Examples with GeneratorParams org.hotswap.agent.plugin.proxy.hscglib.GeneratorParams used on opensource projects

Example 1 with GeneratorParams

use of org.hotswap.agent.plugin.proxy.hscglib.GeneratorParams in project HotswapAgent by HotswapProjects.

the class ProxyPlugin method transformCglibProxy.

// @OnClassLoadEvent(classNameRegexp = "com/sun/proxy/\\$Proxy.*", events = LoadEvent.REDEFINE, skipSynthetic = false)
// public static byte[] transformJavaProxy(final Class<?> classBeingRedefined, final byte[] classfileBuffer,
// final ClassPool cp, final CtClass cc) throws IllegalClassFormatException, IOException, RuntimeException {
// try {
// return JavassistProxyTransformer.transform(classBeingRedefined, classfileBuffer, cc, cp);
// } catch (Exception e) {
// LOGGER.error("Error redifining Cglib proxy {}", e, classBeingRedefined.getName());
// }
// return classfileBuffer;
// }
// alternative method of redefining Java proxies, uses a new classlaoder instance
// @OnClassLoadEvent(classNameRegexp = "com/sun/proxy/\\$Proxy.*", events = LoadEvent.REDEFINE, skipSynthetic =
// false)
// public static byte[] transformJavaProxy(final Class<?> classBeingRedefined, final byte[] classfileBuffer,
// final ClassLoader loader) throws IllegalClassFormatException, IOException, RuntimeException {
// try {
// return NewClassLoaderJavaProxyTransformer.transform(classBeingRedefined, classfileBuffer, loader);
// } catch (Exception e) {
// LOGGER.error("Error redifining Cglib proxy {}", e, classBeingRedefined.getName());
// }
// return classfileBuffer;
// }
// 
// // alternative method of redefining Java proxies, uses a 2 step process. Crashed with jvm8
// @OnClassLoadEvent(classNameRegexp = "com/sun/proxy/\\$Proxy.*", events = LoadEvent.REDEFINE, skipSynthetic =
// false)
// public static byte[] transformJavaProxy(final Class<?> classBeingRedefined, final byte[] classfileBuffer,
// final ClassPool cp) {
// try {
// return JavaProxyTransformer.transform(classBeingRedefined, cp, classfileBuffer);
// } catch (Exception e) {
// LOGGER.error("Error redifining Cglib proxy {}", e, classBeingRedefined.getName());
// }
// return classfileBuffer;
// }
@OnClassLoadEvent(classNameRegexp = ".*", events = LoadEvent.REDEFINE, skipSynthetic = false)
public static byte[] transformCglibProxy(final Class<?> classBeingRedefined, final byte[] classfileBuffer, final ClassLoader loader, final ClassPool cp) throws Exception {
    GeneratorParams generatorParams = GeneratorParametersTransformer.getGeneratorParams(loader, classBeingRedefined.getName());
    if (!ClassLoaderHelper.isClassLoderStarted(loader)) {
        return classfileBuffer;
    }
    if (generatorParams == null) {
        return classfileBuffer;
    }
    // flush standard java beans caches
    loader.loadClass("java.beans.Introspector").getMethod("flushCaches").invoke(null);
    if (generatorParams.getParam().getClass().getName().endsWith(".Enhancer")) {
        try {
            return CglibEnhancerProxyTransformer.transform(classBeingRedefined, cp, classfileBuffer, loader, generatorParams);
        } catch (Exception e) {
            LOGGER.error("Error redifining Cglib Enhancer proxy {}", e, classBeingRedefined.getName());
        }
    }
    // Multistep transformation crashed jvm in java8 u05
    if (!isJava8OrNewer)
        try {
            return CglibProxyTransformer.transform(classBeingRedefined, cp, classfileBuffer, generatorParams);
        } catch (Exception e) {
            LOGGER.error("Error redifining Cglib proxy {}", e, classBeingRedefined.getName());
        }
    return classfileBuffer;
}