Replace models.cfg with json

dynawaltz-dsl/pom.xml

@@ -51,6 +51,10 @@
             <groupId>com.powsybl</groupId>
             <artifactId>powsybl-dynawaltz</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.apache.groovy</groupId>
+            <artifactId>groovy-json</artifactId>
+        </dependency>
 
         <!-- Test dependencies -->
         <dependency>

dynawaltz-dsl/src/main/groovy/com/powsybl/dynawaltz/dsl/AbstractEquipmentGroovyExtension.groovy

@@ -11,15 +11,12 @@ import com.powsybl.dynawaltz.DynaWaltzProvider
 import com.powsybl.iidm.network.Network
 
 import java.util.function.Consumer
-
 /**
  * @author Laurent Issertial <laurent.issertial at rte-france.com>
  */
 abstract class AbstractEquipmentGroovyExtension<T> {
 
-    protected static final String MODELS_CONFIG = "models.cfg"
-    protected static final String MODEL_PREFIX = "prefix"
-    protected static final String MODEL_PROPERTIES = "properties"
+    protected static final String MODELS_CONFIG = "models.json"
 
     protected final List<EquipmentConfig> equipmentConfigs
 
@@ -28,14 +25,7 @@ abstract class AbstractEquipmentGroovyExtension<T> {
     }
 
     protected AbstractEquipmentGroovyExtension(String modelTag, URL modelConfigUrl) {
-        ConfigSlurper config = new ConfigSlurper()
-        equipmentConfigs = config.parse(modelConfigUrl).get(modelTag).collect {
-            new EquipmentConfig(
-                    it.key as String,
-                    it.value.get(MODEL_PREFIX) as String,
-                    it.value.get(MODEL_PROPERTIES).collect{it.toUpperCase()} as String[]
-            )
-        }
+        equipmentConfigs = ModelsSlurper.instance.getEquipmentConfigs(modelConfigUrl, modelTag)
     }
 
     abstract protected ModelBuilder<T> createBuilder(Network network, EquipmentConfig equipmentConfig);

dynawaltz-dsl/src/main/groovy/com/powsybl/dynawaltz/dsl/EquipmentConfig.groovy

@@ -14,7 +14,7 @@ class EquipmentConfig {
     EquipmentConfig(String lib, String prefix, String... properties) {
         this.lib = lib
         this.prefix = prefix
-        this.properties = properties
+        this.properties = properties ? properties.collect{it.toUpperCase()} as List<String> : [] as List<String>
     }
 
     boolean isControllable() {

dynawaltz-dsl/src/main/groovy/com/powsybl/dynawaltz/dsl/ModelsSlurper.groovy

@@ -0,0 +1,34 @@
+/**
+ * Copyright (c) 2023, RTE (http://www.rte-france.com/)
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ * SPDX-License-Identifier: MPL-2.0
+ */
+package com.powsybl.dynawaltz.dsl
+
+import groovy.json.JsonSlurper
+import org.apache.groovy.json.internal.LazyMap
+
+/**
+ * @author Laurent Issertial <laurent.issertial at rte-france.com>
+ */
+@Singleton
+class ModelsSlurper {
+
+    private static final String MODEL_LIB = "lib"
+    private static final String MODEL_PREFIX = "prefix"
+    private static final String MODEL_PROPERTIES = "properties"
+
+    private final slurper = new JsonSlurper()
+    private final Map<URL, LazyMap> libsList = new HashMap<>()
+
+    def getEquipmentConfigs(URL url, String modelTag) {
+        libsList.computeIfAbsent(url, u -> slurper.parse(u))[modelTag].collect() {
+            new EquipmentConfig(
+                    it[MODEL_LIB] as String,
+                    it[MODEL_PREFIX] as String,
+                    it[MODEL_PROPERTIES] as String[])
+        }
+    }
+}