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https://issues.apache.org/jira/browse/TAJO-1944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15031305#comment-15031305
]
ASF GitHub Bot commented on TAJO-1944:
--------------------------------------
Github user jihoonson commented on a diff in the pull request:
https://github.com/apache/tajo/pull/876#discussion_r46107725
--- Diff:
tajo-core/src/main/java/org/apache/tajo/ws/rs/resources/outputs/BinaryStreamingOutput.java
---
@@ -0,0 +1,79 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.tajo.ws.rs.resources.outputs;
+
+import com.google.protobuf.ByteString;
+import org.apache.tajo.master.exec.NonForwardQueryResultScanner;
+import org.apache.tajo.ws.rs.annotation.RestReturnType;
+
+import javax.ws.rs.WebApplicationException;
+import java.io.BufferedOutputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.util.List;
+
+@RestReturnType(
+ description = "default binary streaming output",
+ headerType = "application/octet-stream"
+)
+public class BinaryStreamingOutput extends AbstractStreamingOutput {
+ private List<ByteString> outputList = null;
+
+ public BinaryStreamingOutput(NonForwardQueryResultScanner scanner,
Integer count, Integer startOffset) throws IOException {
+ super(scanner, count, startOffset);
+ }
+
+ @Override
+ public boolean hasLength() {
+ return false;
--- End diff --
When BinaryStreamingOutput is used, Content-Length attribute of the http
header can be filled by calculating the total length of the binary data.
Content-Length attribute needs to be filled in most cases. Please see
http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
> Support text resultset for REST
> --------------------------------
>
> Key: TAJO-1944
> URL: https://issues.apache.org/jira/browse/TAJO-1944
> Project: Tajo
> Issue Type: Task
> Components: REST API
> Reporter: Jihoon Son
> Assignee: DaeMyung Kang
> Fix For: 0.11.1
>
>
> See the discussion at http://markmail.org/message/gpvzw7fcbo4rrtkt.
> Currently, our REST api returns result sets in a binary form. This makes
> users to use our REST api difficult.
> However, see another discussion at
> https://mail-archives.apache.org/mod_mbox/tajo-dev/201503.mbox/%3ccafu6yh0dgbvwqnbyw3hrp-6dvzp4fg65mnpueqqgwuoq_x_...@mail.gmail.com%3E.
> Since we plan to support other types of clients using REST api, we also need
> to support binary result sets.
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