add callout

// the package name corresponds to the module`s manual code folder
// created above
package org.rahmadnet.learning.AD_Callout;

import javax.servlet.ServletException;

import org.openbravo.utils.FormatUtilities;
import org.openbravo.erpCommon.ad_callouts.SimpleCallout;
import org.openbravo.base.secureApp.VariablesSecureApp;
// classes required to retrieve product category data from the
// database using the DAL
import org.openbravo.dal.service.OBDal;
import org.openbravo.model.common.plm.ProductCategory;

// the name of the class corresponds to the filename that holds it
// hence, modules/modules/org.rahmadnet.learning/src/org/rahmadnet/learning/ad_callouts/ProductConstructSearchKey.java.
// The class must extend SimpleCallout
public class ProductConstructSearchKey extends SimpleCallout {

    private static final long serialVersionUID = 1L;

    @Override
    protected void execute(CalloutInfo info) throws ServletException {

        // parse input parameters here; the names derive from the column
        // names of the teble prepended by inp and stripped of all
        // underscore characters; letters following the underscore character
        // are capitalized; this way the database column named
        // M_PRODUCT_CATEGORY_ID that is shown on a tab will become
        // inpmProductCategoryId html field
        String strProductName = info.getStringParameter("inpname", null);
        String strProductCategoryId = info.getStringParameter("inpmProductCategoryId", null);

        // inject the result into the response
        info.addResult("inpvalue", getConstructedKey(info.vars, strProductName, strProductCategoryId));
    }

    protected String getConstructedKey(VariablesSecureApp vars, String strProductName, String strProductCategoryId) {

        // Retrieve the product category name
        final ProductCategory productCategory = OBDal.getInstance().get(ProductCategory.class, strProductCategoryId);
        String strProductCategoryName = productCategory.getName();

        // construct full key
        String generatedSearchKey = FormatUtilities.replaceJS(strProductName.replaceAll(" ", " "))
                    + "_" + strProductCategoryName.replaceAll(" ", " ");

        // return generated key
        return generatedSearchKey;
    }

}