Examples with InvalidPipelineException io.cdap.cdap.logging.framework.InvalidPipelineException used on opensource projects

Example 1 with InvalidPipelineException

use of io.cdap.cdap.logging.framework.InvalidPipelineException in project cdap by caskdata.

the class LogPipelineCheck method run.

@Override
public void run() throws Exception {
    // Because the logging framework supports usage of addition jars to host appender classes,
    // for validations, we need to construct a new classloader using all system jars plus the configured
    // additional log library jars.
    // A new classloader is needed because the logback doesn't support context classloader and requires the
    // LoggerContext class needs to be loaded from the same classloader as all appender classes.
    // We need to use reflection to load the LogPipelineLoader class and call validate on it
    // Collects all URLS used by the CDAP system classloader
    List<URL> urls = ClassLoaders.getClassLoaderURLs(getClass().getClassLoader(), new ArrayList<URL>());
    for (File libJar : LoggingUtil.getExtensionJars(cConf)) {
        urls.add(libJar.toURI().toURL());
    }
    // Serialize the cConf to a String. This is needed because the cConf field is
    // loaded from the CDAP system classloader and cannot be passed directly to the
    // LogPipelineLoader class that loaded from the new ClassLoader constructed above.
    StringWriter writer = new StringWriter();
    this.cConf.writeXml(writer);
    // Create a new classloader and run the following code using reflection
    // 
    // CConfiguration cConf = CConfiguration.create();
    // cConf.clear();
    // cConf.addResource(inputStream);
    // new LogPipelineLoader(cConf).validate();
    ClassLoader classLoader = new URLClassLoader(urls.toArray(new URL[urls.size()]), null);
    Class<?> cConfClass = classLoader.loadClass(CConfiguration.class.getName());
    Object cConf = cConfClass.getMethod("create").invoke(null);
    cConfClass.getMethod("clear").invoke(cConf);
    InputStream input = new ByteArrayInputStream(writer.toString().getBytes(StandardCharsets.UTF_8));
    cConfClass.getMethod("addResource", InputStream.class).invoke(cConf, input);
    Class<?> loaderClass = classLoader.loadClass(LogPipelineLoader.class.getName());
    Object loader = loaderClass.getConstructor(cConfClass).newInstance(cConf);
    try {
        loaderClass.getMethod("validate").invoke(loader);
    } catch (InvocationTargetException e) {
        // Translate the exception throw by the reflection call
        Throwable cause = e.getCause();
        // will be throw from the validate method.
        if (InvalidPipelineException.class.getName().equals(cause.getClass().getName())) {
            InvalidPipelineException ex = new InvalidPipelineException(cause.getMessage(), cause.getCause());
            ex.setStackTrace(cause.getStackTrace());
            throw ex;
        }
        Throwables.propagateIfPossible(cause, Exception.class);
        throw new RuntimeException(cause);
    }
    LOG.info("Log pipeline configurations verified.");
}

Example 2 with InvalidPipelineException

use of io.cdap.cdap.logging.framework.InvalidPipelineException in project cdap by cdapio.

the class LogPipelineCheck method run.

@Override
public void run() throws Exception {
    // Because the logging framework supports usage of addition jars to host appender classes,
    // for validations, we need to construct a new classloader using all system jars plus the configured
    // additional log library jars.
    // A new classloader is needed because the logback doesn't support context classloader and requires the
    // LoggerContext class needs to be loaded from the same classloader as all appender classes.
    // We need to use reflection to load the LogPipelineLoader class and call validate on it
    // Collects all URLS used by the CDAP system classloader
    List<URL> urls = ClassLoaders.getClassLoaderURLs(getClass().getClassLoader(), new ArrayList<URL>());
    for (File libJar : LoggingUtil.getExtensionJars(cConf)) {
        urls.add(libJar.toURI().toURL());
    }
    // Serialize the cConf to a String. This is needed because the cConf field is
    // loaded from the CDAP system classloader and cannot be passed directly to the
    // LogPipelineLoader class that loaded from the new ClassLoader constructed above.
    StringWriter writer = new StringWriter();
    this.cConf.writeXml(writer);
    // Create a new classloader and run the following code using reflection
    // 
    // CConfiguration cConf = CConfiguration.create();
    // cConf.clear();
    // cConf.addResource(inputStream);
    // new LogPipelineLoader(cConf).validate();
    ClassLoader classLoader = new URLClassLoader(urls.toArray(new URL[urls.size()]), null);
    Class<?> cConfClass = classLoader.loadClass(CConfiguration.class.getName());
    Object cConf = cConfClass.getMethod("create").invoke(null);
    cConfClass.getMethod("clear").invoke(cConf);
    InputStream input = new ByteArrayInputStream(writer.toString().getBytes(StandardCharsets.UTF_8));
    cConfClass.getMethod("addResource", InputStream.class).invoke(cConf, input);
    Class<?> loaderClass = classLoader.loadClass(LogPipelineLoader.class.getName());
    Object loader = loaderClass.getConstructor(cConfClass).newInstance(cConf);
    try {
        loaderClass.getMethod("validate").invoke(loader);
    } catch (InvocationTargetException e) {
        // Translate the exception throw by the reflection call
        Throwable cause = e.getCause();
        // will be throw from the validate method.
        if (InvalidPipelineException.class.getName().equals(cause.getClass().getName())) {
            InvalidPipelineException ex = new InvalidPipelineException(cause.getMessage(), cause.getCause());
            ex.setStackTrace(cause.getStackTrace());
            throw ex;
        }
        Throwables.propagateIfPossible(cause, Exception.class);
        throw new RuntimeException(cause);
    }
    LOG.info("Log pipeline configurations verified.");
}