public static byte[] createTargetSetterFactory(String factoryName, String className, Type target)
throws Exception {
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
MethodVisitor mv;
String factoryType = AsmUtils.toType(factoryName);
String classType = AsmUtils.toType(className);
String targetType = AsmUtils.toType(target);
cw.visit(
V1_6,
ACC_FINAL + ACC_PUBLIC + ACC_SUPER,
factoryType,
"L" + CELL_HANDLER_FACTORY_TYPE + "<L" + targetType + ";>;",
CELL_HANDLER_FACTORY_TYPE,
null);
{
mv =
cw.visitMethod(
ACC_PUBLIC,
"<init>",
"("
+ AsmUtils.toDeclaredLType(Instantiator.class)
+ AsmUtils.toDeclaredLType(CsvColumnKey[].class)
+ AsmUtils.toDeclaredLType(ParsingContextFactory.class)
+ AsmUtils.toDeclaredLType(FieldMapperErrorHandler.class)
+ ")V",
"("
+ "L"
+ AsmUtils.toType(Instantiator.class)
+ "<L"
+ AsmUtils.toType(CsvMapperCellHandler.class)
+ "<L"
+ targetType
+ ";>;L"
+ targetType
+ ";>;"
+ AsmUtils.toDeclaredLType(CsvColumnKey[].class)
+ AsmUtils.toDeclaredLType(ParsingContextFactory.class)
+ "L"
+ AsmUtils.toType(FieldMapperErrorHandler.class)
+ "<L"
+ AsmUtils.toType(CsvColumnKey.class)
+ ";>;"
+ ")V",
null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 1);
mv.visitVarInsn(ALOAD, 2);
mv.visitVarInsn(ALOAD, 3);
mv.visitVarInsn(ALOAD, 4);
mv.visitMethodInsn(
INVOKESPECIAL,
CELL_HANDLER_FACTORY_TYPE,
"<init>",
"("
+ AsmUtils.toDeclaredLType(Instantiator.class)
+ AsmUtils.toDeclaredLType(CsvColumnKey[].class)
+ AsmUtils.toDeclaredLType(ParsingContextFactory.class)
+ AsmUtils.toDeclaredLType(FieldMapperErrorHandler.class)
+ ")V",
false);
mv.visitInsn(RETURN);
mv.visitMaxs(5, 5);
mv.visitEnd();
}
{
mv =
cw.visitMethod(
ACC_PUBLIC,
"newInstance",
"("
+ AsmUtils.toDeclaredLType(DelayedCellSetter[].class)
+ AsmUtils.toDeclaredLType(CellSetter[].class)
+ ")"
+ AsmUtils.toDeclaredLType(CsvMapperCellHandler.class),
"("
+ "[L"
+ DELAYED_CELL_SETTER_TYPE
+ "<L"
+ targetType
+ ";*>;"
+ "[L"
+ CELL_SETTER_TYPE
+ "<L"
+ targetType
+ ";>;"
+ ")"
+ "L"
+ AsmUtils.toType(CsvMapperCellHandler.class)
+ "<L"
+ targetType
+ ";>;",
null);
mv.visitCode();
mv.visitTypeInsn(NEW, classType);
mv.visitInsn(DUP);
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(
GETFIELD, factoryType, "instantiator", AsmUtils.toDeclaredLType(Instantiator.class));
mv.visitVarInsn(ALOAD, 1);
mv.visitVarInsn(ALOAD, 2);
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(
GETFIELD, factoryType, "keys", AsmUtils.toDeclaredLType(CsvColumnKey[].class));
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(
GETFIELD,
factoryType,
"parsingContextFactory",
AsmUtils.toDeclaredLType(ParsingContextFactory.class));
mv.visitMethodInsn(
INVOKEVIRTUAL,
AsmUtils.toType(ParsingContextFactory.class),
"newContext",
"()" + AsmUtils.toDeclaredLType(ParsingContext.class),
false);
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(
GETFIELD,
factoryType,
"fieldErrorHandler",
AsmUtils.toDeclaredLType(FieldMapperErrorHandler.class));
mv.visitMethodInsn(
INVOKESPECIAL,
classType,
"<init>",
"("
+ AsmUtils.toDeclaredLType(Instantiator.class)
+ AsmUtils.toDeclaredLType(DelayedCellSetter[].class)
+ AsmUtils.toDeclaredLType(CellSetter[].class)
+ AsmUtils.toDeclaredLType(CsvColumnKey[].class)
+ AsmUtils.toDeclaredLType(ParsingContext.class)
+ AsmUtils.toDeclaredLType(FieldMapperErrorHandler.class)
+ ")V",
false);
mv.visitInsn(ARETURN);
mv.visitMaxs(8, 3);
mv.visitEnd();
}
cw.visitEnd();
return cw.toByteArray();
}
private static <T> void appendInit(
DelayedCellSetterFactory<T, ?>[] delayedCellSetters,
CellSetter<T>[] setters,
ClassWriter cw,
String targetType,
String classType,
int maxSize) {
MethodVisitor mv; // constructor
{
mv =
cw.visitMethod(
ACC_PUBLIC,
"<init>",
"("
+ AsmUtils.toDeclaredLType(Instantiator.class)
+ AsmUtils.toDeclaredLType(DelayedCellSetter[].class)
+ AsmUtils.toDeclaredLType(CellSetter[].class)
+ AsmUtils.toDeclaredLType(CsvColumnKey[].class)
+ AsmUtils.toDeclaredLType(ParsingContext.class)
+ AsmUtils.toDeclaredLType(FieldMapperErrorHandler.class)
+ ")V",
"("
+ "L"
+ AsmUtils.toType(Instantiator.class)
+ "<L"
+ AsmUtils.toType(CsvMapperCellHandler.class)
+ "<L"
+ targetType
+ ";>;L"
+ targetType
+ ";>;"
+ "[L"
+ DELAYED_CELL_SETTER_TYPE
+ "<L"
+ targetType
+ ";*>;"
+ "[L"
+ CELL_SETTER_TYPE
+ "<L"
+ targetType
+ ";>;"
+ AsmUtils.toDeclaredLType(CsvColumnKey[].class)
+ AsmUtils.toDeclaredLType(ParsingContext.class)
+ "L"
+ AsmUtils.toType(FieldMapperErrorHandler.class)
+ "<L"
+ AsmUtils.toType(CsvColumnKey.class)
+ ";>;"
+ ")V",
null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 1);
mv.visitVarInsn(ALOAD, 4);
mv.visitVarInsn(ALOAD, 2);
mv.visitInsn(ARRAYLENGTH);
mv.visitVarInsn(ALOAD, 3);
mv.visitInsn(ARRAYLENGTH);
mv.visitVarInsn(ALOAD, 5);
mv.visitVarInsn(ALOAD, 6);
mv.visitMethodInsn(
INVOKESPECIAL,
CSV_CELL_MAPPER_TYPE,
"<init>",
"("
+ AsmUtils.toDeclaredLType(Instantiator.class)
+ AsmUtils.toDeclaredLType(CsvColumnKey[].class)
+ "I"
+ "I"
+ AsmUtils.toDeclaredLType(ParsingContext.class)
+ AsmUtils.toDeclaredLType(FieldMapperErrorHandler.class)
+ ")V",
false);
ShardingHelper.shard(
delayedCellSetters.length,
maxSize,
new ShardingHelper.ShardCallBack() {
@Override
public void leafDispatch(String suffix, int start, int end) {}
@Override
public void nodeDispatch(String suffix, int divide, int start, int end) {}
});
for (int i = 0; i < delayedCellSetters.length; i++) {
if (delayedCellSetters[i] != null) {
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 2);
AsmUtils.addIndex(mv, i);
mv.visitInsn(AALOAD);
mv.visitFieldInsn(
PUTFIELD,
classType,
"delayedCellSetter" + i,
AsmUtils.toDeclaredLType(DELAYED_CELL_SETTER_TYPE));
}
}
for (int i = 0; i < setters.length; i++) {
if (setters[i] != null) {
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 3);
AsmUtils.addIndex(mv, i);
mv.visitInsn(AALOAD);
mv.visitFieldInsn(
PUTFIELD, classType, "setter" + i, AsmUtils.toDeclaredLType(CELL_SETTER_TYPE));
}
}
mv.visitInsn(RETURN);
mv.visitMaxs(7, 7);
mv.visitEnd();
}
}
private static <T> void appendPeekDelayedCellSetterValue(
final DelayedCellSetterFactory<T, ?>[] delayedCellSetters,
final ClassWriter cw,
final String classType,
final int maxMethodSize) {
ShardingHelper.shard(
delayedCellSetters.length,
maxMethodSize,
new AbstractMethodDispatchShardCallBack<T>(cw, classType, maxMethodSize) {
@Override
protected void appendLeafSwitch(MethodVisitor mv, int start, int end) {
Label defaultLabel = new Label();
Label[] labels = newLabels(end - start);
mv.visitTableSwitchInsn(start, end - 1, defaultLabel, labels);
for (int i = start; i < end; i++) {
mv.visitLabel(labels[i - start]);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
if (delayedCellSetters[i] != null) {
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(
GETFIELD,
classType,
"delayedCellSetter" + i,
"L" + DELAYED_CELL_SETTER_TYPE + ";");
mv.visitMethodInsn(
INVOKEINTERFACE,
DELAYED_CELL_SETTER_TYPE,
"peekValue",
"()Ljava/lang/Object;",
true);
mv.visitInsn(ARETURN);
} else if (i < (delayedCellSetters.length - 1)) {
mv.visitInsn(ACONST_NULL);
mv.visitInsn(ARETURN);
}
}
mv.visitLabel(defaultLabel);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
}
@Override
protected int maxArgIndex() {
return 1;
}
@Override
protected void loadArguments(MethodVisitor mv) {
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ILOAD, 1);
}
@Override
protected int argIndex() {
return 1;
}
@Override
protected String name() {
return "_peekDelayedCellSetterValue";
}
@Override
protected String signature() {
return "(I)Ljava/lang/Object;";
}
});
MethodVisitor mv;
mv =
cw.visitMethod(
ACC_PUBLIC,
"peekDelayedCellSetterValue",
"(L" + AsmUtils.toType(CsvColumnKey.class) + ";)Ljava/lang/Object;",
null,
null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 1);
mv.visitMethodInsn(
INVOKEVIRTUAL, AsmUtils.toType(CsvColumnKey.class), "getIndex", "()I", false);
mv.visitVarInsn(ISTORE, 2);
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ILOAD, 2);
mv.visitMethodInsn(
INVOKESPECIAL, classType, "_peekDelayedCellSetterValue", "(I)Ljava/lang/Object;", false);
mv.visitInsn(ARETURN);
mv.visitMaxs(1, 2);
mv.visitEnd();
}
public static <T> byte[] createTargetSetterClass(
String className,
DelayedCellSetterFactory<T, ?>[] delayedCellSetters,
CellSetter<T>[] setters,
Type type,
boolean ignoreException,
int maxMethodSize)
throws Exception {
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
FieldVisitor fv;
MethodVisitor mv;
final String targetType = AsmUtils.toType(type);
final String classType = AsmUtils.toType(className);
cw.visit(
V1_6,
ACC_FINAL + ACC_PUBLIC + ACC_SUPER,
classType,
"L" + CSV_CELL_MAPPER_TYPE + "<L" + targetType + ";>;",
CSV_CELL_MAPPER_TYPE,
null);
// declare fields
for (int i = 0; i < delayedCellSetters.length; i++) {
if (delayedCellSetters[i] != null) {
fv =
cw.visitField(
ACC_PROTECTED + ACC_FINAL,
"delayedCellSetter" + i,
AsmUtils.toDeclaredLType(DELAYED_CELL_SETTER_TYPE),
"L" + DELAYED_CELL_SETTER_TYPE + "<L" + targetType + ";*>;",
null);
fv.visitEnd();
}
}
for (int i = 0; i < setters.length; i++) {
if (setters[i] != null) {
fv =
cw.visitField(
ACC_PROTECTED + ACC_FINAL,
"setter" + i,
AsmUtils.toDeclaredLType(CELL_SETTER_TYPE),
"L" + CELL_SETTER_TYPE + "<L" + targetType + ";>;",
null);
fv.visitEnd();
}
}
appendInit(delayedCellSetters, setters, cw, targetType, classType, maxMethodSize);
appendDelayedCellValue(delayedCellSetters, ignoreException, cw, classType);
append_delayedCellValue(delayedCellSetters, cw, classType, maxMethodSize);
appendCellValue(setters, ignoreException, cw, classType);
append_cellValue(delayedCellSetters, setters, cw, classType, maxMethodSize);
appendApplyDelayedSetter(delayedCellSetters, ignoreException, cw, classType, maxMethodSize);
appendApplyDelayedCellSetterN(delayedCellSetters, cw, classType);
appendGetDelayedCellSetter(delayedCellSetters, cw, targetType, classType, maxMethodSize);
appendPeekDelayedCellSetterValue(delayedCellSetters, cw, classType, maxMethodSize);
cw.visitEnd();
return AsmUtils.writeClassToFile(className, cw.toByteArray());
}
@SuppressWarnings("SpellCheckingInspection")
public class CsvMapperCellHandlerBuilder {
public static final String DELAYED_CELL_SETTER_TYPE = AsmUtils.toType(DelayedCellSetter.class);
public static final String CELL_SETTER_TYPE = AsmUtils.toType(CellSetter.class);
public static final String CSV_CELL_MAPPER_TYPE = AsmUtils.toType(CsvMapperCellHandler.class);
public static final String CELL_HANDLER_FACTORY_TYPE =
AsmUtils.toType(CsvMapperCellHandlerFactory.class);
public static <T> byte[] createTargetSetterClass(
String className,
DelayedCellSetterFactory<T, ?>[] delayedCellSetters,
CellSetter<T>[] setters,
Type type,
boolean ignoreException,
int maxMethodSize)
throws Exception {
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
FieldVisitor fv;
MethodVisitor mv;
final String targetType = AsmUtils.toType(type);
final String classType = AsmUtils.toType(className);
cw.visit(
V1_6,
ACC_FINAL + ACC_PUBLIC + ACC_SUPER,
classType,
"L" + CSV_CELL_MAPPER_TYPE + "<L" + targetType + ";>;",
CSV_CELL_MAPPER_TYPE,
null);
// declare fields
for (int i = 0; i < delayedCellSetters.length; i++) {
if (delayedCellSetters[i] != null) {
fv =
cw.visitField(
ACC_PROTECTED + ACC_FINAL,
"delayedCellSetter" + i,
AsmUtils.toDeclaredLType(DELAYED_CELL_SETTER_TYPE),
"L" + DELAYED_CELL_SETTER_TYPE + "<L" + targetType + ";*>;",
null);
fv.visitEnd();
}
}
for (int i = 0; i < setters.length; i++) {
if (setters[i] != null) {
fv =
cw.visitField(
ACC_PROTECTED + ACC_FINAL,
"setter" + i,
AsmUtils.toDeclaredLType(CELL_SETTER_TYPE),
"L" + CELL_SETTER_TYPE + "<L" + targetType + ";>;",
null);
fv.visitEnd();
}
}
appendInit(delayedCellSetters, setters, cw, targetType, classType, maxMethodSize);
appendDelayedCellValue(delayedCellSetters, ignoreException, cw, classType);
append_delayedCellValue(delayedCellSetters, cw, classType, maxMethodSize);
appendCellValue(setters, ignoreException, cw, classType);
append_cellValue(delayedCellSetters, setters, cw, classType, maxMethodSize);
appendApplyDelayedSetter(delayedCellSetters, ignoreException, cw, classType, maxMethodSize);
appendApplyDelayedCellSetterN(delayedCellSetters, cw, classType);
appendGetDelayedCellSetter(delayedCellSetters, cw, targetType, classType, maxMethodSize);
appendPeekDelayedCellSetterValue(delayedCellSetters, cw, classType, maxMethodSize);
cw.visitEnd();
return AsmUtils.writeClassToFile(className, cw.toByteArray());
}
private static <T> void append_cellValue(
final DelayedCellSetterFactory<T, ?>[] delayedCellSetters,
final CellSetter<T>[] setters,
ClassWriter cw,
final String classType,
final int maxMethodSize) {
ShardingHelper.shard(
setters.length,
maxMethodSize,
new AbstractMethodDispatchShardCallBack<T>(cw, classType, maxMethodSize) {
@Override
protected void appendLeafSwitch(MethodVisitor mv, int start, int end) {
Label defaultLabel = new Label();
Label[] labels = newLabels(end - start);
mv.visitTableSwitchInsn(
delayedCellSetters.length + start,
delayedCellSetters.length + end - 1,
defaultLabel,
labels);
for (int i = start; i < end; i++) {
mv.visitLabel(labels[i - start]);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
if (setters[i] != null) {
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, classType, "setter" + i, "L" + CELL_SETTER_TYPE + ";");
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, classType, "currentInstance", "Ljava/lang/Object;");
mv.visitVarInsn(ALOAD, 1);
mv.visitVarInsn(ILOAD, 2);
mv.visitVarInsn(ILOAD, 3);
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(
GETFIELD,
classType,
"parsingContext",
AsmUtils.toDeclaredLType(ParsingContext.class));
mv.visitMethodInsn(
INVOKEINTERFACE,
CELL_SETTER_TYPE,
"set",
"(Ljava/lang/Object;[CIIL" + AsmUtils.toType(ParsingContext.class) + ";)V",
true);
}
if (i < (end - 1)) {
mv.visitJumpInsn(GOTO, defaultLabel);
}
}
mv.visitLabel(defaultLabel);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
}
@Override
protected int maxArgIndex() {
return 4;
}
@Override
protected void loadArguments(MethodVisitor mv) {
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 1);
mv.visitVarInsn(ILOAD, 2);
mv.visitVarInsn(ILOAD, 3);
mv.visitVarInsn(ILOAD, 4);
}
@Override
protected int argIndex() {
return 4;
}
@Override
protected String name() {
return "_cellValue";
}
@Override
protected String signature() {
return "([CIII)V";
}
@Override
protected int leafStart() {
return delayedCellSetters.length;
}
@Override
protected void appendDebugInfo(MethodVisitor mv, Label startLabel, Label endLabel) {
mv.visitLocalVariable(
"this",
"Lorg/sfm/reflect/asm/sample/AsmCsvMapperCellHandler;",
null,
startLabel,
endLabel,
0);
mv.visitLocalVariable("chars", "[C", null, startLabel, endLabel, 1);
mv.visitLocalVariable("offset", "I", null, startLabel, endLabel, 2);
mv.visitLocalVariable("length", "I", null, startLabel, endLabel, 3);
mv.visitLocalVariable("cellIndex", "I", null, startLabel, endLabel, 4);
}
});
}
private static <T> void appendPeekDelayedCellSetterValue(
final DelayedCellSetterFactory<T, ?>[] delayedCellSetters,
final ClassWriter cw,
final String classType,
final int maxMethodSize) {
ShardingHelper.shard(
delayedCellSetters.length,
maxMethodSize,
new AbstractMethodDispatchShardCallBack<T>(cw, classType, maxMethodSize) {
@Override
protected void appendLeafSwitch(MethodVisitor mv, int start, int end) {
Label defaultLabel = new Label();
Label[] labels = newLabels(end - start);
mv.visitTableSwitchInsn(start, end - 1, defaultLabel, labels);
for (int i = start; i < end; i++) {
mv.visitLabel(labels[i - start]);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
if (delayedCellSetters[i] != null) {
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(
GETFIELD,
classType,
"delayedCellSetter" + i,
"L" + DELAYED_CELL_SETTER_TYPE + ";");
mv.visitMethodInsn(
INVOKEINTERFACE,
DELAYED_CELL_SETTER_TYPE,
"peekValue",
"()Ljava/lang/Object;",
true);
mv.visitInsn(ARETURN);
} else if (i < (delayedCellSetters.length - 1)) {
mv.visitInsn(ACONST_NULL);
mv.visitInsn(ARETURN);
}
}
mv.visitLabel(defaultLabel);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
}
@Override
protected int maxArgIndex() {
return 1;
}
@Override
protected void loadArguments(MethodVisitor mv) {
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ILOAD, 1);
}
@Override
protected int argIndex() {
return 1;
}
@Override
protected String name() {
return "_peekDelayedCellSetterValue";
}
@Override
protected String signature() {
return "(I)Ljava/lang/Object;";
}
});
MethodVisitor mv;
mv =
cw.visitMethod(
ACC_PUBLIC,
"peekDelayedCellSetterValue",
"(L" + AsmUtils.toType(CsvColumnKey.class) + ";)Ljava/lang/Object;",
null,
null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 1);
mv.visitMethodInsn(
INVOKEVIRTUAL, AsmUtils.toType(CsvColumnKey.class), "getIndex", "()I", false);
mv.visitVarInsn(ISTORE, 2);
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ILOAD, 2);
mv.visitMethodInsn(
INVOKESPECIAL, classType, "_peekDelayedCellSetterValue", "(I)Ljava/lang/Object;", false);
mv.visitInsn(ARETURN);
mv.visitMaxs(1, 2);
mv.visitEnd();
}
private static <T> void append_delayedCellValue(
final DelayedCellSetterFactory<T, ?>[] delayedCellSetters,
final ClassWriter cw,
final String classType,
final int maxMethodSize) {
ShardingHelper.shard(
delayedCellSetters.length,
maxMethodSize,
new AbstractMethodDispatchShardCallBack<T>(cw, classType, maxMethodSize) {
@Override
protected void appendLeafSwitch(MethodVisitor mv, int start, int end) {
Label defaultLabel = new Label();
Label[] labels = newLabels(end - start);
mv.visitTableSwitchInsn(start, end - 1, defaultLabel, labels);
for (int i = start; i < end; i++) {
mv.visitLabel(labels[i - start]);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
if (delayedCellSetters[i] != null) {
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(
GETFIELD,
classType,
"delayedCellSetter" + i,
"L" + DELAYED_CELL_SETTER_TYPE + ";");
mv.visitVarInsn(ALOAD, 1);
mv.visitVarInsn(ILOAD, 2);
mv.visitVarInsn(ILOAD, 3);
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(
GETFIELD,
classType,
"parsingContext",
AsmUtils.toDeclaredLType(ParsingContext.class));
mv.visitMethodInsn(
INVOKEINTERFACE,
DELAYED_CELL_SETTER_TYPE,
"set",
"([CIIL" + AsmUtils.toType(ParsingContext.class) + ";)V",
true);
}
if (i < (end - 1)) {
mv.visitJumpInsn(GOTO, defaultLabel);
}
}
mv.visitLabel(defaultLabel);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
}
@Override
protected void loadArguments(MethodVisitor mv) {
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 1);
mv.visitVarInsn(ILOAD, 2);
mv.visitVarInsn(ILOAD, 3);
mv.visitVarInsn(ILOAD, 4);
}
@Override
protected int maxArgIndex() {
return 4;
}
@Override
protected int argIndex() {
return 4;
}
@Override
protected String name() {
return "_delayedCellValue";
}
@Override
protected String signature() {
return "([CIII)V";
}
});
}
private static <T> void appendApplyDelayedSetter(
final DelayedCellSetterFactory<T, ?>[] delayedCellSetters,
final boolean ignoreException,
final ClassWriter cw,
final String classType,
final int maxMethodSize) {
ShardingHelper.shard(
delayedCellSetters.length,
maxMethodSize,
new ShardingHelper.ShardCallBack() {
@Override
public void leafDispatch(String suffix, int start, int end) {
MethodVisitor mv;
mv = cw.visitMethod(ACC_PUBLIC, "applyDelayedSetters" + suffix, "()V", null, null);
mv.visitCode();
if (end - start > 0) {
if (!ignoreException) {
Label[] labels =
newLabels(
(3 * getNbNonNullSettersWithSetters(delayedCellSetters, start, end)) + 1);
for (int i = start, j = 0; i < end; i++) {
if (delayedCellSetters[i] != null && delayedCellSetters[i].hasSetter()) {
mv.visitTryCatchBlock(
labels[j], labels[j + 1], labels[j + 2], "java/lang/Exception");
j += 3;
}
}
for (int i = start, j = 0; i < end; i++) {
if (delayedCellSetters[i] != null && delayedCellSetters[i].hasSetter()) {
mv.visitLabel(labels[j]);
if (j > 0) {
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
}
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(
INVOKESPECIAL, classType, "applyDelayedCellSetter" + i, "()V", false);
mv.visitLabel(labels[j + 1]);
mv.visitJumpInsn(GOTO, labels[j + 3]);
mv.visitLabel(labels[j + 2]);
mv.visitFrame(
Opcodes.F_SAME1, 0, null, 1, new Object[] {"java/lang/Exception"});
mv.visitVarInsn(ASTORE, 1);
mv.visitVarInsn(ALOAD, 0);
AsmUtils.addIndex(mv, i);
mv.visitVarInsn(ALOAD, 1);
mv.visitMethodInsn(
INVOKEVIRTUAL, classType, "fieldError", "(ILjava/lang/Exception;)V", false);
j += 3;
}
}
mv.visitLabel(labels[labels.length - 1]);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
} else {
for (int i = start; i < end; i++) {
if (delayedCellSetters[i] != null && delayedCellSetters[i].hasSetter()) {
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(
INVOKESPECIAL, classType, "applyDelayedCellSetter" + i, "()V", false);
}
}
}
}
mv.visitInsn(RETURN);
mv.visitMaxs(3, 2);
mv.visitEnd();
}
@Override
public void nodeDispatch(String suffix, int divide, int start, int end) {
MethodVisitor mv;
mv =
cw.visitMethod(
ACC_PUBLIC,
"applyDelayedSetters" + suffix,
"()V",
null,
new String[] {"java/lang/Exception"});
mv.visitCode();
final int powerOfTwo = Integer.numberOfTrailingZeros(divide);
int sStart = start >> powerOfTwo;
int sEnd = end >> powerOfTwo;
int left = end - (sEnd << powerOfTwo);
if (left > 0) {
sEnd++;
}
for (int i = sStart; i < sEnd; i++) {
int estart = i * divide;
int eend = Math.min(end, (i + 1) * divide);
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(
INVOKESPECIAL,
classType,
"applyDelayedSetters" + (divide / maxMethodSize) + "n" + estart + "t" + eend,
"()V",
false);
}
mv.visitInsn(RETURN);
mv.visitMaxs(6, 5);
mv.visitEnd();
}
});
}
private static Label[] newLabels(int ll) {
Label[] labels = new Label[ll];
for (int i = 0; i < labels.length; i++) {
labels[i] = new Label();
}
return labels;
}
private static <T> void appendApplyDelayedCellSetterN(
DelayedCellSetterFactory<T, ?>[] delayedCellSetters, ClassWriter cw, String classType) {
MethodVisitor mv;
for (int i = 0; i < delayedCellSetters.length; i++) {
if (delayedCellSetters[i] != null) {
mv =
cw.visitMethod(
ACC_PRIVATE,
"applyDelayedCellSetter" + i,
"()V",
null,
new String[] {"java/lang/Exception"});
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(
GETFIELD, classType, "delayedCellSetter" + i, "L" + DELAYED_CELL_SETTER_TYPE + ";");
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, classType, "currentInstance", "Ljava/lang/Object;");
mv.visitMethodInsn(
INVOKEINTERFACE, DELAYED_CELL_SETTER_TYPE, "set", "(Ljava/lang/Object;)V", true);
mv.visitInsn(RETURN);
mv.visitMaxs(2, 1);
mv.visitEnd();
}
}
}
private static <T> void appendCellValue(
CellSetter<T>[] setters, boolean ignoreException, ClassWriter cw, String classType) {
MethodVisitor mv;
mv = cw.visitMethod(ACC_PUBLIC, "cellValue", "([CIII)V", null, null);
mv.visitCode();
if (setters.length != 0) {
if (ignoreException) {
callCellValue(mv, classType);
} else {
Label l0 = new Label();
Label l1 = new Label();
Label l2 = new Label();
mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Exception");
mv.visitLabel(l0);
callCellValue(mv, classType);
mv.visitLabel(l1);
Label l3 = new Label();
mv.visitJumpInsn(GOTO, l3);
mv.visitLabel(l2);
mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] {"java/lang/Exception"});
mv.visitVarInsn(ASTORE, 5);
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ILOAD, 4);
mv.visitVarInsn(ALOAD, 5);
mv.visitMethodInsn(
INVOKEVIRTUAL, classType, "fieldError", "(ILjava/lang/Exception;)V", false);
mv.visitLabel(l3);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
}
}
mv.visitInsn(RETURN);
mv.visitMaxs(5, 6);
mv.visitEnd();
}
private static <T> void appendDelayedCellValue(
DelayedCellSetterFactory<T, ?>[] delayedCellSetters,
boolean ignoreException,
ClassWriter cw,
String classType) {
MethodVisitor mv;
mv = cw.visitMethod(ACC_PUBLIC, "delayedCellValue", "([CIII)V", null, null);
mv.visitCode();
if (delayedCellSetters.length != 0) {
if (ignoreException) {
callDelayedCellValue(mv, classType);
} else {
Label l0 = new Label();
Label l1 = new Label();
Label l2 = new Label();
mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Exception");
mv.visitLabel(l0);
callDelayedCellValue(mv, classType);
mv.visitLabel(l1);
Label l3 = new Label();
mv.visitJumpInsn(GOTO, l3);
mv.visitLabel(l2);
mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] {"java/lang/Exception"});
mv.visitVarInsn(ASTORE, 5);
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ILOAD, 4);
mv.visitVarInsn(ALOAD, 5);
mv.visitMethodInsn(
INVOKEVIRTUAL, classType, "fieldError", "(ILjava/lang/Exception;)V", false);
mv.visitLabel(l3);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
}
}
mv.visitInsn(RETURN);
mv.visitMaxs(5, 6);
mv.visitEnd();
}
private static <T> void appendInit(
DelayedCellSetterFactory<T, ?>[] delayedCellSetters,
CellSetter<T>[] setters,
ClassWriter cw,
String targetType,
String classType,
int maxSize) {
MethodVisitor mv; // constructor
{
mv =
cw.visitMethod(
ACC_PUBLIC,
"<init>",
"("
+ AsmUtils.toDeclaredLType(Instantiator.class)
+ AsmUtils.toDeclaredLType(DelayedCellSetter[].class)
+ AsmUtils.toDeclaredLType(CellSetter[].class)
+ AsmUtils.toDeclaredLType(CsvColumnKey[].class)
+ AsmUtils.toDeclaredLType(ParsingContext.class)
+ AsmUtils.toDeclaredLType(FieldMapperErrorHandler.class)
+ ")V",
"("
+ "L"
+ AsmUtils.toType(Instantiator.class)
+ "<L"
+ AsmUtils.toType(CsvMapperCellHandler.class)
+ "<L"
+ targetType
+ ";>;L"
+ targetType
+ ";>;"
+ "[L"
+ DELAYED_CELL_SETTER_TYPE
+ "<L"
+ targetType
+ ";*>;"
+ "[L"
+ CELL_SETTER_TYPE
+ "<L"
+ targetType
+ ";>;"
+ AsmUtils.toDeclaredLType(CsvColumnKey[].class)
+ AsmUtils.toDeclaredLType(ParsingContext.class)
+ "L"
+ AsmUtils.toType(FieldMapperErrorHandler.class)
+ "<L"
+ AsmUtils.toType(CsvColumnKey.class)
+ ";>;"
+ ")V",
null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 1);
mv.visitVarInsn(ALOAD, 4);
mv.visitVarInsn(ALOAD, 2);
mv.visitInsn(ARRAYLENGTH);
mv.visitVarInsn(ALOAD, 3);
mv.visitInsn(ARRAYLENGTH);
mv.visitVarInsn(ALOAD, 5);
mv.visitVarInsn(ALOAD, 6);
mv.visitMethodInsn(
INVOKESPECIAL,
CSV_CELL_MAPPER_TYPE,
"<init>",
"("
+ AsmUtils.toDeclaredLType(Instantiator.class)
+ AsmUtils.toDeclaredLType(CsvColumnKey[].class)
+ "I"
+ "I"
+ AsmUtils.toDeclaredLType(ParsingContext.class)
+ AsmUtils.toDeclaredLType(FieldMapperErrorHandler.class)
+ ")V",
false);
ShardingHelper.shard(
delayedCellSetters.length,
maxSize,
new ShardingHelper.ShardCallBack() {
@Override
public void leafDispatch(String suffix, int start, int end) {}
@Override
public void nodeDispatch(String suffix, int divide, int start, int end) {}
});
for (int i = 0; i < delayedCellSetters.length; i++) {
if (delayedCellSetters[i] != null) {
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 2);
AsmUtils.addIndex(mv, i);
mv.visitInsn(AALOAD);
mv.visitFieldInsn(
PUTFIELD,
classType,
"delayedCellSetter" + i,
AsmUtils.toDeclaredLType(DELAYED_CELL_SETTER_TYPE));
}
}
for (int i = 0; i < setters.length; i++) {
if (setters[i] != null) {
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 3);
AsmUtils.addIndex(mv, i);
mv.visitInsn(AALOAD);
mv.visitFieldInsn(
PUTFIELD, classType, "setter" + i, AsmUtils.toDeclaredLType(CELL_SETTER_TYPE));
}
}
mv.visitInsn(RETURN);
mv.visitMaxs(7, 7);
mv.visitEnd();
}
}
private static <T> void appendGetDelayedCellSetter(
DelayedCellSetterFactory<T, ?>[] delayedCellSetters,
ClassWriter cw,
String targetType,
String classType,
int maxMethodSize) {
MethodVisitor mv;
mv =
cw.visitMethod(
ACC_PUBLIC,
"getDelayedCellSetter",
"(I)L" + DELAYED_CELL_SETTER_TYPE + ";",
"(I)L" + DELAYED_CELL_SETTER_TYPE + "<L" + targetType + ";*>;",
null);
mv.visitCode();
if (delayedCellSetters.length != 0) {
final int switchStart = 0;
final int switchEnd = delayedCellSetters.length;
appendGetDelayedCellSetterSwitch(delayedCellSetters, classType, mv, switchStart, switchEnd);
}
mv.visitInsn(ACONST_NULL);
mv.visitInsn(ARETURN);
mv.visitMaxs(1, 2);
mv.visitEnd();
}
private static <T> void appendGetDelayedCellSetterSwitch(
DelayedCellSetterFactory<T, ?>[] delayedCellSetters,
String classType,
MethodVisitor mv,
int switchStart,
int switchEnd) {
mv.visitVarInsn(ILOAD, 1);
Label defaultLabel = new Label();
Label[] labels = newLabels(switchEnd - switchStart);
mv.visitTableSwitchInsn(switchStart, switchEnd - 1, defaultLabel, labels);
for (int i = switchStart; i < switchEnd; i++) {
mv.visitLabel(labels[i - switchStart]);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
if (delayedCellSetters != null) {
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(
GETFIELD, classType, "delayedCellSetter" + i, "L" + DELAYED_CELL_SETTER_TYPE + ";");
} else {
mv.visitInsn(ACONST_NULL);
}
mv.visitInsn(ARETURN);
}
mv.visitLabel(defaultLabel);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
}
private static void callCellValue(MethodVisitor mv, String classType) {
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 1);
mv.visitVarInsn(ILOAD, 2);
mv.visitVarInsn(ILOAD, 3);
mv.visitVarInsn(ILOAD, 4);
mv.visitMethodInsn(INVOKESPECIAL, classType, "_cellValue", "([CIII)V", false);
}
private static void callDelayedCellValue(MethodVisitor mv, String classType) {
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 1);
mv.visitVarInsn(ILOAD, 2);
mv.visitVarInsn(ILOAD, 3);
mv.visitVarInsn(ILOAD, 4);
mv.visitMethodInsn(INVOKESPECIAL, classType, "_delayedCellValue", "([CIII)V", false);
}
private static <T> int getNbNonNullSettersWithSetters(
DelayedCellSetterFactory<T, ?>[] delayedCellSetters, int start, int end) {
int n = 0;
for (int i = start; i < end; i++) {
if (delayedCellSetters[i] != null && delayedCellSetters[i].hasSetter()) n++;
}
return n;
}
public static byte[] createTargetSetterFactory(String factoryName, String className, Type target)
throws Exception {
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
MethodVisitor mv;
String factoryType = AsmUtils.toType(factoryName);
String classType = AsmUtils.toType(className);
String targetType = AsmUtils.toType(target);
cw.visit(
V1_6,
ACC_FINAL + ACC_PUBLIC + ACC_SUPER,
factoryType,
"L" + CELL_HANDLER_FACTORY_TYPE + "<L" + targetType + ";>;",
CELL_HANDLER_FACTORY_TYPE,
null);
{
mv =
cw.visitMethod(
ACC_PUBLIC,
"<init>",
"("
+ AsmUtils.toDeclaredLType(Instantiator.class)
+ AsmUtils.toDeclaredLType(CsvColumnKey[].class)
+ AsmUtils.toDeclaredLType(ParsingContextFactory.class)
+ AsmUtils.toDeclaredLType(FieldMapperErrorHandler.class)
+ ")V",
"("
+ "L"
+ AsmUtils.toType(Instantiator.class)
+ "<L"
+ AsmUtils.toType(CsvMapperCellHandler.class)
+ "<L"
+ targetType
+ ";>;L"
+ targetType
+ ";>;"
+ AsmUtils.toDeclaredLType(CsvColumnKey[].class)
+ AsmUtils.toDeclaredLType(ParsingContextFactory.class)
+ "L"
+ AsmUtils.toType(FieldMapperErrorHandler.class)
+ "<L"
+ AsmUtils.toType(CsvColumnKey.class)
+ ";>;"
+ ")V",
null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 1);
mv.visitVarInsn(ALOAD, 2);
mv.visitVarInsn(ALOAD, 3);
mv.visitVarInsn(ALOAD, 4);
mv.visitMethodInsn(
INVOKESPECIAL,
CELL_HANDLER_FACTORY_TYPE,
"<init>",
"("
+ AsmUtils.toDeclaredLType(Instantiator.class)
+ AsmUtils.toDeclaredLType(CsvColumnKey[].class)
+ AsmUtils.toDeclaredLType(ParsingContextFactory.class)
+ AsmUtils.toDeclaredLType(FieldMapperErrorHandler.class)
+ ")V",
false);
mv.visitInsn(RETURN);
mv.visitMaxs(5, 5);
mv.visitEnd();
}
{
mv =
cw.visitMethod(
ACC_PUBLIC,
"newInstance",
"("
+ AsmUtils.toDeclaredLType(DelayedCellSetter[].class)
+ AsmUtils.toDeclaredLType(CellSetter[].class)
+ ")"
+ AsmUtils.toDeclaredLType(CsvMapperCellHandler.class),
"("
+ "[L"
+ DELAYED_CELL_SETTER_TYPE
+ "<L"
+ targetType
+ ";*>;"
+ "[L"
+ CELL_SETTER_TYPE
+ "<L"
+ targetType
+ ";>;"
+ ")"
+ "L"
+ AsmUtils.toType(CsvMapperCellHandler.class)
+ "<L"
+ targetType
+ ";>;",
null);
mv.visitCode();
mv.visitTypeInsn(NEW, classType);
mv.visitInsn(DUP);
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(
GETFIELD, factoryType, "instantiator", AsmUtils.toDeclaredLType(Instantiator.class));
mv.visitVarInsn(ALOAD, 1);
mv.visitVarInsn(ALOAD, 2);
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(
GETFIELD, factoryType, "keys", AsmUtils.toDeclaredLType(CsvColumnKey[].class));
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(
GETFIELD,
factoryType,
"parsingContextFactory",
AsmUtils.toDeclaredLType(ParsingContextFactory.class));
mv.visitMethodInsn(
INVOKEVIRTUAL,
AsmUtils.toType(ParsingContextFactory.class),
"newContext",
"()" + AsmUtils.toDeclaredLType(ParsingContext.class),
false);
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(
GETFIELD,
factoryType,
"fieldErrorHandler",
AsmUtils.toDeclaredLType(FieldMapperErrorHandler.class));
mv.visitMethodInsn(
INVOKESPECIAL,
classType,
"<init>",
"("
+ AsmUtils.toDeclaredLType(Instantiator.class)
+ AsmUtils.toDeclaredLType(DelayedCellSetter[].class)
+ AsmUtils.toDeclaredLType(CellSetter[].class)
+ AsmUtils.toDeclaredLType(CsvColumnKey[].class)
+ AsmUtils.toDeclaredLType(ParsingContext.class)
+ AsmUtils.toDeclaredLType(FieldMapperErrorHandler.class)
+ ")V",
false);
mv.visitInsn(ARETURN);
mv.visitMaxs(8, 3);
mv.visitEnd();
}
cw.visitEnd();
return cw.toByteArray();
}
private abstract static class AbstractMethodDispatchShardCallBack<T>
implements ShardingHelper.ShardCallBack {
private final ClassWriter cw;
private final String classType;
private final int maxMethodSize;
public AbstractMethodDispatchShardCallBack(
ClassWriter cw, String classType, int maxMethodSize) {
this.cw = cw;
this.classType = classType;
this.maxMethodSize = maxMethodSize;
}
@Override
public void leafDispatch(String suffix, int start, int end) {
MethodVisitor mv;
mv = cw.visitMethod(ACC_PUBLIC, name() + suffix, signature(), null, null);
mv.visitCode();
if (end - start > 0) {
mv.visitVarInsn(ILOAD, argIndex());
appendLeafSwitch(mv, start, end);
}
if (isVoid()) {
mv.visitInsn(RETURN);
} else {
mv.visitInsn(ACONST_NULL);
mv.visitInsn(ARETURN);
}
mv.visitMaxs(1, 2);
mv.visitEnd();
}
protected abstract void appendLeafSwitch(MethodVisitor mv, int start, int end);
@Override
public void nodeDispatch(String suffix, int divide, int start, int end) {
MethodVisitor mv;
mv = cw.visitMethod(ACC_PRIVATE, name() + suffix, signature(), null, null);
mv.visitCode();
Label startLabel = new Label();
mv.visitLabel(startLabel);
final int powerOfTwo = Integer.numberOfTrailingZeros(divide);
int sStart = start >> powerOfTwo;
int sEnd = end >> powerOfTwo;
int left = end - (sEnd << powerOfTwo);
if (left > 0) {
sEnd++;
}
Label[] labels = newLabels(sEnd - sStart);
Label defaultLabel = new Label();
mv.visitVarInsn(ILOAD, argIndex());
int sub = leafStart();
if (sub != 0) {
AsmUtils.addIndex(mv, sub);
mv.visitInsn(ISUB);
}
AsmUtils.addIndex(mv, powerOfTwo);
mv.visitInsn(ISHR);
mv.visitVarInsn(ISTORE, maxArgIndex() + 1);
mv.visitVarInsn(ILOAD, maxArgIndex() + 1);
mv.visitTableSwitchInsn(sStart, sEnd - 1, defaultLabel, labels);
for (int i = sStart; i < sEnd; i++) {
int estart = i << powerOfTwo;
int eend = Math.min(end, (i + 1) << powerOfTwo);
mv.visitLabel(labels[i - sStart]);
if (i == start) {
mv.visitFrame(Opcodes.F_APPEND, 1, new Object[] {Opcodes.INTEGER}, 0, null);
} else {
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
}
loadArguments(mv);
mv.visitMethodInsn(
INVOKESPECIAL,
classType,
name() + (divide / maxMethodSize) + "n" + estart + "t" + eend,
signature(),
false);
if (isVoid()) {
if (i < (sEnd - 1)) {
mv.visitJumpInsn(GOTO, defaultLabel);
}
} else {
mv.visitInsn(ARETURN);
}
}
mv.visitLabel(defaultLabel);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
if (isVoid()) {
mv.visitInsn(RETURN);
} else {
mv.visitInsn(ACONST_NULL);
mv.visitInsn(ARETURN);
}
Label endLabel = new Label();
mv.visitLabel(endLabel);
appendDebugInfo(mv, startLabel, endLabel);
mv.visitMaxs(6, 5);
mv.visitEnd();
}
protected int leafStart() {
return 0;
}
protected abstract int maxArgIndex();
protected void appendDebugInfo(MethodVisitor mv, Label startLabel, Label endLabel) {}
protected abstract void loadArguments(MethodVisitor mv);
protected abstract int argIndex();
private boolean isVoid() {
return signature().endsWith("V");
}
protected abstract String name();
protected abstract String signature();
}
}