capital.scalable.restdocs.jackson.BigDecimalSerializer.java Source code

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Here is the source code for capital.scalable.restdocs.jackson.BigDecimalSerializer.java

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/*
 * Copyright 2016 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 capital.scalable.restdocs.jackson;

import java.io.IOException;
import java.math.BigDecimal;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.util.Locale;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.jsonFormatVisitors.JsonFormatVisitorWrapper;
import com.fasterxml.jackson.databind.ser.std.StdScalarSerializer;

/**
 * Serializer for an external type that cannot be extended.
 */
public class BigDecimalSerializer extends StdScalarSerializer<BigDecimal> {

    public BigDecimalSerializer() {
        super(BigDecimal.class, false);
    }

    @Override
    public void serialize(BigDecimal value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
        jgen.writeNumber(englishDecimalFormat().format(value));
    }

    @Override
    public void acceptJsonFormatVisitor(JsonFormatVisitorWrapper visitor, JavaType typeHint)
            throws JsonMappingException {
        if (visitor != null) {
            visitor.expectNumberFormat(typeHint);
        }
    }

    private DecimalFormat englishDecimalFormat() {
        DecimalFormat df = (DecimalFormat) NumberFormat.getNumberInstance(Locale.ENGLISH);
        df.applyPattern("#,##0.00");
        return df;
    }
}