105 lines
2.2 KiB
Java
105 lines
2.2 KiB
Java
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package net.sourceforge.filebot;
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import java.awt.Image;
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import java.io.IOException;
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import java.net.URL;
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import javax.imageio.ImageIO;
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import javax.swing.Icon;
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import javax.swing.ImageIcon;
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import net.sf.ehcache.Cache;
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import net.sf.ehcache.CacheManager;
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import net.sf.ehcache.Element;
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public final class ResourceManager {
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private static final Cache cache = CacheManager.getInstance().getCache("resource");
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public static Icon getIcon(String name) {
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return getIcon(name, null);
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}
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public static Icon getIcon(String name, String def) {
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Icon icon = probeCache(name, Icon.class);
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if (icon == null) {
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URL resource = getImageResource(name, def);
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if (resource != null) {
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icon = populateCache(name, Icon.class, new ImageIcon(resource));
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}
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}
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return icon;
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}
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public static Icon getFlagIcon(String languageCode) {
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return getIcon(String.format("flags/%s", languageCode));
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}
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public static Image getImage(String name) {
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try {
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return ImageIO.read(getImageResource(name));
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} catch (IOException e) {
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throw new RuntimeException(e);
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}
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}
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/**
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* Get the URL of an image resource in this jar. Image must be located in <code>resources/</code> and the file type
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* is assumed to be png.
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*
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* @param name simple name of the resource (without extension)
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* @return URL of the resource or null if resource does not exist
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*/
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private static URL getImageResource(String name) {
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return ResourceManager.class.getResource("resources/" + name + ".png");
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}
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private static URL getImageResource(String name, String def) {
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URL resource = getImageResource(name);
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if (resource == null)
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resource = getImageResource(def);
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return resource;
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}
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private static <T> T probeCache(String name, Class<T> type) {
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Element entry = cache.get(type.getName() + ":" + name);
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if (entry != null) {
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return type.cast(entry.getObjectValue());
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}
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return null;
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}
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private static <T> T populateCache(String name, Class<? super T> type, T value) {
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cache.put(new Element(type.getName() + ":" + name, value));
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return value;
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}
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/**
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* Dummy constructor to prevent instantiation.
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*/
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private ResourceManager() {
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throw new UnsupportedOperationException();
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}
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}
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