[richfaces-svn-commits] JBoss Rich Faces SVN: r15931 - in tags: rf_363451/framework/impl/src/main/java/org/ajax4jsf/renderkit/compiler and 1 other directory.

Author: konstantin.mishin Date: 2009-11-19 14:15:29 -0500 (Thu, 19 Nov 2009) New Revision: 15931 Added: tags/rf_363451/ Modified: tags/rf_363451/framework/impl/src/main/java/org/ajax4jsf/renderkit/compiler/MethodCallElement.java Log: RFPL-252 Copied: tags/rf_363451 (from rev 15930, branches/enterprise/3.3.X) Modified: tags/rf_363451/framework/impl/src/main/java/org/ajax4jsf/renderkit/compiler/MethodCallElement.java =================================================================== --- branches/enterprise/3.3.X/framework/impl/src/main/java/org/ajax4jsf/renderkit/compiler/MethodCallElement.java 2009-11-19 16:13:11 UTC (rev 15930) +++ tags/rf_363451/framework/impl/src/main/java/org/ajax4jsf/renderkit/compiler/MethodCallElement.java 2009-11-19 19:15:29 UTC (rev 15931) @@ -31,73 +31,88 @@ import java.util.Map; import javax.faces.FacesException; +import javax.faces.context.FacesContext; import javax.faces.el.MethodNotFoundException; +import javax.faces.render.Renderer; import org.ajax4jsf.Messages; +import org.ajax4jsf.renderkit.RendererBase; +import org.ajax4jsf.renderkit.RendererUtils; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.xml.sax.SAXException; - /** * @author asmirnov(a)exadel.com (latest modification by $Author: alexsmirnov $) * @version $Revision: 1.1.2.1 $ $Date: 2007/01/09 18:57:47 $ - * + * */ -public class MethodCallElement extends ElementBase { +public class MethodCallElement extends ElementBase { public static final String UTILS_PREFIX = "utils."; - + static final Log _log = LogFactory.getLog(MethodCallElement.class); private String _name = null; - - private List parameters = new ArrayList(); - - private Invoker invoker = new Invoker(); - - private MethodCacheState state = new MethodCacheState(); - - - /* (non-Javadoc) - * @see org.ajax4jsf.renderkit.compiler.CompiledXML#encode(javax.faces.render.Renderer, javax.faces.context.FacesContext, javax.faces.component.UIComponent) + + private List<MethodParameterElement> parameters = new ArrayList<MethodParameterElement>( + 3); + + private volatile Invoker invoker; + + /* + * (non-Javadoc) + * + * @see + * org.ajax4jsf.renderkit.compiler.CompiledXML#encode(javax.faces.render + * .Renderer, javax.faces.context.FacesContext, + * javax.faces.component.UIComponent) */ - public void encode(TemplateContext context ) throws IOException { - getValue(context); + public void encode(TemplateContext context) throws IOException { + getValue(context); } - /* (non-Javadoc) - * @see org.ajax4jsf.renderkit.compiler.ElementBase#encode(org.ajax4jsf.renderkit.compiler.TemplateContext, java.lang.String) + /* + * (non-Javadoc) + * + * @see + * org.ajax4jsf.renderkit.compiler.ElementBase#encode(org.ajax4jsf.renderkit + * .compiler.TemplateContext, java.lang.String) */ - public void encode(TemplateContext context, String breakPoint) throws IOException { + public void encode(TemplateContext context, String breakPoint) + throws IOException { // Text not contain breakpoints. encode(context); } - - + public Object getValue(TemplateContext context) throws FacesException { + if (null == invoker) { + throw new FacesException(Messages + .getMessage(Messages.RENDERER_METHOD_NOT_SET_ERROR)); + } // prepare method params. we attempt to call 3 signatures : // a) name(FacesContext,UIComponent [, param0...]) // b) name(TempalateContext [,param0...]) // c) name([param0...]) - state.init(parameters); - Object[] values = state.computeParameterValues(context); - - InvokeData data = null; - synchronized (state) { - state.update(context, values, invoker); - data = invoker.invokeMethod(context, state); - } - return invoker.invokeMethod(data); + Object[] values = computeParameterValues(context); + + return invoker.invokeMethod(context, values); // perform childrens. // super.encode(renderer,context,component); } + public Object[] computeParameterValues(TemplateContext context) { + Object[] ps = new Object[parameters.size()]; + for (int i = 0; i < ps.length; i++) { + ps[i] = parameters.get(i).valueGetter.getValueOrDefault(context); + } + return ps; + } - - public void addParameter(MethodParameterElement parameter){ + public void addParameter(MethodParameterElement parameter) { parameters.add(parameter); } + /** * @return Returns the methodName. */ @@ -106,13 +121,14 @@ } /** - * @param methodName The methodName to set. + * @param methodName + * The methodName to set. */ public void setName(String methodName) { - if(methodName.startsWith(UTILS_PREFIX)){ + if (methodName.startsWith(UTILS_PREFIX)) { this._name = methodName.substring(UTILS_PREFIX.length()); this.invoker = getRendererUtilsInvoker(_name); - } else if(methodName.indexOf('.') >= 0) { + } else if (methodName.indexOf('.') >= 0) { this._name = methodName; this.invoker = getStaticInvoker(_name); } else { @@ -121,385 +137,430 @@ } } - static Map staticInvokers = new HashMap(); - - public StaticInvoker getStaticInvoker(String methodName) { - StaticInvoker invoker = (StaticInvoker)staticInvokers.get(methodName); - if(invoker == null) { - invoker = new StaticInvoker(methodName); - staticInvokers.put(methodName, invoker); - } - return invoker; + public Invoker getStaticInvoker(String methodName) { + StaticInvoker invoker = new StaticInvoker(methodName); + return invoker; } - static Map rendererInvokers = new HashMap(); - - public RendererInvoker getRendererInvoker(String methodName) { - RendererInvoker invoker = (RendererInvoker)rendererInvokers.get(methodName); - if(invoker == null) { - invoker = new RendererInvoker(false, methodName); - rendererInvokers.put(methodName, invoker); - } + public Invoker getRendererInvoker(String methodName) { + RendererInvoker invoker = new RendererInvoker(methodName); return invoker; } - - static Map utilsInvokers = new HashMap(); - public RendererInvoker getRendererUtilsInvoker(String methodName) { - RendererInvoker invoker = (RendererInvoker)utilsInvokers.get(methodName); - if(invoker == null) { - invoker = new RendererInvoker(true, methodName); - utilsInvokers.put(methodName, invoker); - } + public Invoker getRendererUtilsInvoker(String methodName) { + RendererInvoker invoker = new RendererUtilsInvoker(methodName); return invoker; } - + public String getTag() { - return HtmlCompiler.NS_PREFIX+HtmlCompiler.CALL_TAG; + return HtmlCompiler.NS_PREFIX + HtmlCompiler.CALL_TAG; } - - /* (non-Javadoc) - * @see org.ajax4jsf.renderkit.compiler.ElementBase#setParent(org.ajax4jsf.renderkit.compiler.PreparedTemplate) + /* + * (non-Javadoc) + * + * @see + * org.ajax4jsf.renderkit.compiler.ElementBase#setParent(org.ajax4jsf.renderkit + * .compiler.PreparedTemplate) */ - public void setParent(PreparedTemplate parent) throws SAXException { + public void setParent(PreparedTemplate parent) throws SAXException { super.setParent(parent); - if (getName()==null) { - throw new SAXException(Messages.getMessage(Messages.NO_NAME_ATTRIBUTE_ERROR, getTag())); + if (getName() == null) { + throw new SAXException(Messages.getMessage( + Messages.NO_NAME_ATTRIBUTE_ERROR, getTag())); } } - -/* (non-Javadoc) - * @see org.ajax4jsf.renderkit.compiler.ElementBase#getString(org.ajax4jsf.renderkit.compiler.TemplateContext) + /* + * (non-Javadoc) + * + * @see + * org.ajax4jsf.renderkit.compiler.ElementBase#getString(org.ajax4jsf.renderkit + * .compiler.TemplateContext) */ public String getString(TemplateContext context) throws FacesException { Object result = getValue(context); - if (null == result || result.toString().length()==0) { - result = ""; + if (null == result || result.toString().length() == 0) { + result = ""; } return result.toString(); } - /* (non-Javadoc) + /* + * (non-Javadoc) + * * @see org.ajax4jsf.renderkit.compiler.ElementBase#getAllowedClasses() */ - protected Class[] getAllowedClasses() { - // TODO Auto-generated method stub - return new Class[]{ - MethodParameterElement.class, - ResourceElement.class - }; + @SuppressWarnings("unchecked") + protected Class<? extends ElementBase>[] getAllowedClasses() { + return new Class[] { MethodParameterElement.class, + ResourceElement.class }; } } -class InvokeData { - TemplateContext context; - Method method; - Object object; - Object[] arguments; - InvokeData(TemplateContext context, Method method, Object object, Object[] arguments) { - this.context = context; - this.method = method; - this.object = object; - this.arguments = (Object[]) arguments.clone(); - } -} +abstract class Invoker { -class Invoker { - String methodName; + protected volatile Signature current; - InvokeData invokeMethod(TemplateContext context, MethodCacheState state) { - throw new FacesException(Messages.getMessage(Messages.RENDERER_METHOD_NOT_SET_ERROR)); + protected String methodName; + + public Invoker(String name) { + this.methodName = name; } - void handleInvocationTargetException(TemplateContext context, InvocationTargetException e) {} - void handleIllegalAccessException(TemplateContext context, IllegalAccessException e) {} - void handleMethodNotFoundException(TemplateContext context) throws MethodNotFoundException {} - - InvokeData invokeMethod(TemplateContext context, Map methods, Class cls, Object object, MethodCacheState state) { - Method method = provideMethod(methods, cls, object, state); - return new InvokeData(context, method, object, state.current.arguments); - } - - Object invokeMethod(InvokeData data) { - if(data.method != null) { + public Object invokeMethod(TemplateContext context, Object[] parameters) { + Object result = null; + Class<?>[] parameterTypes = new Class[parameters.length]; + for (int i = 0; i < parameters.length; i++) { + Object parameter = parameters[i]; + if (null != parameter) { + parameterTypes[i] = parameter.getClass(); + } + } + // Use a copy to avoid synchronization. + Signature signature = current; + if (null == signature + || !signature.isApplicable(context, getInvokedClass(context), + parameterTypes)) { + // Clalculate target signature + signature = provideMethod(context, parameterTypes); + current = signature; + } try { - return data.method.invoke(data.object, data.arguments); + result = signature.invoke(context, getInvokedObject(context), + parameters); + } catch (IllegalArgumentException e) { + throw new FacesException(e); + } catch (IllegalAccessException e) { + handleIllegalAccessException(context, e); } catch (InvocationTargetException e) { - handleInvocationTargetException(data.context, e); - } catch (IllegalAccessException e) { - handleIllegalAccessException(data.context, e); + handleInvocationTargetException(context, e); } - } - handleMethodNotFoundException(data.context); - return null; + return result; } - - public Class getInvokedClass(TemplateContext context) { - return null; - } - - private Method provideMethod(Map methods, Class cls, Object object, MethodCacheState state) { - if(state.method != null) return state.method; - if(methods.size() > 0) { - for (int i = 0; i < state.signatures.length; i++) { - state.method = (Method)methods.get(getClassesKey(state.signatures[i].arguments)); - if(state.method != null) { - state.current = state.signatures[i]; - return state.method; + abstract void handleInvocationTargetException(TemplateContext context, + InvocationTargetException e); + + abstract void handleIllegalAccessException(TemplateContext context, + IllegalAccessException e); + + abstract void handleMethodNotFoundException(TemplateContext context); + + public abstract Class<?> getInvokedClass(TemplateContext context); + + public abstract Object getInvokedObject(TemplateContext context); + + protected Signature provideMethod(TemplateContext context, + Class<?>[] parameterTypes) { + Class<?> cls = getInvokedClass(context); + if (null != cls) { + // TODO - cache signatures ? + Object object = getInvokedObject(context); + Method[] methods = cls.getMethods(); + for (int m = 0; m < methods.length; m++) { + if (methods[m].getName().equals(methodName) + && (object != null || Modifier.isStatic(methods[m] + .getModifiers()))) { + Signature s = new Signature0(methods[m]); + if (s.isApplicable(context, cls, parameterTypes)) { + return s; + } + s = new Signature1(methods[m]); + if (s.isApplicable(context, cls, parameterTypes)) { + return s; + } + s = new Signature2(methods[m]); + if (s.isApplicable(context, cls, parameterTypes)) { + return s; + } } } } - - if(cls == null && object != null) cls = object.getClass(); - Method[] ms = cls.getMethods(); - for (int m = 0; m < ms.length; m++) { - if(!ms[m].getName().equals(methodName)) continue; - if(object == null && !Modifier.isStatic(ms[m].getModifiers())) continue; - Class[] cs = ms[m].getParameterTypes(); - Signature s = getMatchingArguments(cs, state.signatures); - if(s == null) continue; - state.current = s; - state.method = ms[m]; - methods.put(getClassesKey(s.arguments), ms[m]); - return state.method; - } - + handleMethodNotFoundException(context); return null; } - private String getClassesKey(Object[] args) { - StringBuffer sb = new StringBuffer(); - for (int i = 0; i < args.length; i++) { - String dk = args[i] == null ? "null" : args[i].getClass().getName(); - sb.append(";").append(dk); - } - return sb.toString(); - } - - private Signature getMatchingArguments(Class[] cs, Signature[] sgs) { - for (int i = 0; i < sgs.length; i++) { - if(isMatching(cs, sgs[i].arguments)) return sgs[i]; - } - return null; - } - - static boolean isMatching(Class[] cs, Object[] args) { - if(cs.length != args.length) return false; + static boolean isMatching(Class<?>[] cs, Class<?>[] args) { + if (cs.length != args.length) + return false; for (int i = 0; i < cs.length; i++) { - if(args[i] != null && !cs[i].isAssignableFrom(args[i].getClass())) return false; + if (args[i] != null && !cs[i].isAssignableFrom(args[i])) + return false; } return true; } } class RendererInvoker extends Invoker { - boolean utils = false; - Map renderers = new HashMap(); - - public RendererInvoker(boolean utils, String methodName) { - this.utils = utils; - this.methodName = methodName; + + public RendererInvoker(String methodName) { + super(methodName); } - public Class getInvokedClass(TemplateContext context) { + public Class<? extends Object> getInvokedClass(TemplateContext context) { Object object = getInvokedObject(context); - return (object != null) ? object.getClass() : null; + return (object != null) ? object.getClass() : Renderer.class; } - - private Object getInvokedObject(TemplateContext context) { - if(utils) { - return context.getRenderer().getUtils(); - } else { - return context.getRenderer(); - } + + public Object getInvokedObject(TemplateContext context) { + return context.getRenderer(); } - - InvokeData invokeMethod(TemplateContext context, MethodCacheState state) { + + void handleInvocationTargetException(TemplateContext context, + InvocationTargetException e) { + String logMessage = Messages.getMessage(Messages.METHOD_CALL_ERROR_1a, + methodName, context.getComponent().getId()); + String excMessage = Messages.getMessage(Messages.METHOD_CALL_ERROR_2a, + new Object[] { methodName, context.getComponent().getId(), + e.getCause().getMessage() }); + MethodCallElement._log.error(logMessage, e); + throw new FacesException(excMessage, e); + } + + void handleIllegalAccessException(TemplateContext context, + IllegalAccessException e) { + String logMessage = Messages.getMessage(Messages.getMessage( + Messages.METHOD_CALL_ERROR_3a, methodName, context + .getComponent().getId())); + String excMessage = Messages.getMessage(Messages.getMessage( + Messages.METHOD_CALL_ERROR_4a, new Object[] { methodName, + context.getComponent().getId(), + e.getCause().getMessage() })); + MethodCallElement._log.error(logMessage, e); + throw new FacesException(excMessage, e); + } + + void handleMethodNotFoundException(TemplateContext context) + throws MethodNotFoundException { + String logMessage = Messages.getMessage(Messages.getMessage( + Messages.METHOD_CALL_ERROR_5a, methodName, context + .getComponent().getId())); + String excMessage = Messages.getMessage(Messages.getMessage( + Messages.METHOD_CALL_ERROR_6a, methodName)); + MethodCallElement._log.error(logMessage); + throw new FacesException(excMessage); + } +} + +class RendererUtilsInvoker extends RendererInvoker { + + public RendererUtilsInvoker(String methodName) { + super(methodName); + } + + public Class<? extends Object> getInvokedClass(TemplateContext context) { Object object = getInvokedObject(context); - Map methods = getMethods(object); - return invokeMethod(context, methods, null, object, state); + return (object != null) ? object.getClass() : RendererUtils.class; } - - private Map getMethods(Object object) { - if(object == null) return null; - Map methods = (Map)renderers.get(object); - if(methods == null) { - methods = new HashMap(); - renderers.put(object, methods); - } - return methods; + + public Object getInvokedObject(TemplateContext context) { + RendererBase renderer = context.getRenderer(); + return null != renderer ? renderer.getUtils() : null; } - void handleInvocationTargetException(TemplateContext context, InvocationTargetException e) { - String logMessage = (utils) - ? Messages.getMessage(Messages.METHOD_CALL_ERROR_1, methodName, context.getComponent().getId()) - : Messages.getMessage(Messages.METHOD_CALL_ERROR_1a, methodName, context.getComponent().getId()); - String excMessage = (utils) - ? Messages.getMessage(Messages.METHOD_CALL_ERROR_2, new Object[]{methodName, context.getComponent().getId(), e.getCause().getMessage()}) - : Messages.getMessage(Messages.METHOD_CALL_ERROR_2a, new Object[]{methodName, context.getComponent().getId(), e.getCause().getMessage()}); + void handleInvocationTargetException(TemplateContext context, + InvocationTargetException e) { + String logMessage = Messages.getMessage(Messages.METHOD_CALL_ERROR_1, + methodName, context.getComponent().getId()); + String excMessage = Messages.getMessage(Messages.METHOD_CALL_ERROR_2, + new Object[] { methodName, context.getComponent().getId(), + e.getCause().getMessage() }); MethodCallElement._log.error(logMessage, e); throw new FacesException(excMessage, e); } - void handleIllegalAccessException(TemplateContext context, IllegalAccessException e) { - String logMessage = (utils) - ? Messages.getMessage(Messages.getMessage(Messages.METHOD_CALL_ERROR_3, methodName, context.getComponent().getId())) - : Messages.getMessage(Messages.getMessage(Messages.METHOD_CALL_ERROR_3a, methodName, context.getComponent().getId())); - String excMessage = (utils) - ? Messages.getMessage(Messages.getMessage(Messages.METHOD_CALL_ERROR_4, new Object[]{methodName, context.getComponent().getId(), e.getCause().getMessage()})) - : Messages.getMessage(Messages.getMessage(Messages.METHOD_CALL_ERROR_4a, new Object[]{methodName, context.getComponent().getId(), e.getCause().getMessage()})); + + void handleIllegalAccessException(TemplateContext context, + IllegalAccessException e) { + String logMessage = Messages.getMessage(Messages.getMessage( + Messages.METHOD_CALL_ERROR_3, methodName, context + .getComponent().getId())); + String excMessage = Messages.getMessage(Messages.getMessage( + Messages.METHOD_CALL_ERROR_4, new Object[] { methodName, + context.getComponent().getId(), + e.getCause().getMessage() })); MethodCallElement._log.error(logMessage, e); throw new FacesException(excMessage, e); } - - void handleMethodNotFoundException(TemplateContext context) throws MethodNotFoundException { - String logMessage = (utils) - ? Messages.getMessage(Messages.getMessage(Messages.METHOD_CALL_ERROR_5, methodName, context.getComponent().getId())) - : Messages.getMessage(Messages.getMessage(Messages.METHOD_CALL_ERROR_5a, methodName, context.getComponent().getId())); - String excMessage = (utils) - ? Messages.getMessage(Messages.getMessage(Messages.METHOD_CALL_ERROR_6, methodName)) - : Messages.getMessage(Messages.getMessage(Messages.METHOD_CALL_ERROR_6a, methodName)); - MethodCallElement._log.error(logMessage); + + void handleMethodNotFoundException(TemplateContext context) + throws MethodNotFoundException { + String logMessage = Messages.getMessage(Messages.getMessage( + Messages.METHOD_CALL_ERROR_5, methodName, context + .getComponent().getId())); + String excMessage = Messages.getMessage(Messages.getMessage( + Messages.METHOD_CALL_ERROR_6, methodName)); + MethodCallElement._log.error(logMessage); throw new FacesException(excMessage); } } class StaticInvoker extends Invoker { String className; - Class cls; - Map methods = new HashMap(); - + Class<?> cls; + Map<String, Method> methods = new HashMap<String, Method>(); + StaticInvoker(String methodName) { - this.methodName = methodName; + super(methodName); int i = methodName.lastIndexOf('.'); className = methodName.substring(0, i); this.methodName = methodName.substring(i + 1); try { - cls = Thread.currentThread().getContextClassLoader().loadClass(className); + cls = Thread.currentThread().getContextClassLoader().loadClass( + className); } catch (ClassNotFoundException e) { - //ignore, throw exception when invoking + // ignore, throw exception when invoking } } - InvokeData invokeMethod(TemplateContext context, MethodCacheState state) { - if(cls == null) throw new FacesException(className, new ClassNotFoundException(className)); - return invokeMethod(context, methods, cls, null, state); + @Override + public Class<?> getInvokedClass(TemplateContext context) { + return cls; } - void handleInvocationTargetException(TemplateContext context, InvocationTargetException e) { - MethodCallElement._log.error(Messages.getMessage(Messages.METHOD_CALL_ERROR_1a, methodName, context.getComponent().getId()), e); - throw new FacesException(Messages.getMessage(Messages.METHOD_CALL_ERROR_2a, new Object[]{methodName, context.getComponent().getId(), e.getCause().getMessage()}), e); + @Override + public Object getInvokedObject(TemplateContext context) { + return null; } - void handleIllegalAccessException(TemplateContext context, IllegalAccessException e) { - MethodCallElement._log.error(Messages.getMessage(Messages.METHOD_CALL_ERROR_3a, methodName, context.getComponent().getId()), e); - throw new FacesException(Messages.getMessage(Messages.METHOD_CALL_ERROR_4a, new Object[]{methodName, context.getComponent().getId(), e.getCause().getMessage()}), e); - } - void handleMethodNotFoundException(TemplateContext context) throws MethodNotFoundException { - MethodCallElement._log.error(Messages.getMessage(Messages.METHOD_CALL_ERROR_5a, methodName, context.getComponent().getId())); - throw new MethodNotFoundException(Messages.getMessage(Messages.METHOD_CALL_ERROR_6a, methodName)); + + void handleInvocationTargetException(TemplateContext context, + InvocationTargetException e) { + MethodCallElement._log.error(Messages.getMessage( + Messages.METHOD_CALL_ERROR_1a, methodName, context + .getComponent().getId()), e); + throw new FacesException(Messages.getMessage( + Messages.METHOD_CALL_ERROR_2a, new Object[] { methodName, + context.getComponent().getId(), + e.getCause().getMessage() }), e); } + + void handleIllegalAccessException(TemplateContext context, + IllegalAccessException e) { + MethodCallElement._log.error(Messages.getMessage( + Messages.METHOD_CALL_ERROR_3a, methodName, context + .getComponent().getId()), e); + throw new FacesException(Messages.getMessage( + Messages.METHOD_CALL_ERROR_4a, new Object[] { methodName, + context.getComponent().getId(), + e.getCause().getMessage() }), e); + } + + void handleMethodNotFoundException(TemplateContext context) + throws MethodNotFoundException { + MethodCallElement._log.error(Messages.getMessage( + Messages.METHOD_CALL_ERROR_5a, methodName, context + .getComponent().getId())); + throw new MethodNotFoundException(Messages.getMessage( + Messages.METHOD_CALL_ERROR_6a, methodName)); + } + } -class MethodCacheState { - private MethodParameterElement[] elements; - private Class[] parameterClasses; - private Object[] parameterValues; - private Class lastCallingClass = null; - public Method method; - public Signature current; - public Signature[] signatures; - - public void init(List parameters) { - if(elements != null) return; - synchronized (this) { - if(elements != null) return; - int size = parameters.size(); - parameterClasses = new Class[size]; - parameterValues = new Object[size]; - signatures = new Signature[3]; - signatures[0] = new Signature2(size); - signatures[1] = new Signature1(size); - signatures[2] = new Signature0(size); - elements = (MethodParameterElement[])parameters.toArray(new MethodParameterElement[0]); - } +abstract class Signature { + + Method method; + + Signature(Method method) { + this.method = method; } - - public Object[] computeParameterValues(TemplateContext context) { - Object[] ps = new Object[elements.length]; - for (int i = 0; i < elements.length; i++) { - ps[i] = elements[i].valueGetter.getValueOrDefault(context); + + boolean isApplicable(TemplateContext context, Class targetClass, + Class<?>[] parameters) { + if (!method.getDeclaringClass().isAssignableFrom(targetClass)) { + return false; } - return ps; - } - - public void update(TemplateContext context, Object[] values, Invoker invoker) { - boolean changed = false; - for (int i = 0; i < elements.length; i++) { - Object parametr = values[i]; - Class c = (parametr == null) ? null : parametr.getClass(); - if(c != parameterClasses[i]) { - parameterClasses[i] = c; - changed = true; - } - parameterValues[i] = parametr; + Class<?>[] methodParameterTypes = this.method.getParameterTypes(); + Class<?>[] parameterTypes = getParameterTypes(context, parameters); + if (methodParameterTypes.length != parameterTypes.length) { + return false; } - if(method != null && !changed && lastCallingClass != invoker.getInvokedClass(context)) { - lastCallingClass = invoker.getInvokedClass(context); - changed = true; - } - if(changed || current == null) { - for (int i = 0; i < signatures.length; i++) { - signatures[i].update(context, parameterValues); + for (int i = 0; i < parameterTypes.length; i++) { + if (null != parameterTypes[i] + && !methodParameterTypes[i] + .isAssignableFrom(parameterTypes[i])) { + return false; } - method = null; - current = null; - } else { - current.update(context, parameterValues); } - } - -} + return true; + } -abstract class Signature { - Object[] arguments; + abstract Class<?>[] getParameterTypes(TemplateContext context, + Class<?>[] parameters); - Signature() {} + abstract Object[] getParameterValues(TemplateContext context, + Object[] parameters); - void update(TemplateContext context, Object[] parameters) {} + Object invoke(TemplateContext context, Object target, Object[] parameters) + throws IllegalArgumentException, IllegalAccessException, + InvocationTargetException { + return this.method.invoke(target, getParameterValues(context, + parameters)); + } + } class Signature0 extends Signature { - Signature0(int size) { - arguments = new Object[size]; + + Signature0(Method method) { + super(method); } - void update(TemplateContext context, Object[] parameters) { - System.arraycopy(parameters, 0, arguments, 0, parameters.length); + @Override + Class<?>[] getParameterTypes(TemplateContext context, Class<?>[] parameters) { + return parameters; } - + + @Override + Object[] getParameterValues(TemplateContext context, Object[] parameters) { + return parameters; + } + } class Signature1 extends Signature { - Signature1(int size) { - arguments = new Object[size + 1]; + Signature1(Method method) { + super(method); } - void update(TemplateContext context, Object[] parameters) { - arguments[0] = context; - System.arraycopy(parameters, 0, arguments, 1, parameters.length); + + @Override + Class<?>[] getParameterTypes(TemplateContext context, Class<?>[] parameters) { + Class<?>[] types = new Class[parameters.length + 1]; + types[0] = TemplateContext.class; + System.arraycopy(parameters, 0, types, 1, parameters.length); + return types; } - + + @Override + Object[] getParameterValues(TemplateContext context, Object[] parameters) { + Object[] values = new Object[parameters.length + 1]; + values[0] = context; + System.arraycopy(parameters, 0, values, 1, parameters.length); + return values; + } + } class Signature2 extends Signature { - Signature2(int size) { - arguments = new Object[size + 2]; + Signature2(Method method) { + super(method); } - void update(TemplateContext context, Object[] parameters) { - arguments[0] = context.getFacesContext(); - arguments[1] = context.getComponent(); - System.arraycopy(parameters, 0, arguments, 2, parameters.length); - } + + @Override + Class<?>[] getParameterTypes(TemplateContext context, Class<?>[] parameters) { + Class<?>[] types = new Class[parameters.length + 2]; + types[0] = FacesContext.class; + types[1] = context.getComponent().getClass(); + System.arraycopy(parameters, 0, types, 2, parameters.length); + return types; + } + + @Override + Object[] getParameterValues(TemplateContext context, Object[] parameters) { + Object[] values = new Object[parameters.length + 2]; + values[0] = context.getFacesContext(); + values[1] = context.getComponent(); + System.arraycopy(parameters, 0, values, 2, parameters.length); + return values; + } }