Utilities/src/dorkbox/util/IO.java

/*
 * Copyright 2023 dorkbox, llc
 *
 * Licensed 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 dorkbox.util;

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

import javax.imageio.stream.ImageInputStream;

@SuppressWarnings({"unused", "Duplicates"})
// deprecated. use kotlin.
public
class IO {
    /**
     * Convenient close for a Closeable.
     */
    @SuppressWarnings("Duplicates")
    @Deprecated
    public static
    void close(final Closeable closeable) {
        if (closeable != null) {
            try {
                closeable.close();
            } catch (IOException e) {
                System.err.println("Error closing : " + closeable);
                e.printStackTrace();
            }
        }
    }

    /**
     * Convenient close for a Closeable.
     */
    @SuppressWarnings("Duplicates")
    @Deprecated
    public static
    void closeQuietly(final Closeable closeable) {
        if (closeable != null) {
            try {
                closeable.close();
            } catch (IOException ignored) {
            }
        }
    }

    /**
     * Copy the contents of the input stream to the output stream.
     * <p>
     * DOES NOT CLOSE THE STREAMS!
     */
    @Deprecated
    public static
    <T extends OutputStream> T copyStream(final InputStream inputStream, final T outputStream) throws IOException {
        byte[] buffer = new byte[4096];
        int read;

        while ((read = inputStream.read(buffer)) > 0) {
            outputStream.write(buffer, 0, read);
        }
        outputStream.flush();

        return outputStream;
    }

    /**
     * Copy the contents of the input stream to the output stream.
     * <p>
     * DOES NOT CLOSE THE STREAMS!
     */
    @Deprecated
    public static
    <T extends OutputStream> T copyStream(final ImageInputStream inputStream, final T outputStream) throws IOException {
        return copyStream(4096, inputStream, outputStream);
    }

    /**
     * Copy the contents of the input stream to the output stream.
     * <p>
     * DOES NOT CLOSE THE STREAMS!
     */
    @Deprecated
    public static
    <T extends OutputStream> T copyStream(final int bufferSize, final ImageInputStream inputStream, final T outputStream) throws IOException {
        byte[] buffer = new byte[bufferSize];
        int read;

        while ((read = inputStream.read(buffer)) > 0) {
            outputStream.write(buffer, 0, read);
        }
        outputStream.flush();

        return outputStream;
    }

    /**
     * Copy the contents of the input stream to a new output stream.
     * <p>
     * DOES NOT CLOSE THE STREAMS!
     */
    @Deprecated
    public static
    ByteArrayOutputStream copyStream(final InputStream inputStream) throws IOException {
        ByteArrayOutputStream outputStream = new ByteArrayOutputStream(4096);
        byte[] buffer = new byte[4096];
        int read;

        while ((read = inputStream.read(buffer)) > 0) {
            outputStream.write(buffer, 0, read);
        }
        outputStream.flush();

        return outputStream;
    }

    /**
     * Copy the contents of the input stream to a new output stream.
     * <p>
     * DOES NOT CLOSE THE STREAMS!
     */
    @Deprecated
    public static
    ByteArrayOutputStream copyStream(final ImageInputStream inputStream) throws IOException {
        ByteArrayOutputStream outputStream = new ByteArrayOutputStream(4096);
        byte[] buffer = new byte[4096];
        int read;

        while ((read = inputStream.read(buffer)) > 0) {
            outputStream.write(buffer, 0, read);
        }
        outputStream.flush();

        return outputStream;
    }
}