Cleanup checkstyle in yang-{data,model}-api

[yangtools.git] / yang / yang-model-api / src / main / java / org / opendaylight / yangtools / yang / model / api / SchemaContext.java

diff --git a/yang/yang-model-api/src/main/java/org/opendaylight/yangtools/yang/model/api/SchemaContext.java b/yang/yang-model-api/src/main/java/org/opendaylight/yangtools/yang/model/api/SchemaContext.java
index d800d15a26a664c06cbc12973f949a7b54206dd2..ead8fc7beedf2a2fa113456e21c4d31a4ea9e2be 100644 (file)
--- a/yang/yang-model-api/src/main/java/org/opendaylight/yangtools/yang/model/api/SchemaContext.java
+++ b/yang/yang-model-api/src/main/java/org/opendaylight/yangtools/yang/model/api/SchemaContext.java
@@ -7,25 +7,33 @@
  */
 package org.opendaylight.yangtools.yang.model.api;
 
+import com.google.common.base.Optional;
+import com.google.common.collect.Sets;
 import java.net.URI;
 import java.util.Date;
 import java.util.Set;
-
+import javax.annotation.concurrent.Immutable;
 import org.opendaylight.yangtools.yang.common.QName;
 
 /**
- * The interface contains the methods for manipulating all the top level context
- * data (data from all red modules) like YANG notifications, extensions,
+ * The interface represents static view of compiled yang files,
+ * contains the methods for obtaining all the top level context
+ * data (data from all modules) like YANG notifications, extensions,
  * operations...
+ * Instances MUST be immutable and thus usage in multi threaded
+ * environment is safe.
  */
+@Immutable
 public interface SchemaContext extends ContainerSchemaNode {
-
-    public static final QName NAME = QName.create(URI.create("urn:ietf:params:xml:ns:netconf:base:1.0"), null, "data");
+    /**
+     * QName of NETCONF top-level data node.
+     */
+    QName NAME = QName.create(URI.create("urn:ietf:params:xml:ns:netconf:base:1.0"), null, "data").intern();
 
     /**
      * Returns data schema node instances which represents direct subnodes (like
      * leaf, leaf-list, list, container) in all YANG modules in the context.
-     * 
+     *
      * @return set of <code>DataSchemaNode</code> instances which represents
      *         YANG data nodes at the module top level
      */
@@ -33,26 +41,15 @@ public interface SchemaContext extends ContainerSchemaNode {
 
     /**
      * Returns modules which are part of the schema context.
-     * 
+     *
      * @return set of the modules which belong to the schema context
      */
     Set<Module> getModules();
 
-    /**
-     * 
-     * Returns notification definition instances which are defined as the direct
-     * subelements in all YANG modules in the context.
-     * 
-     * @return set of <code>NotificationDefinition</code> instances which
-     *         represents nodes defined via <code>notification</code> YANG
-     *         keyword
-     */
-    Set<NotificationDefinition> getNotifications();
-
     /**
      * Returns rpc definition instances which are defined as the direct
      * subelements in all YANG modules in the context.
-     * 
+     *
      * @return set of <code>RpcDefinition</code> instances which represents
      *         nodes defined via <code>rpc</code> YANG keyword
      */
@@ -60,8 +57,8 @@ public interface SchemaContext extends ContainerSchemaNode {
 
     /**
      * Returns extencion definition instances which are defined as the direct
-     * subelements in all YANG modules in the context
-     * 
+     * subelements in all YANG modules in the context.
+     *
      * @return set of <code>ExtensionDefinition</code> instances which
      *         represents nodes defined via <code>extension</code> YANG keyword
      */
@@ -70,7 +67,7 @@ public interface SchemaContext extends ContainerSchemaNode {
     /**
      * Returns module instance (from the context) with concrete name and
      * revision date.
-     * 
+     *
      * @param name
      *            string with the module name
      * @param revision
@@ -79,20 +76,55 @@ public interface SchemaContext extends ContainerSchemaNode {
      *         same as are the values specified in parameters <code>name</code>
      *         and <code>revision</code>. In other cases the <code>null</code>
      *         value is returned.
-     * 
+     *
      */
     Module findModuleByName(final String name, final Date revision);
 
     /**
-     * 
      * Returns module instance (from the context) with concrete namespace.
-     * 
+     *
      * @param namespace
      *            URI instance with specified namespace
      * @return module instance which has namespace equal to the
      *         <code>namespace</code> or <code>null</code> in other cases
      */
-    Set<Module> findModuleByNamespace(final URI namespace);
-    
-    Module findModuleByNamespaceAndRevision(final URI namespace,final Date revision);
+    default Set<Module> findModuleByNamespace(final URI namespace) {
+        return Sets.filter(getModules(), m -> namespace.equals(m.getNamespace()));
+    }
+
+    /**
+     * Returns module instance based on given namespace and revision. If
+     * revision is not specified, returns module with newest revision.
+     *
+     * @param namespace Module namespace, may be null
+     * @param revision Module revision, may be null
+     * @return Matching module or null if a match is not found
+     */
+    default 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;
+    }
+
+    /**
+     * Get yang source code represented as string for matching
+     * {@link org.opendaylight.yangtools.yang.model.api.ModuleIdentifier}.
+     *
+     * @param moduleIdentifier must provide a non-null
+     *        {@link org.opendaylight.yangtools.yang.model.api.ModuleIdentifier#getName()}, other methods might return
+     *        null.
+     * @return value iif matching module is found in schema context.
+     */
+    Optional<String> getModuleSource(ModuleIdentifier moduleIdentifier);
+
+    /**
+     * Get all module and submodule identifiers.
+     */
+    Set<ModuleIdentifier> getAllModuleIdentifiers();
 }