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A micro-framework to allow easily passing specific Vert.x messages to specific addresses for processing of those messages.

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package co.spraybot.messagerunner.builders;

import co.spraybot.messagerunner.ReportSummary;

import javax.annotation.Nullable;
import java.time.Duration;
import java.time.LocalDateTime;

public class ReportSummaryBuilder {

    private LocalDateTime startedAt;
    private LocalDateTime endedAt;
    private Integer itemCount;
    private Throwable failedCause;

    public ReportSummaryBuilder startedAt(LocalDateTime dateTime) {
        startedAt = dateTime;
        return this;
    }

    public ReportSummaryBuilder itemCount(int itemCount) {
        this.itemCount = itemCount;
        return this;
    }

    public ReportSummaryBuilder reportFailed(Throwable throwable) {
        failedCause = throwable;
        return this;
    }

    public ReportSummaryBuilder endedAt(LocalDateTime dateTime) {
        endedAt = dateTime;
        return this;
    }

    public ReportSummary build() {
        ReportSummary summary = new ReportSummary() {
            private LocalDateTime reportDate;
            private Integer itemCount;
            private Duration executionTime;
            private Throwable cause;

            private ReportSummary init(LocalDateTime reportDate, Duration executionTime, Integer itemCount, Throwable cause) {
                this.reportDate = reportDate;
                this.executionTime = executionTime;
                this.itemCount = itemCount;
                this.cause = cause;
                return this;
            }

            @Override
            public LocalDateTime getReportDate() {
                return reportDate;
            }

            @Override
            public int getItemCount() {
                return itemCount;
            }

            @Override
            public Duration getExecutionTime() {
                return executionTime;
            }

            @Override
            public boolean isSucceeded() {
                return cause == null;
            }

            @Override
            public boolean isFailed() {
                return cause != null;
            }

            @Nullable
            @Override
            public Throwable getCause() {
                return cause;
            }
        }.init(startedAt, Duration.between(startedAt, endedAt), itemCount, failedCause);

        startedAt = null;
        endedAt = null;
        itemCount = null;
        failedCause = null;

        return summary;
    }


}