CockpitNG: Added code completion for AdvancedSearch operator parameter

CHANGELOG.md

@@ -1,5 +1,8 @@
 ## [2023.2.6]
 
+### `CockpitNG` enhancements
+- Added code completion for AdvancedSearch `operator` parameter [#537](https://github.com/epam/sap-commerce-intellij-idea-plugin/pull/537)
+
 ### Features
 - Added possibility to import Gradle KTS projects as modules [#534](https://github.com/epam/sap-commerce-intellij-idea-plugin/pull/534) 
 

src/com/intellij/idea/plugin/hybris/system/cockpitng/model/advancedSearch/Field.java

@@ -22,11 +22,9 @@
 package com.intellij.idea.plugin.hybris.system.cockpitng.model.advancedSearch;
 
 import com.intellij.idea.plugin.hybris.common.HybrisConstants;
-import com.intellij.util.xml.DomElement;
-import com.intellij.util.xml.GenericAttributeValue;
-import com.intellij.util.xml.Namespace;
-import com.intellij.util.xml.Required;
-import com.intellij.util.xml.SubTagList;
+import com.intellij.idea.plugin.hybris.system.cockpitng.util.xml.CngMergeByConverter;
+import com.intellij.idea.plugin.hybris.system.cockpitng.util.xml.CngOperatorConverter;
+import com.intellij.util.xml.*;
 import com.intellij.idea.plugin.hybris.system.cockpitng.model.config.hybris.MergeMode;
 import com.intellij.idea.plugin.hybris.system.cockpitng.model.config.hybris.Positioned;
 import org.jetbrains.annotations.NotNull;
@@ -55,6 +53,7 @@ public interface Field extends DomElement, Positioned {
 	 */
 	@NotNull
 	@com.intellij.util.xml.Attribute ("operator")
+	@Convert(CngOperatorConverter.class)
 	GenericAttributeValue<String> getOperator();
 
 

src/com/intellij/idea/plugin/hybris/system/cockpitng/util/CngUtils.kt

@@ -27,11 +27,36 @@ import com.intellij.util.xml.DomManager
 
 object CngUtils {
 
+    private val operatorValues = setOf(
+        "equals",
+        "unequal",
+        "startsWith",
+        "endsWith",
+        "contains",
+        "doesNotContain",
+        "like",
+        "greater",
+        "greaterOrEquals",
+        "less",
+        "lessOrEquals",
+        "in",
+        "notIn",
+        "exists",
+        "notExists",
+        "isEmpty",
+        "isNotEmpty",
+        "or",
+        "and",
+        "match",
+    )
+
     fun isConfigFile(file: XmlFile) = DomManager.getDomManager(file.project).getFileElement(file, Config::class.java) != null
 
     fun getValidMergeByValues(project: Project) = CngMetaModelAccess.getInstance(project).getMetaModel()
         .contextAttributes
         .keys
         // exclude itself
         .filter { Context.MERGE_BY != it }
+
+    fun getOperatorValues() = operatorValues
 }

src/com/intellij/idea/plugin/hybris/system/cockpitng/util/xml/CngOperatorConverter.kt

@@ -0,0 +1,32 @@
+/*
+ * This file is part of "SAP Commerce Developers Toolset" plugin for Intellij IDEA.
+ * Copyright (C) 2019 EPAM Systems <[email protected]>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.intellij.idea.plugin.hybris.system.cockpitng.util.xml
+
+import com.intellij.idea.plugin.hybris.system.cockpitng.util.CngUtils
+import com.intellij.util.xml.ConvertContext
+import com.intellij.util.xml.ResolvingConverter
+
+class CngOperatorConverter : ResolvingConverter<String>() {
+
+    override fun toString(t: String?, context: ConvertContext?) = t
+
+    override fun fromString(s: String?, context: ConvertContext?) = s
+
+    override fun getVariants(context: ConvertContext) = CngUtils.getOperatorValues()
+}