allow to start the H2 Console using an existing, open connection

h2/src/main/org/h2/server/TcpServer.java

@@ -27,10 +27,10 @@ import org.h2.constant.SysProperties;
 import org.h2.engine.Constants;
 import org.h2.message.Message;
 import org.h2.message.TraceSystem;
-import org.h2.tools.Server;
 import org.h2.util.JdbcUtils;
 import org.h2.util.MathUtils;
 import org.h2.util.NetUtils;
+import org.h2.util.Tool;
 
 /**
  * The TCP server implements the native H2 database server protocol.
@@ -155,11 +155,11 @@ public class TcpServer implements Service {
             if ("-trace".equals(a)) {
                 trace = true;
             } else if ("-log".equals(a) && SysProperties.OLD_COMMAND_LINE_OPTIONS) {
-                trace = Server.readArgBoolean(args, i) == 1;
+                trace = Tool.readArgBoolean(args, i) == 1;
                 i++;
             } else if ("-tcpSSL".equals(a)) {
-                if (Server.readArgBoolean(args, i) != 0) {
-                    ssl = Server.readArgBoolean(args, i) == 1;
+                if (Tool.readArgBoolean(args, i) != 0) {
+                    ssl = Tool.readArgBoolean(args, i) == 1;
                     i++;
                 } else {
                     ssl = true;
@@ -171,15 +171,15 @@ public class TcpServer implements Service {
             } else if ("-baseDir".equals(a)) {
                 baseDir = args[++i];
             } else if ("-tcpAllowOthers".equals(a)) {
-                if (Server.readArgBoolean(args, i) != 0) {
-                    allowOthers = Server.readArgBoolean(args, i) == 1;
+                if (Tool.readArgBoolean(args, i) != 0) {
+                    allowOthers = Tool.readArgBoolean(args, i) == 1;
                     i++;
                 } else {
                     allowOthers = true;
                 }
             } else if ("-ifExists".equals(a)) {
-                if (Server.readArgBoolean(args, i) != 0) {
-                    ifExists = Server.readArgBoolean(args, i) == 1;
+                if (Tool.readArgBoolean(args, i) != 0) {
+                    ifExists = Tool.readArgBoolean(args, i) == 1;
                     i++;
                 } else {
                     ifExists = true;

h2/src/main/org/h2/server/ftp/FtpServer.java

@@ -23,12 +23,12 @@ import org.h2.constant.SysProperties;
 import org.h2.engine.Constants;
 import org.h2.server.Service;
 import org.h2.store.fs.FileSystem;
-import org.h2.tools.Server;
 import org.h2.util.FileUtils;
 import org.h2.util.IOUtils;
 import org.h2.util.MathUtils;
 import org.h2.util.NetUtils;
 import org.h2.util.SortedProperties;
+import org.h2.util.Tool;
 
 /**
  * Small FTP Server. Intended for ad-hoc networks in a secure environment.
@@ -235,7 +235,7 @@ public class FtpServer implements Service {
             } else if ("-trace".equals(a)) {
                 trace = true;
             } else if ("-log".equals(a) && SysProperties.OLD_COMMAND_LINE_OPTIONS) {
-                trace = Server.readArgBoolean(args, i) == 1;
+                trace = Tool.readArgBoolean(args, i) == 1;
                 i++;
             } else if ("-ftpTask".equals(a)) {
                 allowTask = true;

h2/src/main/org/h2/server/pg/PgServer.java

@@ -22,9 +22,9 @@ import java.util.Set;
 import org.h2.constant.SysProperties;
 import org.h2.engine.Constants;
 import org.h2.server.Service;
-import org.h2.tools.Server;
 import org.h2.util.MathUtils;
 import org.h2.util.NetUtils;
+import org.h2.util.Tool;
 
 /**
  * This class implements a subset of the PostgreSQL protocol as described here:
@@ -54,22 +54,22 @@ public class PgServer implements Service {
             if ("-trace".equals(a)) {
                 trace = true;
             } else if ("-log".equals(a) && SysProperties.OLD_COMMAND_LINE_OPTIONS) {
-                trace = Server.readArgBoolean(args, i) == 1;
+                trace = Tool.readArgBoolean(args, i) == 1;
                 i++;
             } else if ("-pgPort".equals(a)) {
                 port = MathUtils.decodeInt(args[++i]);
             } else if ("-baseDir".equals(a)) {
                 baseDir = args[++i];
             } else if ("-pgAllowOthers".equals(a)) {
-                if (Server.readArgBoolean(args, i) != 0) {
-                    allowOthers = Server.readArgBoolean(args, i) == 1;
+                if (Tool.readArgBoolean(args, i) != 0) {
+                    allowOthers = Tool.readArgBoolean(args, i) == 1;
                     i++;
                 } else {
                     allowOthers = true;
                 }
             } else if ("-ifExists".equals(a)) {
-                if (Server.readArgBoolean(args, i) != 0) {
-                    ifExists = Server.readArgBoolean(args, i) == 1;
+                if (Tool.readArgBoolean(args, i) != 0) {
+                    ifExists = Tool.readArgBoolean(args, i) == 1;
                     i++;
                 } else {
                     ifExists = true;

h2/src/main/org/h2/server/web/WebServer.java

@@ -33,7 +33,6 @@ import org.h2.engine.Constants;
 import org.h2.message.TraceSystem;
 import org.h2.server.Service;
 import org.h2.server.ShutdownHandler;
-import org.h2.tools.Server;
 import org.h2.util.ByteUtils;
 import org.h2.util.FileUtils;
 import org.h2.util.JdbcUtils;
@@ -42,6 +41,7 @@ import org.h2.util.NetUtils;
 import org.h2.util.RandomUtils;
 import org.h2.util.Resources;
 import org.h2.util.SortedProperties;
+import org.h2.util.Tool;
 
 /**
  * The web server is a simple standalone HTTP server that implements the H2
@@ -224,15 +224,15 @@ public class WebServer implements Service {
             if ("-webPort".equals(a)) {
                 port = MathUtils.decodeInt(args[++i]);
             } else if ("-webSSL".equals(a)) {
-                if (Server.readArgBoolean(args, i) != 0) {
-                    ssl = Server.readArgBoolean(args, i) == 1;
+                if (Tool.readArgBoolean(args, i) != 0) {
+                    ssl = Tool.readArgBoolean(args, i) == 1;
                     i++;
                 } else {
                     ssl = true;
                 }
             } else if ("-webAllowOthers".equals(a)) {
-                if (Server.readArgBoolean(args, i) != 0) {
-                    allowOthers = Server.readArgBoolean(args, i) == 1;
+                if (Tool.readArgBoolean(args, i) != 0) {
+                    allowOthers = Tool.readArgBoolean(args, i) == 1;
                     i++;
                 } else {
                     allowOthers = true;
@@ -243,8 +243,8 @@ public class WebServer implements Service {
                 String baseDir = args[++i];
                 SysProperties.setBaseDir(baseDir);
             } else if ("-ifExists".equals(a)) {
-                if (Server.readArgBoolean(args, i) != 0) {
-                    ifExists = Server.readArgBoolean(args, i) == 1;
+                if (Tool.readArgBoolean(args, i) != 0) {
+                    ifExists = Tool.readArgBoolean(args, i) == 1;
                     i++;
                 } else {
                     ifExists = true;
@@ -252,7 +252,7 @@ public class WebServer implements Service {
             } else if ("-trace".equals(a)) {
                 trace = true;
             } else if ("-log".equals(a) && SysProperties.OLD_COMMAND_LINE_OPTIONS) {
-                trace = Server.readArgBoolean(args, i) == 1;
+                trace = Tool.readArgBoolean(args, i) == 1;
                 i++;
             }
         }
@@ -278,15 +278,21 @@ public class WebServer implements Service {
         for (int i = 0; i < LANGUAGES.length; i++) {
             languages.add(LANGUAGES[i][0]);
         }
-        url = (ssl ? "https" : "http") + "://" + NetUtils.getLocalAddress() + ":" + port;
+        updateURL();
     }
 
     public String getURL() {
         return url;
     }
+    
+    private void updateURL() {
+        url = (ssl ? "https" : "http") + "://" + NetUtils.getLocalAddress() + ":" + port;
+    }
 
     public void start() throws SQLException {
         serverSocket = NetUtils.createServerSocket(port, ssl);
+        port = serverSocket.getLocalPort();
+        updateURL();
     }
 
     public void listen() {
@@ -645,4 +651,19 @@ public class WebServer implements Service {
         return allowScript;
     }
 
+    /**
+     * Create a session with a given connection.
+     * 
+     * @param conn the connection
+     * @return the URL of the web site to access this connection
+     */
+    public String addSession(Connection conn) throws SQLException {
+        WebSession session = createNewSession("local");
+        session.setShutdownServerOnDisconnect();
+        session.setConnection(conn);
+        session.put("url", conn.getMetaData().getURL());
+        String s = (String) session.get("sessionId");
+        return url + "/frame.jsp?jsessionid=" + s;
+    }
+
 }

h2/src/main/org/h2/server/web/WebSession.java

@@ -66,6 +66,7 @@ class WebSession {
     private DbContextRule aliasRule;
     private DbContextRule columnAliasRule;
     private Bnf bnf;
+    private boolean shutdownServerOnDisconnect;
 
     WebSession(WebServer server) {
         this.server = server;
@@ -233,5 +234,16 @@ class WebSession {
     DbContents getContents() {
         return contents;
     }
+    
+    /**
+     * Shutdown the server when disconnecting.
+     */
+    void setShutdownServerOnDisconnect() {
+        this.shutdownServerOnDisconnect = true;
+    }
+    
+    boolean getShutdownServerOnDisconnect() {
+        return shutdownServerOnDisconnect;
+    }
 
 }

h2/src/main/org/h2/server/web/WebThread.java

@@ -119,6 +119,11 @@ class WebThread extends Thread implements DatabaseEventListener {
      */
     void stopNow() {
         this.stop = true;
+        try {
+            socket.close();
+        } catch (IOException e) {
+            // ignore
+        }
     }
 
     private String getAllowedFile(String requestedFile) {
@@ -1197,7 +1202,11 @@ class WebThread extends Thread implements DatabaseEventListener {
             session.remove("user");
             session.remove("tool");
             if (conn != null) {
-                conn.close();
+                if (session.getShutdownServerOnDisconnect()) {
+                    server.shutdown();
+                } else {
+                    conn.close();
+                }
             }
         } catch (Exception e) {
             trace(e.toString());

h2/src/main/org/h2/tools/Server.java

@@ -7,6 +7,7 @@
 package org.h2.tools;
 
 import java.io.PrintStream;
+import java.sql.Connection;
 import java.sql.SQLException;
 
 import org.h2.constant.ErrorCode;
@@ -21,6 +22,7 @@ import org.h2.server.ftp.FtpServer;
 import org.h2.server.pg.PgServer;
 import org.h2.server.web.WebServer;
 import org.h2.util.StartBrowser;
+import org.h2.util.Tool;
 
 /**
  * This tool can be used to start various database servers (listeners).
@@ -129,12 +131,12 @@ public class Server implements Runnable, ShutdownHandler {
      * @param args the command line arguments
      * @throws SQLException
      */
-    public static void main(String[] args) throws SQLException {
-        int exitCode = new Server().run(args, System.out);
-        if (exitCode != 0) {
-            System.exit(exitCode);
-        }
-    }
+//    public static void main(String[] args) throws SQLException {
+//        int exitCode = new Server().run(args, System.out);
+//        if (exitCode != 0) {
+//            System.exit(exitCode);
+//        }
+//    }
 
     /**
      * INTERNAL
@@ -158,11 +160,11 @@ public class Server implements Runnable, ShutdownHandler {
                     startDefaultServers = false;
                     webStart = true;
                 } else if ("-webAllowOthers".equals(arg)) {
-                    if (readArgBoolean(args, i) != 0) {
+                    if (Tool.readArgBoolean(args, i) != 0) {
                         i++;
                     }
                 } else if ("-webSSL".equals(arg)) {
-                    if (readArgBoolean(args, i) != 0) {
+                    if (Tool.readArgBoolean(args, i) != 0) {
                         i++;
                     }
                 } else if ("-webPort".equals(arg)) {
@@ -181,11 +183,11 @@ public class Server implements Runnable, ShutdownHandler {
                     startDefaultServers = false;
                     tcpStart = true;
                 } else if ("-tcpAllowOthers".equals(arg)) {
-                    if (readArgBoolean(args, i) != 0) {
+                    if (Tool.readArgBoolean(args, i) != 0) {
                         i++;
                     }
                 } else if ("-tcpSSL".equals(arg)) {
-                    if (readArgBoolean(args, i) != 0) {
+                    if (Tool.readArgBoolean(args, i) != 0) {
                         i++;
                     }
                 } else if ("-tcpPort".equals(arg)) {
@@ -197,8 +199,8 @@ public class Server implements Runnable, ShutdownHandler {
                     tcpShutdown = true;
                     tcpShutdownServer = args[++i];
                 } else if ("-tcpShutdownForce".equals(arg)) {
-                    if (readArgBoolean(args, i) != 0) {
-                        tcpShutdownForce = readArgBoolean(args, i) == 1;
+                    if (Tool.readArgBoolean(args, i) != 0) {
+                        tcpShutdownForce = Tool.readArgBoolean(args, i) == 1;
                         i++;
                     } else {
                         tcpShutdownForce = true;
@@ -212,7 +214,7 @@ public class Server implements Runnable, ShutdownHandler {
                     startDefaultServers = false;
                     pgStart = true;
                 } else if ("-pgAllowOthers".equals(arg)) {
-                    if (readArgBoolean(args, i) != 0) {
+                    if (Tool.readArgBoolean(args, i) != 0) {
                         i++;
                     }
                 } else if ("-pgPort".equals(arg)) {
@@ -246,7 +248,7 @@ public class Server implements Runnable, ShutdownHandler {
             } else if ("-log".equals(arg) && SysProperties.OLD_COMMAND_LINE_OPTIONS) {
                 i++;
             } else if ("-ifExists".equals(arg)) {
-                if (readArgBoolean(args, i) != 0) {
+                if (Tool.readArgBoolean(args, i) != 0) {
                     i++;
                 }
             } else if ("-baseDir".equals(arg)) {
@@ -322,29 +324,6 @@ public class Server implements Runnable, ShutdownHandler {
         return exitCode;
     }
 
-    /**
-     * Read an argument and check if it is true (1), false (-1), or not (0).
-     * This method is used for compatibility with older versions only.
-     * 
-     * @param args the list of arguments
-     * @param i the index - 1
-     * @return 1, -1, or 0
-     */
-    public static int readArgBoolean(String[] args, int i) {
-        if (!SysProperties.OLD_COMMAND_LINE_OPTIONS) {
-            return 0;
-        }
-        if (i + 1 < args.length) {
-            String a = args[++i];
-            if ("true".equals(a)) {
-                return 1;
-            } else if ("false".equals(a)) {
-                return -1;
-            }
-        }
-        return 0;
-    }
-
     /**
      * Shutdown a TCP server. If force is set to false, the server will not
      * allow new connections, but not kill existing connections, instead it will
@@ -564,4 +543,36 @@ public class Server implements Runnable, ShutdownHandler {
     public Service getService() {
         return service;
     }
+    
+    /**
+     * Start a web server and a browser that uses the given connection. The
+     * current transaction is preserved. This is specially useful to manually
+     * inspect the database when debugging.
+     * 
+     * @param conn the database connection (the database must be open)
+     */
+    public static void startWebServer(Connection conn) throws SQLException {
+        final Object waitUntilDisconnected = new Object();
+        WebServer webServer = new WebServer();
+        Server server = new Server(webServer, new String[] { "-webPort", "0" });
+        webServer.setShutdownHandler(new ShutdownHandler() {
+            public void shutdown() {
+                synchronized (waitUntilDisconnected) {
+                    waitUntilDisconnected.notifyAll();
+                }
+            }
+        });
+        server.start();
+        String url = webServer.addSession(conn);
+        StartBrowser.openURL(url);
+        synchronized (waitUntilDisconnected) {
+            try {
+                waitUntilDisconnected.wait();
+            } catch (InterruptedException e) {
+                // ignore
+            }
+        }
+        webServer.stop();
+    }
+
 }

h2/src/main/org/h2/util/Tool.java

@@ -9,6 +9,8 @@ package org.h2.util;
 import java.io.PrintStream;
 import java.sql.SQLException;
 
+import org.h2.constant.SysProperties;
+
 /**
  * Command line tools implement the tool interface so that they can be used in
  * the H2 Console.
@@ -54,5 +56,28 @@ public abstract class Tool {
         }
         out.println(buff.toString());
     }
+
+    /**
+     * Read an argument and check if it is true (1), false (-1), or not (0).
+     * This method is used for compatibility with older versions only.
+     * 
+     * @param args the list of arguments
+     * @param i the index - 1
+     * @return 1 for true, -1 for false, or 0 for not read
+     */
+    public static int readArgBoolean(String[] args, int i) {
+        if (!SysProperties.OLD_COMMAND_LINE_OPTIONS) {
+            return 0;
+        }
+        if (i + 1 < args.length) {
+            String a = args[++i];
+            if ("true".equals(a)) {
+                return 1;
+            } else if ("false".equals(a)) {
+                return -1;
+            }
+        }
+        return 0;
+    }
     
 }