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authorToineSiebelink <toine.siebelink@est.tech>2021-05-20 16:44:21 +0100
committerToineSiebelink <toine.siebelink@est.tech>2021-06-01 10:12:55 +0100
commitc37678a3eb62685d32a1581729e2a4e26002bffc (patch)
tree1901f7e3517ae339f99905f7ffc0021553874842 /cps-ri/src/main
parent9de3b68373dd8554e64f34bb3093403521f8759f (diff)
Introducing Antlr4 for cpsPath parsing
-created new module for cpPathParser -added antlr rule for cpsPathWithSingleLeafCondition -added antlr rule for cpsPathWithDescendant (and with leaf conditions) -added antlr rule for ancestor axis -added unit test (copied from existing CpsPathQuerySpec) -udpated cps-ri to use new cpPathQuery from parser module -'imported' lexer rules from publix xPath grammar -Re-used existing CpsPathException but conversion happens in cps-ri to prevent additional dependency in cps-path-parser module Issue-ID: CPS-376 Change-Id: I2c5df98969402cbf69f6573c52705879450ce606 Signed-off-by: ToineSiebelink <toine.siebelink@est.tech>
Diffstat (limited to 'cps-ri/src/main')
-rw-r--r--cps-ri/src/main/java/org/onap/cps/spi/impl/CpsDataPersistenceServiceImpl.java14
-rw-r--r--cps-ri/src/main/java/org/onap/cps/spi/query/CpsPathQuery.java161
-rw-r--r--cps-ri/src/main/java/org/onap/cps/spi/query/CpsPathQueryType.java39
3 files changed, 10 insertions, 204 deletions
diff --git a/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsDataPersistenceServiceImpl.java b/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsDataPersistenceServiceImpl.java
index 10440924e9..af1eca33e6 100644
--- a/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsDataPersistenceServiceImpl.java
+++ b/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsDataPersistenceServiceImpl.java
@@ -36,16 +36,17 @@ import java.util.Set;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
import javax.transaction.Transactional;
+import org.onap.cps.cpspath.parser.CpsPathQuery;
+import org.onap.cps.cpspath.parser.CpsPathQueryType;
import org.onap.cps.spi.CpsDataPersistenceService;
import org.onap.cps.spi.FetchDescendantsOption;
import org.onap.cps.spi.entities.AnchorEntity;
import org.onap.cps.spi.entities.DataspaceEntity;
import org.onap.cps.spi.entities.FragmentEntity;
import org.onap.cps.spi.exceptions.AlreadyDefinedException;
+import org.onap.cps.spi.exceptions.CpsPathException;
import org.onap.cps.spi.model.DataNode;
import org.onap.cps.spi.model.DataNodeBuilder;
-import org.onap.cps.spi.query.CpsPathQuery;
-import org.onap.cps.spi.query.CpsPathQueryType;
import org.onap.cps.spi.repository.AnchorRepository;
import org.onap.cps.spi.repository.DataspaceRepository;
import org.onap.cps.spi.repository.FragmentRepository;
@@ -171,7 +172,12 @@ public class CpsDataPersistenceServiceImpl implements CpsDataPersistenceService
final FetchDescendantsOption fetchDescendantsOption) {
final var dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
final var anchorEntity = anchorRepository.getByDataspaceAndName(dataspaceEntity, anchorName);
- final var cpsPathQuery = CpsPathQuery.createFrom(cpsPath);
+ final CpsPathQuery cpsPathQuery;
+ try {
+ cpsPathQuery = CpsPathQuery.createFrom(cpsPath);
+ } catch (final IllegalStateException e) {
+ throw new CpsPathException(e.getMessage());
+ }
List<FragmentEntity> fragmentEntities;
if (CpsPathQueryType.XPATH_LEAF_VALUE.equals(cpsPathQuery.getCpsPathQueryType())) {
fragmentEntities = fragmentRepository
@@ -283,7 +289,7 @@ public class CpsDataPersistenceServiceImpl implements CpsDataPersistenceService
fragmentRepository.save(fragmentEntity);
}
- private boolean isRootXpath(final String xpath) {
+ private static boolean isRootXpath(final String xpath) {
return "/".equals(xpath) || "".equals(xpath);
}
}
diff --git a/cps-ri/src/main/java/org/onap/cps/spi/query/CpsPathQuery.java b/cps-ri/src/main/java/org/onap/cps/spi/query/CpsPathQuery.java
deleted file mode 100644
index 401667eaa4..0000000000
--- a/cps-ri/src/main/java/org/onap/cps/spi/query/CpsPathQuery.java
+++ /dev/null
@@ -1,161 +0,0 @@
-/*
- * ============LICENSE_START=======================================================
- * Copyright (C) 2021 Nordix Foundation
- * Modifications Copyright (C) 2021 Bell Canada.
- * ================================================================================
- * 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.spi.query;
-
-import static org.springframework.util.StringUtils.isEmpty;
-
-import java.util.HashMap;
-import java.util.Map;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-import lombok.AccessLevel;
-import lombok.Getter;
-import lombok.Setter;
-import org.onap.cps.spi.exceptions.CpsPathException;
-
-@Getter
-@Setter(AccessLevel.PRIVATE)
-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;
-
- private static final String NON_CAPTURING_GROUP_1_TO_99_YANG_CONTAINERS = "((?:\\/[^\\/]+){1,99})";
-
- private static final String YANG_LEAF_VALUE_EQUALS_CONDITION =
- "\\[\\s{0,9}@(\\S+?)\\s{0,9}=\\s{0,9}(.*?)\\s{0,9}\\]";
-
- private static final Pattern QUERY_CPS_PATH_WITH_SINGLE_LEAF_PATTERN =
- Pattern.compile(NON_CAPTURING_GROUP_1_TO_99_YANG_CONTAINERS + YANG_LEAF_VALUE_EQUALS_CONDITION);
-
- private static final Pattern DESCENDANT_ANYWHERE_PATTERN = Pattern.compile("\\/\\/([^\\/][^:]+)");
-
- private static final Pattern LEAF_INTEGER_VALUE_PATTERN = Pattern.compile("[-+]?\\d+");
-
- private static final Pattern LEAF_STRING_VALUE_IN_SINGLE_QUOTES_PATTERN = Pattern.compile("'(.*)'");
- private static final Pattern LEAF_STRING_VALUE_IN_DOUBLE_QUOTES_PATTERN = Pattern.compile("\"(.*)\"");
-
- private static final String YANG_MULTIPLE_LEAF_VALUE_EQUALS_CONDITION = "\\[(.*?)\\s{0,9}]";
-
- private static final Pattern DESCENDANT_ANYWHERE_PATTERN_WITH_MULTIPLE_LEAF_PATTERN =
- Pattern.compile(DESCENDANT_ANYWHERE_PATTERN + YANG_MULTIPLE_LEAF_VALUE_EQUALS_CONDITION);
-
- private static final String INDIVIDUAL_LEAF_DETAIL_PATTERN = ("\\s{1,9}and\\s{1,9}");
-
- private static final Pattern LEAF_VALUE_PATTERN = Pattern.compile("@(?>(\\S+?)=(.*))");
-
- private static final Pattern ANCESTOR_AXIS_PATTERN = Pattern.compile("(?>(\\S+)\\/ancestor::\\/?(\\S+))");
-
- /**
- * Returns a cps path query.
- *
- * @param cpsPathSource cps path
- * @return a CpsPath object.
- */
- public static CpsPathQuery createFrom(final String cpsPathSource) {
- var cpsPath = cpsPathSource;
- final var cpsPathQuery = new CpsPathQuery();
- var matcher = ANCESTOR_AXIS_PATTERN.matcher(cpsPath);
- if (matcher.matches()) {
- cpsPath = matcher.group(1);
- cpsPathQuery.setAncestorSchemaNodeIdentifier(matcher.group(2));
- }
- matcher = QUERY_CPS_PATH_WITH_SINGLE_LEAF_PATTERN.matcher(cpsPath);
- if (matcher.matches()) {
- cpsPathQuery.setParametersForSingleLeafValue(cpsPath, matcher);
- return cpsPathQuery;
- }
- matcher = DESCENDANT_ANYWHERE_PATTERN_WITH_MULTIPLE_LEAF_PATTERN.matcher(cpsPath);
- if (matcher.matches()) {
- cpsPathQuery.setParametersForDescendantWithLeafValues(cpsPath, matcher);
- return cpsPathQuery;
- }
- matcher = DESCENDANT_ANYWHERE_PATTERN.matcher(cpsPath);
- if (matcher.matches()) {
- cpsPathQuery.setParametersForDescendantAnywhere(matcher);
- return cpsPathQuery;
- }
- throw new CpsPathException("Invalid cps path.",
- String.format("Cannot interpret or parse cps path '%s'.", cpsPath));
- }
-
- /**
- * Has ancestor axis been populated.
- *
- * @return boolean value.
- */
- public boolean hasAncestorAxis() {
- return !(isEmpty(ancestorSchemaNodeIdentifier));
- }
-
- private void setParametersForSingleLeafValue(final String cpsPath, final Matcher matcher) {
- setCpsPathQueryType(CpsPathQueryType.XPATH_LEAF_VALUE);
- setXpathPrefix(matcher.group(1));
- setLeafName(matcher.group(2));
- setLeafValue(convertLeafValueToCorrectType(matcher.group(3), cpsPath));
- }
-
- private void setParametersForDescendantWithLeafValues(final String cpsPath, final Matcher matcher) {
- setCpsPathQueryType(CpsPathQueryType.XPATH_HAS_DESCENDANT_WITH_LEAF_VALUES);
- setDescendantName(matcher.group(1));
- final Map<String, Object> leafData = new HashMap<>();
- for (final String leafValuePair : matcher.group(2).split(INDIVIDUAL_LEAF_DETAIL_PATTERN)) {
- final var descendentMatcher = LEAF_VALUE_PATTERN.matcher(leafValuePair);
- if (descendentMatcher.matches()) {
- leafData.put(descendentMatcher.group(1),
- convertLeafValueToCorrectType(descendentMatcher.group(2), cpsPath));
- } else {
- throw new CpsPathException("Invalid cps path.",
- String.format("Cannot interpret or parse attributes in cps path '%s'.", cpsPath));
- }
- }
- setLeavesData(leafData);
- }
-
- private void setParametersForDescendantAnywhere(final Matcher matcher) {
- setCpsPathQueryType(CpsPathQueryType.XPATH_HAS_DESCENDANT_ANYWHERE);
- setDescendantName(matcher.group(1));
- }
-
- private static Object convertLeafValueToCorrectType(final String leafValueString, final String cpsPath) {
- final var stringValueWithSingleQuotesMatcher =
- LEAF_STRING_VALUE_IN_SINGLE_QUOTES_PATTERN.matcher(leafValueString);
- if (stringValueWithSingleQuotesMatcher.matches()) {
- return stringValueWithSingleQuotesMatcher.group(1);
- }
- final var stringValueWithDoubleQuotesMatcher =
- LEAF_STRING_VALUE_IN_DOUBLE_QUOTES_PATTERN.matcher(leafValueString);
- if (stringValueWithDoubleQuotesMatcher.matches()) {
- return stringValueWithDoubleQuotesMatcher.group(1);
- }
- final var integerValueMatcher = LEAF_INTEGER_VALUE_PATTERN.matcher(leafValueString);
- if (integerValueMatcher.matches()) {
- return Integer.valueOf(leafValueString);
- }
- throw new CpsPathException("Unsupported leaf value.",
- String.format("Unsupported leaf value '%s' in cps path '%s'.", leafValueString, cpsPath));
- }
-}
diff --git a/cps-ri/src/main/java/org/onap/cps/spi/query/CpsPathQueryType.java b/cps-ri/src/main/java/org/onap/cps/spi/query/CpsPathQueryType.java
deleted file mode 100644
index 3ae54ba22a..0000000000
--- a/cps-ri/src/main/java/org/onap/cps/spi/query/CpsPathQueryType.java
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * ============LICENSE_START=======================================================
- * Copyright (C) 2021 Nordix Foundation
- * Modifications Copyright (C) 2020-2021 Bell Canada.
- * ================================================================================
- * 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.spi.query;
-
-/**
- * The enum Cps path query type.
- */
-public enum CpsPathQueryType {
- /**
- * Xpath descendant anywhere type e.g. //nodeName .
- */
- XPATH_HAS_DESCENDANT_ANYWHERE,
- /**
- * Xpath descendant anywhere type e.g. //nodeName[@leafName=leafValue] .
- */
- XPATH_HAS_DESCENDANT_WITH_LEAF_VALUES,
- /**
- * Xpath leaf value cps path query type e.g. /cps-path[@leafName=leafValue] .
- */
- XPATH_LEAF_VALUE
-}