/*
* ============LICENSE_START=======================================================
* Copyright (C) 2021 Nordix Foundation
- * Modifications Copyright (C) 2021 Bell Canada. All rights reserved.
+ * 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.
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;
private String xpathPrefix;
private String leafName;
private Object leafValue;
- private String endsWith;
+ 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("\"(.*)\"");
- public static final Pattern QUERY_CPS_PATH_WITH_SINGLE_LEAF_PATTERN =
- Pattern.compile("((?:\\/[^\\/]+)+?)\\[\\s*@(\\S+?)\\s*=\\s*(.*?)\\s*\\]");
+ private static final String YANG_MULTIPLE_LEAF_VALUE_EQUALS_CONDITION = "\\[(.*?)\\s{0,9}]";
- public static final Pattern QUERY_CPS_PATH_ENDS_WITH_PATTERN = Pattern.compile("\\/\\/(.+)");
+ private static final Pattern DESCENDANT_ANYWHERE_PATTERN_WITH_MULTIPLE_LEAF_PATTERN =
+ Pattern.compile(DESCENDANT_ANYWHERE_PATTERN + YANG_MULTIPLE_LEAF_VALUE_EQUALS_CONDITION);
- public static final Pattern LEAF_INTEGER_VALUE_PATTERN = Pattern.compile("[-+]?\\d+");
+ private static final String INDIVIDUAL_LEAF_DETAIL_PATTERN = ("\\s{1,9}and\\s{1,9}");
- public static final Pattern LEAF_STRING_VALUE_PATTERN = Pattern.compile("['\"](.*)['\"]");
+ 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 cpsPath cps path
+ * @param cpsPathSource cps path
* @return a CpsPath object.
*/
- public static CpsPathQuery createFrom(final String cpsPath) {
- Matcher matcher = QUERY_CPS_PATH_WITH_SINGLE_LEAF_PATTERN.matcher(cpsPath);
- final CpsPathQuery cpsPathQuery = new CpsPathQuery();
+ 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.setCpsPathQueryType(CpsPathQueryType.XPATH_LEAF_VALUE);
- cpsPathQuery.setXpathPrefix(matcher.group(1));
- cpsPathQuery.setLeafName(matcher.group(2));
- cpsPathQuery.setLeafValue(convertLeafValueToCorrectType(matcher.group(3), cpsPath));
+ cpsPathQuery.setParametersForDescendantWithLeafValues(cpsPath, matcher);
return cpsPathQuery;
}
- matcher = QUERY_CPS_PATH_ENDS_WITH_PATTERN.matcher(cpsPath);
+ matcher = DESCENDANT_ANYWHERE_PATTERN.matcher(cpsPath);
if (matcher.matches()) {
- cpsPathQuery.setCpsPathQueryType(CpsPathQueryType.XPATH_ENDS_WITH);
- cpsPathQuery.setEndsWith(matcher.group(1));
+ 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 Matcher stringValueWithQuotesMatcher = LEAF_STRING_VALUE_PATTERN.matcher(leafValueString);
- if (stringValueWithQuotesMatcher.matches()) {
- return stringValueWithQuotesMatcher.group(1);
+ 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 Matcher integerValueMatcher = LEAF_INTEGER_VALUE_PATTERN.matcher(leafValueString);
+ final var integerValueMatcher = LEAF_INTEGER_VALUE_PATTERN.matcher(leafValueString);
if (integerValueMatcher.matches()) {
return Integer.valueOf(leafValueString);
}