99 lines
2.3 KiB
Java
99 lines
2.3 KiB
Java
package net.filebot;
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import java.io.Serializable;
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import java.util.Arrays;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import net.sf.ehcache.CacheManager;
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import net.sf.ehcache.Element;
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public class Cache {
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public static Cache getCache(String name) {
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return new Cache(CacheManager.getInstance().getCache(name));
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}
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private final net.sf.ehcache.Cache cache;
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protected Cache(net.sf.ehcache.Cache cache) {
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this.cache = cache;
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}
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public void put(Object key, Object value) {
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try {
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cache.put(new Element(key, value));
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} catch (Throwable e) {
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Logger.getLogger(Cache.class.getName()).log(Level.WARNING, e.getMessage());
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remove(key); // fail-safe
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}
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}
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public Object get(Object key) {
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return get(key, Object.class);
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}
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public <T> T get(Object key, Class<T> type) {
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try {
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Element element = cache.get(key);
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if (element != null && key.equals(element.getKey())) {
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return type.cast(element.getValue());
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}
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} catch (Exception e) {
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Logger.getLogger(Cache.class.getName()).log(Level.WARNING, e.getMessage());
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remove(key); // fail-safe
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}
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return null;
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}
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public void remove(Object key) {
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try {
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cache.remove(key);
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} catch (Exception e1) {
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Logger.getLogger(Cache.class.getName()).log(Level.SEVERE, e1.getMessage());
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try {
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Logger.getLogger(Cache.class.getName()).log(Level.INFO, "Cached data has become invalid: Clearing cache now");
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cache.removeAll();
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} catch (Exception e2) {
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Logger.getLogger(Cache.class.getName()).log(Level.SEVERE, e2.getMessage());
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try {
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Logger.getLogger(Cache.class.getName()).log(Level.INFO, "Cache has become invalid: Reset all caches");
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cache.getCacheManager().clearAll();
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} catch (Exception e3) {
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Logger.getLogger(Cache.class.getName()).log(Level.SEVERE, e3.getMessage());
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}
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}
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}
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}
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public static class Key implements Serializable {
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protected Object[] fields;
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public Key(Object... fields) {
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this.fields = fields;
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}
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@Override
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public int hashCode() {
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return Arrays.hashCode(fields);
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}
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@Override
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public boolean equals(Object other) {
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if (other instanceof Key) {
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return Arrays.equals(this.fields, ((Key) other).fields);
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}
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return false;
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}
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@Override
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public String toString() {
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return Arrays.toString(fields);
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}
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}
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}
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