bp2build for java libraries using xsd_config srcs

In Soong, java libraries can use src files generated from xsd_config. In
Bazel, instead of providing srcs, java_xsd_config_library will provide a
jar. Update bp2build so that all src references to xsd_config modules in
srcs get routed to deps and exports attributes

This CL creates an interface in build/soong/android to get around a
circular dependency issue. The bp2build logic needs to exist in
soong-java, but soong-java does have soong-xsdc in its package path. Use
the interface and type assertions to special case xsd_config references

Bug: 211678537
Test: bp2build test in sibling CL in system/tools/xsdc
Change-Id: Ida924bb20b1fd7eb8beeef950b070d37a9c6f3b5
diff --git a/java/java.go b/java/java.go
index aa9f936..d5ddbbe 100644
--- a/java/java.go
+++ b/java/java.go
@@ -2798,6 +2798,14 @@
 	hasKotlin bool
 }
 
+// Replaces //a/b/my_xsd_config with //a/b/my_xsd_config-java
+func xsdConfigJavaTarget(ctx android.BazelConversionPathContext, mod blueprint.Module) string {
+	callback := func(xsd android.XsdConfigBp2buildTargets) string {
+		return xsd.JavaBp2buildTargetName()
+	}
+	return android.XsdConfigBp2buildTarget(ctx, mod, callback)
+}
+
 // convertLibraryAttrsBp2Build returns a javaCommonAttributes struct with
 // converted attributes shared across java_* modules and a bp2BuildJavaInfo struct
 // which has other non-attribute information needed for bp2build conversion
@@ -2812,8 +2820,15 @@
 	for axis, configToProps := range archVariantProps {
 		for config, _props := range configToProps {
 			if archProps, ok := _props.(*CommonProperties); ok {
-				archSrcs := android.BazelLabelForModuleSrcExcludes(ctx, archProps.Srcs, archProps.Exclude_srcs)
+				srcsNonXsd, srcsXsd := android.PartitionXsdSrcs(ctx, archProps.Srcs)
+				excludeSrcsNonXsd, _ := android.PartitionXsdSrcs(ctx, archProps.Exclude_srcs)
+				archSrcs := android.BazelLabelForModuleSrcExcludes(ctx, srcsNonXsd, excludeSrcsNonXsd)
 				srcs.SetSelectValue(axis, config, archSrcs)
+
+				// Add to static deps
+				xsdJavaConfigLibraryLabels := android.BazelLabelForModuleDepsWithFn(ctx, srcsXsd, xsdConfigJavaTarget)
+				staticDeps.Append(xsdJavaConfigLibraryLabels)
+
 			}
 		}
 	}