org.springsource.loaded.agent
Class SpringLoadedPreProcessor

java.lang.Object
  org.springsource.loaded.agent.SpringLoadedPreProcessor

All Implemented Interfaces:

org.objectweb.asm.Opcodes, Constants

public class SpringLoadedPreProcessor
extends java.lang.Object
implements Constants

The entry point for the agent - all classes that can be modified will be passed into preProcess(). They have to be dealt with in one of these ways:

• reloadable types need their bytecode rewriting so that they can be modified later
• 'framework' types (not loaded by the system classloader) need their reflection calls rewritten
• system classes also need their reflection calls modified but in a different way (they cannot have dependencies on types they cannot see)

Since:

0.5.0

Field Summary

static boolean

disabled

Fields inherited from interface org.springsource.loaded.Constants

ACC_PRIVATE_PROTECTED, ACC_PRIVATE_STATIC, ACC_PRIVATE_STATIC_FINAL, ACC_PUBLIC_ABSTRACT, ACC_PUBLIC_INTERFACE, ACC_PUBLIC_PRIVATE_PROTECTED, ACC_PUBLIC_PROTECTED, ACC_PUBLIC_STATIC, ACC_PUBLIC_STATIC_FINAL, ACC_PUBLIC_STATIC_SYNTHETIC, ACC_PUBLIC_SYNTHETIC, DEFAULT_BOOLEAN, DEFAULT_BYTE, DEFAULT_CHAR, DEFAULT_DOUBLE, DEFAULT_FLOAT, DEFAULT_INT, DEFAULT_LONG, DEFAULT_SHORT, descriptorChangedForInvokeSpecialName, executorClassNamePattern, fInstanceFieldsName, fReloadableTypeFieldName, fStaticFieldsName, JLC_GETCONSTRUCTOR, JLC_GETDECLAREDCONSTRUCTOR, JLC_GETDECLAREDFIELD, JLC_GETDECLAREDFIELDS, JLC_GETDECLAREDMETHOD, JLC_GETDECLAREDMETHODS, JLC_GETFIELD, JLC_GETMETHOD, JLC_GETMETHODS, JLC_GETMODIFIERS, jlcgc, jlcgcDescriptor, jlcgdc, jlcgdcDescriptor, jlcgdf, jlcgdfDescriptor, jlcgdfs, jlcgdfsDescriptor, jlcgdm, jlcgdmDescriptor, jlcgdms, jlcgdmsDescriptor, jlcgf, jlcgfDescriptor, jlcgm, jlcgmDescriptor, jlcgmods, jlcgmodsDescriptor, jlcgms, jlcgmsDescriptor, jlObject, lDynamicallyDispatchable, lInstanceStateManager, lRegistryType, lReloadableType, lStaticStateManager, magicDescriptorForGeneratedCtors, mChangedForConstructorName, mChangedForInvocationName, mChangedForInvokeInterfaceName, mChangedForInvokeSpecialName, mChangedForInvokeStaticName, mChangedForInvokeVirtualName, mDynamicDispatchDescriptor, mDynamicDispatchName, methodSuffixSuperDispatcher, mInitializerName, mInstanceFieldGetterDescriptor, mInstanceFieldGetterName, mInstanceFieldInterceptionRequired, mInstanceFieldSetterDescriptor, mInstanceFieldSetterName, mStaticFieldGetterName, mStaticFieldInterceptionRequired, mStaticFieldSetterDescriptor, mStaticFieldSetterName, mStaticInitializerName, NO_FIELDS, NO_METHODS, NO_STRINGS, PREFIX, tDynamicallyDispatchable, tInstanceStateManager, tRegistryType, tReloadableType, tStaticStateManager, WAS_INVOKESTATIC, WAS_INVOKEVIRTUAL

Fields inherited from interface org.objectweb.asm.Opcodes

AALOAD, AASTORE, ACC_ABSTRACT, ACC_ANNOTATION, ACC_BRIDGE, ACC_DEPRECATED, ACC_ENUM, ACC_FINAL, ACC_INTERFACE, ACC_NATIVE, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_VARARGS, ACC_VOLATILE, ACONST_NULL, ALOAD, ANEWARRAY, ARETURN, ARRAYLENGTH, ASTORE, ATHROW, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, CHECKCAST, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DMUL, DNEG, DOUBLE, DREM, DRETURN, DSTORE, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F_APPEND, F_CHOP, F_FULL, F_NEW, F_SAME, F_SAME1, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, FLOAT, FMUL, FNEG, FREM, FRETURN, FSTORE, FSUB, GETFIELD, GETSTATIC, GOTO, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IALOAD, IAND, IASTORE, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, ICONST_M1, IDIV, IF_ACMPEQ, IF_ACMPNE, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL, IINC, ILOAD, IMUL, INEG, INSTANCEOF, INTEGER, INVOKEDYNAMIC, INVOKEDYNAMIC_OWNER, INVOKEINTERFACE, INVOKESPECIAL, INVOKESTATIC, INVOKEVIRTUAL, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISUB, IUSHR, IXOR, JSR, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDIV, LLOAD, LMUL, LNEG, LONG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSUB, LUSHR, LXOR, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, NULL, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, SWAP, T_BOOLEAN, T_BYTE, T_CHAR, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_SHORT, TABLESWITCH, TOP, UNINITIALIZED_THIS, V1_1, V1_2, V1_3, V1_4, V1_5, V1_6, V1_7

Constructor Summary

SpringLoadedPreProcessor()

Method Summary

static java.util.List<Plugin>	getGlobalPlugins()
static java.util.List<IsReloadableTypePlugin>	getIsReloadableTypePlugins()
void	initialize()
byte[]	preProcess(java.lang.ClassLoader classLoader, java.lang.String slashedClassName, java.security.ProtectionDomain protectionDomain, byte[] bytes) Main entry point to Spring Loaded when it is running as an agent.
static void	registerGlobalPlugin(Plugin instance)
static void	unregisterGlobalPlugin(Plugin instance)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

disabled

public static boolean disabled

Constructor Detail

SpringLoadedPreProcessor

public SpringLoadedPreProcessor()

Method Detail

initialize

public void initialize()

preProcess

public byte[] preProcess(java.lang.ClassLoader classLoader,
                         java.lang.String slashedClassName,
                         java.security.ProtectionDomain protectionDomain,
                         byte[] bytes)

Main entry point to Spring Loaded when it is running as an agent. This method will use the classLoader and the class name in order to determine whether the type should be made reloadable. Non-reloadable types will at least get their call sites rewritten.

Returns:

potentially modified bytes

getGlobalPlugins

public static java.util.List<Plugin> getGlobalPlugins()

getIsReloadableTypePlugins

public static java.util.List<IsReloadableTypePlugin> getIsReloadableTypePlugins()

registerGlobalPlugin

public static void registerGlobalPlugin(Plugin instance)

unregisterGlobalPlugin

public static void unregisterGlobalPlugin(Plugin instance)