Version 16, February 2014

[GpsPrune.git] / tim / prune / ExternalTools.java

diff --git a/tim/prune/ExternalTools.java b/tim/prune/ExternalTools.java
index cd65fffd519d68a95a21b0623dac2146d3e0048b..8cd1aef178f44c80674af5923a7a4937ec9e4466 100644 (file)
--- a/tim/prune/ExternalTools.java
+++ b/tim/prune/ExternalTools.java
@@ -2,46 +2,90 @@ package tim.prune;
 
 import java.io.IOException;
 
+import tim.prune.config.Config;
+
 
 /**
  * Class to manage interfaces to external tools, like exiftool
  */
 public abstract class ExternalTools
 {
+       /** Constant for Exiftool */
+       public static final int TOOL_EXIFTOOL = 0;
+       /** Constant for Gpsbabel */
+       public static final int TOOL_GPSBABEL = 1;
+       /** Constant for Gnuplot */
+       public static final int TOOL_GNUPLOT  = 2;
+       /** Constant for Xerces xml library */
+       public static final int TOOL_XERCES   = 3;
+       /** Config keys in order that the tools are defined above */
+       private static final String[] CONFIG_KEYS = {Config.KEY_EXIFTOOL_PATH, Config.KEY_GPSBABEL_PATH, Config.KEY_GNUPLOT_PATH};
+       /** Verification flags for the tools in the order defined above */
+       private static final String[] VERIFY_FLAGS = {"-v", "-V", "-V"};
+
 
        /**
-        * Attempt to call Povray to see if it's installed / available in path
-        * @return true if found, false otherwise
+        * Check if the selected tool is installed
+        * @param inToolNum number of tool, from constants
+        * @return true if selected tool is installed
         */
-       public static boolean isPovrayInstalled()
+       public static boolean isToolInstalled(int inToolNum)
        {
-               try
-               {
-                       Runtime.getRuntime().exec("povray");
-                       return true;
-               }
-               catch (IOException ioe)
-               {
-                       // exception thrown, povray not found
-                       return false;
+               switch (inToolNum) {
+                       case TOOL_EXIFTOOL:
+                       case TOOL_GPSBABEL:
+                       case TOOL_GNUPLOT:
+                               String toolPath = Config.getConfigString(CONFIG_KEYS[inToolNum]);
+                               if (toolPath != null && toolPath.length() > 0) {
+                                       return check(toolPath + " " + VERIFY_FLAGS[inToolNum]);
+                               }
+                               break;
+                       case TOOL_XERCES:
+                               try {
+                                       return Class.forName("org.apache.xerces.parsers.SAXParser").getClassLoader() != null;
+                               }
+                               catch (ClassNotFoundException e) {
+                                       // System.err.println(e.getClass().getName() + " : " + e.getMessage());
+                               }
+                               break;
                }
+               // Not found
+               return false;
        }
 
+       /**
+        * Check if the selected tool is installed using the given path
+        * @param inToolNum number of tool, from constants
+        * @param inPath selected path to use instead of configured one
+        * @return true if selected tool is installed
+        */
+       public static boolean isToolInstalled(int inToolNum, String inPath)
+       {
+               if (inPath == null || inPath.equals("")) {return false;}
+               switch (inToolNum) {
+                       case TOOL_EXIFTOOL:
+                       case TOOL_GPSBABEL:
+                       case TOOL_GNUPLOT:
+                               return check(inPath + " " + VERIFY_FLAGS[inToolNum]);
+               }
+               // Not found
+               return false;
+       }
 
        /**
-        * Attempt to call Exiftool to see if it's installed / available in path
+        * Attempt to call the specified command
         * @return true if found, false otherwise
         */
-       public static boolean isExiftoolInstalled()
+       private static boolean check(String inCommand)
        {
                try
                {
-                       Runtime.getRuntime().exec("exiftool -v");
+                       Runtime.getRuntime().exec(inCommand);
                        return true;
                }
                catch (IOException ioe)
                {
-                       // exception thrown, exiftool not found
+                       // exception thrown, command not found
                        return false;
                }
        }