Example usage for javax.servlet.jsp PageContext findAttribute

Introduction

In this page you can find the example usage for javax.servlet.jsp PageContext findAttribute.

Prototype


abstract public Object findAttribute(String name);

Source Link

Document

Searches for the named attribute in page, request, session (if valid), and application scope(s) in order and returns the value associated or null.

Usage

From source file:com.tonbeller.wcf.expr.ExprUtils.java

public static ExprContext getExprContextAdapter(final PageContext pageContext) {
    return new ExprContext() {
        public Object findBean(String name) {
            return pageContext.findAttribute(name);
        }/*  w w  w .j  a v a 2 s  . c om*/

        public void setBean(String name, Object bean) {
            if (bean == null)
                pageContext.removeAttribute(name);
            else
                pageContext.setAttribute(name, bean, PageContext.SESSION_SCOPE);
        }
    };
}

From source file:jp.terasoluna.fw.web.taglib.TagUtil.java

/**
 * wBeanwXR?[v?B/*from   w  w w. j a v a  2 s .  c  om*/
 * ?scopeNameNull??PageScope?B
 * 
 * @param pageContext y?[WReLXg
 * @param name Bean
 * @param scopeName BeanXR?[v
 * @return Bean
 * @throws JspException vXR?[v???
 */
public static Object lookup(PageContext pageContext, String name, String scopeName) throws JspException {

    if (scopeName == null) {
        return pageContext.findAttribute(name);
    }

    return pageContext.getAttribute(name, getScope(scopeName));

}

From source file:com.googlecode.jtiger.modules.ecside.util.ExtremeUtils.java

/**
 * Get the bean out of the proper scope.
 *///w w  w .jav a  2s .c  o m
public static Object retrieveFromScope(PageContext pageContext, String name, String scope) {
    if (StringUtils.isBlank(scope)) {
        return pageContext.findAttribute(name);
    }

    int scopeType = PageContext.REQUEST_SCOPE;

    if (scope.equalsIgnoreCase("page")) {
        scopeType = PageContext.PAGE_SCOPE;
    } else if (scope.equalsIgnoreCase("application")) {
        scopeType = PageContext.APPLICATION_SCOPE;
    } else if (scope.equalsIgnoreCase("session")) {
        scopeType = PageContext.SESSION_SCOPE;
    }

    return pageContext.getAttribute(name, scopeType);
}

From source file:de.iteratec.iteraplan.presentation.tags.TagUtils.java

/**
 * Locate and return the specified bean, from an optionally specified scope, in the specified page
 * context. If no such bean is found, return <code>null</code> instead.
 * //from w ww  . j  a  va  2 s . co  m
 * @param pageContext
 *          Page context to be searched
 * @param name
 *          Name of the bean to be retrieved
 * @param scopeName
 *          Scope to be searched (page, request, session, application) or <code>null</code> to use
 *          <code>findAttribute()</code> instead
 * @return JavaBean in the specified page context
 * @throws JspException
 *           if an invalid scope name is requested
 */
public static Object lookup(PageContext pageContext, String name, String scopeName) throws JspException {

    if (scopeName == null) {
        return pageContext.findAttribute(name);
    }

    return pageContext.getAttribute(name, getScope(scopeName));
}

From source file:net.sourceforge.vulcan.web.JstlFunctions.java

public static List<String> getAvailableDashboardColumns(PageContext pageContext) {
    final List<String> availableColumns = getAllDashboardColumns(Keys.DASHBOARD_COLUMNS);

    availableColumns.addAll(getAvailableMetrics());

    final PreferencesDto prefs = (PreferencesDto) pageContext.findAttribute(Keys.PREFERENCES);

    if (prefs != null && prefs.getDashboardColumns() != null) {
        // Start with the chosen columns in the chosen order.
        final List<String> userSorted = new ArrayList<String>(Arrays.asList(prefs.getDashboardColumns()));

        // Remove any columns that are no longer valid.
        userSorted.retainAll(availableColumns);

        // Remove duplicates from set of unselected columns.
        availableColumns.removeAll(userSorted);

        // Add the unselected columns to the end of the list.
        userSorted.addAll(availableColumns);

        return userSorted;
    }//  w  w w.  j a v  a2  s. com

    return availableColumns;
}

From source file:org.sakaiproject.iclicker.tool.ToolController.java

public static void addMessage(PageContext context, String key, String messageKey, Object... args) {
    if (context == null || key == null) {
        throw new IllegalArgumentException(
                "context (" + context + ") and key (" + key + ") must both not be null");
    }/*w w w  .j  a v  a 2 s  . co m*/
    if (messageKey != null && !"".equals(messageKey)) {
        // get the message from messageSource if possible
        MessageSource ms = (MessageSource) context.findAttribute("messageSource");
        Locale locale = context.getRequest().getLocale();
        String message;
        try {
            message = ms.getMessage(messageKey, args, locale);
        } catch (NoSuchMessageException e) {
            message = "{{INVALID KEY:" + messageKey + "}}";
        }
        addMessage(context, key, message);
    }
}

From source file:freemarker.ext.jsp._FreeMarkerPageContext2.java

/**
 * Returns a variable resolver that will resolve variables by searching through
 * the page scope, request scope, session scope and application scope for an
 * attribute with a matching name.//  ww  w  .ja  va  2  s . com
 */
public VariableResolver getVariableResolver() {
    final PageContext ctx = this;

    return new VariableResolver() {
        public Object resolveVariable(String name) throws ELException {
            return ctx.findAttribute(name);
        }
    };
}

From source file:freemarker.ext.jsp._FreeMarkerPageContext21.java

/**
 * Returns a variable resolver that will resolve variables by searching through
 * the page scope, request scope, session scope and application scope for an
 * attribute with a matching name.// ww w .jav  a 2 s. c o  m
 */
@Override
public VariableResolver getVariableResolver() {
    final PageContext ctx = this;

    return new VariableResolver() {
        public Object resolveVariable(String name) throws ELException {
            return ctx.findAttribute(name);
        }
    };
}

From source file:com.feilong.taglib.util.TagUtils.java

/**
 * Locate and return the specified bean, from an optionally specified scope, in the specified page context. If no such bean is found,
 * return <code>null</code> instead. If an exception is thrown, it will have already been saved via a call to
 * <code>saveException()</code>.
 * //  ww  w.j  a  v a  2 s.c o  m
 * @param pageContext
 *            Page context to be searched
 * @param name
 *            Name of the bean to be retrieved
 * @param scopeName
 *            Scope to be searched (page, request, session, application) or <code>null</code> to use <code>findAttribute()</code>
 *            instead
 * @return JavaBean in the specified page context
 * @throws JspException
 *             if an invalid scope name is requested
 */
public Object lookup(PageContext pageContext, String name, String scopeName) throws JspException {
    if (scopeName == null) {
        return pageContext.findAttribute(name);
    }
    try {
        return pageContext.getAttribute(name, instance.getScope(scopeName));
    } catch (JspException e) {
        throw e;
    }
}

From source file:com.glaf.core.tag.TagUtils.java

/**
 * Locate and return the specified bean, from an optionally specified scope,
 * in the specified page context. If no such bean is found, return
 * <code>null</code> instead. If an exception is thrown, it will have
 * already been saved via a call to <code>saveException()</code>.
 * /*from   www.  j ava 2  s  .  c o m*/
 * @param pageContext
 *            Page context to be searched
 * @param name
 *            Name of the bean to be retrieved
 * @param scopeName
 *            Scope to be searched (page, request, session, application) or
 *            <code>null</code> to use <code>findAttribute()</code> instead
 * @return JavaBean in the specified page context
 * @throws JspException
 *             if an invalid scope name is requested
 */
public Object lookup(PageContext pageContext, String name, String scopeName) throws JspException {
    if (scopeName == null) {
        return pageContext.findAttribute(name);
    }

    try {
        return pageContext.getAttribute(name, instance.getScope(scopeName));
    } catch (JspException e) {
        saveException(pageContext, e);
        throw e;
    }
}