org.sejda.util.IOUtils.java Source code

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Here is the source code for org.sejda.util.IOUtils.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.
 */

/* $Id$ */

package org.sejda.util;

import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;

import org.sejda.io.FastByteArrayOutputStream;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Utility class with I/O related static methods
 */
public final class IOUtils {
    private static final Logger LOG = LoggerFactory.getLogger(IOUtils.class);

    private IOUtils() {
        // hide
    }

    /**
     * Null safe close of the given {@link Closeable}.
     *
     * @param closeable
     *            to be closed
     * @throws IOException
     */
    public static void close(Closeable closeable) throws IOException {
        if (closeable != null) {
            closeable.close();
        }
    }

    /**
     * Null safe close of the given {@link Closeable} suppressing any exception.
     *
     * @param closeable
     *            to be closed
     */
    public static void closeQuietly(Closeable closeable) {
        try {
            if (closeable != null) {
                closeable.close();
            }
        } catch (IOException ioe) {
            LOG.warn("An error occured while closing a Closeable resource", ioe);
        }
    }

    /**
     * @param input
     * @return the content of the input stream as a byte[]
     * @throws IOException
     */
    public static byte[] toByteArray(InputStream input) throws IOException {
        FastByteArrayOutputStream output = new FastByteArrayOutputStream();
        org.apache.commons.io.IOUtils.copy(input, output);
        return output.toByteArray();
    }
}