Refactoring XML IIDM serialization classes

iidm/iidm-xml-converter/src/main/java/com/powsybl/iidm/xml/AbstractComplexIdentifiableXml.java

@@ -0,0 +1,54 @@
+/**
+ * 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.iidm.xml;
+
+import com.powsybl.commons.PowsyblException;
+import com.powsybl.iidm.network.Identifiable;
+import com.powsybl.iidm.network.IdentifiableAdder;
+import com.powsybl.iidm.xml.util.IidmXmlUtil;
+
+import javax.xml.stream.XMLStreamException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.function.Consumer;
+
+/**
+ * Abstract class for equipment that need their sub-elements to be entirely created.
+ *
+ * @author Miora Vedelago <miora.ralambotiana at rte-france.com>
+ */
+abstract class AbstractComplexIdentifiableXml<T extends Identifiable, A extends IdentifiableAdder<A>, P extends Identifiable> extends AbstractIdentifiableXml<T, A, P> {
+
+    protected abstract void readRootElementAttributes(A adder, List<Consumer<T>> toApply, NetworkXmlReaderContext context);
+
+    protected abstract T add(A adder); // TODO: to change when IIDM adders API is changed (add() is added in API)
+
+    protected void readSubElements(String id, List<Consumer<T>> toApply, NetworkXmlReaderContext context) throws XMLStreamException {
+        if (context.getReader().getLocalName().equals(PropertiesXml.PROPERTY)) {
+            PropertiesXml.read(toApply, context);
+        } else if (context.getReader().getLocalName().equals(AliasesXml.ALIAS)) {
+            IidmXmlUtil.assertMinimumVersion(getRootElementName(), AliasesXml.ALIAS, IidmXmlUtil.ErrorMessage.NOT_SUPPORTED, IidmXmlVersion.V_1_3, context);
+            AliasesXml.read(toApply, context);
+        } else {
+            throw new PowsyblException("Unknown element name <" + context.getReader().getLocalName() + "> in <" + id + ">");
+        }
+    }
+
+    protected abstract void readSubElements(String id, A adder, List<Consumer<T>> toApply, NetworkXmlReaderContext context) throws XMLStreamException;
+
+    @Override
+    public final void read(P parent, NetworkXmlReaderContext context) throws XMLStreamException {
+        List<Consumer<T>> toApply = new ArrayList<>();
+        A adder = createAdder(parent);
+        String id = readIdentifierAttributes(adder, context);
+        readRootElementAttributes(adder, toApply, context);
+        readSubElements(id, adder, toApply, context);
+        T identifiable = add(adder);
+        toApply.forEach(consumer -> consumer.accept(identifiable));
+    }
+}

iidm/iidm-xml-converter/src/main/java/com/powsybl/iidm/xml/AbstractIdentifiableXml.java

@@ -6,7 +6,6 @@
  */
 package com.powsybl.iidm.xml;
 
-import com.powsybl.commons.PowsyblException;
 import com.powsybl.commons.exceptions.UncheckedXmlStreamException;
 import com.powsybl.commons.xml.XmlUtil;
 import com.powsybl.iidm.network.Identifiable;
@@ -17,7 +16,6 @@
 import javax.xml.stream.XMLStreamReader;
 
 /**
- *
  * @author Geoffroy Jamgotchian <geoffroy.jamgotchian at rte-france.com>
  */
 abstract class AbstractIdentifiableXml<T extends Identifiable, A extends IdentifiableAdder<A>, P extends Identifiable> {
@@ -80,34 +78,11 @@ public final void write(T identifiable, P parent, NetworkXmlWriterContext contex
         context.addExportedEquipment(identifiable);
     }
 
-    protected void readUntilEndRootElement(XMLStreamReader reader, XmlUtil.XmlEventHandler eventHandler) throws XMLStreamException {
-        XmlUtil.readUntilEndElement(getRootElementName(), reader, eventHandler);
-    }
-
     protected abstract A createAdder(P parent);
 
-    protected abstract T readRootElementAttributes(A adder, NetworkXmlReaderContext context);
-
-    protected void readSubElements(T identifiable, NetworkXmlReaderContext context) throws XMLStreamException {
-        if (context.getReader().getLocalName().equals(PropertiesXml.PROPERTY)) {
-            PropertiesXml.read(identifiable, context);
-        } else if (context.getReader().getLocalName().equals(AliasesXml.ALIAS)) {
-            IidmXmlUtil.assertMinimumVersion(getRootElementName(), AliasesXml.ALIAS, IidmXmlUtil.ErrorMessage.NOT_SUPPORTED, IidmXmlVersion.V_1_3, context);
-            AliasesXml.read(identifiable, context);
-        } else {
-            throw new PowsyblException("Unknown element name <" + context.getReader().getLocalName() + "> in <" + identifiable.getId() + ">");
-        }
-    }
+    public abstract void read(P parent, NetworkXmlReaderContext context) throws XMLStreamException;
 
-    protected void readElement(String id, A adder, NetworkXmlReaderContext context) throws XMLStreamException {
-        T identifiable = readRootElementAttributes(adder, context);
-        if (identifiable != null) {
-            readSubElements(identifiable, context);
-        }
-    }
-
-    public final void read(P parent, NetworkXmlReaderContext context) throws XMLStreamException {
-        A adder = createAdder(parent);
+    protected String readIdentifierAttributes(A adder, NetworkXmlReaderContext context) {
         String id = context.getAnonymizer().deanonymizeString(context.getReader().getAttributeValue(null, "id"));
         String name = context.getAnonymizer().deanonymizeString(context.getReader().getAttributeValue(null, "name"));
         adder.setId(id)
@@ -116,6 +91,10 @@ public final void read(P parent, NetworkXmlReaderContext context) throws XMLStre
             boolean fictitious = XmlUtil.readOptionalBoolAttribute(context.getReader(), "fictitious", false);
             adder.setFictitious(fictitious);
         });
-        readElement(id, adder, context);
+        return id;
+    }
+
+    protected void readUntilEndRootElement(XMLStreamReader reader, XmlUtil.XmlEventHandler eventHandler) throws XMLStreamException {
+        XmlUtil.readUntilEndElement(getRootElementName(), reader, eventHandler);
     }
 }

iidm/iidm-xml-converter/src/main/java/com/powsybl/iidm/xml/AbstractSimpleIdentifiableXml.java

@@ -0,0 +1,46 @@
+/**
+ * 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.iidm.xml;
+
+import com.powsybl.commons.PowsyblException;
+import com.powsybl.iidm.network.Identifiable;
+import com.powsybl.iidm.network.IdentifiableAdder;
+import com.powsybl.iidm.xml.util.IidmXmlUtil;
+
+import javax.xml.stream.XMLStreamException;
+
+/**
+ * Abstract class for equipment that can and/or must be entirely created before reading their sub-elements.
+ *
+ * @author Miora Vedelago <miora.ralambotiana at rte-france.com>
+ */
+abstract class AbstractSimpleIdentifiableXml<T extends Identifiable, A extends IdentifiableAdder<A>, P extends Identifiable> extends AbstractIdentifiableXml<T, A, P> {
+
+    protected abstract T readRootElementAttributes(A adder, NetworkXmlReaderContext context);
+
+    protected void readSubElements(T identifiable, NetworkXmlReaderContext context) throws XMLStreamException {
+        if (context.getReader().getLocalName().equals(PropertiesXml.PROPERTY)) {
+            PropertiesXml.read(identifiable, context);
+        } else if (context.getReader().getLocalName().equals(AliasesXml.ALIAS)) {
+            IidmXmlUtil.assertMinimumVersion(getRootElementName(), AliasesXml.ALIAS, IidmXmlUtil.ErrorMessage.NOT_SUPPORTED, IidmXmlVersion.V_1_3, context);
+            AliasesXml.read(identifiable, context);
+        } else {
+            throw new PowsyblException("Unknown element name <" + context.getReader().getLocalName() + "> in <" + identifiable.getId() + ">");
+        }
+    }
+
+    @Override
+    public final void read(P parent, NetworkXmlReaderContext context) throws XMLStreamException {
+        A adder = createAdder(parent);
+        readIdentifierAttributes(adder, context);
+        T identifiable = readRootElementAttributes(adder, context);
+        if (identifiable != null) {
+            readSubElements(identifiable, context);
+        }
+    }
+}

iidm/iidm-xml-converter/src/main/java/com/powsybl/iidm/xml/AbstractSwitchXml.java

@@ -18,7 +18,7 @@
  *
  * @author Geoffroy Jamgotchian <geoffroy.jamgotchian at rte-france.com>
  */
-abstract class AbstractSwitchXml<A extends IdentifiableAdder<A>> extends AbstractIdentifiableXml<Switch, A, VoltageLevel> {
+abstract class AbstractSwitchXml<A extends IdentifiableAdder<A>> extends AbstractSimpleIdentifiableXml<Switch, A, VoltageLevel> {
 
     static final String ROOT_ELEMENT_NAME = "switch";
 

iidm/iidm-xml-converter/src/main/java/com/powsybl/iidm/xml/AbstractTransformerXml.java

@@ -19,7 +19,7 @@
 /**
  * @author Geoffroy Jamgotchian <geoffroy.jamgotchian at rte-france.com>
  */
-abstract class AbstractTransformerXml<T extends Connectable, A extends IdentifiableAdder<A>> extends AbstractConnectableXml<T, A, Container<? extends Identifiable<?>>> {
+abstract class AbstractTransformerXml<T extends Connectable, A extends IdentifiableAdder<A>> extends AbstractSimpleIdentifiableXml<T, A, Container<? extends Identifiable<?>>> {
 
     private interface StepConsumer {
         void accept(double r, double x, double g, double b, double rho);

iidm/iidm-xml-converter/src/main/java/com/powsybl/iidm/xml/AliasesXml.java

@@ -11,6 +11,8 @@
 import com.powsybl.iidm.xml.util.IidmXmlUtil;
 
 import javax.xml.stream.XMLStreamException;
+import java.util.List;
+import java.util.function.Consumer;
 
 /**
  * @author Sebastien Murgey <sebastien.murgey at rte-france.com>
@@ -35,14 +37,22 @@ public static void write(Identifiable<?> identifiable, String rootElementName, N
         }
     }
 
-    public static void read(Identifiable<?> identifiable, NetworkXmlReaderContext context) throws XMLStreamException {
+    public static <T extends Identifiable> void read(T identifiable, NetworkXmlReaderContext context) throws XMLStreamException {
+        read(context).accept(identifiable);
+    }
+
+    public static <T extends Identifiable> void read(List<Consumer<T>> toApply, NetworkXmlReaderContext context) throws XMLStreamException {
+        toApply.add(read(context));
+    }
+
+    private static <T extends Identifiable> Consumer<T> read(NetworkXmlReaderContext context) throws XMLStreamException {
         if (!context.getReader().getLocalName().equals(ALIAS)) {
             throw new IllegalStateException();
         }
         String[] aliasType = new String[1];
         IidmXmlUtil.runFromMinimumVersion(IidmXmlVersion.V_1_4, context, () -> aliasType[0] = context.getReader().getAttributeValue(null, "type"));
         String alias = context.getAnonymizer().deanonymizeString(context.getReader().getElementText());
-        identifiable.addAlias(alias, aliasType[0]);
+        return identifiable -> identifiable.addAlias(alias, aliasType[0]);
     }
 
     private AliasesXml() {

iidm/iidm-xml-converter/src/main/java/com/powsybl/iidm/xml/BatteryXml.java

@@ -14,10 +14,12 @@
 
 import javax.xml.stream.XMLStreamException;
 
+import static com.powsybl.iidm.xml.ConnectableXmlUtil.*;
+
 /**
  * @author Ghiles Abdellah <ghiles.abdellah at rte-france.com>
  */
-class BatteryXml extends AbstractConnectableXml<Battery, BatteryAdder, VoltageLevel> {
+class BatteryXml extends AbstractSimpleIdentifiableXml<Battery, BatteryAdder, VoltageLevel> {
 
     static final BatteryXml INSTANCE = new BatteryXml();
 

iidm/iidm-xml-converter/src/main/java/com/powsybl/iidm/xml/BusXml.java

@@ -18,7 +18,7 @@
  *
  * @author Geoffroy Jamgotchian <geoffroy.jamgotchian at rte-france.com>
  */
-class BusXml extends AbstractIdentifiableXml<Bus, BusAdder, VoltageLevel> {
+class BusXml extends AbstractSimpleIdentifiableXml<Bus, BusAdder, VoltageLevel> {
 
     static final BusXml INSTANCE = new BusXml();
 

iidm/iidm-xml-converter/src/main/java/com/powsybl/iidm/xml/BusbarSectionXml.java

@@ -19,7 +19,7 @@
  *
  * @author Geoffroy Jamgotchian <geoffroy.jamgotchian at rte-france.com>
  */
-class BusbarSectionXml extends AbstractIdentifiableXml<BusbarSection, BusbarSectionAdder, VoltageLevel> {
+class BusbarSectionXml extends AbstractSimpleIdentifiableXml<BusbarSection, BusbarSectionAdder, VoltageLevel> {
 
     static final BusbarSectionXml INSTANCE = new BusbarSectionXml();
 

iidm/iidm-xml-converter/src/main/java/com/powsybl/iidm/xml/AbstractConnectableXml.java → iidm/iidm-xml-converter/src/main/java/com/powsybl/iidm/xml/ConnectableXmlUtil.java

@@ -18,7 +18,10 @@
 /**
  * @author Geoffroy Jamgotchian <geoffroy.jamgotchian at rte-france.com>
  */
-public abstract class AbstractConnectableXml<T extends Connectable, A extends IdentifiableAdder<A>, P extends Container> extends AbstractIdentifiableXml<T, A, P> {
+public final class ConnectableXmlUtil {
+
+    private ConnectableXmlUtil() {
+    }
 
     private static final String BUS = "bus";
     private static final String CONNECTABLE_BUS = "connectableBus";
@@ -39,21 +42,21 @@ private static String indexToString(Integer index) {
         return index != null ? index.toString() : "";
     }
 
-    protected static boolean hasValidOperationalLimits(Branch<?> branch, NetworkXmlWriterContext context) {
+    public static boolean hasValidOperationalLimits(Branch<?> branch, NetworkXmlWriterContext context) {
         if (context.getVersion().compareTo(IidmXmlVersion.V_1_5) >= 0) {
             return !branch.getOperationalLimits1().isEmpty() || !branch.getOperationalLimits2().isEmpty();
         }
         return branch.getCurrentLimits1().isPresent() || branch.getCurrentLimits2().isPresent();
     }
 
-    protected static boolean hasValidOperationalLimits(FlowsLimitsHolder limitsHolder, NetworkXmlWriterContext context) {
+    public static boolean hasValidOperationalLimits(FlowsLimitsHolder limitsHolder, NetworkXmlWriterContext context) {
         if (context.getVersion().compareTo(IidmXmlVersion.V_1_5) >= 0) {
             return !limitsHolder.getOperationalLimits().isEmpty();
         }
         return limitsHolder.getCurrentLimits().isPresent();
     }
 
-    protected static void writeNodeOrBus(Integer index, Terminal t, NetworkXmlWriterContext context) throws XMLStreamException {
+    public static void writeNodeOrBus(Integer index, Terminal t, NetworkXmlWriterContext context) throws XMLStreamException {
         TopologyLevel topologyLevel = TopologyLevel.min(t.getVoltageLevel().getTopologyKind(), context.getOptions().getTopologyLevel());
         switch (topologyLevel) {
             case NODE_BREAKER:
@@ -88,7 +91,7 @@ private static void writeBus(Integer index, Bus bus, Bus connectableBus, Network
         }
     }
 
-    protected static void readNodeOrBus(InjectionAdder adder, NetworkXmlReaderContext context) {
+    public static void readNodeOrBus(InjectionAdder adder, NetworkXmlReaderContext context) {
         String bus = context.getAnonymizer().deanonymizeString(context.getReader().getAttributeValue(null, BUS));
         String connectableBus = context.getAnonymizer().deanonymizeString(context.getReader().getAttributeValue(null, CONNECTABLE_BUS));
         Integer node = XmlUtil.readOptionalIntegerAttribute(context.getReader(), NODE);
@@ -103,7 +106,7 @@ protected static void readNodeOrBus(InjectionAdder adder, NetworkXmlReaderContex
         }
     }
 
-    protected static void readNodeOrBus(BranchAdder adder, NetworkXmlReaderContext context) {
+    public static void readNodeOrBus(BranchAdder adder, NetworkXmlReaderContext context) {
         String bus1 = context.getAnonymizer().deanonymizeString(context.getReader().getAttributeValue(null, "bus1"));
         String connectableBus1 = context.getAnonymizer().deanonymizeString(context.getReader().getAttributeValue(null, "connectableBus1"));
         Integer node1 = XmlUtil.readOptionalIntegerAttribute(context.getReader(), "node1");
@@ -134,7 +137,7 @@ protected static void readNodeOrBus(BranchAdder adder, NetworkXmlReaderContext c
         adder.setVoltageLevel2(voltageLevelId2);
     }
 
-    protected static void readNodeOrBus(int index, LegAdder adder, NetworkXmlReaderContext context) {
+    public static void readNodeOrBus(int index, LegAdder adder, NetworkXmlReaderContext context) {
         String bus = context.getAnonymizer().deanonymizeString(context.getReader().getAttributeValue(null, BUS + index));
         String connectableBus = context.getAnonymizer().deanonymizeString(context.getReader().getAttributeValue(null, CONNECTABLE_BUS + index));
         Integer node = XmlUtil.readOptionalIntegerAttribute(context.getReader(), NODE + index);
@@ -151,12 +154,12 @@ protected static void readNodeOrBus(int index, LegAdder adder, NetworkXmlReaderC
         adder.setVoltageLevel(voltageLevelId);
     }
 
-    protected static void writePQ(Integer index, Terminal t, XMLStreamWriter writer) throws XMLStreamException {
+    public static void writePQ(Integer index, Terminal t, XMLStreamWriter writer) throws XMLStreamException {
         XmlUtil.writeOptionalDouble("p" + indexToString(index), t.getP(), Double.NaN, writer);
         XmlUtil.writeOptionalDouble("q" + indexToString(index), t.getQ(), Double.NaN, writer);
     }
 
-    protected static void readPQ(Integer index, Terminal t, XMLStreamReader reader) {
+    public static void readPQ(Integer index, Terminal t, XMLStreamReader reader) {
         double p = XmlUtil.readOptionalDoubleAttribute(reader, "p" + indexToString(index));
         double q = XmlUtil.readOptionalDoubleAttribute(reader, "q" + indexToString(index));
         t.setP(p)
@@ -268,15 +271,15 @@ private static <L extends LoadingLimits> void writeLoadingLimits(Integer index,
      * @deprecated Use {@link TerminalRefXml#writeTerminalRef(Terminal, NetworkXmlWriterContext, String)} instead.
      */
     @Deprecated
-    protected static void writeTerminalRef(Terminal t, NetworkXmlWriterContext context, String elementName) throws XMLStreamException {
+    public static void writeTerminalRef(Terminal t, NetworkXmlWriterContext context, String elementName) throws XMLStreamException {
         TerminalRefXml.writeTerminalRef(t, context, elementName);
     }
 
     /**
      * @deprecated Use {@link TerminalRefXml#readTerminalRef(Network, String, String)} instead.
      */
     @Deprecated
-    protected static Terminal readTerminalRef(Network network, String id, String side) {
+    public static Terminal readTerminalRef(Network network, String id, String side) {
         return TerminalRefXml.readTerminalRef(network, id, side);
     }
 }

iidm/iidm-xml-converter/src/main/java/com/powsybl/iidm/xml/DanglingLineXml.java

@@ -13,11 +13,13 @@
 import javax.xml.stream.XMLStreamException;
 import java.util.Optional;
 
+import static com.powsybl.iidm.xml.ConnectableXmlUtil.*;
+
 /**
  *
  * @author Geoffroy Jamgotchian <geoffroy.jamgotchian at rte-france.com>
  */
-class DanglingLineXml extends AbstractConnectableXml<DanglingLine, DanglingLineAdder, VoltageLevel> {
+class DanglingLineXml extends AbstractSimpleIdentifiableXml<DanglingLine, DanglingLineAdder, VoltageLevel> {
     private static final String GENERATION = "generation";
     private static final String GENERATION_MAX_P = "generationMaxP";
     private static final String GENERATION_MIN_P = "generationMinP";

iidm/iidm-xml-converter/src/main/java/com/powsybl/iidm/xml/GeneratorXml.java

@@ -14,10 +14,12 @@
 
 import javax.xml.stream.XMLStreamException;
 
+import static com.powsybl.iidm.xml.ConnectableXmlUtil.*;
+
 /**
  * @author Geoffroy Jamgotchian <geoffroy.jamgotchian at rte-france.com>
  */
-class GeneratorXml extends AbstractConnectableXml<Generator, GeneratorAdder, VoltageLevel> {
+class GeneratorXml extends AbstractSimpleIdentifiableXml<Generator, GeneratorAdder, VoltageLevel> {
 
     static final GeneratorXml INSTANCE = new GeneratorXml();
 

iidm/iidm-xml-converter/src/main/java/com/powsybl/iidm/xml/HvdcLineXml.java

@@ -17,7 +17,7 @@
  * @author Geoffroy Jamgotchian <geoffroy.jamgotchian at rte-france.com>
  * @author Mathieu Bague <mathieu.bague at rte-france.com>
  */
-class HvdcLineXml extends AbstractIdentifiableXml<HvdcLine, HvdcLineAdder, Network> {
+class HvdcLineXml extends AbstractSimpleIdentifiableXml<HvdcLine, HvdcLineAdder, Network> {
 
     static final HvdcLineXml INSTANCE = new HvdcLineXml();