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;
24 import lombok.AccessLevel;
27 import org.antlr.v4.runtime.BaseErrorListener;
28 import org.antlr.v4.runtime.CharStreams;
29 import org.antlr.v4.runtime.CommonTokenStream;
30 import org.antlr.v4.runtime.RecognitionException;
31 import org.antlr.v4.runtime.Recognizer;
32 import org.onap.cps.cpspath.parser.antlr4.CpsPathLexer;
33 import org.onap.cps.cpspath.parser.antlr4.CpsPathParser;
36 @Setter(AccessLevel.PACKAGE)
37 public class CpsPathQuery {
39 private CpsPathQueryType cpsPathQueryType;
40 private String xpathPrefix;
41 private String leafName;
42 private Object leafValue;
43 private String descendantName;
44 private Map<String, Object> leavesData;
45 private String ancestorSchemaNodeIdentifier = "";
48 * Returns a cps path query.
50 * @param cpsPathSource cps path
51 * @return a CpsPathQuery object.
53 public static CpsPathQuery createFrom(final String cpsPathSource) {
54 final var inputStream = CharStreams.fromString(cpsPathSource);
55 final var cpsPathLexer = new CpsPathLexer(inputStream);
56 final var cpsPathParser = new CpsPathParser(new CommonTokenStream(cpsPathLexer));
57 cpsPathParser.addErrorListener(new BaseErrorListener() {
59 public void syntaxError(final Recognizer<?, ?> recognizer, final Object offendingSymbol, final int line,
60 final int charPositionInLine, final String msg, final RecognitionException e) {
61 throw new IllegalStateException("failed to parse at line " + line + " due to " + msg, e);
64 final var cpsPathBuilder = new CpsPathBuilder();
65 cpsPathParser.addParseListener(cpsPathBuilder);
66 cpsPathParser.cpsPath();
67 return cpsPathBuilder.build();
71 * Has ancestor axis been populated.
73 * @return boolean value.
75 public boolean hasAncestorAxis() {
76 return !(ancestorSchemaNodeIdentifier.isEmpty());