1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package androidx.room.processor 17 18 import androidx.room.vo.Entity 19 import androidx.room.vo.ShortcutQueryParameter 20 import com.google.auto.common.MoreElements 21 import com.google.auto.common.MoreTypes 22 import javax.lang.model.element.AnnotationMirror 23 import javax.lang.model.element.ExecutableElement 24 import javax.lang.model.type.DeclaredType 25 import javax.lang.model.type.TypeMirror 26 import kotlin.reflect.KClass 27 28 /** 29 * Common functionality for shortcut method processors 30 */ 31 class ShortcutMethodProcessor(baseContext: Context, 32 val containing: DeclaredType, 33 val executableElement: ExecutableElement) { 34 val context = baseContext.fork(executableElement) 35 private val asMember = context.processingEnv.typeUtils.asMemberOf(containing, executableElement) 36 private val executableType = MoreTypes.asExecutable(asMember) 37 38 fun extractAnnotation(klass: KClass<out Annotation>, 39 errorMsg: String): AnnotationMirror? { 40 val annotation = MoreElements.getAnnotationMirror(executableElement, 41 klass.java).orNull() 42 context.checker.check(annotation != null, executableElement, errorMsg) 43 return annotation 44 } 45 46 fun extractReturnType(): TypeMirror { 47 return executableType.returnType 48 } 49 50 fun extractParams( 51 missingParamError: String 52 ): Pair<Map<String, Entity>, List<ShortcutQueryParameter>> { 53 val params = executableElement.parameters 54 .map { ShortcutParameterProcessor( 55 baseContext = context, 56 containing = containing, 57 element = it).process() } 58 context.checker.check(params.isNotEmpty(), executableElement, missingParamError) 59 val entities = params 60 .filter { it.entityType != null } 61 .associateBy({ it.name }, { 62 EntityProcessor( 63 baseContext = context, 64 element = MoreTypes.asTypeElement(it.entityType)).process() 65 }) 66 return Pair(entities, params) 67 } 68 } 69
