/*
* Copyright 2011-2013 the original author or authors.
*
* 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 de.olivergierke.whoops.options;
import java.math.BigDecimal;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.plugin.core.PluginRegistry;
import org.springframework.stereotype.Component;
import org.springframework.util.Assert;
import de.olivergierke.whoops.core.Instrument;
import de.olivergierke.whoops.core.TransactionFeeProvider;
/**
* {@link TransactionFeeProvider} implementation for {@link Option}s. Uses a {@link PluginRegistry} of
* {@link TransactionFeeProvider}s in turn to delegate fee calculation for the {@link Option}'s underlying.
*
* @author Oliver Gierke
*/
@Component
class OptionTransactionFeeProvider implements TransactionFeeProvider {
private final PluginRegistry<TransactionFeeProvider, Instrument> feeProviders;
private final BigDecimal multiplier = new BigDecimal(1.2);
/**
* Creates a new {@link OptionTransactionFeeProvider} using the given {@link TransactionFeeProvider}s.
*
* @param feeProviders must not be {@literal null}.
*/
@Autowired
public OptionTransactionFeeProvider(PluginRegistry<TransactionFeeProvider, Instrument> feeProviders) {
Assert.notNull(feeProviders, "FeeProviders must not be null!");
this.feeProviders = feeProviders;
}
/*
* (non-Javadoc)
* @see org.springframework.plugin.core.Plugin#supports(java.lang.Object)
*/
public boolean supports(Instrument delimiter) {
return delimiter instanceof Option;
}
/*
* (non-Javadoc)
* @see de.olivergierke.whoops.core.TransactionFeeProvider#getTransactionFee(de.olivergierke.whoops.core.Instrument)
*/
public BigDecimal getTransactionFee(Instrument instrument) {
Option option = (Option) instrument;
Instrument underlying = option.getUnderlying();
TransactionFeeProvider provider = feeProviders.getPluginFor(underlying);
BigDecimal fee = provider.getTransactionFee(underlying);
return fee.multiply(multiplier);
}
}