1 files changed, 76 insertions, 0 deletions
diff --git a/src/main/java/org/onap/pnfsimulator/simulator/keywords/Keyword.java b/src/main/java/org/onap/pnfsimulator/simulator/keywords/Keyword.java
new file mode 100644
index 0000000..1bb1332
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+++ b/src/main/java/org/onap/pnfsimulator/simulator/keywords/Keyword.java
@@ -0,0 +1,76 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PNF-REGISTRATION-HANDLER
+ * ================================================================================
+ * Copyright (C) 2018 Nokia. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.pnfsimulator.simulator.keywords;
+
+import io.vavr.Function1;
+import io.vavr.Function2;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.regex.Matcher;
+import java.util.stream.Collectors;
+
+import lombok.Getter;
+
+@Getter
+public class Keyword {
+
+    protected static final String LETTERS_REGEX = "([a-zA-Z]+)";
+    protected static final String NONLETTERS_REGEX = "([^a-zA-Z]+)";
+
+    protected static final Function1<String, String> OPTIONAL =
+        regex -> regex + "?";
+
+    private final String name;
+    private final List<String> meaningfulParts;
+
+    public static final Function2<Keyword, String, Boolean> IS_MATCHING_KEYWORD_NAME = (keyword, key) ->
+        keyword != null && keyword.getName() != null && keyword.getName().equals(key);
+
+    /**
+     * Returns list of independent parts inside the keyword. Current implementation assumes that customer can join keywords with integer values, so
+     * keyword is decomposed to parts then some parts of the keyword is skipped because of replacement process.
+     *
+     * @param matcher    - Matcher to check find independent groups inside the keyword
+     * @param skipGroups Informs this method about which groups should be consider as part of the replacement process
+     * @return list of independent parts inside the keywords
+     */
+    static List<String> extractPartsFrom(Matcher matcher, List<Integer> skipGroups) {
+        List<String> parts = new ArrayList<>();
+        for (int i = 1; i <= matcher.groupCount(); i++) {
+            if (matcher.group(i) != null && !skipGroups.contains(i)) {
+                parts.add(matcher.group(i));
+            }
+        }
+        return parts;
+    }
+
+    Keyword(String name, List<String> meaningfulParts) {
+        this.name = name;
+        this.meaningfulParts = meaningfulParts;
+    }
+
+    public String substituteKeyword(String substitution) {
+        return meaningfulParts.stream()
+            .map(part -> part.equals(name) ? substitution : part)
+            .collect(Collectors.joining());
+    }
+
+}