1 files changed, 49 insertions, 0 deletions
diff --git a/org.jacoco.core/src/org/jacoco/core/internal/InputStreams.java b/org.jacoco.core/src/org/jacoco/core/internal/InputStreams.java
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index 00000000..463545df
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+++ b/org.jacoco.core/src/org/jacoco/core/internal/InputStreams.java
@@ -0,0 +1,49 @@
+/*******************************************************************************
+ * Copyright (c) 2009, 2017 Mountainminds GmbH & Co. KG and Contributors
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Evgeny Mandrikov - initial API and implementation
+ *
+ *******************************************************************************/
+package org.jacoco.core.internal;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * Utilities for {@link InputStream}s.
+ */
+public final class InputStreams {
+
+	private InputStreams() {
+	}
+
+	/**
+	 * Reads all bytes from an input stream into a byte array. The provided
+	 * {@link InputStream} is not closed by this method.
+	 *
+	 * @param is
+	 *            the input stream to read from
+	 * @return a byte array containing all the bytes from the stream
+	 * @throws IOException
+	 *             if an I/O error occurs
+	 */
+	public static byte[] readFully(final InputStream is) throws IOException {
+		final byte[] buf = new byte[1024];
+		final ByteArrayOutputStream out = new ByteArrayOutputStream();
+		while (true) {
+			final int r = is.read(buf);
+			if (r == -1) {
+				break;
+			}
+			out.write(buf, 0, r);
+		}
+		return out.toByteArray();
+	}
+
+}