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Switched the Loader implementation over to use the relatively generic
SpreadsheetDrivenInstantiator. (Note that this means the spreadsheets are now accessed primarily by column number rather than the headings in the first row.)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,168 +1,24 @@ | ||
| package edu.gac.mcs270.gack.server; | ||
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| import java.net.URL; | ||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
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| import com.google.gdata.client.spreadsheet.SpreadsheetService; | ||
| import com.google.gdata.data.spreadsheet.CustomElementCollection; | ||
| import com.google.gdata.data.spreadsheet.ListEntry; | ||
| import com.google.gdata.data.spreadsheet.ListFeed; | ||
| import com.google.gdata.data.spreadsheet.WorksheetEntry; | ||
| import com.google.gdata.data.spreadsheet.WorksheetFeed; | ||
| import com.google.gwt.user.server.rpc.RemoteServiceServlet; | ||
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| import edu.gac.mcs270.gack.shared.Loader; | ||
| import edu.gac.mcs270.gack.shared.domain.AutoPerson; | ||
| import edu.gac.mcs270.gack.shared.domain.Person; | ||
| import edu.gac.mcs270.gack.shared.domain.Place; | ||
| import edu.gac.mcs270.gack.shared.domain.Scroll; | ||
| import edu.gac.mcs270.gack.shared.domain.Thing; | ||
| import edu.gac.mcs270.gack.shared.domain.Witch; | ||
| import edu.gac.mcs270.gack.shared.domain.Wizard; | ||
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| import edu.gac.mcs270.utilities.SpreadsheetDrivenInstantiator; | ||
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| public class LoaderImpl extends RemoteServiceServlet implements Loader { | ||
| private static final long serialVersionUID = -282279873378400604L; | ||
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| private static final long serialVersionUID = 3141859568997802325L; | ||
| private Map<String, Place> places; | ||
| private Map<String, Thing> things; | ||
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| public Person getPlayer(){ | ||
| SpreadsheetService service = new SpreadsheetService("max.mcs.gac.edu-Gack-0.0"); | ||
| WorksheetFeed feed; | ||
| try { | ||
| URL feedURL = new URL("https://spreadsheets.google.com/feeds/worksheets/0Av6ZjRxtPYJqdHI3aEtxR3lUeEtMeDNQcnpKZDZvbGc/public/values"); | ||
| feed = service.getFeed(feedURL, WorksheetFeed.class); | ||
| } catch (Exception e) { | ||
| throw new Error("Trouble getting worksheet feed", e); | ||
| } | ||
| ListFeed placeFeed=null, neighborsFeed=null, autoPersonFeed=null, witchFeed=null, wizardFeed=null, | ||
| thingFeed=null, scrollFeed=null, gainFeed=null, personFeed=null; | ||
| for (WorksheetEntry worksheet : feed.getEntries()) { | ||
| String title = worksheet.getTitle().getPlainText(); | ||
| if("Place".equals(title)){ | ||
| placeFeed = getListFeed(service, worksheet.getListFeedUrl()); | ||
| } else if("Place.addNewNeighbor".equals(title)){ | ||
| neighborsFeed = getListFeed(service, worksheet.getListFeedUrl()); | ||
| } else if("AutoPerson".equals(title)){ | ||
| autoPersonFeed = getListFeed(service, worksheet.getListFeedUrl()); | ||
| } else if("Witch".equals(title)){ | ||
| witchFeed = getListFeed(service, worksheet.getListFeedUrl()); | ||
| } else if("Wizard".equals(title)){ | ||
| wizardFeed = getListFeed(service, worksheet.getListFeedUrl()); | ||
| } else if("Thing".equals(title)){ | ||
| thingFeed = getListFeed(service, worksheet.getListFeedUrl()); | ||
| } else if("Scroll".equals(title)){ | ||
| scrollFeed = getListFeed(service, worksheet.getListFeedUrl()); | ||
| } else if("Place.gain".equals(title)){ | ||
| gainFeed = getListFeed(service, worksheet.getListFeedUrl()); | ||
| } else if("Person".equals(title)){ | ||
| personFeed = getListFeed(service, worksheet.getListFeedUrl()); | ||
| } else { | ||
| throw new Error("Unexpected worksheet " + title); | ||
| } | ||
| } | ||
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| places = new HashMap<String, Place>(); | ||
| things = new HashMap<String, Thing>(); | ||
| for (ListEntry entry : placeFeed.getEntries()) { | ||
| String name = entry.getCustomElements().getValue("name"); | ||
| places.put(name, new Place(name)); | ||
| } | ||
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| for (ListEntry entry : neighborsFeed.getEntries()) { | ||
| CustomElementCollection customElements = entry.getCustomElements(); | ||
| Place source = getPlace(customElements.getValue("source")); | ||
| String direction = customElements.getValue("direction"); | ||
| Place destination = getPlace(customElements.getValue("destination")); | ||
| source.addNewNeighbor(direction, destination); | ||
| } | ||
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| for (ListEntry entry : autoPersonFeed.getEntries()){ | ||
| CustomElementCollection customElements = entry.getCustomElements(); | ||
| String name = customElements.getValue("name"); | ||
| Place place = getPlace(customElements.getValue("place")); | ||
| int threshold = Integer.parseInt(customElements.getValue("threshold")); | ||
| new AutoPerson(name, place, threshold); | ||
| } | ||
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| for (ListEntry entry : witchFeed.getEntries()){ | ||
| CustomElementCollection customElements = entry.getCustomElements(); | ||
| String name = customElements.getValue("name"); | ||
| Place place = getPlace(customElements.getValue("place")); | ||
| int threshold = Integer.parseInt(customElements.getValue("threshold")); | ||
| Place pond = getPlace(customElements.getValue("pond")); | ||
| new Witch(name, place, threshold, pond); | ||
| } | ||
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| for (ListEntry entry : wizardFeed.getEntries()){ | ||
| CustomElementCollection customElements = entry.getCustomElements(); | ||
| String name = customElements.getValue("name"); | ||
| Place place = getPlace(customElements.getValue("place")); | ||
| int threshold = Integer.parseInt(customElements.getValue("threshold")); | ||
| Place chamber = getPlace(customElements.getValue("chamber")); | ||
| new Wizard(name, place, threshold, chamber); | ||
| } | ||
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| for (ListEntry entry : thingFeed.getEntries()){ | ||
| CustomElementCollection customElements = entry.getCustomElements(); | ||
| String name = customElements.getValue("name"); | ||
| things.put(name, new Thing(name)); | ||
| } | ||
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| for (ListEntry entry : scrollFeed.getEntries()){ | ||
| CustomElementCollection customElements = entry.getCustomElements(); | ||
| String name = customElements.getValue("name"); | ||
| things.put(name, new Scroll(name)); | ||
| } | ||
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| for (ListEntry entry : gainFeed.getEntries()){ | ||
| CustomElementCollection customElements = entry.getCustomElements(); | ||
| Place place = getPlace(customElements.getValue("place")); | ||
| Thing thing = getThing(customElements.getValue("thing")); | ||
| place.gain(thing); | ||
| } | ||
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| Person player = null; | ||
| for (ListEntry entry : personFeed.getEntries()){ | ||
| CustomElementCollection customElements = entry.getCustomElements(); | ||
| String name = customElements.getValue("name"); | ||
| Place place = getPlace(customElements.getValue("place")); | ||
| Person p = new Person(name, place); | ||
| if(name.equals("player")){ | ||
| player = p; | ||
| } | ||
| } | ||
| return player; | ||
| SpreadsheetDrivenInstantiator sdi = new SpreadsheetDrivenInstantiator( | ||
| "0Av6ZjRxtPYJqdHI3aEtxR3lUeEtMeDNQcnpKZDZvbGc", | ||
| "edu.gac.mcs270.gack.shared.domain"); | ||
| return sdi.getInstance(Person.class, "player"); | ||
| } | ||
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| public LoaderImpl() { | ||
| super(); | ||
| } | ||
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| private ListFeed getListFeed(SpreadsheetService service, URL url) throws Error { | ||
| ListFeed feed; | ||
| try { | ||
| feed = service.getFeed(url, ListFeed.class); | ||
| } catch (Exception e) { | ||
| throw new Error("Trouble getting list feed", e); | ||
| } | ||
| return feed; | ||
| } | ||
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| private Place getPlace(String placeName) throws Error { | ||
| Place place = places.get(placeName); | ||
| if(place==null) | ||
| throw new Error("Unkown place " + placeName); | ||
| return place; | ||
| } | ||
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| private Thing getThing(String thingName) throws Error { | ||
| Thing thing = things.get(thingName); | ||
| if(thing==null) | ||
| throw new Error("Unkown thing " + thingName); | ||
| return thing; | ||
| } | ||
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| } | ||
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