2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2021 Nordix Foundation
4 * ================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 * SPDX-License-Identifier: Apache-2.0
18 * ============LICENSE_END=========================================================
21 package org.onap.cps.cpspath.parser;
23 import java.util.HashMap;
25 import org.onap.cps.cpspath.parser.antlr4.CpsPathBaseListener;
26 import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.AncestorAxisContext;
27 import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.CpsPathWithDescendantAndLeafConditionsContext;
28 import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.CpsPathWithDescendantContext;
29 import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.CpsPathWithSingleLeafConditionContext;
30 import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.LeafConditionContext;
31 import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.MultipleValueConditionsContext;
32 import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.PostfixContext;
33 import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.PrefixContext;
34 import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.SingleValueConditionContext;
36 public class CpsPathBuilder extends CpsPathBaseListener {
38 final CpsPathQuery cpsPathQuery = new CpsPathQuery();
40 final Map<String, Object> leavesData = new HashMap<>();
43 public void exitPrefix(final PrefixContext ctx) {
44 cpsPathQuery.setXpathPrefix(ctx.getText());
48 public void exitPostfix(final PostfixContext ctx) {
49 throw new IllegalStateException(String.format("Unsupported postfix %s encountered in CpsPath.", ctx.getText()));
53 public void exitLeafCondition(final LeafConditionContext ctx) {
54 Object comparisonValue = null;
55 if (ctx.IntegerLiteral() != null) {
56 comparisonValue = Integer.valueOf(ctx.IntegerLiteral().getText());
58 if (ctx.StringLiteral() != null) {
59 comparisonValue = stripFirstAndLastCharacter(ctx.StringLiteral().getText());
60 } else if (comparisonValue == null) {
61 throw new IllegalStateException("Unsupported comparison value encountered in expression" + ctx.getText());
63 leavesData.put(ctx.leafName().getText(), comparisonValue);
67 public void enterSingleValueCondition(final SingleValueConditionContext ctx) {
72 public void enterMultipleValueConditions(final MultipleValueConditionsContext ctx) {
77 public void exitSingleValueCondition(final SingleValueConditionContext ctx) {
78 final String leafName = ctx.leafCondition().leafName().getText();
79 cpsPathQuery.setLeafName(leafName);
80 cpsPathQuery.setLeafValue(leavesData.get(leafName));
84 public void exitCpsPathWithSingleLeafCondition(final CpsPathWithSingleLeafConditionContext ctx) {
85 cpsPathQuery.setCpsPathQueryType(CpsPathQueryType.XPATH_LEAF_VALUE);
89 public void exitCpsPathWithDescendant(final CpsPathWithDescendantContext ctx) {
90 cpsPathQuery.setCpsPathQueryType(CpsPathQueryType.XPATH_HAS_DESCENDANT_ANYWHERE);
91 cpsPathQuery.setDescendantName(cpsPathQuery.getXpathPrefix().substring(1));
95 public void exitCpsPathWithDescendantAndLeafConditions(
96 final CpsPathWithDescendantAndLeafConditionsContext ctx) {
97 cpsPathQuery.setCpsPathQueryType(CpsPathQueryType.XPATH_HAS_DESCENDANT_WITH_LEAF_VALUES);
98 cpsPathQuery.setDescendantName(cpsPathQuery.getXpathPrefix().substring(1));
99 cpsPathQuery.setLeavesData(leavesData);
103 public void exitAncestorAxis(final AncestorAxisContext ctx) {
104 cpsPathQuery.setAncestorSchemaNodeIdentifier(ctx.ancestorPath().getText());
107 CpsPathQuery build() {
111 private static String stripFirstAndLastCharacter(final String wrappedString) {
112 return wrappedString.substring(1, wrappedString.length() - 1);