Sending XContentBuilder over the wire

Elastic Stack Elasticsearch
1

Hi,

I am trying to serialize the XContentBuilder objects over the write from
the client and regenerate at the server side. At the server side I am
trying
to rebuild the XContentBuilder and bulk seed into the ES server. However I
am not aware of any API where one can rebuild the XContentBuilder from
InputStream.

// Client side code

sendJSONObjects()
{
ByteArrayOutputStream bos = new ByteArrayOutputStream();

XContentBuilder json1 = XContentFactory.jsonBuilder(bos)
.startObject()
.field("nodeId", 1)
.endObject()
.startObject() // second
object
.field("nodeId", 2)
.endObject();

json1.flush();

bos.close();

byte[] bytes = compressBytes(bos.toByteArray());

           SeedData data = new SeedData();
           data.setObjects(bytes);
           // .... set application data on seed data

         // transfer data

}

// Server side

readJSONObjects(SeedData data)
{
bytes [] jsonObjectBytes = decompress(data.getObjects());

// bulk insert into ES server
}

Now how do i create XContentBuilder objects from jsonObjectBytes so that i
can do bulk insert??

thanks

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2

Hey,

As the XContentBuilder is simply a builder pattern and not a data structure
for serializing, I am not sure you approach works (havent peeked at the
source though).
Alternatively you could use the XContentParser
Map<String, Object> foo =
JsonXContent.jsonXContent.createParser(is).mapAndClose()

Hope this helps (otherwise I most likely got your question wrong),

--Alex

On Thu, Jun 6, 2013 at 8:58 PM, vinod eligeti veligeti999@gmail.com wrote:

Hi,

I am trying to serialize the XContentBuilder objects over the write from
the client and regenerate at the server side. At the server side I am
trying
to rebuild the XContentBuilder and bulk seed into the ES server. However I
am not aware of any API where one can rebuild the XContentBuilder from
InputStream.

// Client side code

sendJSONObjects()
{
ByteArrayOutputStream bos = new ByteArrayOutputStream();

XContentBuilder json1 = XContentFactory.jsonBuilder(bos)
.startObject()
.field("nodeId", 1)
.endObject()
.startObject() // second
object
.field("nodeId", 2)
.endObject();

json1.flush();

bos.close();

byte bytes = compressBytes(bos.toByteArray());

           SeedData data = new SeedData();
           data.setObjects(bytes);
           // .... set application data on seed data

         // transfer data

}

// Server side

readJSONObjects(SeedData data)
{
bytes jsonObjectBytes = decompress(data.getObjects());

// bulk insert into ES server
}

Now how do i create XContentBuilder objects from jsonObjectBytes so that i
can do bulk insert??

thanks

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3

You know ES provides already an API for that with the transport client
(I call it the Java Transport API?)

Jörg

Am 06.06.2013 20:58, schrieb vinod eligeti:

I am trying to serialize the XContentBuilder objects over the write
from the client and regenerate at the server side.

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4

Jorg,

Transport API directly push docs into the ES servers however, I need to do
some business logic before I push into the ES servers.

On Fri, Jun 7, 2013 at 12:50 AM, Jörg Prante joergprante@gmail.com wrote:

You know ES provides already an API for that with the transport client (I
call it the Java Transport API?)

Jörg

Am 06.06.2013 20:58, schrieb vinod eligeti:

I am trying to serialize the XContentBuilder objects over the write from
the client and regenerate at the server side.

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