package com.googlecode.richrest.client.view.swing;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Toolkit;
import java.awt.datatransfer.StringSelection;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFileChooser;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JToolBar;
import com.googlecode.richrest.client.event.ExceptionAdapter;
import com.googlecode.richrest.client.event.ExceptionEvent;
import com.googlecode.richrest.client.event.ExceptionListener;
import com.googlecode.richrest.client.work.Worker;
import com.googlecode.richrest.util.ExceptionUtils;
public class ExceptionPane extends JPanel {
private static final long serialVersionUID = 1L;
private final JTextArea exceptionTextArea = new JTextArea();
private final JCheckBox autoScrollCheckBox = new JCheckBox("自动滚动", true);
private final JToolBar toolBar = new JToolBar();
public JToolBar getToolBar() {
return toolBar;
}
private final ExceptionListener exceptionListener;
public ExceptionPane() {
this.setLayout(new BorderLayout());
toolBar.setFloatable(false);
this.add(BorderLayout.NORTH, toolBar);
exceptionTextArea.setEditable(false);
exceptionTextArea.setBackground(Color.WHITE);
final JScrollPane exceptionPane = new JScrollPane();
exceptionPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
exceptionPane.getViewport().setView(exceptionTextArea);
this.add(BorderLayout.CENTER, exceptionPane);
final JButton saveButton = new JButton("保存", Images.getIcon("save.gif"));
saveButton.setToolTipText("保存异常信息");
toolBar.add(saveButton);
saveButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JFileChooser fileChooser = new JFileChooser();
fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
fileChooser.setMultiSelectionEnabled(false);
fileChooser.setSelectedFile(new File("exception.txt"));
int i = fileChooser.showSaveDialog(ExceptionPane.this);
if (i == JFileChooser.APPROVE_OPTION) {
File file = fileChooser.getSelectedFile();
if (file.exists()) {
int ch = JOptionPane.showConfirmDialog(ExceptionPane.this, "文件已存在，是否覆盖?", "保存", JOptionPane.YES_NO_OPTION);
if (ch != JOptionPane.YES_OPTION)
return;
}
try {
FileWriter writer = null;
try {
writer = new FileWriter(file);
writer.write(exceptionTextArea.getText());
writer.flush();
} finally {
if (writer != null)
writer.close();
}
JOptionPane.showMessageDialog(ExceptionPane.this, "保存异常信息成功!", "保存", JOptionPane.INFORMATION_MESSAGE);
} catch (IOException ex) {
JOptionPane.showMessageDialog(ExceptionPane.this, "保存异常信息失败! 原因: " + ex.getMessage(), "保存", JOptionPane.WARNING_MESSAGE);
}
}
}
});
JButton copyButton = new JButton("复制", Images.getIcon("copy.gif"));
toolBar.add(copyButton);
copyButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
ExceptionPane.this.copyText();
}
});
JButton clearButton = new JButton("清空", Images.getIcon("clear.gif"));
toolBar.add(clearButton);
clearButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
ExceptionPane.this.clearText();
}
});
toolBar.add(autoScrollCheckBox);
exceptionListener = new ExceptionDelegate(new ExceptionAdapter() {
public void onBackCatched(ExceptionEvent event) {
ExceptionPane.this.appendText(ExceptionUtils.getDetailMessage(event.getException()));
}
public void onForeCatched(ExceptionEvent event) {
ExceptionPane.this.appendText(ExceptionUtils.getDetailMessage(event.getException()));
}
});
Worker.getWorker().addListener(exceptionListener);
}
protected void appendText(String text) {
if (exceptionTextArea.getText().length() > 80000)
exceptionTextArea.setText("");
exceptionTextArea.append("[");
exceptionTextArea.append(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS").format(new Date()));
exceptionTextArea.append("]\n");
exceptionTextArea.append(text);
exceptionTextArea.append("\n");
if (autoScrollCheckBox.isSelected()) {
String str = exceptionTextArea.getText();
int len = str.length();
if (len > 0)
exceptionTextArea.select(len - 1, len);
}
}
protected void clearText() {
exceptionTextArea.setText("");
}
protected void copyText() {
StringSelection stringSelection = new StringSelection(exceptionTextArea.getText());
Toolkit.getDefaultToolkit().getSystemClipboard().setContents(stringSelection, stringSelection);
JOptionPane.showMessageDialog(ExceptionPane.this, "已复制异常信息到您的粘贴板上!", "复制", JOptionPane.INFORMATION_MESSAGE);
}
public void dispose() {
Worker.getWorker().removeListener(exceptionListener);
}
}