/*
* 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.facebook.presto.hive.parquet.dictionary;
import com.facebook.presto.hive.parquet.ParquetDictionaryPage;
import parquet.column.values.plain.PlainValuesReader.IntegerPlainValuesReader;
import java.io.IOException;
import static com.google.common.base.MoreObjects.toStringHelper;
public class ParquetIntegerDictionary
extends ParquetDictionary
{
private final int[] content;
public ParquetIntegerDictionary(ParquetDictionaryPage dictionaryPage)
throws IOException
{
super(dictionaryPage.getEncoding());
content = new int[dictionaryPage.getDictionarySize()];
IntegerPlainValuesReader intReader = new IntegerPlainValuesReader();
intReader.initFromPage(dictionaryPage.getDictionarySize(), dictionaryPage.getSlice().getBytes(), 0);
for (int i = 0; i < content.length; i++) {
content[i] = intReader.readInteger();
}
}
@Override
public int decodeToInt(int id)
{
return content[id];
}
@Override
public String toString()
{
return toStringHelper(this)
.add("content", content)
.toString();
}
}