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package com.fasterxml.jackson.jr.ob.impl;
import java.io.IOException;
import com.fasterxml.jackson.core.*;
import com.fasterxml.jackson.jr.ob.JSONObjectException;
import com.fasterxml.jackson.jr.ob.api.CollectionBuilder;
import com.fasterxml.jackson.jr.ob.api.ValueReader;
/**
* Reader for typed Array values.
*/
public class ArrayReader extends ValueReader
{
protected final Class> _elementType;
protected final ValueReader _valueReader;
public ArrayReader(Class> arrayType, Class> elementType, ValueReader vr) {
super(arrayType);
_elementType = elementType;
_valueReader = vr;
}
@Override
public Object readNext(JSONReader r, JsonParser p) throws IOException {
if (p.nextToken() != JsonToken.START_ARRAY) {
if (p.hasToken(JsonToken.VALUE_NULL)) {
return null;
}
throw JSONObjectException.from(p, "Unexpected token %s; should get START_ARRAY",
p.currentToken());
}
CollectionBuilder b = r._collectionBuilder(null);
if (p.nextToken() == JsonToken.END_ARRAY) {
return b.emptyArray(_elementType);
}
Object value = _valueReader.read(r, p);
if (p.nextToken() == JsonToken.END_ARRAY) {
return b.singletonArray(_elementType, value);
}
b = b.start().add(value);
do {
b = b.add(_valueReader.read(r, p));
} while (p.nextToken() != JsonToken.END_ARRAY);
return b.buildArray(_elementType);
}
@Override
public Object read(JSONReader r, JsonParser p) throws IOException {
CollectionBuilder b = r._collectionBuilder(null);
if (p.nextToken() == JsonToken.END_ARRAY) {
return b.emptyArray(_elementType);
}
Object value = _valueReader.read(r, p);
if (p.nextToken() == JsonToken.END_ARRAY) {
return b.singletonArray(_elementType, value);
}
b = b.start().add(value);
do {
b = b.add(_valueReader.read(r, p));
} while (p.nextToken() != JsonToken.END_ARRAY);
return b.buildArray(_elementType);
}
}
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