Application: gvSIG desktop

package org.gvsig.expressionevaluator.impl.function.programming;

import org.apache.commons.lang3.Range;

import org.gvsig.expressionevaluator.Function;

import org.gvsig.expressionevaluator.Interpreter;

import org.gvsig.expressionevaluator.spi.AbstractFunction;

import org.gvsig.tools.ToolsLocator;

public class UserFunction extends AbstractFunction {

    public static final String NAME = "USER";

    public UserFunction() {

        super(Function.GROUP_PROGRAMMING, 

            NAME, 

            Range.is(0),

            "Get the current user logged.",

            NAME+"()",

            null,

            "SimpleIdentity",

            false

        );

        this.addAlias("CURRENTUSER");

    }

    @Override

    public boolean allowConstantFolding() {

        return false;

    }

    @Override

    public Object call(Interpreter interpreter, Object[] args) throws Exception {

        return ToolsLocator.getIdentityManager().getCurrentIdentity();

    }

}