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@ -35,31 +35,35 @@ public class EggTool {
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public static final boolean JSON_FILE_FORMAT = false; // JSON is slow but easier to debug
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public static void layEggs(Env env) {
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if (JSON_FILE_FORMAT)
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layJsonEggs(env);
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else
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laySerializedEggs(env);
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}
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public static void loadEggs(Env env) {
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if (JSON_FILE_FORMAT)
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loadJsonEggs(env);
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else
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loadSerializedEggs(env);
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}
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/**
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* 利用Java串行机制存盘。 能量多(也就是吃的更多，更fat)的Frog下蛋并存盘, 以进行下一伦测试，能量少的Frog被淘汰，没有下蛋的资格。
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*/
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public static void layEggs(Env env) {
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public static void laySerializedEggs(Env env) {
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sortFrogsOrderByEnergyDesc(env);
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System.out.print("First frog energy=" + env.frogs.get(0).energy);
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System.out.print(", Last frog energy=" + env.frogs.get(env.frogs.size() - 1).energy + ", ");
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for (Frog frog : env.frogs) {
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System.out.print(frog.energy + ",");
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}
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System.out.println();
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try {
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List<Egg> newEggs = new ArrayList<Egg>();
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for (int i = 0; i < env.frogs.size() / 10; i++)
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for (int i = 0; i < env.frogs.size() / 4; i++)
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newEggs.add(env.frogs.get(i).layEgg());
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if (JSON_FILE_FORMAT) {
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String newEggsString = JSON.toJSONString(newEggs);
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FrogFileUtils.writeFile(Application.CLASSPATH + "eggs.json", newEggsString, "utf-8");
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} else {
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FileOutputStream fo = new FileOutputStream(Application.CLASSPATH + "eggs.ser");
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ObjectOutputStream so = new ObjectOutputStream(fo);
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so.writeObject(newEggs);
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so.close();
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}
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FileOutputStream fo = new FileOutputStream(Application.CLASSPATH + "eggs.ser");
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ObjectOutputStream so = new ObjectOutputStream(fo);
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so.writeObject(newEggs);
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so.close();
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env.eggs = newEggs;
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System.out
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.println("Saved " + env.eggs.size() + " eggs to file '" + Application.CLASSPATH + "eggs.ser" + "'");
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@ -68,11 +72,27 @@ public class EggTool {
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}
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}
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/** 类似laySerializedEggs方法，但是存为JSON格式 ，以方便调试 */
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public static void layJsonEggs(Env env) {
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sortFrogsOrderByEnergyDesc(env);
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System.out.print("First frog energy=" + env.frogs.get(0).energy);
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System.out.print(", Last frog energy=" + env.frogs.get(env.frogs.size() - 1).energy + ", ");
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List<Egg> newEggs = new ArrayList<Egg>();
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for (int i = 0; i < env.frogs.size() / 4; i++)
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newEggs.add(env.frogs.get(i).layEgg());
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String newEggsString = JSON.toJSONString(newEggs);
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FrogFileUtils.writeFile(Application.CLASSPATH + "eggs.json", newEggsString, "utf-8");
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env.eggs = newEggs;
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System.out.println("Saved " + env.eggs.size() + " eggs to file '" + Application.CLASSPATH + "eggs.json" + "'");
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}
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private static void sortFrogsOrderByEnergyDesc(Env env) {
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Collections.sort(env.frogs, new Comparator<Frog>() {
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public int compare(Frog a, Frog b) {
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if (a.energy >= b.energy)
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if (a.energy > b.energy)
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return -1;
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else if (a.energy == b.energy)
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return 0;
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else
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return 1;
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}
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@ -83,41 +103,44 @@ public class EggTool {
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* 从磁盘读入一批Egg
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*/
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@SuppressWarnings("unchecked")
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public static void loadEggs(Env env) {
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boolean errorfound = false;
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if (JSON_FILE_FORMAT) {
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String eggsString = FrogFileUtils.readFile(Application.CLASSPATH + "eggs.json", "utf-8");
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if (eggsString != null) {
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List<JSONObject> jsonEggs = (List<JSONObject>) JSON.parse(eggsString);
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env.eggs = new ArrayList<Egg>();
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for (JSONObject json : jsonEggs) {
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Egg egg = json.toJavaObject(Egg.class);
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env.eggs.add(egg);
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}
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System.out.println(
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"Loaded " + env.eggs.size() + " eggs from file '" + Application.CLASSPATH + "eggs.json" + "'.");
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} else
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errorfound = true;
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} else {
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try {
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FileInputStream eggsFile = new FileInputStream(Application.CLASSPATH + "eggs.ser");
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ObjectInputStream eggsInputStream = new ObjectInputStream(eggsFile);
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env.eggs = (List<Egg>) eggsInputStream.readObject();
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System.out.println(
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"Loaded " + env.eggs.size() + " eggs from file '" + Application.CLASSPATH + "eggs.ser" + "'.");
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eggsInputStream.close();
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} catch (Exception e) {
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errorfound = true;
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e.printStackTrace();
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}
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public static void loadSerializedEggs(Env env) {
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try {
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FileInputStream eggsFile = new FileInputStream(Application.CLASSPATH + "eggs.ser");
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ObjectInputStream eggsInputStream = new ObjectInputStream(eggsFile);
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env.eggs = (List<Egg>) eggsInputStream.readObject();
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System.out.println(
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"Loaded " + env.eggs.size() + " eggs from file '" + Application.CLASSPATH + "eggs.ser" + "'.");
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eggsInputStream.close();
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} catch (Exception e) {
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System.out.println("No eggs files ' " + Application.CLASSPATH + "eggs.ser" + "' found, created "
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+ env.EGG_QTY + " new eggs to do test.");
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env.eggs = new ArrayList<Egg>();
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for (int i = 0; i < env.EGG_QTY; i++)
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env.eggs.add(Egg.createBrandNewEgg());
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}
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if (errorfound) {
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System.out.println("No eggs files ' " + Application.CLASSPATH + " found, created " + env.EGG_QTY
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+ " new eggs to do test.");
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}
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/** 类似loadSerializedEggs方法，但是读取的是JSON格式，以方便调试 */
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@SuppressWarnings("unchecked")
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public static void loadJsonEggs(Env env) {
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String eggsString = FrogFileUtils.readFile(Application.CLASSPATH + "eggs.json", "utf-8");
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if (eggsString != null) {
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List<JSONObject> jsonEggs = (List<JSONObject>) JSON.parse(eggsString);
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env.eggs = new ArrayList<Egg>();
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for (JSONObject json : jsonEggs) {
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Egg egg = json.toJavaObject(Egg.class);
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env.eggs.add(egg);
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}
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System.out.println(
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"Loaded " + env.eggs.size() + " eggs from file '" + Application.CLASSPATH + "eggs.json" + "'.");
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} else {
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System.out.println("No eggs files ' " + Application.CLASSPATH + "eggs.json" + "' found, created "
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+ env.EGG_QTY + " new eggs to do test.");
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env.eggs = new ArrayList<Egg>();
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for (int i = 0; i < env.EGG_QTY; i++)
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env.eggs.add(Egg.createBrandNewEgg());
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}
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}
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}
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Yong Zhu
7 years ago
