From 34637f456c6084447a1b91bca41cbbe4c178310c Mon Sep 17 00:00:00 2001
From: Dmitry-Me <wipedout@yandex.ru>
Date: Tue, 20 Aug 2013 13:24:43 +0400
Subject: [PATCH] Loop implementation factored out into a separate class.

---
 .../impl/loop/LoopContext.java                | 40 +++++++++++++++++++
 ...terpriseGradeFizzBuzzSolutionStrategy.java | 16 ++------
 2 files changed, 44 insertions(+), 12 deletions(-)
 create mode 100644 src/main/java/com/seriouscompany/business/java/fizzbuzz/packagenamingpackage/impl/loop/LoopContext.java

diff --git a/src/main/java/com/seriouscompany/business/java/fizzbuzz/packagenamingpackage/impl/loop/LoopContext.java b/src/main/java/com/seriouscompany/business/java/fizzbuzz/packagenamingpackage/impl/loop/LoopContext.java
new file mode 100644
index 00000000..348ee827
--- /dev/null
+++ b/src/main/java/com/seriouscompany/business/java/fizzbuzz/packagenamingpackage/impl/loop/LoopContext.java
@@ -0,0 +1,40 @@
+package com.seriouscompany.business.java.fizzbuzz.packagenamingpackage.impl.loop;
+
+import com.seriouscompany.business.java.fizzbuzz.packagenamingpackage.impl.factories.LoopComponentFactory;
+
+public class LoopContext {
+
+	LoopInitializer myLoopInitializer;
+	LoopFinalizer myLoopFinalizer;
+	LoopCondition myLoopCondition;
+	LoopStep myLoopStep;
+	int myCurrentControlParameterValue;
+
+	public LoopContext(int nLoopControlParameterFinalValue) {
+		LoopComponentFactory myLoopComponentFactory = new LoopComponentFactory();
+		myLoopInitializer = myLoopComponentFactory.createLoopInitializer();
+		myLoopFinalizer = myLoopComponentFactory.createLoopFinalizer(nLoopControlParameterFinalValue);
+		myLoopCondition = myLoopComponentFactory.createLoopCondition();
+		myLoopStep = myLoopComponentFactory.createLoopStep();
+	}
+
+	public void start() {
+		myCurrentControlParameterValue =
+			myLoopInitializer.getLoopInitializationPoint();
+	}
+
+	public boolean shouldProceed() {
+		return myLoopCondition.evaluateLoop(myCurrentControlParameterValue,
+			myLoopFinalizer.getLoopFinalizationPoint());
+	}
+
+	public void proceed() {
+		myCurrentControlParameterValue =
+			myLoopStep.stepLoop(myCurrentControlParameterValue);
+	}
+
+	public int getControlParameter() {
+		return myCurrentControlParameterValue;
+	}
+
+}
diff --git a/src/main/java/com/seriouscompany/business/java/fizzbuzz/packagenamingpackage/impl/strategies/EnterpriseGradeFizzBuzzSolutionStrategy.java b/src/main/java/com/seriouscompany/business/java/fizzbuzz/packagenamingpackage/impl/strategies/EnterpriseGradeFizzBuzzSolutionStrategy.java
index 37693be9..e4d7cc9e 100644
--- a/src/main/java/com/seriouscompany/business/java/fizzbuzz/packagenamingpackage/impl/strategies/EnterpriseGradeFizzBuzzSolutionStrategy.java
+++ b/src/main/java/com/seriouscompany/business/java/fizzbuzz/packagenamingpackage/impl/strategies/EnterpriseGradeFizzBuzzSolutionStrategy.java
@@ -1,26 +1,18 @@
 package com.seriouscompany.business.java.fizzbuzz.packagenamingpackage.impl.strategies;
 
 import com.seriouscompany.business.java.fizzbuzz.packagenamingpackage.interfaces.strategies.FizzBuzzSolutionStrategy;
-import com.seriouscompany.business.java.fizzbuzz.packagenamingpackage.impl.factories.LoopComponentFactory;
-import com.seriouscompany.business.java.fizzbuzz.packagenamingpackage.impl.loop.LoopCondition;
-import com.seriouscompany.business.java.fizzbuzz.packagenamingpackage.impl.loop.LoopInitializer;
-import com.seriouscompany.business.java.fizzbuzz.packagenamingpackage.impl.loop.LoopStep;
+import com.seriouscompany.business.java.fizzbuzz.packagenamingpackage.impl.loop.LoopContext;
 
 public class EnterpriseGradeFizzBuzzSolutionStrategy implements FizzBuzzSolutionStrategy {
 
 	@Override
 	public void runSolution(int nFizzBuzzUpperLimit) {
-		LoopComponentFactory myLoopComponentFactory = new LoopComponentFactory();
-		LoopInitializer myLoopInitializer = myLoopComponentFactory.createLoopInitializer();
-		LoopFinalizer myLoopFinalizer = myLoopComponentFactory.createLoopFinalizer(nFizzBuzzUpperLimit);
-		LoopCondition myLoopCondition = myLoopComponentFactory.createLoopCondition();
-		LoopStep myLoopStep = myLoopComponentFactory.createLoopStep();
-
+		LoopContext loopContext = new LoopContext(nFizzBuzzUpperLimit);
 		SingleStepOutputGenerationStrategy myGenerationStrategy =
 			new SingleStepOutputGenerationStrategy();
 
-		for (int nCurrentNumber = myLoopInitializer.getLoopInitializationPoint(); myLoopCondition.evaluateLoop(nCurrentNumber, myLoopFinalizer.getLoopFinalizationPoint()); nCurrentNumber = myLoopStep.stepLoop(nCurrentNumber)) {
-			myGenerationStrategy.performGenerationForCurrentStep(nCurrentNumber);
+		for (loopContext.start(); loopContext.shouldProceed(); loopContext.proceed()) {
+			myGenerationStrategy.performGenerationForCurrentStep(loopContext.getControlParameter());
 		}
 	}
 }