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Posted to dev@zookeeper.apache.org by "Flavio Junqueira (JIRA)" <ji...@apache.org> on 2010/12/18 15:38:00 UTC
[jira] Commented: (ZOOKEEPER-824) Calling addEntry on a
LedgerHandler obtained using openLedger does not throw an exception.
[ https://issues.apache.org/jira/browse/ZOOKEEPER-824?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12972796#action_12972796 ]
Flavio Junqueira commented on ZOOKEEPER-824:
--------------------------------------------
A LedgerHandle currently does not differentiate a created ledger from an open ledger. To enable such an exception, we would have to use some sort of flagging.
> Calling addEntry on a LedgerHandler obtained using openLedger does not throw an exception.
> ------------------------------------------------------------------------------------------
>
> Key: ZOOKEEPER-824
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-824
> Project: ZooKeeper
> Issue Type: Bug
> Components: contrib-bookkeeper
> Affects Versions: 3.3.1
> Reporter: André Oriani
>
> Calling addEntry on a LedgerHandler obtained using openLedger does not throw an exception.
> Teste Case :
> {code}
> package br.unicamp.zooexp.booexp;
> import java.io.IOException;
> import java.util.Enumeration;
> import org.apache.bookkeeper.client.BKException;
> import org.apache.bookkeeper.client.BookKeeper;
> import org.apache.bookkeeper.client.LedgerEntry;
> import org.apache.bookkeeper.client.LedgerHandle;
> import org.apache.bookkeeper.client.BookKeeper.DigestType;
> import org.apache.zookeeper.KeeperException;
> public class BookTest {
> public static void main (String ... args) throws IOException, InterruptedException, KeeperException, BKException{
> BookKeeper bk = new BookKeeper("127.0.0.1");
> LedgerHandle lh = bk.createLedger(DigestType.CRC32, "123".getBytes());
> long lh_id = lh.getId();
> lh.addEntry("Teste".getBytes());
> lh.addEntry("Test2".getBytes());
> System.out.printf("Got %d entries for lh\n",lh.getLastAddConfirmed()+1);
> lh.addEntry("Test3".getBytes());
> LedgerHandle lh1 = bk.openLedger(lh_id, DigestType.CRC32, "123".getBytes());
> System.out.printf("Got %d entries for lh1\n",lh1.getLastAddConfirmed()+1);
> lh.addEntry("Test4".getBytes());
> lh.addEntry("Test5".getBytes());
> lh.addEntry("Test6".getBytes());
> System.out.printf("Got %d entries for lh\n",lh.getLastAddConfirmed()+1);
> Enumeration<LedgerEntry> seq = lh.readEntries(0, lh.getLastAddConfirmed());
> while (seq.hasMoreElements()){
> System.out.println(new String(seq.nextElement().getEntry()));
> }
> lh.close();
> lh1.addEntry("Test7".getBytes());
> lh1.addEntry("Test8".getBytes());
> System.out.printf("Got %d entries for lh1\n",lh1.getLastAddConfirmed()+1);
> seq = lh1.readEntries(0, lh1.getLastAddConfirmed());
> while (seq.hasMoreElements()){
> System.out.println(new String(seq.nextElement().getEntry()));
> }
> lh1.close();
> LedgerHandle lh2 = bk.openLedger(lh_id, DigestType.CRC32, "123".getBytes());
> lh2.addEntry("Test9".getBytes());
> System.out.printf("Got %d entries for lh2 \n",lh2.getLastAddConfirmed()+1);
> seq = lh2.readEntries(0, lh2.getLastAddConfirmed());
> while (seq.hasMoreElements()){
> System.out.println(new String(seq.nextElement().getEntry()));
> }
> bk.halt();
> }
> }
> {code}
> {panel:title=Output}
> Got 2 entries for lh
> Got 3 entries for lh1
> Got 6 entries for lh
> Teste
> Test2
> Test3
> Test4
> Test5
> Test6
> Got 3 entries for lh1
> Teste
> Test2
> Test3
> Got 3 entries for lh2
> Teste
> Test2
> Test3
> {panel}
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