org.jclouds.io.ByteSources.java Source code

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Here is the source code for org.jclouds.io.ByteSources.java

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/*
 * 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.io.ByteSource;

/**
 * functions related to or replacing those in {@link ByteSource}
 * 
 * @author Adrian Cole
 */
@Beta
public class ByteSources {

    /**
     * always returns the same stream
     * 
     * @param in
     *           stream to always return
     */
    public static ByteSource asByteSource(final InputStream in) {
        checkNotNull(in, "in");
        return new ByteSource() {
            @Override
            public InputStream openStream() throws IOException {
                return in;
            }
        };
    }

}