apply CompositeModification

src/main/java/org/gridsuite/modification/dto/CompositeModificationInfos.java

@@ -8,6 +8,7 @@
 
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.powsybl.commons.report.ReportNode;
 import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
@@ -33,6 +34,10 @@
 @ModificationErrorTypeName("COMPOSITE_MODIFICATION_ERROR")
 public class CompositeModificationInfos extends ModificationInfos {
 
+    @Schema(description = "composite modification name")
+    @JsonInclude(JsonInclude.Include.NON_NULL)
+    private String name;
+
     @Schema(description = "composite modification list")
     @JsonInclude(JsonInclude.Include.NON_NULL)
     private List<ModificationInfos> modifications;
@@ -41,4 +46,12 @@ public class CompositeModificationInfos extends ModificationInfos {
     public AbstractModification toModification() {
         return new CompositeModification(this);
     }
+
+    @Override
+    public ReportNode createSubReportNode(ReportNode reportNode) {
+        return reportNode.newReportNode()
+                .withMessageTemplate("network.modification.composite.apply")
+                .withUntypedValue("modificationName", getName())
+                .add();
+    }
 }

src/main/java/org/gridsuite/modification/dto/ModificationsToCopyInfos.java

@@ -0,0 +1,30 @@
+/**
+ * Copyright (c) 2026, 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/.
+ */
+
+package org.gridsuite.modification.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.util.UUID;
+
+/**
+ * @author Mathieu Deharbe <mathieu.deharbe at rte-france.com>
+ */
+@AllArgsConstructor
+@NoArgsConstructor
+@Getter
+@Builder
+public class ModificationsToCopyInfos {
+    private UUID uuid;
+
+    // only useful when the operation is the import of a composite as a complete composite
+    private String compositeName;
+}
+

src/main/java/org/gridsuite/modification/modifications/CompositeModification.java

@@ -7,20 +7,46 @@
 package org.gridsuite.modification.modifications;
 
 import com.powsybl.commons.report.ReportNode;
+import com.powsybl.commons.report.TypedValue;
 import com.powsybl.iidm.network.Network;
 import org.gridsuite.modification.dto.CompositeModificationInfos;
+import org.gridsuite.modification.report.NetworkModificationReportResourceBundle;
+
+import static org.gridsuite.modification.modifications.byfilter.AbstractModificationByAssignment.VALUE_KEY_ERROR_MESSAGE;
 
 /**
  * @author Ghazwa Rehili <ghazwa.rehili at rte-france.com>
  */
 public class CompositeModification extends AbstractModification {
 
+    private final CompositeModificationInfos compositeModificationInfos;
+
     public CompositeModification(CompositeModificationInfos compositeModificationInfos) {
+        this.compositeModificationInfos = compositeModificationInfos;
     }
 
     @Override
     public void apply(Network network, ReportNode subReportNode) {
-        throw new UnsupportedOperationException();
+        compositeModificationInfos.getModifications().forEach(
+            modif -> {
+                ReportNode modifNode = modif.createSubReportNode(subReportNode);
+                try {
+                    AbstractModification modification = modif.toModification();
+                    modification.check(network);
+                    modification.apply(network, modifNode);
+                } catch (Exception e) {
+                    // in case of error in a network modification, the composite modification doesn't interrupt its execution :
+                    // the following modifications will be carried out
+                    modifNode.newReportNode()
+                            .withResourceBundles(NetworkModificationReportResourceBundle.BASE_NAME)
+                            .withMessageTemplate("network.modification.composite.exception.report")
+                            .withUntypedValue("modificationName", modif.toModification().getName())
+                            .withUntypedValue(VALUE_KEY_ERROR_MESSAGE, e.getMessage())
+                            .withSeverity(TypedValue.ERROR_SEVERITY)
+                            .add();
+                }
+            }
+        );
     }
 
     @Override

src/main/resources/org/gridsuite/modification/reports.properties

@@ -192,6 +192,8 @@ network.modification.noLimitSetSelectedOnSide1 = No limit set selected on side 1
 network.modification.noLimitSetSelectedOnSide2 = No limit set selected on side 2
 network.modification.limitSetAbsentOnSide1 = limit set '${selectedOperationalLimitsGroup}' on side 1 does not exist
 network.modification.limitSetAbsentOnSide2 = limit set '${selectedOperationalLimitsGroup}' on side 2 does not exist
+network.modification.composite.apply = Composite modification : '${modificationName}'
+network.modification.composite.exception.report = Cannot execute ${modificationName} : ${errorMessage}
 network.modification.applicabilityChanged = limit set ${operationalLimitsGroupName} applicability changed to ${applicability}
 network.modification.limits = Limits
 network.modification.activeLimitsSets = Active limits sets

src/test/java/org/gridsuite/modification/modifications/CompositeModificationsTest.java

@@ -6,18 +6,24 @@
  */
 package org.gridsuite.modification.modifications;
 
+import com.powsybl.commons.PowsyblException;
+import com.powsybl.commons.report.ReportNode;
+import com.powsybl.iidm.network.Generator;
 import com.powsybl.iidm.network.LoadType;
 import com.powsybl.iidm.network.Network;
 
 import org.gridsuite.modification.ModificationType;
-import org.gridsuite.modification.dto.CompositeModificationInfos;
-import org.gridsuite.modification.dto.ModificationInfos;
+import org.gridsuite.modification.dto.*;
+import org.gridsuite.modification.report.NetworkModificationReportResourceBundle;
 import org.gridsuite.modification.utils.ModificationCreation;
 import org.gridsuite.modification.utils.NetworkCreation;
+import org.junit.jupiter.api.Test;
+
 import java.util.List;
 import java.util.UUID;
 
-import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.gridsuite.modification.utils.TestUtils.*;
+import static org.junit.jupiter.api.Assertions.*;
 
 /**
  * @author Ghazwa Rehili <ghazwa.rehili at rte-france.com>
@@ -27,13 +33,64 @@ class CompositeModificationsTest extends AbstractNetworkModificationTest {
 
     @Override
     public void checkModification() {
+        // nothing to check here
     }
 
-    @Override
-    public void testApply() throws Exception {
+    @Test
+    void checkCompositeExecutionDepth() {
+        Network network = getNetwork();
+        CompositeModificationInfos compositeModificationInfos = (CompositeModificationInfos) buildModification();
+
+        // checks that the sub sub sub netmod is executed at the right depth
+        ReportNode report = compositeModificationInfos.createSubReportNode(ReportNode.newRootReportNode()
+                .withResourceBundles(NetworkModificationReportResourceBundle.BASE_NAME)
+                .withMessageTemplate("test")
+                .build());
+        CompositeModification netmod = (CompositeModification) compositeModificationInfos.toModification();
+        assertDoesNotThrow(() -> netmod.apply(network, report));
+        assertLogMessageAtDepth(
+                "Generator with id=idGenerator modified :",
+                "network.modification.generatorModification",
+                report,
+                4
+        );
+        assertLogMessageAtDepth(
+                "Composite modification : 'sub sub composite'",
+                "network.modification.composite.apply",
+                report,
+                2
+        );
+    }
+
+    @Test
+    void checkCompositeExecutionErrorHandling() {
+        Network network = getNetwork();
         CompositeModificationInfos compositeModificationInfos = (CompositeModificationInfos) buildModification();
-        compositeModificationInfos.getModifications().forEach(modificationInfos -> modificationInfos.toModification().apply(getNetwork()));
-        assertAfterNetworkModificationApplication();
+
+        ReportNode report = compositeModificationInfos.createSubReportNode(ReportNode.newRootReportNode()
+                .withResourceBundles(NetworkModificationReportResourceBundle.BASE_NAME)
+                .withMessageTemplate("test")
+                .build());
+        // regular throwing exception netmod
+        GeneratorCreation throwingExceptionNetMod = (GeneratorCreation) buildThrowingModification().toModification();
+        assertThrows(PowsyblException.class, () -> throwingExceptionNetMod.apply(network));
+        // but doesn't throw once inside a composite modification
+        compositeModificationInfos.setModifications(List.of(buildThrowingModification()));
+        CompositeModification netmodContainingError = (CompositeModification) compositeModificationInfos.toModification();
+        assertDoesNotThrow(() -> netmodContainingError.apply(network, report));
+        // but the thrown message is inside the report :
+        assertLogMessageWithoutRank(
+                "Cannot execute GeneratorCreation : GENERATOR_ALREADY_EXISTS : idGenerator",
+                "network.modification.composite.exception.report",
+                report
+        );
+
+    }
+
+    private GeneratorCreationInfos buildThrowingModification() {
+        return ModificationCreation.getCreationGenerator(
+                "v1", "idGenerator", "nameGenerator", "1B", "v2load", "LOAD", "v1"
+        );
     }
 
     @Override
@@ -44,19 +101,44 @@ protected Network createNetwork(UUID networkUuid) {
     @Override
     protected ModificationInfos buildModification() {
         List<ModificationInfos> modifications = List.of(
-                ModificationCreation.getCreationGenerator("v1", "idGenerator", "nameGenerator", "1B", "v2load", "LOAD",
-                        "v1"),
+                CompositeModificationInfos.builder()
+                        .name("sub composite 1")
+                        .modifications(
+                                List.of(
+                                        ModificationCreation.getModificationGenerator("idGenerator", "other idGenerator name"),
+                                        // this should throw an error but not stop the execution of the composite modification and all the other content
+                                        buildThrowingModification()
+                                )
+                        ).build(),
+                ModificationCreation.getModificationGenerator("idGenerator", "new idGenerator name"),
                 ModificationCreation.getCreationLoad("v1", "idLoad", "nameLoad", "1.1", LoadType.UNDEFINED),
-                ModificationCreation.getCreationBattery("v1", "idBattery", "nameBattry", "1.1"));
+                ModificationCreation.getCreationBattery("v1", "idBattery", "nameBattery", "1.1"),
+                // test of a composite modification inside a composite modification inside a composite modification
+                CompositeModificationInfos.builder()
+                        .name("sub composite 2")
+                        .modifications(
+                                List.of(
+                                        CompositeModificationInfos.builder()
+                                                .name("sub sub composite")
+                                                .modifications(
+                                                        List.of(ModificationCreation.getModificationGenerator("idGenerator", "other idGenerator name again"))
+                                                ).build(),
+                                        ModificationCreation.getModificationGenerator("idGenerator", "even newer idGenerator name")
+                                )
+                        ).build()
+        );
         return CompositeModificationInfos.builder()
+                .name("main composite")
                 .modifications(modifications)
                 .stashed(false)
                 .build();
     }
 
     @Override
     protected void assertAfterNetworkModificationApplication() {
-        assertNotNull(getNetwork().getGenerator("idGenerator"));
+        Generator gen = getNetwork().getGenerator("idGenerator");
+        assertNotNull(gen);
+        assertEquals("even newer idGenerator name", gen.getOptionalName().orElseThrow());
         assertNotNull(getNetwork().getLoad("idLoad"));
         assertNotNull(getNetwork().getBattery("idBattery"));
     }

src/test/java/org/gridsuite/modification/utils/TestUtils.java

@@ -58,6 +58,12 @@ public static void assertLogNthMessage(String expectedMessage, String reportKey,
         assertEquals(expectedMessage, message.get().trim());
     }
 
+    public static void assertLogMessageAtDepth(String expectedMessage, String reportKey, ReportNode reportNode, int depth) {
+        Optional<String> message = getMessageFromReporterAtDepth(reportKey, reportNode, 1, depth);
+        assertTrue(message.isPresent());
+        assertEquals(expectedMessage, message.get().trim());
+    }
+
     public static void assertLogMessage(String expectedMessage, String reportKey, ReportNode reportNode) {
         assertLogNthMessage(expectedMessage, reportKey, reportNode, 1);
     }
@@ -85,6 +91,28 @@ private static boolean assertMessageFoundFromReporter(String expectedMessage, St
         return foundInSubReporters;
     }
 
+    private static Optional<String> getMessageFromReporterAtDepth(String reportKey, ReportNode reporterModel, int currentDepth, int expectedDepth) {
+        Optional<String> message = Optional.empty();
+
+        Iterator<ReportNode> reportersIterator = reporterModel.getChildren().iterator();
+        while (message.isEmpty() && reportersIterator.hasNext() && currentDepth < expectedDepth) {
+            message = getMessageFromReporterAtDepth(reportKey, reportersIterator.next(), currentDepth + 1, expectedDepth);
+        }
+
+        Iterator<ReportNode> reportsIterator = reporterModel.getChildren().iterator();
+        while (message.isEmpty() && reportsIterator.hasNext()) {
+            ReportNode report = reportsIterator.next();
+            if (currentDepth == expectedDepth && report.getMessageKey().equals(reportKey)) {
+                message = Optional.of(formatReportMessage(report, reporterModel));
+            }
+        }
+
+        return message;
+    }
+
+    /**
+     * @param rank order position inside reporterModel
+     */
     private static Optional<String> getMessageFromReporter(String reportKey, ReportNode reporterModel, int rank) {
         Optional<String> message = Optional.empty();