From b086f57f56bf0eb9dab9cf321a0f69aaaae84347 Mon Sep 17 00:00:00 2001
From: Andrew Branson <andrew.branson@cern.ch>
Date: Wed, 30 May 2012 08:37:45 +0200
Subject: Initial Maven Conversion

---
 src/main/java/com/c2kernel/utils/Resource.java | 166 +++++++++++++++++++++++++
 1 file changed, 166 insertions(+)
 create mode 100644 src/main/java/com/c2kernel/utils/Resource.java

(limited to 'src/main/java/com/c2kernel/utils/Resource.java')

diff --git a/src/main/java/com/c2kernel/utils/Resource.java b/src/main/java/com/c2kernel/utils/Resource.java
new file mode 100644
index 0000000..10228da
--- /dev/null
+++ b/src/main/java/com/c2kernel/utils/Resource.java
@@ -0,0 +1,166 @@
+package com.c2kernel.utils;
+
+//Java
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.HashMap;
+import java.util.Hashtable;
+
+import javax.swing.ImageIcon;
+
+import com.c2kernel.common.ObjectNotFoundException;
+
+/**************************************************************************
+ *
+ * @author $Author: abranson $ $Date: 2005/10/05 07:39:36 $
+ * @version $Revision: 1.71 $
+ **************************************************************************/
+public class Resource {
+    static private Hashtable<String, String> txtCache = new Hashtable<String, String>();
+    static private Hashtable<String, ImageIcon> imgCache = new Hashtable<String, ImageIcon>();
+    static private URL baseURL = getURLorResURL("com/c2kernel/utils/resources/");
+    static private HashMap<String, URL> moduleBaseURLs = new HashMap<String, URL>();
+    static public final ImageIcon nullImg = new ImageIcon(new byte[] { 0 });
+
+    public static URL getKernelBaseURL() {
+        return baseURL;
+    }
+
+    public static URL getKernelResourceURL(String resName) throws MalformedURLException {
+        return new URL(baseURL, resName);
+    }
+
+    public static void addModuleBaseURL(String ns, URL newBaseURL) {
+        moduleBaseURLs.put(ns, newBaseURL);
+        Logger.msg("Adding resource URL for "+ns+": "+newBaseURL.toString());
+    }
+
+    public static void addModuleBaseURL(String ns, String newBaseURL) {
+    	addModuleBaseURL(ns, getURLorResURL(newBaseURL));
+    }
+
+    public static URL getModuleBaseURL(String ns) {
+        return moduleBaseURLs.get(ns);
+    }
+    
+    public static HashMap<String, URL> getModuleBaseURLs() {
+        return moduleBaseURLs;
+    }
+
+    static public URL getModuleResourceURL(String ns, String resName) throws MalformedURLException {
+        return new URL(moduleBaseURLs.get(ns), resName);
+    }
+
+    private static URL getURLorResURL(String newURL) {
+        URL result;
+        try {
+            result = new URL(newURL);
+        } catch (java.net.MalformedURLException ex) {
+            //it is assumed that a 'wrong' URL denotes a directory
+            //of files resolvable from the CLASSPATH
+            result = Resource.class.getClassLoader().getResource(newURL);
+        }
+        return result;
+    }
+    /**************************************************************************
+     * Gets any text resource files
+     **************************************************************************/
+    
+    static public String findTextResource(String resName) {
+        try {
+        	for (String ns : getModuleBaseURLs().keySet()) {
+        		try {
+        			return getTextResource(ns, resName);
+        		} catch (ObjectNotFoundException ex) { }
+			}
+            return getTextResource(null, resName);
+        } catch (ObjectNotFoundException ex) {
+            Logger.warning("Text resource '"+resName+"' not found.");
+            return null;
+        }
+    }
+    
+    static public String getTextResource(String ns, String resName) throws ObjectNotFoundException
+    //        throws IOException
+    {
+        Logger.msg(8, "Resource::getTextResource() - Getting resource: " + resName);
+
+        if (txtCache.containsKey(ns+'/'+resName)) {
+            return txtCache.get(ns+'/'+resName);
+        }
+
+        try {
+
+            String newRes = null;
+            URL loc;
+            
+            if (ns == null) // kernel
+                loc = getKernelResourceURL(resName);
+            else
+            	loc = getModuleResourceURL(ns, resName);
+            newRes = FileStringUtility.url2String(loc);
+            txtCache.put(ns+'/'+resName, newRes);
+            return newRes;
+        } catch (Exception e) {
+            throw new ObjectNotFoundException(e.getMessage(),null);
+        }
+    }
+    /**
+     * Gets an image from the resource directories
+     *
+     * @param resName - filename after resources/images
+     * @return
+     */
+    static public ImageIcon findImage(String resName) {
+        try {
+        	for (String ns : getModuleBaseURLs().keySet()) {
+        		try {
+        			return getImage(ns, resName);
+        		} catch (ObjectNotFoundException ex) { }
+			}
+            return getImage(null, resName);
+        } catch (ObjectNotFoundException ex) {
+            Logger.warning("Image '"+resName+"' not found. Using null icon");
+            return nullImg;
+        }
+    }
+
+    static public ImageIcon getImage(String ns, String resName) throws ObjectNotFoundException {
+        if (resName == null)
+            return nullImg;
+
+        if (imgCache.containsKey(ns+'/'+resName)) {
+            return imgCache.get(ns+'/'+resName);
+        }
+
+        URL imgLocation = null;
+        if (ns == null) 
+        	try {
+        		imgLocation = getKernelResourceURL("images/"+resName);
+        	} catch (MalformedURLException ex) { }
+        else
+        	try {
+        		imgLocation = getModuleResourceURL(ns, "images/"+resName);
+        	} catch (MalformedURLException ex) { }
+        
+        if (imgLocation!= null) {
+        	ImageIcon newImg = new ImageIcon(imgLocation);
+
+        	if (newImg.getIconHeight() > -1) {
+        		imgCache.put(ns+'/'+resName, newImg);
+                Logger.msg(0, "Loaded "+resName+" "+newImg.getIconWidth()+"x"+newImg.getIconHeight());
+                return newImg;
+        	}
+        }
+        throw new ObjectNotFoundException();
+    }
+
+    static public String getKernelVersion() {
+    	try {
+			return FileStringUtility.url2String(getKernelResourceURL("textFiles/version.txt"));
+    	} catch (Exception ex) {
+    		return "No version info found";
+    	}
+
+    }
+}
-- 
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