org.jgroups.util.Table.get java code examples

protected void handleXmitRequest(Address sender, SeqnoList missing) {
  if(is_trace)
    log.trace("%s <-- XMIT(%s: #%s)", local_addr, sender, missing);
  SenderEntry entry=send_table.get(sender);
  xmit_reqs_received.add(missing.size());
  Table<Message> win=entry != null? entry.msgs : null;
  if(win != null) {
    for(long seqno: missing) {
      Message msg=win.get(seqno);
      if(msg == null) {
        if(log.isWarnEnabled() && log_not_found_msgs && !local_addr.equals(sender) && seqno > win.getLow())
          log.warn(Util.getMessage("MessageNotFound"), local_addr, sender, seqno);
        continue;
      }
      down_prot.down(msg);
      xmit_rsps_sent.increment();
    }
  }
}

Message highest_sent_msg=win.get(highest_sent);
if(highest_sent_msg != null)
  retransmit(highest_sent_msg);

for(LongTuple<Message> tuple: msgs) {
  long    seq=tuple.getVal1();
  Message msg=buf.get(seq); // we *have* to get the message, because loopback means we didn't add it to win !
  if(msg != null && msg.isFlagSet(Message.Flag.OOB) && msg.setTransientFlagIfAbsent(Message.TransientFlag.OOB_DELIVERED))
    oob_batch.add(msg);

Message highest_sent_msg=win.get(highest_sent);
if(highest_sent_msg != null)
  retransmit(highest_sent_msg);

/**
 * Retransmits messsages first_seqno to last_seqno from original_sender from xmit_table to xmit_requester,
 * called when XMIT_REQ is received.
 * @param xmit_requester The sender of the XMIT_REQ, we have to send the requested copy of the message to this address
 * @param missing_msgs A list of seqnos that have to be retransmitted
 * @param original_sender The member who originally sent the messsage. Guaranteed to be non-null
 */
protected void handleXmitReq(Address xmit_requester, SeqnoList missing_msgs, Address original_sender) {
  log.trace("%s: received xmit request from %s for %s%s", local_addr, xmit_requester, original_sender, missing_msgs);
  if(stats)
    xmit_reqs_received.add(missing_msgs.size());
  Table<Message> buf=xmit_table.get(original_sender);
  if(buf == null) {
    log.error(Util.getMessage("SenderNotFound"), local_addr, original_sender);
    return;
  }
  for(long i: missing_msgs) {
    Message msg=buf.get(i);
    if(msg == null) {
      if(log.isWarnEnabled() && log_not_found_msgs && !local_addr.equals(xmit_requester) && i > buf.getLow())
        log.warn(Util.getMessage("MessageNotFound"), local_addr, original_sender, i);
      continue;
    }
    if(is_trace)
      log.trace(local_addr + ": resending " + original_sender + "::" + i);
    sendXmitRsp(xmit_requester, msg);
  }
}

msg=buf.get(hdr.seqno); // we *have* to get a message, because loopback means we didn't add it to win !
if(msg != null && msg.isFlagSet(Message.Flag.OOB) && msg.setTransientFlagIfAbsent(Message.TransientFlag.OOB_DELIVERED))
  deliver(msg, sender, hdr.seqno, "OOB message");

/**
 * We need to resend the first message with our conn_id
 * @param sender
 */
protected void handleResendingOfFirstMessage(Address sender, int timestamp) {
  log.trace("%s <-- SEND_FIRST_SEQNO(%s)", local_addr, sender);
  SenderEntry entry=send_table.get(sender);
  Table<Message> win=entry != null? entry.msgs : null;
  if(win == null) {
    log.warn(Util.getMessage("SenderNotFound"), local_addr, sender);
    return;
  }
  if(!entry.updateLastTimestamp(timestamp))
    return;
  Message rsp=win.get(win.getLow() +1);
  if(rsp != null) {
    // We need to copy the UnicastHeader and put it back into the message because Message.copy() doesn't copy
    // the headers and therefore we'd modify the original message in the sender retransmission window
    // (https://jira.jboss.org/jira/browse/JGRP-965)
    Message copy=rsp.copy();
    UnicastHeader3 hdr=copy.getHeader(this.id);
    UnicastHeader3 newhdr=hdr.copy();
    newhdr.first=true;
    copy.putHeader(this.id, newhdr);
    down_prot.down(copy);
  }
}

for(LongTuple<Message> tuple: list) {
  long    seq=tuple.getVal1();
  Message msg=win.get(seq); // we *have* to get the message, because loopback means we didn't add it to win !
  if(msg != null && msg.isFlagSet(Message.Flag.OOB) && msg.setTransientFlagIfAbsent(Message.TransientFlag.OOB_DELIVERED))
    oob_batch.add(msg);

protected void handleXmitRequest(Address sender, SeqnoList missing) {
  if(is_trace)
    log.trace("%s <-- XMIT(%s: #%s)", local_addr, sender, missing);
  SenderEntry entry=send_table.get(sender);
  xmit_reqs_received.add(missing.size());
  Table<Message> win=entry != null? entry.msgs : null;
  if(win != null) {
    for(long seqno: missing) {
      Message msg=win.get(seqno);
      if(msg == null) {
        if(log.isWarnEnabled() && log_not_found_msgs && !local_addr.equals(sender) && seqno > win.getLow())
          log.warn(Util.getMessage("MessageNotFound"), local_addr, sender, seqno);
        continue;
      }
      down_prot.down(msg);
      xmit_rsps_sent.increment();
    }
  }
}

/** Called when the sender of a message is the local member. In this case, we don't need to add the message
 * to the table as the sender already did that */
protected void handleDataReceivedFromSelf(final Address sender, long seqno, Message msg) {
  Entry entry=send_table.get(sender);
  if(entry == null || entry.state() == State.CLOSED) {
    log.warn("%s: entry not found for %s; dropping message", local_addr, sender);
    return;
  }
  update(entry, 1);
  final Table<Message> win=entry.msgs;
  // An OOB message is passed up immediately. Later, when remove() is called, we discard it. This affects ordering !
  // http://jira.jboss.com/jira/browse/JGRP-377
  if(msg.isFlagSet(Message.Flag.OOB)) {
    msg=win.get(seqno); // we *have* to get a message, because loopback means we didn't add it to win !
    if(msg != null && msg.isFlagSet(Message.Flag.OOB) && msg.setTransientFlagIfAbsent(Message.TransientFlag.OOB_DELIVERED))
      deliverMessage(msg, sender, seqno);
    // we don't steal work if the message is internal (https://issues.jboss.org/browse/JGRP-1733)
    if(msg != null && msg.isFlagSet(Message.Flag.INTERNAL)) {
      processInternalMessage(win, sender);
      return;
    }
  }
  removeAndDeliver(win, sender);
}

/**
 * We need to resend the first message with our conn_id
 * @param sender
 */
protected void handleResendingOfFirstMessage(Address sender, int timestamp) {
  log.trace("%s <-- SEND_FIRST_SEQNO(%s)", local_addr, sender);
  SenderEntry entry=send_table.get(sender);
  Table<Message> win=entry != null? entry.msgs : null;
  if(win == null) {
    log.warn(Util.getMessage("SenderNotFound"), local_addr, sender);
    return;
  }
  if(!entry.updateLastTimestamp(timestamp))
    return;
  Message rsp=win.get(win.getLow() +1);
  if(rsp != null) {
    // We need to copy the UnicastHeader and put it back into the message because Message.copy() doesn't copy
    // the headers and therefore we'd modify the original message in the sender retransmission window
    // (https://jira.jboss.org/jira/browse/JGRP-965)
    Message copy=rsp.copy();
    UnicastHeader3 hdr=copy.getHeader(this.id);
    UnicastHeader3 newhdr=hdr.copy();
    newhdr.first=true;
    copy.putHeader(this.id, newhdr);
    down_prot.down(copy);
  }
}

for(LongTuple<Message> tuple: msgs) {
  long    seq=tuple.getVal1();
  Message msg=buf.get(seq); // we *have* to get the message, because loopback means we didn't add it to win !
  if(msg != null && msg.isFlagSet(Message.Flag.OOB) && msg.setTransientFlagIfAbsent(Message.TransientFlag.OOB_DELIVERED))
    oob_batch.add(msg);

/**
 * Retransmits messsages first_seqno to last_seqno from original_sender from xmit_table to xmit_requester,
 * called when XMIT_REQ is received.
 * @param xmit_requester The sender of the XMIT_REQ, we have to send the requested copy of the message to this address
 * @param missing_msgs A list of seqnos that have to be retransmitted
 * @param original_sender The member who originally sent the messsage. Guaranteed to be non-null
 */
protected void handleXmitReq(Address xmit_requester, SeqnoList missing_msgs, Address original_sender) {
  log.trace("%s: received xmit request from %s for %s%s", local_addr, xmit_requester, original_sender, missing_msgs);
  if(stats)
    xmit_reqs_received.add(missing_msgs.size());
  Table<Message> buf=xmit_table.get(original_sender);
  if(buf == null) {
    log.error(Util.getMessage("SenderNotFound"), local_addr, original_sender);
    return;
  }
  for(long i: missing_msgs) {
    Message msg=buf.get(i);
    if(msg == null) {
      if(log.isWarnEnabled() && log_not_found_msgs && !local_addr.equals(xmit_requester) && i > buf.getLow())
        log.warn(Util.getMessage("MessageNotFound"), local_addr, original_sender, i);
      continue;
    }
    if(is_trace)
      log.trace(local_addr + ": resending " + original_sender + "::" + i);
    sendXmitRsp(xmit_requester, msg);
  }
}

msg=buf.get(hdr.seqno); // we *have* to get a message, because loopback means we didn't add it to win !
if(msg != null && msg.isFlagSet(Message.Flag.OOB) && msg.setTransientFlagIfAbsent(Message.TransientFlag.OOB_DELIVERED))
  deliver(msg, sender, hdr.seqno, "OOB message");

for(LongTuple<Message> tuple: list) {
  long    seq=tuple.getVal1();
  Message msg=win.get(seq); // we *have* to get the message, because loopback means we didn't add it to win !
  if(msg != null && msg.isFlagSet(Message.Flag.OOB) && msg.setTransientFlagIfAbsent(Message.TransientFlag.OOB_DELIVERED))
    oob_batch.add(msg);

/** Called when the sender of a message is the local member. In this case, we don't need to add the message
 * to the table as the sender already did that */
protected void handleDataReceivedFromSelf(final Address sender, long seqno, Message msg) {
  Entry entry=send_table.get(sender);
  if(entry == null || entry.state() == State.CLOSED) {
    log.warn("%s: entry not found for %s; dropping message", local_addr, sender);
    return;
  }
  update(entry, 1);
  final Table<Message> win=entry.msgs;
  // An OOB message is passed up immediately. Later, when remove() is called, we discard it. This affects ordering !
  // http://jira.jboss.com/jira/browse/JGRP-377
  if(msg.isFlagSet(Message.Flag.OOB)) {
    msg=win.get(seqno); // we *have* to get a message, because loopback means we didn't add it to win !
    if(msg != null && msg.isFlagSet(Message.Flag.OOB) && msg.setTransientFlagIfAbsent(Message.TransientFlag.OOB_DELIVERED))
      deliverMessage(msg, sender, seqno);
    // we don't steal work if the message is internal (https://issues.jboss.org/browse/JGRP-1733)
    if(msg != null && msg.isFlagSet(Message.Flag.INTERNAL)) {
      processInternalMessage(win, sender);
      return;
    }
  }
  removeAndDeliver(win, sender);
}

Javadoc

Returns an element at seqno

Popular methods of Table

add
Adds elements from the list to the table
<init>
_add
_compact
Moves the contents of matrix down by the number of purged rows and resizes the matrix accordingly. T
capacity
Returns the total capacity in the matrix
compact
computeIndex
Computes and returns the index within a row for seqno
computeRow
Computes and returns the row index for seqno. The caller must hold the lock.
computeSize
Iterate from low to hr and add up non-null values. Caller must hold the lock.
findHighestSeqno
forEach
Iterates over the matrix with range [from .. to] (including from and to), and calls Visitor#visit(lo
getAdders

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