Mega Code Archive
This Map stores its keys as strings in upper case, null and duplicate keys are not allowed
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//package com.customwars.client.tools;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
/**
* This Map stores it's keys as strings in upper case, null and duplicate keys are not allowed
* Attempting to add a duplicate object in this map results in an IllegalArgumentException
* Null values are not allowed
*
* @param <T> The type of the object stored in this UCaseMap
*/
public class UCaseMap<T> implements Map<String, T> {
private final Map<String, T> cache;
public UCaseMap() {
cache = new HashMap<String, T>();
}
public UCaseMap(int initialCapacity) {
cache = new HashMap<String, T>(initialCapacity);
}
public boolean containsKey(Object key) {
if (key != null) {
String s = (String) key;
return cache.containsKey(s.toUpperCase());
} else {
return false;
}
}
public boolean containsValue(Object value) {
return cache.containsValue(value);
}
public T get(Object objKey) {
if (objKey == null) {
throw new IllegalArgumentException("objKey cannot be null");
}
String strKey = (String) objKey;
String uCaseKey = strKey.toUpperCase();
if (cache.containsKey(uCaseKey)) {
return cache.get(uCaseKey);
} else {
throw new IllegalArgumentException("No obj found for '" + uCaseKey + "' available keys " + cache.keySet());
}
}
public T put(String key, T value) {
String uCaseKey = key.toUpperCase();
if (value == null) {
return get(key);
}
if (!cache.containsKey(uCaseKey)) {
return cache.put(uCaseKey, value);
} else {
throw new IllegalArgumentException("key " + uCaseKey + " is already cached");
}
}
public T remove(Object key) {
return cache.remove(key);
}
public void putAll(Map<? extends String, ? extends T> map) {
cache.putAll(map);
}
public int size() {
return cache.size();
}
public boolean isEmpty() {
return cache.isEmpty();
}
public void clear() {
cache.clear();
}
public Set<String> keySet() {
return cache.keySet();
}
public Collection<T> values() {
return cache.values();
}
public Set<Entry<String, T>> entrySet() {
return cache.entrySet();
}
@Override
public String toString() {
return cache.toString();
}
}
]]>