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/*
Copyright 2016 Goldman Sachs.
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 com.gs.fw.common.mithra.util.fileparser;
import com.gs.fw.common.mithra.attribute.Attribute;
import com.gs.fw.common.mithra.attribute.SingleColumnAttribute;
import java.io.DataInputStream;
import java.io.EOFException;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
public class ColumnarInStream
{
private InputStream in;
public ColumnarInStream(InputStream dataIn)
{
this.in = dataIn;
}
public int read() throws IOException
{
return in.read();
}
public BitsInBytes decodeColumnarNull(SingleColumnAttribute attr, List data) throws IOException
{
int hasNulls = in.read();
if (hasNulls == 0)
{
return null;
}
BitsInBytes result = BitsInBytes.readFromInputStream(in, data.size());
Attribute nullableAttribute = (Attribute) attr;
for(int i=0;i