org.javamoney.moneta.internal.format.LiteralToken Maven / Gradle / Ivy
/**
* Copyright (c) 2012, 2014, 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.internal.format;
import java.io.IOException;
import java.io.Serializable;
import javax.money.MonetaryAmount;
import javax.money.format.MonetaryParseException;
/**
* {@link FormatToken} which adds an arbitrary literal constant value to the
* output.
*
* This class is thread safe, immutable and serializable.
*
* @author Anatole Tresch
* @author Werner Keil
*/
final class LiteralToken implements FormatToken, Serializable {
/**
* serialVersionUID.
*/
private static final long serialVersionUID = -2528757575867480018L;
/**
* The literal part.
*/
private final String token;
/**
* Creates a new {@link LiteralToken}.
*
* @param token The literal token part.
*/
public LiteralToken(String token) {
this.token = token;
if(token==null) {
throw new IllegalArgumentException("Token is required.");
}
}
/**
* Parses the literal from the current {@link ParseContext}.
*
* @see FormatToken#parse(ParseContext)
*/
@Override
public void parse(ParseContext context)
throws MonetaryParseException {
if (!context.consume(token)) {
throw new MonetaryParseException(context.getOriginalInput(),
context.getErrorIndex());
}
}
/**
* Prints the amount to the {@link Appendable} given.
*
* @see FormatToken#print(Appendable, javax.money.MonetaryAmount)
*/
@Override
public void print(Appendable appendable, MonetaryAmount amount)
throws IOException {
appendable.append(this.token);
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return "LiteralToken [token=" + token + ']';
}
}