Reworked Requirements (WIP)
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package de.banananetwork.dsa.requirements;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.List;
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import java.util.function.Supplier;
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public abstract class Requirement {
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public abstract RequirementCheckResult checkOn(Character character);
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private static class SingleRequirement extends Requirement {
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}
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private static class CombinedRequirement extends Requirement {
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private final RequirementLink requirementLink;
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private final Requirement[] requirements;
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private CombinedRequirement(RequirementLink requirementLink, Requirement[] requirements) {
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this.requirementLink = requirementLink;
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this.requirements = requirements;
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}
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@Override
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public RequirementCheckResult checkOn(Character character) {
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return null;
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}
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}
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public static class Builder {
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private final List<Supplier<Requirement>> requirements = new ArrayList<>();
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private RequirementLink requirementLink;
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public Builder(RequirementLink requirementLink) {
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this.requirementLink = requirementLink;
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}
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Builder add(Supplier<Requirement> requirementSupplier) {
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this.requirements.add(requirementSupplier);
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return this;
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}
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public Builder add(Requirement requirement) {
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return this.add(() -> requirement);
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}
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public Builder add(Builder requirement) {
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return this.add(requirement::create);
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}
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private Builder addAll(Collection<Supplier<Requirement>> requirements) {
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this.requirements.addAll(requirements);
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return this;
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}
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public Builder addAll(Builder requirements) {
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return this.addAll(requirements.requirements);
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}
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private Requirement create() {
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switch (this.requirements.size()) {
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case 0:
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throw new IllegalStateException();
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case 1:
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return this.requirements.get(0).get();
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default:
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return new CombinedRequirement(this.requirementLink, this.requirements.stream().map(Supplier::get).toArray(Requirement[]::new));
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}
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}
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}
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}
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@ -1,6 +0,0 @@
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package de.banananetwork.dsa.requirements
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class Requirement {
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}
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package de.banananetwork.dsa.requirements;
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public abstract class RequirementCheckResult {
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private final Requirement requirement;
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private RequirementCheckResult(Requirement requirement) {
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this.requirement = requirement;
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}
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public Requirement getRequirement() {
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return requirement;
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}
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public enum State {
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ACCEPTED(0), WARNING(1), ERROR(2);
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private final int priority;
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State(int priority) {
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this.priority = priority;
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}
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public State combine(State state) {
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return state.priority > this.priority ? state : this;
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}
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}
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private static class SingleResult extends RequirementCheckResult {
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}
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private static class CombinedResult extends RequirementCheckResult {
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RequirementCheckResult[] results;
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}
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}
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@ -0,0 +1,5 @@
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package de.banananetwork.dsa.requirements;
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public enum RequirementLink {
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AND, OR
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}
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@ -1,11 +0,0 @@
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package de.banananetwork.dsa.requirements;
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public class RequirementSet {
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private final Requirement[] requirements;
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public RequirementSet(Requirement[] requirements) {
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this.requirements = requirements;
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}
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}
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