protected String getPathsToRequiredBundles(String requireTldBundles) throws Exception {
if (requireTldBundles == null) return null;
ServiceReference ref =
_bundle
.getBundleContext()
.getServiceReference(org.osgi.service.packageadmin.PackageAdmin.class.getName());
PackageAdmin packageAdmin =
(ref == null) ? null : (PackageAdmin) _bundle.getBundleContext().getService(ref);
if (packageAdmin == null)
throw new IllegalStateException(
"Unable to get PackageAdmin reference to locate required Tld bundles");
StringBuilder paths = new StringBuilder();
String[] symbNames = requireTldBundles.split(", ");
for (String symbName : symbNames) {
Bundle[] bs = packageAdmin.getBundles(symbName, null);
if (bs == null || bs.length == 0) {
throw new IllegalArgumentException(
"Unable to locate the bundle '"
+ symbName
+ "' specified by "
+ OSGiWebappConstants.REQUIRE_TLD_BUNDLE
+ " in manifest of "
+ (_bundle == null ? "unknown" : _bundle.getSymbolicName()));
}
File f =
BundleFileLocatorHelperFactory.getFactory().getHelper().getBundleInstallLocation(bs[0]);
if (paths.length() > 0) paths.append(", ");
paths.append(f.toURI().toURL().toString());
LOG.debug(
"getPathsToRequiredBundles: bundle path=" + bs[0].getLocation() + " uri=" + f.toURI());
}
return paths.toString();
}
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);
}
public void configureWebApp() throws Exception {
// TODO turn this around and let any context.xml file get applied first, and have the
// properties override
_webApp.setContextPath(_contextPath);
// osgi Enterprise Spec r4 p.427
_webApp.setAttribute(OSGiWebappConstants.OSGI_BUNDLECONTEXT, _bundle.getBundleContext());
String overrideBundleInstallLocation =
(String) _properties.get(OSGiWebappConstants.JETTY_BUNDLE_INSTALL_LOCATION_OVERRIDE);
File bundleInstallLocation =
(overrideBundleInstallLocation == null
? BundleFileLocatorHelperFactory.getFactory()
.getHelper()
.getBundleInstallLocation(_bundle)
: new File(overrideBundleInstallLocation));
URL url = null;
Resource rootResource =
Resource.newResource(
BundleFileLocatorHelperFactory.getFactory()
.getHelper()
.getLocalURL(bundleInstallLocation.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;
}
// if the path wasn't set or it was ., then it is the root of the bundle's installed location
if (_webAppPath == null || _webAppPath.length() == 0 || ".".equals(_webAppPath)) {
url = bundleInstallLocation.toURI().toURL();
} else {
// Get the location of the root of the webapp inside the installed bundle
if (_webAppPath.startsWith("/") || _webAppPath.startsWith("file:")) {
url = new File(_webAppPath).toURI().toURL();
} else if (bundleInstallLocation != null && bundleInstallLocation.isDirectory()) {
url = new File(bundleInstallLocation, _webAppPath).toURI().toURL();
} else if (bundleInstallLocation != null) {
Enumeration<URL> urls =
BundleFileLocatorHelperFactory.getFactory()
.getHelper()
.findEntries(_bundle, _webAppPath);
if (urls != null && urls.hasMoreElements()) url = urls.nextElement();
}
}
if (url == null) {
throw new IllegalArgumentException(
"Unable to locate "
+ _webAppPath
+ " in "
+ (bundleInstallLocation != null
? bundleInstallLocation.getAbsolutePath()
: "unlocated bundle '" + _bundle.getSymbolicName() + "'"));
}
// Sets the location of the war file
// converts bundleentry: protocol if necessary
_webApp.setWar(
BundleFileLocatorHelperFactory.getFactory().getHelper().getLocalURL(url).toString());
// Set up what has been configured on the provider
_webApp.setParentLoaderPriority(isParentLoaderPriority());
_webApp.setExtractWAR(isExtract());
if (getConfigurationClasses() != null)
_webApp.setConfigurationClasses(getConfigurationClasses());
else _webApp.setConfigurationClasses(__defaultConfigurations);
if (getDefaultsDescriptor() != null) _webApp.setDefaultsDescriptor(getDefaultsDescriptor());
// Set up configuration from manifest headers
// extra classpath
String tmp = (String) _properties.get(OSGiWebappConstants.JETTY_EXTRA_CLASSPATH);
if (tmp != null) _webApp.setExtraClasspath(tmp);
// web.xml
tmp = (String) _properties.get(OSGiWebappConstants.JETTY_WEB_XML_PATH);
if (tmp != null && tmp.trim().length() != 0) {
File webXml = getFile(tmp, bundleInstallLocation);
if (webXml != null && webXml.exists()) _webApp.setDescriptor(webXml.getAbsolutePath());
}
// webdefault.xml
tmp = (String) _properties.get(OSGiWebappConstants.JETTY_DEFAULT_WEB_XML_PATH);
if (tmp != null) {
File defaultWebXml = getFile(tmp, bundleInstallLocation);
if (defaultWebXml != null) {
if (defaultWebXml.exists())
_webApp.setDefaultsDescriptor(defaultWebXml.getAbsolutePath());
else LOG.warn(defaultWebXml.getAbsolutePath() + " does not exist");
}
}
// Handle Require-TldBundle
// This is a comma separated list of names of bundles that contain tlds that this webapp uses.
// We add them to the webapp classloader.
String requireTldBundles = (String) _properties.get(OSGiWebappConstants.REQUIRE_TLD_BUNDLE);
String pathsToTldBundles = getPathsToRequiredBundles(requireTldBundles);
// make sure we provide access to all the jetty bundles by going
// through this bundle.
OSGiWebappClassLoader webAppLoader =
new OSGiWebappClassLoader(
_serverWrapper.getParentClassLoaderForWebapps(), _webApp, _bundle);
if (pathsToTldBundles != null) webAppLoader.addClassPath(pathsToTldBundles);
_webApp.setClassLoader(webAppLoader);
// apply any META-INF/context.xml file that is found to configure
// the webapp first
applyMetaInfContextXml(rootResource);
// pass the value of the require tld bundle so that the TagLibOSGiConfiguration
// can pick it up.
_webApp.setAttribute(OSGiWebappConstants.REQUIRE_TLD_BUNDLE, requireTldBundles);
// Set up some attributes
// rfc66
_webApp.setAttribute(
OSGiWebappConstants.RFC66_OSGI_BUNDLE_CONTEXT, _bundle.getBundleContext());
// spring-dm-1.2.1 looks for the BundleContext as a different attribute.
// not a spec... but if we want to support
// org.springframework.osgi.web.context.support.OsgiBundleXmlWebApplicationContext
// then we need to do this to:
_webApp.setAttribute(
"org.springframework.osgi.web." + BundleContext.class.getName(),
_bundle.getBundleContext());
// also pass the bundle directly. sometimes a bundle does not have a
// bundlecontext.
// it is still useful to have access to the Bundle from the servlet
// context.
_webApp.setAttribute(OSGiWebappConstants.JETTY_OSGI_BUNDLE, _bundle);
}