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|
/*
+----------------------------------------------------------------------+
| PHP version 4.0 |
+----------------------------------------------------------------------+
| Copyright (c) 1997, 1998, 1999 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 2.0 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available at through the world-wide-web at |
| http://www.php.net/license.html. |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Sam Ruby (rubys@us.ibm.com) |
+----------------------------------------------------------------------+
*/
package net.php;
import java.lang.reflect.*;
import java.beans.*;
class reflect {
static { System.loadLibrary("php_java"); }
//
// Native methods
//
private static native void setResultFromString(long result, String value);
private static native void setResultFromLong(long result, long value);
private static native void setResultFromDouble(long result, double value);
private static native void setResultFromBoolean(long result, boolean value);
private static native void setResultFromObject(long result, Object value);
private static native void setException(long result, String value);
//
// Helper routines which encapsulate the native methods
//
static void setResult(long result, Object value) {
if (value == null) return;
if (value instanceof java.lang.String) {
setResultFromString(result, (String)value);
} else if (value instanceof java.lang.Number) {
if (value instanceof java.lang.Integer ||
value instanceof java.lang.Short ||
value instanceof java.lang.Byte) {
setResultFromLong(result, ((Number)value).longValue());
} else {
/* Float, Double, BigDecimal, BigInteger, Double, Long, ... */
setResultFromDouble(result, ((Number)value).doubleValue());
}
} else if (value instanceof java.lang.Boolean) {
setResultFromBoolean(result, ((Boolean)value).booleanValue());
} else {
setResultFromObject(result, value);
}
}
static void setException(long result, Throwable e) {
if (e instanceof InvocationTargetException) {
Throwable t = ((InvocationTargetException)e).getTargetException();
if (t!=null) e=t;
}
setException(result, e.toString());
}
//
// Create an new instance of a given class
//
public static void CreateObject(String name, Object args[], long result) {
try {
Constructor cons[] = Class.forName(name).getConstructors();
for (int i=0; i<cons.length; i++) {
if (cons[i].getParameterTypes().length == args.length) {
setResult(result, cons[i].newInstance(args));
return;
}
}
// for classes which have no visible constructor, return the class
// useful for classes like java.lang.System and java.util.Calendar.
if (args.length == 0) {
setResult(result, Class.forName(name));
return;
}
throw new InstantiationException("No matching constructor found");
} catch (Exception e) {
setException(result, e);
}
}
//
// Invoke a method on a given object
//
public static void Invoke
(Object object, String method, Object args[], long result)
{
try {
for (Class jclass = object.getClass();;jclass=(Class)object) {
Method methods[] = jclass.getMethods();
for (int i=0; i<methods.length; i++) {
if (methods[i].getName().equalsIgnoreCase(method) &&
methods[i].getParameterTypes().length == args.length) {
setResult(result, methods[i].invoke(object, args));
return;
}
}
// try a second time with the object itself, if it is of type Class
if (!(jclass instanceof Class) || (jclass==object)) break;
}
throw new NoSuchMethodException(method);
} catch (Exception e) {
setException(result, e);
}
}
//
// Get or Set a property
//
public static void GetSetProp
(Object object, String prop, Object args[], long result)
{
try {
for (Class jclass = object.getClass();;jclass=(Class)object) {
BeanInfo beanInfo = Introspector.getBeanInfo(jclass);
PropertyDescriptor props[] = beanInfo.getPropertyDescriptors();
for (int i=0; i<props.length; i++) {
if (props[i].getName().equalsIgnoreCase(prop)) {
Method method;
if (args!=null && args.length>0) {
method=props[i].getWriteMethod();
} else {
method=props[i].getReadMethod();
}
setResult(result, method.invoke(object, args));
return;
}
}
Field jfields[] = jclass.getFields();
for (int i=0; i<jfields.length; i++) {
if (jfields[i].getName().equalsIgnoreCase(prop)) {
if (args!=null && args.length>0) {
jfields[i].set(object, args[0]);
} else {
setResult(result, jfields[i].get(object));
}
return;
}
}
// try a second time with the object itself, if it is of type Class
if (!(jclass instanceof Class) || (jclass==object)) break;
}
} catch (Exception e) {
setException(result, e);
}
}
//
// Helper routines for the C implementation
//
public static Object MakeArg(boolean b) { return new Boolean(b); }
public static Object MakeArg(long l) { return new Long(l); }
public static Object MakeArg(double d) { return new Double(d); }
}
|
