David Pilato d406b88857 Fix NPE when simulating a pipeline with no id
When you simulate a pipeline without specifying an id against a node where the request is redirected to a master node,
the request and the response is throwing a NPE:

```
java.lang.NullPointerException
    at __randomizedtesting.SeedInfo.seed([3B9536AC6AA23C06:DD62280CF765DA1F]:0)
    at org.elasticsearch.common.io.stream.StreamOutput.writeString(StreamOutput.java:300)
    at org.elasticsearch.action.ingest.SimulatePipelineRequest.writeTo(SimulatePipelineRequest.java:92)
    at org.elasticsearch.transport.local.LocalTransport.sendRequest(LocalTransport.java:222)
    at org.elasticsearch.test.transport.AssertingLocalTransport.sendRequest(AssertingLocalTransport.java:95)
    at org.elasticsearch.transport.TransportService.sendRequest(TransportService.java:470)
    at org.elasticsearch.action.TransportActionNodeProxy.execute(TransportActionNodeProxy.java:51)
    at org.elasticsearch.client.transport.support.TransportProxyClient.lambda$execute$441(TransportProxyClient.java:63)
    at org.elasticsearch.client.transport.TransportClientNodesService.execute(TransportClientNodesService.java:233)
    at org.elasticsearch.client.transport.support.TransportProxyClient.execute(TransportProxyClient.java:63)
    at org.elasticsearch.client.transport.TransportClient.doExecute(TransportClient.java:309)
    at org.elasticsearch.client.support.AbstractClient.execute(AbstractClient.java:403)
    at org.elasticsearch.client.FilterClient.doExecute(FilterClient.java:67)
    at org.elasticsearch.client.support.AbstractClient.execute(AbstractClient.java:403)
    at org.elasticsearch.client.support.AbstractClient$ClusterAdmin.execute(AbstractClient.java:710)
    at org.elasticsearch.action.ActionRequestBuilder.execute(ActionRequestBuilder.java:80)
    at org.elasticsearch.action.ActionRequestBuilder.execute(ActionRequestBuilder.java:54)
    at org.elasticsearch.action.ActionRequestBuilder.get(ActionRequestBuilder.java:62)
    at org.elasticsearch.ingest.bano.BanoProcessorIntegrationTest.testSimulateProcessorConfigTarget(BanoProcessorIntegrationTest.java:139)
```

This patch fixes this and adds some random tests.
2016-07-28 13:28:24 +02:00
..