org.apache.hadoop.hive.druid.json.AvroStreamInputRowParser Maven / Gradle / Ivy
/*
* 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.hadoop.hive.druid.json;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.base.Preconditions;
import org.apache.druid.data.input.ByteBufferInputRowParser;
import org.apache.druid.data.input.InputRow;
import org.apache.druid.data.input.impl.ParseSpec;
import javax.validation.constraints.NotNull;
import java.nio.ByteBuffer;
import java.util.List;
import java.util.Objects;
/**
* This class is copied from druid source code
* in order to avoid adding additional dependencies on druid-indexing-service.
*/
public class AvroStreamInputRowParser implements ByteBufferInputRowParser {
private final ParseSpec parseSpec;
private final AvroBytesDecoder avroBytesDecoder;
@JsonCreator public AvroStreamInputRowParser(@JsonProperty("parseSpec") ParseSpec parseSpec,
@JsonProperty("avroBytesDecoder") AvroBytesDecoder avroBytesDecoder) {
this.parseSpec = Preconditions.checkNotNull(parseSpec, "parseSpec");
this.avroBytesDecoder = Preconditions.checkNotNull(avroBytesDecoder, "avroBytesDecoder");
}
@NotNull @Override public List parseBatch(ByteBuffer input) {
throw new UnsupportedOperationException("This class is only used for JSON serde");
}
@JsonProperty @Override public ParseSpec getParseSpec() {
return parseSpec;
}
@JsonProperty public AvroBytesDecoder getAvroBytesDecoder() {
return avroBytesDecoder;
}
@Override public ByteBufferInputRowParser withParseSpec(ParseSpec parseSpec) {
return new AvroStreamInputRowParser(parseSpec, avroBytesDecoder);
}
@Override public boolean equals(final Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
final AvroStreamInputRowParser that = (AvroStreamInputRowParser) o;
return Objects.equals(parseSpec, that.parseSpec) && Objects.equals(avroBytesDecoder, that.avroBytesDecoder);
}
@Override public int hashCode() {
return Objects.hash(parseSpec, avroBytesDecoder);
}
}