WebSVN - MentaContainer - Blame - Rev 4 - /trunk/src/main/java/org/mentacontainer/util/InjectionUtils.java

Rev	Author	Line No.	Line
2	soliveira	1	package org.mentacontainer.util;
		2
		3	import java.lang.reflect.Field;
		4	import java.lang.reflect.InvocationTargetException;
		5	import java.lang.reflect.Method;
		6	import java.util.ArrayList;
		7	import java.util.HashMap;
		8	import java.util.Iterator;
		9	import java.util.List;
		10	import java.util.Map;
		11
4	soliveira	12	import org.mentacontainer.Container;
		13
2	soliveira	14	public class InjectionUtils {
		15
4	soliveira	16	/**
		17	* The character used to separate the prefix from the value name when you
		18	* are using the getObject method with a prefix. You can change the value of
		19	* this prefix if you want to by changing this static variable.
		20	*
		21	* Ex: getObject(User.class, "user") will get all values that begin with
		22	* "user.".
		23	*/
		24	public static char PREFIX_SEPARATOR = '.';
2	soliveira	25
4	soliveira	26	private static Map<Class<? extends Object>, Map<String, Object>> settersMaps = new HashMap<Class<? extends Object>, Map<String, Object>>();
2	soliveira	27
4	soliveira	28	private static Map<Class<? extends Object>, Map<String, Object>> fieldsMaps = new HashMap<Class<? extends Object>, Map<String, Object>>();
2	soliveira	29
4	soliveira	30	public static void prepareForInjection(Class<? extends Object> klass, Map<String, Object> setters, Map<String, Object> fields) {
2	soliveira	31
4	soliveira	32	StringBuffer sb = new StringBuffer(32);
2	soliveira	33
4	soliveira	34	Method[] methods = klass.getMethods();
2	soliveira	35
4	soliveira	36	for (int i = 0; i < methods.length; i++) {
2	soliveira	37
4	soliveira	38	Method m = methods[i];
2	soliveira	39
4	soliveira	40	String name = m.getName();
2	soliveira	41
4	soliveira	42	Class[] types = m.getParameterTypes();
2	soliveira	43
4	soliveira	44	if (name.startsWith("set") && name.length() > 3 && types.length == 1) {
2	soliveira	45
4	soliveira	46	String var = name.substring(3);
2	soliveira	47
4	soliveira	48	if (var.length() > 1) {
2	soliveira	49
4	soliveira	50	sb.delete(0, sb.length());
2	soliveira	51
4	soliveira	52	sb.append(var.substring(0, 1).toLowerCase());
2	soliveira	53
4	soliveira	54	sb.append(var.substring(1));
2	soliveira	55
4	soliveira	56	var = sb.toString();
2	soliveira	57
4	soliveira	58	} else {
2	soliveira	59
4	soliveira	60	var = var.toLowerCase();
		61	}
2	soliveira	62
4	soliveira	63	m.setAccessible(true);
2	soliveira	64
4	soliveira	65	if (setters.containsKey(var)) {
2	soliveira	66
4	soliveira	67	Object obj = setters.get(var);
2	soliveira	68
4	soliveira	69	if (obj instanceof List) {
2	soliveira	70
4	soliveira	71	List<Method> list = (List<Method>) obj;
2	soliveira	72
4	soliveira	73	list.add(m);
2	soliveira	74
4	soliveira	75	} else if (obj instanceof Method) {
2	soliveira	76
4	soliveira	77	List<Method> list = new ArrayList<Method>();
2	soliveira	78
4	soliveira	79	list.add((Method) obj);
2	soliveira	80
4	soliveira	81	list.add(m);
2	soliveira	82
4	soliveira	83	setters.put(var, list);
2	soliveira	84
4	soliveira	85	}
2	soliveira	86
4	soliveira	87	} else {
2	soliveira	88
4	soliveira	89	setters.put(var, m);
2	soliveira	90
		91	}
4	soliveira	92	}
		93	}
2	soliveira	94
4	soliveira	95	if (fields == null) return;
2	soliveira	96
4	soliveira	97	Field[] f = klass.getDeclaredFields();
2	soliveira	98
4	soliveira	99	for (int i = 0; i < f.length; i++) {
2	soliveira	100
4	soliveira	101	Field field = f[i];
2	soliveira	102
4	soliveira	103	field.setAccessible(true);
2	soliveira	104
4	soliveira	105	String name = field.getName();
2	soliveira	106
4	soliveira	107	if (setters.containsKey(name)) {
2	soliveira	108
4	soliveira	109	Object obj = setters.get(name);
2	soliveira	110
4	soliveira	111	if (obj instanceof Method) {
2	soliveira	112
4	soliveira	113	Method m = (Method) obj;
2	soliveira	114
4	soliveira	115	Class[] types = m.getParameterTypes();
2	soliveira	116
4	soliveira	117	Class type = field.getType();
2	soliveira	118
4	soliveira	119	if (type.isAssignableFrom(types[0])) continue; // don't
		120	// choose a
		121	// field when
		122	// we already
		123	// have
		124	// a
		125	// method...
2	soliveira	126
4	soliveira	127	} else if (obj instanceof List) {
2	soliveira	128
4	soliveira	129	List<Method> list = (List<Method>) obj;
2	soliveira	130
4	soliveira	131	Iterator<Method> iter = list.iterator();
2	soliveira	132
4	soliveira	133	boolean found = false;
2	soliveira	134
4	soliveira	135	while (iter.hasNext()) {
2	soliveira	136
4	soliveira	137	Method m = iter.next();
2	soliveira	138
4	soliveira	139	Class[] types = m.getParameterTypes();
2	soliveira	140
4	soliveira	141	Class type = field.getType();
2	soliveira	142
4	soliveira	143	if (type.isAssignableFrom(types[0])) {
2	soliveira	144
4	soliveira	145	found = true;
2	soliveira	146
4	soliveira	147	break;
		148	}
		149	}
2	soliveira	150
4	soliveira	151	if (found) continue; // don't choose a field when we already
		152	// have
		153	// a method...
2	soliveira	154
4	soliveira	155	}
		156	}
2	soliveira	157
4	soliveira	158	fields.put(name, field);
2	soliveira	159
		160	}
4	soliveira	161	}
2	soliveira	162
4	soliveira	163	public static boolean checkPrimitives(Class target, Class<? extends Object> source) {
2	soliveira	164
4	soliveira	165	if (target.equals(int.class) && source.equals(Integer.class)) return true;
2	soliveira	166
4	soliveira	167	if (target.equals(boolean.class) && source.equals(Boolean.class)) return true;
2	soliveira	168
4	soliveira	169	if (target.equals(byte.class) && source.equals(Byte.class)) return true;
2	soliveira	170
4	soliveira	171	if (target.equals(short.class) && source.equals(Short.class)) return true;
2	soliveira	172
4	soliveira	173	if (target.equals(char.class) && source.equals(Character.class)) return true;
2	soliveira	174
4	soliveira	175	if (target.equals(long.class) && source.equals(Long.class)) return true;
2	soliveira	176
4	soliveira	177	if (target.equals(float.class) && source.equals(Float.class)) return true;
2	soliveira	178
4	soliveira	179	if (target.equals(double.class) && source.equals(Double.class)) return true;
2	soliveira	180
4	soliveira	181	return false;
2	soliveira	182
4	soliveira	183	}
2	soliveira	184
4	soliveira	185	public static Object tryToConvert(Object source, Class targetType) {
2	soliveira	186
4	soliveira	187	return tryToConvert(source, targetType, false);
		188	}
		189
		190	public static Object tryToConvert(Object source, Class targetType, boolean tryNumber) {
		191
		192	String value = null;
		193
		194	if (source instanceof String) {
		195
		196	value = (String) source;
		197
		198	} else if (tryNumber && source instanceof Number) {
		199
		200	value = source.toString();
		201
		202	} else {
		203
		204	return null;
2	soliveira	205	}
		206
4	soliveira	207	Object newValue = null;
2	soliveira	208
4	soliveira	209	String className = targetType.getName();
2	soliveira	210
4	soliveira	211	if (className.equals("int") \|\| className.equals("java.lang.Integer")) {
		212	int x = -1;
		213	try {
		214	x = Integer.parseInt(value);
		215	} catch (Exception e) {
		216	return null;
		217	}
		218	newValue = new Integer(x);
		219	} else if (className.equals("short") \|\| className.equals("java.lang.Short")) {
		220	short x = -1;
		221	try {
		222	x = Short.parseShort(value);
		223	} catch (Exception e) {
		224	return null;
		225	}
		226	newValue = new Short(x);
2	soliveira	227
4	soliveira	228	} else if (className.equals("char") \|\| className.equals("java.lang.Character")) {
2	soliveira	229
4	soliveira	230	if (value.length() != 1) {
		231	return null;
		232	}
2	soliveira	233
4	soliveira	234	newValue = new Character(value.charAt(0));
2	soliveira	235
4	soliveira	236	} else if (className.equals("long") \|\| className.equals("java.lang.Long")) {
		237	long x = -1;
		238	try {
		239	x = Long.parseLong(value);
		240	} catch (Exception e) {
		241	return null;
		242	}
		243	newValue = new Long(x);
		244	} else if (className.equals("float") \|\| className.equals("java.lang.Float")) {
		245	float x = -1;
		246	try {
		247	x = Float.parseFloat(value);
		248	} catch (Exception e) {
		249	return null;
		250	}
		251	newValue = new Float(x);
		252	} else if (className.equals("double") \|\| className.equals("java.lang.Double")) {
		253	double x = -1;
		254	try {
		255	x = Double.parseDouble(value);
		256	} catch (Exception e) {
		257	return null;
		258	}
		259	newValue = new Double(x);
		260	} else if (className.equals("boolean") \|\| className.equals("java.lang.Boolean")) {
		261	try {
		262	int x = Integer.parseInt(value);
		263	if (x == 1) {
		264	newValue = Boolean.TRUE;
		265	} else if (x == 0) {
		266	newValue = Boolean.FALSE;
2	soliveira	267	} else {
4	soliveira	268	return null;
2	soliveira	269	}
4	soliveira	270	} catch (Exception e) {
		271	if (value.equalsIgnoreCase("true") \|\| value.equals("on")) {
		272	newValue = Boolean.TRUE;
		273	} else if (value.equalsIgnoreCase("false")) {
		274	newValue = Boolean.FALSE;
		275	} else {
		276	return null;
		277	}
		278	}
		279	} else if (targetType.isEnum()) {
2	soliveira	280
4	soliveira	281	try {
2	soliveira	282
4	soliveira	283	newValue = Enum.valueOf(targetType, value);
2	soliveira	284
4	soliveira	285	} catch (Exception e) {
2	soliveira	286
4	soliveira	287	return null;
		288	}
2	soliveira	289
4	soliveira	290	}
2	soliveira	291
4	soliveira	292	return newValue;
2	soliveira	293
4	soliveira	294	}
2	soliveira	295
4	soliveira	296	public static Object shouldConvertToNull(Object value, Class<? extends Object> targetType) {
2	soliveira	297
4	soliveira	298	if (targetType.equals(String.class)) {
2	soliveira	299
4	soliveira	300	return value;
2	soliveira	301
4	soliveira	302	} else if (targetType.isPrimitive()) {
2	soliveira	303
4	soliveira	304	return value;
		305	}
2	soliveira	306
4	soliveira	307	return null;
		308	}
2	soliveira	309
4	soliveira	310	public static Class getPrimitiveFrom(Object w) {
		311	if (w instanceof Boolean) {
		312	return Boolean.TYPE;
		313	} else if (w instanceof Byte) {
		314	return Byte.TYPE;
		315	} else if (w instanceof Short) {
		316	return Short.TYPE;
		317	} else if (w instanceof Character) {
		318	return Character.TYPE;
		319	} else if (w instanceof Integer) {
		320	return Integer.TYPE;
		321	} else if (w instanceof Long) {
		322	return Long.TYPE;
		323	} else if (w instanceof Float) {
		324	return Float.TYPE;
		325	} else if (w instanceof Double) {
		326	return Double.TYPE;
2	soliveira	327	}
4	soliveira	328	return null;
		329	}
2	soliveira	330
4	soliveira	331	public static Class getPrimitiveFrom(Class klass) {
2	soliveira	332
4	soliveira	333	String s = klass.getName();
2	soliveira	334
4	soliveira	335	if (s.equals("java.lang.Boolean")) {
		336	return Boolean.TYPE;
		337	} else if (s.equals("java.lang.Byte")) {
		338	return Byte.TYPE;
		339	} else if (s.equals("java.lang.Short")) {
		340	return Short.TYPE;
		341	} else if (s.equals("java.lang.Character")) {
		342	return Character.TYPE;
		343	} else if (s.equals("java.lang.Integer")) {
		344	return Integer.TYPE;
		345	} else if (s.equals("java.lang.Long")) {
		346	return Long.TYPE;
		347	} else if (s.equals("java.lang.Float")) {
		348	return Float.TYPE;
		349	} else if (s.equals("java.lang.Double")) {
		350	return Double.TYPE;
		351	}
		352	return null;
		353	}
2	soliveira	354
4	soliveira	355	public static Field getField(Object target, String name) {
		356	return getField(target.getClass(), name);
		357	}
2	soliveira	358
4	soliveira	359	public static Field getField(Class<? extends Object> target, String name) {
		360	Field fields[] = target.getDeclaredFields();
		361	for (int i = 0; i < fields.length; i++) {
		362	if (name.equals(fields[i].getName())) {
		363	return fields[i];
		364	}
2	soliveira	365	}
4	soliveira	366	return null;
		367	}
2	soliveira	368
4	soliveira	369	public static Method findMethodToGet(Class<? extends Object> target, String name) {
2	soliveira	370
4	soliveira	371	StringBuffer sb = new StringBuffer(128);
2	soliveira	372
4	soliveira	373	sb.append("get").append(name.substring(0, 1).toUpperCase());
2	soliveira	374
4	soliveira	375	if (name.length() > 1) sb.append(name.substring(1));
		376
		377	try {
		378
		379	return target.getMethod(sb.toString(), (Class[]) null);
		380
		381	} catch (Exception e) {
		382
2	soliveira	383	}
		384
4	soliveira	385	sb.setLength(0);
		386
		387	sb.append("is").append(name.substring(0, 1).toUpperCase());
		388
		389	if (name.length() > 1) {
		390
		391	sb.append(name.substring(1));
2	soliveira	392	}
		393
4	soliveira	394	try {
		395
		396	return target.getMethod(sb.toString(), (Class[]) null);
		397
		398	} catch (Exception e) {
		399
2	soliveira	400	}
		401
4	soliveira	402	return null;
		403	}
2	soliveira	404
4	soliveira	405	public static Method findMethodToInject(Class<? extends Object> target, String name, Class source) {
2	soliveira	406
4	soliveira	407	StringBuffer sb = new StringBuffer(128);
2	soliveira	408
4	soliveira	409	sb.append("set").append(name.substring(0, 1).toUpperCase());
2	soliveira	410
4	soliveira	411	if (name.length() > 1) sb.append(name.substring(1));
2	soliveira	412
4	soliveira	413	String methodName = sb.toString();
2	soliveira	414
4	soliveira	415	Method m = null;
2	soliveira	416
4	soliveira	417	try {
2	soliveira	418
4	soliveira	419	m = FindMethod.getMethod(target, methodName, new Class[] { source });
2	soliveira	420
4	soliveira	421	} catch (Exception e) {
		422	}
2	soliveira	423
4	soliveira	424	if (m == null) {
2	soliveira	425
4	soliveira	426	Class primitive = getPrimitiveFrom(source);
2	soliveira	427
4	soliveira	428	if (primitive != null) {
		429
2	soliveira	430	try {
		431
4	soliveira	432	m = target.getMethod(methodName, new Class[] { primitive });
2	soliveira	433
		434	} catch (Exception e) {
		435	}
		436
4	soliveira	437	}
2	soliveira	438	}
		439
4	soliveira	440	if (m != null) {
		441	m.setAccessible(true);
		442	}
2	soliveira	443
4	soliveira	444	return m;
2	soliveira	445
4	soliveira	446	}
2	soliveira	447
4	soliveira	448	public static Field findFieldToInject(Class<? extends Object> target, String name, Class<? extends Object> source) {
2	soliveira	449
4	soliveira	450	Field f = getField(target, name);
2	soliveira	451
4	soliveira	452	if (f != null) {
2	soliveira	453
4	soliveira	454	Class<?> type = f.getType();
2	soliveira	455
4	soliveira	456	if (type.isAssignableFrom(source) \|\| checkPrimitives(type, source)) {
2	soliveira	457
4	soliveira	458	f.setAccessible(true);
2	soliveira	459
4	soliveira	460	return f;
		461	}
2	soliveira	462
4	soliveira	463	}
2	soliveira	464
4	soliveira	465	return null;
		466	}
2	soliveira	467
4	soliveira	468	private static final boolean isBlank(Object value) {
2	soliveira	469
4	soliveira	470	if (value != null && value instanceof String) {
2	soliveira	471
4	soliveira	472	String s = ((String) value).trim();
2	soliveira	473
4	soliveira	474	if (s.length() == 0) return true;
		475	}
2	soliveira	476
4	soliveira	477	return false;
		478	}
2	soliveira	479
4	soliveira	480	public static boolean inject(Method m, Object target, Object value, boolean tryToConvert, boolean tryingToConvertBoolean) throws Exception {
2	soliveira	481
4	soliveira	482	Class<?> type = m.getParameterTypes()[0];
		483
		484	if (tryingToConvertBoolean) {
		485
		486	if (value == null && (type.equals(Boolean.class) \|\| type.equals(boolean.class))) {
		487
		488	value = Boolean.FALSE;
		489
		490	} else {
		491
		492	// if trying to convert boolean, convert or don't do anything...
		493
		494	return false;
		495
		496	}
2	soliveira	497	}
		498
4	soliveira	499	if (value == null
		500	\|\| (type.isAssignableFrom(value.getClass()) \|\| checkPrimitives(type, value.getClass()) \|\| (tryToConvert && ((isBlank(value) && (value = shouldConvertToNull(value,
		501	type)) == null) \|\| (value = tryToConvert(value, type)) != null)))) {
2	soliveira	502
4	soliveira	503	try {
2	soliveira	504
4	soliveira	505	m.invoke(target, new Object[] { value });
2	soliveira	506
4	soliveira	507	return true;
2	soliveira	508
4	soliveira	509	} catch (Exception e) {
2	soliveira	510
4	soliveira	511	System.err.println("Error injecting by method: " + value + " in " + target + " thru " + m);
2	soliveira	512
4	soliveira	513	e.printStackTrace();
2	soliveira	514
4	soliveira	515	throw e;
2	soliveira	516
4	soliveira	517	}
2	soliveira	518	}
		519
4	soliveira	520	return false;
2	soliveira	521
4	soliveira	522	}
2	soliveira	523
4	soliveira	524	public static boolean hasDefaultConstructor(Class<? extends Object> klass) {
2	soliveira	525
4	soliveira	526	try {
2	soliveira	527
4	soliveira	528	return klass.getConstructor((Class[]) null) != null;
		529
		530	} catch (Exception e) {
		531
		532	return false;
2	soliveira	533	}
4	soliveira	534	}
2	soliveira	535
4	soliveira	536	/*
		537	* This method takes setUsername and returns username.
		538	*
		539	* If we have a prefix, then it returns prefix.username.
		540	*/
		541	private static String adjustName(String name, String prefix) {
2	soliveira	542
4	soliveira	543	StringBuilder sb;
2	soliveira	544
4	soliveira	545	if (name.length() >= 4 && (name.startsWith("get") \|\| name.startsWith("set"))) {
2	soliveira	546
4	soliveira	547	sb = new StringBuilder(name.length() - 3);
		548	sb.append(name.substring(3, 4).toLowerCase());
		549	if (name.length() > 4) sb.append(name.substring(4, name.length()));
2	soliveira	550
4	soliveira	551	} else if (name.length() >= 3 && name.startsWith("is")) {
2	soliveira	552
4	soliveira	553	sb = new StringBuilder(name.length() - 2);
		554	sb.append(name.substring(2, 3).toLowerCase());
		555	if (name.length() > 3) sb.append(name.substring(3, name.length()));
2	soliveira	556
4	soliveira	557	} else {
2	soliveira	558
4	soliveira	559	throw new IllegalArgumentException("Cannot adjust method: " + name);
		560	}
2	soliveira	561
4	soliveira	562	if (prefix != null) {
2	soliveira	563
4	soliveira	564	StringBuffer sb2 = new StringBuffer(128);
2	soliveira	565
4	soliveira	566	return sb2.append(prefix).append(PREFIX_SEPARATOR).append(sb.toString()).toString();
2	soliveira	567
4	soliveira	568	}
2	soliveira	569
4	soliveira	570	return sb.toString();
		571	}
2	soliveira	572
4	soliveira	573	/**
		574	* Extract the value of a property of a bean!
		575	*
		576	* @param bean
		577	* the target bean
		578	* @param nameProperty
		579	* the property name
		580	* @return they value as String. The method toString is always called to
		581	* every property!
		582	* @throws Exception
		583	*/
		584	public static String getProperty(Object bean, String nameProperty) throws Exception {
2	soliveira	585
4	soliveira	586	if (nameProperty == null \|\| nameProperty.equals("")) return null;
2	soliveira	587
4	soliveira	588	String methodName = getter(nameProperty);
2	soliveira	589
4	soliveira	590	Class<? extends Object> clazz = bean.getClass();
		591	Method[] methods = clazz.getMethods();
		592	for (Method method : methods) {
		593	if (method.getName().equals(methodName) && method.getParameterTypes().length == 0) {
		594	Object value = method.invoke(bean, (Object[]) null);
		595	if (value == null) return null;
		596	return value.toString();
		597	}
		598	}
2	soliveira	599
4	soliveira	600	Field[] fields = clazz.getDeclaredFields();
		601	for (Field field : fields) {
		602	field.setAccessible(true);
		603	if (field.getName().equals(nameProperty)) {
		604	Object value = field.get(bean);
		605	if (value == null) return null;
		606	return value.toString();
		607	}
		608	}
		609
		610	return null;
		611	}
		612
		613	private static String getter(String name) {
		614	StringBuilder sb = new StringBuilder(name.length() + 3);
		615
		616	sb.append("get").append(name.substring(0, 1).toUpperCase());
		617
		618	if (name.length() > 1) sb.append(name.substring(1));
		619	return sb.toString();
		620	}
		621
		622	public static void beanToMap(Object bean, Map<String, String> map) throws IllegalArgumentException, IllegalAccessException, InvocationTargetException {
		623	if (bean != null) {
		624
		625	for (Method method : bean.getClass().getMethods()) {
		626	String name = method.getName();
		627
		628	if (name.length() > 3 && name.startsWith("get") && !name.equals("getClass") && method.getParameterTypes().length == 0) {
		629
		630	method.setAccessible(true);
		631	Object value = method.invoke(bean, new Object[0]);
		632	map.put(name, value.toString());
2	soliveira	633	}
4	soliveira	634	}
		635	}
		636	}
2	soliveira	637
4	soliveira	638	public static void getObject(Object target, Container container, boolean tryField, String prefix, boolean tryToConvert, boolean convertBoolean,
		639	boolean allowRecursion) throws Exception {
2	soliveira	640
4	soliveira	641	Class<? extends Object> targetClass = target.getClass();
		642
		643	Map<String, Object> setters, fields;
		644
		645	// see if we have these in cache...
		646
		647	synchronized (settersMaps) {
		648
		649	setters = settersMaps.get(targetClass);
		650
		651	fields = fieldsMaps.get(targetClass);
		652
2	soliveira	653	}
		654
4	soliveira	655	// if not in cache, prepare maps for injection...
2	soliveira	656
4	soliveira	657	if (setters == null) {
2	soliveira	658
4	soliveira	659	setters = new HashMap<String, Object>();
2	soliveira	660
4	soliveira	661	fields = null;
2	soliveira	662
4	soliveira	663	if (tryField) {
		664
		665	fields = new HashMap<String, Object>();
		666
		667	}
		668
		669	prepareForInjection(targetClass, setters, fields);
		670
		671	synchronized (settersMaps) {
		672
		673	settersMaps.put(targetClass, setters);
		674
		675	fieldsMaps.put(targetClass, fields);
		676
		677	}
2	soliveira	678	}
		679
4	soliveira	680	Iterator<String> iter = setters.keySet().iterator();
2	soliveira	681
4	soliveira	682	while (iter.hasNext()) {
2	soliveira	683
4	soliveira	684	String var = iter.next();
2	soliveira	685
4	soliveira	686	boolean hasValue = container.contains(var);
2	soliveira	687
4	soliveira	688	Object value = container.contains(var);
2	soliveira	689
4	soliveira	690	boolean tryingToConvertBoolean = false;
2	soliveira	691
4	soliveira	692	if (value == null && !hasValue) {
		693
		694	if (!convertBoolean) {
		695
		696	continue;
		697
2	soliveira	698	} else {
		699
4	soliveira	700	tryingToConvertBoolean = true;
2	soliveira	701	}
		702
4	soliveira	703	}
2	soliveira	704
4	soliveira	705	// if (value == null) continue;
2	soliveira	706
4	soliveira	707	Object obj = setters.get(var);
2	soliveira	708
4	soliveira	709	// we may have a list of overloaded methods...
		710
		711	List list = null;
		712
		713	Method m = null;
		714
		715	if (obj instanceof List) {
		716
		717	list = (List) obj;
		718
		719	} else {
		720
		721	m = (Method) setters.get(var);
		722
		723	}
		724
		725	if (m != null) {
		726
		727	if (!inject(m, target, value, tryToConvert, tryingToConvertBoolean) && allowRecursion) {
		728
		729	// i did not inject... how about a VO object for this
		730	// setter?
		731
		732	Class<?> type = m.getParameterTypes()[0];
		733
		734	if (!type.getName().startsWith("java.") && !type.isPrimitive() && hasDefaultConstructor(type)) {
		735
		736	Object param = type.newInstance();
		737
		738	InjectionUtils.getObject(param, container, true, prefix, true, true, false); // no
		739	// recursion...
		740
		741	inject(m, target, param, false, false);
		742	}
2	soliveira	743	}
		744
4	soliveira	745	} else {
2	soliveira	746
4	soliveira	747	Iterator it = list.iterator();
2	soliveira	748
4	soliveira	749	boolean injected = false;
2	soliveira	750
4	soliveira	751	while (it.hasNext()) {
		752
		753	m = (Method) it.next();
		754
		755	if (inject(m, target, value, tryToConvert, tryingToConvertBoolean)) {
		756
		757	injected = true;
		758
		759	break;
		760	}
2	soliveira	761	}
		762
4	soliveira	763	if (!injected && allowRecursion) {
		764
		765	// i could not inject anything... how about a VO object for
		766	// this setter...
		767
		768	it = list.iterator();
		769
		770	while (it.hasNext()) {
		771
		772	m = (Method) it.next();
		773
		774	Class<?> type = m.getParameterTypes()[0];
		775
		776	if (!type.getName().startsWith("java.") && !type.isPrimitive() && hasDefaultConstructor(type)) {
		777
		778	Object param = type.newInstance();
		779
		780	InjectionUtils.getObject(param, container, true, prefix, true, true, false); // no
		781	// recursion...
		782
		783	if (inject(m, target, param, false, false)) {
		784
		785	break; // done...
		786	}
2	soliveira	787	}
4	soliveira	788	}
2	soliveira	789	}
4	soliveira	790	}
2	soliveira	791	}
		792
4	soliveira	793	if (fields != null) {
2	soliveira	794
4	soliveira	795	iter = fields.keySet().iterator();
2	soliveira	796
4	soliveira	797	while (iter.hasNext()) {
2	soliveira	798
4	soliveira	799	String var = iter.next();
2	soliveira	800
4	soliveira	801	boolean hasValue = container.contains(var);
2	soliveira	802
4	soliveira	803	Object value = container.get(var);
2	soliveira	804
4	soliveira	805	Field f = (Field) fields.get(var);
		806
		807	Class<?> type = f.getType();
		808
		809	// If there is no value in the action input, assume false for
		810	// booleans...
		811	// (checkboxes and radio buttons are not send when not
		812	// marked...)
		813
		814	if (convertBoolean && value == null && !hasValue) {
		815
		816	if (type.equals(Boolean.class) \|\| type.equals(boolean.class)) {
		817
		818	value = Boolean.FALSE;
		819	}
		820
2	soliveira	821	}
4	soliveira	822
		823	if (value == null && !hasValue) continue;
		824
		825	// if (value == null) continue;
		826
		827	if (value == null
		828	\|\| (type.isAssignableFrom(value.getClass()) \|\| checkPrimitives(type, value.getClass()) \|\| (tryToConvert && ((isBlank(value) && (value = shouldConvertToNull(
		829	value, type)) == null) \|\| (value = tryToConvert(value, type)) != null)))) {
		830
		831	try {
		832
		833	f.set(target, value);
		834
		835	} catch (Exception e) {
		836
		837	System.err.println("Error injecting by field: " + value + " in " + target);
		838
		839	e.printStackTrace();
		840
		841	throw e;
		842
		843	}
		844	}
		845	}
2	soliveira	846	}
4	soliveira	847	}
2	soliveira	848	}

MentaContainer

(root)/trunk/src/main/java/org/mentacontainer/util/InjectionUtils.java - Rev 4