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Merge pull request #527 from flynndi/dev
Refactor the Repository implementation class bytecode
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deployment/src/main/java/io/quarkiverse/jimmer/deployment/bytecode/ClassCodeWriter.java
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| @@ -0,0 +1,267 @@ | ||
| package io.quarkiverse.jimmer.deployment.bytecode; | ||
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| import java.lang.reflect.Method; | ||
| import java.lang.reflect.Modifier; | ||
| import java.util.ArrayList; | ||
| import java.util.HashMap; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.stream.Collectors; | ||
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| import jakarta.inject.Singleton; | ||
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| import org.babyfish.jimmer.impl.util.Classes; | ||
| import org.objectweb.asm.*; | ||
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| import io.quarkiverse.jimmer.runtime.repository.parser.Context; | ||
| import io.quarkus.agroal.DataSource; | ||
| import io.quarkus.arc.Unremovable; | ||
| import io.quarkus.datasource.common.runtime.DataSourceUtil; | ||
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| abstract class ClassCodeWriter implements Constants { | ||
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| public static final String ASM_IMPL_SUFFIX = "AsmImpl"; | ||
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| final RepositoryMetadata metadata; | ||
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| private final String interfaceInternalName; | ||
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| private final String implInternalName; | ||
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| private final String superInternalName; | ||
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| private final String entityInternalName; | ||
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| private final String sqlClientDescriptor; | ||
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| protected final List<MethodCodeWriter> methodCodeWriters; | ||
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| protected final List<MethodCodeWriter> autoGenMethodCodeWriters; | ||
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| private ClassWriter cw; | ||
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| Context ctx = new Context(); | ||
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| protected ClassCodeWriter(RepositoryMetadata metadata, Class<?> sqlClientType, Class<?> superType) { | ||
| this.metadata = metadata; | ||
| this.interfaceInternalName = Type.getInternalName(metadata.getRepositoryInterface()); | ||
| this.implInternalName = interfaceInternalName + ASM_IMPL_SUFFIX; | ||
| this.superInternalName = Type.getInternalName(superType); | ||
| this.entityInternalName = Type.getInternalName(metadata.getDomainType()); | ||
| this.sqlClientDescriptor = Type.getDescriptor(sqlClientType); | ||
| Class<?> repositoryInterface = metadata.getRepositoryInterface(); | ||
| List<MethodCodeWriter> list = new ArrayList<>(); | ||
| Map<String, Integer> methodNameCountMap = new HashMap<>(); | ||
| for (Method method : repositoryInterface.getMethods()) { | ||
| if (!Modifier.isStatic(method.getModifiers()) && | ||
| !method.getDeclaringClass().isAssignableFrom(superType)) { | ||
| Integer count = methodNameCountMap.get(method.getName()); | ||
| if (count == null) { | ||
| list.add(createMethodCodeWriter(method, method.getName())); | ||
| methodNameCountMap.put(method.getName(), 1); | ||
| } else { | ||
| ++count; | ||
| list.add(createMethodCodeWriter(method, method.getName() + ":" + count)); | ||
| methodNameCountMap.put(method.getName(), count); | ||
| } | ||
| } | ||
| } | ||
| this.methodCodeWriters = list; | ||
| this.autoGenMethodCodeWriters = list | ||
| .stream() | ||
| .filter(it -> !it.method.isDefault() && it.getDefaultImplMethod() == null) | ||
| .collect(Collectors.toList()); | ||
| } | ||
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| public RepositoryMetadata getMetadata() { | ||
| return metadata; | ||
| } | ||
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| public String getInterfaceInternalName() { | ||
| return interfaceInternalName; | ||
| } | ||
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| public String getImplInternalName() { | ||
| return implInternalName; | ||
| } | ||
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| public String getEntityInternalName() { | ||
| return entityInternalName; | ||
| } | ||
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| public ClassWriter getClassVisitor() { | ||
| return cw; | ||
| } | ||
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| public byte[] write() { | ||
| cw = new ClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES); | ||
| cw.visit( | ||
| Opcodes.V1_8, | ||
| Opcodes.ACC_PUBLIC, | ||
| implInternalName, | ||
| null, | ||
| superInternalName, | ||
| new String[] { interfaceInternalName }); | ||
| AnnotationVisitor av = cw.visitAnnotation(Type.getDescriptor(Singleton.class), true); | ||
| av.visitEnd(); | ||
| av = cw.visitAnnotation(Type.getDescriptor(Unremovable.class), true); | ||
| av.visitEnd(); | ||
| if (!metadata.getDataSourceName().equals(DataSourceUtil.DEFAULT_DATASOURCE_NAME)) { | ||
| av = cw.visitAnnotation(Type.getDescriptor(DataSource.class), true); | ||
| av.visit("value", metadata.getDataSourceName()); | ||
| av.visitEnd(); | ||
| } | ||
| writeInit(); | ||
| if (!autoGenMethodCodeWriters.isEmpty()) { | ||
| writeStaticFields(); | ||
| writeClinit(); | ||
| } | ||
| for (MethodCodeWriter writer : methodCodeWriters) { | ||
| writer.write(); | ||
| } | ||
| cw.visitEnd(); | ||
| return cw.toByteArray(); | ||
| } | ||
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| private void writeInit() { | ||
| MethodVisitor mv = cw.visitMethod( | ||
| Opcodes.ACC_PUBLIC, | ||
| "<init>", | ||
| '(' + sqlClientDescriptor + ")V", | ||
| null, | ||
| null); | ||
| // Add @Inject annotation | ||
| AnnotationVisitor av = mv.visitAnnotation(Type.getDescriptor(jakarta.inject.Inject.class), true); | ||
| av.visitEnd(); | ||
| if (!metadata.getDataSourceName().equals(DataSourceUtil.DEFAULT_DATASOURCE_NAME)) { | ||
| av = mv.visitParameterAnnotation(0, Type.getDescriptor(DataSource.class), true); | ||
| av.visit("value", metadata.getDataSourceName()); | ||
| av.visitEnd(); | ||
| } | ||
| mv.visitCode(); | ||
| mv.visitVarInsn(Opcodes.ALOAD, 0); | ||
| mv.visitVarInsn(Opcodes.ALOAD, 1); | ||
| mv.visitLdcInsn(Type.getType(metadata.getDomainType())); | ||
| mv.visitMethodInsn( | ||
| Opcodes.INVOKESPECIAL, | ||
| superInternalName, | ||
| "<init>", | ||
| "(" + sqlClientDescriptor + "Ljava/lang/Class;)V", | ||
| false); | ||
| mv.visitInsn(Opcodes.RETURN); | ||
| mv.visitMaxs(0, 0); | ||
| mv.visitEnd(); | ||
|
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| // No-args constructor | ||
| mv = cw.visitMethod( | ||
| Opcodes.ACC_PUBLIC, | ||
| "<init>", | ||
| "()V", | ||
| null, | ||
| null); | ||
| mv.visitCode(); | ||
| mv.visitVarInsn(Opcodes.ALOAD, 0); | ||
| mv.visitInsn(Opcodes.ACONST_NULL); | ||
| mv.visitMethodInsn( | ||
| Opcodes.INVOKESPECIAL, | ||
| superInternalName, | ||
| "<init>", | ||
| '(' + sqlClientDescriptor + ")V", | ||
| false); | ||
| mv.visitInsn(Opcodes.RETURN); | ||
| mv.visitMaxs(0, 0); | ||
| mv.visitEnd(); | ||
| } | ||
|
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| private void writeStaticFields() { | ||
| for (MethodCodeWriter writer : autoGenMethodCodeWriters) { | ||
| cw.visitField( | ||
| Opcodes.ACC_PRIVATE | Opcodes.ACC_STATIC | Opcodes.ACC_FINAL, | ||
| writer.queryMethodFieldName(), | ||
| QUERY_METHOD_DESCRIPTOR, | ||
| null, | ||
| null).visitEnd(); | ||
| } | ||
| } | ||
|
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| private void writeClinit() { | ||
| MethodVisitor mv = cw.visitMethod( | ||
| Opcodes.ACC_STATIC, | ||
| "<clinit>", | ||
| "()V", | ||
| null, | ||
| null); | ||
| mv.visitCode(); | ||
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| mv.visitTypeInsn(Opcodes.NEW, CONTEXT_INTERNAL_NAME); | ||
| mv.visitInsn(Opcodes.DUP); | ||
| mv.visitMethodInsn( | ||
| Opcodes.INVOKESPECIAL, | ||
| CONTEXT_INTERNAL_NAME, | ||
| "<init>", | ||
| "()V", | ||
| false); | ||
| mv.visitVarInsn(Opcodes.ASTORE, 0); | ||
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| mv.visitLdcInsn(Type.getType(metadata.getDomainType())); | ||
| mv.visitMethodInsn( | ||
| Opcodes.INVOKESTATIC, | ||
| IMMUTABLE_TYPE_INTERNAL_NAME, | ||
| "get", | ||
| "(Ljava/lang/Class;)" + IMMUTABLE_TYPE_DESCRIPTOR, | ||
| true); | ||
| mv.visitVarInsn(Opcodes.ASTORE, 1); | ||
|
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| for (MethodCodeWriter writer : autoGenMethodCodeWriters) { | ||
| mv.visitVarInsn(Opcodes.ALOAD, 0); | ||
| mv.visitVarInsn(Opcodes.ALOAD, 1); | ||
| mv.visitLdcInsn(Type.getType(metadata.getRepositoryInterface())); | ||
| mv.visitLdcInsn(writer.method.getName()); | ||
| mv.visitLdcInsn(writer.method.getParameterTypes().length); | ||
| mv.visitTypeInsn(Opcodes.ANEWARRAY, "java/lang/Class"); | ||
| int index = 0; | ||
| for (Class<?> clazz : writer.method.getParameterTypes()) { | ||
| mv.visitInsn(Opcodes.DUP); | ||
| mv.visitLdcInsn(index++); | ||
| if (clazz.isPrimitive()) { | ||
| mv.visitFieldInsn( | ||
| Opcodes.GETSTATIC, | ||
| Type.getInternalName(Classes.boxTypeOf(clazz)), | ||
| "TYPE", | ||
| "Ljava/lang/Class;"); | ||
| } else { | ||
| mv.visitLdcInsn(Type.getType(clazz)); | ||
| } | ||
| mv.visitInsn(Opcodes.AASTORE); | ||
| } | ||
| mv.visitMethodInsn( | ||
| Opcodes.INVOKEVIRTUAL, | ||
| "java/lang/Class", | ||
| "getMethod", | ||
| "(Ljava/lang/String;[Ljava/lang/Class;)" + METHOD_DESCRIPTOR, | ||
| false); | ||
| mv.visitMethodInsn( | ||
| Opcodes.INVOKESTATIC, | ||
| QUERY_METHOD_INTERNAL_NAME, | ||
| "of", | ||
| "(" + CONTEXT_DESCRIPTOR + IMMUTABLE_TYPE_DESCRIPTOR + METHOD_DESCRIPTOR + ")" + | ||
| QUERY_METHOD_DESCRIPTOR, | ||
| false); | ||
| mv.visitFieldInsn( | ||
| Opcodes.PUTSTATIC, | ||
| implInternalName, | ||
| writer.queryMethodFieldName(), | ||
| QUERY_METHOD_DESCRIPTOR); | ||
| } | ||
| mv.visitInsn(Opcodes.RETURN); | ||
|
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| mv.visitMaxs(0, 0); | ||
| mv.visitEnd(); | ||
| } | ||
|
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| protected abstract MethodCodeWriter createMethodCodeWriter(Method method, String id); | ||
|
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| public static String implementationClassName(Class<?> itf) { | ||
| return itf.getName() + ASM_IMPL_SUFFIX; | ||
| } | ||
| } |
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