Add SensitivityAnalysisParameters container

src/main/SensitivityAnalysisParametersContainer.kt

@@ -0,0 +1,30 @@
+package com.github.statnett.loadflowservice
+
+import io.github.oshai.kotlinlogging.KotlinLogging
+
+
+import com.powsybl.sensitivity.SensitivityAnalysisParameters
+import com.powsybl.sensitivity.json.JsonSensitivityAnalysisParameters
+import io.ktor.http.content.*
+
+private val logger = KotlinLogging.logger {}
+class SensitivityAnalysisParametersContainer: AutoVersionableJsonParser(), FormItemLoadable {
+    var parameters = SensitivityAnalysisParameters()
+
+    override fun currentVersion(): String {
+        return SensitivityAnalysisParameters.VERSION
+    }
+
+    fun update(jsonString: String) {
+        val withVersion = jsonStringWithVersion(jsonString)
+        this.parameters = JsonSensitivityAnalysisParameters.update(this.parameters, withVersion.byteInputStream())
+    }
+
+    override fun formItemHandler(part: PartData.FormItem) {
+        val name = part.name ?: ""
+        if (name == "sensitivity-analysis-parameters") {
+            this.update(part.value)
+            logger.info { "Received load flow parameters: ${part.value}" }
+        }
+    }
+}

src/test/SensitivityAnalysisParametersContainerTest.kt

@@ -0,0 +1,19 @@
+import com.github.statnett.loadflowservice.ContingencyListContainer
+import com.github.statnett.loadflowservice.SensitivityAnalysisParametersContainer
+import com.powsybl.ieeecdf.converter.IeeeCdfNetworkFactory
+import kotlin.math.abs
+import kotlin.test.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertNotNull
+import kotlin.test.assertTrue
+
+class SensitivityAnalysisParametersContainerTest {
+    @Test
+    fun `load basic json`() {
+        val jsonString = "{\"voltage-voltage-sensitivity-value-threshold\": 1234.0}"
+        val container = SensitivityAnalysisParametersContainer()
+        container.update(jsonString)
+
+        assertTrue(abs(container.parameters.voltageVoltageSensitivityValueThreshold - 1234.0) < 1e-8)
+    }
+}