[ONOS-4350] Inter Jar dependency implementation and code restructuring.
Change-Id: Iacac75e4187aed93ce1754c170a9c19707e5b8c3
diff --git a/plugin/src/main/java/org/onosproject/yangutils/parser/impl/listeners/BitListener.java b/plugin/src/main/java/org/onosproject/yangutils/parser/impl/listeners/BitListener.java
new file mode 100644
index 0000000..39084e0
--- /dev/null
+++ b/plugin/src/main/java/org/onosproject/yangutils/parser/impl/listeners/BitListener.java
@@ -0,0 +1,175 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.yangutils.parser.impl.listeners;
+
+/*
+ * Reference: RFC6020 and YANG ANTLR Grammar
+ *
+ * ABNF grammar as per RFC6020
+ * bit-stmt = bit-keyword sep identifier-arg-str optsep
+ * (";" /
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * [position-stmt stmtsep]
+ * [status-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * "}"
+ * "}")
+ *
+ * ANTLR grammar rule
+ * bitStatement : BIT_KEYWORD identifier (STMTEND | LEFT_CURLY_BRACE bitBodyStatement RIGHT_CURLY_BRACE);
+ *
+ * bitBodyStatement : positionStatement? statusStatement? descriptionStatement? referenceStatement?
+ * | positionStatement? statusStatement? referenceStatement? descriptionStatement?
+ * | positionStatement? descriptionStatement? statusStatement? referenceStatement?
+ * | positionStatement? descriptionStatement? referenceStatement? statusStatement?
+ * | positionStatement? referenceStatement? statusStatement? descriptionStatement?
+ * | positionStatement? referenceStatement? descriptionStatement? statusStatement?
+ * | statusStatement? positionStatement? descriptionStatement? referenceStatement?
+ * | statusStatement? positionStatement? referenceStatement? descriptionStatement?
+ * | statusStatement? descriptionStatement? descriptionStatement? positionStatement?
+ * | statusStatement? descriptionStatement? positionStatement? descriptionStatement?
+ * | statusStatement? referenceStatement? positionStatement? descriptionStatement?
+ * | statusStatement? referenceStatement? descriptionStatement? positionStatement?
+ * | descriptionStatement? positionStatement? statusStatement? referenceStatement?
+ * | descriptionStatement? positionStatement? referenceStatement? statusStatement?
+ * | descriptionStatement? statusStatement? positionStatement? referenceStatement?
+ * | descriptionStatement? statusStatement? referenceStatement? positionStatement?
+ * | descriptionStatement? referenceStatement? positionStatement? statusStatement?
+ * | descriptionStatement? referenceStatement? statusStatement? positionStatement?
+ * | referenceStatement? positionStatement? descriptionStatement? statusStatement?
+ * | referenceStatement? positionStatement? statusStatement? descriptionStatement?
+ * | referenceStatement? statusStatement? descriptionStatement? positionStatement?
+ * | referenceStatement? statusStatement? positionStatement? descriptionStatement?
+ * | referenceStatement? descriptionStatement? positionStatement? statusStatement?
+ * | referenceStatement? descriptionStatement? statusStatement? positionStatement?
+ * ;
+ */
+
+import org.onosproject.yangutils.datamodel.YangBit;
+import org.onosproject.yangutils.datamodel.YangBits;
+import org.onosproject.yangutils.datamodel.exceptions.DataModelException;
+import org.onosproject.yangutils.datamodel.utils.Parsable;
+import org.onosproject.yangutils.parser.antlrgencode.GeneratedYangParser;
+import org.onosproject.yangutils.parser.exceptions.ParserException;
+import org.onosproject.yangutils.parser.impl.TreeWalkListener;
+
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerUtil.getValidIdentifier;
+import static org.onosproject.yangutils.datamodel.utils.YangConstructType.BIT_DATA;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorLocation.ENTRY;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorLocation.EXIT;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorMessageConstruction.constructExtendedListenerErrorMessage;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorMessageConstruction.constructListenerErrorMessage;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorType.INVALID_CONTENT;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorType.INVALID_HOLDER;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorType.MISSING_CURRENT_HOLDER;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorType.MISSING_HOLDER;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerValidation.checkStackIsNotEmpty;
+
+/**
+ * Represents listener based call back function corresponding to the "bit"
+ * rule defined in ANTLR grammar file for corresponding ABNF rule in RFC 6020.
+ */
+public final class BitListener {
+
+ /**
+ * Creates a new bit listener.
+ */
+ private BitListener() {
+ }
+
+ /**
+ * It is called when parser enters grammar rule (bit), it perform
+ * validations and updates the data model tree.
+ *
+ * @param listener listener's object
+ * @param ctx context object of the grammar rule
+ */
+ public static void processBitEntry(TreeWalkListener listener,
+ GeneratedYangParser.BitStatementContext ctx) {
+
+ // Check for stack to be non empty.
+ checkStackIsNotEmpty(listener, MISSING_HOLDER, BIT_DATA, ctx.identifier().getText(), ENTRY);
+
+ String identifier = getValidIdentifier(ctx.identifier().getText(), BIT_DATA, ctx);
+
+ YangBit bitNode = new YangBit();
+ bitNode.setBitName(identifier);
+ listener.getParsedDataStack().push(bitNode);
+ }
+
+ /**
+ * It is called when parser exits from grammar rule (bit), it perform
+ * validations and update the data model tree.
+ *
+ * @param listener Listener's object
+ * @param ctx context object of the grammar rule
+ */
+ public static void processBitExit(TreeWalkListener listener,
+ GeneratedYangParser.BitStatementContext ctx) {
+
+ // Check for stack to be non empty.
+ checkStackIsNotEmpty(listener, MISSING_HOLDER, BIT_DATA, ctx.identifier().getText(), EXIT);
+
+ Parsable tmpBitNode = listener.getParsedDataStack().peek();
+ if (tmpBitNode instanceof YangBit) {
+ listener.getParsedDataStack().pop();
+
+ // Check for stack to be non empty.
+ checkStackIsNotEmpty(listener, MISSING_HOLDER, BIT_DATA, ctx.identifier().getText(), EXIT);
+
+ Parsable tmpNode = listener.getParsedDataStack().peek();
+ switch (tmpNode.getYangConstructType()) {
+ case BITS_DATA: {
+ YangBits yangBits = (YangBits) tmpNode;
+ if (ctx.bitBodyStatement() == null || ctx.bitBodyStatement().positionStatement() == null) {
+ int maxPosition = 0;
+ boolean isPositionPresent = false;
+
+ for (YangBit curBit : yangBits.getBitSet()) {
+ if (maxPosition <= curBit.getPosition()) {
+ maxPosition = curBit.getPosition();
+ isPositionPresent = true;
+ }
+ }
+ if (isPositionPresent) {
+ maxPosition++;
+ }
+ ((YangBit) tmpBitNode).setPosition(maxPosition);
+ }
+ try {
+ yangBits.addBitInfo((YangBit) tmpBitNode);
+ } catch (DataModelException e) {
+ ParserException parserException = new ParserException(constructExtendedListenerErrorMessage(
+ INVALID_CONTENT, BIT_DATA, ctx.identifier().getText(), EXIT, e.getMessage()));
+ parserException.setLine(ctx.getStart().getLine());
+ parserException.setCharPosition(ctx.getStart().getCharPositionInLine());
+ throw parserException;
+ }
+ break;
+ }
+ default:
+ throw new ParserException(
+ constructListenerErrorMessage(INVALID_HOLDER, BIT_DATA, ctx.identifier().getText(), EXIT));
+ }
+ } else {
+ throw new ParserException(
+ constructListenerErrorMessage(MISSING_CURRENT_HOLDER, BIT_DATA, ctx.identifier().getText(), EXIT));
+ }
+ }
+}