BUG-1092: rename data.api.InstanceIdentifier to YangInstanceIdentifier
[yangtools.git] / yang / yang-data-impl / src / test / java / org / opendaylight / yangtools / yang / data / impl / NodeHelper.java
index 6a8810aa8dc5b674d2aa80a6a24dd6918e90fb03..74e9e8ed1b1c918af7d5953d9954b8b647d6fd22 100644 (file)
-/*\r
- * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.\r
- *\r
- * This program and the accompanying materials are made available under the\r
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,\r
- * and is available at http://www.eclipse.org/legal/epl-v10.html\r
- */\r
-package org.opendaylight.yangtools.yang.data.impl;\r
-\r
-import groovy.lang.Binding;\r
-import groovy.lang.GroovyShell;\r
-import groovy.lang.Script;\r
-\r
-import java.io.ByteArrayInputStream;\r
-import java.io.ByteArrayOutputStream;\r
-import java.io.IOException;\r
-import java.io.InputStream;\r
-import java.io.InputStreamReader;\r
-import java.io.PrintStream;\r
-import java.io.Reader;\r
-import java.io.StringWriter;\r
-import java.lang.reflect.Method;\r
-import java.text.MessageFormat;\r
-import java.util.ArrayList;\r
-import java.util.List;\r
-import java.util.Set;\r
-\r
-import javax.xml.transform.OutputKeys;\r
-import javax.xml.transform.Transformer;\r
-import javax.xml.transform.TransformerException;\r
-import javax.xml.transform.TransformerFactory;\r
-import javax.xml.transform.dom.DOMSource;\r
-import javax.xml.transform.stream.StreamResult;\r
-\r
-import org.custommonkey.xmlunit.Diff;\r
-import org.junit.Assert;\r
-import org.opendaylight.yangtools.yang.common.QName;\r
-import org.opendaylight.yangtools.yang.data.api.CompositeNode;\r
-import org.opendaylight.yangtools.yang.data.api.Node;\r
-import org.opendaylight.yangtools.yang.model.api.Module;\r
-import org.opendaylight.yangtools.yang.model.api.SchemaContext;\r
-import org.opendaylight.yangtools.yang.model.parser.api.YangModelParser;\r
-import org.opendaylight.yangtools.yang.parser.impl.YangParserImpl;\r
-import org.slf4j.Logger;\r
-import org.slf4j.LoggerFactory;\r
-import org.w3c.dom.Document;\r
-import org.xml.sax.SAXException;\r
-\r
-/**\r
- * @author michal.rehak\r
- *\r
- */\r
-public abstract class NodeHelper {\r
-\r
-    private static final Logger LOG = LoggerFactory.getLogger(NodeHelper.class);\r
-\r
-    /** xml source of example network configuration */\r
-    public static final String NETWORK_XML =\r
-      "<network xmlns=\"urn:opendaylight:controller:network\">\n" +\r
-      //"<network>\n" +\r
-      "    <topologies>\n" +\r
-      "        <topology>\n" +\r
-      "            <topology-id>topId_01</topology-id>\n" +\r
-      "            <nodes>\n" +\r
-      "                <node>\n" +\r
-      "                    <node-id>nodeId_02</node-id>\n" +\r
-      "                    <supporting-ne>networkId_02</supporting-ne>\n" +\r
-      "                    <termination-points>\n" +\r
-      "                        <termination-point>\n" +\r
-      "                            <tp-id>tpId_03</tp-id>\n" +\r
-      "                        </termination-point>\n" +\r
-      "                    </termination-points>\n" +\r
-      "                </node>\n" +\r
-      "                <node>\n" +\r
-      "                    <node-id>nodeId_16</node-id>\n" +\r
-      "                    <supporting-ne>networkId_17</supporting-ne>\n" +\r
-      "                    <termination-points>\n" +\r
-      "                        <termination-point>\n" +\r
-      "                            <tp-id>tpId_18</tp-id>\n" +\r
-      "                        </termination-point>\n" +\r
-      "                    </termination-points>\n" +\r
-      "                </node>\n" +\r
-      "                <node>\n" +\r
-      "                    <node-id>nodeId_19</node-id>\n" +\r
-      "                    <supporting-ne>networkId_20</supporting-ne>\n" +\r
-      "                    <termination-points>\n" +\r
-      "                        <termination-point>\n" +\r
-      "                            <tp-id>tpId_18</tp-id>\n" +\r
-      "                        </termination-point>\n" +\r
-      "                        <termination-point>\n" +\r
-      "                            <tp-id>tpId_19</tp-id>\n" +\r
-      "                        </termination-point>\n" +\r
-      "                    </termination-points>\n" +\r
-      "                </node>\n" +\r
-      "            </nodes>\n" +\r
-      "            <links>\n" +\r
-      "                <link>\n" +\r
-      "                    <link-id>linkId_04</link-id>\n" +\r
-      "                    <source>\n" +\r
-      "                        <source-node>nodeId_05</source-node>\n" +\r
-      "                        <source-tp>tpId_06</source-tp>\n" +\r
-      "                    </source>\n" +\r
-      "                    <destination>\n" +\r
-      "                        <dest-node>nodeId_07</dest-node>\n" +\r
-      "                        <dest-tp>tpId_08</dest-tp>\n" +\r
-      "                    </destination>\n" +\r
-      "                </link>\n" +\r
-      "                <link>\n" +\r
-      "                    <link-id>linkId_11</link-id>\n" +\r
-      "                    <source>\n" +\r
-      "                        <source-node>nodeId_12</source-node>\n" +\r
-      "                        <source-tp>tpId_13</source-tp>\n" +\r
-      "                    </source>\n" +\r
-      "                    <destination>\n" +\r
-      "                        <dest-node>nodeId_14</dest-node>\n" +\r
-      "                        <dest-tp>tpId_15</dest-tp>\n" +\r
-      "                    </destination>\n" +\r
-      "                </link>\n" +\r
-      "            </links>\n" +\r
-      "        </topology>\n" +\r
-      "    </topologies>\n" +\r
-      "    <network-elements>\n" +\r
-      "        <network-element>\n" +\r
-      "            <element-id>ntElementId_09</element-id>\n" +\r
-      "        </network-element>\n" +\r
-      "        <network-element>\n" +\r
-      "            <element-id>ntElementId_10</element-id>\n" +\r
-      "        </network-element>\n" +\r
-      "    </network-elements>\n" +\r
-      "</network>";\r
-\r
-    private static String domTreeString(Document domTree) throws TransformerException {\r
-        TransformerFactory transformerFact = TransformerFactory.newInstance();\r
-        transformerFact.setAttribute("indent-number", 4);\r
-        Transformer transformer = transformerFact.newTransformer();\r
-        transformer.setOutputProperty(OutputKeys.INDENT, "yes");\r
-        //initialize StreamResult with File object to save to file\r
-        StreamResult result = new StreamResult(new StringWriter());\r
-        DOMSource source = new DOMSource(domTree);\r
-        transformer.transform(source, result);\r
-        return result.getWriter().toString();\r
-    }\r
-\r
-    /**\r
-     * @param domTree\r
-     * @param out\r
-     * @throws Exception\r
-     */\r
-    private static void dumpDoc(Document domTree, PrintStream out) throws Exception {\r
-      out.println(domTreeString(domTree));\r
-    }\r
-\r
-       public static void dumpDoc(Document domTree, Logger logger) throws TransformerException {\r
-               logger.info("{}", domTreeString(domTree));\r
-       }\r
-\r
-    /**\r
-     * @param qName\r
-     * @return example tree, see {@link #NETWORK_XML}\r
-     */\r
-    public static CompositeNode buildTestConfigTree(QName qName) {\r
-        List<Node<?>> value = new ArrayList<Node<?>>();\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "element-id"), null, "ntElementId_09"));\r
-        CompositeNode ntElementNode1 = NodeFactory.createImmutableCompositeNode(new QName(qName, "network-element"), null, value);\r
-        assignParentToChildren(ntElementNode1);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "element-id"), null, "ntElementId_10"));\r
-        CompositeNode ntElementNode2 = NodeFactory.createImmutableCompositeNode(new QName(qName, "network-element"), null, value);\r
-        assignParentToChildren(ntElementNode2);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(ntElementNode1);\r
-        value.add(ntElementNode2);\r
-        CompositeNode ntElementsNode = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "network-elements"), null, value);\r
-        assignParentToChildren(ntElementsNode);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "dest-node"), null, "nodeId_07"));\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "dest-tp"), null, "tpId_08"));\r
-        CompositeNode destination = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "destination"), null, value);\r
-        assignParentToChildren(destination);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "source-node"), null, "nodeId_05"));\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "source-tp"), null, "tpId_06"));\r
-        CompositeNode source = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "source"), null, value);\r
-        assignParentToChildren(source);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "link-id"), null, "linkId_04"));\r
-        value.add(source);\r
-        value.add(destination);\r
-        CompositeNode link1 = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "link"), null, value);\r
-        assignParentToChildren(link1);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "dest-node"), null, "nodeId_14"));\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "dest-tp"), null, "tpId_15"));\r
-        destination = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "destination"), null, value);\r
-        assignParentToChildren(destination);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "source-node"), null, "nodeId_12"));\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "source-tp"), null, "tpId_13"));\r
-        source = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "source"), null, value);\r
-        assignParentToChildren(source);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "link-id"), null, "linkId_11"));\r
-        value.add(source);\r
-        value.add(destination);\r
-        CompositeNode link2 = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "link"), null, value);\r
-        assignParentToChildren(link2);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(link1);\r
-        value.add(link2);\r
-        CompositeNode links = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "links"), null, value);\r
-        assignParentToChildren(links);\r
-\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "tp-id"), null, "tpId_03"));\r
-        CompositeNode terminationPointNode1 = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "termination-point"), null, value);\r
-        assignParentToChildren(terminationPointNode1);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(terminationPointNode1);\r
-        CompositeNode terminationPointsNode = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "termination-points"), null, value);\r
-        assignParentToChildren(terminationPointsNode);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "node-id"), null, "nodeId_02"));\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "supporting-ne"), null, "networkId_02"));\r
-        value.add(terminationPointsNode);\r
-        CompositeNode node1Node = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "node"), null, value);\r
-        assignParentToChildren(node1Node);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "tp-id"), null, "tpId_18"));\r
-        terminationPointNode1 = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "termination-point"), null, value);\r
-        assignParentToChildren(terminationPointNode1);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(terminationPointNode1);\r
-        terminationPointsNode = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "termination-points"), null, value);\r
-        assignParentToChildren(terminationPointsNode);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "node-id"), null, "nodeId_16"));\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "supporting-ne"), null, "networkId_17"));\r
-        value.add(terminationPointsNode);\r
-        CompositeNode node2Node = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "node"), null, value);\r
-        assignParentToChildren(node2Node);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "tp-id"), null, "tpId_18"));\r
-        terminationPointNode1 = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "termination-point"), null, value);\r
-        assignParentToChildren(terminationPointNode1);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "tp-id"), null, "tpId_19"));\r
-        CompositeNode terminationPointNode2 = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "termination-point"), null, value);\r
-        assignParentToChildren(terminationPointNode2);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(terminationPointNode1);\r
-        value.add(terminationPointNode2);\r
-        terminationPointsNode = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "termination-points"), null, value);\r
-        assignParentToChildren(terminationPointsNode);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "node-id"), null, "nodeId_19"));\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "supporting-ne"), null, "networkId_20"));\r
-        value.add(terminationPointsNode);\r
-        CompositeNode node3Node = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "node"), null, value);\r
-        assignParentToChildren(node3Node);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(node1Node);\r
-        value.add(node2Node);\r
-        value.add(node3Node);\r
-        CompositeNode nodesNode = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "nodes"), null, value);\r
-        assignParentToChildren(nodesNode);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(links);\r
-        value.add(nodesNode);\r
-        value.add(NodeFactory.createImmutableSimpleNode(new QName(qName, "topology-id"), null, "topId_01"));\r
-        CompositeNode topology = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "topology"), null, value);\r
-        assignParentToChildren(topology);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(topology);\r
-        CompositeNode topologies = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "topologies"), null, value);\r
-        assignParentToChildren(topologies);\r
-\r
-        value = new ArrayList<Node<?>>();\r
-        value.add(topologies);\r
-        value.add(ntElementsNode);\r
-        CompositeNode network = NodeFactory.createImmutableCompositeNode(\r
-                new QName(qName, "network"), null, value);\r
-        assignParentToChildren(network);\r
-\r
-        return network;\r
-    }\r
-\r
-    /**\r
-     * @param parentNode\r
-     */\r
-    public static void assignParentToChildren(CompositeNode parentNode) {\r
-        for (Node<?> child : parentNode.getChildren()) {\r
-            ((AbstractNodeTO<?>) child).setParent(parentNode);\r
-        }\r
-    }\r
-\r
-    /**\r
-     * @return schema context of controller-network.yang\r
-     */\r
-    public static SchemaContext loadSchemaContext() {\r
-        YangModelParser yParser = new YangParserImpl();\r
-        List<InputStream> yangInputStreams = new ArrayList<>();\r
-        yangInputStreams.add(NodeHelper.class.getResourceAsStream(\r
-                "/controller-network.yang"));\r
-        yangInputStreams.add(NodeHelper.class.getResourceAsStream(\r
-                "/ietf-inet-types@2010-09-24.yang"));\r
-        Set<Module> modules = yParser\r
-                .parseYangModelsFromStreams(yangInputStreams);\r
-        return yParser.resolveSchemaContext(modules);\r
-    }\r
-\r
-    /**\r
-     * @param scriptName\r
-     * @return tree root\r
-     * @throws Exception\r
-     */\r
-    public static CompositeNode loadConfigByGroovy(String scriptName) throws Exception {\r
-       InputStream configStream = NodeHelper.class.getResourceAsStream(scriptName);\r
-       Binding binding = new Binding();\r
-       GroovyShell gShell = new GroovyShell(binding);\r
-       LOG.debug("groovy: starting script parse..  " + scriptName);\r
-               Script configScript = gShell.parse(new InputStreamReader(configStream));\r
-               LOG.debug("groovy: starting script..  " + scriptName);\r
-               configScript.run();\r
-               LOG.debug("groovy: digging result");\r
-       Object xmlGen = binding.getVariable("xmlGen");\r
-       LOG.debug("xmlGen = " + xmlGen);\r
-       Method getter = xmlGen.getClass().getDeclaredMethod("getBuilder", new Class[0]);\r
-       MyNodeBuilder builder = (MyNodeBuilder) getter.invoke(xmlGen, new Object[0]);\r
-\r
-       return builder.getRootNode();\r
-    }\r
-\r
-    /**\r
-     * @param pattern , e.g.: <pre>"//{0}:network/{1}:xx[text() = 'sss']"</pre>\r
-     * @param nsArg , e.g.: <pre>{"uri:ns1", "uri:ns2"}</pre>\r
-     * @return pattern with namespaces: <pre>//uri:ns1:network/uri:ns2:xx[text() = ''sss'']"</pre>\r
-     */\r
-    public static String AddNamespaceToPattern(String pattern, Object... nsArg) {\r
-        Object[] ns = nsArg;\r
-        String patternNs = pattern.replaceAll("'", "''");\r
-        if (ns == null) {\r
-            ns = new Object[]{""};\r
-        } else {\r
-            // add ':' into pattern after placeholders\r
-            patternNs = patternNs.replaceAll("(\\{[0-9]+\\})", "$1:");\r
-        }\r
-\r
-        return MessageFormat.format(patternNs, ns);\r
-    }\r
-\r
-    /**\r
-     * @param tree\r
-     * @param xmlFile\r
-     * @param clazz\r
-     * @throws Exception\r
-     * @throws SAXException\r
-     * @throws IOException\r
-     */\r
-    public static void compareXmlTree(Document tree, String xmlFile, Class<?> clazz) throws Exception,\r
-            SAXException, IOException {\r
-        ByteArrayOutputStream actualRaw = new ByteArrayOutputStream();\r
-        dumpDoc(tree, new PrintStream(actualRaw));\r
-        Reader actualReader = new InputStreamReader(new ByteArrayInputStream(actualRaw.toByteArray()));\r
-\r
-        Reader expectedReader = new InputStreamReader(clazz.getResourceAsStream(xmlFile));\r
-        Diff myDiff = new Diff(expectedReader, actualReader);\r
-        myDiff.overrideDifferenceListener(new IgnoreWhiteCharsDiffListener());\r
-\r
-        boolean similar = myDiff.similar();\r
-        if (! similar) {\r
-            LOG.info("{}", new String(actualRaw.toByteArray()));\r
-        }\r
-        Assert.assertEquals(myDiff.toString(), true, similar);\r
-    }\r
-}\r
+/*
+ * Copyright (c) 2013 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.yangtools.yang.data.impl;
+
+import groovy.lang.Binding;
+import groovy.lang.GroovyShell;
+import groovy.lang.Script;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.PrintStream;
+import java.io.Reader;
+import java.io.StringWriter;
+import java.lang.reflect.Method;
+import java.text.MessageFormat;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+
+import javax.xml.transform.OutputKeys;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerException;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.dom.DOMSource;
+import javax.xml.transform.stream.StreamResult;
+
+import org.custommonkey.xmlunit.Diff;
+import org.junit.Assert;
+import org.opendaylight.yangtools.yang.common.QName;
+import org.opendaylight.yangtools.yang.data.api.CompositeNode;
+import org.opendaylight.yangtools.yang.data.api.Node;
+import org.opendaylight.yangtools.yang.model.api.Module;
+import org.opendaylight.yangtools.yang.model.api.SchemaContext;
+import org.opendaylight.yangtools.yang.model.parser.api.YangModelParser;
+import org.opendaylight.yangtools.yang.parser.impl.YangParserImpl;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.w3c.dom.Document;
+import org.xml.sax.SAXException;
+
+/**
+ * @author michal.rehak
+ *
+ */
+public abstract class NodeHelper {
+
+    private static final Logger LOG = LoggerFactory.getLogger(NodeHelper.class);
+
+    /** xml source of example network configuration */
+    public static final String NETWORK_XML =
+            "<network xmlns=\"urn:opendaylight:controller:network\">\n" +
+                    //"<network>\n" +
+                    "    <topologies>\n" +
+                    "        <topology>\n" +
+                    "            <topology-id>topId_01</topology-id>\n" +
+                    "            <nodes>\n" +
+                    "                <node>\n" +
+                    "                    <node-id>nodeId_02</node-id>\n" +
+                    "                    <supporting-ne>networkId_02</supporting-ne>\n" +
+                    "                    <termination-points>\n" +
+                    "                        <termination-point>\n" +
+                    "                            <tp-id>tpId_03</tp-id>\n" +
+                    "                        </termination-point>\n" +
+                    "                    </termination-points>\n" +
+                    "                </node>\n" +
+                    "                <node>\n" +
+                    "                    <node-id>nodeId_16</node-id>\n" +
+                    "                    <supporting-ne>networkId_17</supporting-ne>\n" +
+                    "                    <termination-points>\n" +
+                    "                        <termination-point>\n" +
+                    "                            <tp-id>tpId_18</tp-id>\n" +
+                    "                        </termination-point>\n" +
+                    "                    </termination-points>\n" +
+                    "                </node>\n" +
+                    "                <node>\n" +
+                    "                    <node-id>nodeId_19</node-id>\n" +
+                    "                    <supporting-ne>networkId_20</supporting-ne>\n" +
+                    "                    <termination-points>\n" +
+                    "                        <termination-point>\n" +
+                    "                            <tp-id>tpId_18</tp-id>\n" +
+                    "                        </termination-point>\n" +
+                    "                        <termination-point>\n" +
+                    "                            <tp-id>tpId_19</tp-id>\n" +
+                    "                        </termination-point>\n" +
+                    "                    </termination-points>\n" +
+                    "                </node>\n" +
+                    "            </nodes>\n" +
+                    "            <links>\n" +
+                    "                <link>\n" +
+                    "                    <link-id>linkId_04</link-id>\n" +
+                    "                    <source>\n" +
+                    "                        <source-node>nodeId_05</source-node>\n" +
+                    "                        <source-tp>tpId_06</source-tp>\n" +
+                    "                    </source>\n" +
+                    "                    <destination>\n" +
+                    "                        <dest-node>nodeId_07</dest-node>\n" +
+                    "                        <dest-tp>tpId_08</dest-tp>\n" +
+                    "                    </destination>\n" +
+                    "                </link>\n" +
+                    "                <link>\n" +
+                    "                    <link-id>linkId_11</link-id>\n" +
+                    "                    <source>\n" +
+                    "                        <source-node>nodeId_12</source-node>\n" +
+                    "                        <source-tp>tpId_13</source-tp>\n" +
+                    "                    </source>\n" +
+                    "                    <destination>\n" +
+                    "                        <dest-node>nodeId_14</dest-node>\n" +
+                    "                        <dest-tp>tpId_15</dest-tp>\n" +
+                    "                    </destination>\n" +
+                    "                </link>\n" +
+                    "            </links>\n" +
+                    "        </topology>\n" +
+                    "    </topologies>\n" +
+                    "    <network-elements>\n" +
+                    "        <network-element>\n" +
+                    "            <element-id>ntElementId_09</element-id>\n" +
+                    "        </network-element>\n" +
+                    "        <network-element>\n" +
+                    "            <element-id>ntElementId_10</element-id>\n" +
+                    "        </network-element>\n" +
+                    "    </network-elements>\n" +
+                    "</network>";
+
+    private static String domTreeString(final Document domTree) throws TransformerException {
+        TransformerFactory transformerFact = TransformerFactory.newInstance();
+        transformerFact.setAttribute("indent-number", 4);
+        Transformer transformer = transformerFact.newTransformer();
+        transformer.setOutputProperty(OutputKeys.INDENT, "yes");
+        //initialize StreamResult with File object to save to file
+        StreamResult result = new StreamResult(new StringWriter());
+        DOMSource source = new DOMSource(domTree);
+        transformer.transform(source, result);
+        return result.getWriter().toString();
+    }
+
+    /**
+     * @param domTree
+     * @param out
+     * @throws Exception
+     */
+    private static void dumpDoc(final Document domTree, final PrintStream out) throws Exception {
+        out.println(domTreeString(domTree));
+    }
+
+    public static void dumpDoc(final Document domTree, final Logger logger) throws TransformerException {
+        logger.info("{}", domTreeString(domTree));
+    }
+
+    /**
+     * @param qName
+     * @return example tree, see {@link #NETWORK_XML}
+     */
+    public static CompositeNode buildTestConfigTree(final QName qName) {
+        List<Node<?>> value = new ArrayList<Node<?>>();
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "element-id"), null, "ntElementId_09"));
+        CompositeNode ntElementNode1 = NodeFactory.createImmutableCompositeNode(QName.create(qName, "network-element"),
+                null, value);
+        assignParentToChildren(ntElementNode1);
+
+        value = new ArrayList<Node<?>>();
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "element-id"), null, "ntElementId_10"));
+        CompositeNode ntElementNode2 = NodeFactory.createImmutableCompositeNode(QName.create(qName, "network-element"),
+                null, value);
+        assignParentToChildren(ntElementNode2);
+
+        value = new ArrayList<Node<?>>();
+        value.add(ntElementNode1);
+        value.add(ntElementNode2);
+        CompositeNode ntElementsNode = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "network-elements"), null, value);
+        assignParentToChildren(ntElementsNode);
+
+        value = new ArrayList<Node<?>>();
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "dest-node"), null, "nodeId_07"));
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "dest-tp"), null, "tpId_08"));
+        CompositeNode destination = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "destination"), null,
+                value);
+        assignParentToChildren(destination);
+
+        value = new ArrayList<Node<?>>();
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "source-node"), null, "nodeId_05"));
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "source-tp"), null, "tpId_06"));
+        CompositeNode source = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "source"), null, value);
+        assignParentToChildren(source);
+
+        value = new ArrayList<Node<?>>();
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "link-id"), null, "linkId_04"));
+        value.add(source);
+        value.add(destination);
+        CompositeNode link1 = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "link"), null, value);
+        assignParentToChildren(link1);
+
+        value = new ArrayList<Node<?>>();
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "dest-node"), null, "nodeId_14"));
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "dest-tp"), null, "tpId_15"));
+        destination = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "destination"), null, value);
+        assignParentToChildren(destination);
+
+        value = new ArrayList<Node<?>>();
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "source-node"), null, "nodeId_12"));
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "source-tp"), null, "tpId_13"));
+        source = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "source"), null, value);
+        assignParentToChildren(source);
+
+        value = new ArrayList<Node<?>>();
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "link-id"), null, "linkId_11"));
+        value.add(source);
+        value.add(destination);
+        CompositeNode link2 = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "link"), null, value);
+        assignParentToChildren(link2);
+
+        value = new ArrayList<Node<?>>();
+        value.add(link1);
+        value.add(link2);
+        CompositeNode links = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "links"), null, value);
+        assignParentToChildren(links);
+
+
+        value = new ArrayList<Node<?>>();
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "tp-id"), null, "tpId_03"));
+        CompositeNode terminationPointNode1 = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "termination-point"), null, value);
+        assignParentToChildren(terminationPointNode1);
+
+        value = new ArrayList<Node<?>>();
+        value.add(terminationPointNode1);
+        CompositeNode terminationPointsNode = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "termination-points"), null, value);
+        assignParentToChildren(terminationPointsNode);
+
+        value = new ArrayList<Node<?>>();
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "node-id"), null, "nodeId_02"));
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "supporting-ne"), null, "networkId_02"));
+        value.add(terminationPointsNode);
+        CompositeNode node1Node = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "node"), null, value);
+        assignParentToChildren(node1Node);
+
+        value = new ArrayList<Node<?>>();
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "tp-id"), null, "tpId_18"));
+        terminationPointNode1 = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "termination-point"),
+                null, value);
+        assignParentToChildren(terminationPointNode1);
+
+        value = new ArrayList<Node<?>>();
+        value.add(terminationPointNode1);
+        terminationPointsNode = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "termination-points"),
+                null, value);
+        assignParentToChildren(terminationPointsNode);
+
+        value = new ArrayList<Node<?>>();
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "node-id"), null, "nodeId_16"));
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "supporting-ne"), null, "networkId_17"));
+        value.add(terminationPointsNode);
+        CompositeNode node2Node = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "node"), null, value);
+        assignParentToChildren(node2Node);
+
+        value = new ArrayList<Node<?>>();
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "tp-id"), null, "tpId_18"));
+        terminationPointNode1 = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "termination-point"),
+                null, value);
+        assignParentToChildren(terminationPointNode1);
+
+        value = new ArrayList<Node<?>>();
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "tp-id"), null, "tpId_19"));
+        CompositeNode terminationPointNode2 = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "termination-point"), null, value);
+        assignParentToChildren(terminationPointNode2);
+
+        value = new ArrayList<Node<?>>();
+        value.add(terminationPointNode1);
+        value.add(terminationPointNode2);
+        terminationPointsNode = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "termination-points"),
+                null, value);
+        assignParentToChildren(terminationPointsNode);
+
+        value = new ArrayList<Node<?>>();
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "node-id"), null, "nodeId_19"));
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "supporting-ne"), null, "networkId_20"));
+        value.add(terminationPointsNode);
+        CompositeNode node3Node = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "node"), null, value);
+        assignParentToChildren(node3Node);
+
+        value = new ArrayList<Node<?>>();
+        value.add(node1Node);
+        value.add(node2Node);
+        value.add(node3Node);
+        CompositeNode nodesNode = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "nodes"), null, value);
+        assignParentToChildren(nodesNode);
+
+        value = new ArrayList<Node<?>>();
+        value.add(links);
+        value.add(nodesNode);
+        value.add(NodeFactory.createImmutableSimpleNode(QName.create(qName, "topology-id"), null, "topId_01"));
+        CompositeNode topology = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "topology"), null, value);
+        assignParentToChildren(topology);
+
+        value = new ArrayList<Node<?>>();
+        value.add(topology);
+        CompositeNode topologies = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "topologies"), null,
+                value);
+        assignParentToChildren(topologies);
+
+        value = new ArrayList<Node<?>>();
+        value.add(topologies);
+        value.add(ntElementsNode);
+        CompositeNode network = NodeFactory.createImmutableCompositeNode(
+                QName.create(qName, "network"), null, value);
+        assignParentToChildren(network);
+
+        return network;
+    }
+
+    /**
+     * @param parentNode
+     */
+    public static void assignParentToChildren(final CompositeNode parentNode) {
+        for (Node<?> child : parentNode.getValue()) {
+            ((AbstractNodeTO<?>) child).setParent(parentNode);
+        }
+    }
+
+    /**
+     * @return schema context of controller-network.yang
+     */
+    public static SchemaContext loadSchemaContext() {
+        YangModelParser yParser = new YangParserImpl();
+        List<InputStream> yangInputStreams = new ArrayList<>();
+        yangInputStreams.add(NodeHelper.class.getResourceAsStream(
+                "/controller-network.yang"));
+        yangInputStreams.add(NodeHelper.class.getResourceAsStream(
+                "/ietf-inet-types@2010-09-24.yang"));
+        Set<Module> modules = yParser
+                .parseYangModelsFromStreams(yangInputStreams);
+        return yParser.resolveSchemaContext(modules);
+    }
+
+    /**
+     * @param scriptName
+     * @return tree root
+     * @throws Exception
+     */
+    public static CompositeNode loadConfigByGroovy(final String scriptName) throws Exception {
+        InputStream configStream = NodeHelper.class.getResourceAsStream(scriptName);
+        Binding binding = new Binding();
+        GroovyShell gShell = new GroovyShell(binding);
+        LOG.debug("groovy: starting script parse..  {}", scriptName);
+        Script configScript = gShell.parse(new InputStreamReader(configStream));
+        LOG.debug("groovy: starting script..  {}", scriptName);
+        configScript.run();
+        LOG.debug("groovy: digging result");
+        Object xmlGen = binding.getVariable("xmlGen");
+        LOG.debug("xmlGen = {}", xmlGen);
+        Method getter = xmlGen.getClass().getDeclaredMethod("getBuilder", new Class[0]);
+        MyNodeBuilder builder = (MyNodeBuilder) getter.invoke(xmlGen, new Object[0]);
+
+        return builder.getRootNode();
+    }
+
+    /**
+     * @param pattern , e.g.: <pre>"//{0}:network/{1}:xx[text() = 'sss']"</pre>
+     * @param nsArg , e.g.: <pre>{"uri:ns1", "uri:ns2"}</pre>
+     * @return pattern with namespaces: <pre>//uri:ns1:network/uri:ns2:xx[text() = ''sss'']"</pre>
+     */
+    public static String AddNamespaceToPattern(final String pattern, final Object... nsArg) {
+        Object[] ns = nsArg;
+        String patternNs = pattern.replaceAll("'", "''");
+        if (ns == null) {
+            ns = new Object[]{""};
+        } else {
+            // add ':' into pattern after placeholders
+            patternNs = patternNs.replaceAll("(\\{[0-9]+\\})", "$1:");
+        }
+
+        return MessageFormat.format(patternNs, ns);
+    }
+
+    /**
+     * @param tree
+     * @param xmlFile
+     * @param clazz
+     * @throws Exception
+     * @throws SAXException
+     * @throws IOException
+     */
+    public static void compareXmlTree(final Document tree, final String xmlFile, final Class<?> clazz) throws Exception,
+    SAXException, IOException {
+        ByteArrayOutputStream actualRaw = new ByteArrayOutputStream();
+        dumpDoc(tree, new PrintStream(actualRaw));
+        Reader actualReader = new InputStreamReader(new ByteArrayInputStream(actualRaw.toByteArray()));
+
+        Reader expectedReader = new InputStreamReader(clazz.getResourceAsStream(xmlFile));
+        Diff myDiff = new Diff(expectedReader, actualReader);
+        myDiff.overrideDifferenceListener(new IgnoreWhiteCharsDiffListener());
+
+        boolean similar = myDiff.similar();
+        if (! similar) {
+            LOG.info("{}", new String(actualRaw.toByteArray()));
+        }
+        Assert.assertEquals(myDiff.toString(), true, similar);
+    }
+}