Java tutorial
/* * Copyright 2008-2014 by Emeric Vernat * * This file is part of Java Melody. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package net.bull.javamelody; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Component; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.text.DateFormat; import java.util.List; import javax.swing.JLabel; import javax.swing.JTable; import javax.swing.SwingUtilities; import net.bull.javamelody.swing.Utilities; import net.bull.javamelody.swing.table.MDateTableCellRenderer; import net.bull.javamelody.swing.table.MMultiLineTableCellRenderer; import net.bull.javamelody.swing.table.MTable; import net.bull.javamelody.swing.table.MTableScrollPane; import com.lowagie.text.Font; /** * Panel des erreurs http et dans les logs ou dans les jobs. * @author Emeric Vernat */ class CounterErrorPanel extends MelodyPanel { private static final long serialVersionUID = 1L; private final Counter counter; private final MTable<CounterError> table; private final class MessageWithStackTraceTableCellRenderer extends MMultiLineTableCellRenderer { private static final long serialVersionUID = 1L; MessageWithStackTraceTableCellRenderer() { super(); } @Override public Component getTableCellRendererComponent(JTable jtable, Object value, boolean isSelected, boolean hasFocus, int row, int column) { // texte selon la valeur (message de l'erreur) super.getTableCellRendererComponent(jtable, value, isSelected, hasFocus, row, column); // et tooltip selon la stackTrace // (l'appel setToolTipText doit tre aprs getTableCellRendererComponent // car MMultiLineTableCellRenderer change le toolTipText dans setValue) if (row == -1) { setToolTipText(null); } else { final MTable<CounterError> myTable = getTable(); final CounterError counterError = myTable.getList().get(myTable.convertRowIndexToModel(row)); final String stackTrace = counterError.getStackTrace(); if (stackTrace == null) { setToolTipText(null); } else { setToolTipText("<html>" + stackTrace.replace("[See nested", "\n[See nested").replaceAll("\n", "<br/>")); } } return this; } } CounterErrorPanel(RemoteCollector remoteCollector, Counter counter) { super(remoteCollector); assert counter != null; assert counter.isErrorCounter(); this.counter = counter; if (counter.getErrorsCount() == 0) { this.table = null; final JLabel noErrorsLabel = createNoErrorsLabel(); add(noErrorsLabel, BorderLayout.CENTER); } else { final MTableScrollPane<CounterError> scrollPane = createScrollPane(); this.table = scrollPane.getTable(); final List<CounterError> errors = counter.getErrors(); table.setList(errors); Utilities.adjustTableHeight(table); add(scrollPane, BorderLayout.CENTER); } } private MTableScrollPane<CounterError> createScrollPane() { final MTableScrollPane<CounterError> tableScrollPane = new MTableScrollPane<>(); final MTable<CounterError> myTable = tableScrollPane.getTable(); final List<CounterError> errors = counter.getErrors(); final boolean displayUser = HtmlCounterErrorReport.shouldDisplayUser(errors); final boolean displayHttpRequest = HtmlCounterErrorReport.shouldDisplayHttpRequest(errors); if (errors.size() >= Counter.MAX_ERRORS_COUNT) { final JLabel warnLabel = new JLabel( ' ' + getFormattedString("Dernieres_erreurs_seulement", Counter.MAX_ERRORS_COUNT)); warnLabel.setFont(warnLabel.getFont().deriveFont(Font.BOLD)); warnLabel.setForeground(Color.RED); add(warnLabel, BorderLayout.NORTH); } myTable.addColumn("date", getString("Date")); if (displayHttpRequest) { myTable.addColumn("httpRequest", getString("Requete")); } if (displayUser) { myTable.addColumn("remoteUser", getString("Utilisateur")); } myTable.addColumn("message", getString("Erreur")); final MDateTableCellRenderer dateTableCellRenderer = new MDateTableCellRenderer(); dateTableCellRenderer.setDateFormat( DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.MEDIUM, I18N.getCurrentLocale())); myTable.setColumnCellRenderer("date", dateTableCellRenderer); myTable.setColumnCellRenderer("message", new MessageWithStackTraceTableCellRenderer()); // invokeLater ncessaire pour que les dimensions et l'affichage soient corrects // avec le MessageWithStackTraceTableCellRenderer extends MMultiLineTableCellRenderer // (tester par exemple l'erreur de compilation dans la page jsp avec tomcat) SwingUtilities.invokeLater(new Runnable() { @Override public void run() { Utilities.adjustTableHeight(myTable); } }); myTable.addMouseListener(new MouseAdapter() { @Override public void mouseClicked(MouseEvent e) { if (e.getClickCount() == 2) { final CounterError counterError = getTable().getSelectedObject(); if (counterError.getStackTrace() != null) { Utilities.showTextInPopup(CounterErrorPanel.this, counterError.getMessage(), counterError.getStackTrace()); } } } }); return tableScrollPane; } private JLabel createNoErrorsLabel() { return new JLabel(' ' + getString("Aucune_erreur")); } MTable<CounterError> getTable() { return table; } }