Example usage for javax.el ValueExpression getType

Introduction

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

Prototype

public abstract Class<?> getType(ELContext context);

Source Link

Usage

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

@Override
public Class<?> getType(ELContext context) {
    ValueExpression ve = resolveExpression(context);
    if (ve != null) {
        return ve.getType(context);
    }//from   www.j a  v a  2  s .co m
    return Object.class;
}

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From source file:org.primefaces.extensions.converter.JsonConverter.java

public Object getAsObject(FacesContext context, UIComponent component, String value) {
    java.lang.reflect.Type objType;

    if (getType() == null) {
        ValueExpression expression = component.getValueExpression("value");
        objType = expression.getType(context.getELContext());
    } else {/*from  w  w  w  .  j  a v a2 s .  co  m*/
        objType = getObjectType(getType().trim(), false);
    }

    return GsonConverter.getGson().fromJson(value, objType);
}

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From source file:org.rhq.enterprise.gui.common.upload.UploadRenderer.java

public void decode(FacesContext context, UIComponent component) {
    ExternalContext external = context.getExternalContext();
    HttpServletRequest request = (HttpServletRequest) external.getRequest();
    String clientId = component.getClientId(context);
    FileItem item = (FileItem) request.getAttribute(clientId);

    Object newValue;//from w ww  .  jav a 2  s . c o  m
    ValueExpression valueExpression = component.getValueExpression("value");
    if (valueExpression != null) {
        Class valueType = valueExpression.getType(context.getELContext());
        if (valueType == byte[].class) {
            newValue = item.get();
        } else if (valueType == InputStream.class) {
            try {
                newValue = item.getInputStream();
            } catch (IOException ex) {
                throw new FacesException(ex);
            }
        } else {
            String encoding = request.getCharacterEncoding();
            if (encoding != null) {
                try {
                    newValue = item.getString(encoding);
                } catch (UnsupportedEncodingException ex) {
                    newValue = item.getString();
                }
            } else {
                newValue = item.getString();
            }
        }

        ((EditableValueHolder) component).setSubmittedValue(newValue);
        ((EditableValueHolder) component).setValid(true);
    }

    Object target = component.getAttributes().get("target");

    if (target != null) {
        File file;
        if (target instanceof File) {
            file = (File) target;
        } else {
            ServletContext servletContext = (ServletContext) external.getContext();
            String realPath = servletContext.getRealPath(target.toString());
            file = new File(realPath);
        }

        try {
            item.write(file);
        } catch (Exception ex) {
            throw new FacesException(ex);
        }
    }
}

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From source file:org.richfaces.component.UICalendar.java

public void updateCurrentDate(FacesContext context, Object currentDate) {

    if (context == null) {
        throw new NullPointerException();
    }//from  w w w. ja v a2  s  .  c  o  m
    // RF-1073
    try {
        ValueExpression ve = getValueExpression("currentDate");
        if (ve != null) {
            ELContext elContext = context.getELContext();
            if (ve.getType(elContext).equals(String.class)) {
                DateTimeConverter convert = new DateTimeConverter();
                convert.setLocale(getAsLocale(getLocale()));
                convert.setPattern(getDatePattern());
                ve.setValue(context.getELContext(), convert.getAsString(context, this, currentDate));
                return;
            } else if (ve.getType(elContext).equals(Calendar.class)) {
                Calendar c = Calendar.getInstance();
                c.setTime((Date) currentDate);
                ve.setValue(elContext, c);
                return;
            } else {
                ve.setValue(elContext, currentDate);
                return;
            }
        } else {
            setCurrentDate(currentDate);
        }

    } catch (Exception e) {
        setValid(false);
        // XXX nick - kaa - add log.debug(...)
        if (log.isDebugEnabled()) {
            log.debug(" updateCurrentDate method throws exception: " + e.toString(), e);
        }
        e.printStackTrace();
        String messageString = e.toString();
        FacesMessage message = new FacesMessage(messageString);
        message.setSeverity(FacesMessage.SEVERITY_ERROR);
        context.addMessage(getClientId(context), message);
    }
}

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From source file:org.richfaces.renderkit.CalendarRendererBase.java

@Override
public Object getConvertedValue(FacesContext context, UIComponent component, Object submittedValue)
        throws ConverterException {

    if ((context == null) || (component == null)) {
        throw new NullPointerException();
    }/*www .  j  a  v  a  2  s .  com*/

    // skip conversion of already converted date
    if (submittedValue instanceof Date) {
        return (Date) submittedValue;
    }

    // Store submitted value in the local variable as a string
    String newValue = (String) submittedValue;
    // if we have no local value, try to get the valueExpression.
    ValueExpression valueExpression = component.getValueExpression("value");
    Converter converter = null;

    UICalendar calendar = (UICalendar) component;
    converter = calendar.getConverter();

    if ((converter == null) && (valueExpression != null)) {
        Class<? extends Object> converterType = valueExpression.getType(context.getELContext());
        if ((converterType != null) && (converterType != Object.class)) {
            // if getType returns a type for which we support a default
            // conversion, acquire an appropriate converter instance.
            converter = getConverterForClass(converterType, context);
        }
    }

    // in case the converter hasn't been set, try to use default DateTimeConverter
    if (converter == null) {
        converter = createDefaultConverter();
    }
    setupDefaultConverter(converter, calendar);

    return converter.getAsObject(context, component, newValue);
}

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From source file:yoyo.framework.screen.iface.jsf.UploadRenderer.java

/** {@inheritDoc} */
@Override/*from   w ww .ja  v  a  2  s  .  c om*/
public void decode(final FacesContext context, final UIComponent component) {
    final ExternalContext external = context.getExternalContext();
    final HttpServletRequest request = (HttpServletRequest) external.getRequest();
    final String clientId = component.getClientId(context);
    final FileItem item = (FileItem) request.getAttribute(clientId);
    if ((item == null) || StringUtils.isEmpty(item.getName())) {
        return;
    }
    LOG.fine("item:" + item);
    final ValueExpression valueExpr = component.getValueExpression("value");
    if (valueExpr != null) {
        ((EditableValueHolder) component).setSubmittedValue(
                findSubmittedValue(request, item, valueExpr.getType(context.getELContext())));
        ((EditableValueHolder) component).setValid(true);
    }
    final Object target = component.getAttributes().get("target");
    LOG.fine("target=" + target);
    if (target != null) {
        File file;
        if (target instanceof File) {
            file = (File) target;
        } else {
            final ServletContext servletContext = (ServletContext) external.getContext();
            final String itemName = item.getName();
            final String dirPath = "WEB-INF/" + target;
            LOG.fine("dirPath=" + dirPath);
            new File(servletContext.getRealPath(dirPath)).mkdirs();
            final String filePath = dirPath + "/" + itemName;
            final String realPath = servletContext.getRealPath(filePath);
            LOG.fine("realPath=" + realPath);
            file = new File(realPath);
        }
        // UGH ?????????commons-upload?
        try {
            LOG.fine("item.write");
            item.write(file);
        } catch (final Exception ex) {
            throw new FacesException(ex);
        }
    }
}

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