Add model to represent generated snapshot .bp file

Having each module type generate the contents of the snapshot's .bp
file results in lots of duplicated code. This adds an intermediate
model for use by the module types and then generates the .bp file
contents from that.

This not only removes the duplicated formatting code but it also
allows consistent handling of shared properties such as name further
reducing duplication. It also makes it possible to duplicate the
versioned and unversioned prebuilt modules from the same model.

Extracts generatedContents from generatedFile to allow the contents
to be populated without creating an output file, for testing.

Cleans up unused code.

Bug: 143678475
Test: m nothing
Change-Id: If21b84db0ef3fdfb5dc11ea0973ce6cb73603ea3

1 files changed, 2 insertions, 24 deletions

diff --git a/java/java.go b/java/java.go
index 1c52575d2..50fa135d5 100644
--- a/java/java.go
+++ b/java/java.go
@@ -1729,30 +1729,8 @@ func (j *Library) BuildSnapshot(sdkModuleContext android.ModuleContext, builder
 		}
 	}
 
-	j.generateJavaImport(builder, snapshotRelativeJavaLibPath, true)
-
-	// This module is for the case when the source tree for the unversioned module
-	// doesn't exist (i.e. building in an unbundled tree). "prefer:" is set to false
-	// so that this module does not eclipse the unversioned module if it exists.
-	j.generateJavaImport(builder, snapshotRelativeJavaLibPath, false)
-}
-
-func (j *Library) generateJavaImport(builder android.SnapshotBuilder, snapshotRelativeJavaLibPath string, versioned bool) {
-	bp := builder.AndroidBpFile()
-	name := j.Name()
-	bp.Printfln("java_import {")
-	bp.Indent()
-	if versioned {
-		bp.Printfln("name: %q,", builder.VersionedSdkMemberName(name))
-		bp.Printfln("sdk_member_name: %q,", name)
-	} else {
-		bp.Printfln("name: %q,", name)
-		bp.Printfln("prefer: false,")
-	}
-	bp.Printfln("jars: [%q],", snapshotRelativeJavaLibPath)
-	bp.Dedent()
-	bp.Printfln("}")
-	bp.Printfln("")
+	module := builder.AddPrebuiltModule(sdkModuleContext.OtherModuleName(j), "java_import")
+	module.AddProperty("jars", []string{snapshotRelativeJavaLibPath})
 }
 
 // java_library builds and links sources into a `.jar` file for the device, and possibly for the host as well.