*/
package org.opendaylight.yangtools.yang.parser.repo;
+import static com.google.common.base.Preconditions.checkArgument;
+import static java.util.Objects.requireNonNull;
+import static org.opendaylight.yangtools.util.concurrent.FluentFutures.immediateFluentFuture;
+
import com.google.common.base.Function;
-import com.google.common.base.Preconditions;
-import com.google.common.base.Predicate;
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
import com.google.common.collect.Collections2;
import com.google.common.collect.Iterables;
import com.google.common.collect.Maps;
import com.google.common.util.concurrent.AsyncFunction;
-import com.google.common.util.concurrent.CheckedFuture;
+import com.google.common.util.concurrent.FluentFuture;
import com.google.common.util.concurrent.FutureCallback;
import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
+import com.google.common.util.concurrent.MoreExecutors;
+import com.google.common.util.concurrent.SettableFuture;
import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
-import javax.annotation.Nullable;
+import java.util.concurrent.ExecutionException;
import org.antlr.v4.runtime.ParserRuleContext;
+import org.eclipse.jdt.annotation.NonNull;
import org.opendaylight.yangtools.antlrv4.code.gen.YangStatementParser.StatementContext;
-import org.opendaylight.yangtools.util.concurrent.ExceptionMapper;
-import org.opendaylight.yangtools.util.concurrent.ReflectiveExceptionMapper;
-import org.opendaylight.yangtools.yang.model.api.SchemaContext;
-import org.opendaylight.yangtools.yang.model.repo.api.SchemaContextFactory;
+import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
+import org.opendaylight.yangtools.yang.model.repo.api.EffectiveModelContextFactory;
+import org.opendaylight.yangtools.yang.model.repo.api.SchemaContextFactoryConfiguration;
+import org.opendaylight.yangtools.yang.model.repo.api.SchemaRepository;
import org.opendaylight.yangtools.yang.model.repo.api.SchemaResolutionException;
-import org.opendaylight.yangtools.yang.model.repo.api.SchemaSourceFilter;
import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
-import org.opendaylight.yangtools.yang.parser.impl.util.YangModelDependencyInfo;
+import org.opendaylight.yangtools.yang.model.repo.api.StatementParserMode;
+import org.opendaylight.yangtools.yang.parser.impl.DefaultReactors;
+import org.opendaylight.yangtools.yang.parser.rfc7950.repo.ASTSchemaSource;
+import org.opendaylight.yangtools.yang.parser.rfc7950.repo.YangModelDependencyInfo;
+import org.opendaylight.yangtools.yang.parser.rfc7950.repo.YangStatementStreamSource;
import org.opendaylight.yangtools.yang.parser.spi.meta.ReactorException;
-import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
-import org.opendaylight.yangtools.yang.parser.stmt.reactor.CrossSourceStatementReactor;
-import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.YangInferencePipeline;
-import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.YangStatementSourceImpl;
-import org.opendaylight.yangtools.yang.parser.util.ASTSchemaSource;
+import org.opendaylight.yangtools.yang.parser.stmt.reactor.CrossSourceStatementReactor.BuildAction;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
-final class SharedSchemaContextFactory implements SchemaContextFactory {
- private static final ExceptionMapper<SchemaResolutionException> MAPPER = ReflectiveExceptionMapper.create("resolve sources", SchemaResolutionException.class);
+final class SharedSchemaContextFactory implements EffectiveModelContextFactory {
private static final Logger LOG = LoggerFactory.getLogger(SharedSchemaContextFactory.class);
- private final Function<SourceIdentifier, ListenableFuture<ASTSchemaSource>> requestSources = new Function<SourceIdentifier, ListenableFuture<ASTSchemaSource>>() {
- @Override
- public ListenableFuture<ASTSchemaSource> apply(final SourceIdentifier input) {
- return repository.getSchemaSource(input, ASTSchemaSource.class);
- }
- };
- private final Cache<Collection<SourceIdentifier>, SchemaContext> cache = CacheBuilder.newBuilder().weakValues().build();
-
- private final AsyncFunction<List<ASTSchemaSource>, SchemaContext> assembleSources = new AsyncFunction<List<ASTSchemaSource>, SchemaContext>() {
- @Override
- public ListenableFuture<SchemaContext> apply(final List<ASTSchemaSource> sources) throws SchemaResolutionException, SourceException, ReactorException {
- final Map<SourceIdentifier, ASTSchemaSource> srcs =
- Maps.uniqueIndex(sources, ASTSchemaSource.GET_IDENTIFIER);
- final Map<SourceIdentifier, YangModelDependencyInfo> deps =
- Maps.transformValues(srcs, ASTSchemaSource.GET_DEPINFO);
-
- LOG.debug("Resolving dependency reactor {}", deps);
-
- final DependencyResolver res = DependencyResolver.create(deps);
- if (!res.getUnresolvedSources().isEmpty()) {
- LOG.debug("Omitting models {} due to unsatisfied imports {}", res.getUnresolvedSources(), res.getUnsatisfiedImports());
- throw new SchemaResolutionException("Failed to resolve required models",
- res.getResolvedSources(), res.getUnsatisfiedImports());
- }
-
- final Map<SourceIdentifier, ParserRuleContext> asts = Maps.transformValues(srcs, ASTSchemaSource.GET_AST);
- final CrossSourceStatementReactor.BuildAction reactor = YangInferencePipeline.RFC6020_REACTOR.newBuild();
-
- for (final Entry<SourceIdentifier, ParserRuleContext> e : asts.entrySet()) {
- final ParserRuleContext parserRuleCtx = e.getValue();
- Preconditions.checkArgument(parserRuleCtx instanceof StatementContext,
- "Unsupported context class %s for source %s", parserRuleCtx.getClass(), e.getKey());
-
- reactor.addSource(new YangStatementSourceImpl(e.getKey(), (StatementContext) parserRuleCtx));
- }
-
- SchemaContext schemaContext = reactor.buildEffective();
-
- return Futures.immediateCheckedFuture(schemaContext);
- }
- };
-
- private final SharedSchemaRepository repository;
- // FIXME: ignored right now
- private final SchemaSourceFilter filter;
-
- // FIXME SchemaRepository should be the type for repository parameter instead of SharedSchemaRepository (final implementation)
- public SharedSchemaContextFactory(final SharedSchemaRepository repository, final SchemaSourceFilter filter) {
- this.repository = Preconditions.checkNotNull(repository);
- this.filter = Preconditions.checkNotNull(filter);
+ private final Cache<Collection<SourceIdentifier>, EffectiveModelContext> revisionCache = CacheBuilder.newBuilder()
+ .weakValues().build();
+ private final Cache<Collection<SourceIdentifier>, EffectiveModelContext> semVerCache = CacheBuilder.newBuilder()
+ .weakValues().build();
+ private final @NonNull SchemaRepository repository;
+ private final @NonNull SchemaContextFactoryConfiguration config;
+
+ SharedSchemaContextFactory(final @NonNull SchemaRepository repository,
+ final @NonNull SchemaContextFactoryConfiguration config) {
+ this.repository = requireNonNull(repository);
+ this.config = requireNonNull(config);
}
@Override
- public CheckedFuture<SchemaContext, SchemaResolutionException> createSchemaContext(final Collection<SourceIdentifier> requiredSources) {
+ public @NonNull ListenableFuture<EffectiveModelContext> createEffectiveModelContext(
+ final @NonNull Collection<SourceIdentifier> requiredSources) {
+ return createSchemaContext(requiredSources,
+ config.getStatementParserMode() == StatementParserMode.SEMVER_MODE ? semVerCache : revisionCache,
+ new AssembleSources(config));
+ }
+
+ private @NonNull ListenableFuture<EffectiveModelContext> createSchemaContext(
+ final Collection<SourceIdentifier> requiredSources,
+ final Cache<Collection<SourceIdentifier>, EffectiveModelContext> cache,
+ final AsyncFunction<List<ASTSchemaSource>, EffectiveModelContext> assembleSources) {
// Make sources unique
final List<SourceIdentifier> uniqueSourceIdentifiers = deDuplicateSources(requiredSources);
- final SchemaContext existing = cache.getIfPresent(uniqueSourceIdentifiers);
+ final EffectiveModelContext existing = cache.getIfPresent(uniqueSourceIdentifiers);
if (existing != null) {
LOG.debug("Returning cached context {}", existing);
- return Futures.immediateCheckedFuture(existing);
+ return immediateFluentFuture(existing);
}
// Request all sources be loaded
- ListenableFuture<List<ASTSchemaSource>> sf = Futures.allAsList(Collections2.transform(uniqueSourceIdentifiers, requestSources));
+ ListenableFuture<List<ASTSchemaSource>> sf = Futures.allAsList(Collections2.transform(uniqueSourceIdentifiers,
+ this::requestSource));
// Detect mismatch between requested Source IDs and IDs that are extracted from parsed source
// Also remove duplicates if present
// We are relying on preserved order of uniqueSourceIdentifiers as well as sf
- sf = Futures.transform(sf, new SourceIdMismatchDetector(uniqueSourceIdentifiers));
+ sf = Futures.transform(sf, new SourceIdMismatchDetector(uniqueSourceIdentifiers),
+ MoreExecutors.directExecutor());
// Assemble sources into a schema context
- final ListenableFuture<SchemaContext> cf = Futures.transform(sf, assembleSources);
+ final ListenableFuture<EffectiveModelContext> cf = Futures.transformAsync(sf, assembleSources,
+ MoreExecutors.directExecutor());
- // Populate cache when successful
- Futures.addCallback(cf, new FutureCallback<SchemaContext>() {
+ final SettableFuture<EffectiveModelContext> rf = SettableFuture.create();
+ Futures.addCallback(cf, new FutureCallback<EffectiveModelContext>() {
@Override
- public void onSuccess(final SchemaContext result) {
- cache.put(uniqueSourceIdentifiers, result);
+ public void onSuccess(final EffectiveModelContext result) {
+ // Deduplicate concurrent loads
+ final EffectiveModelContext existing;
+ try {
+ existing = cache.get(uniqueSourceIdentifiers, () -> result);
+ } catch (ExecutionException e) {
+ LOG.warn("Failed to recheck result with cache, will use computed value", e);
+ rf.set(result);
+ return;
+ }
+
+ rf.set(existing);
}
@Override
- public void onFailure(final Throwable t) {
- LOG.debug("Failed to assemble sources", t);
+ public void onFailure(final Throwable cause) {
+ LOG.debug("Failed to assemble sources", cause);
+ rf.setException(cause);
}
- });
+ }, MoreExecutors.directExecutor());
- return Futures.makeChecked(cf, MAPPER);
+ return rf;
+ }
+
+ private ListenableFuture<ASTSchemaSource> requestSource(final @NonNull SourceIdentifier identifier) {
+ return repository.getSchemaSource(identifier, ASTSchemaSource.class);
}
/**
+ * Return a set of de-duplicated inputs.
+ *
* @return set (preserving ordering) from the input collection
*/
private static List<SourceIdentifier> deDuplicateSources(final Collection<SourceIdentifier> requiredSources) {
}
LOG.warn("Duplicate sources requested for schema context, removed duplicate sources: {}",
- Collections2.filter(uniqueSourceIdentifiers, new Predicate<SourceIdentifier>() {
- @Override
- public boolean apply(@Nullable final SourceIdentifier input) {
- return Iterables.frequency(requiredSources, input) > 1;
- }
- }));
+ Collections2.filter(uniqueSourceIdentifiers, input -> Iterables.frequency(requiredSources, input) > 1));
return ImmutableList.copyOf(uniqueSourceIdentifiers);
}
- private static final class SourceIdMismatchDetector implements Function<List<ASTSchemaSource>, List<ASTSchemaSource>> {
+ private static final class SourceIdMismatchDetector implements Function<List<ASTSchemaSource>,
+ List<ASTSchemaSource>> {
private final List<SourceIdentifier> sourceIdentifiers;
- public SourceIdMismatchDetector(final List<SourceIdentifier> sourceIdentifiers) {
- this.sourceIdentifiers = Preconditions.checkNotNull(sourceIdentifiers);
+ SourceIdMismatchDetector(final List<SourceIdentifier> sourceIdentifiers) {
+ this.sourceIdentifiers = requireNonNull(sourceIdentifiers);
}
@Override
final SourceIdentifier realSId = astSchemaSource.getIdentifier();
if (!expectedSId.equals(realSId)) {
- LOG.warn("Source identifier mismatch for module \"{}\", requested as {} but actually is {}. Using actual id",
- expectedSId.getName(), expectedSId, realSId);
+ LOG.warn("Source identifier mismatch for module \"{}\", requested as {} but actually is {}. "
+ + "Using actual id", expectedSId.getName(), expectedSId, realSId);
}
if (filtered.containsKey(realSId)) {
return ImmutableList.copyOf(filtered.values());
}
}
+
+ private static final class AssembleSources implements AsyncFunction<List<ASTSchemaSource>, EffectiveModelContext> {
+ private final @NonNull SchemaContextFactoryConfiguration config;
+ private final @NonNull Function<ASTSchemaSource, SourceIdentifier> getIdentifier;
+
+ private AssembleSources(final @NonNull SchemaContextFactoryConfiguration config) {
+ this.config = config;
+ switch (config.getStatementParserMode()) {
+ case SEMVER_MODE:
+ this.getIdentifier = ASTSchemaSource::getSemVerIdentifier;
+ break;
+ default:
+ this.getIdentifier = ASTSchemaSource::getIdentifier;
+ }
+ }
+
+ @Override
+ public FluentFuture<EffectiveModelContext> apply(final List<ASTSchemaSource> sources)
+ throws SchemaResolutionException, ReactorException {
+ final Map<SourceIdentifier, ASTSchemaSource> srcs = Maps.uniqueIndex(sources, getIdentifier);
+ final Map<SourceIdentifier, YangModelDependencyInfo> deps =
+ Maps.transformValues(srcs, ASTSchemaSource::getDependencyInformation);
+
+ LOG.debug("Resolving dependency reactor {}", deps);
+
+ final StatementParserMode statementParserMode = config.getStatementParserMode();
+ final DependencyResolver res = statementParserMode == StatementParserMode.SEMVER_MODE
+ ? SemVerDependencyResolver.create(deps) : RevisionDependencyResolver.create(deps);
+ if (!res.getUnresolvedSources().isEmpty()) {
+ LOG.debug("Omitting models {} due to unsatisfied imports {}", res.getUnresolvedSources(),
+ res.getUnsatisfiedImports());
+ throw new SchemaResolutionException("Failed to resolve required models",
+ res.getResolvedSources(), res.getUnsatisfiedImports());
+ }
+
+ final BuildAction reactor = DefaultReactors.defaultReactor().newBuild(statementParserMode);
+ config.getSupportedFeatures().ifPresent(reactor::setSupportedFeatures);
+ config.getModulesDeviatedByModules().ifPresent(reactor::setModulesWithSupportedDeviations);
+
+ for (final Entry<SourceIdentifier, ASTSchemaSource> e : srcs.entrySet()) {
+ final ASTSchemaSource ast = e.getValue();
+ final ParserRuleContext parserRuleCtx = ast.getAST();
+ checkArgument(parserRuleCtx instanceof StatementContext, "Unsupported context class %s for source %s",
+ parserRuleCtx.getClass(), e.getKey());
+
+ reactor.addSource(YangStatementStreamSource.create(e.getKey(), (StatementContext) parserRuleCtx,
+ ast.getSymbolicName().orElse(null)));
+ }
+
+ final EffectiveModelContext schemaContext;
+ try {
+ schemaContext = reactor.buildEffective();
+ } catch (final ReactorException ex) {
+ throw new SchemaResolutionException("Failed to resolve required models", ex.getSourceIdentifier(), ex);
+ }
+
+ return immediateFluentFuture(schemaContext);
+ }
+ }
}
Code Review / yangtools.git / blobdiff