org.javamoney.moneta.format.MonetaryAmountDecimalFormat Maven / Gradle / Ivy
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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.format;
import org.javamoney.moneta.function.MonetaryAmountProducer;
import javax.money.CurrencyUnit;
import javax.money.Monetary;
import javax.money.MonetaryAmount;
import javax.money.format.AmountFormatContext;
import javax.money.format.AmountFormatContextBuilder;
import javax.money.format.MonetaryAmountFormat;
import javax.money.format.MonetaryParseException;
import java.io.IOException;
import java.math.BigDecimal;
import java.text.DecimalFormat;
import java.util.Objects;
import java.util.Optional;
import static java.util.Objects.requireNonNull;
/**
* The implementation that uses the {@link DecimalFormat} as formatter.
*
* @author Otavio Santana
* @since 1.0.1
*/
class MonetaryAmountDecimalFormat implements MonetaryAmountFormat {
static final String STYLE = "MonetaryAmountFormatSymbols";
private static final AmountFormatContext CONTEXT = AmountFormatContextBuilder.of(STYLE).build();
private final DecimalFormat decimalFormat;
private final MonetaryAmountProducer producer;
private final CurrencyUnit currencyUnit;
public MonetaryAmountDecimalFormat(DecimalFormat decimalFormat, MonetaryAmountProducer producer, CurrencyUnit currencyUnit) {
this.decimalFormat = decimalFormat;
this.producer = producer;
this.currencyUnit = currencyUnit;
}
DecimalFormat getDecimalFormat() {
return decimalFormat;
}
MonetaryAmountProducer getProducer() {
return producer;
}
CurrencyUnit getCurrencyUnit() {
return currencyUnit;
}
@Override
public AmountFormatContext getContext() {
return CONTEXT;
}
@Override
public void print(Appendable appendable, MonetaryAmount amount) throws IOException {
requireNonNull(appendable).append(queryFrom(amount));
}
@Override
public MonetaryAmount parse(CharSequence text) throws MonetaryParseException {
Objects.requireNonNull(text);
try {
Number number = decimalFormat.parse(text.toString());
return producer.create(currencyUnit, number);
}catch (Exception exception) {
throw new MonetaryParseException(exception.getMessage(), text, 0);
}
}
@Override
public String queryFrom(MonetaryAmount amount) {
return Optional
.ofNullable(amount)
.map(m -> decimalFormat.format(amount.getNumber().numberValue(
BigDecimal.class))).orElse("null");
}
@Override
public int hashCode() {
return Objects.hash(decimalFormat, currencyUnit, producer);
}
@Override
public boolean equals(Object obj) {
if(obj == this) {
return true;
}
if (MonetaryAmountDecimalFormat.class.isInstance(obj)) {
MonetaryAmountDecimalFormat other = MonetaryAmountDecimalFormat.class.cast(obj);
return Objects.equals(other.decimalFormat, decimalFormat) && Objects.equals(other.producer, producer)
&& Objects.equals(other.currencyUnit, currencyUnit);
}
return false;
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append(MonetaryAmountDecimalFormat.class.getName()).append('{')
.append(" decimalFormat: ").append(decimalFormat).append(',')
.append(" producer: ").append(producer).append(',')
.append(" currencyUnit: ").append(currencyUnit).append('}');
return sb.toString();
}
}