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import org.apache.struts2.convention.annotation.Action;
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import org.apache.struts2.convention.annotation.Action;
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import org.apache.thrift.TException;
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import org.apache.thrift.TException;
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 17 
 
18 
/**
 18 
/**
19 
 *
19 
 *
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 * @author rajveer
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 * @author chandranshu
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 *
 21 
 *
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 */
 22 
 */
23 
@SuppressWarnings("serial")
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@SuppressWarnings("serial")
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public class HomeController extends BaseController {
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public class HomeController extends BaseController {
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 25 
 
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	private static Logger logger = Logger.getLogger(Class.class);
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	private static Logger logger = Logger.getLogger(Class.class);
27
27
28 
	private List<String> bestDealSnippets = null;
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	private static List<String> bestDealSnippets = null;
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	private List<String> bestSellerSnippets = null;
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	private static List<String> bestSellerSnippets = null;
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	private List<String> latestArrivalSnippets = null;
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	private static List<String> latestArrivalSnippets = null;
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31
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	public HomeController(){
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	public HomeController(){
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		super();
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		super();
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	}
 34 
	}
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 35 
 
- 
 
 36 
    /**
- 
 
 37 
     * Renders the home page. Loads the snippets for best deals, best sellers
- 
 
 38 
     * and latest arrivals if they haven't been loaded already.
- 
 
 39 
     *
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     * @return Name of the view to render.
- 
 
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     * @throws SecurityException
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     * @throws IOException
- 
 
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     */
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	@Action("/")
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	@Action("/")
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    public String index() throws SecurityException, IOException {
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    public String index() throws SecurityException, IOException {
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    	logger.info("userinfo:" + userinfo.toString());
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    	logger.debug("userinfo:" + userinfo.toString());
- 
 
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    	logger.info("Rendering the home page");
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48
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		List<Long> bestDealCatalogIds = null;
 - 
 
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		List<Long> bestSellerCatalogIds = null;
 - 
 
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 		List<Long> latestArrivalCatalogIds = null;
 - 
 
43
- 
 
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 		int bestSellerCount = 4;
 - 
 
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 		int latestArrivalCount = 4;
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- 
 
47 
		try {
 - 
 
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			CatalogServiceClient catalogServiceClient = new CatalogServiceClient();
 - 
 
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			Client client = catalogServiceClient.getClient();
 - 
 
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- 
 
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			//Get top 4 best deals
- 
 
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			bestDealCatalogIds = client.getBestDealsCatalogIds(0, 4, null, -1);
 - 
 
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- 
 
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			//Get top 8 best sellers b'coz 4 of them may overlap with best deals.
 - 
 
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			bestSellerCatalogIds = client.getBestSellersCatalogIds(0, 8, null, -1);
 49 
    	if(bestDealSnippets == null || bestSellerSnippets == null || latestArrivalSnippets == null){
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			bestSellerCatalogIds.removeAll(bestDealCatalogIds);
 - 
 
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			if(bestSellerCatalogIds.size() < bestSellerCount)
 - 
 
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				bestSellerCount = bestSellerCatalogIds.size();
 - 
 
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- 
 
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			//Get top 12 latest arrivals b'coz 4 of them may overlap with best deals
 - 
 
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			//while another 4 may overlap with best sellers.
 - 
 
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			latestArrivalCatalogIds = client.getLatestArrivalsCatalogIds(0, 12, null, 10003);
 - 
 
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			latestArrivalCatalogIds.removeAll(bestDealCatalogIds);
 - 
 
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			latestArrivalCatalogIds.removeAll(bestSellerCatalogIds.subList(0, bestSellerCount)); //We're only considering the first 4 best sellers for removal.
 - 
 
65 
			if(latestArrivalCatalogIds.size() < latestArrivalCount)
 - 
 
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				latestArrivalCount = latestArrivalCatalogIds.size();
 - 
 
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		} catch (InventoryServiceException e) {
 - 
 
68 
			logger.error("Error while fetching data from the catalog service", e);
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    	    logger.info("Cache miss: Reloading best deals, best sellers and latest arrivals");
69 
		} catch (TException e) {
 51 
            setSnippets();
70 
			logger.error("Error while fetching data from the catalog service", e);
 - 
 
71 
		} catch (Exception e) {
 - 
 
72 
			logger.error("Unexpected exception", e);
 - 
 
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		}
 52 
    	}
74
53
75 
		bestDealSnippets = getSnippets(bestDealCatalogIds);
 - 
 
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		bestSellerSnippets = getSnippets(bestSellerCatalogIds.subList(0, bestSellerCount));
 - 
 
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		latestArrivalSnippets = getSnippets(latestArrivalCatalogIds).subList(0, latestArrivalCount);
 - 
 
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- 
 
79 
    	return "index";
 54 
    	return "index";
80 
    }
 55 
    }
81 
 
 56 
 
82 
	/**
 57 
    /**
83 
	 * Returns a list of snippets to be used on the home page corresponding to
 - 
 
84 
	 * the given catalog ids. The snippets are in the same order as the ids in
 58 
     * Renders the home page but always loads the snippets for best deals, best
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	 * the input list. In case a snippet is not found for an entity, this method
 59 
     * sellers and latest arrivals unconditionally. Should be used to reset the
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	 * simply logs the problem and moves on.
 60 
     * snippets.
87 
	 *
61 
     *
88 
	 * @param catalogIds
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     * @return Name of the view to render.
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	 *            Ids of the entities which we want to show.
 63 
     * @throws SecurityException
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	 * @return The snippet corresponding to each catalog entity
 64 
     * @throws IOException
91 
	 */
 65 
     */
92 
	private List<String> getSnippets(List<Long> catalogIds) {
 66 
	@Action("/refresh-home")
93 
		List<String> snippets = new ArrayList<String>();
 67 
	public String destroy() throws SecurityException, IOException{
94 
		if(catalogIds == null)
 68 
	    logger.info("Reloading best deals, best sellers and latest arrivals");
95 
			return snippets;
 69 
	    setSnippets();
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		for(Long item: catalogIds){
 - 
 
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			try{
 - 
 
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				snippets.add(FileUtils.read( Utils.EXPORT_ENTITIES_PATH + item + File.separator +"HomeSnippet.html"));
 - 
 
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			}catch(IOException ioex){
 - 
 
100 
				logger.error("Unable to get home page snippet for " + item, ioex);
 - 
 
101 
			}
 - 
 
102 
		}
 - 
 
103 
		return snippets;
 70 
	    return "index";
104 
	}
 71 
	}
105
72
106 
	public List<String> getBestDealSnippets(){
 73 
	public List<String> getBestDealSnippets(){
107 
		return bestDealSnippets;
74 
		return bestDealSnippets;
108 
	}
 75 
	}
109
76
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	public List<String> getBestSellerSnippets(){
 77 
	public List<String> getBestSellerSnippets(){
Line 112... Line 79...
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	}
 79 
	}
113
80
114 
	public List<String> getLatestArrivalSnippets(){
 81 
	public List<String> getLatestArrivalSnippets(){
115 
		return latestArrivalSnippets;
 82 
		return latestArrivalSnippets;
116 
	}
 83 
	}
- 
 
 84 
 
- 
 
 85 
	/**
- 
 
 86 
	 * Loads the snippets for best deals, best sellers and latest arrivals
- 
 
 87 
	 * into memory.
- 
 
 88 
	 */
- 
 
 89 
    private void setSnippets() {
- 
 
 90 
        List<Long> bestDealCatalogIds = null;
- 
 
 91 
        List<Long> bestSellerCatalogIds = null;
- 
 
 92 
        List<Long> latestArrivalCatalogIds = null;
- 
 
 93
- 
 
 94 
        int bestSellerCount = 4;
- 
 
 95 
        int latestArrivalCount = 4;
- 
 
 96
- 
 
 97 
        try {
- 
 
 98 
            CatalogServiceClient catalogServiceClient = new CatalogServiceClient();
- 
 
 99 
            Client client = catalogServiceClient.getClient();
- 
 
 100
- 
 
 101 
            //Get top 4 best deals
- 
 
 102 
            bestDealCatalogIds = client.getBestDealsCatalogIds(0, 4, null, -1);
- 
 
 103
- 
 
 104 
            //Get top 8 best sellers b'coz 4 of them may overlap with best deals.
- 
 
 105 
            bestSellerCatalogIds = client.getBestSellersCatalogIds(0, 8, null, -1);
- 
 
 106 
            bestSellerCatalogIds.removeAll(bestDealCatalogIds);
- 
 
 107 
            if(bestSellerCatalogIds.size() < bestSellerCount)
- 
 
 108 
                bestSellerCount = bestSellerCatalogIds.size();
- 
 
 109
- 
 
 110 
            //Get top 12 latest arrivals b'coz 4 of them may overlap with best deals
- 
 
 111 
            //while another 4 may overlap with best sellers.
- 
 
 112 
            latestArrivalCatalogIds = client.getLatestArrivalsCatalogIds(0, 12, null, 10003);
- 
 
 113 
            latestArrivalCatalogIds.removeAll(bestDealCatalogIds);
- 
 
 114 
            latestArrivalCatalogIds.removeAll(bestSellerCatalogIds.subList(0, bestSellerCount)); //We're only considering the first 4 best sellers for removal.
- 
 
 115 
            if(latestArrivalCatalogIds.size() < latestArrivalCount)
- 
 
 116 
                latestArrivalCount = latestArrivalCatalogIds.size();
- 
 
 117 
        } catch (InventoryServiceException e) {
- 
 
 118 
            logger.error("Error while fetching data from the catalog service", e);
- 
 
 119 
        } catch (TException e) {
- 
 
 120 
            logger.error("Error while fetching data from the catalog service", e);
- 
 
 121 
        } catch (Exception e) {
- 
 
 122 
            logger.error("Unexpected exception", e);
- 
 
 123 
        }
- 
 
 124
- 
 
 125 
        bestDealSnippets = getSnippets(bestDealCatalogIds);
- 
 
 126 
        bestSellerSnippets = getSnippets(bestSellerCatalogIds.subList(0, bestSellerCount));
- 
 
 127 
        latestArrivalSnippets = getSnippets(latestArrivalCatalogIds).subList(0, latestArrivalCount);
- 
 
 128 
    }
- 
 
 129
- 
 
 130 
    /**
- 
 
 131 
     * Returns a list of snippets to be used on the home page corresponding to
- 
 
 132 
     * the given catalog ids. The snippets are in the same order as the ids in
- 
 
 133 
     * the input list. In case a snippet is not found for an entity, this method
- 
 
 134 
     * simply logs the problem and moves on.
- 
 
 135 
     *
- 
 
 136 
     * @param catalogIds
- 
 
 137 
     *            Ids of the entities which we want to show.
- 
 
 138 
     * @return The snippet corresponding to each catalog entity
- 
 
 139 
     */
- 
 
 140 
    private List<String> getSnippets(List<Long> catalogIds) {
- 
 
 141 
        List<String> snippets = new ArrayList<String>();
- 
 
 142 
        if(catalogIds == null)
- 
 
 143 
            return snippets;
- 
 
 144 
        for(Long item: catalogIds){
- 
 
 145 
            try{
- 
 
 146 
                snippets.add(FileUtils.read( Utils.EXPORT_ENTITIES_PATH + item + File.separator +"HomeSnippet.html"));
- 
 
 147 
            }catch(IOException ioex){
- 
 
 148 
                logger.error("Unable to get home page snippet for " + item, ioex);
- 
 
 149 
            }
- 
 
 150 
        }
- 
 
 151 
        return snippets;
- 
 
 152 
    }
117 
}
 153 
}