Feat/delegate expression name extract

backend-diagram-converter/core/src/main/java/org/camunda/community/migration/converter/visitor/AbstractDelegateImplementationVisitor.java

@@ -1,6 +1,7 @@
 package org.camunda.community.migration.converter.visitor;
 
 import java.util.Set;
+import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 import org.camunda.community.migration.converter.DomElementVisitorContext;
@@ -10,6 +11,7 @@
 
 public abstract class AbstractDelegateImplementationVisitor
     extends AbstractSupportedAttributeVisitor {
+  public static final Pattern DELEGATE_NAME_EXTRACT = Pattern.compile("\\$\\{(.*)\\}");
   private static final Set<String> IGNORE =
       Stream.of("taskListener", "executionListener", "errorEventDefinition")
           .collect(Collectors.toSet());

backend-diagram-converter/core/src/test/java/org/camunda/community/migration/converter/DelegateImplementationVisitorTest.java

@@ -0,0 +1,17 @@
+package org.camunda.community.migration.converter;
+
+import static org.assertj.core.api.Assertions.*;
+import static org.camunda.community.migration.converter.visitor.AbstractDelegateImplementationVisitor.*;
+
+import java.util.regex.Matcher;
+import org.junit.jupiter.api.Test;
+
+public class DelegateImplementationVisitorTest {
+  @Test
+  void shouldReturnDelegateName() {
+    String delegateExpression = "${someReallyCoolDelegate}";
+    Matcher matcher = DELEGATE_NAME_EXTRACT.matcher(delegateExpression);
+    String delegateName = matcher.find() ? matcher.group(1) : null;
+    assertThat(delegateName).isNotNull().isEqualTo("someReallyCoolDelegate");
+  }
+}