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/*
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*
* Copyright (c) 2011-2013 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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* language governing permissions and limitations under the License.
*
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* file and include the License file at packager/legal/LICENSE.txt.
*
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*
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// Portions Copyright [2018] Payara Foundation and/or affiliates
package org.glassfish.config.support;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.logging.Level;
import java.util.logging.Logger;
import com.sun.enterprise.config.util.ConfigApiLoggerInfo;
public final class IntrospectionUtils {
private static final Logger LOGGER = ConfigApiLoggerInfo.getLogger();
private static final int DEBUG_LEVEL = 0;
@SuppressWarnings("unchecked")
public static Method[] findMethods(Class c) {
return c.getMethods();
}
/**
* Find a method with the right name If found, call the method ( if param is int or boolean we'll convert value to the right type before) - that means you
* can have setDebug(1).
*
* @param o
* @param name
* @param value
* @return
*/
public static boolean setProperty(Object o, String name, String value) {
if (DEBUG_LEVEL > 1) {
debug("setProperty(" + o.getClass() + " " + name + "=" + value + ")");
}
String setter = "set" + capitalize(name);
try {
Method methods[] = findMethods(o.getClass());
Method setPropertyMethodVoid = null;
Method setPropertyMethodBool = null;
// First, the ideal case - a setFoo( String ) method
for (Method method : methods) {
Class paramTypes[] = method.getParameterTypes();
if (setter.equals(method.getName()) && paramTypes.length == 1
&& "java.lang.String".equals(paramTypes[0].getName())) {
method.invoke(o, value);
return true;
}
}
// Try a setFoo ( int ) or ( boolean )
for (Method method : methods) {
boolean ok = true;
if (setter.equals(method.getName())
&& method.getParameterTypes().length == 1) {
// match - find the type and invoke it
Class paramType = method.getParameterTypes()[0];
Object params[] = new Object[1];
if (null == paramType.getName()) {
debug("Unknown type " + paramType.getName());
} else {
switch (paramType.getName()) {
// Try a setFoo ( int )
case "java.lang.Integer":
case "int":
try {
params[0] = new Integer(value);
} catch (NumberFormatException ex) {
ok = false;
}
break;
// Try a setFoo ( long )
case "java.lang.Long":
case "long":
try {
params[0] = new Long(value);
} catch (NumberFormatException ex) {
ok = false;
}
break;
// Try a setFoo ( boolean )
case "java.lang.Boolean":
case "boolean":
params[0] = Boolean.valueOf(value);
break;
// Try a setFoo ( InetAddress )
case "java.net.InetAddress":
try {
params[0] = InetAddress.getByName(value);
} catch (UnknownHostException exc) {
debug("Unable to resolve host name:" + value);
ok = false;
}
break;
default:
debug("Unknown type " + paramType.getName());
break;
}
}
if (ok) {
method.invoke(o, params);
return true;
}
}
// save "setProperty" for later
if ("setProperty".equals(method.getName())) {
if (method.getReturnType().equals(Boolean.TYPE)) {
setPropertyMethodBool = method;
} else {
setPropertyMethodVoid = method;
}
}
}
// Ok, no setXXX found, try a setProperty("name", "value")
if (setPropertyMethodBool != null || setPropertyMethodVoid != null) {
Object params[] = new Object[2];
params[0] = name;
params[1] = value;
if (setPropertyMethodBool != null) {
try {
return (Boolean) setPropertyMethodBool.invoke(o, params);
} catch (IllegalArgumentException biae) {
//the boolean method had the wrong
//parameter types. lets try the other
if (setPropertyMethodVoid != null) {
setPropertyMethodVoid.invoke(o, params);
return true;
} else {
throw biae;
}
}
} else {
setPropertyMethodVoid.invoke(o, params);
return true;
}
}
} catch (IllegalArgumentException ex2) {
LOGGER.log(Level.INFO, "IAE " + o + " " + name + " " + value, ex2);
} catch (SecurityException ex1) {
if (DEBUG_LEVEL > 0) {
debug("SecurityException for " + o.getClass() + " " + name + "=" + value + ")");
}
if (DEBUG_LEVEL > 1) {
ex1.printStackTrace();
}
} catch (IllegalAccessException iae) {
if (DEBUG_LEVEL > 0) {
debug("IllegalAccessException for " + o.getClass() + " " + name + "=" + value + ")");
}
if (DEBUG_LEVEL > 1) {
iae.printStackTrace();
}
} catch (InvocationTargetException ie) {
if (DEBUG_LEVEL > 0) {
debug("InvocationTargetException for " + o.getClass() + " " + name + "=" + value + ")");
}
if (DEBUG_LEVEL > 1) {
ie.printStackTrace();
}
}
return false;
}
private static void debug(String s) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, "IntrospectionUtils: {0}", s);
}
}
public static String capitalize(String name) {
if (name == null || name.length() == 0) {
return name;
}
char chars[] = name.toCharArray();
chars[0] = Character.toUpperCase(chars[0]);
return new String(chars);
}
}