blob: d9339f4ecf118c80ce5fa5d6653c95cef99122dd (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.documentapi;
import com.yahoo.document.Document;
import com.yahoo.document.DocumentId;
import com.yahoo.documentapi.messagebus.protocol.PutDocumentMessage;
import com.yahoo.documentapi.messagebus.protocol.RemoveDocumentMessage;
import com.yahoo.messagebus.Message;
/**
* <p>Implementation of VisitorDataHandler which invokes onDocument() for each
* received document and onRemove() for each document id that was returned as
* part of a remove entry. The latter only applies if the visitor was run with
* visitRemoves enabled.</p>
*
* <p>NOTE: onDocument and onRemove may be called in a re-entrant manner, as
* these run on top of a thread pool. Any mutation of shared state must be
* appropriately synchronized.</p>
*/
public abstract class DumpVisitorDataHandler extends VisitorDataHandler {
public DumpVisitorDataHandler() {
}
@Override
public void onMessage(Message m, AckToken token) {
if (m instanceof PutDocumentMessage) {
PutDocumentMessage pm = (PutDocumentMessage)m;
onDocument(pm.getDocumentPut().getDocument(), pm.getTimestamp());
} else if (m instanceof RemoveDocumentMessage) {
RemoveDocumentMessage rm = (RemoveDocumentMessage)m;
onRemove(rm.getDocumentId());
} else {
throw new UnsupportedOperationException("Received unsupported message " + m.toString() + " to dump visitor data handler. This handler only accepts Put and Remove");
}
ack(token);
}
/**
* Called when a document is received.
*
* May be called from multiple threads concurrently.
*
* @param doc The document found
* @param timeStamp The time when the document was stored.
*/
public abstract void onDocument(Document doc, long timeStamp);
/**
* Called when a remove is received.
*
* May be called from multiple threads concurrently.
*
* @param id The document id that was removed.
*/
public abstract void onRemove(DocumentId id);
}
|
