Example usage for javax.script SimpleBindings SimpleBindings

Introduction

In this page you can find the example usage for javax.script SimpleBindings SimpleBindings.

Prototype

public SimpleBindings()

Source Link

Document

Default constructor uses a HashMap .

Usage

From source file:org.jahia.ajax.gwt.helper.UIConfigHelper.java

/**
 * Get resources/*from w  w w  .  ja v a  2 s .  c  om*/
 *
 * @param key
 * @param locale
 * @param site
 * @param jahiaUser
 * @return
 */
private String getResources(String key, Locale locale, JCRSiteNode site, JahiaUser jahiaUser) {
    if (key == null || key.length() == 0) {
        return key;
    }
    if (logger.isDebugEnabled()) {
        logger.debug("Resources key: " + key);
    }
    String baseName = null;
    String value = null;
    if (key.contains("@")) {
        baseName = StringUtils.substringAfter(key, "@");
        key = StringUtils.substringBefore(key, "@");
    }

    value = Messages.get(baseName, site != null ? site.getTemplatePackage() : null, key, locale, null);
    if (value == null || value.length() == 0) {
        value = Messages.getInternal(key, locale);
    }
    if (logger.isDebugEnabled()) {
        logger.debug("Resources value: " + value);
    }
    if (value.contains("${")) {
        try {
            ScriptEngine scriptEngine = scriptEngineUtils.getEngineByName("velocity");
            ScriptContext scriptContext = new SimpleScriptContext();
            final Bindings bindings = new SimpleBindings();
            bindings.put("currentSite", site);
            bindings.put("currentUser", jahiaUser);
            bindings.put("currentLocale", locale);
            bindings.put("PrincipalViewHelper", PrincipalViewHelper.class);
            scriptContext.setBindings(bindings, ScriptContext.ENGINE_SCOPE);
            scriptContext.setBindings(scriptEngine.getContext().getBindings(ScriptContext.GLOBAL_SCOPE),
                    ScriptContext.GLOBAL_SCOPE);
            scriptContext.setWriter(new StringWriter());
            scriptContext.setErrorWriter(new StringWriter());
            scriptEngine.eval(value, scriptContext);
            //String error = scriptContext.getErrorWriter().toString();
            return scriptContext.getWriter().toString().trim();
        } catch (ScriptException e) {
            logger.error("Error while executing script [" + value + "]", e);
        }
    }
    return value;
}