|
41 | 41 | @Slf4j |
42 | 42 | publicclassApp { |
43 | 43 |
|
| 44 | +privatestaticfinalStringRED_DRAGON_EMERGES ="Red dragon emerges."; |
| 45 | +privatestaticfinalStringGREEN_DRAGON_SPOTTED ="Green dragon spotted ahead!"; |
| 46 | +privatestaticfinalStringBLACK_DRAGON_LANDS ="Black dragon lands before you."; |
| 47 | + |
44 | 48 | /** |
45 | 49 | * Program entry point. |
46 | 50 | * |
47 | 51 | * @param args command line args |
48 | 52 | */ |
49 | 53 | publicstaticvoidmain(String[]args) { |
50 | 54 | // GoF Strategy pattern |
51 | | -LOGGER.info("Green dragon spotted ahead!"); |
| 55 | +LOGGER.info(GREEN_DRAGON_SPOTTED); |
52 | 56 | vardragonSlayer =newDragonSlayer(newMeleeStrategy()); |
53 | 57 | dragonSlayer.goToBattle(); |
54 | | -LOGGER.info("Red dragon emerges."); |
| 58 | +LOGGER.info(RED_DRAGON_EMERGES); |
55 | 59 | dragonSlayer.changeStrategy(newProjectileStrategy()); |
56 | 60 | dragonSlayer.goToBattle(); |
57 | | -LOGGER.info("Black dragon lands before you."); |
| 61 | +LOGGER.info(BLACK_DRAGON_LANDS); |
58 | 62 | dragonSlayer.changeStrategy(newSpellStrategy()); |
59 | 63 | dragonSlayer.goToBattle(); |
60 | 64 |
|
61 | 65 | // Java 8 functional implementation Strategy pattern |
62 | | -LOGGER.info("Green dragon spotted ahead!"); |
| 66 | +LOGGER.info(GREEN_DRAGON_SPOTTED); |
63 | 67 | dragonSlayer =newDragonSlayer( |
64 | 68 | () ->LOGGER.info("With your Excalibur you severe the dragon's head!")); |
65 | 69 | dragonSlayer.goToBattle(); |
66 | | -LOGGER.info("Red dragon emerges."); |
| 70 | +LOGGER.info(RED_DRAGON_EMERGES); |
67 | 71 | dragonSlayer.changeStrategy(() ->LOGGER.info( |
68 | 72 | "You shoot the dragon with the magical crossbow and it falls dead on the ground!")); |
69 | 73 | dragonSlayer.goToBattle(); |
70 | | -LOGGER.info("Black dragon lands before you."); |
| 74 | +LOGGER.info(BLACK_DRAGON_LANDS); |
71 | 75 | dragonSlayer.changeStrategy(() ->LOGGER.info( |
72 | 76 | "You cast the spell of disintegration and the dragon vaporizes in a pile of dust!")); |
73 | 77 | dragonSlayer.goToBattle(); |
74 | 78 |
|
75 | 79 | // Java 8 lambda implementation with enum Strategy pattern |
76 | | -LOGGER.info("Green dragon spotted ahead!"); |
| 80 | +LOGGER.info(GREEN_DRAGON_SPOTTED); |
77 | 81 | dragonSlayer.changeStrategy(LambdaStrategy.Strategy.MeleeStrategy); |
78 | 82 | dragonSlayer.goToBattle(); |
79 | | -LOGGER.info("Red dragon emerges."); |
| 83 | +LOGGER.info(RED_DRAGON_EMERGES); |
80 | 84 | dragonSlayer.changeStrategy(LambdaStrategy.Strategy.ProjectileStrategy); |
81 | 85 | dragonSlayer.goToBattle(); |
82 | | -LOGGER.info("Black dragon lands before you."); |
| 86 | +LOGGER.info(BLACK_DRAGON_LANDS); |
83 | 87 | dragonSlayer.changeStrategy(LambdaStrategy.Strategy.SpellStrategy); |
84 | 88 | dragonSlayer.goToBattle(); |
85 | 89 | } |
|