From 0578156b721fa01c8c645b8f9625ecebdb6449e4 Mon Sep 17 00:00:00 2001 From: Maros Marsalek Date: Wed, 27 Jul 2016 11:05:51 +0200 Subject: HONEYCOMB-130: Separate v3po plugin from HC infra Creating folders: - common/ - infra/ - v3po/ - vpp-common/ Change-Id: I2c39e1b17e39e7c0f0628f44aa5fe08563fa06e4 Signed-off-by: Maros Marsalek --- .../v3po/data/impl/PersistingDataTreeAdapter.java | 151 --------------------- 1 file changed, 151 deletions(-) delete mode 100644 v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/PersistingDataTreeAdapter.java (limited to 'v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/PersistingDataTreeAdapter.java') diff --git a/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/PersistingDataTreeAdapter.java b/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/PersistingDataTreeAdapter.java deleted file mode 100644 index 9b71dfd62..000000000 --- a/v3po/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/PersistingDataTreeAdapter.java +++ /dev/null @@ -1,151 +0,0 @@ -/* - * 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.v3po.data.impl; - -import static com.google.common.base.Preconditions.checkArgument; -import static com.google.common.base.Preconditions.checkNotNull; - -import com.google.common.base.Optional; -import io.fd.honeycomb.v3po.translate.util.JsonUtils; -import java.io.IOException; -import java.nio.file.Files; -import java.nio.file.Path; -import java.nio.file.StandardOpenOption; -import javax.annotation.Nonnull; -import org.opendaylight.controller.sal.core.api.model.SchemaService; -import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier; -import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode; -import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree; -import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate; -import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification; -import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeSnapshot; -import org.opendaylight.yangtools.yang.data.api.schema.tree.DataValidationFailedException; -import org.opendaylight.yangtools.yang.model.api.SchemaContext; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; - -/** - * Adapter for a DataTree that stores current state of data in backing DataTree on each successful commit. - * Uses JSON format. - */ -public class PersistingDataTreeAdapter implements DataTree, AutoCloseable { - - private static final Logger LOG = LoggerFactory.getLogger(PersistingDataTreeAdapter.class); - - private final DataTree delegateDependency; - private final SchemaService schemaServiceDependency; - private final Path path; - - /** - * Create new Persisting DataTree adapter - * - * @param delegate backing data tree that actually handles all the operations - * @param persistPath path to a file (existing or not) to be used as storage for persistence. Full control over - * a file at peristPath is expected - * @param schemaService schemaContext provier - */ - public PersistingDataTreeAdapter(@Nonnull final DataTree delegate, - @Nonnull final SchemaService schemaService, - @Nonnull final Path persistPath) { - this.path = testPersistPath(checkNotNull(persistPath, "persistPath is null")); - this.delegateDependency = checkNotNull(delegate, "delegate is null"); - this.schemaServiceDependency = checkNotNull(schemaService, "schemaService is null"); - } - - /** - * Test whether file at persistPath exists and is readable or create it along with its parent structure - */ - private Path testPersistPath(final Path persistPath) { - try { - checkArgument(!Files.isDirectory(persistPath), "Path %s points to a directory", persistPath); - if(Files.exists(persistPath)) { - checkArgument(Files.isReadable(persistPath), - "Provided path %s points to existing, but non-readable file", persistPath); - return persistPath; - } - Files.createDirectories(persistPath.getParent()); - Files.write(persistPath, new byte[]{}, StandardOpenOption.CREATE); - } catch (IOException | UnsupportedOperationException e) { - LOG.warn("Provided path for persistence: {} is not usable", persistPath, e); - throw new IllegalArgumentException("Path " + persistPath + " cannot be used as "); - } - - return persistPath; - } - - @Override - public DataTreeSnapshot takeSnapshot() { - return delegateDependency.takeSnapshot(); - } - - @Override - public void setSchemaContext(final SchemaContext schemaContext) { - delegateDependency.setSchemaContext(schemaContext); - } - - @Override - public void commit(final DataTreeCandidate dataTreeCandidate) { - LOG.trace("Commit detected"); - delegateDependency.commit(dataTreeCandidate); - LOG.debug("Delegate commit successful. Persisting data"); - - // FIXME doing full read and full write might not be the fastest way of persisting data here - final DataTreeSnapshot dataTreeSnapshot = delegateDependency.takeSnapshot(); - - // TODO this can be handled in background by a dedicated thread + a limited blocking queue - // TODO enable configurable granularity for persists. Maybe doing write on every modification is too much - // and we could do bulk persist - persistCurrentData(dataTreeSnapshot.readNode(YangInstanceIdentifier.EMPTY)); - } - - private void persistCurrentData(final Optional> currentRoot) { - if(currentRoot.isPresent()) { - try { - LOG.trace("Persisting current data: {} into: {}", currentRoot.get(), path); - JsonUtils.writeJsonRoot(currentRoot.get(), schemaServiceDependency.getGlobalContext(), - Files.newOutputStream(path, StandardOpenOption.CREATE, StandardOpenOption.TRUNCATE_EXISTING)); - LOG.trace("Data persisted successfully in {}", path); - } catch (IOException e) { - throw new IllegalStateException("Unable to persist current data", e); - } - } else { - LOG.debug("Skipping persistence, since there's no data to persist"); - } - } - - @Override - public YangInstanceIdentifier getRootPath() { - return delegateDependency.getRootPath(); - } - - @Override - public void validate(final DataTreeModification dataTreeModification) throws DataValidationFailedException { - delegateDependency.validate(dataTreeModification); - } - - @Override - public DataTreeCandidate prepare( - final DataTreeModification dataTreeModification) { - return delegateDependency.prepare(dataTreeModification); - } - - @Override - public void close() throws Exception { - LOG.trace("Closing {} for {}", getClass().getSimpleName(), path); - // NOOP - } -} -- cgit 1.2.3-korg