/** Returns the static method defined in an element, or null if failed. */
/*package*/ static MethodInfo getMethodInfo(Element el) {
final String clsnm = IDOMs.getRequiredAttributeValue(el, "class");
final String sig = IDOMs.getRequiredAttributeValue(el, "signature");
final Class cls;
try {
cls = Classes.forNameByThread(clsnm);
} catch (ClassNotFoundException ex) {
log.error("Class not found: " + clsnm + ", " + el.getLocator());
return null; // to report as many errors as possible
}
try {
final Method mtd = Classes.getMethodBySignature(cls, sig, null);
if ((mtd.getModifiers() & Modifier.STATIC) == 0) {
log.error("Not a static method: " + mtd);
return null;
}
final Object[] args = new Object[mtd.getParameterTypes().length];
for (int j = 0; j < args.length; ++j) args[j] = el.getAttributeValue("arg" + j);
return new MethodInfo(mtd, args);
} catch (ClassNotFoundException ex) {
log.realCauseBriefly(
"Unable to load class when resolving " + sig + " " + el.getLocator(), ex);
} catch (NoSuchMethodException ex) {
log.error("Method not found in " + clsnm + ": " + sig + " " + el.getLocator());
}
return null;
}
/**
* Instantiates the specified class, and two arguments.
*
* @param o the class name or class
* @param arg1 the first argument
* @param arg2 the second argument
* @since 5.0.5
*/
public static final Object new_(Object o, Object arg1, Object arg2) throws Exception {
if (o instanceof String) {
return Classes.newInstance(Classes.forNameByThread((String) o), new Object[] {arg1, arg2});
} else if (o instanceof Class) {
return Classes.newInstance((Class) o, new Object[] {arg1, arg2});
} else {
throw new IllegalArgumentException("Unknow object for new: " + o);
}
}
private BookCtrl getBookCtrl() {
BookCtrl ctrl = _bookCtrl;
if (ctrl == null)
synchronized (this) {
ctrl = _bookCtrl;
if (ctrl == null) {
String clsnm = Library.getProperty(BookCtrl.CLASS);
if (clsnm != null)
try {
final Object o = Classes.newInstanceByThread(clsnm);
if (!(o instanceof BookCtrl))
throw new UiException(
o.getClass().getName() + " must implement " + BookCtrl.class.getName());
ctrl = (BookCtrl) o;
} catch (UiException ex) {
throw ex;
} catch (Throwable ex) {
throw UiException.Aide.wrap(ex, "Unable to load " + clsnm);
}
if (ctrl == null) ctrl = new BookCtrlImpl();
_bookCtrl = ctrl;
}
}
return ctrl;
}
/**
* Returns the label or message of the specified key.
*
* <ul>
* <li>If key is "mesg:class:MMM", Messages.get(class.MMM) is called
* <li>Otherwise, {@link Labels#getLabel(String)} is called.
* </ul>
*
* @see #getLabel(String, Object[])
*/
public static final String getLabel(String key) {
if (key == null) return "";
if (key.startsWith("mesg:")) {
final int j = key.lastIndexOf(':');
if (j > 5) {
final String clsnm = key.substring(5, j);
final String fldnm = key.substring(j + 1);
try {
final Class cls = Classes.forNameByThread(clsnm);
final Field fld = cls.getField(fldnm);
return Messages.get(((Integer) fld.get(null)).intValue());
} catch (ClassNotFoundException ex) {
log.warn("Class not found: " + clsnm, ex);
} catch (NoSuchFieldException ex) {
log.warn("Field not found: " + fldnm, ex);
} catch (IllegalAccessException ex) {
log.warn("Field not accessible: " + fldnm, ex);
}
} else if (log.isDebugEnabled()) {
log.debug("Not a valid format: " + key);
}
}
return Labels.getLabel(key);
}
private Object resolveParameter(java.lang.annotation.Annotation[] parmAnnos, Class<?> paramType) {
Object val = null;
boolean hitResolver = false;
Default defAnno = null;
for (Annotation anno : parmAnnos) {
Class<?> annotype = anno.annotationType();
if (defAnno == null && annotype.equals(Default.class)) {
defAnno = (Default) anno;
continue;
}
ParamResolver<Annotation> resolver = _paramResolvers.get(annotype);
if (resolver == null) continue;
hitResolver = true;
val = resolver.resolveParameter(anno, paramType);
if (val != null) {
break;
}
// don't break until get a value
}
if (val == null && defAnno != null) {
val = Classes.coerce(paramType, defAnno.value());
}
// to compatible to rc2, do we have to?
if (_mappingType && val == null && !hitResolver && _types != null) {
for (Type type : _types) {
if (type != null && paramType.isAssignableFrom(type.clz)) {
val = type.value;
break;
}
}
}
return val;
}
@SuppressWarnings("unchecked")
private static <T> Class<? extends T> locateClass(String clsnm, Class<?>... clses)
throws Exception {
final Class<?> c = Classes.forNameByThread(clsnm);
if (clses != null)
for (Class<?> cls : clses)
if (!cls.isAssignableFrom(c)) throw new UiException(c + " must implement " + cls);
return (Class<? extends T>) c;
}
/** Instantiates the specified class. */
public static final Object new_(Object o) throws Exception {
if (o instanceof String) {
return Classes.newInstanceByThread((String) o);
} else if (o instanceof Class) {
return ((Class) o).newInstance();
} else {
throw new IllegalArgumentException("Unknow object for new: " + o);
}
}
@SuppressWarnings("unchecked")
private void setThreadLocals() {
if (_threadLocals != null) {
try {
Class cls =
Classes.forNameByThread(
"org.springframework.transaction.support.TransactionSynchronizationManager");
getThreadLocal(cls, "resources").set(_threadLocals[0]);
getThreadLocal(cls, "synchronizations").set(_threadLocals[1]);
getThreadLocal(cls, "currentTransactionName").set(_threadLocals[2]);
getThreadLocal(cls, "currentTransactionReadOnly").set(_threadLocals[3]);
getThreadLocal(cls, "actualTransactionActive").set(_threadLocals[4]);
// 20070907, Henri Chen: bug 1785457, hibernate3 might not used
try {
cls = Classes.forNameByThread("org.springframework.orm.hibernate3.SessionFactoryUtils");
getThreadLocal(cls, "deferredCloseHolder").set(_threadLocals[5]);
} catch (ClassNotFoundException ex) {
// ignore if hibernate 3 is not used.
}
cls =
Classes.forNameByThread(
"org.springframework.transaction.interceptor.TransactionAspectSupport");
// Spring 1.2.8 and Spring 2.0.x, the ThreadLocal field name has changed, default use 2.0.x
// 2.0.x transactionInfoHolder
// 1.2.8 currentTransactionInfo
try {
getThreadLocal(cls, "transactionInfoHolder").set(_threadLocals[6]);
} catch (SystemException ex) {
if (ex.getCause() instanceof NoSuchFieldException) {
getThreadLocal(cls, "currentTransactionInfo").set(_threadLocals[6]);
} else {
throw ex;
}
}
_threadLocals = null;
} catch (ClassNotFoundException ex) {
throw UiException.Aide.wrap(ex);
}
}
}
private Comparator toComparator(String clsnm)
throws ClassNotFoundException, InstantiationException, IllegalAccessException {
if (clsnm == null || clsnm.length() == 0) return null;
final Page page = getPage();
final Class cls = page != null ? page.resolveClass(clsnm) : Classes.forNameByThread(clsnm);
if (cls == null) throw new ClassNotFoundException(clsnm);
if (!Comparator.class.isAssignableFrom(cls))
throw new UiException("Comparator must be implemented: " + clsnm);
return (Comparator) cls.newInstance();
}
private Object evaluate0(Object self, String expr, Class<?> expectedType, Page page) {
if (expr == null || expr.length() == 0 || expr.indexOf("${") < 0) {
if (expectedType == Object.class || expectedType == String.class) return expr;
return Classes.coerce(expectedType, expr);
}
final Evaluator eval = getEvaluator(page, null);
final Expression expression = eval.parseExpression(expr, expectedType);
return self instanceof Page
? eval.evaluate((Page) self, expression)
: eval.evaluate((Component) self, expression);
}
/** Tests whether an object, o, is an instance of a class, c. */
public static boolean isInstance(Object c, Object o) {
if (c instanceof Class) {
return ((Class) c).isInstance(o);
} else if (c instanceof String) {
try {
return Classes.forNameByThread((String) c).isInstance(o);
} catch (ClassNotFoundException ex) {
throw new IllegalArgumentException("Class not found: " + c);
}
} else {
throw new IllegalArgumentException("Unknown class: " + c);
}
}
@SuppressWarnings("unchecked")
private Validator getValidator() throws Exception {
if (_target == null) {
synchronized (this) {
if (_target == null) {
if (_clz == null) {
_clz = (Class<Validator>) Classes.forNameByThread(_clzName);
}
_target = (Validator) _clz.newInstance();
}
}
}
return _target;
}
/**
* Returns the XML resources locator to locate metainfo/zk/config.xml, metainfo/zk/lang.xml, and
* metainfo/zk/lang-addon.xml
*/
public static XMLResourcesLocator getXMLResourcesLocator() {
if (_xmlloc == null) {
final String clsnm = Library.getProperty("org.zkoss.zk.ui.sys.XMLResourcesLocator.class");
if (clsnm != null) {
try {
return _xmlloc = (XMLResourcesLocator) Classes.newInstanceByThread(clsnm);
} catch (Throwable ex) {
log.warn("Unable to load " + clsnm, ex);
}
}
_xmlloc = new ClassLocator();
}
return _xmlloc;
}
/**
* Instantiates a composer of the given object. This method will invoke {@link
* org.zkoss.zk.ui.sys.UiFactory#newComposer} to instantiate the composer if page is not null.
*
* @param page the page that the composer will be created for. Ignored if null.
* @param o the composer instance, the class of the composer to instantiate, or the name of the
* class of the composer. If <code>o</code> is an instance of {@link Composer}, it is returned
* directly.
*/
public static Composer newComposer(Page page, Object o) throws Exception {
Class cls;
if (o instanceof String) {
final String clsnm = ((String) o).trim();
if (page != null)
return ((WebAppCtrl) page.getDesktop().getWebApp()).getUiFactory().newComposer(page, clsnm);
cls = Classes.forNameByThread(clsnm);
} else if (o instanceof Class) {
cls = (Class) o;
if (page != null)
return ((WebAppCtrl) page.getDesktop().getWebApp()).getUiFactory().newComposer(page, cls);
} else return (Composer) o;
return (Composer) cls.newInstance();
}
private static Extension getExtension() {
if (_ext == null) {
synchronized (BindUiLifeCycle.class) {
if (_ext == null) {
String clsnm = Library.getProperty("org.zkoss.bind.tracker.impl.extension");
if (clsnm != null) {
try {
_ext = (Extension) Classes.newInstanceByThread(clsnm);
} catch (Throwable ex) {
log.realCauseBriefly("Unable to instantiate " + clsnm, ex);
}
}
if (_ext == null) _ext = new DefaultExtension();
}
}
}
return _ext;
}
/**
* Set the {@link TypeConverter}.
*
* @param cvtClsName the converter class name.
*/
/*package*/ void setConverter(String cvtClsName) {
if (cvtClsName != null) {
// bug #2129992
Class cls = null;
if (_comp == null || _comp.getPage() == null) {
try {
cls = Classes.forNameByThread(cvtClsName);
} catch (ClassNotFoundException ex) {
throw UiException.Aide.wrap(ex);
}
} else {
try {
cls = _comp.getPage().resolveClass(cvtClsName);
} catch (ClassNotFoundException ex) {
throw UiException.Aide.wrap(ex);
}
}
try {
_converter = (TypeConverter) cls.newInstance();
} catch (Exception ex) {
throw UiException.Aide.wrap(ex);
}
}
}
/** Converts the specified object to an character. */
public static char toChar(Object val) {
return ((Character) Classes.coerce(char.class, val)).charValue();
}
/** Converts the specified object to a (big) decimal. */
public static BigDecimal toDecimal(Object val) {
return (BigDecimal) Classes.coerce(BigDecimal.class, val);
}
/** Converts the specified object to an integer. */
public static int toInt(Object val) {
return ((Integer) Classes.coerce(int.class, val)).intValue();
}
/** Converts the specified object to a number. */
public static Number toNumber(Object val) {
return (Number) Classes.coerce(Number.class, val);
}
/** Converts the specified object to a string. */
public static String toString(Object val) {
return (String) Classes.coerce(String.class, val);
}
/** Converts the specified object to a boolean. */
public static boolean toBoolean(Object val) {
return ((Boolean) Classes.coerce(boolean.class, val)).booleanValue();
}
private void myLoadAttribute(Component comp, Object bean) {
try {
// since 3.1, 20080416, support bindingArgs for non-supported tag
// bug #2803575, merge bindingArgs together since a component can have
// multiple bindings on different attributes.
Map<Object, Object> bindArgs = cast((Map) comp.getAttribute(DataBinder.ARGS));
if (bindArgs == null) {
bindArgs = new HashMap<Object, Object>();
comp.setAttribute(DataBinder.ARGS, bindArgs);
}
if (_args != null) {
bindArgs.putAll(_args);
comp.setAttribute(_attr + "_" + DataBinder.ARGS, _args);
}
if (_converter != null) {
bean = _converter.coerceToUi(bean, comp);
if (bean == TypeConverter.IGNORE) return; // ignore, so don't do Fields.set()
}
// Bug #1876198 Error msg appears when load page (databind+CustomConstraint)
// catching WrongValueException no longer works, check special case and
// use setRowValue() method directly
if ((comp instanceof InputElement) && "value".equals(_attr)) {
Object value = bean;
Object oldv = null;
try { // Bug 1879389
final Method m = comp.getClass().getMethod("getValue");
oldv = ((InputElement) comp).getRawValue();
value = Classes.coerce(m.getReturnType(), bean);
} catch (NoSuchMethodException ex) { // ignore it
}
// See both Bug 3000305 and 2874098
Fields.set(comp, "rawValue", value, _converter == null);
} else {
Fields.set(comp, _attr, bean, _converter == null);
}
} catch (ClassCastException ex) {
throw UiException.Aide.wrap(ex);
} catch (NoSuchMethodException ex) {
// Bug #1813278, Annotations do not work with xhtml tags
if (comp instanceof DynamicPropertied) {
final DynamicPropertied dpcomp = (DynamicPropertied) comp;
if (dpcomp.hasDynamicProperty(_attr)) {
// no way to know destination type of the property, use bean as is
dpcomp.setDynamicProperty(_attr, bean);
} else {
throw UiException.Aide.wrap(ex);
}
} else { // Feature# 2855116. Save into component custom-attribute(also a variable in ZK5).
comp.setAttribute(_attr, bean);
}
// Bug #1876198 Error msg appears when load page (databind+CustomConstraint)
// catching WrongValueException no longer works, so mark it out
/*} catch (WrongValueException ex) {
//Bug #1615371, try to use setRawValue()
if ("value".equals(_attr)) {
try {
Fields.set(comp, "rawValue", bean, _converter == null);
} catch (Exception ex1) {
//exception
throw ex;
}
} else {
throw ex;
}
*/
}
}
// Servlet//
public void init() throws ServletException {
final ServletConfig config = getServletConfig();
final ServletContext ctx = getServletContext();
ctx.setAttribute(ATTR_UPDATE_SERVLET, this);
final WebManager webman = WebManager.getWebManager(ctx);
String param = config.getInitParameter("compress");
_compress = param == null || param.length() == 0 || "true".equals(param);
if (!_compress) webman.getClassWebResource().setCompress(null); // disable all
// Copies au extensions defined before DHtmlUpdateServlet is started
final WebApp wapp = webman.getWebApp();
final Map aues = (Map) wapp.getAttribute(ATTR_AU_PROCESSORS);
if (aues != null) {
for (Iterator it = aues.entrySet().iterator(); it.hasNext(); ) {
final Map.Entry me = (Map.Entry) it.next();
addAuExtension((String) me.getKey(), (AuExtension) me.getValue());
}
wapp.removeAttribute(ATTR_AU_PROCESSORS);
}
// ZK 5: extension defined in init-param has the higher priority
for (int j = 0; ; ++j) {
param = config.getInitParameter("extension" + j);
if (param == null) {
param = config.getInitParameter("processor" + j); // backward compatible
if (param == null) break;
}
final int k = param.indexOf('=');
if (k < 0) {
log.warning("Ignore init-param: illegal format, " + param);
continue;
}
final String prefix = param.substring(0, k).trim();
final String clsnm = param.substring(k + 1).trim();
try {
addAuExtension(prefix, (AuExtension) Classes.newInstanceByThread(clsnm));
} catch (ClassNotFoundException ex) {
log.warning("Ignore init-param: class not found, " + clsnm);
} catch (ClassCastException ex) {
log.warning("Ignore: " + clsnm + " not implement " + AuExtension.class);
} catch (Throwable ex) {
log.warning("Ignore init-param: failed to add an AU extension, " + param, ex);
}
}
if (getAuExtension("/upload") == null) {
try {
addAuExtension("/upload", new AuUploader());
} catch (Throwable ex) {
final String msg = "Make sure commons-fileupload.jar is installed.";
log.warningBriefly("Failed to configure fileupload. " + msg, ex);
// still add /upload to generate exception when fileupload is used
addAuExtension(
"/upload",
new AuExtension() {
public void init(DHtmlUpdateServlet servlet) {}
public void destroy() {}
public void service(
HttpServletRequest request, HttpServletResponse response, String pi)
throws ServletException, IOException {
if (Sessions.getCurrent(false) != null)
throw new ServletException("Failed to upload. " + msg);
}
});
}
}
if (getAuExtension("/view") == null) addAuExtension("/view", new AuDynaMediar());
}
