SebastianDietrich commented on a change in pull request #281:
URL: https://github.com/apache/commons-io/pull/281#discussion_r730660676
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File path: src/main/java/org/apache/commons/io/IOUtils.java
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@@ -979,6 +981,40 @@ public static int copy(final InputStream inputStream,
final OutputStream outputS
return (int) count;
}
+ /**
+ * Copies bytes from a {@link java.io.ByteArrayOutputStream} to a {@code
QueueInputStream}.
+ * <p>
+ * Unlike using JDK {@link java.io.PipedInputStream} and {@link
java.io.PipedOutputStream} for this, this
+ * solution works safely in a single thread environment.
+ * </p>
+ * <p>
+ * Example usage:
+ * </p>
+ *
+ * <pre>
+ * ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+ * outputStream.writeBytes("hello world".getBytes(UTF_8));
+ *
+ * InputStream inputStream = IOUtils.copy(outputStream);
+ * </pre>
+ *
+ * @param outputStream the {@link java.io.ByteArrayOutputStream} to read.
+ * @return the {@code QueueInputStream} filled with the content of the
outputStream.
+ * @throws NullPointerException if the {@link
java.io.ByteArrayOutputStream} is {@code null}.
+ * @throws IOException if an I/O error occurs.
+ * @since 2.12
+ */
+ @SuppressWarnings("resource") // streams are closed by the caller.
+ public static QueueInputStream copy(final java.io.ByteArrayOutputStream
outputStream) throws IOException {
Review comment:
That is not possible, since
org.apache.commons.io.output.ByteArrayOutputStream is imported and used
throughout IOUtils
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