DossierVersion.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2011 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.turro.dossier.entity;
 
import java.util.Date;
import java.util.List;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.ManyToOne;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
import org.turro.string.Strings;
import org.turro.dossier.db.DossierPU;
import org.turro.elephant.util.DateFormats;
import org.turro.jpa.entity.IDaoEntity;
import org.turro.util.Chars;
import org.turro.version.Version;
 
@Entity
public class DossierVersion implements java.io.Serializable, IDaoEntity, Comparable<DossierVersion> {
  
  @Id
  @GeneratedValue(strategy= GenerationType.IDENTITY)
  @Column(name="IDENTIFIER")
  private Long id;
  
  private String versionId;
  
  @ManyToOne
  private Dossier dossier;
  
  @Temporal(TemporalType.DATE)
  private Date releaseDate;
  
  private boolean active;
 
  public boolean isActive() {
    return active;
  }
 
  public void setActive(boolean active) {
    this.active = active;
  }
 
  public Dossier getDossier() {
    return dossier;
  }
 
  public void setDossier(Dossier dossier) {
    this.dossier = dossier;
  }
 
  public Long getId() {
    return id;
  }
 
  public void setId(Long id) {
    this.id = id;
  }
 
  public Date getReleaseDate() {
    return releaseDate;
  }
 
  public void setReleaseDate(Date releaseDate) {
    this.releaseDate = releaseDate;
  }
 
  public String getVersionId() {
    return versionId;
  }
 
  public void setVersionId(String versionId) {
    this.versionId = versionId;
  }
 
  /* IDaoEntity */
  
  @Override
  public Object entityId() {
    return id;
  }
 
  @Override
  public boolean isEmpty() {
    return Strings.isBlank(versionId) ||
            releaseDate == null;
  }
  
  /* Helpers */
  
  public String getVersionString() {
    return "[" + versionId + Chars.forward().spaced().toString() + DateFormats.format(releaseDate, true) + "]";
  }
  
  private transient Long issueCount;
  private transient DossierVersionStatus currentStatus;
  
  public long getIssues() {
    if(issueCount == null) {
      issueCount = (Long) new DossierPU().getSingleResult(
              "select count(issue) from Issue issue " +
              "where issue.version = ?",
              new Object[] { this }
              );
    }
    return issueCount;
  }
  
  public DossierVersionStatus getStatus() {
    if(currentStatus == null) {
      long stoppers = (Long) new DossierPU().getSingleResult(
              "select count(issue) from Issue issue " +
              "where issue.version = ? " +
              "and issue.status <> ? " +
              "and issue.priority = ?",
              new Object[] { this, IssueStatus.STATUS_CLOSED, IssuePriority.PRIORITY_CANT_CONTINUE }
              );
      if(stoppers > 0) {
        currentStatus = DossierVersionStatus.VERSION_STOPPED;              
      } else {
        long problematic = (Long) new DossierPU().getSingleResult(
                "select count(issue) from Issue issue " +
                "where issue.version = ? " +
                "and issue.status <> ? " +
                "and issue.priority = ?",
                new Object[] { this, IssueStatus.STATUS_CLOSED, IssuePriority.PRIORITY_WORKAROUND_IMPRACTICAL }
                );
        if(problematic > 0) {
          currentStatus = DossierVersionStatus.VERSION_NOTRECOMMENDED;              
        } else {
          long onWork = (Long) new DossierPU().getSingleResult(
                  "select count(issue) from Issue issue " +
                  "where issue.version = ? " +
                  "and issue.status <> ?",
                  new Object[] { this, IssueStatus.STATUS_CLOSED }
                  );
          if(onWork > 0) {
            currentStatus = DossierVersionStatus.VERSION_ONWORK;              
          } else {
            currentStatus = DossierVersionStatus.VERSION_READY;
          }
        }
      }        
    }
    return currentStatus;
  }
 
  public List<String> getByStatus(DossierVersionStatus status) {
    if(DossierVersionStatus.VERSION_STOPPED.equals(status)) {
      return new DossierPU().getResultList(
              "select concat('/issue/', id) from Issue issue " +
              "where issue.version = ? " +
              "and issue.status <> ? " +
              "and issue.priority = ?",
              new Object[] { this, IssueStatus.STATUS_CLOSED, IssuePriority.PRIORITY_CANT_CONTINUE }
              );
    } else if(DossierVersionStatus.VERSION_NOTRECOMMENDED.equals(status)) {
      return new DossierPU().getResultList(
              "select concat('/issue/', id) from Issue issue " +
              "where issue.version = ? " +
              "and issue.status <> ? " +
              "and issue.priority = ?",
              new Object[] { this, IssueStatus.STATUS_CLOSED, IssuePriority.PRIORITY_WORKAROUND_IMPRACTICAL }
              );
    }
    return null;
  }
  
  @Override
  public int compareTo(DossierVersion o) {
    return new Version(versionId).compareTo(new Version(o != null ? o.versionId : null));
  }
  
}