1 | using System;
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2 | using System.Collections.Generic;
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3 | using System.Linq;
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4 | using System.Text;
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5 | using HeuristicLab.PluginInfrastructure;
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6 | using HeuristicLab.Hive.Client.Communication;
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7 | using HeuristicLab.Hive.Client.Common;
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8 | using HeuristicLab.Hive.Contracts.BusinessObjects;
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9 | using HeuristicLab.Tracing;
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10 |
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11 | namespace HeuristicLab.Hive.Client.Core {
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12 | public class PluginCache {
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13 |
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14 | private static PluginCache instance = null;
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15 | public static PluginCache Instance {
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16 | get {
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17 | if (instance == null)
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18 | instance = new PluginCache();
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19 | return instance;
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20 | }
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21 | }
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22 |
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23 | private List<CachedHivePluginInfoDto> pluginCache;
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24 |
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25 |
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26 | public PluginCache() {
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27 | pluginCache = new List<CachedHivePluginInfoDto>();
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28 | }
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29 |
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30 | public void AddPlugin(CachedHivePluginInfoDto plugin) {
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31 | pluginCache.Add(plugin);
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32 | }
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33 |
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34 | public List<CachedHivePluginInfoDto> GetPlugins(List<HivePluginInfoDto> requests) {
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35 | Logger.Debug("Fetching plugins for job");
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36 | List<CachedHivePluginInfoDto> neededPlugins = new List<CachedHivePluginInfoDto>();
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37 | List<HivePluginInfoDto> missingPlugins = new List<HivePluginInfoDto>();
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38 | bool found = false;
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39 |
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40 | foreach (HivePluginInfoDto info in requests) {
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41 | //we MAY run in problems here - if there is a plugin twice in requests, there may be added two different versions of the plugin
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42 | foreach (CachedHivePluginInfoDto cache in pluginCache) {
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43 | if (info.Name.Equals(cache.Name) && info.Version.Equals(cache.Version) && info.BuildDate <= cache.BuildDate) {
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44 | Logger.Debug("Found plugin " + info.Name + ", " + info.Version);
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45 | neededPlugins.Add(cache);
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46 | found = true;
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47 | break;
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48 | }
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49 | }
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50 | if (!found)
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51 | Logger.Debug("Found NOT found " + info.Name + ", " + info.Version);
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52 | missingPlugins.Add(info);
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53 | found = false;
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54 | }
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55 |
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56 | Logger.Debug("Requesting missing plugins");
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57 | List<CachedHivePluginInfoDto> receivedPlugins = WcfService.Instance.RequestPlugins(missingPlugins);
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58 | Logger.Debug("Requested missing plugins");
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59 |
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60 | if (receivedPlugins != null) {
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61 | neededPlugins.AddRange(receivedPlugins);
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62 | pluginCache.AddRange(receivedPlugins);
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63 | } else
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64 | Logger.Error("Fetching of the plugins failed!");
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65 |
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66 | return neededPlugins;
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67 | }
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68 |
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69 | }
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70 | }
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