--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cachingfilter/BufferInputStream.java	Thu Mar 21 19:15:52 2019 -0600
@@ -0,0 +1,41 @@
+package cachingfilter;
+
+import java.io.InputStream;
+import org.eclipse.jetty.io.Buffer;
+
+
+public final class BufferInputStream extends InputStream {
+	private final Buffer buffer;
+
+	public BufferInputStream(Buffer buffer) {
+		this.buffer = buffer;
+	}
+
+	public int read() {
+		return buffer.length()==0 ? -1 : buffer.get();
+	}
+
+	public int read(byte b[], int off, int len) {
+		return buffer.get(b,off,len);
+	}
+
+	public long skip(long n) {
+		return buffer.skip( (int)n );
+	}
+
+	public int available() {
+		return buffer.length();
+	}
+
+	public void mark(int readlimit) {
+		buffer.mark();
+	}
+
+	public void reset() {
+		buffer.reset();
+	}
+
+	public boolean markSupported() {
+		return true;
+	}
+}