Examples with CommonDataSource javax.sql.CommonDataSource used on opensource projects

Example 21 with CommonDataSource

use of javax.sql.CommonDataSource in project tomee by apache.

the class FlushableDataSourceHandler method updateDataSource.

public void updateDataSource(final CommonDataSource ds) {
    // order is important, check DataSourceFactory
    CommonDataSource current = ds;
    while (Proxy.isProxyClass(current.getClass())) {
        final InvocationHandler handler = Proxy.getInvocationHandler(current);
        if (FlushableDataSourceHandler.class.isInstance(handler) || ResettableDataSourceHandler.class.isInstance(handler)) {
            current = DelegatableHandler.class.cast(handler).getDelegate();
        } else {
            break;
        }
    }
    delegate.set(current);
}

Example 22 with CommonDataSource

use of javax.sql.CommonDataSource in project tomee by apache.

the class FlushableDataSourceHandler method createANewDelegate.

private void createANewDelegate() {
    final CommonDataSource old = delegate.get();
    try {
        final ObjectRecipe recipe = new ObjectRecipe(DataSourceFactory.class.getName(), "create", FACTORY_ARGS);
        recipe.allow(Option.CASE_INSENSITIVE_PROPERTIES);
        recipe.allow(Option.IGNORE_MISSING_PROPERTIES);
        recipe.allow(Option.NAMED_PARAMETERS);
        recipe.allow(Option.PRIVATE_PROPERTIES);
        recipe.setAllProperties(config.properties);
        recipe.setProperty("resettableHandler", resettableHandler);
        recipe.setProperty("flushableHandler", this);
        updateDataSource(CommonDataSource.class.cast(recipe.create()));
    } catch (final Exception e) {
        LOGGER.error("Can't recreate the datasource, keeping old one", e);
        return;
    }
    if (DataSourceFactory.knows(old)) {
        try {
            DataSourceFactory.destroy(old);
        } catch (final Throwable t) {
        // Ignore
        }
    }
}

Example 23 with CommonDataSource

use of javax.sql.CommonDataSource in project tomee by apache.

the class FlushableDataSourceHandler method invoke.

@Override
public Object invoke(final Object proxy, final Method method, final Object[] args) throws Throwable {
    final CommonDataSource actualDelegate = delegate.get();
    if (Object.class == method.getDeclaringClass()) {
        if ("hashCode".equals(method.getName())) {
            return hashCode();
        }
        if ("toString".equals(method.getName())) {
            return "Flushable[" + actualDelegate.toString() + "]";
        }
    }
    if (Flushable.class == method.getDeclaringClass()) {
        final Lock l = lock.writeLock();
        l.lock();
        try {
            createANewDelegate();
            if (Flushable.class.isInstance(actualDelegate)) {
                // these sanity could be enhanced
                if (!Proxy.isProxyClass(actualDelegate.getClass()) || // reset implies flush so we need to check both
                (!FlushableDataSourceHandler.class.isInstance(Proxy.getInvocationHandler(actualDelegate)) && !ResettableDataSourceHandler.class.isInstance(Proxy.getInvocationHandler(actualDelegate)))) {
                    Flushable.class.cast(actualDelegate).flush();
                }
            }
        } finally {
            l.unlock();
        }
        return null;
    }
    final Lock l = lock.readLock();
    l.lock();
    try {
        return method.invoke(getDelegate(), args);
    } catch (final InvocationTargetException ite) {
        throw ite.getCause();
    } finally {
        l.unlock();
    }
}