/*
* 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.jclouds.io;
import static com.google.common.base.Preconditions.checkNotNull;
import java.io.IOException;
import java.io.InputStream;
import com.google.common.annotations.Beta;
import com.google.common.hash.HashCode;
import com.google.common.hash.HashFunction;
import com.google.common.hash.HashingInputStream;
import com.google.common.io.ByteSource;
import com.google.common.io.ByteStreams;
import com.google.common.io.Closeables;
@Beta
public class ByteStreams2 {
public static HashCode hashAndClose(InputStream input, HashFunction hashFunction) throws IOException {
checkNotNull(input, "input");
checkNotNull(hashFunction, "hashFunction");
try {
HashingInputStream his = new HashingInputStream(hashFunction, input);
ByteStreams.copy(his, ByteStreams.nullOutputStream());
return his.hash();
} finally {
Closeables.closeQuietly(input);
}
}
public static byte[] toByteArrayAndClose(InputStream input) throws IOException {
checkNotNull(input, "input");
try {
return ByteStreams.toByteArray(input);
} finally {
Closeables.closeQuietly(input);
}
}
@Deprecated
public static ByteSource asByteSource(final Payload payload) {
checkNotNull(payload, "payload");
return new ByteSource() {
@Override
public InputStream openStream() throws IOException {
return payload.openStream();
}
};
}
}