IndependentModeler/src/cz/cvut/promod/resources/Resources.java

   1 package cz.cvut.promod.resources;
   2
   3 import org.apache.log4j.Logger;
   4
   5 import javax.swing.*;
   6 import java.util.Map;
   7 import java.util.HashMap;
   8 import java.net.URL;
   9 import java.io.File;
  10
  11 /**
  12  * ProMod, master thesis project
  13  * User: Petr Zverina, petr.zverina@gmail.com
  14  * Date: 22:35:06, 7.12.2009
  15  */
  16
  17 /**
  18  * Resources class is used to load & store all necessary resources like likes, etc.
  19  */
  20 public class Resources {
  21
  22     private static final Logger LOG = Logger.getLogger(Resources.class);
  23
  24     public static final String NAVIGATION = "navigation/";
  25     public static final String CONFIG = "config/";
  26     public static final String MODELER = "modeler/";
  27
  28     public final static String PLUGINS_XSD_FILE = "plugins.xsd";
  29     public final static String PROJECT_XSD_FILE = "project.xsd";
  30
  31     public static final String ICONS = "icons/";
  32
  33     public static final String DIAGRAM_ICON = "projectDiagram.png";
  34     public static final String PROJECT_ICON = "projectIcon.png";
  35     public static final String SUBFOLDER_ICON = "subfolderIcon.png";
  36     public static final String EXPAND_ALL_ICON = "expandAll.png";
  37     public static final String COLLAPSE_ICON = "collapse.png";
  38     public static final String DIAGRAM_ADD_ICON = "pageAdd.png";
  39     public static final String FOLDER_ADD_ICON = "folderAdd.png";
  40
  41     public static final String DELETE_ICON = "delete.png";
  42     public static final String SAVE_ALL_ICON = "saveAll.png";
  43     public static final String NEW_PROJECT_ICON = "newProject.png";
  44     public static final String OPEN_ICON = "open.png";
  45     public static final String RENAME_ICON = "rename.png";
  46
  47     private final static Map<String, ImageIcon> icons = new HashMap<String, ImageIcon>();
  48     private final static Map<String, File> configFiles = new HashMap<String, File>();
  49
  50
  51     /**
  52      * Returns the icon that has been already loaded or tries to load this icon.
  53      *
  54      * @param resourceName is the full name of required resource (= icon)
  55      * @return the required icon if no error(s) occurred, null otherwise
  56      */
  57     public static ImageIcon getIcon(final String resourceName){
  58         ImageIcon imageIcon;
  59
  60         if(icons.containsKey(resourceName)){
  61             imageIcon = icons.get(resourceName);
  62
  63         } else {
  64             imageIcon = loadIcon(resourceName);
  65
  66             if(imageIcon != null){
  67                 icons.put(resourceName, imageIcon);
  68             }
  69         }
  70
  71         return imageIcon;
  72     }
  73
  74     /**
  75      * Loads the icon.
  76      *
  77      * @param resourceName is the full name of the icon
  78      * @return the required icon or null if the there is no resource with given resourceName
  79      */
  80     private static ImageIcon loadIcon(final String resourceName) {
  81         final URL systemResource = ClassLoader.getSystemResource(resourceName);
  82
  83         if(systemResource == null){
  84             LOG.error("Resource " + resourceName + " couldn't be found.");
  85             return null;
  86         }
  87
  88         return new ImageIcon(systemResource);
  89     }
  90
  91     /**
  92      * Returns the resource that has been already loaded or tries to load this icon.
  93      *
  94      * @param resourceName is the full name of required resource
  95      * @return the required icon if no error(s) occurred, null otherwise
  96      */
  97     public static File getConfigFile(final String resourceName){
  98         File configFile;
  99
 100         if(icons.containsKey(resourceName)){
 101             configFile = configFiles.get(resourceName);
 102
 103         } else {
 104             configFile = loadConfigFile(resourceName);
 105
 106             if(configFile != null){
 107                 configFiles.put(resourceName, configFile);
 108             }
 109         }
 110
 111         return configFile;
 112     }
 113
 114     /**
 115      * Loads the config resources.
 116      *
 117      * @param resourceName is the full name of the resource
 118      * @return the required resource or null if the there is no resource with given resourceName
 119      */
 120     private static File loadConfigFile(final String resourceName) {
 121         final URL systemResource = ClassLoader.getSystemResource(resourceName);
 122
 123         if(systemResource == null){
 124             LOG.error("Resource " + resourceName + " couldn't be found.");
 125             return null;
 126         }
 127
 128         return new File(systemResource.getFile());
 129     }
 130
 131 }
 132