diff options
Diffstat (limited to 'cps-path-parser/src/main/java/org/onap/cps/cpspath/parser/CpsPathQuery.java')
-rw-r--r-- | cps-path-parser/src/main/java/org/onap/cps/cpspath/parser/CpsPathQuery.java | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/cps-path-parser/src/main/java/org/onap/cps/cpspath/parser/CpsPathQuery.java b/cps-path-parser/src/main/java/org/onap/cps/cpspath/parser/CpsPathQuery.java new file mode 100644 index 0000000000..32fe0cbb74 --- /dev/null +++ b/cps-path-parser/src/main/java/org/onap/cps/cpspath/parser/CpsPathQuery.java @@ -0,0 +1,79 @@ +/* + * ============LICENSE_START======================================================= + * Copyright (C) 2021 Nordix Foundation + * ================================================================================ + * 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. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.cps.cpspath.parser; + + +import java.util.Map; +import lombok.AccessLevel; +import lombok.Getter; +import lombok.Setter; +import org.antlr.v4.runtime.BaseErrorListener; +import org.antlr.v4.runtime.CharStreams; +import org.antlr.v4.runtime.CommonTokenStream; +import org.antlr.v4.runtime.RecognitionException; +import org.antlr.v4.runtime.Recognizer; +import org.onap.cps.cpspath.parser.antlr4.CpsPathLexer; +import org.onap.cps.cpspath.parser.antlr4.CpsPathParser; + +@Getter +@Setter(AccessLevel.PACKAGE) +public class CpsPathQuery { + + private CpsPathQueryType cpsPathQueryType; + private String xpathPrefix; + private String leafName; + private Object leafValue; + private String descendantName; + private Map<String, Object> leavesData; + private String ancestorSchemaNodeIdentifier = ""; + + /** + * Returns a cps path query. + * + * @param cpsPathSource cps path + * @return a CpsPathQuery object. + */ + public static CpsPathQuery createFrom(final String cpsPathSource) { + final var inputStream = CharStreams.fromString(cpsPathSource); + final var cpsPathLexer = new CpsPathLexer(inputStream); + final var cpsPathParser = new CpsPathParser(new CommonTokenStream(cpsPathLexer)); + cpsPathParser.addErrorListener(new BaseErrorListener() { + @Override + public void syntaxError(final Recognizer<?, ?> recognizer, final Object offendingSymbol, final int line, + final int charPositionInLine, final String msg, final RecognitionException e) { + throw new IllegalStateException("failed to parse at line " + line + " due to " + msg, e); + } + }); + final var cpsPathBuilder = new CpsPathBuilder(); + cpsPathParser.addParseListener(cpsPathBuilder); + cpsPathParser.cpsPath(); + return cpsPathBuilder.build(); + } + + /** + * Has ancestor axis been populated. + * + * @return boolean value. + */ + public boolean hasAncestorAxis() { + return !(ancestorSchemaNodeIdentifier.isEmpty()); + } + +} |