Subversion Repositories SmartDukaan

package in.shop2020.ui.util;

import in.shop2020.metamodel.core.Bullet;

import in.shop2020.metamodel.core.Entity;

import in.shop2020.metamodel.core.Feature;

import in.shop2020.metamodel.core.FreeformContent;

import in.shop2020.metamodel.core.Media;

import in.shop2020.metamodel.core.PrimitiveDataObject;

import in.shop2020.metamodel.core.Slide;

import in.shop2020.metamodel.definitions.Catalog;

import in.shop2020.metamodel.definitions.Category;

import in.shop2020.metamodel.util.CreationUtils;

import in.shop2020.metamodel.util.ExpandedBullet;

import in.shop2020.metamodel.util.ExpandedEntity;

import in.shop2020.metamodel.util.ExpandedFeature;

import in.shop2020.metamodel.util.ExpandedSlide;

import in.shop2020.util.EntityUtils;

import in.shop2020.util.Utils;

import java.io.BufferedWriter;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.OutputStreamWriter;

import java.net.URLEncoder;

import java.nio.channels.FileChannel;

import java.text.DecimalFormat;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.Properties;

import org.apache.commons.logging.Log;

import org.apache.commons.logging.LogFactory;

import org.apache.velocity.Template;

import org.apache.velocity.VelocityContext;

import org.apache.velocity.app.Velocity;

import org.apache.velocity.exception.ParseErrorException;

import org.apache.velocity.exception.ResourceNotFoundException;

import org.json.JSONObject;

/**

 * Utility class to merge Java data objects with VTL scripts. Also generates

 * images and other required stuff for rendering content

 *

 * @author rajveer

 *

 */

public class NewVUI {

    private static final String ICON_JPG = "icon.jpg";

    private static final String THUMBNAIL_JPG = "thumbnail.jpg";

    private static final String DEFAULT_JPG = "default.jpg";

    private static final String SPACE = " ";

    private static final String DOT = ".";

    private static final String ESCAPED_DOT = "\\.";

    private static final String HYPHON = "-";

    private static Log log = LogFactory.getLog(NewVUI.class);

    private String     contentVersion;

    public NewVUI(Long contentVersion) throws Exception {

        this.contentVersion = contentVersion.toString();

    }

    private void copyDocuments(ExpandedEntity expEntity, String documentPrefix) throws IOException {

        long catalogId = expEntity.getID();

        String destinationDirectory = Utils.EXPORT_PATH + "documents"

                + File.separator + catalogId;

        /*

         * Create the directory for this entity if it didn't exist.

         */

        File destFile = new File(destinationDirectory);

        if (!destFile.exists()) {

            destFile.mkdir();

        }

        ExpandedSlide expSlide = expEntity.getExpandedSlide(Utils.AFTER_SALES_SLIDE_DEFINITION_ID);

        if (expSlide == null || expSlide.getFreeformContent() == null) {

            return;

        }

        List<String> documentLabels = expSlide.getFreeformContent().getDocumentLabels();

        if ((documentLabels == null || documentLabels.isEmpty())) {

            return;

        } else {

            Map<String, Media> medias = expSlide.getFreeformContent().getMedias();

            for (String documentLabel : documentLabels) {

                Media document = medias.get(documentLabel);

                copyFile(new File(document.getLocation()), new File(destFile, computeNewFileName(documentPrefix, document.getFileName(),

                        String.valueOf(document.getCreationTime().getTime()))), false);

            }

        }

    }

    /**

     * It Actually copies the images from some given directory to export

     * directory. It also attaches the imagePrefix at the end of image name.

     *

     * @param catalogId

     * @param imagePrefix

     * @throws IOException

     */

    private void generateImages(ExpandedEntity entity, final String imagePrefix)

            throws IOException {

        long catalogId = entity.getID();

        String globalImageDirPath = Utils.CONTENT_DB_PATH + "media"

                + File.separator;

        String globalDefaultImagePath = globalImageDirPath + DEFAULT_JPG;

        String imageDirPath = globalImageDirPath + catalogId + File.separator;

        String defaultImagePath = imageDirPath + DEFAULT_JPG;

        /*

         * Create the directory for this entity if it didn't exist.

         */

        File f = new File(globalImageDirPath + catalogId);

        if (!f.exists()) {

            f.mkdir();

        }

        /*

         * If the default image is not present for this entity, copy the global

         * default image. TODO: This part will be moved to the Jython Script

         */

        File globalDefaultJPGFile = new File(globalDefaultImagePath);

        copyFile(globalDefaultJPGFile, new File(defaultImagePath), false);

        File staticMediaDirectory = new File(Utils.EXPORT_MEDIA_STATIC_PATH + catalogId);

        if (!staticMediaDirectory.exists()) {

            staticMediaDirectory.mkdir();

        }

        File websiteMediaDirectory = new File(Utils.EXPORT_MEDIA_WEBSITE_PATH + catalogId);

        if (!websiteMediaDirectory.exists()) {

            websiteMediaDirectory.mkdir();

        }

        /*

         * Creating default, thumbnails and icon files in case no 'default' labelled media is uploaded

         * in CMS for an entity in summary slide. It copes content form the global default location.

         * For incremental geenration, we check for global image file's last modified timestamp.

         */

        long defaultImageCreationTime = EntityUtils.getCreationTimeFromSummarySlide(entity, "default");

        File newVersionedDefaultJPGFile = new File(staticMediaDirectory,

                computeNewFileName(imagePrefix, DEFAULT_JPG, String.valueOf(defaultImageCreationTime)));

        // This flag basically determines whether 'default' labelled image has changed or not

        // If defaultImageCreationTime is zero, i.e. either the entity is old so its image/media 

        // object does not have creationTime field set; or, the default image itself does'not exist!

        // In either case, we shuld assume that default image does not exist

        boolean existsNewVersionedDefaultJPGFile = newVersionedDefaultJPGFile.exists();

        // If default images are not generated before, or default labelled images are absent, or the global

        // image itself got changed, we need to copy these images.

        if (defaultImageCreationTime == 0 && (!existsNewVersionedDefaultJPGFile ||

                globalDefaultJPGFile.lastModified() > Long.parseLong(contentVersion)))

        {

            copyFile(globalDefaultJPGFile,

                     new File(websiteMediaDirectory, DEFAULT_JPG), false);

            copyFile(globalDefaultJPGFile,

                     newVersionedDefaultJPGFile, false);

            copyFile(new File(imageDirPath + THUMBNAIL_JPG),

                     new File(websiteMediaDirectory, THUMBNAIL_JPG), true);

            copyFile(new File(imageDirPath + ICON_JPG),

                     new File(websiteMediaDirectory, ICON_JPG), true);

            copyFile(new File(imageDirPath + THUMBNAIL_JPG),

                     new File(staticMediaDirectory, computeNewFileName(imagePrefix, THUMBNAIL_JPG,

                             String.valueOf(defaultImageCreationTime))), false);

            copyFile(new File(imageDirPath + ICON_JPG),

                     new File(staticMediaDirectory, computeNewFileName(imagePrefix, ICON_JPG,

                             String.valueOf(defaultImageCreationTime))), false);

            // FIXME This should be removed once we are ready with changes in ProductListGenerator.

            copyFile(new File(imageDirPath + ICON_JPG),

                     new File(staticMediaDirectory, ICON_JPG), true);

        }

        /*

         * Copying the generated content from db/media to export/media. This

         * will also insert a creation timestamp tag in the file names.

         */

        for (ExpandedSlide expandedSlide : entity.getExpandedSlides()) {

            FreeformContent freeFormContent = expandedSlide

                    .getFreeformContent();

            if (freeFormContent != null) {

                for (String label : freeFormContent.getImageLabels()) {

                    final Media image = freeFormContent.getMedias().get(label);

                    if (isWebsiteImage(image)) {

                        // In case, default.jpg is changed, icon.jpg and

                        // thumbnail.jpg also need to be updated

                        if (isDefaultImage(image)) {

                                copyFile(new File(image.getLocation()),

                                         new File(websiteMediaDirectory, image.getFileName()),

                                        !existsNewVersionedDefaultJPGFile);

                                /*

                                 * Copy the thumbnail and the icon files. This is

                                 * required so that we can display the thumbnail on

                                 * the cart page and icon on the facebook.

                                 */

                                copyFile(new File(imageDirPath + THUMBNAIL_JPG),

                                         new File(websiteMediaDirectory, THUMBNAIL_JPG),

                                        !existsNewVersionedDefaultJPGFile);

                                copyFile(new File(imageDirPath + ICON_JPG),

                                         new File(websiteMediaDirectory, ICON_JPG),

                                        !existsNewVersionedDefaultJPGFile);

                        }

                        else {

                            copyFile(new File(image.getLocation()),

                                     new File(websiteMediaDirectory, image.getFileName()),

                                     false);

                        }

                    }

                    // Copying all files with timestamps in static directory

                    copyFile(new File(image.getLocation()),

                             new File(staticMediaDirectory, computeNewFileName(imagePrefix, image.getFileName(),

                                    String.valueOf(image.getCreationTime().getTime()))), false);

                    // If default image is changed icon and thumbnail images are

                    // re-copied in static directory

                    if (isDefaultImage(image)) {

                        copyFile(new File(imageDirPath + THUMBNAIL_JPG),

                                 new File(staticMediaDirectory,

                                         computeNewFileName(imagePrefix, THUMBNAIL_JPG, String.valueOf(image.getCreationTime().getTime()))), false);

                        copyFile(new File(imageDirPath + ICON_JPG),

                                 new File(staticMediaDirectory,

                                     computeNewFileName(imagePrefix, ICON_JPG, String.valueOf(image.getCreationTime().getTime()))), false);

                        // FIXME This should be removed once we are ready with

                        // changes in ProductListGenerator.

                        copyFile(new File(imageDirPath + ICON_JPG), new File(

                                staticMediaDirectory, ICON_JPG), !existsNewVersionedDefaultJPGFile);

                    }

                }

            }

        }

    }

    /**

     * This method computes new name of a given file. It adds necessary prefix 

     * and suffix to core file name separated by hyphons keeping extension intact.

     * e.g. computeNewFileName("pre", "file.txt", "post") would return "pre-file-post.txt"

     *

     * @param fileNamePrefix    the string to be prefixed

     * @param fileName          the complete name of file

     * @param fileNameSuffix    the string to be suffixed

     * @return the final file name

     */

    private String computeNewFileName(String fileNamePrefix, String fileName, String fileNameSuffix) {

        String name = fileName.split(ESCAPED_DOT)[0];

        String fileExt = fileName.split(ESCAPED_DOT)[1];

        return fileNamePrefix + HYPHON + name + HYPHON + fileNameSuffix + DOT + fileExt;

    }

    /**

     * Images to be copied under export/media/website are identified here

     *

     * @param image

     * @return true in case image needs to be copied in website directory

     */

    private boolean isWebsiteImage(Media image) {

        if (isDefaultImage(image)) {

            return true;

        }

        return false;

    }

    /**

     * Retuens true in case a given image is the default one. False, otherwise.

     */

    private boolean isDefaultImage(Media image) {

        String label = image.getLabel();

        return label != null && "default".equals(label.trim());

    }

    /**

     * Copies the contents of the source file into the destination file. Creates

     * the destination file if it doesn't exist already.

     */

    private void copyFile(File sourceFile, File destFile, boolean overwrite) throws IOException {       

        if (!destFile.exists()) {

            log.info("Creating file: " + destFile.getAbsolutePath());

            destFile.createNewFile();

        }

        else {

            // Return in case file should not be overwritten

            if (!overwrite) {

                log.info("Not overwriting file: " + destFile.getAbsolutePath());

                return;

            }

            log.info("Overwriting file: " + destFile.getAbsolutePath());

        }

        FileChannel source = null;

        FileChannel destination = null;

        try {

            source = new FileInputStream(sourceFile).getChannel();

            destination = new FileOutputStream(destFile).getChannel();

            destination.transferFrom(source, 0, source.size());

        } finally {

            if (source != null) {

                source.close();

            }

            if (destination != null) {

                destination.close();

            }

        }

    }

    /**

     * Get the commonly used product properties and store them in a file.

     *

     * @param expEntity

     * @param exportPath

     */

    private void getProductPropertiesSnippet(ExpandedEntity expEntity,

            String exportPath) {

        long catalogId = expEntity.getID();

        try {

            expEntity = CreationUtils.getExpandedEntity(catalogId);

        } catch (Exception e) {

            log.error("Error fetching entity for id: " + catalogId, e);

        }

        String metaDescription = "";

        String metaKeywords = "";

        String entityUrl = EntityUtils.getEntityURL(expEntity);

        String title = "";

        List<Feature> features = expEntity.getSlide(130054).getFeatures();

        for (Feature feature : features) {

            if (feature.getFeatureDefinitionID() == 120132) {

                PrimitiveDataObject dataObject = (PrimitiveDataObject) feature

                        .getBullets().get(0).getDataObject();

                title = dataObject.getValue();

            }

            if (feature.getFeatureDefinitionID() == 120133) {

                PrimitiveDataObject dataObject = (PrimitiveDataObject) feature

                        .getBullets().get(0).getDataObject();

                metaDescription = dataObject.getValue();

            }

            if (feature.getFeatureDefinitionID() == 120134) {

                PrimitiveDataObject dataObject = (PrimitiveDataObject) feature

                        .getBullets().get(0).getDataObject();

                metaKeywords = dataObject.getValue();

            }

        }

        try {

            JSONObject props = new JSONObject();

            Category category = expEntity.getCategory();

            String categoryName = category.getLabel();

            props.put("metaDescription", metaDescription);

            props.put("metaKeywords", metaKeywords);

            props.put("entityUrl", entityUrl);

            props.put("title", title);

            props.put("name", EntityUtils.getProductName(expEntity));

            boolean displayAccessories;

            if(expEntity.getCategory().getParentCategory().getID() != Utils.MOBILE_ACCESSORIES_CATEGORY && expEntity.getCategory().getID() != Utils.LAPTOPS_CATEGORY){

                props.put("displayAccessories", "TRUE");

                displayAccessories = true;

            }else{

                props.put("displayAccessories", "FALSE" );

                displayAccessories = false;

            }  

            props.put("categoryName", categoryName);

            props.put("categoryUrl", categoryName.replaceAll(SPACE, "-").toLowerCase() + "/" + category.getID());

            String categoryUrl = categoryName.replaceAll(SPACE, "-").toLowerCase() + "/" + category.getID();

            String brandUrl = expEntity.getBrand().toLowerCase().replace(' ', '-');

            String breadCrumb = "<a href='/'>Home</a>&nbsp;&gt;&nbsp;" +

                                "<a href='/" +  categoryUrl + "'>" + categoryName + "</a>&nbsp;&gt;&nbsp;";

            if(displayAccessories){

                breadCrumb = breadCrumb +  "<a href='/" + brandUrl + "'>" + expEntity.getBrand() + "</a>";

            }else{

                breadCrumb =  breadCrumb + "<a>" + expEntity.getBrand() + "</a>";  

            }

            breadCrumb = breadCrumb +  "&nbsp;<a>" + expEntity.getModelName().trim() + SPACE + expEntity.getModelNumber().trim() + "</a>";

            props.put("breadCrumb", breadCrumb);

            String exportFileName = exportPath + catalogId + File.separator

                    + "ProductPropertiesSnippet.vm";

            File exportFile = new File(exportFileName);

            if (!exportFile.exists()) {

                exportFile.createNewFile();

            }

            BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(

                    new FileOutputStream(exportFile)));

            writer.write(props.toString());

            writer.flush();

            writer.close();

        } catch (Exception e) {

            log.error("Error generating JSON", e);

        }

    }

    /**

     * Get slide names and write them in a file. This file will be used in

     * comparison.

     *

     * @param expEntity

     * @param exportPath

     * @throws Exception

     */

    private void getSlidenamesSnippet(ExpandedEntity expEntity,

            String exportPath) throws Exception {

        long catalogId = expEntity.getID();

        StringBuilder slideNames = new StringBuilder();

        // TODO Investigate why brand + model number is used ?

        slideNames.append(expEntity.getBrand() + SPACE

                + expEntity.getModelNumber() + SPACE + expEntity.getModelName()

                + "\n");

        Map<Long, Double> slideScores = CreationUtils

                .getSlideComparisonScores(catalogId);

        for (ExpandedSlide expSlide : expEntity.getExpandedSlides()) {

            if (expSlide.getSlideDefinitionID() == Utils.SUMMARY_SLIDE_DEFINITION_ID

                    || expSlide.getSlideDefinitionID() == Utils.AFTER_SALES_SLIDE_DEFINITION_ID) {

                continue;

            }

            slideNames.append(expSlide.getSlideDefinition().getLabel() + "!!!");

            String bucketName = "None";

            if (Catalog

                    .getInstance()

                    .getDefinitionsContainer()

                    .getComparisonBucketName(expEntity.getCategoryID(),

                            expSlide.getSlideDefinitionID()) != null) {

                bucketName = Catalog

                        .getInstance()

                        .getDefinitionsContainer()

                        .getComparisonBucketName(expEntity.getCategoryID(),

                                expSlide.getSlideDefinitionID());

            }

            slideNames.append(bucketName + "!!!");

            double score = 0;

            if (slideScores.get(expSlide.getSlideDefinitionID()) != null) {

                score = slideScores.get(expSlide.getSlideDefinitionID());

            }

            DecimalFormat oneDForm = new DecimalFormat("#.#");

            score = Double.valueOf(oneDForm.format(score));

            slideNames.append(score + "\n");

        }

        String exportFileName = exportPath + catalogId + File.separator

                + "SlideNamesSnippet.vm";

        File exportFile = new File(exportFileName);

        if (!exportFile.exists()) {

            exportFile.createNewFile();

        }

        BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(

                new FileOutputStream(exportFile)));

        writer.write(slideNames.toString());

        writer.flush();

        writer.close();

    }

    /**

     * Get related accessories

     *

     * @param expEntity

     * @param exportPath

     * @throws Exception

     */

    private void getRelatedAccessories(ExpandedEntity expEntity,

            String exportPath) throws Exception {

        long catalogId = expEntity.getID();

        Map<Long, List<Long>> relatedAccessories = CreationUtils

                .getRelatedAccessories().get(catalogId);

        List<Long> priorityList = new ArrayList<Long>();

        int individualLimit = 2;

        int totalLimit = 10;

        priorityList.add(Utils.CARRYING_CASE);

        priorityList.add(Utils.SCREEN_GUARD);

        priorityList.add(Utils.BATTERY);

        priorityList.add(Utils.MEMORY_CARD);

        priorityList.add(Utils.BLUETOOTH_HEADSET);

        priorityList.add(Utils.HEADSET);

        priorityList.add(Utils.CHARGER);

        StringBuffer sb = new StringBuffer();

        int totalCount = 0;

        if (relatedAccessories != null) {

            for (Long catID : priorityList) {

                int individualCount = 0;

                List<Long> ents = relatedAccessories.get(catID);

                if (ents != null && !ents.isEmpty()) {

                    if (ents.size() > individualLimit) {

                        ents = ents.subList(0, individualLimit);

                    }

                    for (Long entID : ents) {

                        if (totalLimit > totalCount) {

                            sb.append(entID + "\n");

                            individualCount++;

                            totalCount++;

                        }

                    }

                }

            }

        }

        String exportFileName = exportPath + catalogId + File.separator

                + "RelatedAccessories.vm";

        File exportFile = new File(exportFileName);

        if (!exportFile.exists()) {

            exportFile.createNewFile();

        }

        BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(

                new FileOutputStream(exportFile)));

        writer.write(sb.toString());

        writer.flush();

        writer.close();

    }

    /**

     * Get most compared phones

     *

     * @param expEntity

     * @param exportPath

     * @throws Exception

     */

    private void getMostComparedProducts(ExpandedEntity expEntity,

            String exportPath) throws Exception {

        long catalogId = expEntity.getID();

        Map<Long, Long> comparedPhones = CreationUtils.getComparisonStats()

                .get(catalogId);

        StringBuffer sb = new StringBuffer();

        int maxCount = 10;

        int count = 0;

        if (comparedPhones != null) {

            for (Long entityID : comparedPhones.keySet()) {

                if (count > maxCount) {

                    break;

                }

                sb.append(entityID + "\n");

                count++;

            }

        }

        String exportFileName = exportPath + catalogId + File.separator

                + "MostComparedProducts.vm";

        File exportFile = new File(exportFileName);

        if (!exportFile.exists()) {

            exportFile.createNewFile();

        }

        BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(

                new FileOutputStream(exportFile)));

        writer.write(sb.toString());

        writer.flush();

        writer.close();

    }

    /**

     * Get the required parameters for generating velocity content.

     *

     * @param expEntity

     * @return

     * @throws Exception

     */

    private Map<String, String> getEntityParameters(ExpandedEntity expEntity)

            throws Exception {

        Map<String, String> params = new HashMap<String, String>();

        String title = EntityUtils.getProductName(expEntity);

        String brandName = expEntity.getBrand().trim();

        String productName = ((expEntity.getModelName() != null) ? expEntity

                .getModelName().trim() + SPACE : "")

                + ((expEntity.getModelNumber() != null) ? expEntity

                        .getModelNumber().trim() : "");

        String prodName = title;

        if (expEntity.getModelName() != null

                && !expEntity.getModelName().isEmpty()

                && (expEntity.getBrand().equals("Samsung") || expEntity

                        .getBrand().equals("Sony Ericsson"))) {

            prodName = expEntity.getBrand().trim()

                    + SPACE

                    + ((expEntity.getModelName() != null) ? expEntity

                            .getModelName().trim() : "");

        }

        String categoryName = expEntity.getCategory().getLabel();

        String tagline = "";

        String warranty = "";

        String tinySnippet = "";

        List<Feature> features = expEntity.getSlide(130054).getFeatures();

        for (Feature feature : features) {

            if (feature.getFeatureDefinitionID() == 120084) {

                PrimitiveDataObject dataObject = (PrimitiveDataObject) feature

                        .getBullets().get(0).getDataObject();

                tagline = dataObject.getValue();

            }

            if (feature.getFeatureDefinitionID() == 120089) {

                PrimitiveDataObject dataObject = (PrimitiveDataObject) feature

                        .getBullets().get(0).getDataObject();

                tinySnippet = dataObject.getValue();

            }

            if (feature.getFeatureDefinitionID() == 120081) {

                List<Bullet> bullets = feature.getBullets();

                int count = 1;

                for (Bullet bullet : bullets) {

                    PrimitiveDataObject dataObject = (PrimitiveDataObject) bullet

                            .getDataObject();

                    params.put("SNIPPET_" + count++, dataObject.getValue());

                }

            }

        }

        // Creating warranty string!

        for (Slide slide : expEntity.getSlide(130054).getChildrenSlides()) {

            if (slide.getSlideDefinitionID() == 130105) {

                ExpandedSlide expSlide = new ExpandedSlide(slide);

                Feature warrantyDurationFeature = expSlide.getExpandedFeature(120125);

                if (warrantyDurationFeature != null) {

                    ExpandedFeature expFeature = new ExpandedFeature(warrantyDurationFeature);

                    ExpandedBullet expBullet = expFeature.getExpandedBullets().get(0);

                    if (expBullet != null) {

                        String shortForm = expBullet.getUnit().getShortForm();

                        // Append 's' to month and year

                        if (!expBullet.getValue().trim().equals("1")) {

                            shortForm += "s";

                        }

                        warranty += expBullet.getValue() + SPACE + shortForm;

                    }

                }

                Feature warrantyTypeFeature = expSlide.getExpandedFeature(120219);

                if (warrantyTypeFeature != null) {

                    ExpandedFeature expFeature = new ExpandedFeature(warrantyTypeFeature);

                    ExpandedBullet expBullet = expFeature.getExpandedBullets().get(0);

                    if (expBullet != null) {

                        warranty += SPACE + expBullet.getExpandedEnumDataObject()

                                        .getEnumValue().getValue();

                    }

                }

                Feature warrantyCoverageFeature = expSlide.getExpandedFeature(120220);

                if (warrantyCoverageFeature != null) {

                    ExpandedFeature expFeature = new ExpandedFeature(warrantyCoverageFeature);

                    ExpandedBullet expBullet = expFeature.getExpandedBullets().get(0);

                    if (expBullet != null) {

                        warranty += SPACE + HYPHON + SPACE + expBullet.getExpandedEnumDataObject().getEnumValue().getValue();

                    }

                }

            }

        }

        long categoryId = expEntity.getCategory().getID();

        params.put("PROD_NAME", prodName);

        params.put("URL", EntityUtils.getEntityURL(expEntity));

        params.put("TITLE", title);

        params.put("BRAND_NAME", brandName);

        params.put("PRODUCT_NAME", productName);

        params.put("CATEGORY_ID", ((int) categoryId) + "");

        params.put("CATEGORY_NAME", categoryName);

        params.put("CATEGORY_URL", categoryName.replaceAll(SPACE, HYPHON)

                .toLowerCase() + "/" + categoryId);

        params.put(

                "PRODUCT_URL",

                URLEncoder.encode("http://www.", "UTF-8")

                        + "${domain}"

                        + URLEncoder.encode(

                                EntityUtils.getEntityURL(expEntity), "UTF-8"));

        if (expEntity.getCategory().getParentCategory().getID() != Utils.MOBILE_ACCESSORIES_CATEGORY

                && expEntity.getCategory().getID() != Utils.LAPTOPS_CATEGORY) {

            params.put("IS_MOBILE", "TRUE");

        } else {

            params.put("IS_MOBILE", "FALSE");

        }

        if (expEntity.getCategory().getParentCategory().getID() != Utils.MOBILE_ACCESSORIES_CATEGORY)	{

        	params.put("IS_COMPARABLE", "TRUE");

        } else	{

        	params.put("IS_COMPARABLE", "FALSE");

        }

        params.put("CATALOG_ID", expEntity.getID() + "");

        params.put("TAGLINE", tagline);

        params.put("WARRANTY", warranty);

        params.put("TINY_SNIPPET", tinySnippet);

        params.put("IMAGE_PREFIX", EntityUtils.getMediaPrefix(expEntity));

        params.put("contentVersion", contentVersion);

        params.put("skinImageCreationTime", String.valueOf(EntityUtils.getCreationTimeFromSummarySlide(expEntity, "skin")));

        params.put("DEFAULT_IMAGE_SUFFIX", String.valueOf(EntityUtils.getCreationTimeFromSummarySlide(expEntity, "default")));

        return params;

    }

    /**

     * Generates content for the specified entity embedding links to the

     * specified domain name.

     *

     * The method updates the member variable problems in any of the following

     * four cases:

     * <ol>

     * <li>The entity is not ready.

     * <li>The category has not been updated yet. (Set to -1).

     * <li>There are no items in the catalog corresponding to this entity.

     * <li>There are no active or content-complete items in the catalog

     * corresponding to this entity.

     * <li>Neither the items have been updated nor the content has been updated.

     * </ol>

     *

     * @param entity

     *            - Entity for which the content has to be generated.

     * @param domain

     *            - The domain name to be used to serve static content.

     * @param exportPath

     *            - Local file system path where content has to be generated.

     * @throws Exception

     */

    public void generateContentForOneEntity(Entity entity, String exportPath)

            throws Exception {

        ExpandedEntity expEntity = new ExpandedEntity(entity);

        long catalogId = expEntity.getID();

        // Create new directory

        File exportDir = new File(exportPath + catalogId);

        if (!exportDir.exists()) {

            exportDir.mkdir();

        }

        VelocityContext context = new VelocityContext();

        String mediaPrefix = EntityUtils.getMediaPrefix(expEntity);

        context.put("mediaPrefix", mediaPrefix);

        context.put("expentity", expEntity);

        context.put("contentVersion", this.contentVersion);

        context.put("defs", Catalog.getInstance().getDefinitionsContainer());

        context.put("helpdocs", CreationUtils.getHelpdocs());

        context.put("params", getEntityParameters(expEntity));

        List<String> filenames = new ArrayList<String>();

        filenames.add("ProductDetail");

        filenames.add("WidgetSnippet");

        filenames.add("HomeSnippet");

        filenames.add("SearchSnippet");

        filenames.add("CategorySnippet");

        filenames.add("SlideGuide");

        filenames.add("MyResearchSnippet");

        filenames.add("AfterSales");

        if (expEntity.getCategory().getParentCategory().getID() != Utils.MOBILE_ACCESSORIES_CATEGORY) {

        	// For laptops we do not have related accessories and most comparable

        	if(expEntity.getCategory().getID() != Utils.LAPTOPS_CATEGORY)	{

                filenames.add("PhonesIOwnSnippet");

                getRelatedAccessories(expEntity, exportPath);

                getMostComparedProducts(expEntity, exportPath);

        	}

            filenames.add("CompareProductSnippet");

            filenames.add("ComparisonSnippet");

            filenames.add("CompareProductSummarySnippet");

            // This method wont use any velocity file, So calling directly

            getSlidenamesSnippet(expEntity, exportPath);

        }

        // This method wont use any velocity file, So calling directly

        getProductPropertiesSnippet(expEntity, exportPath);

        applyVelocityTemplate(filenames, exportPath, context, catalogId);

        generateImages(expEntity, mediaPrefix);

        copyDocuments(expEntity, mediaPrefix);

    }

    /**

     * Get list of files and apply velocity templates on them

     *

     * @param filenames

     * @param exportPath

     * @param context

     * @param catalogId

     */

    private void applyVelocityTemplate(List<String> filenames,

            String exportPath, VelocityContext context, long catalogId) {

        try {

            Properties p = new Properties();

            p.setProperty("resource.loader", "file");

            p.setProperty("file.resource.loader.class",

                    "org.apache.velocity.runtime.resource.loader.FileResourceLoader");

            p.setProperty("file.resource.loader.path", Utils.VTL_SRC_PATH);

            Velocity.init(p);

            for (String filename : filenames) {

                Template template = Velocity.getTemplate(filename + ".vm");

                BufferedWriter writer = new BufferedWriter(

                        new OutputStreamWriter(

                                new FileOutputStream(exportPath + catalogId

                                        + File.separator + filename + ".vm")));

                template.merge(context, writer);

                writer.flush();

                writer.close();

            }

        } catch (ResourceNotFoundException e) {

            log.error("Error generating velocity templates", e);

        } catch (IOException e) {

            log.error("Error generating velocity templates", e);

        } catch (ParseErrorException e) {

            log.error("Error generating velocity templates", e);

        } catch (Exception e) {

            log.error("Error generating velocity templates", e);

        }

    }

}