Leafref and identityref types to Json

[controller.git] / opendaylight / md-sal / sal-rest-connector / src / main / java / org / opendaylight / controller / sal / restconf / impl / ControllerContext.xtend

diff --git a/opendaylight/md-sal/sal-rest-connector/src/main/java/org/opendaylight/controller/sal/restconf/impl/ControllerContext.xtend b/opendaylight/md-sal/sal-rest-connector/src/main/java/org/opendaylight/controller/sal/restconf/impl/ControllerContext.xtend
index 065d01e8e9405058f563189e6f5117d30eed4857..470b4735a441ad7b5f3e8f421c53fea904d033d3 100644 (file)
--- a/opendaylight/md-sal/sal-rest-connector/src/main/java/org/opendaylight/controller/sal/restconf/impl/ControllerContext.xtend
+++ b/opendaylight/md-sal/sal-rest-connector/src/main/java/org/opendaylight/controller/sal/restconf/impl/ControllerContext.xtend
@@ -27,6 +27,9 @@ import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode
 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode
 import org.opendaylight.yangtools.yang.model.api.RpcDefinition
 import org.opendaylight.yangtools.yang.model.api.SchemaContext
+import org.opendaylight.yangtools.yang.model.api.SchemaNode
+import org.opendaylight.yangtools.yang.model.api.type.LeafrefTypeDefinition
+import org.opendaylight.yangtools.yang.model.util.SchemaContextUtil
 
 import static com.google.common.base.Preconditions.*
 
@@ -36,13 +39,11 @@ class ControllerContext implements SchemaServiceListener {
 
     val static NULL_VALUE = "null"
 
-    @Property
-    SchemaContext schemas;
+    var SchemaContext schemas;
 
     private val BiMap<URI, String> uriToModuleName = HashBiMap.create();
     private val Map<String, URI> moduleNameToUri = uriToModuleName.inverse();
-    private val Map<QName,RpcDefinition> qnameToRpc = new ConcurrentHashMap();
-    
+    private val Map<QName, RpcDefinition> qnameToRpc = new ConcurrentHashMap();
 
     private new() {
         if (INSTANCE !== null) {
@@ -53,13 +54,17 @@ class ControllerContext implements SchemaServiceListener {
     static def getInstance() {
         return INSTANCE
     }
-    
+
     private def void checkPreconditions() {
         if (schemas === null) {
             throw new ResponseException(Response.Status.SERVICE_UNAVAILABLE, RestconfProvider::NOT_INITALIZED_MSG)
         }
     }
 
+    def setSchemas(SchemaContext schemas) {
+        onGlobalContextUpdated(schemas)
+    }
+
     public def InstanceIdWithSchemaNode toInstanceIdentifier(String restconfInstance) {
         val ret = InstanceIdentifier.builder();
         val pathArgs = restconfInstance.split("/");
@@ -73,7 +78,7 @@ class ControllerContext implements SchemaServiceListener {
         if (schemaNode === null) {
             return null
         }
-        new InstanceIdWithSchemaNode(ret.toInstance, schemaNode)
+        return new InstanceIdWithSchemaNode(ret.toInstance, schemaNode)
     }
 
     private def findModule(String restconfInstance) {
@@ -85,13 +90,13 @@ class ControllerContext implements SchemaServiceListener {
         }
         val modulWithFirstYangStatement = pathArgs.filter[s|s.contains(":")].head
         val startModule = modulWithFirstYangStatement.toModuleName();
-        schemas.getLatestModule(startModule)
+        return getLatestModule(startModule)
     }
 
-    private def getLatestModule(SchemaContext schema, String moduleName) {
-        checkNotNull(schema)
+    private def getLatestModule(String moduleName) {
+        checkPreconditions
         checkArgument(moduleName !== null && !moduleName.empty)
-        val modules = schema.modules.filter[m|m.name == moduleName]
+        val modules = schemas.modules.filter[m|m.name == moduleName]
         var latestModule = modules.head
         for (module : modules) {
             if (module.revision.after(latestModule.revision)) {
@@ -129,6 +134,25 @@ class ControllerContext implements SchemaServiceListener {
         throw new IllegalArgumentException("Conversion of generic path argument is not supported");
     }
 
+    def findModuleByNamespace(URI namespace) {
+        checkPreconditions
+        var module = uriToModuleName.get(namespace)
+        if (module === null) {
+            val moduleSchemas = schemas.findModuleByNamespace(namespace);
+            if(moduleSchemas === null) throw new IllegalArgumentException()
+            var latestModule = moduleSchemas.head
+            for (m : moduleSchemas) {
+                if (m.revision.after(latestModule.revision)) {
+                    latestModule = m
+                }
+            }
+            if(latestModule === null) throw new IllegalArgumentException()
+            uriToModuleName.put(namespace, latestModule.name)
+            module = latestModule.name;
+        }
+        return module
+    }
+
     def CharSequence toRestconfIdentifier(QName qname) {
         checkPreconditions
         var module = uriToModuleName.get(qname.namespace)
@@ -290,27 +314,54 @@ class ControllerContext implements SchemaServiceListener {
         }
     }
 
-    public def QName toQName(String name) {
+    private def QName toQName(String name) {
         val module = name.toModuleName;
         val node = name.toNodeName;
         val namespace = moduleNameToUri.get(module);
-        return new QName(namespace,null,node);
+        return new QName(namespace, null, node);
+    }
+
+    def getRpcDefinition(String name) {
+        return qnameToRpc.get(name.toQName)
     }
 
     override onGlobalContextUpdated(SchemaContext context) {
         this.schemas = context;
-        for(operation : context.operations) {
-            val qname = new QName(operation.QName.namespace,null,operation.QName.localName);
-            qnameToRpc.put(qname,operation);
+        for (operation : context.operations) {
+            val qname = new QName(operation.QName.namespace, null, operation.QName.localName);
+            qnameToRpc.put(qname, operation);
         }
     }
-    
-    def ContainerSchemaNode getRpcOutputSchema(QName name) {
-        qnameToRpc.get(name)?.output;
-    }
-    
-    def ContainerSchemaNode getRpcInputSchema(QName name) {
-        qnameToRpc.get(name)?.input;
-    }
 
+    /**
+     * Resolve target type from leafref type.
+     * 
+     * According to RFC 6020 referenced element has to be leaf (chapter 9.9).
+     * Therefore if other element is referenced then null value is returned.
+     * 
+     * Currently only cases without path-predicate are supported.
+     * 
+     * @param leafRef
+     * @param schemaNode
+     *            data schema node which contains reference
+     * @return type if leaf is referenced and it is possible to find referenced
+     *         node in schema context. In other cases null value is returned
+     */
+    def LeafSchemaNode resolveTypeFromLeafref(LeafrefTypeDefinition leafRef, DataSchemaNode schemaNode) {
+        val xPath = leafRef.getPathStatement();
+        val module = SchemaContextUtil.findParentModule(schemas, schemaNode);
+
+        var SchemaNode foundSchemaNode
+        if (xPath.isAbsolute()) {
+            foundSchemaNode = SchemaContextUtil.findDataSchemaNode(schemas, module, xPath);
+        } else {
+            foundSchemaNode = SchemaContextUtil.findDataSchemaNodeForRelativeXPath(schemas, module, schemaNode, xPath);
+        }
+
+        if (foundSchemaNode instanceof LeafSchemaNode) {
+            return foundSchemaNode as LeafSchemaNode;
+        }
+
+        return null;
+    }
 }