Merge pull request #4 from bhaeussermann/master

Added Gson as Json-parser option.

Author: mattpwest

.gitignore

@@ -1,3 +1,6 @@
+.classpath
+.project
+.settings/**
 *.iml
 .idea
 **/target
@@ -6,3 +9,5 @@
 logs
 **/*.log
 output/move.txt
+/target/
+**/*.class

pom.xml

@@ -52,6 +52,12 @@
             <artifactId>jackson-databind</artifactId>
             <version>2.2.3</version>
         </dependency>
+
+        <dependency>
+            <groupId>com.google.api-client</groupId>
+            <artifactId>google-api-client-gson</artifactId>
+            <version>1.18.0-rc</version>
+        </dependency>
     </dependencies>
 
     <build>
@@ -93,4 +99,4 @@
             </resource>
         </resources>
     </build>
-</project>
+</project>

run.sh

@@ -1,23 +1,19 @@
 package za.co.entelect.challenge.bot;
 
-import com.fasterxml.jackson.databind.ObjectMapper;
-import com.jayway.jsonpath.JsonPath;
-import com.jayway.jsonpath.PathNotFoundException;
-import net.minidev.json.JSONArray;
 import za.co.entelect.challenge.dto.GameState;
-import za.co.entelect.challenge.dto.Missile;
 import za.co.entelect.challenge.dto.Player;
 import za.co.entelect.challenge.dto.Settings;
-import za.co.entelect.challenge.dto.enums.EntityType;
 import za.co.entelect.challenge.dto.enums.ShipCommand;
+import za.co.entelect.challenge.dto.reader.BasicGameStateReader;
+import za.co.entelect.challenge.dto.reader.GameStateReader;
+import za.co.entelect.challenge.dto.reader.GsonGameStateReader;
+import za.co.entelect.challenge.dto.reader.JacksonGameStateReader;
 import za.co.entelect.challenge.utils.BotHelper;
 import za.co.entelect.challenge.utils.FileHelper;
 import za.co.entelect.challenge.utils.LogHelper;
 
 import java.io.File;
 import java.io.IOException;
-import java.util.ArrayList;
-import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Random;
 
@@ -34,12 +30,13 @@ public BasicBot(Settings settings) {
     public void execute() {
 
         //Choose how you want to access the JSON
-        boolean basicAccess = false;
-
-        gameState = basicAccess ? loadBasicState() : loadAdvancedState();
-
-        loadAdvancedState();
+        GameStateReader reader = 
+                new BasicGameStateReader();
+                //new JacksonGameStateReader();
+                //new GsonGameStateReader();
 
+        gameState = loadGameState(reader);
+        
         logMatchState();
 
         StringBuilder map = loadMap();
@@ -49,128 +46,22 @@ public void execute() {
         saveMove(move);
     }
 
-    /**
-     * This method accesses the json elements directly
-     * Advantage: Fast and no need initialise everything - only use what you need
-     * Disadvantage: Match/Game State model only partially initialised
-     *
-     * @return match
-     */
-    private GameState loadBasicState() {
-        try {
-            GameState gameState = new GameState();
-
-            File jsonFile = FileHelper.getFile(settings.getDefaultOutputFolder(), settings.getStateFile());
-
-            loadRoundNumber(jsonFile, gameState);
-
-            String player1Path = "$.Players[0]";
-            String player2Path = "$.Players[1]";
-
-            Player player1 = loadPlayer(jsonFile, player1Path);
-            Player player2 = loadPlayer(jsonFile, player2Path);
-
-            gameState.getPlayers().add(player1);
-            gameState.getPlayers().add(player2);
-
-            return gameState;
-        } catch (IOException ioe) {
-            LogHelper.log("Unable to read state file: " + settings.getStateFile());
-            ioe.printStackTrace();
-            return null;
-        } catch (NumberFormatException nfe) {
-            LogHelper.log("Unable to convert Round Number to int: " + settings.getStateFile());
-            nfe.printStackTrace();
-            return null;
-        }
-    }
-
-    /**
-     * This method initialises the entire Game State model using Jackson
-     * Advantage: All elements are accessible
-     * Disadvantage: slower than method loadBasicState()
-     *
-     * @return match
-     */
-    private GameState loadAdvancedState() {
+    private GameState loadGameState(GameStateReader reader) {
         GameState gameState = null;
 
         File jsonFile = FileHelper.getFile(settings.getDefaultOutputFolder(), settings.getStateFile());
 
-        // ObjectMapper provides functionality for data binding between
-        // Java Bean Objects/POJO and JSON constructs/string
-        ObjectMapper mapper = new ObjectMapper();
-
         try {
-            gameState = mapper.readValue(jsonFile, GameState.class);
-        } catch (IOException ioe) {
-            LogHelper.log("Unable to read state file: " + settings.getStateFile());
+            gameState = reader.read(jsonFile);
+        } catch (Exception ioe) {
+            LogHelper.log("Error reading state file: " + settings.getStateFile());
             ioe.printStackTrace();
             return null;
         }
 
         return gameState;
     }
 
-    private void loadRoundNumber(File jsonFile, GameState gameState) throws IOException {
-        String roundNumber = "$.RoundNumber";
-        gameState.setRoundNumber(Integer.valueOf(JsonPath.read(jsonFile, roundNumber).toString()));
-    }
-
-    private Player loadPlayer(File jsonFile, String playerPath) throws IOException {
-        Player player = new Player();
-
-        try {
-            LinkedHashMap<String, Object> playerMap = JsonPath.read(jsonFile, playerPath);
-
-            player.setPlayerName((String)playerMap.get("PlayerName"));
-            player.setPlayerNumber((Integer)playerMap.get("PlayerNumber"));
-            player.setPlayerNumberReal((Integer)playerMap.get("PlayerNumberReal"));
-            player.setKills((Integer)playerMap.get("Kills"));
-            player.setLives((Integer)playerMap.get("Lives"));
-            player.setMissileLimit((Integer)playerMap.get("MissileLimit"));
-
-            JSONArray missiles = (JSONArray)playerMap.get("Missiles");
-
-            player.setMissiles(loadMissiles(missiles));
-
-        } catch (PathNotFoundException pnfe) {
-            LogHelper.log("Index out of bounds when evaluating path " + playerPath);
-            pnfe.printStackTrace();
-        }
-
-        return player;
-    }
-
-    private List<Object> loadMissiles(JSONArray missiles) {
-        List<Object> playerMissiles = new ArrayList<>();
-        Missile playerMissile;
-
-        for (Object missile : missiles) {
-            playerMissile = new Missile();
-
-            LinkedHashMap<String, Object> playerMissilesMap = (LinkedHashMap<String, Object>) missile;
-
-            playerMissile.setAlive((Boolean)playerMissilesMap.get("Alive"));
-            playerMissile.setX((Integer)playerMissilesMap.get("x"));
-            playerMissile.setY((Integer)playerMissilesMap.get("y"));
-            playerMissile.setWidth((Integer)playerMissilesMap.get("Width"));
-            playerMissile.setHeight((Integer)playerMissilesMap.get("Height"));
-            for (EntityType type : EntityType.values()) {
-                if (((String)playerMissilesMap.get("Type")).equalsIgnoreCase(type.toString())) {
-                    playerMissile.setType(type);
-                    break;
-                }
-            }
-            playerMissile.setPlayerNumber((Integer)playerMissilesMap.get("PlayerNumber"));
-            playerMissile.setActionRate((Integer)playerMissilesMap.get("ActionRate"));
-
-            playerMissiles.add(playerMissile);
-        }
-
-        return playerMissiles;
-    }
-
     private void logMatchState() {
         LogHelper.log(LogHelper.PREFIX + "Game state:");
         LogHelper.log("\tRound: " + gameState.getRoundNumber());
@@ -221,6 +112,4 @@ private void saveMove(String move) {
             ioe.printStackTrace();
         }
     }
-
-
 }

src/main/java/za/co/entelect/challenge/bot/BasicBot.java

@@ -1,7 +1,10 @@
 package za.co.entelect.challenge.dto;
 
 import com.fasterxml.jackson.annotation.*;
+import com.google.gson.annotations.SerializedName;
+
 import javax.annotation.Generated;
+
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -20,16 +23,22 @@
 public class AlienManager {
 
     @JsonProperty("PlayerNumber")
+    @SerializedName("PlayerNumber")
     private Integer playerNumber;
     @JsonProperty("Disabled")
+    @SerializedName("Disabled")
     private Boolean disabled;
     @JsonProperty("Waves")
+    @SerializedName("Waves")
     private List<List<Wave>> waves = new ArrayList<List<Wave>>();
     @JsonProperty("ShotEnergyCost")
+    @SerializedName("ShotEnergyCost")
     private Integer shotEnergyCost;
     @JsonProperty("ShotEnergy")
+    @SerializedName("ShotEnergy")
     private Integer shotEnergy;
     @JsonProperty("DeltaX")
+    @SerializedName("DeltaX")
     private Integer deltaX;
     @JsonIgnore
     private Map<String, Object> additionalProperties = new HashMap<String, Object>();

src/main/java/za/co/entelect/challenge/dto/AlienManager.java

@@ -1,8 +1,10 @@
 package za.co.entelect.challenge.dto;
 
 import com.fasterxml.jackson.annotation.*;
+import com.google.gson.annotations.SerializedName;
 
 import javax.annotation.Generated;
+
 import java.util.HashMap;
 
 @JsonInclude(JsonInclude.Include.NON_NULL)
@@ -15,10 +17,13 @@
 public class BuildingsAvailable {
 
     @JsonProperty("Command")
+    @SerializedName("Command")
     private String command;
     @JsonProperty("Type")
+    @SerializedName("Type")
     private String type;
     @JsonProperty("Cost")
+    @SerializedName("Cost")
     private Integer cost;
     @JsonIgnore
     private java.util.Map<String, Object> additionalProperties = new HashMap<String, Object>();

src/main/java/za/co/entelect/challenge/dto/BuildingsAvailable.java

@@ -1,7 +1,10 @@
 package za.co.entelect.challenge.dto;
 
 import com.fasterxml.jackson.annotation.*;
+import com.google.gson.annotations.SerializedName;
+
 import javax.annotation.Generated;
+
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -18,14 +21,19 @@
 public class GameState {
 
     @JsonProperty("BuildingsAvailable")
+    @SerializedName("BuildingsAvailable")
     private List<BuildingsAvailable> buildingsAvailable = new ArrayList<BuildingsAvailable>();
     @JsonProperty("Map")
+    @SerializedName("Map")
     private Map map;
     @JsonProperty("Players")
+    @SerializedName("Players")
     private List<Player> players = new ArrayList<Player>();
     @JsonProperty("RoundNumber")
+    @SerializedName("RoundNumber")
     private Integer roundNumber;
     @JsonProperty("RoundLimit")
+    @SerializedName("RoundLimit")
     private Integer roundLimit;
     @JsonIgnore
     private java.util.Map<String, Object> additionalProperties = new HashMap<String, Object>();

src/main/java/za/co/entelect/challenge/dto/GameState.java

@@ -1,8 +1,10 @@
 package za.co.entelect.challenge.dto;
 
 import com.fasterxml.jackson.annotation.*;
+import com.google.gson.annotations.SerializedName;
 
 import javax.annotation.Generated;
+
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -17,10 +19,13 @@
 public class Map {
 
     @JsonProperty("Width")
+    @SerializedName("Width")
     private Integer width;
     @JsonProperty("Height")
+    @SerializedName("Height")
     private Integer height;
     @JsonProperty("Rows")
+    @SerializedName("Rows")
     private List<List<Row>> rows = new ArrayList<List<Row>>();
     @JsonIgnore
     private java.util.Map<String, Object> additionalProperties = new HashMap<String, Object>();

src/main/java/za/co/entelect/challenge/dto/Map.java

@@ -1,8 +1,10 @@
 package za.co.entelect.challenge.dto;
 
 import com.fasterxml.jackson.annotation.*;
+import com.google.gson.annotations.SerializedName;
 
 import javax.annotation.Generated;
+
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -27,30 +29,43 @@
 public class Player {
 
     @JsonProperty("PlayerNumberReal")
+    @SerializedName("PlayerNumberReal")
     private Integer playerNumberReal;
     @JsonProperty("PlayerNumber")
+    @SerializedName("PlayerNumber")
     private Integer playerNumber;
     @JsonProperty("PlayerName")
+    @SerializedName("PlayerName")
     private String playerName;
     @JsonProperty("Ship")
+    @SerializedName("Ship")
     private Object ship;
     @JsonProperty("Kills")
+    @SerializedName("Kills")
     private Integer kills;
     @JsonProperty("Lives")
+    @SerializedName("Lives")
     private Integer lives;
     @JsonProperty("RespawnTimer")
+    @SerializedName("RespawnTimer")
     private Integer respawnTimer;
     @JsonProperty("Missiles")
+    @SerializedName("Missiles")
     private List<Object> missiles = new ArrayList<Object>();
     @JsonProperty("MissileLimit")
+    @SerializedName("MissileLimit")
     private Integer missileLimit;
     @JsonProperty("AlienWaveSize")
+    @SerializedName("AlienWaveSize")
     private Integer alienWaveSize;
     @JsonProperty("AlienFactory")
+    @SerializedName("AlienFactory")
     private Object alienFactory;
     @JsonProperty("MissileController")
+    @SerializedName("MissileController")
     private Object missileController;
     @JsonProperty("AlienManager")
+    @SerializedName("AlienManager")
     private za.co.entelect.challenge.dto.AlienManager alienManager;
     @JsonIgnore
     private java.util.Map<String, Object> additionalProperties = new HashMap<String, Object>();