Remove unused old tool.

This codegen was never actually put into production.

Test: build
Change-Id: I0f8b5a994bf9fd32b4b5cbb4ab469ede8988edbb

7 files changed, 0 insertions, 936 deletions

diff --git a/tools/xmlpersistence/Android.bp b/tools/xmlpersistence/Android.bp
deleted file mode 100644
index 0b6dba626794..000000000000
--- a/tools/xmlpersistence/Android.bp
+++ /dev/null
@@ -1,20 +0,0 @@
-package {
-    // See: http://go/android-license-faq
-    // A large-scale-change added 'default_applicable_licenses' to import
-    // all of the 'license_kinds' from "frameworks_base_license"
-    // to get the below license kinds:
-    //   SPDX-license-identifier-Apache-2.0
-    default_applicable_licenses: ["frameworks_base_license"],
-}
-
-java_binary_host {
-    name: "xmlpersistence_cli",
-    manifest: "manifest.txt",
-    srcs: [
-        "src/**/*.kt",
-    ],
-    static_libs: [
-        "javaparser-symbol-solver",
-        "javapoet",
-    ],
-}
diff --git a/tools/xmlpersistence/OWNERS b/tools/xmlpersistence/OWNERS
deleted file mode 100644
index 4f4d06a32676..000000000000
--- a/tools/xmlpersistence/OWNERS
+++ /dev/null
@@ -1 +0,0 @@
-zhanghai@google.com
diff --git a/tools/xmlpersistence/manifest.txt b/tools/xmlpersistence/manifest.txt
deleted file mode 100644
index 6d9771998efc..000000000000
--- a/tools/xmlpersistence/manifest.txt
+++ /dev/null
@@ -1 +0,0 @@
-Main-class: MainKt
diff --git a/tools/xmlpersistence/src/main/kotlin/Generator.kt b/tools/xmlpersistence/src/main/kotlin/Generator.kt
deleted file mode 100644
index 8e62388c860f..000000000000
--- a/tools/xmlpersistence/src/main/kotlin/Generator.kt
+++ /dev/null
@@ -1,577 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-import com.squareup.javapoet.ClassName
-import com.squareup.javapoet.FieldSpec
-import com.squareup.javapoet.JavaFile
-import com.squareup.javapoet.MethodSpec
-import com.squareup.javapoet.NameAllocator
-import com.squareup.javapoet.ParameterSpec
-import com.squareup.javapoet.TypeSpec
-import java.io.File
-import java.io.FileInputStream
-import java.io.FileNotFoundException
-import java.io.FileOutputStream
-import java.io.IOException
-import java.nio.charset.StandardCharsets
-import java.time.Year
-import java.util.Objects
-import javax.lang.model.element.Modifier
-
-// JavaPoet only supports line comments, and can't add a newline after file level comments.
-val FILE_HEADER = """
-    /*
-     * Copyright (C) ${Year.now().value} The Android Open Source Project
-     *
-     * Licensed under the Apache License, Version 2.0 (the "License");
-     * you may not use this file except in compliance with the License.
-     * You may obtain a copy of the License at
-     *
-     *      http://www.apache.org/licenses/LICENSE-2.0
-     *
-     * Unless required by applicable law or agreed to in writing, software
-     * distributed under the License is distributed on an "AS IS" BASIS,
-     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     * See the License for the specific language governing permissions and
-     * limitations under the License.
-     */
-
-    // Generated by xmlpersistence. DO NOT MODIFY!
-    // CHECKSTYLE:OFF Generated code
-    // @formatter:off
-""".trimIndent() + "\n\n"
-
-private val atomicFileType = ClassName.get("android.util", "AtomicFile")
-
-fun generate(persistence: PersistenceInfo): JavaFile {
-    val distinctClassFields = persistence.root.allClassFields.distinctBy { it.type }
-    val type = TypeSpec.classBuilder(persistence.name)
-        .addJavadoc(
-            """
-                Generated class implementing XML persistence for${'$'}W{@link $1T}.
-                <p>
-                This class provides atomicity for persistence via {@link $2T}, however it does not provide
-                thread safety, so please bring your own synchronization mechanism.
-            """.trimIndent(), persistence.root.type, atomicFileType
-        )
-        .addModifiers(Modifier.PUBLIC, Modifier.FINAL)
-        .addField(generateFileField())
-        .addMethod(generateConstructor())
-        .addMethod(generateReadMethod(persistence.root))
-        .addMethod(generateParseMethod(persistence.root))
-        .addMethods(distinctClassFields.map { generateParseClassMethod(it) })
-        .addMethod(generateWriteMethod(persistence.root))
-        .addMethod(generateSerializeMethod(persistence.root))
-        .addMethods(distinctClassFields.map { generateSerializeClassMethod(it) })
-        .addMethod(generateDeleteMethod())
-        .build()
-    return JavaFile.builder(persistence.root.type.packageName(), type)
-        .skipJavaLangImports(true)
-        .indent("    ")
-        .build()
-}
-
-private val nonNullType = ClassName.get("android.annotation", "NonNull")
-
-private fun generateFileField(): FieldSpec =
-    FieldSpec.builder(atomicFileType, "mFile", Modifier.PRIVATE, Modifier.FINAL)
-        .addAnnotation(nonNullType)
-        .build()
-
-private fun generateConstructor(): MethodSpec =
-    MethodSpec.constructorBuilder()
-        .addJavadoc(
-            """
-                Create an instance of this class.
-
-                @param file the XML file for persistence
-            """.trimIndent()
-        )
-        .addModifiers(Modifier.PUBLIC)
-        .addParameter(
-            ParameterSpec.builder(File::class.java, "file").addAnnotation(nonNullType).build()
-        )
-        .addStatement("mFile = new \$1T(file)", atomicFileType)
-        .build()
-
-private val nullableType = ClassName.get("android.annotation", "Nullable")
-
-private val xmlPullParserType = ClassName.get("org.xmlpull.v1", "XmlPullParser")
-
-private val xmlType = ClassName.get("android.util", "Xml")
-
-private val xmlPullParserExceptionType = ClassName.get("org.xmlpull.v1", "XmlPullParserException")
-
-private fun generateReadMethod(rootField: ClassFieldInfo): MethodSpec =
-    MethodSpec.methodBuilder("read")
-        .addJavadoc(
-            """
-                Read${'$'}W{@link $1T}${'$'}Wfrom${'$'}Wthe${'$'}WXML${'$'}Wfile.
-
-                @return the persisted${'$'}W{@link $1T},${'$'}Wor${'$'}W{@code null}${'$'}Wif${'$'}Wthe${'$'}WXML${'$'}Wfile${'$'}Wdoesn't${'$'}Wexist
-                @throws IllegalArgumentException if an error occurred while reading
-            """.trimIndent(), rootField.type
-        )
-        .addAnnotation(nullableType)
-        .addModifiers(Modifier.PUBLIC)
-        .returns(rootField.type)
-        .addControlFlow("try (\$1T inputStream = mFile.openRead())", FileInputStream::class.java) {
-            addStatement("final \$1T parser = \$2T.newPullParser()", xmlPullParserType, xmlType)
-            addStatement("parser.setInput(inputStream, null)")
-            addStatement("return parse(parser)")
-            nextControlFlow("catch (\$1T e)", FileNotFoundException::class.java)
-            addStatement("return null")
-            nextControlFlow(
-                "catch (\$1T | \$2T e)", IOException::class.java, xmlPullParserExceptionType
-            )
-            addStatement("throw new IllegalArgumentException(e)")
-        }
-        .build()
-
-private val ClassFieldInfo.allClassFields: List<ClassFieldInfo>
-    get() =
-        mutableListOf<ClassFieldInfo>().apply {
-            this += this@allClassFields
-            for (field in fields) {
-                when (field) {
-                    is ClassFieldInfo -> this += field.allClassFields
-                    is ListFieldInfo -> this += field.element.allClassFields
-                    else -> {}
-                }
-            }
-        }
-
-private fun generateParseMethod(rootField: ClassFieldInfo): MethodSpec =
-    MethodSpec.methodBuilder("parse")
-        .addAnnotation(nonNullType)
-        .addModifiers(Modifier.PRIVATE, Modifier.STATIC)
-        .returns(rootField.type)
-        .addParameter(
-            ParameterSpec.builder(xmlPullParserType, "parser").addAnnotation(nonNullType).build()
-        )
-        .addExceptions(listOf(ClassName.get(IOException::class.java), xmlPullParserExceptionType))
-        .apply {
-            addStatement("int type")
-            addStatement("int depth")
-            addStatement("int innerDepth = parser.getDepth() + 1")
-            addControlFlow(
-                "while ((type = parser.next()) != \$1T.END_DOCUMENT\$W"
-                    + "&& ((depth = parser.getDepth()) >= innerDepth || type != \$1T.END_TAG))",
-                xmlPullParserType
-            ) {
-                addControlFlow(
-                    "if (depth > innerDepth || type != \$1T.START_TAG)", xmlPullParserType
-                ) {
-                    addStatement("continue")
-                }
-                addControlFlow(
-                    "if (\$1T.equals(parser.getName(),\$W\$2S))", Objects::class.java,
-                    rootField.tagName
-                ) {
-                    addStatement("return \$1L(parser)", rootField.parseMethodName)
-                }
-            }
-            addStatement(
-                "throw new IllegalArgumentException(\$1S)",
-                "Missing root tag <${rootField.tagName}>"
-            )
-        }
-        .build()
-
-private fun generateParseClassMethod(classField: ClassFieldInfo): MethodSpec =
-    MethodSpec.methodBuilder(classField.parseMethodName)
-        .addAnnotation(nonNullType)
-        .addModifiers(Modifier.PRIVATE, Modifier.STATIC)
-        .returns(classField.type)
-        .addParameter(
-            ParameterSpec.builder(xmlPullParserType, "parser").addAnnotation(nonNullType).build()
-        )
-        .apply {
-            val (attributeFields, tagFields) = classField.fields
-                .partition { it is PrimitiveFieldInfo || it is StringFieldInfo }
-            if (tagFields.isNotEmpty()) {
-                addExceptions(
-                    listOf(ClassName.get(IOException::class.java), xmlPullParserExceptionType)
-                )
-            }
-            val nameAllocator = NameAllocator().apply {
-                newName("parser")
-                newName("type")
-                newName("depth")
-                newName("innerDepth")
-            }
-            for (field in attributeFields) {
-                val variableName = nameAllocator.newName(field.variableName, field)
-                when (field) {
-                    is PrimitiveFieldInfo -> {
-                        val stringVariableName =
-                            nameAllocator.newName("${field.variableName}String")
-                        addStatement(
-                            "final String \$1L =\$Wparser.getAttributeValue(null,\$W\$2S)",
-                            stringVariableName, field.attributeName
-                        )
-                        if (field.isRequired) {
-                            addControlFlow("if (\$1L == null)", stringVariableName) {
-                                addStatement(
-                                    "throw new IllegalArgumentException(\$1S)",
-                                    "Missing attribute \"${field.attributeName}\""
-                                )
-                            }
-                        }
-                        val boxedType = field.type.box()
-                        val parseTypeMethodName = if (field.type.isPrimitive) {
-                            "parse${field.type.toString().capitalize()}"
-                        } else {
-                            "valueOf"
-                        }
-                        if (field.isRequired) {
-                            addStatement(
-                                "final \$1T \$2L =\$W\$3T.\$4L($5L)", field.type, variableName,
-                                boxedType, parseTypeMethodName, stringVariableName
-                            )
-                        } else {
-                            addStatement(
-                                "final \$1T \$2L =\$W$3L != null ?\$W\$4T.\$5L($3L)\$W: null",
-                                field.type, variableName, stringVariableName, boxedType,
-                                parseTypeMethodName
-                            )
-                        }
-                    }
-                    is StringFieldInfo ->
-                        addStatement(
-                            "final String \$1L =\$Wparser.getAttributeValue(null,\$W\$2S)",
-                            variableName, field.attributeName
-                        )
-                    else -> error(field)
-                }
-            }
-            if (tagFields.isNotEmpty()) {
-                for (field in tagFields) {
-                    val variableName = nameAllocator.newName(field.variableName, field)
-                    when (field) {
-                        is ClassFieldInfo ->
-                            addStatement("\$1T \$2L =\$Wnull", field.type, variableName)
-                        is ListFieldInfo ->
-                            addStatement(
-                                "final \$1T \$2L =\$Wnew \$3T<>()", field.type, variableName,
-                                ArrayList::class.java
-                            )
-                        else -> error(field)
-                    }
-                }
-                addStatement("int type")
-                addStatement("int depth")
-                addStatement("int innerDepth = parser.getDepth() + 1")
-                addControlFlow(
-                    "while ((type = parser.next()) != \$1T.END_DOCUMENT\$W"
-                        + "&& ((depth = parser.getDepth()) >= innerDepth || type != \$1T.END_TAG))",
-                    xmlPullParserType
-                ) {
-                    addControlFlow(
-                        "if (depth > innerDepth || type != \$1T.START_TAG)", xmlPullParserType
-                    ) {
-                        addStatement("continue")
-                    }
-                    addControlFlow("switch (parser.getName())") {
-                        for (field in tagFields) {
-                            addControlFlow("case \$1S:", field.tagName) {
-                                val variableName = nameAllocator.get(field)
-                                when (field) {
-                                    is ClassFieldInfo -> {
-                                        addControlFlow("if (\$1L != null)", variableName) {
-                                            addStatement(
-                                                "throw new IllegalArgumentException(\$1S)",
-                                                "Duplicate tag \"${field.tagName}\""
-                                            )
-                                        }
-                                        addStatement(
-                                            "\$1L =\$W\$2L(parser)", variableName,
-                                            field.parseMethodName
-                                        )
-                                        addStatement("break")
-                                    }
-                                    is ListFieldInfo -> {
-                                        val elementNameAllocator = nameAllocator.clone()
-                                        val elementVariableName = elementNameAllocator.newName(
-                                            field.element.xmlName!!.toLowerCamelCase()
-                                        )
-                                        addStatement(
-                                            "final \$1T \$2L =\$W\$3L(parser)", field.element.type,
-                                            elementVariableName, field.element.parseMethodName
-                                        )
-                                        addStatement(
-                                            "\$1L.add(\$2L)", variableName, elementVariableName
-                                        )
-                                        addStatement("break")
-                                    }
-                                    else -> error(field)
-                                }
-                            }
-                        }
-                    }
-                }
-            }
-            for (field in tagFields.filter { it is ClassFieldInfo && it.isRequired }) {
-                addControlFlow("if ($1L == null)", nameAllocator.get(field)) {
-                    addStatement(
-                        "throw new IllegalArgumentException(\$1S)", "Missing tag <${field.tagName}>"
-                    )
-                }
-            }
-            addStatement(
-                classField.fields.joinToString(",\$W", "return new \$1T(", ")") {
-                    nameAllocator.get(it)
-                }, classField.type
-            )
-        }
-        .build()
-
-private val ClassFieldInfo.parseMethodName: String
-    get() = "parse${type.simpleName().toUpperCamelCase()}"
-
-private val xmlSerializerType = ClassName.get("org.xmlpull.v1", "XmlSerializer")
-
-private fun generateWriteMethod(rootField: ClassFieldInfo): MethodSpec =
-    MethodSpec.methodBuilder("write")
-        .apply {
-            val nameAllocator = NameAllocator().apply {
-                newName("outputStream")
-                newName("serializer")
-            }
-            val parameterName = nameAllocator.newName(rootField.variableName)
-            addJavadoc(
-                """
-                    Write${'$'}W{@link $1T}${'$'}Wto${'$'}Wthe${'$'}WXML${'$'}Wfile.
-
-                    @param $2L the${'$'}W{@link ${'$'}1T}${'$'}Wto${'$'}Wpersist
-                """.trimIndent(), rootField.type, parameterName
-            )
-            addAnnotation(nullableType)
-            addModifiers(Modifier.PUBLIC)
-            addParameter(
-                ParameterSpec.builder(rootField.type, parameterName)
-                    .addAnnotation(nonNullType)
-                    .build()
-            )
-            addStatement("\$1T outputStream = null", FileOutputStream::class.java)
-            addControlFlow("try") {
-                addStatement("outputStream = mFile.startWrite()")
-                addStatement(
-                    "final \$1T serializer =\$W\$2T.newSerializer()", xmlSerializerType, xmlType
-                )
-                addStatement(
-                    "serializer.setOutput(outputStream, \$1T.UTF_8.name())",
-                    StandardCharsets::class.java
-                )
-                addStatement(
-                    "serializer.setFeature(\$1S, true)",
-                    "http://xmlpull.org/v1/doc/features.html#indent-output"
-                )
-                addStatement("serializer.startDocument(null, true)")
-                addStatement("serialize(serializer,\$W\$1L)", parameterName)
-                addStatement("serializer.endDocument()")
-                addStatement("mFile.finishWrite(outputStream)")
-                nextControlFlow("catch (Exception e)")
-                addStatement("e.printStackTrace()")
-                addStatement("mFile.failWrite(outputStream)")
-            }
-        }
-        .build()
-
-private fun generateSerializeMethod(rootField: ClassFieldInfo): MethodSpec =
-    MethodSpec.methodBuilder("serialize")
-        .addModifiers(Modifier.PRIVATE, Modifier.STATIC)
-        .addParameter(
-            ParameterSpec.builder(xmlSerializerType, "serializer")
-                .addAnnotation(nonNullType)
-                .build()
-        )
-        .apply {
-            val nameAllocator = NameAllocator().apply { newName("serializer") }
-            val parameterName = nameAllocator.newName(rootField.variableName)
-            addParameter(
-                ParameterSpec.builder(rootField.type, parameterName)
-                    .addAnnotation(nonNullType)
-                    .build()
-            )
-            addException(IOException::class.java)
-            addStatement("serializer.startTag(null, \$1S)", rootField.tagName)
-            addStatement("\$1L(serializer, \$2L)", rootField.serializeMethodName, parameterName)
-            addStatement("serializer.endTag(null, \$1S)", rootField.tagName)
-        }
-        .build()
-
-private fun generateSerializeClassMethod(classField: ClassFieldInfo): MethodSpec =
-    MethodSpec.methodBuilder(classField.serializeMethodName)
-        .addModifiers(Modifier.PRIVATE, Modifier.STATIC)
-        .addParameter(
-            ParameterSpec.builder(xmlSerializerType, "serializer")
-                .addAnnotation(nonNullType)
-                .build()
-        )
-        .apply {
-            val nameAllocator = NameAllocator().apply {
-                newName("serializer")
-                newName("i")
-            }
-            val parameterName = nameAllocator.newName(classField.serializeParameterName)
-            addParameter(
-                ParameterSpec.builder(classField.type, parameterName)
-                    .addAnnotation(nonNullType)
-                    .build()
-            )
-            addException(IOException::class.java)
-            val (attributeFields, tagFields) = classField.fields
-                .partition { it is PrimitiveFieldInfo || it is StringFieldInfo }
-            for (field in attributeFields) {
-                val variableName = "$parameterName.${field.name}"
-                if (!field.isRequired) {
-                    beginControlFlow("if (\$1L != null)", variableName)
-                }
-                when (field) {
-                    is PrimitiveFieldInfo -> {
-                        if (field.isRequired && !field.type.isPrimitive) {
-                            addControlFlow("if (\$1L == null)", variableName) {
-                                addStatement(
-                                    "throw new IllegalArgumentException(\$1S)",
-                                    "Field \"${field.name}\" is null"
-                                )
-                            }
-                        }
-                        val stringVariableName =
-                            nameAllocator.newName("${field.variableName}String")
-                        addStatement(
-                            "final String \$1L =\$WString.valueOf(\$2L)", stringVariableName,
-                            variableName
-                        )
-                        addStatement(
-                            "serializer.attribute(null, \$1S, \$2L)", field.attributeName,
-                            stringVariableName
-                        )
-                    }
-                    is StringFieldInfo -> {
-                        if (field.isRequired) {
-                            addControlFlow("if (\$1L == null)", variableName) {
-                                addStatement(
-                                    "throw new IllegalArgumentException(\$1S)",
-                                    "Field \"${field.name}\" is null"
-                                )
-                            }
-                        }
-                        addStatement(
-                            "serializer.attribute(null, \$1S, \$2L)", field.attributeName,
-                            variableName
-                        )
-                    }
-                    else -> error(field)
-                }
-                if (!field.isRequired) {
-                    endControlFlow()
-                }
-            }
-            for (field in tagFields) {
-                val variableName = "$parameterName.${field.name}"
-                if (field.isRequired) {
-                    addControlFlow("if (\$1L == null)", variableName) {
-                        addStatement(
-                            "throw new IllegalArgumentException(\$1S)",
-                            "Field \"${field.name}\" is null"
-                        )
-                    }
-                }
-                when (field) {
-                    is ClassFieldInfo -> {
-                        addStatement("serializer.startTag(null, \$1S)", field.tagName)
-                        addStatement(
-                            "\$1L(serializer, \$2L)", field.serializeMethodName, variableName
-                        )
-                        addStatement("serializer.endTag(null, \$1S)", field.tagName)
-                    }
-                    is ListFieldInfo -> {
-                        val sizeVariableName = nameAllocator.newName("${field.variableName}Size")
-                        addStatement(
-                            "final int \$1L =\$W\$2L.size()", sizeVariableName, variableName
-                        )
-                        addControlFlow("for (int i = 0;\$Wi < \$1L;\$Wi++)", sizeVariableName) {
-                            val elementNameAllocator = nameAllocator.clone()
-                            val elementVariableName = elementNameAllocator.newName(
-                                field.element.xmlName!!.toLowerCamelCase()
-                            )
-                            addStatement(
-                                "final \$1T \$2L =\$W\$3L.get(i)", field.element.type,
-                                elementVariableName, variableName
-                            )
-                            addControlFlow("if (\$1L == null)", elementVariableName) {
-                                addStatement(
-                                    "throw new IllegalArgumentException(\$1S\$W+ i\$W+ \$2S)",
-                                    "Field element \"${field.name}[", "]\" is null"
-                                )
-                            }
-                            addStatement("serializer.startTag(null, \$1S)", field.element.tagName)
-                            addStatement(
-                                "\$1L(serializer,\$W\$2L)", field.element.serializeMethodName,
-                                elementVariableName
-                            )
-                            addStatement("serializer.endTag(null, \$1S)", field.element.tagName)
-                        }
-                    }
-                    else -> error(field)
-                }
-            }
-        }
-        .build()
-
-private val ClassFieldInfo.serializeMethodName: String
-    get() = "serialize${type.simpleName().toUpperCamelCase()}"
-
-private val ClassFieldInfo.serializeParameterName: String
-    get() = type.simpleName().toLowerCamelCase()
-
-private val FieldInfo.variableName: String
-    get() = name.toLowerCamelCase()
-
-private val FieldInfo.attributeName: String
-    get() {
-        check(this is PrimitiveFieldInfo || this is StringFieldInfo)
-        return xmlNameOrName.toLowerCamelCase()
-    }
-
-private val FieldInfo.tagName: String
-    get() {
-        check(this is ClassFieldInfo || this is ListFieldInfo)
-        return xmlNameOrName.toLowerKebabCase()
-    }
-
-private val FieldInfo.xmlNameOrName: String
-    get() = xmlName ?: name
-
-private fun generateDeleteMethod(): MethodSpec =
-    MethodSpec.methodBuilder("delete")
-        .addJavadoc("Delete the XML file, if any.")
-        .addModifiers(Modifier.PUBLIC)
-        .addStatement("mFile.delete()")
-        .build()
-
-private inline fun MethodSpec.Builder.addControlFlow(
-    controlFlow: String,
-    vararg args: Any,
-    block: MethodSpec.Builder.() -> Unit
-): MethodSpec.Builder {
-    beginControlFlow(controlFlow, *args)
-    block()
-    endControlFlow()
-    return this
-}
diff --git a/tools/xmlpersistence/src/main/kotlin/Main.kt b/tools/xmlpersistence/src/main/kotlin/Main.kt
deleted file mode 100644
index e271f8cb9361..000000000000
--- a/tools/xmlpersistence/src/main/kotlin/Main.kt
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-import java.io.File
-import java.nio.file.Files
-
-fun main(args: Array<String>) {
-    val showUsage = args.isEmpty() || when (args.singleOrNull()) {
-        "-h", "--help" -> true
-        else -> false
-    }
-    if (showUsage) {
-        usage()
-        return
-    }
-
-    val files = args.flatMap {
-        File(it).walk().filter { it.isFile && it.extension == "java" }.map { it.toPath() }
-    }
-    val persistences = parse(files)
-    for (persistence in persistences) {
-        val file = generate(persistence)
-        Files.newBufferedWriter(persistence.path).use {
-            it.write(FILE_HEADER)
-            file.writeTo(it)
-        }
-    }
-}
-
-private fun usage() {
-    println("Usage: xmlpersistence <FILES>")
-}
diff --git a/tools/xmlpersistence/src/main/kotlin/Parser.kt b/tools/xmlpersistence/src/main/kotlin/Parser.kt
deleted file mode 100644
index 3ea12a9aa389..000000000000
--- a/tools/xmlpersistence/src/main/kotlin/Parser.kt
+++ /dev/null
@@ -1,248 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-import com.github.javaparser.JavaParser
-import com.github.javaparser.ParseProblemException
-import com.github.javaparser.ParseResult
-import com.github.javaparser.ParserConfiguration
-import com.github.javaparser.ast.Node
-import com.github.javaparser.ast.body.ClassOrInterfaceDeclaration
-import com.github.javaparser.ast.body.FieldDeclaration
-import com.github.javaparser.ast.body.TypeDeclaration
-import com.github.javaparser.ast.expr.AnnotationExpr
-import com.github.javaparser.ast.expr.Expression
-import com.github.javaparser.ast.expr.NormalAnnotationExpr
-import com.github.javaparser.ast.expr.SingleMemberAnnotationExpr
-import com.github.javaparser.ast.expr.StringLiteralExpr
-import com.github.javaparser.resolution.declarations.ResolvedReferenceTypeDeclaration
-import com.github.javaparser.resolution.types.ResolvedPrimitiveType
-import com.github.javaparser.resolution.types.ResolvedReferenceType
-import com.github.javaparser.symbolsolver.JavaSymbolSolver
-import com.github.javaparser.symbolsolver.javaparsermodel.declarations.JavaParserClassDeclaration
-import com.github.javaparser.symbolsolver.resolution.typesolvers.CombinedTypeSolver
-import com.github.javaparser.symbolsolver.resolution.typesolvers.MemoryTypeSolver
-import com.github.javaparser.symbolsolver.resolution.typesolvers.ReflectionTypeSolver
-import com.squareup.javapoet.ClassName
-import com.squareup.javapoet.ParameterizedTypeName
-import com.squareup.javapoet.TypeName
-import java.nio.file.Path
-import java.util.Optional
-
-class PersistenceInfo(
-    val name: String,
-    val root: ClassFieldInfo,
-    val path: Path
-)
-
-sealed class FieldInfo {
-    abstract val name: String
-    abstract val xmlName: String?
-    abstract val type: TypeName
-    abstract val isRequired: Boolean
-}
-
-class PrimitiveFieldInfo(
-    override val name: String,
-    override val xmlName: String?,
-    override val type: TypeName,
-    override val isRequired: Boolean
-) : FieldInfo()
-
-class StringFieldInfo(
-    override val name: String,
-    override val xmlName: String?,
-    override val isRequired: Boolean
-) : FieldInfo() {
-    override val type: TypeName = ClassName.get(String::class.java)
-}
-
-class ClassFieldInfo(
-    override val name: String,
-    override val xmlName: String?,
-    override val type: ClassName,
-    override val isRequired: Boolean,
-    val fields: List<FieldInfo>
-) : FieldInfo()
-
-class ListFieldInfo(
-    override val name: String,
-    override val xmlName: String?,
-    override val type: ParameterizedTypeName,
-    val element: ClassFieldInfo
-) : FieldInfo() {
-    override val isRequired: Boolean = true
-}
-
-fun parse(files: List<Path>): List<PersistenceInfo> {
-    val typeSolver = CombinedTypeSolver().apply { add(ReflectionTypeSolver()) }
-    val javaParser = JavaParser(ParserConfiguration()
-        .setSymbolResolver(JavaSymbolSolver(typeSolver)))
-    val compilationUnits = files.map { javaParser.parse(it).getOrThrow() }
-    val memoryTypeSolver = MemoryTypeSolver().apply {
-        for (compilationUnit in compilationUnits) {
-            for (typeDeclaration in compilationUnit.getNodesByClass<TypeDeclaration<*>>()) {
-                val name = typeDeclaration.fullyQualifiedName.getOrNull() ?: continue
-                addDeclaration(name, typeDeclaration.resolve())
-            }
-        }
-    }
-    typeSolver.add(memoryTypeSolver)
-    return mutableListOf<PersistenceInfo>().apply {
-        for (compilationUnit in compilationUnits) {
-            val classDeclarations = compilationUnit
-                .getNodesByClass<ClassOrInterfaceDeclaration>()
-                .filter { !it.isInterface && (!it.isNestedType || it.isStatic) }
-            this += classDeclarations.mapNotNull { parsePersistenceInfo(it) }
-        }
-    }
-}
-
-private fun parsePersistenceInfo(classDeclaration: ClassOrInterfaceDeclaration): PersistenceInfo? {
-    val annotation = classDeclaration.getAnnotationByName("XmlPersistence").getOrNull()
-        ?: return null
-    val rootClassName = classDeclaration.nameAsString
-    val name = annotation.getMemberValue("value")?.stringLiteralValue
-        ?: "${rootClassName}Persistence"
-    val rootXmlName = classDeclaration.getAnnotationByName("XmlName").getOrNull()
-        ?.getMemberValue("value")?.stringLiteralValue
-    val root = parseClassFieldInfo(
-        rootXmlName ?: rootClassName, rootXmlName, true, classDeclaration
-    )
-    val path = classDeclaration.findCompilationUnit().get().storage.get().path
-        .resolveSibling("$name.java")
-    return PersistenceInfo(name, root, path)
-}
-
-private fun parseClassFieldInfo(
-    name: String,
-    xmlName: String?,
-    isRequired: Boolean,
-    classDeclaration: ClassOrInterfaceDeclaration
-): ClassFieldInfo {
-    val fields = classDeclaration.fields.filterNot { it.isStatic }.map { parseFieldInfo(it) }
-    val type = classDeclaration.resolve().typeName
-    return ClassFieldInfo(name, xmlName, type, isRequired, fields)
-}
-
-private fun parseFieldInfo(field: FieldDeclaration): FieldInfo {
-    require(field.isPublic && field.isFinal)
-    val variable = field.variables.single()
-    val name = variable.nameAsString
-    val annotations = field.annotations + variable.type.annotations
-    val annotation = annotations.getByName("XmlName")
-    val xmlName = annotation?.getMemberValue("value")?.stringLiteralValue
-    val isRequired = annotations.getByName("NonNull") != null
-    return when (val type = variable.type.resolve()) {
-        is ResolvedPrimitiveType -> {
-            val primitiveType = type.typeName
-            PrimitiveFieldInfo(name, xmlName, primitiveType, true)
-        }
-        is ResolvedReferenceType -> {
-            when (type.qualifiedName) {
-                Boolean::class.javaObjectType.name, Byte::class.javaObjectType.name,
-                Short::class.javaObjectType.name, Char::class.javaObjectType.name,
-                Integer::class.javaObjectType.name, Long::class.javaObjectType.name,
-                Float::class.javaObjectType.name, Double::class.javaObjectType.name ->
-                    PrimitiveFieldInfo(name, xmlName, type.typeName, isRequired)
-                String::class.java.name -> StringFieldInfo(name, xmlName, isRequired)
-                List::class.java.name -> {
-                    requireNotNull(xmlName)
-                    val elementType = type.typeParametersValues().single()
-                    require(elementType is ResolvedReferenceType)
-                    val listType = ParameterizedTypeName.get(
-                        ClassName.get(List::class.java), elementType.typeName
-                    )
-                    val element = parseClassFieldInfo(
-                        "(element)", xmlName, true, elementType.classDeclaration
-                    )
-                    ListFieldInfo(name, xmlName, listType, element)
-                }
-                else -> parseClassFieldInfo(name, xmlName, isRequired, type.classDeclaration)
-            }
-        }
-        else -> error(type)
-    }
-}
-
-private fun <T> ParseResult<T>.getOrThrow(): T =
-    if (isSuccessful) {
-        result.get()
-    } else {
-        throw ParseProblemException(problems)
-    }
-
-private inline fun <reified T : Node> Node.getNodesByClass(): List<T> =
-    getNodesByClass(T::class.java)
-
-private fun <T : Node> Node.getNodesByClass(klass: Class<T>): List<T> = mutableListOf<T>().apply {
-    if (klass.isInstance(this@getNodesByClass)) {
-        this += klass.cast(this@getNodesByClass)
-    }
-    for (childNode in childNodes) {
-        this += childNode.getNodesByClass(klass)
-    }
-}
-
-private fun <T> Optional<T>.getOrNull(): T? = orElse(null)
-
-private fun List<AnnotationExpr>.getByName(name: String): AnnotationExpr? =
-    find { it.name.identifier == name }
-
-private fun AnnotationExpr.getMemberValue(name: String): Expression? =
-    when (this) {
-        is NormalAnnotationExpr -> pairs.find { it.nameAsString == name }?.value
-        is SingleMemberAnnotationExpr -> if (name == "value") memberValue else null
-        else -> null
-    }
-
-private val Expression.stringLiteralValue: String
-    get() {
-        require(this is StringLiteralExpr)
-        return value
-    }
-
-private val ResolvedReferenceType.classDeclaration: ClassOrInterfaceDeclaration
-    get() {
-        val resolvedClassDeclaration = typeDeclaration
-        require(resolvedClassDeclaration is JavaParserClassDeclaration)
-        return resolvedClassDeclaration.wrappedNode
-    }
-
-private val ResolvedPrimitiveType.typeName: TypeName
-    get() =
-        when (this) {
-            ResolvedPrimitiveType.BOOLEAN -> TypeName.BOOLEAN
-            ResolvedPrimitiveType.BYTE -> TypeName.BYTE
-            ResolvedPrimitiveType.SHORT -> TypeName.SHORT
-            ResolvedPrimitiveType.CHAR -> TypeName.CHAR
-            ResolvedPrimitiveType.INT -> TypeName.INT
-            ResolvedPrimitiveType.LONG -> TypeName.LONG
-            ResolvedPrimitiveType.FLOAT -> TypeName.FLOAT
-            ResolvedPrimitiveType.DOUBLE -> TypeName.DOUBLE
-        }
-
-// This doesn't support type parameters.
-private val ResolvedReferenceType.typeName: TypeName
-    get() = typeDeclaration.typeName
-
-private val ResolvedReferenceTypeDeclaration.typeName: ClassName
-    get() {
-        val packageName = packageName
-        val classNames = className.split(".")
-        val topLevelClassName = classNames.first()
-        val nestedClassNames = classNames.drop(1)
-        return ClassName.get(packageName, topLevelClassName, *nestedClassNames.toTypedArray())
-    }
diff --git a/tools/xmlpersistence/src/main/kotlin/StringCaseExtensions.kt b/tools/xmlpersistence/src/main/kotlin/StringCaseExtensions.kt
deleted file mode 100644
index b4bdbba7170b..000000000000
--- a/tools/xmlpersistence/src/main/kotlin/StringCaseExtensions.kt
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-import java.util.Locale
-
-private val camelHumpBoundary = Regex(
-    "-"
-    + "|_"
-    + "|(?<=[0-9])(?=[^0-9])"
-    + "|(?<=[A-Z])(?=[^A-Za-z]|[A-Z][a-z])"
-    + "|(?<=[a-z])(?=[^a-z])"
-)
-
-private fun String.toCamelHumps(): List<String> = split(camelHumpBoundary)
-
-fun String.toUpperCamelCase(): String =
-    toCamelHumps().joinToString("") { it.toLowerCase(Locale.ROOT).capitalize(Locale.ROOT) }
-
-fun String.toLowerCamelCase(): String = toUpperCamelCase().decapitalize(Locale.ROOT)
-
-fun String.toUpperKebabCase(): String =
-    toCamelHumps().joinToString("-") { it.toUpperCase(Locale.ROOT) }
-
-fun String.toLowerKebabCase(): String =
-    toCamelHumps().joinToString("-") { it.toLowerCase(Locale.ROOT) }
-
-fun String.toUpperSnakeCase(): String =
-    toCamelHumps().joinToString("_") { it.toUpperCase(Locale.ROOT) }
-
-fun String.toLowerSnakeCase(): String =
-    toCamelHumps().joinToString("_") { it.toLowerCase(Locale.ROOT) }