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package org.apache.tuscany.sca.test.util;
import java.io.File;
import java.io.FilenameFilter;
import java.lang.reflect.Method;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.BundleException;
/**
* Load Tuscany into an OSGi runtime
*
*/
public class TuscanyLoader {
private static final String tuscanyInstallerDir = "../tuscany-osgi-installer";
private static final String tuscanyInstallerJar = "tuscany-sca-osgi-installer.jar";
// 5-bundle version of Tuscany
private static final String scaApiDir = "../sca-api";
private static final String tuscanySpiDir = "../tuscany-spi";
private static final String tuscanyRuntimeDir = "../tuscany-runtime";
private static final String tuscanyExtensionsDir = "../tuscany-extensions";
private static final String thirdPartyDir = "../tuscany-3rdparty";
private static String findBundle(String subDirName, final String jarPrefix) throws Exception {
File dir = new File(subDirName + "/target");
if (dir.exists() && dir.isDirectory()) {
File[] files = dir.listFiles(new FilenameFilter() {
public boolean accept(File dir, String name) {
return name.endsWith(".jar") && (jarPrefix == null || name.startsWith(jarPrefix));
}
});
if (files != null && files.length > 0)
return files[0].toURI().toURL().toString();
}
return null;
}
public static Bundle loadTuscanyIntoOSGi(BundleContext bundleContext) throws Exception {
String tuscanyInstallerBundleName = new File(tuscanyInstallerDir + "/target/" + tuscanyInstallerJar).toURI().toURL().toString();
Bundle tuscanyInstallerBundle = bundleContext.installBundle(tuscanyInstallerBundleName);
tuscanyInstallerBundle.start();
Bundle[] bundles = bundleContext.getBundles();
Bundle tuscanyRuntimeBundle = tuscanyInstallerBundle;
for (Bundle bundle : bundles) {
if ("org.apache.tuscany.sca.osgi.runtime".equals(bundle.getSymbolicName())) {
tuscanyRuntimeBundle = bundle;
break;
}
}
setThreadContextClassLoader(tuscanyRuntimeBundle);
return tuscanyRuntimeBundle;
}
/**
* Load four Tuscany bundles (API, Core-SPI, Runtime, Extensions) and combined third party bundle
*
* @param bundleContext
*/
public static Bundle load5BundleTuscanyIntoOSGi(BundleContext bundleContext) throws Exception {
String thirdPartyBundleName = findBundle(thirdPartyDir, null);
Bundle thirdPartyBundle = bundleContext.installBundle(thirdPartyBundleName);
thirdPartyBundle.start();
String scaApiBundleName = findBundle(scaApiDir, null);
Bundle scaApiBundle = bundleContext.installBundle(scaApiBundleName);
scaApiBundle.start();
String tuscanySpiBundleName = findBundle(tuscanySpiDir, null);
Bundle tuscanySpiBundle = bundleContext.installBundle(tuscanySpiBundleName);
String tuscanyRuntimeBundleName = findBundle(tuscanyRuntimeDir, null);
Bundle tuscanyRuntimeBundle = bundleContext.installBundle(tuscanyRuntimeBundleName);
String tuscanyExtensionsBundleName = findBundle(tuscanyExtensionsDir, null);
Bundle tuscanyExtensionsBundle = bundleContext.installBundle(tuscanyExtensionsBundleName);
tuscanySpiBundle.start();
tuscanyExtensionsBundle.start();
setThreadContextClassLoader(tuscanyRuntimeBundle);
return tuscanyRuntimeBundle;
}
// Tuscany runtime is started on a different thread when previously cached bundle is used.
// Set this thread's TCCL to the one used by the runtime.
public static void setThreadContextClassLoader(Bundle tuscanyRuntimeBundle) throws BundleException {
if (tuscanyRuntimeBundle != null) {
try {
Class<?> runtimeClass = tuscanyRuntimeBundle.loadClass("org.apache.tuscany.sca.osgi.runtime.OSGiRuntime");
Method getRuntimeMethod = runtimeClass.getMethod("findRuntime");
Object runtime = getRuntimeMethod.invoke(runtimeClass);
Method getTCCLMethod = runtimeClass.getMethod("getContextClassLoader");
ClassLoader runtimeTCCL = (ClassLoader) getTCCLMethod.invoke(runtime);
Thread.currentThread().setContextClassLoader(runtimeTCCL);
} catch (Throwable e) {
}
}
}
}
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