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Merge pull request #281 from ankurkaushal/master

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Reformat according to google style guide
This commit is contained in:
Ilkka Seppälä
2015-11-02 21:39:17 +02:00
parent 7e4f04602e 306b1f3d31
commit fe63c9cec4
438 changed files with 8257 additions and 8382 deletions
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69
flyweight/src/main/java/com/iluwatar/flyweight/AlchemistShop.java
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@ -5,53 +5,52 @@ import java.util.List;
/**
*
* AlchemistShop holds potions on its shelves.
* It uses PotionFactory to provide the potions.
* AlchemistShop holds potions on its shelves. It uses PotionFactory to provide the potions.
*
*/
public class AlchemistShop {
private List<Potion> topShelf;
private List<Potion> bottomShelf;
private List<Potion> topShelf;
private List<Potion> bottomShelf;
public AlchemistShop() {
topShelf = new ArrayList<>();
bottomShelf = new ArrayList<>();
fillShelves();
}
public AlchemistShop() {
topShelf = new ArrayList<>();
bottomShelf = new ArrayList<>();
fillShelves();
}
private void fillShelves() {
private void fillShelves() {
PotionFactory factory = new PotionFactory();
PotionFactory factory = new PotionFactory();
topShelf.add(factory.createPotion(PotionType.INVISIBILITY));
topShelf.add(factory.createPotion(PotionType.INVISIBILITY));
topShelf.add(factory.createPotion(PotionType.STRENGTH));
topShelf.add(factory.createPotion(PotionType.HEALING));
topShelf.add(factory.createPotion(PotionType.INVISIBILITY));
topShelf.add(factory.createPotion(PotionType.STRENGTH));
topShelf.add(factory.createPotion(PotionType.HEALING));
topShelf.add(factory.createPotion(PotionType.HEALING));
topShelf.add(factory.createPotion(PotionType.INVISIBILITY));
topShelf.add(factory.createPotion(PotionType.INVISIBILITY));
topShelf.add(factory.createPotion(PotionType.STRENGTH));
topShelf.add(factory.createPotion(PotionType.HEALING));
topShelf.add(factory.createPotion(PotionType.INVISIBILITY));
topShelf.add(factory.createPotion(PotionType.STRENGTH));
topShelf.add(factory.createPotion(PotionType.HEALING));
topShelf.add(factory.createPotion(PotionType.HEALING));
bottomShelf.add(factory.createPotion(PotionType.POISON));
bottomShelf.add(factory.createPotion(PotionType.POISON));
bottomShelf.add(factory.createPotion(PotionType.POISON));
bottomShelf.add(factory.createPotion(PotionType.HOLY_WATER));
bottomShelf.add(factory.createPotion(PotionType.HOLY_WATER));
}
bottomShelf.add(factory.createPotion(PotionType.POISON));
bottomShelf.add(factory.createPotion(PotionType.POISON));
bottomShelf.add(factory.createPotion(PotionType.POISON));
bottomShelf.add(factory.createPotion(PotionType.HOLY_WATER));
bottomShelf.add(factory.createPotion(PotionType.HOLY_WATER));
}
public void enumerate() {
public void enumerate() {
System.out.println("Enumerating top shelf potions\n");
System.out.println("Enumerating top shelf potions\n");
for (Potion p : topShelf) {
p.drink();
}
for (Potion p : topShelf) {
p.drink();
}
System.out.println("\nEnumerating bottom shelf potions\n");
System.out.println("\nEnumerating bottom shelf potions\n");
for (Potion p : bottomShelf) {
p.drink();
}
}
for (Potion p : bottomShelf) {
p.drink();
}
}
}

33
flyweight/src/main/java/com/iluwatar/flyweight/App.java
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@ -2,26 +2,27 @@ package com.iluwatar.flyweight;
/**
*
* Flyweight pattern is useful when the program needs a huge amount of objects.
* It provides means to decrease resource usage by sharing object instances.
* Flyweight pattern is useful when the program needs a huge amount of objects. It provides means to
* decrease resource usage by sharing object instances.
* <p>
* In this example {@link AlchemistShop} has great amount of potions on its shelves.
* To fill the shelves {@link AlchemistShop} uses {@link PotionFactory} (which represents
* the Flyweight in this example). Internally {@link PotionFactory} holds a map
* of the potions and lazily creates new ones when requested.
* In this example {@link AlchemistShop} has great amount of potions on its shelves. To fill the
* shelves {@link AlchemistShop} uses {@link PotionFactory} (which represents the Flyweight in this
* example). Internally {@link PotionFactory} holds a map of the potions and lazily creates new ones
* when requested.
* <p>
* To enable safe sharing, between clients and threads, Flyweight objects must
* be immutable. Flyweight objects are by definition value objects.
* To enable safe sharing, between clients and threads, Flyweight objects must be immutable.
* Flyweight objects are by definition value objects.
*
*/
public class App {
/**
* Program entry point
* @param args command line args
*/
public static void main(String[] args) {
AlchemistShop alchemistShop = new AlchemistShop();
alchemistShop.enumerate();
}
/**
* Program entry point
*
* @param args command line args
*/
public static void main(String[] args) {
AlchemistShop alchemistShop = new AlchemistShop();
alchemistShop.enumerate();
}
}

10
flyweight/src/main/java/com/iluwatar/flyweight/HealingPotion.java
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@ -7,10 +7,8 @@ package com.iluwatar.flyweight;
*/
public class HealingPotion implements Potion {
@Override
public void drink() {
System.out.println("You feel healed. (Potion="
+ System.identityHashCode(this) + ")");
}
@Override
public void drink() {
System.out.println("You feel healed. (Potion=" + System.identityHashCode(this) + ")");
}
}

10
flyweight/src/main/java/com/iluwatar/flyweight/HolyWaterPotion.java
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@ -7,10 +7,8 @@ package com.iluwatar.flyweight;
*/
public class HolyWaterPotion implements Potion {
@Override
public void drink() {
System.out.println("You feel blessed. (Potion="
+ System.identityHashCode(this) + ")");
}
@Override
public void drink() {
System.out.println("You feel blessed. (Potion=" + System.identityHashCode(this) + ")");
}
}

10
flyweight/src/main/java/com/iluwatar/flyweight/InvisibilityPotion.java
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@ -7,10 +7,8 @@ package com.iluwatar.flyweight;
*/
public class InvisibilityPotion implements Potion {
@Override
public void drink() {
System.out.println("You become invisible. (Potion="
+ System.identityHashCode(this) + ")");
}
@Override
public void drink() {
System.out.println("You become invisible. (Potion=" + System.identityHashCode(this) + ")");
}
}

10
flyweight/src/main/java/com/iluwatar/flyweight/PoisonPotion.java
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@ -7,10 +7,8 @@ package com.iluwatar.flyweight;
*/
public class PoisonPotion implements Potion {
@Override
public void drink() {
System.out.println("Urgh! This is poisonous. (Potion="
+ System.identityHashCode(this) + ")");
}
@Override
public void drink() {
System.out.println("Urgh! This is poisonous. (Potion=" + System.identityHashCode(this) + ")");
}
}

2
flyweight/src/main/java/com/iluwatar/flyweight/Potion.java
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@ -7,5 +7,5 @@ package com.iluwatar.flyweight;
*/
public interface Potion {
void drink();
void drink();
}

75
flyweight/src/main/java/com/iluwatar/flyweight/PotionFactory.java
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@ -5,48 +5,47 @@ import java.util.Map;
/**
*
* PotionFactory is the Flyweight in this example.
* It minimizes memory use by sharing object instances.
* It holds a map of potion instances and new potions
* are created only when none of the type already exists.
* PotionFactory is the Flyweight in this example. It minimizes memory use by sharing object
* instances. It holds a map of potion instances and new potions are created only when none of the
* type already exists.
*
*/
public class PotionFactory {
private final Map<PotionType, Potion> potions;
private final Map<PotionType, Potion> potions;
public PotionFactory() {
potions = new EnumMap<>(PotionType.class);
}
public PotionFactory() {
potions = new EnumMap<>(PotionType.class);
}
Potion createPotion(PotionType type) {
Potion potion = potions.get(type);
if (potion == null) {
switch (type) {
case HEALING:
potion = new HealingPotion();
potions.put(type, potion);
break;
case HOLY_WATER:
potion = new HolyWaterPotion();
potions.put(type, potion);
break;
case INVISIBILITY:
potion = new InvisibilityPotion();
potions.put(type, potion);
break;
case POISON:
potion = new PoisonPotion();
potions.put(type, potion);
break;
case STRENGTH:
potion = new StrengthPotion();
potions.put(type, potion);
break;
default:
break;
}
}
return potion;
}
Potion createPotion(PotionType type) {
Potion potion = potions.get(type);
if (potion == null) {
switch (type) {
case HEALING:
potion = new HealingPotion();
potions.put(type, potion);
break;
case HOLY_WATER:
potion = new HolyWaterPotion();
potions.put(type, potion);
break;
case INVISIBILITY:
potion = new InvisibilityPotion();
potions.put(type, potion);
break;
case POISON:
potion = new PoisonPotion();
potions.put(type, potion);
break;
case STRENGTH:
potion = new StrengthPotion();
potions.put(type, potion);
break;
default:
break;
}
}
return potion;
}
}

2
flyweight/src/main/java/com/iluwatar/flyweight/PotionType.java
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@ -7,5 +7,5 @@ package com.iluwatar.flyweight;
*/
public enum PotionType {
HEALING, INVISIBILITY, STRENGTH, HOLY_WATER, POISON
HEALING, INVISIBILITY, STRENGTH, HOLY_WATER, POISON
}

9
flyweight/src/main/java/com/iluwatar/flyweight/StrengthPotion.java
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@ -7,9 +7,8 @@ package com.iluwatar.flyweight;
*/
public class StrengthPotion implements Potion {
@Override
public void drink() {
System.out.println("You feel strong. (Potion="
+ System.identityHashCode(this) + ")");
}
@Override
public void drink() {
System.out.println("You feel strong. (Potion=" + System.identityHashCode(this) + ")");
}
}

10
flyweight/src/test/java/com/iluwatar/flyweight/AppTest.java
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@ -11,9 +11,9 @@ import com.iluwatar.flyweight.App;
*/
public class AppTest {
@Test
public void test() {
String[] args = {};
App.main(args);
}
@Test
public void test() {
String[] args = {};
App.main(args);
}
}