1 files changed, 80 insertions, 0 deletions
diff --git a/src/share/classes/sun/rmi/transport/proxy/HttpOutputStream.java b/src/share/classes/sun/rmi/transport/proxy/HttpOutputStream.java
new file mode 100644
index 000000000..f7336b432
--- /dev/null
+++ b/src/share/classes/sun/rmi/transport/proxy/HttpOutputStream.java
@@ -0,0 +1,80 @@
+/*
+ * Copyright 1996 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+package sun.rmi.transport.proxy;
+
+import java.io.*;
+
+/**
+ * The HttpOutputStream class assists the HttpSendSocket and HttpReceiveSocket
+ * classes by providing an output stream that buffers its entire input until
+ * closed, and then it sends the complete transmission prefixed by the end of
+ * an HTTP header that specifies the content length.
+ */
+class HttpOutputStream extends ByteArrayOutputStream {
+
+    /** the output stream to send response to */
+    protected OutputStream out;
+
+    /** true if HTTP response has been sent */
+    boolean responseSent = false;
+
+    /**
+     * Begin buffering new HTTP response to be sent to a given stream.
+     * @param out the OutputStream to send response to
+     */
+    public HttpOutputStream(OutputStream out) {
+        super();
+        this.out = out;
+    }
+
+    /**
+     * On close, send HTTP-packaged response.
+     */
+    public synchronized void close() throws IOException {
+        if (!responseSent) {
+            /*
+             * If response would have zero content length, then make it
+             * have some arbitrary data so that certain clients will not
+             * fail because the "document contains no data".
+             */
+            if (size() == 0)
+                write(emptyData);
+
+            DataOutputStream dos = new DataOutputStream(out);
+            dos.writeBytes("Content-type: application/octet-stream\r\n");
+            dos.writeBytes("Content-length: " + size() + "\r\n");
+            dos.writeBytes("\r\n");
+            writeTo(dos);
+            dos.flush();
+            // Do not close the underlying stream here, because that would
+            // close the underlying socket and prevent reading a response.
+            reset(); // reset byte array
+            responseSent = true;
+        }
+    }
+
+    /** data to send if the response would otherwise be empty */
+    private static byte[] emptyData = { 0 };
+}