Example usage for javax.el ELException ELException

Introduction

In this page you can find the example usage for javax.el ELException ELException.

Prototype

public ELException(Throwable cause) 

Source Link

Document

Creates an ELException with the given cause

Usage

From source file:org.jbuilt.utils.ValueClosureExpression.java

@Override
public Object getValue(ELContext elContext) throws ELException {
    this.elContext = elContext;
    if (elContext == null) {
        throw new NullPointerException("ELContext -> null");
    }//w  w w  .j  a v a 2 s.c  om
    Object result = null;
    assert null != context;
    try {
        result = PropertyUtils.getProperty(bean, prop);
    } catch (Throwable e) {
        throw new ELException(e);
    }
    return result;
}

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From source file:org.jbuilt.utils.ValueClosureExpression.java

@Override
public void setValue(ELContext elContext, Object value) throws ELException {
    if (elContext == null) {
        throw new NullPointerException("ELContext -> null");
    }//ww w .j  a v a  2s . co  m
    assert null != context;
    try {
        PropertyUtils.setProperty(bean, prop, ((ValueClosureExpression) value).getValue());
    } catch (Throwable e) {
        throw new ELException(e);
    }
}

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From source file:org.jbuilt.utils.ValueClosureExpression.java

@Override
public boolean isReadOnly(ELContext elContext) throws ELException {
    if (elContext == null) {
        throw new NullPointerException("ELContext -> null");
    }/*from   ww  w . j  a v  a 2 s.  c om*/
    boolean result = false;
    assert null != context;
    try {
        result = isReadOnly(bean, prop);
    } catch (Throwable e) {
        throw new ELException(e);
    }
    return result;
}

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From source file:org.jbuilt.utils.ValueClosureExpression.java

@Override
public Class<?> getType(ELContext elContext) throws ELException {
    if (elContext == null) {
        throw new NullPointerException("ELContext -> null");
    }/* w w  w  .  j  a v a2s .com*/
    Class result = null;
    assert null != context;
    try {
        result = getType(this.bean, this.prop);
    } catch (Throwable e) {
        throw new ELException(e);
    }
    return result;
}

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From source file:org.nuxeo.ecm.platform.ui.web.binding.MetaMethodExpression.java

@Override
public Object invoke(ELContext context, Object[] params) {
    Object res = null;/*w  w w . j  av a2  s  .  c  o m*/
    if (originalMethodExpression != null) {
        res = originalMethodExpression.invoke(context, params);
        if (res instanceof String) {
            String expression = (String) res;
            if (ComponentTagUtils.isValueReference(expression)) {
                FacesContext faces = FacesContext.getCurrentInstance();
                Application app = faces.getApplication();
                ExpressionFactory factory = app.getExpressionFactory();
                MethodExpression newMeth = factory.createMethodExpression(context, expression, Object.class,
                        new Class[0]);
                try {
                    res = newMeth.invoke(context, null);
                } catch (Throwable t) {
                    if (t instanceof InvocationTargetException) {
                        // respect the javadoc contract of the overridden
                        // method
                        throw new ELException(t.getCause());
                    } else {
                        throw new ELException(t);
                    }
                }
            } else {
                res = expression;
            }
        }
    }
    return res;
}

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From source file:org.richfaces.taglib.ColumnsHandler.java

/**
 * Return expression for page variables/*from w  w w  .  j av  a 2s  .  co m*/
 * 
 * @param expr
 * @return
 */
private ValueExpression getVarExpression(FaceletContext ctx,
        ValueExpression expr/*, IterationContext itContext*/) {
    IterationContext itContext = getIterationContext();
    Object o = expr.getValue(ctx.getFacesContext().getELContext());
    int k = itContext._index;
    if (o.getClass().isArray() || o instanceof List) {
        return new IndexedValueExpression(expr, k);
    }

    if (o instanceof Collection || o instanceof Iterator || o instanceof Enumeration || o instanceof Map
            || o instanceof String) {

        if (itContext.iteratedExpression == null) {
            itContext.iteratedExpression = new IteratedExpression(expr, ",");
        }
        return new IteratedValueExpression(itContext.iteratedExpression, k);
    }

    throw new ELException("FOREACH_BAD_ITEMS");
}

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From source file:org.richfaces.taglib.ColumnsTag.java

/**
 * Return expression for page variables/*ww  w.  jav  a 2  s  .  c  o m*/
 * 
 * @param expr
 * @return
 */
private ValueExpression getVarExpression(ValueExpression expr) {
    Object o = expr.getValue(pageContext.getELContext());
    if (o.getClass().isArray() || o instanceof List) {
        return new IndexedValueExpression(__value, index);
    }

    if (o instanceof Collection || o instanceof Iterator || o instanceof Enumeration || o instanceof Map
            || o instanceof String) {

        if (iteratedExpression == null) {
            iteratedExpression = new IteratedExpression(__value, getDelims());
        }
        return new IteratedValueExpression(iteratedExpression, index);
    }

    throw new ELException("FOREACH_BAD_ITEMS: [" + o.getClass().getName()
            + "] is not iterable item. Only [List, Array, Collection, Enumeration, Map, String] are supported.");
}

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From source file:org.springframework.web.jsf.el.WebApplicationContextFacesELResolver.java

@Override
@Nullable//from   w ww .ja va  2  s.c  o  m
public Object getValue(ELContext elContext, @Nullable Object base, Object property) throws ELException {
    if (base != null) {
        if (base instanceof WebApplicationContext) {
            WebApplicationContext wac = (WebApplicationContext) base;
            String beanName = property.toString();
            if (logger.isTraceEnabled()) {
                logger.trace("Attempting to resolve property '" + beanName + "' in root WebApplicationContext");
            }
            if (wac.containsBean(beanName)) {
                if (logger.isDebugEnabled()) {
                    logger.debug(
                            "Successfully resolved property '" + beanName + "' in root WebApplicationContext");
                }
                elContext.setPropertyResolved(true);
                try {
                    return wac.getBean(beanName);
                } catch (BeansException ex) {
                    throw new ELException(ex);
                }
            } else {
                // Mimic standard JSF/JSP behavior when base is a Map by returning null.
                return null;
            }
        }
    } else {
        if (WEB_APPLICATION_CONTEXT_VARIABLE_NAME.equals(property)) {
            elContext.setPropertyResolved(true);
            return getWebApplicationContext(elContext);
        }
    }

    return null;
}

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From source file:org.springframework.web.jsf.el.WebApplicationContextFacesELResolver.java

@Override
@Nullable//from  w ww  . j ava 2s.  c  o m
public Class<?> getType(ELContext elContext, @Nullable Object base, Object property) throws ELException {
    if (base != null) {
        if (base instanceof WebApplicationContext) {
            WebApplicationContext wac = (WebApplicationContext) base;
            String beanName = property.toString();
            if (logger.isDebugEnabled()) {
                logger.debug("Attempting to resolve property '" + beanName + "' in root WebApplicationContext");
            }
            if (wac.containsBean(beanName)) {
                if (logger.isDebugEnabled()) {
                    logger.debug(
                            "Successfully resolved property '" + beanName + "' in root WebApplicationContext");
                }
                elContext.setPropertyResolved(true);
                try {
                    return wac.getType(beanName);
                } catch (BeansException ex) {
                    throw new ELException(ex);
                }
            } else {
                // Mimic standard JSF/JSP behavior when base is a Map by returning null.
                return null;
            }
        }
    } else {
        if (WEB_APPLICATION_CONTEXT_VARIABLE_NAME.equals(property)) {
            elContext.setPropertyResolved(true);
            return WebApplicationContext.class;
        }
    }

    return null;
}

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From source file:org.tinygroup.jspengine.runtime.PageContextImpl.java

/**
 * Evaluates an EL expression/*from   w w w .j av  a 2 s . c  om*/
 *
 * @param expression The expression to be evaluated
 * @param expectedType The expected resulting type
 * @param pageContext The page context
 * @param functionMap Maps prefix and name to Method
 * @return The result of the evaluation
 */
public static Object evaluateExpression(final String expression, final Class expectedType,
        final PageContext pageContext, final ProtectedFunctionMapper functionMap) throws ELException {
    Object retValue;
    if (SecurityUtil.isPackageProtectionEnabled()) {
        try {
            retValue = AccessController.doPrivileged(new PrivilegedExceptionAction() {

                public Object run() throws Exception {
                    ELContextImpl elContext = (ELContextImpl) pageContext.getELContext();
                    elContext.setFunctionMapper(functionMap);
                    ExpressionFactory expFactory = getExpressionFactory(pageContext);
                    ValueExpression expr = expFactory.createValueExpression(elContext, expression,
                            expectedType);
                    return expr.getValue(elContext);
                }
            });
        } catch (PrivilegedActionException ex) {
            Exception realEx = ex.getException();
            if (realEx instanceof ELException) {
                throw (ELException) realEx;
            } else {
                throw new ELException(realEx);
            }
        }
    } else {
        ELContextImpl elContext = (ELContextImpl) pageContext.getELContext();
        elContext.setFunctionMapper(functionMap);
        ExpressionFactory expFactory = getExpressionFactory(pageContext);
        ValueExpression expr = expFactory.createValueExpression(elContext, expression, expectedType);
        retValue = expr.getValue(elContext);
    }
    return retValue;
}

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