Examples with DAGExecutionPlugin org.apache.apex.engine.api.plugin.DAGExecutionPlugin used on opensource projects

Example 1 with DAGExecutionPlugin

use of org.apache.apex.engine.api.plugin.DAGExecutionPlugin in project apex-core by apache.

the class AbstractApexPluginDispatcher method serviceInit.

@Override
protected void serviceInit(Configuration conf) throws Exception {
    super.serviceInit(conf);
    this.launchConfig = readLaunchConfiguration();
    if (locator != null) {
        Collection<DAGExecutionPlugin> plugins = locator.discoverPlugins(this.launchConfig);
        if (plugins != null) {
            this.plugins.addAll(plugins);
            for (DAGExecutionPlugin plugin : plugins) {
                LOG.info("Detected plugin {}", plugin);
            }
        }
    }
    for (DAGExecutionPlugin plugin : plugins) {
        plugin.setup(new PluginManagerImpl(plugin));
    }
}

Example 2 with DAGExecutionPlugin

use of org.apache.apex.engine.api.plugin.DAGExecutionPlugin in project apex-core by apache.

the class StreamingAppMasterService method initApexPluginDispatcher.

private void initApexPluginDispatcher() {
    PluginLocator<DAGExecutionPlugin> locator = new ChainedPluginLocator<>(new ServiceLoaderBasedPluginLocator<>(DAGExecutionPlugin.class), new PropertyBasedPluginLocator<>(DAGExecutionPlugin.class, PLUGINS_CONF_KEY));
    apexPluginDispatcher = new DefaultApexPluginDispatcher(locator, appContext, dnmgr, stats);
    dnmgr.apexPluginDispatcher = apexPluginDispatcher;
    addService(apexPluginDispatcher);
    apexPluginDispatcher.dispatch(new ApexPluginDispatcher.DAGChangeEvent(dnmgr.getLogicalPlan()));
}

Example 3 with DAGExecutionPlugin

use of org.apache.apex.engine.api.plugin.DAGExecutionPlugin in project apex-core by apache.

the class PluginTests method testStaticPluginLoader.

@Test
public void testStaticPluginLoader() {
    DAGExecutionPlugin plugin1 = new NoOpPlugin();
    DAGExecutionPlugin plugin2 = new DebugPlugin();
    StaticPluginLocator<DAGExecutionPlugin> locator1 = new StaticPluginLocator<>(plugin1);
    StaticPluginLocator<DAGExecutionPlugin> locator2 = new StaticPluginLocator<>(plugin2);
    Collection<DAGExecutionPlugin> discovered1 = locator1.discoverPlugins(conf);
    Assert.assertEquals("Number of plugins discovered ", 1, discovered1.size());
    Assert.assertEquals("Type is NoOpPlugin", discovered1.iterator().next().getClass(), NoOpPlugin.class);
    Assert.assertEquals("Type is NoOpPlugin", discovered1.iterator().next(), plugin1);
    Collection<DAGExecutionPlugin> discovered2 = locator2.discoverPlugins(conf);
    Assert.assertEquals("Number of plugins discovered ", 1, discovered2.size());
    Assert.assertEquals("Type is NoOpPlugin", discovered2.iterator().next().getClass(), DebugPlugin.class);
    Assert.assertEquals("Type is NoOpPlugin", discovered2.iterator().next(), plugin2);
    ChainedPluginLocator<DAGExecutionPlugin> chained = new ChainedPluginLocator<>(locator1, locator2);
    Collection<DAGExecutionPlugin> chainedDiscovered = chained.discoverPlugins(conf);
    Assert.assertEquals("Number of plugins discovered ", 2, chainedDiscovered.size());
    Assert.assertTrue(chainedDiscovered.contains(plugin1));
    Assert.assertTrue(chainedDiscovered.contains(plugin2));
}