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package bjc.utils.esodata;
import java.util.AbstractMap;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
public class MapSet<KeyType, ValueType> extends AbstractMap<KeyType, ValueType> {
private Map<String, Map<KeyType, ValueType>> backing;
private Map<KeyType, ValueType> currentMap = null;
public MapSet() {
backing = new HashMap<>();
}
public MapSet(Map<String, Map<KeyType, ValueType>> back) {
backing = back;
}
public void addMap(String key, Map<KeyType, ValueType> map) {
backing.put(key, map);
}
public void clearMap() {
currentMap = null;
backing.clear();
}
public boolean containsMap(String key) {
return backing.containsKey(key);
}
public Map<KeyType, ValueType> getMap(String key) {
return backing.get(key);
}
public Set<Map.Entry<String, Map<KeyType, ValueType>>> getMapEntries() {
return backing.entrySet();
}
public Set<String> getMapKeys() {
return backing.keySet();
}
public Collection<Map<KeyType, ValueType>> getMapValues() {
return backing.values();
}
public boolean setMap(String key) {
if (!backing.containsKey(key)) return false;
currentMap = backing.get(key);
return true;
}
public void setCreateMap(String key) {
if (!backing.containsKey(key)) {
currentMap = new HashMap<>();
backing.put(key, currentMap);
return;
}
currentMap = backing.get(key);
}
public void setPutMap(String key, Map<KeyType, ValueType> map) {
if (!backing.containsKey(key)) {
currentMap = map;
backing.put(key, map);
return;
}
currentMap = backing.get(key);
}
@Override
public Set<Map.Entry<KeyType, ValueType>> entrySet() {
if (currentMap == null) throw new NullPointerException("Current map is not set");
return currentMap.entrySet();
}
@Override
public ValueType put(KeyType key, ValueType value) {
if (currentMap == null) throw new NullPointerException("Current map is not set");
return currentMap.put(key, value);
}
}
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