Bug 1010: Implement restconf error responses

[controller.git] / opendaylight / md-sal / sal-dom-broker / src / main / java / org / opendaylight / controller / sal / dom / broker / impl / DataReaderRouter.xtend

diff --git a/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/sal/dom/broker/impl/DataReaderRouter.xtend b/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/sal/dom/broker/impl/DataReaderRouter.xtend
index 1e0f3385ccf78bdf418261c15077d2d056fad1f1..95d0018b2117c8c970a61c7902bbc44f2b3d8396 100644 (file)
--- a/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/sal/dom/broker/impl/DataReaderRouter.xtend
+++ b/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/sal/dom/broker/impl/DataReaderRouter.xtend
@@ -1,13 +1,106 @@
+/*
+ * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
 package org.opendaylight.controller.sal.dom.broker.impl
 
+import java.net.URI
+import java.util.ArrayList
+import java.util.Collection
+import java.util.Collections
+import java.util.HashMap
+import java.util.Map
+import java.util.Map.Entry
+import java.util.Set
 import org.opendaylight.controller.md.sal.common.impl.routing.AbstractDataReadRouter
-import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier
+import org.opendaylight.yangtools.yang.common.QName
 import org.opendaylight.yangtools.yang.data.api.CompositeNode
+import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier
+import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.NodeIdentifierWithPredicates
+import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.PathArgument
+import org.opendaylight.yangtools.yang.data.api.Node
+import org.opendaylight.yangtools.yang.data.api.SimpleNode
+import org.opendaylight.yangtools.yang.data.impl.CompositeNodeTOImpl
+import org.slf4j.LoggerFactory
+
+import static com.google.common.base.Preconditions.*
 
 class DataReaderRouter extends AbstractDataReadRouter<InstanceIdentifier, CompositeNode> {
+    private static val LOG = LoggerFactory.getLogger(DataReaderRouter);
+    private static val NETCONF_NAMESPACE = URI.create("urn:ietf:params:xml:ns:netconf:base:1.0")
+    private static val NETCONF_DATA = new QName(NETCONF_NAMESPACE,"data");
 
     override protected merge(InstanceIdentifier path, Iterable<CompositeNode> data) {
-        return data.iterator.next
+        val pathArgument = path.path.last;
+        var empty = true;
+        var name = pathArgument?.nodeType;
+        val nodes = new ArrayList<Node<?>>();
+        val keyNodes = new HashMap<QName, SimpleNode<?>>();
+        for(dataBit : data) {
+            try {
+                if(pathArgument != null && dataBit != null) {
+                    empty = false;
+                    val keyNodesLocal = getKeyNodes(pathArgument,dataBit);
+                    nodes.addAll(dataBit.childrenWithout(keyNodesLocal.entrySet));
+                } else if (dataBit != null) {
+                    empty = false;
+                    nodes.addAll(dataBit.children)
+                }
+            }   catch (IllegalStateException e) {
+                LOG.error("BUG: Readed data for path {} was invalid",path,e);
+            }
+        }
+        if(empty) {
+            return null;
+        }
+        /**
+         * Reading from Root
+         * 
+         */
+        if(pathArgument == null) {
+            return new CompositeNodeTOImpl(NETCONF_DATA,null,nodes);
+        }
+        val finalNodes = new ArrayList<Node<?>>();
+        finalNodes.addAll(keyNodes.values);
+        finalNodes.addAll(nodes);
+        return new CompositeNodeTOImpl(name,null,finalNodes);
     }
-
+    
+    
+    
+    dispatch def Map<QName, SimpleNode<?>> getKeyNodes(PathArgument argument, CompositeNode node) {
+        return Collections.emptyMap();
+    }
+    
+    dispatch def getKeyNodes(NodeIdentifierWithPredicates argument, CompositeNode node) {
+        val ret = new HashMap<QName, SimpleNode<?>>();
+        for (keyValue : argument.keyValues.entrySet) {
+            val simpleNode = node.getSimpleNodesByName(keyValue.key);
+            if(simpleNode !== null && !simpleNode.empty) {
+                checkState(simpleNode.size <= 1,"Only one simple node for key $s is allowed in node $s",keyValue.key,node);
+                checkState(simpleNode.get(0).value == keyValue.value,"Key node must equal to instance identifier value in node $s",node);
+                ret.put(keyValue.key,simpleNode.get(0));
+            }
+            val compositeNode = node.getCompositesByName(keyValue.key);
+            checkState(compositeNode === null || compositeNode.empty,"Key node must be Simple Node, not composite node.");
+        }
+        return ret;
+    }
+    
+    def Collection<? extends Node<?>> childrenWithout(CompositeNode node, Set<Entry<QName, SimpleNode<?>>> entries) {
+        if(entries.empty) {
+            return node.children;
+        }
+        val filteredNodes = new ArrayList<Node<?>>();
+        for(scannedNode : node.children) {
+            if(!entries.contains(scannedNode.nodeType)) {
+                filteredNodes.add(scannedNode);
+            }
+        }
+        return filteredNodes;
+    }
+    
 }