/**
* 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.hbase;
import java.io.DataInput;
import java.io.EOFException;
import java.io.IOException;
import java.io.InputStream;
public class DataInputInputStream extends InputStream {
private final DataInput dataInput;
public DataInputInputStream(DataInput dataInput) {
this.dataInput = dataInput;
}
@Override
public int read() throws IOException {
try {
return dataInput.readUnsignedByte();
} catch (EOFException e) {
// contract on EOF differs between DataInput and InputStream
return -1;
}
}
public static InputStream from(DataInput dataInput) {
if(dataInput instanceof InputStream) {
return (InputStream)dataInput;
}
return new DataInputInputStream(dataInput);
}
}