clean test environment

[transportpce.git] / tests / honeynode / 2.2.1 / minimal-distribution / src / main / java / io / fd / honeycomb / infra / distro / Main.java

diff --git a/tests/honeynode/2.2.1/minimal-distribution/src/main/java/io/fd/honeycomb/infra/distro/Main.java b/tests/honeynode/2.2.1/minimal-distribution/src/main/java/io/fd/honeycomb/infra/distro/Main.java
new file mode 100644 (file)
index 0000000..5082604
--- /dev/null
+++ b/tests/honeynode/2.2.1/minimal-distribution/src/main/java/io/fd/honeycomb/infra/distro/Main.java
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.fd.honeycomb.infra.distro;
+
+import static com.google.inject.Guice.createInjector;
+
+import com.google.common.collect.ImmutableSet;
+import com.google.inject.ConfigurationException;
+import com.google.inject.CreationException;
+import com.google.inject.Injector;
+import com.google.inject.Key;
+import com.google.inject.Module;
+import com.google.inject.ProvisionException;
+import com.google.inject.name.Names;
+
+import io.fd.honeycomb.data.init.DataTreeInitializer;
+import io.fd.honeycomb.data.init.InitializerRegistry;
+import io.fd.honeycomb.infra.distro.activation.ActivationModule;
+import io.fd.honeycomb.infra.distro.activation.ActiveModules;
+import io.fd.honeycomb.infra.distro.initializer.InitializerPipelineModule;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public final class Main {
+
+    private static final Logger LOG = LoggerFactory.getLogger(Main.class);
+
+    private Main() {
+    }
+
+    public static void main(String[] args) {
+        init(new ActivationModule());
+    }
+
+    /**
+     * Initialize the Honeycomb with provided modules
+     */
+    public static Injector init(final ActivationModule activationModule) {
+        try {
+            LOG.info("Starting honeycomb");
+            // creating child injector does not work in this case, so just create injector, and does not store ref
+            // to it, or its active modules instance
+            Injector injector = createInjector(ImmutableSet.<Module>builder()
+                    .add(activationModule)
+                    .addAll(createInjector(activationModule).getInstance(ActiveModules.class).createModuleInstances())
+                    .build());
+
+            // Log all bindings
+            injector.getAllBindings().entrySet().stream()
+                    .forEach(e -> LOG.trace("Component available under: {} is {}", e.getKey(), e.getValue()));
+
+            try {
+                LOG.info("Initializing configuration");
+                injector.getInstance(Key.get(InitializerRegistry.class,
+                        Names.named(InitializerPipelineModule.HONEYCOMB_INITIALIZER))).initialize();
+                LOG.info("Configuration initialized successfully");
+            } catch (DataTreeInitializer.InitializeException e) {
+                LOG.error("Unable to initialize configuration", e);
+            }
+
+
+            LOG.info("Honeycomb started successfully!");
+            return injector;
+        } catch (CreationException | ProvisionException | ConfigurationException e) {
+            LOG.error("Failed to initialize Honeycomb components", e);
+            throw e;
+        } catch (RuntimeException e) {
+            LOG.error("Unexpected initialization failure", e);
+            throw e;
+        } finally {
+            // Trigger gc to force collect initial garbage + dedicated classloader
+            System.gc();
+        }
+    }
+
+}