Fix yangparser invocation

Fix YangParser invocation in restconf-provider to address breaking
change in ODL Aluminum release.

Issue-ID: SDNC-1515
Signed-off-by: Dan Timoney <dtimoney@att.com>
Change-Id: I9974889bfa9bbd11077c95275c0cb8ba59b1b0bb

3 files changed, 57 insertions, 35 deletions

diff --git a/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfapicall/RestconfApiCallNode.java b/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfapicall/RestconfApiCallNode.java
index 679ba57b7..b5a9df706 100644
--- a/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfapicall/RestconfApiCallNode.java
+++ b/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfapicall/RestconfApiCallNode.java
@@ -3,6 +3,7 @@
  * ONAP - CCSDK
  * ================================================================================
  * Copyright (C) 2018 Huawei Technologies Co., Ltd. All rights reserved.
+ * Modifications Copyright (c) 2021 AT&T
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -48,7 +49,6 @@ import static org.onap.ccsdk.sli.plugins.yangserializers.dfserializer.DfSerializ
 import static org.onap.ccsdk.sli.plugins.yangserializers.dfserializer.DfSerializerUtil.XML_TREE_ERR;
 import static org.onap.ccsdk.sli.plugins.yangserializers.dfserializer.DfSerializerUtil.getXmlWriter;
 import static org.onap.ccsdk.sli.plugins.yangserializers.pnserializer.MdsalPropertiesNodeUtils.getModuleNamespace;
-import static org.osgi.framework.FrameworkUtil.getBundle;
 import com.google.gson.Gson;
 import com.google.gson.JsonElement;
 import com.google.gson.JsonObject;
@@ -85,10 +85,9 @@ import org.onap.ccsdk.sli.plugins.yangserializers.pnserializer.PropertiesNodeSer
 import org.opendaylight.restconf.common.context.InstanceIdentifierContext;
 import org.opendaylight.restconf.nb.rfc8040.utils.parser.ParserIdentifier;
 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
-import org.opendaylight.yangtools.yang.model.api.SchemaContext;
 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
-import org.osgi.framework.BundleContext;
-import org.osgi.framework.ServiceReference;
+import org.opendaylight.yangtools.yang.model.parser.api.YangParserException;
+import org.opendaylight.yangtools.yang.model.parser.api.YangParserFactory;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -109,12 +108,20 @@ public class RestconfApiCallNode implements SvcLogicJavaPlugin {
     private RestapiCallNode restapiCallNode;
 
     /**
-     * Creates an instance of restconf api call node with restapi call node.
+     * Yang parser factory
+     */
+    private YangParserFactory parserFactory;
+
+
+    /**
+     * Creates an instance of restconf api call node with restapi call node, within OSGi
      *
      * @param r restapi call node
+     * @param parserFactory Yang parser factory
      */
-    public RestconfApiCallNode(RestapiCallNode r) {
+    public RestconfApiCallNode(RestapiCallNode r, YangParserFactory parserFactory) {
         this.restapiCallNode = r;
+        this.parserFactory = parserFactory;
     }
 
     /**
@@ -125,6 +132,25 @@ public class RestconfApiCallNode implements SvcLogicJavaPlugin {
         return restapiCallNode;
     }
 
+
+    /**
+     * Returns the yang parser factory instance
+     * @return
+     */
+    public YangParserFactory getParserFactory() {
+        return parserFactory;
+    }
+
+    /**
+     * set the yang parser factory instance
+     * @return
+     */
+    public void setParserFactory(YangParserFactory parserFactory) {
+        this.parserFactory = parserFactory;
+    }
+
+
+
     /**
      * Sends the restconf request using the parameters map and the memory
      * context. And this method allows the directed graphs to interact with
@@ -299,21 +325,17 @@ public class RestconfApiCallNode implements SvcLogicJavaPlugin {
      * @return schema context
      * @throws SvcLogicException when schema context fetching fails
      */
-    private EffectiveModelContext getSchemaContext(YangParameters params)
-            throws SvcLogicException {
-        if (params.dirPath != null) {
-            return getSchemaCtxFromDir(params.dirPath);
-        }
-        BundleContext bc = getBundle(SchemaContext.class).getBundleContext();
-        EffectiveModelContext schemaContext = null;
-        if (bc != null) {
-            ServiceReference reference = bc.getServiceReference(
-                    SchemaContext.class);
-            if (reference != null) {
-                schemaContext = (EffectiveModelContext) bc.getService(reference);
+    private EffectiveModelContext getSchemaContext(YangParameters params) throws SvcLogicException {
+        try {
+
+            if (params.dirPath != null) {
+                return getSchemaCtxFromDir(getParserFactory(), params.dirPath);
+            } else {
+                return (getParserFactory().createParser().buildEffectiveModel());
             }
+        } catch (YangParserException e) {
+            throw new SvcLogicException("Caught exception creating yang model context", e);
         }
-        return schemaContext;
     }
 
     /**
diff --git a/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfapicall/RestconfApiUtils.java b/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfapicall/RestconfApiUtils.java
index d22c3707a..134868c15 100644
--- a/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfapicall/RestconfApiUtils.java
+++ b/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfapicall/RestconfApiUtils.java
@@ -5,6 +5,7 @@
  * Copyright (C) 2018 Huawei Technologies Co., Ltd. All rights reserved.
  *
  * Modifications Copyright © 2018 IBM.
+ * Modifications Copyright (c) 2021 AT&T
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,18 +25,13 @@ package org.onap.ccsdk.sli.plugins.restconfapicall;
 
 import static org.onap.ccsdk.sli.plugins.restapicall.RestapiCallNode.getParameters;
 import static org.onap.ccsdk.sli.plugins.restapicall.RestapiCallNode.parseParam;
-import static org.opendaylight.yangtools.yang.model.repo.api.StatementParserMode.DEFAULT_MODE;
 import static org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource.forFile;
-import static org.opendaylight.yangtools.yang.parser.rfc7950.reactor.RFC7950Reactors.defaultReactor;
-import static org.opendaylight.yangtools.yang.parser.rfc7950.repo.YangStatementStreamSource.create;
 import java.io.File;
 import java.io.IOException;
 import java.net.URI;
 import java.net.URISyntaxException;
 import java.nio.file.Path;
 import java.nio.file.Paths;
-import java.util.ArrayList;
-import java.util.Collection;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
@@ -43,10 +39,10 @@ import org.onap.ccsdk.sli.core.sli.SvcLogicException;
 import org.onap.ccsdk.sli.plugins.restapicall.HttpMethod;
 import org.onap.ccsdk.sli.plugins.yangserializers.dfserializer.YangParameters;
 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
+import org.opendaylight.yangtools.yang.model.parser.api.YangParser;
+import org.opendaylight.yangtools.yang.model.parser.api.YangParserException;
+import org.opendaylight.yangtools.yang.model.parser.api.YangParserFactory;
 import org.opendaylight.yangtools.yang.model.parser.api.YangSyntaxErrorException;
-import org.opendaylight.yangtools.yang.parser.rfc7950.repo.YangStatementStreamSource;
-import org.opendaylight.yangtools.yang.parser.spi.meta.ReactorException;
-import org.opendaylight.yangtools.yang.parser.stmt.reactor.CrossSourceStatementReactor;
 
 /**
  * Utilities for restconf api call node.
@@ -188,27 +184,24 @@ public final class RestconfApiUtils {
      * @return YANG schema context
      * @throws SvcLogicException when YANG file reading fails
      */
-    static EffectiveModelContext getSchemaCtxFromDir(String di)
+    static EffectiveModelContext getSchemaCtxFromDir(YangParserFactory parserFactory, String di)
             throws SvcLogicException {
         Path d = Paths.get(di);
         File dir = d.toFile();
         List<File> yangFiles = new LinkedList<>();
         getYangFiles(dir, yangFiles);
-        final Collection<YangStatementStreamSource> sources =
-                new ArrayList<>(yangFiles.size());
+        YangParser parser = parserFactory.createParser();
         for (File file : yangFiles) {
             try {
-                sources.add(create(forFile(file)));
+                parser.addSource(forFile(file));
             } catch (IOException | YangSyntaxErrorException e) {
                 throw new SvcLogicException(YANG_FILE_ERR + e.getMessage(), e);
             }
         }
 
-        final CrossSourceStatementReactor.BuildAction reactor = defaultReactor()
-                .newBuild(DEFAULT_MODE).addSources(sources);
         try {
-            return reactor.buildEffective();
-        } catch (ReactorException e) {
+            return parser.buildEffectiveModel();
+        } catch (YangParserException e) {
             throw new SvcLogicException(YANG_FILE_ERR + e.getMessage(), e);
         }
     }
diff --git a/plugins/restconf-client/provider/src/main/resources/org/opendaylight/blueprint/restconf-client-blueprint.xml b/plugins/restconf-client/provider/src/main/resources/org/opendaylight/blueprint/restconf-client-blueprint.xml
index 45c335b13..efa8fce9d 100755
--- a/plugins/restconf-client/provider/src/main/resources/org/opendaylight/blueprint/restconf-client-blueprint.xml
+++ b/plugins/restconf-client/provider/src/main/resources/org/opendaylight/blueprint/restconf-client-blueprint.xml
@@ -28,8 +28,15 @@
                interface="org.onap.ccsdk.sli.plugins.restapicall.RestapiCallNode"
                ext:proxy-method="classes"/>
 
+    <reference xmlns:ext="http://aries.apache.org/blueprint/xmlns/blueprint-ext/v1.0.0"
+               id="yangParserFactory"
+               interface="org.opendaylight.yangtools.yang.model.parser.api.YangParserFactory"
+               ext:proxy-method="classes"/>
+           
+
     <bean id="restconfapiCallNodeProvider" class="org.onap.ccsdk.sli.plugins.restconfapicall.RestconfApiCallNode" >
         <argument ref="restapiCallNodeProvider"/>
+        <argument ref="yangParserFactory"/>
     </bean>
 
     <bean id="restconfDiscoveryNodeProvider" class="org.onap.ccsdk.sli.plugins.restconfdiscovery.RestconfDiscoveryNode" >