--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/buildframework/helium/sf/java/sysdef/src/com/nokia/helium/sysdef/ant/taskdefs/SysdefUtils.java	Fri Aug 13 14:59:05 2010 +0300
@@ -0,0 +1,69 @@
+/*
+* Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  
+*
+*/
+package com.nokia.helium.sysdef.ant.taskdefs;
+
+import java.io.File;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.Project;
+
+import com.nokia.helium.core.FileUtils;
+
+/**
+ * Utility class to access the system definition tools.
+ *
+ */
+public final class SysdefUtils {
+    public static final String SYSDEF_HOME_PROPERTY_NAME = "sysdef.tools.home";
+    private static final String ASSET_PATH = "sf/os/buildtools/bldsystemtools/sysdeftools";
+    
+    private SysdefUtils() {        
+    }
+    
+    /**
+     * Get the location of the the system definitions tools.
+     * Use the SYSDEF_HOME_PROPERTY_NAME if it is defined.
+     * Else it tries to search the joinsysdef script on the path,
+     * and finally falls back on the ASSET_PATH location.
+     * @param project the current Ant project.
+     * @param epocroot the epocroot location.
+     * @return a directory represented by a File object.
+     */
+    public static File getSysdefHome(Project project, File epocroot) {
+        if (project.getProperty(SYSDEF_HOME_PROPERTY_NAME) != null) {
+            File dir = new File(project.getProperty(SYSDEF_HOME_PROPERTY_NAME)).getAbsoluteFile();
+            if (dir.exists() && dir.isDirectory()) {
+                return dir;
+            } else {
+                throw new BuildException("The " + SYSDEF_HOME_PROPERTY_NAME +
+                        " property refers to an invalid directory: " + dir);
+            }
+        } else {
+            File dir = FileUtils.findExecutableOnPath("joinsysdef");
+            if (dir != null) {
+                return dir.getParentFile();
+            }
+            // last resorts the asset location...
+            dir = new File(epocroot, ASSET_PATH);
+            if (!dir.exists() || !dir.isDirectory()) {
+                throw new BuildException("Could not find system definition tools home.");
+            }
+            return dir;
+        }
+    }
+    
+}