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com.groupbyinc.common.jackson.module.afterburner.deser.BeanPropertyMutator Maven / Gradle / Ivy
package com.fasterxml.jackson.module.afterburner.deser;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import com.fasterxml.jackson.databind.deser.SettableBeanProperty;
/**
* Abstract class that defines interface for implementations
* that can be used proxy-like to change values of properties,
* without using Reflection.
*/
public abstract class BeanPropertyMutator
{
/**
* Mutator we have to call if an access exception is encountered
* durign operation
*/
protected final SettableBeanProperty originalMutator;
/**
* Index of the property setter or field. Only used for error reporting
* at this point.
*/
protected final int index;
// Intentionally not volatile for performance, worst case is we throw a few extra exceptions
private boolean broken = false;
/*
/**********************************************************************
/* Life-cycle methods
/**********************************************************************
*/
/**
* Default constructor used for creating a "blueprint" instance, from
* which per-field/per-method instances specialize.
*/
protected BeanPropertyMutator() {
this(null, -1);
}
protected BeanPropertyMutator(SettableBeanProperty origM, int ix) {
originalMutator = origM;
index = ix;
}
/**
* Mutant factory method called to create variant with proper fallback property
* to call, index to use for error reporting.
*/
public abstract BeanPropertyMutator with(SettableBeanProperty origM, int newIndex);
/*
/**********************************************************************
/* Setter calls
/**********************************************************************
*/
public void intSetter(Object bean, int value) throws IOException
{
if (broken) {
originalMutator.set(bean, value);
return;
}
try {
intSetter(bean, index, value);
return;
} catch (IllegalAccessError e) {
_reportProblem(bean, value, e);
return;
} catch (SecurityException e) {
_reportProblem(bean, value, e);
return;
}
}
public void longSetter(Object bean, long value) throws IOException
{
if (broken) {
originalMutator.set(bean, value);
return;
}
try {
longSetter(bean, index, value);
return;
} catch (IllegalAccessError e) {
_reportProblem(bean, value, e);
return;
} catch (SecurityException e) {
_reportProblem(bean, value, e);
return;
}
}
public void booleanSetter(Object bean, boolean value) throws IOException
{
if (broken) {
originalMutator.set(bean, value);
return;
}
try {
booleanSetter(bean, index, value);
return;
} catch (IllegalAccessError e) {
_reportProblem(bean, value, e);
return;
} catch (SecurityException e) {
_reportProblem(bean, value, e);
return;
}
}
public void stringSetter(Object bean, String value) throws IOException
{
if (broken) {
originalMutator.set(bean, value);
return;
}
try {
stringSetter(bean, index, value);
return;
} catch (IllegalAccessError e) {
_reportProblem(bean, value, e);
return;
} catch (SecurityException e) {
_reportProblem(bean, value, e);
return;
}
}
public void objectSetter(Object bean, Object value) throws IOException
{
if (broken) {
originalMutator.set(bean, value);
return;
}
try {
objectSetter(bean, index, value);
return;
} catch (IllegalAccessError e) {
_reportProblem(bean, value, e);
return;
} catch (SecurityException e) {
_reportProblem(bean, value, e);
return;
}
}
/*
/**********************************************************************
/* Field assignments
/**********************************************************************
*/
public void intField(Object bean, int value) throws IOException
{
if (broken) {
originalMutator.set(bean, value);
return;
}
try {
intField(bean, index, value);
return;
} catch (IllegalAccessError e) {
_reportProblem(bean, value, e);
return;
} catch (SecurityException e) {
_reportProblem(bean, value, e);
return;
}
}
public void longField(Object bean, long value) throws IOException
{
if (broken) {
originalMutator.set(bean, value);
return;
}
try {
longField(bean, index, value);
return;
} catch (IllegalAccessError e) {
_reportProblem(bean, value, e);
return;
} catch (SecurityException e) {
_reportProblem(bean, value, e);
return;
}
}
public void booleanField(Object bean, boolean value) throws IOException
{
if (broken) {
originalMutator.set(bean, value);
return;
}
try {
booleanField(bean, index, value);
return;
} catch (IllegalAccessError e) {
_reportProblem(bean, value, e);
return;
} catch (SecurityException e) {
_reportProblem(bean, value, e);
return;
}
}
public void stringField(Object bean, String value) throws IOException
{
if (broken) {
originalMutator.set(bean, value);
return;
}
try {
stringField(bean, index, value);
return;
} catch (IllegalAccessError e) {
_reportProblem(bean, value, e);
return;
} catch (SecurityException e) {
_reportProblem(bean, value, e);
return;
}
}
public void objectField(Object bean, Object value) throws IOException
{
if (broken) {
originalMutator.set(bean, value);
return;
}
try {
objectField(bean, index, value);
return;
} catch (IllegalAccessError e) {
_reportProblem(bean, value, e);
return;
} catch (SecurityException e) {
_reportProblem(bean, value, e);
return;
}
}
protected void intSetter(Object bean, int propertyIndex, int value) {
throw new UnsupportedOperationException("No intSetters defined");
}
protected void longSetter(Object bean, int propertyIndex, long value) {
throw new UnsupportedOperationException("No longSetters defined");
}
protected void booleanSetter(Object bean, int propertyIndex, boolean value) {
throw new UnsupportedOperationException("No booleanSetters defined");
}
protected void stringSetter(Object bean, int propertyIndex, String value) {
throw new UnsupportedOperationException("No stringSetters defined");
}
protected void objectSetter(Object bean, int propertyIndex, Object value) {
throw new UnsupportedOperationException("No objectSetters defined");
}
protected void intField(Object bean, int propertyIndex, int value) {
throw new UnsupportedOperationException("No intFields defined");
}
protected void longField(Object bean, int propertyIndex, long value) {
throw new UnsupportedOperationException("No longFields defined");
}
protected void booleanField(Object bean, int propertyIndex, boolean value) {
throw new UnsupportedOperationException("No booleanFields defined");
}
protected void stringField(Object bean, int propertyIndex, String value) {
throw new UnsupportedOperationException("No stringFields defined");
}
protected void objectField(Object bean, int propertyIndex, Object value) {
throw new UnsupportedOperationException("No objectFields defined");
}
/*
/**********************************************************************
/* Helper methods
/**********************************************************************
*/
private synchronized void _reportProblem(Object bean, Object value, Throwable e) throws IOException
{
// yes, double-locking, so not guaranteed; but all we want here is to reduce likelihood
// of multiple logging of same underlying problem. Not guaranteed, just improved.
if (!broken) {
broken = true;
String msg = String.format("Disabling Afterburner deserialization for %s (field #%d; mutator %s), due to access error (type %s, message=%s)%n",
bean.getClass(), index, getClass().getName(),
e.getClass().getName(), e.getMessage());
Logger.getLogger(BeanPropertyMutator.class.getName()).log(Level.WARNING, msg, e);
}
originalMutator.set(bean, value);
}
}
