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#502 Replaced usages of System.out with logger.

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This commit is contained in:
daniel-bryla
2016-10-23 19:59:03 +02:00
parent 4ca205c03c
commit 0438811489
154 changed files with 1155 additions and 792 deletions
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13
decorator/src/main/java/com/iluwatar/decorator/App.java
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@ -22,6 +22,9 @@
*/
package com.iluwatar.decorator;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
*
* The Decorator pattern is a more flexible alternative to subclassing. The Decorator class
@ -36,6 +39,8 @@ package com.iluwatar.decorator;
*/
public class App {
private static final Logger LOGGER = LoggerFactory.getLogger(App.class);
/**
* Program entry point
*
@ -44,17 +49,17 @@ public class App {
public static void main(String[] args) {
// simple troll
System.out.println("A simple looking troll approaches.");
LOGGER.info("A simple looking troll approaches.");
Hostile troll = new Troll();
troll.attack();
troll.fleeBattle();
System.out.printf("Simple troll power %d.\n", troll.getAttackPower());
LOGGER.info("Simple troll power {}.\n", troll.getAttackPower());
// change the behavior of the simple troll by adding a decorator
System.out.println("\nA smart looking troll surprises you.");
LOGGER.info("A smart looking troll surprises you.");
Hostile smart = new SmartHostile(troll);
smart.attack();
smart.fleeBattle();
System.out.printf("Smart troll power %d.\n", smart.getAttackPower());
LOGGER.info("Smart troll power {}.\n", smart.getAttackPower());
}
}

9
decorator/src/main/java/com/iluwatar/decorator/SmartHostile.java
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@ -22,6 +22,9 @@
*/
package com.iluwatar.decorator;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* SmartHostile is a decorator for {@link Hostile} objects. The calls to the {@link Hostile} interface
* are intercepted and decorated. Finally the calls are delegated to the decorated {@link Hostile}
@ -30,6 +33,8 @@ package com.iluwatar.decorator;
*/
public class SmartHostile implements Hostile {
private static final Logger LOGGER = LoggerFactory.getLogger(SmartHostile.class);
private Hostile decorated;
public SmartHostile(Hostile decorated) {
@ -38,7 +43,7 @@ public class SmartHostile implements Hostile {
@Override
public void attack() {
System.out.println("It throws a rock at you!");
LOGGER.info("It throws a rock at you!");
decorated.attack();
}
@ -50,7 +55,7 @@ public class SmartHostile implements Hostile {
@Override
public void fleeBattle() {
System.out.println("It calls for help!");
LOGGER.info("It calls for help!");
decorated.fleeBattle();
}
}

9
decorator/src/main/java/com/iluwatar/decorator/Troll.java
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@ -22,6 +22,9 @@
*/
package com.iluwatar.decorator;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
*
* Troll implements {@link Hostile} interface directly.
@ -29,9 +32,11 @@ package com.iluwatar.decorator;
*/
public class Troll implements Hostile {
private static final Logger LOGGER = LoggerFactory.getLogger(Troll.class);
@Override
public void attack() {
System.out.println("The troll swings at you with a club!");
LOGGER.info("The troll swings at you with a club!");
}
@Override
@ -41,6 +46,6 @@ public class Troll implements Hostile {
@Override
public void fleeBattle() {
System.out.println("The troll shrieks in horror and runs away!");
LOGGER.info("The troll shrieks in horror and runs away!");
}
}