QuestionCtrl.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2015 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.www;
 
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Date;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.turro.string.Strings;
import org.apache.commons.fileupload.FileItemIterator;
import org.apache.commons.fileupload.FileItemStream;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.fileupload.util.Streams;
import org.turro.attach.db.AttachPU;
import org.turro.attach.entity.AttachContent;
import org.turro.attach.entity.Attachment;
import org.turro.attach.www.AttachCtrl;
import org.turro.auth.Authentication;
import org.turro.callback.ChangedValue;
import org.turro.contacts.Contact;
import org.turro.describeit.DescribeItUtil;
import org.turro.dossier.db.DossierPU;
import org.turro.dossier.entity.Dossier;
import org.turro.dossier.entity.Issue;
import org.turro.dossier.entity.IssueComment;
import org.turro.dossier.entity.IssueType;
import org.turro.dossier.issue.IssueWrapper;
import org.turro.elephant.context.Application;
import org.turro.elephant.context.ElephantContext;
import org.turro.elephant.context.IConstructor;
import org.turro.elephant.direct.DirectContent;
import org.turro.elephant.direct.DirectContents;
import org.turro.elephant.direct.IDirectContent;
import org.turro.html.HtmlContent;
import org.turro.jpa.Dao;
import org.turro.log.SystemLogType;
import org.turro.log.SystemLogger;
import org.turro.marker.ElephantMarker;
import org.turro.plugin.contacts.IContact;
import org.turro.tags.TagCloud;
import org.turro.tags.Tags;
 
@DirectContent(identifier="issue-question")
public class QuestionCtrl implements IDirectContent {
 
  public static String editQuestion(String issueId, String link, IssueType type, String template) {
    Long id = Long.valueOf(issueId);
    Issue issue = new DossierPU().find(Issue.class, id);
    return editQuestion(issue, link, type, template);
  }
 
  public static String editQuestion(Issue issue, String link, IssueType type, String template) {
    IConstructor constructor = Application.getApplication().getConstructor();
    if(issue == null) {
      ElephantMarker marker = new ElephantMarker(constructor);
      marker.put("action", DirectContents.createRelativeURL(getIdentifier()));
      marker.put("redirect", link);
      marker.put("type", type == null ? IssueType.TYPE_QUESTION.toString() : type.toString());
      return marker.parse("issue", Strings.isBlank(template) ? "editQuestion" : template);
    } else {
      IssueWrapper wrapper = new IssueWrapper(issue);
      if(wrapper.isFullParticipant()) {
        String issuePath = DossierPU.getObjectPath(issue);
        ElephantMarker marker = new ElephantMarker(constructor);
        marker.put("action", DirectContents.createRelativeURL(getIdentifier()));
        marker.put("redirect", link);
        marker.put("issue", issue);
        marker.put("webDefault", DescribeItUtil.description(DescribeItUtil.DEFAULT_ID, issuePath));
        marker.put("tagsString", Tags.tagsString(issuePath));
        marker.put("tagChoices", Tags.tagChoices(issuePath));
        //marker.put("type", type == null ? IssueType.TYPE_QUESTION.toString() : type.toString());
        AttachCtrl ac = new AttachCtrl(constructor);
        ac.setEntityPath(issuePath);
        ac.setPublicOnly(false);
        marker.put("ac", ac.parseAttachments());
        return marker.parse("issue", Strings.isBlank(template) ? "editQuestion" : template);
      }
    }
    return "";
  }
 
  public static String getIdentifier() {
    return QuestionCtrl.class.getAnnotation(DirectContent.class).identifier();
  }
 
  @Override
  public boolean itsMe(String id) {
    return getIdentifier().equals(id);
  }
 
  @Override
  public boolean myTurn(HttpServletRequest request) {
    return DirectContents.isYourTurn(request, getIdentifier());
  }
 
  @Override
  public void execute(ServletContext context, HttpServletRequest request, HttpServletResponse response) {
    if(ServletFileUpload.isMultipartContent(request)) {
      try {
        processInformation(request, response);
      } catch (FileUploadException | IOException ex) {
        Logger.getLogger(QuestionCtrl.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
      }
    }
  }
 
  private String description;
  private Issue issue = null;
  
  private void processInformation(HttpServletRequest request, HttpServletResponse response) throws FileUploadException, IOException {
    IConstructor constructor = Application.getApplication().getConstructor();
    Dao dao = new DossierPU();
    IContact contact = Authentication.getIContact();
    if(contact == null || !contact.isValid()) {
      return;
    }
    Long dossierId = null, issueId = null;
    String redirect = null, comment = null, webDefault = null, tags = null;
    ServletFileUpload upload = new ServletFileUpload();
    upload.setHeaderEncoding(ElephantContext.getEncoding());
    FileItemIterator iter = upload.getItemIterator(request);
    while(iter.hasNext()) {
      FileItemStream item = iter.next();
      String name = item.getFieldName();
      InputStream stream = item.openStream();
      if(item.isFormField()) {
        switch(name) {
          case "dossierId":
            dossierId = Long.valueOf(Streams.asString(stream));
            break;
          case "issueId":
            issueId = Long.valueOf(Streams.asString(stream));
            issue = dao.find(Issue.class, issueId);
            if(issue == null && dossierId > 0) {
              Dossier dossier = dao.find(Dossier.class, dossierId);
              issue = Issue.getDefaultIssue();
              issue.setDossier(dossier);
              issue.setModification(new Date());
              issue.setType(IssueType.TYPE_QUESTION);
            }
            break;
          case "redirect":
            redirect = Streams.asString(stream, ElephantContext.getEncoding());
            break;
          case "type":
            String type = Streams.asString(stream, ElephantContext.getEncoding());
            issue.setType(IssueType.valueOf(type));
            break;
          case "webDefault":
            webDefault = Streams.asString(stream, ElephantContext.getEncoding());
            break;
          case "description":
            description = Streams.asString(stream, ElephantContext.getEncoding());
            issue.setDescription(description);
            break;
          case "comment":
            comment = Streams.asString(stream, ElephantContext.getEncoding());
            break;
          case "tags":
            tags = Streams.asString(stream, ElephantContext.getEncoding());
            break;
          default:
            if(issue != null) {
              for(IssueComment ic : issue.getComments()) {
                if(name.equals("comment-" + ic.getId())) {
                  String s = Streams.asString(stream, ElephantContext.getEncoding());
                  ic.setComment(s);
                  ic.setModification(new Date());
                }
              }
            }
            break;
        }
      } else if(issue != null) {
        checkSave(dao);
        Attachment attachment = new Attachment();
        attachment.setModification(new Date());
        attachment.setPath("/issue/" + issue.getId());
        attachment.setOwner(contact.getId());
        attachment.setOnlyOwner(false);
        attachment.setComment(comment);
        attachment.setShowKey(null);
        attachment.setPublishable(true);
        AttachContent ac = new AttachContent();
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        Streams.copy(item.openStream(), baos, true);
        ac.setFileContent(baos.toByteArray());
        attachment.setAttachContent(ac);
        attachment.setFileName(convertToFileName(item.getName()));
        attachment.setFileContentType(item.getContentType());
        attachment.setFileSize(ac.getFileContent().length);
        attachment.setValidated(Application.getApplication().isInRole("attach:self-validate"));
        if(attachment.getFileSize() > 0) {
          attachment = new AttachPU().saveObject(attachment);
          SystemLogger.getInstance().doLog(SystemLogType.LOG_INFO, attachment, "uploaded", null);
        }
      }
    }
    if(issue != null) {
      if(!Strings.isBlank(webDefault)) {
        DescribeItUtil.addDescription(issue, DescribeItUtil.DEFAULT_ID, webDefault, (Contact) contact.getContact(), new ChangedValue<String>() {
          @Override
          public void onChange(String oldValue, String newValue) {
            IssueComment ic = new IssueComment();
            ic.setIssue(issue);
            ic.setModification(new Date());
            ic.setIContact(Authentication.getIContact());
            ic.setComment(HtmlContent.text(newValue));
            issue.getComments().add(ic);        
          }          
        });
      }
      Tags.setTags(issue, tags);
      checkSave(dao);
      SystemLogger.getInstance().doLog(SystemLogType.LOG_INFO, issue, "saved",
              issue.getId() + " - " + issue.getDescription());
    }
    if(!Strings.isBlank(redirect)) {
      TagCloud.resetContext(constructor, "issue");
      if(redirect.endsWith("=0")) {
        redirect = redirect.substring(0, redirect.length() - 1) + issue.getId();
      }
      response.sendRedirect(redirect);
    }
  }
  
  private String convertToFileName(String fileName) {
    if(fileName.contains("/")) {
      fileName = fileName.substring(fileName.lastIndexOf("/") + 1);
    }
    return fileName;
  }
 
  private void checkSave(Dao dao) {
    Date now = new Date();
    if(issue.getId() == null) {
      issue.addReporter(Authentication.getIContact());
      issue.addResponsible(issue.getDossier().getDefaultResponsible());
      if(!Strings.isBlank(description)) {
        issue.setDescription(description);
      } else if(Strings.isBlank(issue.getDescription())) {
        issue.setDescription("********");
      }
      IssueComment ic = new IssueComment();
      ic.setIssue(issue);
      ic.setModification(now);
      ic.setIContact(Authentication.getIContact());
      ic.setComment(HtmlContent.text(description));
      issue.getComments().add(ic);        
    }
    IssueWrapper iw = new IssueWrapper(issue);
    iw.clearEmpties();
    issue.setModification(now);
    issue = dao.saveObject(issue);
  }
 
}