+++ /dev/null
-/* gnu.java.beans.IntrospectionIncubator
- Copyright (C) 1998 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-02111-1307 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-
-package gnu.java.beans;
-
-import java.beans.*;
-import java.util.*;
-import java.lang.reflect.*;
-import gnu.java.lang.*;
-
-/**
- ** IntrospectionIncubator takes in a bunch of Methods, and
- ** Introspects only those Methods you give it.
- **
- ** @author John Keiser
- ** @version 1.1.0, 30 Jul 1998
- ** @see gnu.java.beans.ExplicitBeanInfo
- ** @see java.beans.BeanInfo
- **/
-
-public class IntrospectionIncubator {
- Hashtable propertyMethods = new Hashtable();
- Hashtable listenerMethods = new Hashtable();
- Vector otherMethods = new Vector();
-
- Class propertyStopClass;
- Class eventStopClass;
- Class methodStopClass;
-
- public IntrospectionIncubator() {
- }
-
- /* Paving the way for automatic Introspection */
- public void addMethod(Method method) {
- if(Modifier.isPublic(method.getModifiers()) && !Modifier.isStatic(method.getModifiers())) {
- String name = ClassHelper.getTruncatedName(method.getName());
- Class retType = method.getReturnType();
- Class[] params = method.getParameterTypes();
- boolean isVoid = retType.equals(java.lang.Void.TYPE);
- Class methodClass = method.getDeclaringClass();
- if(propertyStopClass == null || (propertyStopClass.isAssignableFrom(methodClass) && !propertyStopClass.equals(methodClass))) {
- if(name.startsWith("is")
- && retType.equals(java.lang.Boolean.TYPE)
- && params.length == 0) {
- addToPropertyHash(name,method,IS);
- } else if(name.startsWith("get") && !isVoid) {
- if(params.length == 0) {
- addToPropertyHash(name,method,GET);
- } else if(params.length == 1 && params[0].equals(java.lang.Integer.TYPE)) {
- addToPropertyHash(name,method,GET_I);
- } else {
- otherMethods.addElement(method);
- }
- } else if(name.startsWith("set") && isVoid) {
- if(params.length == 1) {
- addToPropertyHash(name,method,SET);
- } else if(params.length == 2 && params[0].equals(java.lang.Integer.TYPE)) {
- addToPropertyHash(name,method,SET_I);
- } else {
- otherMethods.addElement(method);
- }
- }
- }
- if(eventStopClass == null || (eventStopClass.isAssignableFrom(methodClass) && !eventStopClass.equals(methodClass))) {
- if(name.startsWith("add")
- && isVoid
- && params.length == 1
- && java.util.EventListener.class.isAssignableFrom(params[0])) {
- addToListenerHash(name,method,ADD);
- } else if(name.startsWith("remove")
- && isVoid
- && params.length == 1
- && java.util.EventListener.class.isAssignableFrom(params[0])) {
- addToListenerHash(name,method,REMOVE);
- }
- }
- if(methodStopClass == null || (methodStopClass.isAssignableFrom(methodClass) && !methodStopClass.equals(methodClass))) {
- otherMethods.addElement(method);
- }
- }
- }
-
- public void addMethods(Method[] m) {
- for(int i=0;i<m.length;i++) {
- addMethod(m[i]);
- }
- }
-
- public void setPropertyStopClass(Class c) {
- propertyStopClass = c;
- }
-
- public void setEventStopClass(Class c) {
- eventStopClass = c;
- }
-
- public void setMethodStopClass(Class c) {
- methodStopClass = c;
- }
-
-
- public BeanInfoEmbryo getBeanInfoEmbryo() throws IntrospectionException {
- BeanInfoEmbryo b = new BeanInfoEmbryo();
- findXXX(b,IS);
- findXXXInt(b,GET_I);
- findXXXInt(b,SET_I);
- findXXX(b,GET);
- findXXX(b,SET);
- findAddRemovePairs(b);
- for(int i=0;i<otherMethods.size();i++) {
- MethodDescriptor newMethod = new MethodDescriptor((Method)otherMethods.elementAt(i));
- if(!b.hasMethod(newMethod)) {
- b.addMethod(new MethodDescriptor((Method)otherMethods.elementAt(i)));
- }
- }
- return b;
- }
-
- public BeanInfo getBeanInfo() throws IntrospectionException {
- return getBeanInfoEmbryo().getBeanInfo();
- }
-
-
- void findAddRemovePairs(BeanInfoEmbryo b) throws IntrospectionException {
- Enumeration listenerEnum = listenerMethods.keys();
- while(listenerEnum.hasMoreElements()) {
- DoubleKey k = (DoubleKey)listenerEnum.nextElement();
- Method[] m = (Method[])listenerMethods.get(k);
- if(m[ADD] != null && m[REMOVE] != null) {
- EventSetDescriptor e = new EventSetDescriptor(Introspector.decapitalize(k.getName()),
- k.getType(), k.getType().getMethods(),
- m[ADD],m[REMOVE]);
- e.setUnicast(ArrayHelper.contains(m[ADD].getExceptionTypes(),java.util.TooManyListenersException.class));
- if(!b.hasEvent(e)) {
- b.addEvent(e);
- }
- }
- }
- }
-
- void findXXX(BeanInfoEmbryo b, int funcType) throws IntrospectionException {
- Enumeration keys = propertyMethods.keys();
- while(keys.hasMoreElements()) {
- DoubleKey k = (DoubleKey)keys.nextElement();
- Method[] m = (Method[])propertyMethods.get(k);
- if(m[funcType] != null) {
- PropertyDescriptor p = new PropertyDescriptor(Introspector.decapitalize(k.getName()),
- m[IS] != null ? m[IS] : m[GET],
- m[SET]);
- if(m[SET] != null) {
- p.setConstrained(ArrayHelper.contains(m[SET].getExceptionTypes(),java.beans.PropertyVetoException.class));
- }
- if(!b.hasProperty(p)) {
- b.addProperty(p);
- }
- }
- }
- }
-
- void findXXXInt(BeanInfoEmbryo b, int funcType) throws IntrospectionException {
- Enumeration keys = propertyMethods.keys();
- while(keys.hasMoreElements()) {
- DoubleKey k = (DoubleKey)keys.nextElement();
- Method[] m = (Method[])propertyMethods.get(k);
- if(m[funcType] != null) {
- boolean constrained;
- if(m[SET_I] != null) {
- constrained = ArrayHelper.contains(m[SET_I].getExceptionTypes(),java.beans.PropertyVetoException.class);
- } else {
- constrained = false;
- }
-
- /** Find out if there is an array type get or set **/
- Class arrayType = Array.newInstance(k.getType(),0).getClass();
- DoubleKey findSetArray = new DoubleKey(arrayType,k.getName());
- Method[] m2 = (Method[])propertyMethods.get(findSetArray);
- IndexedPropertyDescriptor p;
- if(m2 == null) {
- p = new IndexedPropertyDescriptor(Introspector.decapitalize(k.getName()),
- null,null,
- m[GET_I],m[SET_I]);
- } else {
- if(constrained && m2[SET] != null) {
- constrained = ArrayHelper.contains(m2[SET].getExceptionTypes(),java.beans.PropertyVetoException.class);
- }
- p = new IndexedPropertyDescriptor(Introspector.decapitalize(k.getName()),
- m2[GET],m2[SET],
- m[GET_I],m[SET_I]);
- }
- p.setConstrained(constrained);
- if(!b.hasProperty(p)) {
- b.addProperty(p);
- }
- }
- }
- }
-
- static final int IS=0;
- static final int GET_I=1;
- static final int SET_I=2;
- static final int GET=3;
- static final int SET=4;
-
- static final int ADD=0;
- static final int REMOVE=1;
-
- void addToPropertyHash(String name, Method method, int funcType) {
- String newName;
- Class type;
-
- switch(funcType) {
- case IS:
- type = java.lang.Boolean.TYPE;
- newName = name.substring(2);
- break;
- case GET_I:
- type = method.getReturnType();
- newName = name.substring(3);
- break;
- case SET_I:
- type = method.getParameterTypes()[1];
- newName = name.substring(3);
- break;
- case GET:
- type = method.getReturnType();
- newName = name.substring(3);
- break;
- case SET:
- type = method.getParameterTypes()[0];
- newName = name.substring(3);
- break;
- default:
- return;
- }
- newName = capitalize(newName);
-
- DoubleKey k = new DoubleKey(type,newName);
- Method[] methods = (Method[])propertyMethods.get(k);
- if(methods == null) {
- methods = new Method[5];
- propertyMethods.put(k,methods);
- }
- methods[funcType] = method;
- }
-
-
- void addToListenerHash(String name, Method method, int funcType) {
- String newName;
- Class type;
-
- switch(funcType) {
- case ADD:
- type = method.getParameterTypes()[0];
- newName = name.substring(3,name.length()-8);
- break;
- case REMOVE:
- type = method.getParameterTypes()[0];
- newName = name.substring(6,name.length()-8);
- break;
- default:
- return;
- }
- newName = capitalize(newName);
-
- DoubleKey k = new DoubleKey(type,newName);
- Method[] methods = (Method[])listenerMethods.get(k);
- if(methods == null) {
- methods = new Method[2];
- listenerMethods.put(k,methods);
- }
- methods[funcType] = method;
- }
-
- static String capitalize(String name) {
- try {
- if(Character.isUpperCase(name.charAt(0))) {
- return name;
- } else {
- char[] c = name.toCharArray();
- c[0] = Character.toLowerCase(c[0]);
- return new String(c);
- }
- } catch(StringIndexOutOfBoundsException E) {
- return name;
- } catch(NullPointerException E) {
- return null;
- }
- }
-}
-
-class DoubleKey {
- Class type;
- String name;
-
- DoubleKey(Class type, String name) {
- this.type = type;
- this.name = name;
- }
-
- Class getType() {
- return type;
- }
-
- String getName() {
- return name;
- }
-
- public boolean equals(Object o) {
- if(o instanceof DoubleKey) {
- DoubleKey d = (DoubleKey)o;
- return d.type.equals(type) && d.name.equals(name);
- } else {
- return false;
- }
- }
-
- public int hashCode() {
- return type.hashCode() ^ name.hashCode();
- }
-}
projects / msp430-gcc.git / blobdiff