURL);
}
// apply the context xml file, either to an existing ContextHandler, or letting the
// it create the ContextHandler as necessary
if (res != null) {
ClassLoader cl = Thread.currentThread().getContextClassLoader();
LOG.debug("Context classloader = " + cl);
try {
Thread.currentThread().setContextClassLoader(classLoader);
XmlConfiguration xmlConfiguration = new XmlConfiguration(res.getInputStream());
HashMap properties = new HashMap();
// put the server instance in
properties.put("Server", getServerInstanceWrapper().getServer());
// put in the location of the bundle root
properties.put("bundle.root", rootResource.toString());
// insert the bundle's location as a property.
xmlConfiguration.getProperties().putAll(properties);
if (_contextHandler == null)
_contextHandler = (ContextHandler) xmlConfiguration.configure();
else xmlConfiguration.configure(_contextHandler);
} finally {
Thread.currentThread().setContextClassLoader(cl);
}
}
}
// Set up the class loader we created
_contextHandler.setClassLoader(classLoader);
// If a bundle/service property specifies context path, let it override the context xml
String contextPath = (String) _properties.get(OSGiWebappConstants.RFC66_WEB_CONTEXTPATH);
if (contextPath == null)
contextPath = (String) _properties.get(OSGiWebappConstants.SERVICE_PROP_CONTEXT_PATH);
if (contextPath != null) _contextHandler.setContextPath(contextPath);
// osgi Enterprise Spec r4 p.427
_contextHandler.setAttribute(
OSGiWebappConstants.OSGI_BUNDLECONTEXT, _bundle.getBundleContext());
// make sure we protect also the osgi dirs specified by OSGi Enterprise spec
String[] targets = _contextHandler.getProtectedTargets();
int length = (targets == null ? 0 : targets.length);
String[] updatedTargets = null;
if (targets != null) {
updatedTargets =
new String[length + OSGiWebappConstants.DEFAULT_PROTECTED_OSGI_TARGETS.length];
System.arraycopy(targets, 0, updatedTargets, 0, length);
} else updatedTargets = new String[OSGiWebappConstants.DEFAULT_PROTECTED_OSGI_TARGETS.length];
System.arraycopy(
OSGiWebappConstants.DEFAULT_PROTECTED_OSGI_TARGETS,
0,
updatedTargets,
length,
OSGiWebappConstants.DEFAULT_PROTECTED_OSGI_TARGETS.length);
_contextHandler.setProtectedTargets(updatedTargets);
}
