DirectoryScannerUitvoerActionBean.java

/*
 * Copyright (C) 2015 B3Partners B.V.
 */
package nl.b3p.brmo.service.stripes;

import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.Date;
import net.sourceforge.stripes.action.ActionBean;
import net.sourceforge.stripes.action.ActionBeanContext;
import net.sourceforge.stripes.action.After;
import net.sourceforge.stripes.action.Before;
import net.sourceforge.stripes.action.DefaultHandler;
import net.sourceforge.stripes.action.ForwardResolution;
import net.sourceforge.stripes.action.Resolution;
import net.sourceforge.stripes.action.SimpleMessage;
import net.sourceforge.stripes.action.StrictBinding;
import net.sourceforge.stripes.validation.Validate;
import nl.b3p.brmo.persistence.staging.AutomatischProces;
import nl.b3p.brmo.service.scanner.AbstractExecutableProces;
import nl.b3p.brmo.service.scanner.ProcesExecutable;
import nl.b3p.brmo.service.scanner.ProgressUpdateListener;
import org.stripesstuff.plugin.waitpage.WaitPage;
import org.stripesstuff.stripersist.EntityTypeConverter;
import org.stripesstuff.stripersist.Stripersist;

/**
 * @author mprins
 */
@StrictBinding
public class DirectoryScannerUitvoerActionBean implements ActionBean, ProgressUpdateListener {

  private static final String JSP = "/WEB-INF/jsp/beheer/dirscanuitvoeren.jsp";

  @Validate(converter = EntityTypeConverter.class)
  private AutomatischProces proces;

  private ActionBeanContext context;

  private double progress;

  private long total;

  private long processed;

  private boolean complete;

  private String status;

  private String label;

  private StringBuilder log = new StringBuilder();
  private int logLineCounter = 0;

  private Date start;

  private Date update;

  private String exceptionStacktrace;

  @DefaultHandler
  @WaitPage(path = JSP, delay = 1000, refresh = 1000)
  public Resolution execute() {
    if (proces == null) {
      getContext().getMessages().add(new SimpleMessage("Proces ongeldig!"));
      completed();
      return new ForwardResolution(JSP);
    }
    // opnieuw laden van config omdat de waitpage de entity detached
    proces = Stripersist.getEntityManager().find(AutomatischProces.class, proces.getId());
    ProcesExecutable exeProces = AbstractExecutableProces.getProces(proces);
    try {
      exeProces.execute(this);
      this.proces.setStatus(AutomatischProces.ProcessingStatus.WAITING);
    } catch (Exception e) {
      this.proces.setStatus(AutomatischProces.ProcessingStatus.ERROR);
      Stripersist.getEntityManager().merge(this.proces);
      exception(e);
    } finally {
      completed();
      if (Stripersist.getEntityManager().getTransaction().isActive()) {
        Stripersist.getEntityManager().getTransaction().commit();
      }
    }

    return new ForwardResolution(JSP);
  }

  @Before
  public void before() {
    start = new Date();
  }

  @After
  public void completed() {
    complete = true;
    proces.setLastrun(this.update);
  }

  @Override
  public void total(long total) {
    this.total = total;
  }

  @Override
  public void progress(long progress) {
    this.processed = progress;
    if (this.total != 0) {
      this.progress = (100.0 / this.total) * this.processed;
    }
    this.update = new Date();
  }

  @Override
  public void exception(Throwable t) {
    StringWriter sw = new StringWriter();
    t.printStackTrace(new PrintWriter(sw));
    this.exceptionStacktrace = sw.toString();
  }

  @Override
  public void updateStatus(String status) {
    this.status = status;
  }

  @Override
  public void addLog(String line) {
    if (this.logLineCounter > 1000) {
      // trim buffer
      int i900regels = 100;
      this.log.delete(0, i900regels);
      this.log.trimToSize();
    }
    this.log.append(line).append("\n");
    this.logLineCounter++;
  }

  @Override
  public ActionBeanContext getContext() {
    return context;
  }

  @Override
  public void setContext(ActionBeanContext context) {
    this.context = context;
  }

  public AutomatischProces getProces() {
    return proces;
  }

  public void setProces(AutomatischProces proces) {
    this.proces = proces;
  }

  public double getProgress() {
    return progress;
  }

  public void setProgress(double progress) {
    this.progress = progress;
  }

  public long getTotal() {
    return total;
  }

  public void setTotal(long total) {
    this.total = total;
  }

  public long getProcessed() {
    return processed;
  }

  public void setProcessed(long processed) {
    this.processed = processed;
  }

  public boolean isComplete() {
    return complete;
  }

  public void setComplete(boolean complete) {
    this.complete = complete;
  }

  public String getStatus() {
    return status;
  }

  public void setStatus(String status) {
    this.status = status;
  }

  public String getLabel() {
    return label;
  }

  public void setLabel(String label) {
    this.label = label;
  }

  public String getLog() {
    return log.toString();
  }

  public void setLog(String log) {
    this.log = new StringBuilder(log);
  }

  public Date getStart() {
    return start;
  }

  public void setStart(Date start) {
    this.start = start;
  }

  public Date getUpdate() {
    return update;
  }

  public void setUpdate(Date update) {
    this.update = update;
  }

  public String getExceptionStacktrace() {
    return exceptionStacktrace;
  }

  public void setExceptionStacktrace(String exceptionStacktrace) {
    this.exceptionStacktrace = exceptionStacktrace;
  }
}