elephant-www/src/main/java/org/turro/log/EntriesGrid.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2021 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.log;
 
import java.util.List;
import java.util.Optional;
import org.turro.string.Strings;
import org.turro.elephant.db.ElephantPU;
import org.turro.elephant.db.WhereClause;
import org.turro.elephant.entities.db.SystemLog;
import org.turro.elephant.util.DateFormats;
import org.turro.entities.Entities;
import org.turro.entities.IElephantEntity;
import org.turro.i18n.I_;
import org.turro.jpa.serializer.SerializerMessage;
import org.turro.zkoss.grid.PagingGrid;
import org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.event.Event;
import org.zkoss.zk.ui.event.EventListener;
import org.zkoss.zk.ui.event.Events;
import org.zkoss.zk.ui.ext.AfterCompose;
import org.zkoss.zul.Column;
import org.zkoss.zul.Columns;
import org.zkoss.zul.Image;
import org.zkoss.zul.Label;
import org.zkoss.zul.Row;
import org.zkoss.zul.Rows;
import org.zkoss.zul.Space;
 
public class EntriesGrid extends PagingGrid {
  
  private String comment, generatorPath, entityPath;
  private int max;
 
  public void setComment(String comment) {
    this.comment = comment;
  }
 
  public void setGeneratorPath(String generatorPath) {
    this.generatorPath = generatorPath;
  }
 
  public void setEntityPath(String entityPath) {
    this.entityPath = entityPath;
  }
 
  public void setMax(int max) {
    this.max = max;
  }
 
  public void search() {
    populateRows();  
  }
 
  private void populateRows() {
    clearColumns();
    addColumns();
    clearRows();
    Rows rows = getRows(true);
    List<SystemLog> entries = getEntries();
    for(SystemLog entry : entries) {
      Row row = new Row();
      row.appendChild(new Label(I_.byKey(entry.getLogType().toString()) + 
              (entry.getCounts() > 1 ? "(" + entry.getCounts()+ ")" : "")));
      row.appendChild(new Label(DateFormats.format(entry.getDateLog(), false)));
      if(Strings.isBlank(generatorPath)) {
        IElephantEntity iee = Entities.getController(entry.getGeneratorPath());
        Object obj = iee.getLabelCtrl();
        if(obj instanceof Component) {
          row.appendChild((Component) obj);
        } else {
          row.appendChild(new Label(entry.getGeneratorName()));
        }
      }
      if(Strings.isBlank(entityPath)) {
        IElephantEntity iee = Entities.getController(entry.getEntityPath());
        Object obj = iee.getLabelCtrl();
        if(obj instanceof Component) {
          row.appendChild((Component) obj);
          if(obj instanceof AfterCompose) {
            ((AfterCompose) obj).afterCompose();
          }
        } else {
          row.appendChild(new Label(Strings.isBlank(entry.getEntityName(), iee.getLabel())));
        }
      }
      row.appendChild(new Label(entry.getComment()));
      final Object data = Optional.ofNullable(entry.getObject()).orElse(entry.getString());
      if(!(data instanceof String)) {
        row.appendChild(new Space());
      } else if(isReadableAndShort((String) data)) {
        row.appendChild(new Label((String) data));
      } else {
        Image info = new Image("/_zul/images/info.png");
        info.addEventListener(Events.ON_CLICK, new EventListener<Event>() {
          @Override
          public void onEvent(Event event) throws Exception {
            new SerializerMessage((String) data).show(getPage());
          }
        });
        row.appendChild(info);
      }
      rows.appendChild(row);
    }
    setRowCount(entries.size());
  }
 
  private List<SystemLog> getEntries() {
    WhereClause wc = new WhereClause();
    wc.addClause("select l from SystemLog as l");
    if(!"*".equals(comment)) {
      wc.setPrefix("where");
      wc.addLikeFields(new String[] {"l.comment"}, comment);
    } else {
      wc.addClause("where 1=1");
    }
    wc.setPrefix(null);
    if(!Strings.isBlank(generatorPath)) {
      wc.addClause("and l.generatorPath = :generatorPath");
      wc.addNamedValue("generatorPath", generatorPath);
    }
    if(!Strings.isBlank(entityPath)) {
      wc.addClause("and l.entityPath = :entityPath");
      wc.addNamedValue("entityPath", entityPath);
    }
    wc.addClause("order by l.dateLog desc");
    return new ElephantPU().getResultList(wc, max);
  }
 
  private void addColumns() {
    Columns cols = getColumns(true);
    cols.appendChild(new Column(I_.get("Type"), null, "80px"));
    cols.appendChild(new Column(I_.get("Date"), null, "150px"));
    if(Strings.isBlank(generatorPath)) {
      cols.appendChild(new Column(I_.get("Generator"), null, "20%"));
    }
    if(Strings.isBlank(entityPath)) {
      cols.appendChild(new Column(I_.get("Entity"), null, "30%"));
    }
    cols.appendChild(new Column(I_.get("Comment"), null, "20%"));
    cols.appendChild(new Column(I_.get("Data"), null, "20%"));
  }
  
  private boolean isReadableAndShort(String data) {
    return (!(data.startsWith("<") || data.startsWith("{")) && data.length() <= 50);
  }
 
}