HONEYCOMB-373 - Separate minimal distribution modules to core module

Change-Id: I5278f91ea06f57c84b44a8458ef44469ebd0cf84
Signed-off-by: Jan Srnicek <jsrnicek@cisco.com>

5 files changed, 331 insertions, 0 deletions

diff --git a/infra/minimal-distribution-core/src/main/java/io/fd/honeycomb/infra/distro/initializer/InitializerPipelineModule.java b/infra/minimal-distribution-core/src/main/java/io/fd/honeycomb/infra/distro/initializer/InitializerPipelineModule.java
new file mode 100644
index 000000000..e0c38f38b
--- /dev/null
+++ b/infra/minimal-distribution-core/src/main/java/io/fd/honeycomb/infra/distro/initializer/InitializerPipelineModule.java
@@ -0,0 +1,48 @@
+/*
+ * 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.initializer;
+
+import com.google.inject.PrivateModule;
+import com.google.inject.Singleton;
+import com.google.inject.name.Names;
+import io.fd.honeycomb.data.ModifiableDataManager;
+import io.fd.honeycomb.data.init.InitializerRegistry;
+import io.fd.honeycomb.infra.distro.data.BindingDataBrokerProvider;
+import io.fd.honeycomb.infra.distro.data.HoneycombDOMDataBrokerProvider;
+import org.opendaylight.controller.md.sal.binding.api.DataBroker;
+import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
+
+public final class InitializerPipelineModule extends PrivateModule {
+
+    public static final String HONEYCOMB_INITIALIZER = "honeycomb-initializer";
+
+    protected void configure() {
+        // Create data tree manager on top of non-persisting config data tree
+        bind(ModifiableDataManager.class).toProvider(ModifiableDTDelegInitProvider.class).in(Singleton.class);
+        // Wrap as DOMDataBroker
+        bind(DOMDataBroker.class).toProvider(HoneycombDOMDataBrokerProvider.class).in(Singleton.class);
+        // Wrap as BA data broker
+        bind(DataBroker.class).annotatedWith(Names.named(HONEYCOMB_INITIALIZER))
+                .toProvider(BindingDataBrokerProvider.class).in(Singleton.class);
+        expose(DataBroker.class).annotatedWith(Names.named(HONEYCOMB_INITIALIZER));
+
+        // Create initializer registry so that plugins can provide their initializers
+        bind(InitializerRegistry.class).annotatedWith(Names.named(HONEYCOMB_INITIALIZER))
+                .toProvider(InitializerRegistryAdapterProvider.class).in(Singleton.class);
+        expose(InitializerRegistry.class).annotatedWith(Names.named(HONEYCOMB_INITIALIZER));
+    }
+}
diff --git a/infra/minimal-distribution-core/src/main/java/io/fd/honeycomb/infra/distro/initializer/InitializerRegistryAdapter.java b/infra/minimal-distribution-core/src/main/java/io/fd/honeycomb/infra/distro/initializer/InitializerRegistryAdapter.java
new file mode 100644
index 000000000..85fb7772c
--- /dev/null
+++ b/infra/minimal-distribution-core/src/main/java/io/fd/honeycomb/infra/distro/initializer/InitializerRegistryAdapter.java
@@ -0,0 +1,101 @@
+/*
+ * 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.initializer;
+
+import io.fd.honeycomb.data.init.DataTreeInitializer;
+import io.fd.honeycomb.data.init.InitializerRegistry;
+import io.fd.honeycomb.translate.MappingContext;
+import io.fd.honeycomb.translate.ModificationCache;
+import io.fd.honeycomb.translate.read.ReadContext;
+import io.fd.honeycomb.translate.read.registry.InitRegistry;
+import javax.annotation.Nonnull;
+import org.opendaylight.controller.md.sal.binding.api.DataBroker;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+final class InitializerRegistryAdapter implements InitializerRegistry {
+
+    private static final Logger LOG = LoggerFactory.getLogger(InitializerRegistryAdapter.class);
+
+    private final DataTreeInitializer configInitializer;
+    private final DataTreeInitializer contextInitializer;
+    private final InitRegistry initRegistry;
+    private final DataBroker dataBroker;
+    private final MappingContext realtimeMappingContext;
+
+    InitializerRegistryAdapter(final DataTreeInitializer configInitializer,
+                               final DataTreeInitializer contextInitializer,
+                               final InitRegistry initRegistry,
+                               final DataBroker noopConfigDataBroker,
+                               final MappingContext realtimeMappingContext) {
+        this.configInitializer = configInitializer;
+        this.contextInitializer = contextInitializer;
+        this.initRegistry = initRegistry;
+        this.dataBroker = noopConfigDataBroker;
+        this.realtimeMappingContext = realtimeMappingContext;
+    }
+
+    @Override
+    public void initialize() throws DataTreeInitializer.InitializeException {
+        LOG.info("Config initialization started");
+
+        try {
+            // Initialize contexts first so that other initializers can find any relevant mapping before initializing
+            // configuration to what is already in VPP
+            contextInitializer.initialize();
+            LOG.info("Persisted context restored successfully");
+            // Initialize all registered initializers
+            initRegistry.initAll(dataBroker, new InitReadContext(realtimeMappingContext));
+            LOG.info("Configuration initialized successfully");
+            // Initialize stored configuration on top
+            configInitializer.initialize();
+            LOG.info("Persisted configuration restored successfully");
+        } catch (Exception e) {
+            LOG.warn("Failed to initialize config", e);
+        }
+
+        LOG.info("Honeycomb initialized");
+    }
+
+    private static final class InitReadContext implements ReadContext {
+
+        private final ModificationCache modificationCache;
+        private final MappingContext realtimeMappingContext;
+
+        InitReadContext(final MappingContext realtimeMappingContext) {
+            modificationCache = new ModificationCache();
+            this.realtimeMappingContext = realtimeMappingContext;
+        }
+
+        @Nonnull
+        @Override
+        public ModificationCache getModificationCache() {
+            return modificationCache;
+        }
+
+        @Nonnull
+        @Override
+        public MappingContext getMappingContext() {
+            return realtimeMappingContext;
+        }
+
+        @Override
+        public void close() {
+            modificationCache.close();
+        }
+    }
+}
diff --git a/infra/minimal-distribution-core/src/main/java/io/fd/honeycomb/infra/distro/initializer/InitializerRegistryAdapterProvider.java b/infra/minimal-distribution-core/src/main/java/io/fd/honeycomb/infra/distro/initializer/InitializerRegistryAdapterProvider.java
new file mode 100644
index 000000000..4f5185c40
--- /dev/null
+++ b/infra/minimal-distribution-core/src/main/java/io/fd/honeycomb/infra/distro/initializer/InitializerRegistryAdapterProvider.java
@@ -0,0 +1,54 @@
+/*
+ * 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.initializer;
+
+import static io.fd.honeycomb.infra.distro.data.ConfigAndOperationalPipelineModule.HONEYCOMB_CONFIG;
+import static io.fd.honeycomb.infra.distro.data.context.ContextPipelineModule.HONEYCOMB_CONTEXT;
+import static io.fd.honeycomb.infra.distro.initializer.InitializerPipelineModule.HONEYCOMB_INITIALIZER;
+
+import com.google.inject.Inject;
+import com.google.inject.name.Named;
+import io.fd.honeycomb.data.init.DataTreeInitializer;
+import io.fd.honeycomb.data.init.InitializerRegistry;
+import io.fd.honeycomb.infra.distro.ProviderTrait;
+import io.fd.honeycomb.translate.MappingContext;
+import io.fd.honeycomb.translate.read.registry.ReaderRegistry;
+import org.opendaylight.controller.md.sal.binding.api.DataBroker;
+
+public final class InitializerRegistryAdapterProvider extends ProviderTrait<InitializerRegistry> {
+
+    @Inject
+    @Named(HONEYCOMB_CONTEXT)
+    private DataTreeInitializer contextInitializer;
+    @Inject
+    @Named(HONEYCOMB_CONFIG)
+    private DataTreeInitializer configInitializer;
+    @Inject
+    private ReaderRegistry initRegistry;
+    @Inject
+    @Named(HONEYCOMB_INITIALIZER)
+    private DataBroker noopConfigDataBroker;
+    @Inject
+    @Named(HONEYCOMB_CONTEXT)
+    private MappingContext realtimeMappingContext;
+
+    @Override
+    protected InitializerRegistryAdapter create() {
+        return new InitializerRegistryAdapter(configInitializer, contextInitializer, initRegistry,
+                noopConfigDataBroker, realtimeMappingContext);
+    }
+}
diff --git a/infra/minimal-distribution-core/src/main/java/io/fd/honeycomb/infra/distro/initializer/ModifiableDTDelegInitProvider.java b/infra/minimal-distribution-core/src/main/java/io/fd/honeycomb/infra/distro/initializer/ModifiableDTDelegInitProvider.java
new file mode 100644
index 000000000..3579ff11d
--- /dev/null
+++ b/infra/minimal-distribution-core/src/main/java/io/fd/honeycomb/infra/distro/initializer/ModifiableDTDelegInitProvider.java
@@ -0,0 +1,50 @@
+/*
+ * 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.initializer;
+
+import com.google.inject.Inject;
+import com.google.inject.name.Named;
+import io.fd.honeycomb.data.ModifiableDataManager;
+import io.fd.honeycomb.data.impl.ModifiableDataTreeDelegator;
+import io.fd.honeycomb.infra.distro.ProviderTrait;
+import io.fd.honeycomb.infra.distro.data.ConfigAndOperationalPipelineModule;
+import io.fd.honeycomb.infra.distro.data.context.ContextPipelineModule;
+import io.fd.honeycomb.translate.util.write.NoopWriterRegistry;
+import org.opendaylight.controller.md.sal.binding.api.DataBroker;
+import org.opendaylight.controller.md.sal.binding.impl.BindingToNormalizedNodeCodec;
+import org.opendaylight.controller.sal.core.api.model.SchemaService;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
+
+public final class ModifiableDTDelegInitProvider extends ProviderTrait<ModifiableDataManager> {
+
+    @Inject
+    private BindingToNormalizedNodeCodec serializer;
+    @Inject
+    @Named(ConfigAndOperationalPipelineModule.HONEYCOMB_CONFIG_NONPERSIST)
+    private DataTree dataTree;
+    @Inject
+    @Named(ContextPipelineModule.HONEYCOMB_CONTEXT)
+    private DataBroker contextBroker;
+    @Inject
+    private SchemaService schemaService;
+
+    @Override
+    public ModifiableDataTreeDelegator create() {
+        return new ModifiableDataTreeDelegator(serializer, dataTree, schemaService.getGlobalContext(),
+                new NoopWriterRegistry(), contextBroker);
+    }
+}
diff --git a/infra/minimal-distribution-core/src/main/java/io/fd/honeycomb/infra/distro/initializer/PersistedFileInitializerProvider.java b/infra/minimal-distribution-core/src/main/java/io/fd/honeycomb/infra/distro/initializer/PersistedFileInitializerProvider.java
new file mode 100644
index 000000000..58d63cfb3
--- /dev/null
+++ b/infra/minimal-distribution-core/src/main/java/io/fd/honeycomb/infra/distro/initializer/PersistedFileInitializerProvider.java
@@ -0,0 +1,78 @@
+/*
+ * 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.initializer;
+
+import com.google.inject.Inject;
+import io.fd.honeycomb.data.init.RestoringInitializer;
+import io.fd.honeycomb.infra.distro.ProviderTrait;
+import io.fd.honeycomb.infra.distro.cfgattrs.HoneycombConfiguration;
+import java.nio.file.Paths;
+import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
+import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
+import org.opendaylight.controller.sal.core.api.model.SchemaService;
+
+public abstract class PersistedFileInitializerProvider extends ProviderTrait<RestoringInitializer> {
+
+    @Inject
+    private SchemaService schemaService;
+    @Inject
+    protected HoneycombConfiguration cfgAttributes;
+    @Inject
+    private DOMDataBroker domDataBroker;
+
+    @Override
+    public RestoringInitializer create() {
+        return new RestoringInitializer(schemaService, Paths.get(getPersistPath()), domDataBroker,
+                RestoringInitializer.RestorationType.valueOf(getRestorationType()), getDataStoreType());
+    }
+
+    public abstract String getPersistPath();
+
+    public abstract LogicalDatastoreType getDataStoreType();
+
+    public abstract String getRestorationType();
+
+    public static class PersistedContextInitializerProvider extends PersistedFileInitializerProvider {
+        public String getPersistPath() {
+            return cfgAttributes.peristContextPath;
+        }
+
+        public LogicalDatastoreType getDataStoreType() {
+            return LogicalDatastoreType.OPERATIONAL;
+        }
+
+        public String getRestorationType() {
+            return cfgAttributes.persistedContextRestorationType;
+        }
+
+    }
+
+    public static class PersistedConfigInitializerProvider extends PersistedFileInitializerProvider {
+        public String getPersistPath() {
+            return cfgAttributes.peristConfigPath;
+        }
+
+        public LogicalDatastoreType getDataStoreType() {
+            return LogicalDatastoreType.CONFIGURATION;
+        }
+
+        public String getRestorationType() {
+            return cfgAttributes.persistedConfigRestorationType;
+        }
+
+    }
+}