Example usage for javax.servlet.jsp.el VariableResolver VariableResolver

Introduction

In this page you can find the example usage for javax.servlet.jsp.el VariableResolver VariableResolver.

Prototype

VariableResolver

Source Link

Usage

From source file:com.agilejava.docbkx.maven.ExpressionEvaluatorTest.java

/**
 * DOCUMENT ME!/*from   ww w  . j ava  2s .  c om*/
 *
 * @throws ELException DOCUMENT ME!
 */
public void testEvaluator() throws ELException {
    ExpressionEvaluator evaluator = new ExpressionEvaluatorImpl();
    final Map foo = new HashMap();
    foo.put("bar", "whatever");

    Object result = evaluator.evaluate("${foo.bar}", Object.class, new VariableResolver() {
        public Object resolveVariable(String name) throws ELException {
            System.out.println(name);

            return foo;
        }
    }, new FunctionMapper() {
        public Method resolveFunction(String arg0, String arg1) {
            // TODO Auto-generated method stub
            return null;
        }
    });

    System.out.println(result);
}

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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./*www . j a v  a2 s.  c  o m*/
 */
public VariableResolver getVariableResolver() {
    final PageContext ctx = this;

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

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From source file:de.micromata.genome.gwiki.page.gspt.StandAlonePageContext.java

public StandAlonePageContext(JspWriter jspWriter, ServletContext servletContext, HttpServletRequest request,
        HttpServletResponse response) {//from  w w w.  j  av  a2 s  .  c om
    this.writer = jspWriter;
    this.request = request;
    this.response = response;
    this.servletCtx = servletContext != null ? servletContext : new ServletContextMock();
    initScopes();
    this.resolver = new VariableResolver() {
        public Object resolveVariable(String key) throws ELException {
            return findAttribute(key);
        }
    };
}

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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.//from  w  w w.j  av  a  2s .co  m
 */
@Override
public VariableResolver getVariableResolver() {
    final PageContext ctx = this;

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

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From source file:de.micromata.genome.gwiki.page.gspt.ServletStandalonePageContext.java

@Override
public void initialize(Servlet servlet, ServletRequest request, ServletResponse response, String errorPageURL,
        boolean needsSession, int bufferSize, boolean autoFlush)
        throws IOException, IllegalStateException, IllegalArgumentException {

    this.request = (HttpServletRequest) request;
    this.response = (HttpServletResponse) response;
    this.servlet = (HttpServlet) servlet;
    PrintWriterPatched pout = new PrintWriterPatched(response.getOutputStream());
    GspJspWriter gsptWriter = new GspJspWriter(pout);
    this.writer = gsptWriter;
    this.servletCtx = this.servlet.getServletContext();
    this.session = this.request.getSession(false);

    this.resolver = new VariableResolver() {

        public Object resolveVariable(String key) throws ELException {
            return findAttribute(key);
        }//from w ww  .j  av  a2 s . c  o m

    };
}

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From source file:com.streamsets.datacollector.el.ELEvaluator.java

@Override
@SuppressWarnings("unchecked")
public <T> T evaluate(final ELVars vars, String expression, Class<T> returnType) throws ELEvalException {
    VariableResolver variableResolver = new VariableResolver() {

        @Override/*  w w  w .j ava 2s  . co  m*/
        public Object resolveVariable(String name) throws ELException {
            Object value = constants.get(name);
            if (!vars.hasVariable(name)) {
                if (value == null && !constants.containsKey(name)) {
                    throw new ELException(Utils.format("Constants/Variable '{}' cannot be resolved", name));
                }
            } else {
                value = vars.getVariable(name);
            }
            return value;
        }
    };
    try {
        return (T) EVALUATOR.evaluate(expression, returnType, variableResolver, functionMapper);
    } catch (ELException e) {
        LOG.debug("Error valuating EL '{}': {}", expression, e.toString(), e);
        Throwable t = e;
        if (e.getRootCause() != null) {
            t = e.getRootCause();
        }
        throw new ELEvalException(CommonError.CMN_0104, expression, t.toString(), e);
    }
}

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From source file:com.agilejava.docbkx.maven.AbstractTransformerMojo.java

/**
 * Creates an XML Processing handler for the built-in docbkx <code>&lt;?eval?&gt;</code> PI. This PI resolves maven
 * properties and basic math formula.// w w  w  . ja  v a  2  s.  c  o m
 *
 * @param resolver The initial resolver to use.
 * @param reader   The source XML reader.
 * @return The XML PI filter.
 */
private PreprocessingFilter createPIHandler(EntityResolver resolver, XMLReader reader) {
    PreprocessingFilter filter = new PreprocessingFilter(reader);
    ProcessingInstructionHandler resolvingHandler = new ExpressionHandler(new VariableResolver() {

        public Object resolveVariable(String name) throws ELException {
            if ("date".equals(name)) {
                return DateFormat.getDateInstance(DateFormat.LONG).format(new Date());
            } else if ("project".equals(name)) {
                return getMavenProject();
            } else {
                return getMavenProject().getProperties().get(name);
            }
        }

    }, getLog());
    filter.setHandlers(Arrays.asList(new Object[] { resolvingHandler }));
    filter.setEntityResolver(resolver);
    return filter;
}

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From source file:org.codehaus.groovy.grails.web.pages.ext.jsp.GroovyPagesPageContext.java

@Override
public VariableResolver getVariableResolver() {
    final PageContext ctx = this;
    return new VariableResolver() {
        public Object resolveVariable(String name) throws ELException {
            return ctx.findAttribute(name);
        }// www. j a  v a  2s .co m
    };
}

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From source file:org.netbeans.jmiimpl.omg.uml.foundation.core.TaggedValueImpl.java

private void append(StringBuffer sb, Collection contents) {
    for (Iterator it = contents.iterator(); it.hasNext();) {
        Object o = it.next();/*  w  w w. j  av a2 s .  c o  m*/
        try {
            VariableResolver vr = new VariableResolver() {
                public Object resolveVariable(String string) {
                    Object result = null;
                    if (string.equals("model")) {
                        result = getModelElement().refOutermostPackage();
                    } else if (string.equals("parent")) {
                        result = getModelElement();
                    }
                    return result;
                }
            };
            String result = (String) ev.evaluate(o.toString(), String.class, vr, null);
            if (result.length() > 0) {
                if (sb.length() > 0) {
                    sb.append(" ");
                }
                sb.append(result);
            }
        } catch (ELException e) {
            throw new RuntimeException(e);
        }
    }
}

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