diff options
Diffstat (limited to 'source/com/c2kernel/utils/Resource.java')
| -rwxr-xr-x | source/com/c2kernel/utils/Resource.java | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/source/com/c2kernel/utils/Resource.java b/source/com/c2kernel/utils/Resource.java new file mode 100755 index 0000000..7a47625 --- /dev/null +++ b/source/com/c2kernel/utils/Resource.java @@ -0,0 +1,187 @@ +package com.c2kernel.utils;
+
+//Java
+import java.net.MalformedURLException;
+import java.net.URL;
+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 txtCache = new Hashtable();
+ static private Hashtable imgCache = new Hashtable();
+ static private URL baseURL = null;
+ static private URL domainBaseURL = null;
+ static private URL importURL = null;
+ static public ImageIcon nullImg = new ImageIcon(new byte[] { 0 });
+ static {
+ setKernelBaseURL("com/c2kernel/utils/resources/");
+ }
+
+ /*
+ * Kernel Resource URL section
+ */
+ public static void setKernelBaseURL(String newBaseURL) {
+ baseURL = getURLorResURL(newBaseURL);
+ }
+
+ public static void setKernelBaseURL(URL newBaseURL) {
+ baseURL = newBaseURL;
+ }
+
+ public static URL getKernelBaseURL() {
+ return baseURL;
+ }
+
+ static public URL getKernelResourceURL(String resName) throws MalformedURLException {
+ return new URL(baseURL, resName);
+ }
+ /*
+ * Domain Resource URL section
+ */
+
+ public static void setDomainBaseURL(URL newBaseURL) {
+ domainBaseURL = newBaseURL;
+ }
+
+ public static void setDomainBaseURL(String newBaseURL) {
+ domainBaseURL = getURLorResURL(newBaseURL);
+ }
+
+ public static URL getDomainBaseURL() {
+ return domainBaseURL;
+ }
+
+ static public URL getDomainResourceURL(String resName) throws MalformedURLException {
+ return new URL(domainBaseURL, 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 getTextResource(String resName)
+ // throws IOException
+ {
+ Logger.msg(8, "Resource::getTextResource() - Getting resource: " + resName);
+
+ if (txtCache.containsKey(resName)) {
+ return (String)txtCache.get(resName);
+ }
+
+ try {
+
+ String newRes = null;
+ try {
+ newRes = FileStringUtility.url2String(getDomainResourceURL(resName));
+ } catch (Exception ex) { } // no domain base
+
+ if (newRes == null || newRes.length() == 0) { // not found in domain
+ newRes = FileStringUtility.url2String(getKernelResourceURL(resName));
+ }
+ txtCache.put(resName, newRes);
+ return newRes;
+ } catch (Exception e) {
+ return null;
+ }
+ }
+ /**
+ * Gets an image from the resource directories
+ *
+ * @param resName - filename after resources/images
+ * @return
+ */
+ static public ImageIcon getImageResource(String resName) {
+ try {
+ return getImage(resName);
+ } catch (ObjectNotFoundException ex) {
+ Logger.error("Image "+resName+" not found. Using null icon");
+ return nullImg;
+ }
+ }
+
+ static public ImageIcon getImage(String resName) throws ObjectNotFoundException {
+ if (resName == null)
+ return nullImg;
+
+ if (imgCache.containsKey(resName)) {
+ return (ImageIcon)imgCache.get(resName);
+ }
+
+ URL imgLocation = null;
+ ImageIcon newImg = null;
+ // try domain resources first
+ if (domainBaseURL != null) {
+ try {
+ imgLocation = new URL(domainBaseURL + "images/" + resName.toLowerCase());
+ newImg = new ImageIcon(imgLocation);
+ } catch (MalformedURLException e) { }
+ }
+
+ // try kernel resources next
+ if (newImg == null || newImg.getIconHeight() == -1) {
+ try {
+ imgLocation = new URL(baseURL + "images/" + resName.toLowerCase());
+ newImg = new ImageIcon(imgLocation);
+ } catch (MalformedURLException e) { }
+ }
+
+ // else return null image
+ if (newImg == null || newImg.getIconHeight() == -1) {
+ throw new ObjectNotFoundException();
+ }
+
+ else imgCache.put(resName, newImg);
+ Logger.msg(7, "Loaded "+resName+" "+newImg.getIconWidth()+"x"+newImg.getIconHeight());
+ return newImg;
+ }
+
+
+ /**
+ * Retrieves the stored import URL
+ * @return
+ */
+ public static URL getImportURL() {
+ return importURL;
+ }
+
+ /**
+ * @param url
+ */
+ public static void setImportURL(URL url) {
+ importURL = url;
+ }
+ static public String getDomainVersion() {
+ try {
+ return FileStringUtility.url2String(getDomainResourceURL("version.txt"));
+ } catch (Exception ex) {
+ return "Domain application version not found";
+ }
+ }
+
+ static public String getKernelVersion() {
+ try {
+ return FileStringUtility.url2String(getKernelResourceURL("textFiles/version.txt"));
+ } catch (Exception ex) {
+ return "No version info found";
+ }
+
+ }
+}
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