setsharedialog.java

该系统是一个基于p2p的即时聊天系统

/*
 * @(#) SetShareDialog.java
 * Copyright 2004 HWStudio. All rights reserved.
 */
package hws.item.smart.dialog;
//导入核心Java类库
import java.io.IOException;
import java.io.StringReader;
import java.awt.Insets;
import java.awt.Component;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.GridBagLayout;
import java.awt.GridBagConstraints;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.MalformedURLException;
import java.util.List;
import java.util.Vector;
import java.util.ArrayList;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTable;
import javax.swing.JDialog;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JTextField;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.DefaultCellEditor;
import javax.swing.table.TableColumn;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
//导入自定义Java类库
import hws.item.smart.Smart;
import hws.item.smart.misc.ImageShop;
import hws.item.smart.misc.XMLConfig;
import hws.item.smart.misc.PopToolkit;
import hws.item.smart.misc.StringShop;
import hws.item.smart.panel.function.chat.ViewPanel;
import hws.item.smart.panel.function.chat.FriendPanel;
import hws.item.smart.panel.function.share.UploadPanel;
import hws.item.smart.utility.chat.UserInfo;
//导入第三方Java类库
import org.jdom.Element;
import org.jdom.Document;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;
import org.jdom.output.XMLOutputter;
import org.apache.xmlrpc.XmlRpc;
import org.apache.xmlrpc.XmlRpcClient;
import org.apache.xmlrpc.XmlRpcRequest;
import org.apache.xmlrpc.XmlRpcException;
/**
 * 设置共享对话框
 *
 * @version 0.1 2005-08-29
 * @author Hwerz
 */
public class SetShareDialog extends JDialog {
    /*------------------------------------------------------------------------*
     *                                属性定义                                *
     *------------------------------------------------------------------------*/
    /**
     * 好友列表的视图
     */
    private JTable friendTable;
    /**
     * 好友列表的模型
     */
    private DefaultTableModel friendModel;
    /**
     * 用户ID
     */
    private String id;
    /*------------------------------------------------------------------------*
     *                                构造函数                                *
     *------------------------------------------------------------------------*/
    /**
     * Create a new instance of this class
     *
     * @param id 用户ID
     */
    public SetShareDialog(String id) {
        super(Smart.getInstance(), "设置共享", true);
        this.id = id;
        Container c = getContentPane();
        c.setLayout(new GridBagLayout());
        //工具栏面板
        GridBagConstraints constraints = new GridBagConstraints(
            //gridx, gridy
            0, 0,
            //gridwidth, gridheight
            GridBagConstraints.REMAINDER, 1,
            //weightx, weighty
            1.0, 0.0,
            //anchor
            GridBagConstraints.NORTHWEST,
            //fill
            GridBagConstraints.HORIZONTAL,
            //insets
            new Insets(5, 0, 0, 0),
            //ipadx, ipady
            0, 0);
        c.add(new Toolbar(), constraints);
        //共享文件标签
        constraints.gridy = 1;
        constraints.gridwidth = 1;
        constraints.weightx = 0.0;
        constraints.fill = GridBagConstraints.NONE;
        constraints.insets = new Insets(5, 5, 0, 0);
        c.add(new JLabel("共享文件："), constraints);
        //共享文件文本框
        JTextField fileTextField =
            new JTextField(UploadPanel.getInstance().getSelectedFile());
        fileTextField.setEditable(false);
        constraints.gridx = 1;
        constraints.gridwidth = GridBagConstraints.REMAINDER;
        constraints.weightx = 1.0;
        constraints.fill = GridBagConstraints.HORIZONTAL;
        constraints.insets = new Insets(5, 5, 0, 5);
        c.add(fileTextField, constraints);
        //好友列表组件
        Object[] header = {"ID", "昵称", "姓名", "共享"};
        friendModel = new DefaultTableModel();
        friendModel.setColumnIdentifiers(header);
        List friendList1 = UploadPanel.getInstance().getAllShareFriends();
        List friendList2 = FriendPanel.getInstance().getAllFriends();
        for (int i = 0; i < friendList2.size(); i++) {
            Boolean selected = Boolean.FALSE;
            String friendID = friendList2.get(i).toString();
            if (friendList1.contains(friendID)) {
                selected = Boolean.TRUE;
            }
            UserInfo user = UserInfo.getRemoteUserInfo(friendID);
            friendModel.addRow(new Object[] {
                friendID, user.getBasicInfo().getNickname(),
                user.getOptionalInfo().getName(), selected});
        }
        friendTable = new JTable(friendModel) {
            public boolean isCellEditable(int row, int column) {
                boolean editable;
                if (column == friendModel.getColumnCount() - 1) {
                    editable = true;
                } else {
                    editable = false;
                }
                return editable;
            }
        };
        TableColumn column = friendTable.getColumn("共享");
        column.setCellRenderer(new CheckCellRenderer());
        column.setCellEditor(new DefaultCellEditor(new JCheckBox()));
        JScrollPane scroller = new JScrollPane(friendTable,
            JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
            JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
        constraints.gridx = 0;
        constraints.gridy = 2;
        constraints.weighty = 1.0;
        constraints.fill = GridBagConstraints.BOTH;
        constraints.insets = new Insets(5, 5, 5, 5);
        c.add(scroller, constraints);
        //设置对话框
        setSize(600, 450);
        setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
        PopToolkit.makeWindowCenter(this);
    }
    /*------------------------------------------------------------------------*
     *                                私有方法                                *
     *------------------------------------------------------------------------*/
    /**
     * 设置共享
     */
    private void setShare() {
        try {
            XmlRpc.setDriver("org.apache.xerces.parsers.SAXParser");
            XmlRpcClient client = new XmlRpcClient(genURL());
            String response = client.execute(genRequest()).toString();
            SAXBuilder builder = new SAXBuilder();
            StringReader reader = new StringReader(response);
            Document document = builder.build(reader);
            Element root = document.getRootElement();
            String result = root.getChild("Result").getText();
            if (result.equals(StringShop.SET_SHARE_SUCCESS)) {
                JOptionPane.showMessageDialog(Smart.getInstance(),
                    "设置共享成功！", StringShop.HINT_TITLE,
                    JOptionPane.INFORMATION_MESSAGE);
            } else {
                JOptionPane.showMessageDialog(Smart.getInstance(),
                    "设置共享失败，请稍候再试！", StringShop.HINT_TITLE,
                    JOptionPane.INFORMATION_MESSAGE);
            }
        } catch (ClassNotFoundException e) {
            JOptionPane.showMessageDialog(Smart.getInstance(),
                "系统找不到类库“org.apache.xerces.parsers.SAXParser”！",
                StringShop.HINT_TITLE, JOptionPane.INFORMATION_MESSAGE);
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (XmlRpcException e) {
            e.printStackTrace();
        } catch (IOException e) {
            JOptionPane.showMessageDialog(Smart.getInstance(),
                "设置服务已关闭，请稍候再试！", StringShop.HINT_TITLE,
                JOptionPane.INFORMATION_MESSAGE);
        } catch (JDOMException e) {
            JOptionPane.showMessageDialog(Smart.getInstance(),
                "操作失败，请稍候再试！", StringShop.HINT_TITLE,
                JOptionPane.INFORMATION_MESSAGE);
        }
    }
    /**
     * 生成请求URL
     *
     * @return 生成的请求URL
     */
    private String genURL() {
        StringBuffer url = new StringBuffer();
        url.append("http://");
        url.append(XMLConfig.getServicesIP());
        url.append(":");
        url.append(XMLConfig.getSettingPort());
        url.append("/");
        return url.toString();
    }
    /**
     * 生成XML-RPC请求消息
     *
     * @return 生成的XML-RPC请求消息
     */
    private XmlRpcRequest genRequest() {
        //请求方法
        StringBuffer method = new StringBuffer();
        method.append(XMLConfig.getSettingClass());
        method.append(".");
        method.append(XMLConfig.getSettingMethod());
        //请求参数
        Vector params = new Vector();
        XMLOutputter outputter = new XMLOutputter();
        params.addElement(outputter.outputString(genDocument()));
        return new XmlRpcRequest(method.toString(), params);
    }
    /**
     * 生成XML文档
     *
     * @return 生成的XML文档
     */
    private Document genDocument() {
        Element request = new Element("Request");
        Element share = new Element("Share");
        request.addContent(share);
        share.setAttribute("id", ViewPanel.getInstance().getUserID());
        share.setAttribute("file", UploadPanel.getInstance().getSelectedFile());
        Element friends = new Element("Friends");
        share.addContent(friends);
        List ids = getSelectedFriends();
        for (int i = 0; i < ids.size(); i++) {
            Element friend = new Element("Friend");
            friends.addContent(friend);
            friend.setAttribute("id", ids.get(i).toString());
        }
        return new Document(request);
    }
    /**
     * 返回选中的好友列表
     *
     * @return 选中的好友列表
     */
    private List getSelectedFriends() {
        List friends = new ArrayList();
        for (int i = 0; i < friendModel.getRowCount(); i++) {
            if (friendModel.getValueAt(i, 3).toString().equals("true")) {
                friends.add(friendModel.getValueAt(i, 0));
            }
        }
        return friends;
    }
    /*------------------------------------------------------------------------*
     *                                 内部类                                 *
     *------------------------------------------------------------------------*/
    /**
     * 工具栏面板
     */
    class Toolbar extends JPanel implements ActionListener {
        /**
         * Create a new instance of this class
         */
        public Toolbar() {
            super(new FlowLayout(FlowLayout.CENTER, 5, 0));
            //确定
            JButton button = new JButton("确定", ImageShop.OK_IMAGEICON);
            button.addActionListener(this);
            add(button);
            //取消
            button = new JButton("取消", ImageShop.CANCEL_IMAGEICON);
            button.addActionListener(this);
            add(button);
        }
        /**
         * 实现接口ActionListener的方法
         *
         * @param event the event that characterizes the action
         */
        public void actionPerformed(ActionEvent event) {
            String command = event.getActionCommand();
            if (command.equals("确定") == true) {
                setShare();
                UploadPanel.getInstance().refresh();
                SetShareDialog.this.dispose();
            } else {
                SetShareDialog.this.dispose();
            }
        }
    }
    /**
     * 表格渲染器
     */
    class CheckCellRenderer extends JCheckBox implements TableCellRenderer {
        /**
         * Create a new instance of this class
         */
        public CheckCellRenderer() {
            super();
            setOpaque(true);
        }
        /**
         * 实现接口TableCellRenderer的方法
         *
         * @param table the JTable
         * @param value the value to assign to the cell at [row, column]
         * @param isSelected true true if cell is selected
         * @param hasFocus true if cell has focus
         * @param row the row of the cell to render
         * @param column the column of the cell to render
         * @return the component used for drawing the cell
         */
        public Component getTableCellRendererComponent(JTable table,
            Object value, boolean isSelected, boolean hasFocus, int row,
            int column) {
            if (value instanceof Boolean) {
                Boolean b = (Boolean) value;
                setSelected(b.booleanValue());
            }
            setBackground(isSelected && hasFocus == false
                ? table.getSelectionBackground() : table.getBackground());
            setForeground(isSelected && hasFocus == false
                ? table.getSelectionForeground() : table.getForeground());
            return this;
        }
    }
}