diff options
Diffstat (limited to 'src/eu/equalparts/cardbase/utils')
| -rw-r--r-- | src/eu/equalparts/cardbase/utils/InputSanity.java | 27 | ||||
| -rw-r--r-- | src/eu/equalparts/cardbase/utils/MTGUniverse.java | 87 |
2 files changed, 42 insertions, 72 deletions
diff --git a/src/eu/equalparts/cardbase/utils/InputSanity.java b/src/eu/equalparts/cardbase/utils/InputSanity.java new file mode 100644 index 0000000..0571c73 --- /dev/null +++ b/src/eu/equalparts/cardbase/utils/InputSanity.java @@ -0,0 +1,27 @@ +package eu.equalparts.cardbase.utils; + +public class InputSanity { + public static boolean isInteger(String str) { + if (str == null) { + return false; + } + int length = str.length(); + if (length == 0) { + return false; + } + int i = 0; + if (str.charAt(0) == '-') { + if (length == 1) { + return false; + } + i = 1; + } + for (; i < length; i++) { + char c = str.charAt(i); + if (c < '0' || c > '9') { + return false; + } + } + return true; + } +} diff --git a/src/eu/equalparts/cardbase/utils/MTGUniverse.java b/src/eu/equalparts/cardbase/utils/MTGUniverse.java index 9412e6d..68e41e1 100644 --- a/src/eu/equalparts/cardbase/utils/MTGUniverse.java +++ b/src/eu/equalparts/cardbase/utils/MTGUniverse.java @@ -1,16 +1,16 @@ package eu.equalparts.cardbase.utils; import java.io.IOException; +import java.io.InputStream; import java.net.URL; +import java.net.URLConnection; import java.util.ArrayList; import java.util.HashMap; import java.util.List; -import java.util.Map; import com.fasterxml.jackson.core.JsonParseException; import com.fasterxml.jackson.core.type.TypeReference; import com.fasterxml.jackson.databind.JsonMappingException; -import com.fasterxml.jackson.databind.JsonNode; import eu.equalparts.cardbase.card.Card; import eu.equalparts.cardbase.card.CardSetInformation; @@ -98,8 +98,8 @@ public final class MTGUniverse { requestedSet = cardSetCache.get(validCode); } // not cached; fetch and cache - else { - requestedSet = parseFullSet(JSON.mapper.readTree(new URL(BASE_DATA_URL + validCode + ".json"))); + else { + requestedSet = JSON.mapper.readValue(getInputStream(BASE_DATA_URL + validCode + ".json"), FullCardSet.class); cardSetCache.put(validCode, requestedSet); } } @@ -113,7 +113,7 @@ public final class MTGUniverse { // if the list isn't cached, fetch and cache it if (cardSets == null) { try { - cardSets = JSON.mapper.readValue(new URL(BASE_DATA_URL + "SetList.json"), new TypeReference<ArrayList<CardSetInformation>>() {}); + cardSets = JSON.mapper.readValue(getInputStream(BASE_DATA_URL + "SetList.json"), new TypeReference<ArrayList<CardSetInformation>>() {}); } catch (Exception e) { System.out.println("Error: could not fetch or parse set code list from upstream, using fallback json..."); // e.printStackTrace(); @@ -152,74 +152,17 @@ public final class MTGUniverse { } /** - * This method is necessary to adapt the list of cards in the json to - * the map format used in cardbase. + * Generates and returns a proper input stream with the correct user agent to ensure + * MTG JSON doesn't return any annoying 403s. * - * @param jsonTree the tree-representation of the json to be parsed. - * @return the parsed full card set. - * - * @throws JsonMappingException if the upstream JSON does not map to {@code FullCardSet}. - * @throws IOException if a low-level I/O problem (unexpected end-of-input, network error) occurs. + * @param URL + * @return + * @throws IOException */ - private FullCardSet parseFullSet(JsonNode jsonTree) throws JsonMappingException, IOException { - - FullCardSet fcs = new FullCardSet(); - - /* - * These fields are critical, if any of them is not present an exception is thrown. - */ - if (jsonTree.hasNonNull("name")) { - fcs.name = jsonTree.get("name").asText(); - } else { - throw new JsonMappingException("Field \"name\" not found."); - } - - String setCode; - if (jsonTree.hasNonNull("code")) { - setCode = jsonTree.get("code").asText(); - fcs.code = setCode; - } else { - throw new JsonMappingException("Field \"code\" not found."); - } - - String imageCode; - if (jsonTree.hasNonNull("magicCardsInfoCode")) { - imageCode = jsonTree.get("magicCardsInfoCode").asText(); - fcs.magicCardsInfoCode = imageCode; - } else { - throw new JsonMappingException("Field \"magicCardsInfoCode\" not found."); - } - - if (jsonTree.hasNonNull("releaseDate")) { - fcs.releaseDate = jsonTree.get("releaseDate").asText(); - } else { - throw new JsonMappingException("Field \"releaseDate\" not found."); - } - - if (jsonTree.hasNonNull("cards")) { - // attempt to read card list as a POJO using the standard mapper - List<Card> rawList = jsonTree.get("cards").traverse(JSON.mapper).readValueAs(new TypeReference<List<Card>>() {}); - // generate the map - Map<String, Card> cardMap = new HashMap<String, Card>(); - for (Card card : rawList) { - // add set code for convenience - card.setCode.set(setCode); - card.imageCode.set(imageCode); - cardMap.put(card.number.get(), card); - } - fcs.cards = cardMap; - } else { - throw new JsonMappingException("Field \"cards\" not found."); - } - - /* - * These fields are optional and are set to null if not present. - */ - fcs.gathererCode = jsonTree.hasNonNull("gathererCode") ? jsonTree.get("gathererCode").asText() : null; - fcs.border = jsonTree.hasNonNull("border") ? jsonTree.get("border").asText() : null; - fcs.type = jsonTree.hasNonNull("type") ? jsonTree.get("type").asText() : null; - fcs.block = jsonTree.hasNonNull("block") ? jsonTree.get("block").asText() : null; - - return fcs; + private InputStream getInputStream(String url) throws IOException { + URLConnection connection = new URL(url).openConnection(); + connection.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.95 Safari/537.11"); + connection.connect(); + return connection.getInputStream(); } }
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