blob: ea3d7bc67d3e7578119f2ca7c572a9543feb3793 [file] [log] [blame]
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.iotdb.tsfile.encoding.decoder;
import java.nio.ByteBuffer;
import static org.apache.iotdb.tsfile.common.conf.TSFileConfig.GORILLA_ENCODING_ENDING_FLOAT;
/**
* This class includes code modified from Michael Burman's gorilla-tsc project.
*
* <p>Copyright: 2016-2018 Michael Burman and/or other contributors
*
* <p>Project page: https://github.com/burmanm/gorilla-tsc
*
* <p>License: http://www.apache.org/licenses/LICENSE-2.0
*/
public class SinglePrecisionDecoderV2 extends IntGorillaDecoder {
private static final int GORILLA_ENCODING_ENDING =
Float.floatToRawIntBits(GORILLA_ENCODING_ENDING_FLOAT);
@Override
public final float readFloat(ByteBuffer in) {
return Float.intBitsToFloat(readInt(in));
}
@Override
protected int cacheNext(ByteBuffer in) {
readNext(in);
if (storedValue == GORILLA_ENCODING_ENDING) {
hasNext = false;
}
return storedValue;
}
}