package railo.runtime.cache.legacy;
import java.io.IOException;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import org.apache.oro.text.regex.MalformedPatternException;
import railo.commons.io.res.Resource;
import railo.commons.io.res.util.WildCardFilter;
import railo.runtime.converter.JavaConverter;
public class MetaData implements Serializable {
private static Map<String,MetaData> instances=new HashMap<String,MetaData>();
private HashMap<String,String> data=new HashMap<String,String>();
private Resource file;
private MetaData(Resource file) {
this.file=file;
data=new HashMap<String,String>();
}
public MetaData(Resource file,HashMap<String,String> data) {
this.file=file;
this.data=data;
}
public static MetaData getInstance(Resource directory) {
MetaData instance=instances.get(directory.getAbsolutePath());
if(instance==null) {
Resource file = directory.getRealResource("meta");
if(file.exists()){
try {
instance= new MetaData(file,(HashMap)JavaConverter.deserialize(file));
}
catch (Throwable t) {}
}
if(instance==null) instance=new MetaData(file);
instances.put(directory.getAbsolutePath(), instance);
}
return instance;
}
public synchronized void add(String name, String raw) throws IOException {
synchronized (data) {
data.put(name, raw);
JavaConverter.serialize(data, file);
}
}
public synchronized List<String> get(String wildcard) throws MalformedPatternException, IOException {
synchronized (data) {
List<String> list=new ArrayList<String>();
Iterator<Entry<String, String>> it = data.entrySet().iterator();
WildCardFilter filter=new WildCardFilter( wildcard);
Entry<String, String> entry;
String value;
while(it.hasNext()) {
entry = it.next();
value= entry.getValue();
if(filter.accept(value)){
list.add(entry.getKey());
it.remove();
}
}
if(list.size()>0)JavaConverter.serialize(data, file);
return list;
}
}
}