package com.github.mustachejava.reflect;
import com.github.mustachejava.Binding;
import com.github.mustachejava.Code;
import com.github.mustachejava.Iteration;
import com.github.mustachejava.ObjectHandler;
import com.github.mustachejava.TemplateContext;
import java.io.Writer;
import java.lang.reflect.AccessibleObject;
import java.lang.reflect.Array;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.Iterator;
import java.util.List;
public abstract class BaseObjectHandler implements ObjectHandler {
@Override
public Object coerce(Object object) {
return object;
}
@Override
public Writer falsey(Iteration iteration, Writer writer, Object object, Object[] scopes) {
if (object != null) {
if (object instanceof Boolean) {
if ((Boolean) object) {
return writer;
}
} else if (object instanceof String) {
if (!object.toString().equals("")) {
return writer;
}
} else if (object instanceof List) {
List list = (List) object;
int length = list.size();
if (length > 0) return writer;
} else if (object instanceof Iterable) {
Iterable iterable = (Iterable) object;
if (iterable.iterator().hasNext()) return writer;
} else if (object instanceof Iterator) {
Iterator iterator = (Iterator) object;
if (iterator.hasNext()) return writer;
} else if (object.getClass().isArray()) {
int length = Array.getLength(object);
if (length > 0) return writer;
} else {
// All other objects are truthy
return writer;
}
}
return iteration.next(writer, object, scopes);
}
@Override
public abstract Binding createBinding(String name, TemplateContext tc, Code code);
public Writer iterate(Iteration iteration, Writer writer, Object object, Object[] scopes) {
if (object == null) return writer;
if (object instanceof Boolean) {
if (!(Boolean) object) {
return writer;
}
}
if (object instanceof String) {
if (object.toString().equals("")) {
return writer;
}
}
if (object instanceof Iterable) {
for (Object next : ((Iterable) object)) {
writer = iteration.next(writer, coerce(next), scopes);
}
} else if (object instanceof Iterator) {
Iterator iterator = (Iterator) object;
while (iterator.hasNext()) {
writer = iteration.next(writer, coerce(iterator.next()), scopes);
}
} else if (object.getClass().isArray()) {
int length = Array.getLength(object);
for (int i = 0; i < length; i++) {
writer = iteration.next(writer, coerce(Array.get(object, i)), scopes);
}
} else {
writer = iteration.next(writer, object, scopes);
}
return writer;
}
protected Field getField(Class aClass, String name) throws NoSuchFieldException {
Field member;
try {
member = aClass.getDeclaredField(name);
} catch (NoSuchFieldException nsfe) {
Class superclass = aClass.getSuperclass();
if (superclass != null && superclass != Object.class) {
return getField(superclass, name);
}
throw nsfe;
}
checkField(member);
member.setAccessible(true);
return member;
}
protected Method getMethod(Class aClass, String name, Class... params) throws NoSuchMethodException {
Method member;
try {
member = aClass.getMethod(name, params);
if (member.getDeclaringClass() == Object.class) {
throw new NoSuchMethodException();
}
} catch (NoSuchMethodException nsme) {
try {
member = aClass.getDeclaredMethod(name, params);
} catch (NoSuchMethodException nsme2) {
Class superclass = aClass.getSuperclass();
if (superclass != null && superclass != Object.class) {
return getMethod(superclass, name);
}
throw nsme2;
}
}
checkMethod(member);
member.setAccessible(true);
return member;
}
protected AccessibleObject findMember(Class sClass, String name) {
AccessibleObject ao;
try {
ao = getMethod(sClass, name);
} catch (NoSuchMethodException e) {
String propertyname = name.substring(0, 1).toUpperCase() +
(name.length() > 1 ? name.substring(1) : "");
try {
ao = getMethod(sClass, "get" + propertyname);
} catch (NoSuchMethodException e2) {
try {
ao = getMethod(sClass, "is" + propertyname);
} catch (NoSuchMethodException e3) {
try {
ao = getField(sClass, name);
} catch (NoSuchFieldException e4) {
ao = null;
}
}
}
}
return ao;
}
// We default to not allowing private methods
protected void checkMethod(Method member) throws NoSuchMethodException {
if ((member.getModifiers() & Modifier.PRIVATE) == Modifier.PRIVATE) {
throw new NoSuchMethodException("Only public, protected and package members allowed");
}
}
// We default to not allowing private fields
protected void checkField(Field member) throws NoSuchFieldException {
if ((member.getModifiers() & Modifier.PRIVATE) == Modifier.PRIVATE) {
throw new NoSuchFieldException("Only public, protected and package members allowed");
}
}
@Override
public String stringify(Object object) {
return object.toString();
}
}