WIP. Example of visitor pattern

Signed-off-by: cmoulliard <[email protected]>

src/main/java/dev/snowdrop/visitorpattern/Action.java

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+package dev.snowdrop.visitorpattern;
+
+import lombok.Getter;
+import lombok.Setter;
+
+import java.util.List;
+
+@Getter
+@Setter
+public class Action {
+    private String name;
+    private String description;
+    private List<Step> steps;
+
+    public Action(String name, String description) {
+        this.name = name;
+        this.description = description;
+    }
+}

src/main/java/dev/snowdrop/visitorpattern/Configurator.java

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+package dev.snowdrop.visitorpattern;
+
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class Configurator {
+    private String name;
+    private String provider;
+    private String resourceType;
+    private String description;
+    private Job job;
+}

src/main/java/dev/snowdrop/visitorpattern/Job.java

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+package dev.snowdrop.visitorpattern;
+
+import lombok.Getter;
+import lombok.Setter;
+
+import java.util.List;
+
+@Getter
+@Setter
+public class Job {
+    private List<Action> actions;
+
+    public Job() {}
+}

src/main/java/dev/snowdrop/visitorpattern/JobFactory.java

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+package dev.snowdrop.visitorpattern;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class JobFactory {
+    public static Visitable createResource(Configurator config) {
+        if (config.getResourceType().equalsIgnoreCase("PipelineRun")) {
+            return new PipelineRun(config);
+        } else if (config.getResourceType().equalsIgnoreCase("TaskRun")) {
+            // Convert Actions to Steps
+            List<Step> steps = config.getJob().getActions().stream()
+                .map(action -> new Step(action.getName()))
+                .collect(Collectors.toList());
+            return new TaskRun(config.getName(), steps);
+        }
+        throw new IllegalArgumentException("Unknown resource type: " + config.getResourceType());
+    }
+}

src/main/java/dev/snowdrop/visitorpattern/MainApp.java

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+package dev.snowdrop.visitorpattern;
+
+import java.util.Arrays;
+import java.util.List;
+
+public class MainApp {
+    public static void main(String[] args) {
+        // Create a sample Configurator
+        Job job = new Job();
+
+        List<Action> actions = Arrays.asList(
+            new Action("Action1", "Description1"),
+            new Action("Action2", "Description2")
+        );
+        job.setActions(actions);
+
+        Configurator configurator = new Configurator();
+        configurator.setName("Example Config");
+        configurator.setResourceType("PipelineRun"); // Or "TaskRun"
+        configurator.setJob(job);
+
+        // Create resource (PipelineRun or TaskRun)
+        Visitable resource = JobFactory.createResource(configurator);
+
+        // Process resource using visitor
+        ResourceVisitor visitor = new ResourceVisitor();
+        resource.accept(visitor);
+    }
+}

src/main/java/dev/snowdrop/visitorpattern/PipelineRun.java

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+package dev.snowdrop.visitorpattern;
+
+import lombok.Getter;
+import lombok.Setter;
+
+import java.util.List;
+
+@Getter
+@Setter
+public class PipelineRun implements Visitable {
+    private String name;
+    private List<Action> actions;
+
+    public PipelineRun(Configurator cfg) {
+        this.name = cfg.getName();
+        this.actions = cfg.getJob().getActions();
+    }
+
+    @Override
+    public void accept(Visitor visitor) {
+        visitor.visit(this);
+    }
+
+    // Other methods related to PipelineRun
+}

src/main/java/dev/snowdrop/visitorpattern/ResourceVisitor.java

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+package dev.snowdrop.visitorpattern;
+
+public class ResourceVisitor implements Visitor {
+
+    @Override
+    public void visit(PipelineRun pipelineRun) {
+        System.out.println("Processing PipelineRun: " + pipelineRun.getName());
+        // Logic to process PipelineRun
+    }
+
+    @Override
+    public void visit(TaskRun taskRun) {
+        System.out.println("Processing TaskRun: " + taskRun.getName());
+        // Logic to process TaskRun
+    }
+}

src/main/java/dev/snowdrop/visitorpattern/Step.java

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+package dev.snowdrop.visitorpattern;
+
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class Step {
+        private String name;
+
+    public Step(String name) {
+        this.name = name;
+    }
+}

src/main/java/dev/snowdrop/visitorpattern/TaskRun.java

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+package dev.snowdrop.visitorpattern;
+
+import lombok.Getter;
+import lombok.Setter;
+
+import java.util.Arrays;
+import java.util.List;
+
+@Getter
+@Setter
+public class TaskRun implements Visitable {
+    private String name;
+    private List<Step> steps;
+
+    public TaskRun(String name, List<Step> steps) {
+        this.name = name;
+        this.steps = steps;
+    }
+
+    @Override
+    public void accept(Visitor visitor) {
+        visitor.visit(this);
+    }
+
+    // Other methods related to TaskRun
+}
+

src/main/java/dev/snowdrop/visitorpattern/Visitable.java

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+package dev.snowdrop.visitorpattern;
+
+public interface Visitable {
+    void accept(Visitor visitor);
+}
+

src/main/java/dev/snowdrop/visitorpattern/Visitor.java

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+package dev.snowdrop.visitorpattern;
+
+public interface Visitor {
+    void visit(PipelineRun pipelineRun);
+    void visit(TaskRun taskRun);
+}
+