[JGIT PATCH 2/5] Add copy(InputStream) to TemporaryBuffer

["Shawn O. Pearce" <spearce@xxxxxxxxxxx>]

In some places we may find it ourselves with an InputStream we
need to copy into a TemporaryBuffer, so we can flatten out the
entire stream to a single byte[].  Putting the copy loop here
is more useful then duplicating it in application level code.

Signed-off-by: Shawn O. Pearce <spearce@xxxxxxxxxxx>
---
 .../src/org/spearce/jgit/util/TemporaryBuffer.java |   17 +++++++++++++++++
 1 files changed, 17 insertions(+), 0 deletions(-)

diff --git a/org.spearce.jgit/src/org/spearce/jgit/util/TemporaryBuffer.java b/org.spearce.jgit/src/org/spearce/jgit/util/TemporaryBuffer.java
index b1ffd6e..8f91246 100644
--- a/org.spearce.jgit/src/org/spearce/jgit/util/TemporaryBuffer.java
+++ b/org.spearce.jgit/src/org/spearce/jgit/util/TemporaryBuffer.java
@@ -42,6 +42,7 @@
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
 import java.io.IOException;
+import java.io.InputStream;
 import java.io.OutputStream;
 import java.util.ArrayList;
 
@@ -135,6 +136,22 @@ public void write(final byte[] b, int off, int len) throws IOException {
 			diskOut.write(b, off, len);
 	}
 
+	/**
+	 * Copy all bytes remaining on the input stream into this buffer.
+	 * 
+	 * @param in
+	 *            the stream to read from, until EOF is reached.
+	 * @throws IOException
+	 *             an error occurred reading from the input stream, or while
+	 *             writing to a local temporary file.
+	 */
+	public void copy(final InputStream in) throws IOException {
+		final byte[] b = new byte[2048];
+		int n;
+		while ((n = in.read(b)) > 0)
+			write(b, 0, n);
+	}
+
 	private Block last() {
 		return blocks.get(blocks.size() - 1);
 	}
-- 
1.6.1.rc2.299.gead4c

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