Dom Converter for java packages

java/java-impl/src/com/intellij/util/xml/PsiPackageConverter.java

@@ -0,0 +1,30 @@
+package com.intellij.util.xml;
+
+import com.intellij.psi.*;
+import com.intellij.psi.impl.source.resolve.reference.impl.providers.PackageReferenceSet;
+import org.jetbrains.annotations.NonNls;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * @author Konstantin Bulenkov
+ */
+public class PsiPackageConverter extends Converter<PsiPackage> implements CustomReferenceConverter<PsiPackage> {
+  public PsiPackage fromString(@Nullable @NonNls String s, final ConvertContext context) {
+    if (s == null) return null;
+    return JavaPsiFacade.getInstance(context.getPsiManager().getProject()).findPackage(s);
+  }
+
+  public String toString(@Nullable PsiPackage psiPackage, final ConvertContext context) {
+    return psiPackage == null ? null : psiPackage.getQualifiedName();
+  }
+
+  @NotNull
+  public PsiReference[] createReferences(GenericDomValue<PsiPackage> genericDomValue, PsiElement element, ConvertContext context) {
+    final String s = genericDomValue.getStringValue();
+    if (s == null) {
+      return PsiReference.EMPTY_ARRAY;
+    }
+    return new PackageReferenceSet(s, element, ElementManipulators.getOffsetInElement(element)).getPsiReferences();
+  }
+}