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Implementing the Template Method Pattern with Java - BAEL-1289 (#3065)

Browse Source 
* Initial Commit

* Added Domain Classes

* Update HighEndComputer.java

* Update StandardComputer.java

* Update TemplateMethodPatternTest.java
This commit is contained in:
Alejandro Gervasio 2017-11-16 17:28:55 -03:00 committed by adamd1985
parent 656e89f089
commit bdbee879af
8 changed files with 33 additions and 82 deletions
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4
patterns/template-method/src/main/java/com/baeldung/templatemethodpattern/application/Application.java
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@ -1,11 +1,11 @@
package com.baeldung.templatemethodpattern.application;
import com.baeldung.templatemethodpattern.model.Computer;
import com.baeldung.templatemethodpattern.model.StandardComputer;
import com.baeldung.templatemethodpattern.model.HighEndComputer;
import com.baeldung.templatemethodpattern.model.ComputerBuilder;
import com.baeldung.templatemethodpattern.model.HighEndComputerBuilder;
import com.baeldung.templatemethodpattern.model.StandardComputerBuilder;
import com.baeldung.templatemethodpattern.model.HighEndComputer;
import com.baeldung.templatemethodpattern.model.StandardComputer;
public class Application {

26
patterns/template-method/src/main/java/com/baeldung/templatemethodpattern/model/Computer.java
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@ -5,33 +5,15 @@ import java.util.Map;
import java.util.ArrayList;
import java.util.List;
public abstract class ComputerBuilder {
public class Computer {
protected Map<String, String> computerParts = new HashMap<>();
protected List<String> moterboardSetupStatus = new ArrayList<>();
private Map<String, String> computerParts = new HashMap<>();
public final Computer buildComputer() {
addMotherboard();
setupMotherboard();
addProcessor();
return getComputer();
public Computer(Map<String, String> computerParts) {
this.computerParts = computerParts;
}
public abstract void addMotherboard();
public abstract void setupMotherboard();
public abstract void addProcessor();
public List<String> getMotherboardSetupStatus() {
return moterboardSetupStatus;
}
public Map<String, String> getComputerParts() {
return computerParts;
}
private Computer getComputer() {
return new Computer(computerParts);
}
}

10
patterns/template-method/src/main/java/com/baeldung/templatemethodpattern/model/ComputerBuilder.java
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@ -8,7 +8,7 @@ import java.util.Map;
public abstract class ComputerBuilder {
protected Map<String, String> computerParts = new HashMap<>();
protected List<String> moterboardSetupStatus = new ArrayList<>();
protected List<String> motherboardSetupStatus = new ArrayList<>();
public final Computer buildComputer() {
addMotherboard();
@ -22,11 +22,11 @@ public abstract class ComputerBuilder {
public abstract void setupMotherboard();
public abstract void addProcessor();
public List<String> getMotherboardSetupStatus() {
return moterboardSetupStatus;
}
public List<String> getMotherboardSetupStatus() {
return motherboardSetupStatus;
}
public Map<String, String> getComputerParts() {
return computerParts;
}

26
patterns/template-method/src/main/java/com/baeldung/templatemethodpattern/model/HighEndComputer.java
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@ -1,26 +1,10 @@
package com.baeldung.templatemethodpattern.model;
public class HighEndComputer extends Computer {
import java.util.Map;
@Override
public void addMotherboard() {
computerParts.put("Motherboard", "High-end Motherboard");
}
public class HighEndComputer extends Computer {
@Override
public void setupMotherboard() {
moterboardSetupStatus.add("Screwing the high-end motherboard to the case.");
moterboardSetupStatus.add("Pluging in the power supply connectors.");
moterboardSetupStatus.forEach(step -> System.out.println(step));
}
@Override
public void addProcessor() {
computerParts.put("Processor", "High-end Processor");
}
@Override
public void addMotherboard() {
computerParts.put("Motherboard", "High End Motherboard");
}
public HighEndComputer(Map<String, String> computerParts) {
super(computerParts);
}
}

8
patterns/template-method/src/main/java/com/baeldung/templatemethodpattern/model/HighEndComputerBuilder.java
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@ -9,13 +9,13 @@ public class HighEndComputerBuilder extends ComputerBuilder {
@Override
public void setupMotherboard() {
moterboardSetupStatus.add("Screwing the high-end motherboard to the case.");
moterboardSetupStatus.add("Pluging in the power supply connectors.");
moterboardSetupStatus.forEach(step -> System.out.println(step));
motherboardSetupStatus.add("Screwing the high-end motherboard to the case.");
motherboardSetupStatus.add("Pluging in the power supply connectors.");
motherboardSetupStatus.forEach(step -> System.out.println(step));
}
@Override
public void addProcessor() {
computerParts.put("Processor", "High-end Processor");
computerParts.put("Processor", "High-end Processor");
}
}

27
patterns/template-method/src/main/java/com/baeldung/templatemethodpattern/model/StandardComputer.java
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@ -1,25 +1,10 @@
package com.baeldung.templatemethodpattern.model;
import java.util.Map;
public class StandardComputer extends Computer {
public void addMotherboard() {
computerParts.put("Motherboard", "Standard Motherboard");
}
@Override
public void setupMotherboard() {
moterboardSetupStatus.add("Screwing the standard motherboard to the case.");
moterboardSetupStatus.add("Pluging in the power supply connectors.");
moterboardSetupStatus.forEach(step -> System.out.println(step));
}
@Override
public void addProcessor() {
computerParts.put("Processor", "Standard Processor");
}
@Override
public void addMotherboard() {
computerParts.put("Motherboard", "Standard Motherboard");
}
public StandardComputer(Map<String, String> computerParts) {
super(computerParts);
}
}

6
patterns/template-method/src/main/java/com/baeldung/templatemethodpattern/model/StandardComputerBuilder.java
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@ -9,9 +9,9 @@ public class StandardComputerBuilder extends ComputerBuilder {
@Override
public void setupMotherboard() {
moterboardSetupStatus.add("Screwing the standard motherboard to the case.");
moterboardSetupStatus.add("Pluging in the power supply connectors.");
moterboardSetupStatus.forEach(step -> System.out.println(step));
motherboardSetupStatus.add("Screwing the standard motherboard to the case.");
motherboardSetupStatus.add("Pluging in the power supply connectors.");
motherboardSetupStatus.forEach(step -> System.out.println(step));
}
@Override

8
patterns/template-method/src/test/java/com/baeldung/templatemethodpatterntest/TemplateMethodPatternTest.java
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@ -29,12 +29,12 @@ public class TemplateMethodPatternTest {
@Test
public void givenStandardMotherBoard_whenAddingMotherBoard_thenEqualAssertion() {
standardComputer.addMotherboard();
assertEquals("Standard Motherboard", standardComputer.getComputerParts().get("Motherboard"));
standardComputerBuilder.addMotherboard();
assertEquals("Standard Motherboard", standardComputerBuilder.getComputerParts().get("Motherboard"));
}
@Test
public void givenStandardMotheroboard_whenSetup_thenTwoEqualAssertions() {
public void givenStandardMotherboard_whenSetup_thenTwoEqualAssertions() {
standardComputerBuilder.setupMotherboard();
assertEquals("Screwing the standard motherboard to the case.", standardComputerBuilder.getMotherboardSetupStatus().get(0));
assertEquals("Pluging in the power supply connectors.", standardComputerBuilder.getMotherboardSetupStatus().get(1));
@ -77,7 +77,7 @@ public class TemplateMethodPatternTest {
}
@Test
public void givenAllHighEndParts_whenBuildingComputer_thenTwoParts() {
public void givenAllHighEnddParts_whenBuildingComputer_thenTwoParts() {
highEndComputerBuilder.buildComputer();
assertEquals(2, highEndComputerBuilder.getComputerParts().size());
}