package org.opendaylight.yangtools.yang.parser.impl;
import com.google.common.base.Optional;
+import com.google.common.base.Supplier;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.ImmutableSetMultimap;
+import com.google.common.collect.Multimaps;
+import com.google.common.collect.SetMultimap;
+
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.Date;
+import java.util.HashSet;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.TreeMap;
+import java.util.TreeSet;
+
+import javax.annotation.concurrent.Immutable;
+
import org.opendaylight.yangtools.yang.common.QName;
import org.opendaylight.yangtools.yang.model.api.AugmentationSchema;
import org.opendaylight.yangtools.yang.model.api.ConstraintDefinition;
import org.opendaylight.yangtools.yang.model.api.UsesNode;
import org.opendaylight.yangtools.yang.parser.util.ModuleDependencySort;
-import java.net.URI;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Date;
-import java.util.HashSet;
-import java.util.LinkedHashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.TreeMap;
-
+@Immutable
final class SchemaContextImpl implements SchemaContext {
- private final Set<Module> modules;
+ private static final Comparator<Module> REVISION_COMPARATOR = new Comparator<Module>() {
+ @Override
+ public int compare(final Module o1, final Module o2) {
+ if (o2.getRevision() == null) {
+ return -1;
+ }
+
+ return o2.getRevision().compareTo(o1.getRevision());
+ }
+ };
+
+ private static final Supplier<TreeSet<Module>> MODULE_SET_SUPPLIER = new Supplier<TreeSet<Module>>() {
+ @Override
+ public TreeSet<Module> get() {
+ return new TreeSet<>(REVISION_COMPARATOR);
+ }
+ };
+
private final Map<ModuleIdentifier, String> identifiersToSources;
+ private final SetMultimap<URI, Module> namespaceToModules;
+ private final SetMultimap<String, Module> nameToModules;
+ private final Set<Module> modules;
+
+ SchemaContextImpl(final Set<Module> modules, final Map<ModuleIdentifier, String> identifiersToSources) {
+ this.identifiersToSources = ImmutableMap.copyOf(identifiersToSources);
+
+ /*
+ * Instead of doing this on each invocation of getModules(), pre-compute
+ * it once and keep it around -- better than the set we got in.
+ */
+ this.modules = ImmutableSet.copyOf(ModuleDependencySort.sort(modules.toArray(new Module[modules.size()])));
+
+ /*
+ * The most common lookup is from Namespace->Module.
+ *
+ * RESTCONF performs lookups based on module name only, where it wants
+ * to receive the latest revision
+ *
+ * Invest some quality time in building up lookup tables for both.
+ */
+ final SetMultimap<URI, Module> nsMap = Multimaps.newSetMultimap(
+ new TreeMap<URI, Collection<Module>>(), MODULE_SET_SUPPLIER);
+ final SetMultimap<String, Module> nameMap = Multimaps.newSetMultimap(
+ new TreeMap<String, Collection<Module>>(), MODULE_SET_SUPPLIER);
+ for (Module m : modules) {
+ nameMap.put(m.getName(), m);
+ nsMap.put(m.getNamespace(), m);
+ }
- SchemaContextImpl(final Set<Module> modules, Map<ModuleIdentifier, String> identifiersToSources) {
- this.modules = modules;
- this.identifiersToSources = identifiersToSources;
+ namespaceToModules = ImmutableSetMultimap.copyOf(nsMap);
+ nameToModules = ImmutableSetMultimap.copyOf(nameMap);
}
@Override
public Set<DataSchemaNode> getDataDefinitions() {
- final Set<DataSchemaNode> dataDefs = new HashSet<DataSchemaNode>();
+ final Set<DataSchemaNode> dataDefs = new HashSet<>();
for (Module m : modules) {
dataDefs.addAll(m.getChildNodes());
}
@Override
public Set<Module> getModules() {
- List<Module> sorted = ModuleDependencySort.sort(modules.toArray(new Module[modules.size()]));
- return new LinkedHashSet<Module>(sorted);
+ return modules;
}
@Override
public Set<NotificationDefinition> getNotifications() {
- final Set<NotificationDefinition> notifications = new HashSet<NotificationDefinition>();
+ final Set<NotificationDefinition> notifications = new HashSet<>();
for (Module m : modules) {
notifications.addAll(m.getNotifications());
}
@Override
public Set<RpcDefinition> getOperations() {
- final Set<RpcDefinition> rpcs = new HashSet<RpcDefinition>();
+ final Set<RpcDefinition> rpcs = new HashSet<>();
for (Module m : modules) {
rpcs.addAll(m.getRpcs());
}
@Override
public Set<ExtensionDefinition> getExtensions() {
- final Set<ExtensionDefinition> extensions = new HashSet<ExtensionDefinition>();
+ final Set<ExtensionDefinition> extensions = new HashSet<>();
for (Module m : modules) {
extensions.addAll(m.getExtensionSchemaNodes());
}
@Override
public Module findModuleByName(final String name, final Date revision) {
- if (name != null) {
- for (final Module module : modules) {
- if (revision == null) {
- if (module.getName().equals(name)) {
- return module;
- }
- } else if (module.getName().equals(name) && module.getRevision().equals(revision)) {
- return module;
- }
+ for (final Module module : nameToModules.get(name)) {
+ if (revision == null || revision.equals(module.getRevision())) {
+ return module;
}
}
+
return null;
}
@Override
public Set<Module> findModuleByNamespace(final URI namespace) {
- final Set<Module> ret = new HashSet<Module>();
- if (namespace != null) {
- for (final Module module : modules) {
- if (module.getNamespace().equals(namespace)) {
- ret.add(module);
- }
- }
- }
- return ret;
+ final Set<Module> ret = namespaceToModules.get(namespace);
+ return ret == null ? Collections.<Module>emptySet() : ret;
}
@Override
- public Module findModuleByNamespaceAndRevision(URI namespace, Date revision) {
- if (namespace != null) {
- Set<Module> modules = findModuleByNamespace(namespace);
-
- if (revision == null) {
- TreeMap<Date, Module> map = new TreeMap<Date, Module>();
- for (Module module : modules) {
- map.put(module.getRevision(), module);
- }
- if (map.isEmpty()) {
- return null;
- }
- return map.lastEntry().getValue();
- } else {
- for (Module module : modules) {
- if (module.getRevision().equals(revision)) {
- return(module);
- }
- }
+ public Module findModuleByNamespaceAndRevision(final URI namespace, final Date revision) {
+ if (namespace == null) {
+ return null;
+ }
+ for (Module module : findModuleByNamespace(namespace)) {
+ if (revision == null || revision.equals(module.getRevision())) {
+ return module;
}
}
return null;
}
@Override
- public DataSchemaNode getDataChildByName(QName name) {
- DataSchemaNode result = null;
+ public DataSchemaNode getDataChildByName(final QName name) {
for (Module module : modules) {
- result = module.getDataChildByName(name);
+ final DataSchemaNode result = module.getDataChildByName(name);
if (result != null) {
- break;
+ return result;
}
}
- return result;
+ return null;
}
@Override
- public DataSchemaNode getDataChildByName(String name) {
- DataSchemaNode result = null;
+ public DataSchemaNode getDataChildByName(final String name) {
for (Module module : modules) {
- result = module.getDataChildByName(name);
+ final DataSchemaNode result = module.getDataChildByName(name);
if (result != null) {
- break;
+ return result;
}
}
- return result;
+ return null;
}
@Override
}
@Override
- public Optional<String> getModuleSource(ModuleIdentifier moduleIdentifier) {
+ public Optional<String> getModuleSource(final ModuleIdentifier moduleIdentifier) {
String maybeSource = identifiersToSources.get(moduleIdentifier);
return Optional.fromNullable(maybeSource);
}
+
+ @Override
+ public String toString() {
+ return "SchemaContextImpl{" +
+ "modules=" + modules +
+ '}';
+ }
}
Code Review / yangtools.git / blobdiff