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JacksonJsonWriter.java
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JacksonJsonWriter.java
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/*
* JB4JSON-LD Jackson
* Copyright (C) 2023 Czech Technical University in Prague
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3.0 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library.
*/
package cz.cvut.kbss.jsonld.jackson.serialization;
import com.fasterxml.jackson.core.JsonGenerator;
import java.io.IOException;
import java.math.BigDecimal;
import java.math.BigInteger;
/**
* Outputs JSON using Jackson.
*/
class JacksonJsonWriter implements cz.cvut.kbss.jsonld.serialization.JsonGenerator {
private final JsonGenerator jsonGenerator;
JacksonJsonWriter(JsonGenerator jsonGenerator) {
this.jsonGenerator = jsonGenerator;
}
@Override
public void writeFieldName(String s) throws IOException {
jsonGenerator.writeFieldName(s);
}
@Override
public void writeObjectStart() throws IOException {
jsonGenerator.writeStartObject();
}
@Override
public void writeObjectEnd() throws IOException {
jsonGenerator.writeEndObject();
}
@Override
public void writeArrayStart() throws IOException {
jsonGenerator.writeStartArray();
}
@Override
public void writeArrayEnd() throws IOException {
jsonGenerator.writeEndArray();
}
@Override
public void writeNumber(Number number) throws IOException {
if (number instanceof Integer) {
jsonGenerator.writeNumber(number.intValue());
} else if (number instanceof Long) {
jsonGenerator.writeNumber(number.longValue());
} else if (number instanceof Float) {
jsonGenerator.writeNumber(number.floatValue());
} else if (number instanceof Double) {
jsonGenerator.writeNumber(number.doubleValue());
} else if (number instanceof BigInteger) {
jsonGenerator.writeNumber((BigInteger) number);
} else if (number instanceof BigDecimal) {
jsonGenerator.writeNumber((BigDecimal) number);
} else if (number instanceof Short) {
jsonGenerator.writeNumber(number.shortValue());
} else if (number instanceof Byte) {
jsonGenerator.writeNumber(number.byteValue());
} else {
throw new IllegalArgumentException("Unable to write number " + number + " of type " + number.getClass());
}
}
@Override
public void writeBoolean(boolean b) throws IOException {
jsonGenerator.writeBoolean(b);
}
@Override
public void writeNull() throws IOException {
jsonGenerator.writeNull();
}
@Override
public void writeString(String s) throws IOException {
jsonGenerator.writeString(s);
}
}