commit b24ca90bcf88ed2c14467c1a19a813acc3c149b7
author Vidyashree Rama <vidyashree.rama@huawei.com> Sat Feb 13 21:47:58 2016 +0530
committer Gerrit Code Review <gerrit@onlab.us> Thu Feb 18 09:17:49 2016 +0000
tree b903099d5beacb16dc069cfa779db1477018c1a8
parent 2737d2a168e0e563e78e9285614ed55136f2e12a

[ONOS-3892,3895,3882,3883,3896]Implementation of yang container, list, leaf, leaf-list parser

Change-Id: Id51839bc434044be8273382f80f15b12f0ec8709

src/main/java/org/onosproject/yangutils/parser/impl/listeners/MandatoryListener.java

diff --git a/src/main/java/org/onosproject/yangutils/parser/impl/listeners/MandatoryListener.java b/src/main/java/org/onosproject/yangutils/parser/impl/listeners/MandatoryListener.java
index f062404..e0a3e6c 100644
--- a/src/main/java/org/onosproject/yangutils/parser/impl/listeners/MandatoryListener.java
+++ b/src/main/java/org/onosproject/yangutils/parser/impl/listeners/MandatoryListener.java
@@ -16,8 +16,16 @@
 
 package org.onosproject.yangutils.parser.impl.listeners;
 
+import org.onosproject.yangutils.datamodel.YangLeaf;
+import org.onosproject.yangutils.parser.Parsable;
+import org.onosproject.yangutils.parser.ParsableDataType;
 import org.onosproject.yangutils.parser.antlrgencode.GeneratedYangParser;
+import org.onosproject.yangutils.parser.exceptions.ParserException;
 import org.onosproject.yangutils.parser.impl.TreeWalkListener;
+import org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorLocation;
+import org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorMessageConstruction;
+import org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorType;
+import org.onosproject.yangutils.parser.impl.parserutils.ListenerValidation;
 
 /*
  * Reference: RFC6020 and YANG ANTLR Grammar
@@ -57,18 +65,27 @@
      */
     public static void processMandatoryEntry(TreeWalkListener listener,
                                           GeneratedYangParser.MandatoryStatementContext ctx) {
-        // TODO method implementation
-    }
 
-    /**
-     * It is called when parser exits from grammar rule (mandatory), it performs
-     * validation and updates the data model tree.
-     *
-     * @param listener listener's object.
-     * @param ctx context object of the grammar rule.
-     */
-    public static void processMandatoryExit(TreeWalkListener listener,
-                                         GeneratedYangParser.MandatoryStatementContext ctx) {
-        // TODO method implementation
+        // Check for stack to be non empty.
+        ListenerValidation.checkStackIsNotEmpty(listener, ListenerErrorType.MISSING_HOLDER,
+                ParsableDataType.MANDATORY_DATA, "", ListenerErrorLocation.ENTRY);
+
+        Parsable tmpNode = listener.getParsedDataStack().peek();
+        switch (tmpNode.getParsableDataType()) {
+            case LEAF_DATA:
+                YangLeaf leaf = (YangLeaf) tmpNode;
+                if (ctx.TRUE_KEYWORD() != null) {
+                    leaf.setMandatory(true);
+                } else {
+                    leaf.setMandatory(false);
+                }
+                break;
+            case CHOICE_DATA: // TODO
+                break;
+            default:
+                throw new ParserException(ListenerErrorMessageConstruction
+                        .constructListenerErrorMessage(ListenerErrorType.INVALID_HOLDER,
+                                ParsableDataType.MANDATORY_DATA, "", ListenerErrorLocation.ENTRY));
+        }
     }
 }
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