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package org.glassfish.jersey.examples.jsonp.service;
import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.concurrent.atomic.AtomicInteger;
import javax.json.JsonObject;
/**
* Storage of documents.
*
* @author Michal Gajdos
*/
public final class DocumentStorage {
private static final Map<Integer, JsonObject> storage = new LinkedHashMap<>();
private static final AtomicInteger counter = new AtomicInteger(0);
public static int store(final JsonObject document) {
final int id = counter.addAndGet(1);
storage.put(id, document);
return id;
}
public static JsonObject get(final int id) {
return storage.get(id);
}
public static Collection<JsonObject> getAll() {
return storage.values();
}
public static JsonObject remove(final int id) {
return storage.remove(id);
}
public static void removeAll() {
storage.clear();
}
/**
* Prevent initialization.
*/
private DocumentStorage() {
}
}