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
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 * SPDX-License-Identifier: Apache-2.0
17 * ============LICENSE_END=========================================================
20 package org.onap.cps.cpspath.parser;
22 import java.util.HashMap;
24 import org.onap.cps.cpspath.parser.antlr4.CpsPathBaseListener;
25 import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.AncestorAxisContext;
26 import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.CpsPathWithDescendantAndLeafConditionsContext;
27 import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.CpsPathWithDescendantContext;
28 import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.CpsPathWithSingleLeafConditionContext;
29 import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.LeafConditionContext;
30 import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.MultipleValueConditionsContext;
31 import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.PostfixContext;
32 import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.PrefixContext;
33 import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.SingleValueConditionContext;
35 public class CpsPathBuilder extends CpsPathBaseListener {
37 final CpsPathQuery cpsPathQuery = new CpsPathQuery();
39 final Map<String, Object> leavesData = new HashMap<>();
42 public void exitPrefix(final PrefixContext ctx) {
43 cpsPathQuery.setXpathPrefix(ctx.getText());
47 public void exitPostfix(final PostfixContext ctx) {
48 throw new IllegalStateException(String.format("Unsupported postfix %s encountered in CpsPath.", ctx.getText()));
52 public void exitLeafCondition(final LeafConditionContext ctx) {
53 Object comparisonValue = null;
54 if (ctx.IntegerLiteral() != null) {
55 comparisonValue = Integer.valueOf(ctx.IntegerLiteral().getText());
57 if (ctx.StringLiteral() != null) {
58 comparisonValue = stripFirstAndLastCharacter(ctx.StringLiteral().getText());
59 } else if (comparisonValue == null) {
60 throw new IllegalStateException("Unsupported comparison value encountered in expression" + ctx.getText());
62 leavesData.put(ctx.leafName().getText(), comparisonValue);
66 public void enterSingleValueCondition(final SingleValueConditionContext ctx) {
71 public void enterMultipleValueConditions(final MultipleValueConditionsContext ctx) {
76 public void exitSingleValueCondition(final SingleValueConditionContext ctx) {
77 final String leafName = ctx.leafCondition().leafName().getText();
78 cpsPathQuery.setLeafName(leafName);
79 cpsPathQuery.setLeafValue(leavesData.get(leafName));
83 public void exitCpsPathWithSingleLeafCondition(final CpsPathWithSingleLeafConditionContext ctx) {
84 cpsPathQuery.setCpsPathQueryType(CpsPathQueryType.XPATH_LEAF_VALUE);
88 public void exitCpsPathWithDescendant(final CpsPathWithDescendantContext ctx) {
89 cpsPathQuery.setCpsPathQueryType(CpsPathQueryType.XPATH_HAS_DESCENDANT_ANYWHERE);
90 cpsPathQuery.setDescendantName(cpsPathQuery.getXpathPrefix().substring(1));
94 public void exitCpsPathWithDescendantAndLeafConditions(
95 final CpsPathWithDescendantAndLeafConditionsContext ctx) {
96 cpsPathQuery.setCpsPathQueryType(CpsPathQueryType.XPATH_HAS_DESCENDANT_WITH_LEAF_VALUES);
97 cpsPathQuery.setDescendantName(cpsPathQuery.getXpathPrefix().substring(1));
98 cpsPathQuery.setLeavesData(leavesData);
102 public void exitAncestorAxis(final AncestorAxisContext ctx) {
103 cpsPathQuery.setAncestorSchemaNodeIdentifier(ctx.ancestorPath().getText());
106 CpsPathQuery build() {
110 private static String stripFirstAndLastCharacter(final String wrappedString) {
111 return wrappedString.substring(1, wrappedString.length() - 1);