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package jsf2.demo.scrum.web.controller;
import jsf2.demo.scrum.model.entities.Project;
import jsf2.demo.scrum.model.entities.Sprint;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.faces.application.FacesMessage;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ManagedProperty;
import javax.faces.bean.SessionScoped;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.model.DataModel;
import javax.faces.model.ListDataModel;
import javax.faces.validator.ValidatorException;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import java.io.Serializable;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* @author Dr. Spock (spock at dev.java.net)
*/
@ManagedBean(name = "sprintManager")
@SessionScoped
public class SprintManager extends AbstractManager implements Serializable {
private static final long serialVersionUID = 1L;
private Sprint currentSprint;
private DataModel<Sprint> sprints;
private List<Sprint> sprintList;
@ManagedProperty("#{projectManager}")
private ProjectManager projectManager;
private Project currentProject;
@PostConstruct
public void construct() {
init();
}
@PreDestroy
public void destroy() {
sprints = null;
if (null != sprintList) {
sprintList.clear();
sprintList = null;
}
projectManager = null;
currentProject = null;
FacesContext.getCurrentInstance().getExternalContext().getSessionMap().remove("sprintManager");
}
public void init() {
Sprint sprint = new Sprint();
Project pmCurrentProject = getProjectManager().getCurrentProject();
sprint.setProject(pmCurrentProject);
setCurrentSprint(sprint);
if (pmCurrentProject != null) {
sprintList = new LinkedList<Sprint>(pmCurrentProject.getSprints());
} else {
sprintList = Collections.emptyList();
}
sprints = new ListDataModel<Sprint>(sprintList);
}
public String create() {
Sprint sprint = new Sprint();
sprint.setProject(getProjectManager().getCurrentProject());
setCurrentSprint(sprint);
return "create";
}
public String save() {
if (currentSprint != null) {
try {
Sprint merged = doInTransaction(new PersistenceAction<Sprint>() {
public Sprint execute(EntityManager em) {
if (currentSprint.isNew()) {
em.persist(currentSprint);
} else if (!em.contains(currentSprint)) {
return em.merge(currentSprint);
}
return currentSprint;
}
});
if (!currentSprint.equals(merged)) {
setCurrentSprint(merged);
int idx = sprintList.indexOf(currentSprint);
if (idx != -1) {
sprintList.set(idx, merged);
}
}
getProjectManager().getCurrentProject().addSprint(merged);
if (!sprintList.contains(merged)) {
sprintList.add(merged);
}
} catch (Exception e) {
getLogger(getClass()).log(Level.SEVERE, "Error on try to save Sprint: " + currentSprint, e);
addMessage("Error on try to save Sprint", FacesMessage.SEVERITY_ERROR);
return null;
}
}
return "show";
}
public String edit() {
setCurrentSprint(sprints.getRowData());
return "edit";
}
public String remove() {
final Sprint sprint = sprints.getRowData();
if (sprint != null) {
try {
doInTransaction(new PersistenceActionWithoutResult() {
public void execute(EntityManager em) {
if (em.contains(sprint)) {
em.remove(sprint);
} else {
em.remove(em.merge(sprint));
}
}
});
getProjectManager().getCurrentProject().removeSpring(sprint);
sprintList.remove(sprint);
} catch (Exception e) {
getLogger(getClass()).log(Level.SEVERE, "Error on try to remove Sprint: " + currentSprint, e);
addMessage("Error on try to remove Sprint", FacesMessage.SEVERITY_ERROR);
return null;
}
}
return "show";
}
/*
* This method can be pointed to by a validator methodExpression, such as:
*
* <h:inputText id="itName" value="#{sprintManager.currentSprint.name}" required="true"
* requiredMessage="#{i18n['sprint.form.label.name.required']}" maxLength="30" size="30"
* validator="#{sprintManager.checkUniqueSprintName}" />
*/
public void checkUniqueSprintNameFacesValidatorMethod(FacesContext context, UIComponent component, Object newValue) {
final String newName = (String) newValue;
String message = checkUniqueSprintNameApplicationValidatorMethod(newName);
if (null != message) {
throw new ValidatorException(getFacesMessageForKey("sprint.form.label.name.unique"));
}
}
/*
* This method is called by the JSR-303 SprintNameUniquenessConstraintValidator.
* If it returns non-null, the result must be interpreted as the localized
* validation message.
*
*/
public String checkUniqueSprintNameApplicationValidatorMethod(String newValue) {
String message = null;
final String newName = newValue;
try {
Long count = doInTransaction(new PersistenceAction<Long>() {
public Long execute(EntityManager em) {
Query query = em.createNamedQuery((currentSprint.isNew()) ? "sprint.new.countByNameAndProject" : "sprint.countByNameAndProject");
query.setParameter("name", newName);
query.setParameter("project", getProjectManager().getCurrentProject());
if (!currentSprint.isNew()) {
query.setParameter("currentSprint", currentSprint);
}
return (Long) query.getSingleResult();
}
});
if (count != null && count > 0) {
message = getFacesMessageForKey("sprint.form.label.name.unique").getSummary();
}
} catch (ManagerException ex) {
Logger.getLogger(SprintManager.class.getName()).log(Level.SEVERE, null, ex);
}
return message;
}
public String cancelEdit() {
return "show";
}
public String showStories() {
setCurrentSprint(sprints.getRowData());
return "showStories";
}
public String showDashboard() {
setCurrentSprint(sprints.getRowData());
return "showDashboard";
}
public Sprint getCurrentSprint() {
return currentSprint;
}
public void setCurrentSprint(Sprint currentSprint) {
this.currentSprint = currentSprint;
}
public DataModel<Sprint> getSprints() {
this.sprints = new ListDataModel<Sprint>(projectManager.getCurrentProject().getSprints());
return this.sprints;
}
public void setSprints(DataModel<Sprint> sprints) {
this.sprints = sprints;
}
public ProjectManager getProjectManager() {
return projectManager;
}
public void setProjectManager(ProjectManager projectManager) {
this.projectManager = projectManager;
}
public Project getProject() {
Project pmCurrentProject = projectManager.getCurrentProject();
// Verify if the currentProject is out of date
// If there is a new CurrentProject we need to update sprintList and set currentSprint to null and tell user he/she needs to select a Sprint
if (pmCurrentProject != currentProject) {
this.setCurrentSprint(null);
this.sprintList = pmCurrentProject.getSprints();
this.sprints = new ListDataModel<Sprint>(sprintList);
this.currentProject = pmCurrentProject;
}
return currentProject;
}
public void setProject(Project project) {
projectManager.setCurrentProject(project);
}
}