Changeset 13564

Timestamp:

2007-01-11T13:24:17+13:00 (17 years ago)

Author:

shaoqun

Message:

added the code to allow using user specified browser programe

File:

• trunk/gsdl3/src/java/org/greenstone/server/BrowserLauncher.java (modified) (1 diff)

trunk/gsdl3/src/java/org/greenstone/server/BrowserLauncher.java

@@ -1 +1 @@
 package org.greenstone.server;
 
+import java.io.BufferedReader;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+
 import org.greenstone.gsdl3.util.Misc;
-
+import org.apache.log4j.*;
 
 public class BrowserLauncher 
     extends Thread {
     
-    private Process process = null;
-    /** The initial command string given to this sub-process. */
-    private String command = null;
-    private String url = null;
-    private String[] commands = null;
+    private String url = "about:blank" ;
+    static Logger logger = Logger.getLogger(org.greenstone.server.BrowserLauncher.class.getName());
+    private String[] default_browsers = new String[]{"firefox","mozilla"};
+    private String command = "";
+    private int state = -1; //0: launch success, 1: launch failed 
+    public final  static int LAUNCHSUCCESS = 0;
+    public final static int LAUNCHFAILED = 1;
+    private String browserPath = ""; 
 
-    public BrowserLauncher(String url) {
+    public BrowserLauncher(String browserPath, String url) {
     this.url = url;
-    setBrowserCommand();
-    System.err.println("new browser launcher");
-    printArray(commands);
+        this.browserPath = browserPath;
+        //use the default browser
+    if (this.browserPath.equals("")){
+        setBrowserCommand();
+    }
+    else{
+        this.command = this.browserPath + " " + this.url;
+    }
+    }
+
+    public BrowserLauncher(){
+
     }
 
     // we should try and use settings from the settings panel??
     protected void setBrowserCommand() {
-
-    // Try from a config setting??
-
     if(Misc.isWindows()) {
         // we use cmd and start
         if (Misc.isWindows9x()) {
-        this.commands = StaticStrings.WIN_9X_OPEN_COMMAND;//"command.com /c start \""+url+"\"";
+        this.command = StaticStrings.WIN_9X_OPEN_COMMAND;//"command.com /c start \""+url+"\"";
         } else {
-        this.commands = StaticStrings.WIN_OPEN_COMMAND;//"cmd.exe /c start \"\" \""+url+"\"";
+        this.command = StaticStrings.WIN_OPEN_COMMAND;//"cmd.exe /c start \"\" \""+url+"\"";
         }
     } else if (Misc.isMac()) {
-        this.commands = StaticStrings.MAC_OPEN_COMMAND; // "open %1"
+        this.command = StaticStrings.MAC_OPEN_COMMAND; // "open %1"
     } else {
-        // try mozilla for now
-        this.commands = new String [] {"mozilla", "%1"};
-//      // we try to look for a browser
-//      String [] browsers = new String [] {"mozilla", "netscape"};
-//      for (int i=0; i<browsers.length; i++) {
-//      if (isAvailable(browsers[i])) {
-//          command = browsers[i]+ " %1";
-//          break;
-//      }
-//      }
+         // we try to look for a browser
+        for (int i=0; i<default_browsers.length; i++) {
+        if (isAvailable(default_browsers[i])) {
+            this.command = default_browsers[i] + " %1";
+            break;
+        }
+        }
     }
 
-    for (int i=0; i<commands.length; i++) {
-        if (commands[i].equals("%1")) {
-        commands[i] = url;
-        break;
-        }
-    }
-
-    
+    this.command = this.command.replaceAll("%1",this.url);
     }
 
-//     protected boolean isAvailable(String program) {
-//  try {
-//      ExternalProgram e = new ExternalProgram("which", program);
-//      e.exitProgram();
-//      String out = e.getLineOfProgramOutput();
-//      if (out == null) {
-//      return false;
-//      }
-//      return true;
-//  } catch (Exception exc) {
-//      return false;
-//  }
-//     }
-
-    /** We start the child process inside a new thread so it doesn't block the rest of Gatherer.
-     * @see java.lang.Exception
-     * @see java.lang.Process
-     * @see java.lang.Runtime
-     * @see java.lang.System
-     * @see java.util.Vector
-     */
-    public void run() {
-    System.err.println("in run method");
-    // Call an external process using the args.
-    if(commands == null) {
-        //apps.remove(this);
-        return;
-    }
+    protected boolean isAvailable(String program) {
     try {
-        String prog_name = commands[0];
-        String lower_name = prog_name.toLowerCase();
-        if (lower_name.indexOf("mozilla") != -1 || lower_name.indexOf("netscape") != -1) { 
-        System.err.println("found mozilla or netscape, trying remote it");
-        // mozilla and netscape, try using a remote command to get things in the same window
-        String [] new_commands = new String[] {prog_name, "-raise", "-remote", "openURL("+url+",new-tab)"};
-        printArray(new_commands);
-
-        Runtime rt = Runtime.getRuntime();
-        process = rt.exec(new_commands);
-        int exitCode = process.waitFor();
-        if (exitCode != 0) { // if Netscape or mozilla was not open
-            System.err.println("couldn't do remote, trying original command");
-            printArray(commands);
-            process = rt.exec(commands); // try the original command
-        }
-        } else {
-        // just run what we have been given
-        StringBuffer whole_command = new StringBuffer();
-        for(int i = 0; i < commands.length; i++) {
-            whole_command.append(commands[i]);
-            whole_command.append(" ");
-        }
-        System.err.println("Running " + whole_command.toString());
-        Runtime rt = Runtime.getRuntime();
-        process = rt.exec(commands);
-        process.waitFor();
-        }
-    }
-        
-    catch (Exception exception) {
-        exception.printStackTrace();
-    }
-    // Remove ourself from Gatherer list of threads.
-    //apps.remove(this);
-    // Call exit if we were the last outstanding child process thread.
-    //if (apps.size() == 0 && exit == true) {
-    //    System.exit(exit_status);
-    //}
-    }
-    public void printArray(String [] array) {
-    for(int i = 0; i < array.length; i++) {
-        System.err.println(array[i]+" ");
-    }
-    }
-    public void stopBrowserApplication() {
-    if(process != null) {
-        process.destroy();
+             Runtime run = Runtime.getRuntime();
+             Process process = run.exec("which "+ program);
+             BufferedReader br = new BufferedReader(new InputStreamReader(process.getInputStream()));
+         String line = null;
+         while ((line = br.readLine()) != null){
+         if (line.indexOf("no "+program) !=-1){
+             return false;
+         }
+         }      
+         
+        return true;
+    } catch (Exception e) {
+        return false;
     }
     }
 
+    public  int getState(){
+    return state;
+    }
+    
+    public void run() {
+    // Call an external process using the args.
+    if(command.equals("")) {
+        state = LAUNCHFAILED;
+            logger.error("launching command is empty");
+        return;
+    }
+    
+        try {
+        String prog_name = this.command.substring(0,this.command.indexOf(" "));
+        String lower_name = prog_name.toLowerCase();
+        if (lower_name.indexOf("mozilla") != -1 || lower_name.indexOf("firefox") != -1) { 
+        logger.info("found mozilla or firefox, trying remote it");
+                // mozilla and netscape, try using a remote command to get things in the same window
+        String new_command = prog_name +" -raise -remote openURL("+url+",new-tab)";
+        logger.info(new_command);
+        Runtime rt = Runtime.getRuntime();
+        Process process = rt.exec(new_command);
+                state = LAUNCHSUCCESS;
+        int exitCode = process.waitFor();
+        logger.info("ExitCode:" + exitCode);              
+        if (exitCode != 0) { // if Netscape or mozilla was not open
+            logger.info("couldn't do remote, trying original command");
+                    logger.info(this.command);
+            process = rt.exec(this.command); // try the original command
+                    state = LAUNCHSUCCESS;
+            //for some reseaons the following part is not executed somtimes.
+                    exitCode = process.waitFor();
+                    logger.info("ExitCode:" + exitCode);
+        }
+        } else {
+        logger.info(this.command);
+                Runtime rt = Runtime.getRuntime();
+        Process process = rt.exec(this.command);
+                state = LAUNCHSUCCESS;
+                //for some reseaons the following part is not executed sometimes.
+                int exitCode = process.waitFor();
+        logger.info("ExitCode:" + exitCode);
+        
+        }
+    }
+    catch (Exception e) {
+        logger.error(e);
+            state = LAUNCHFAILED;
+    }
+    
+    }
 }