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JSR 354 provides an API for representing, transporting, and performing comprehensive calculations with
Money and Currency.
This module implements JSR 354.
/**
* Copyright (c) 2012, 2015, Credit Suisse (Anatole Tresch), Werner Keil and others by the @author tag.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package org.javamoney.moneta.function;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import javax.money.CurrencyUnit;
/**
* This statisticsMap is decorator of HashMap that returns an empty Summary when there
* isn't currency in get's method
*
* @author otaviojava
*/
class MonetarySummaryMap implements
Map {
private final Map statisticsMap = new HashMap<>();
@Override
public int size() {
return statisticsMap.size();
}
@Override
public boolean isEmpty() {
return statisticsMap.isEmpty();
}
@Override
public boolean containsKey(Object key) {
return statisticsMap.containsKey(key);
}
@Override
public boolean containsValue(Object value) {
return statisticsMap.containsValue(value);
}
@Override
public MonetarySummaryStatistics get(Object key) {
if (CurrencyUnit.class.isInstance(key)) {
CurrencyUnit unit = CurrencyUnit.class.cast(key);
return statisticsMap.getOrDefault(unit, new DefaultMonetarySummaryStatistics(
unit));
}
return statisticsMap.get(key);
}
@Override
public MonetarySummaryStatistics put(CurrencyUnit key,
MonetarySummaryStatistics value) {
return statisticsMap.put(key, value);
}
@Override
public MonetarySummaryStatistics remove(Object key) {
return statisticsMap.remove(key);
}
@Override
public void putAll(
Map m) {
statisticsMap.putAll(m);
}
@Override
public void clear() {
statisticsMap.clear();
}
@Override
public Set keySet() {
return statisticsMap.keySet();
}
@Override
public Collection values() {
return statisticsMap.values();
}
@Override
public Set> entrySet() {
return statisticsMap.entrySet();
}
@Override
public boolean equals(Object obj) {
if (MonetarySummaryMap.class.isInstance(obj)) {
MonetarySummaryMap other = MonetarySummaryMap.class.cast(obj);
return statisticsMap.equals(other.statisticsMap);
}
return false;
}
@Override
public MonetarySummaryStatistics putIfAbsent(CurrencyUnit key,
MonetarySummaryStatistics value) {
MonetarySummaryStatistics v = statisticsMap.get(key);
if (Objects.isNull(v)) {
v = put(key, value);
}
return v;
}
@Override
public int hashCode() {
return statisticsMap.hashCode();
}
@Override
public String toString() {
return "MonetarySummaryMap: " + statisticsMap.toString();
}
}