jdk8-mips64-public/jdk: src/share/classes/com/sun/jndi/ldap/LdapRequest.java@ab2e99db6702 (annotated)

src/share/classes/com/sun/jndi/ldap/LdapRequest.java@ab2e99db6702 (annotated)

src/share/classes/com/sun/jndi/ldap/LdapRequest.java

Wed, 09 Sep 2020 14:19:14 -0400

author: zgu
date: Wed, 09 Sep 2020 14:19:14 -0400
changeset 14206: ab2e99db6702
parent 13707: b4522ab88a12
child 14222: 5a272e10d7e7
permissions: -rw-r--r--

8062947: Fix exception message to correctly represent LDAP connection failure
Reviewed-by: dfuchs, xyin, vtewari

 /*
  * Copyright (c) 1999, 2020, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Oracle in the LICENSE file that accompanied this code.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 package com.sun.jndi.ldap;
 import java.io.IOException;
 import java.util.concurrent.BlockingQueue;
 import java.util.concurrent.LinkedBlockingQueue;
 import javax.naming.CommunicationException;
 import javax.naming.NamingException;
 import java.util.concurrent.TimeUnit;
 final class LdapRequest {
     private final static BerDecoder EOF = new BerDecoder(new byte[]{}, -1, 0);
     private final static String CLOSE_MSG = "LDAP connection has been closed";
     private final static String TIMEOUT_MSG_FMT = "LDAP response read timed out, timeout used: %d ms.";
     LdapRequest next;   // Set/read in synchronized Connection methods
     final int msgId;          // read-only
     private final BlockingQueue<BerDecoder> replies;
     private volatile boolean cancelled;
     private volatile boolean closed;
     private volatile boolean completed;
     private final boolean pauseAfterReceipt;
     LdapRequest(int msgId, boolean pause, int replyQueueCapacity) {
         this.msgId = msgId;
         this.pauseAfterReceipt = pause;
         if (replyQueueCapacity == -1) {
             this.replies = new LinkedBlockingQueue<>();
         } else {
             this.replies = new LinkedBlockingQueue<>(8 * replyQueueCapacity / 10);
         }
     }
     void cancel() {
         cancelled = true;
         replies.offer(EOF);
     }
     synchronized void close() {
         closed = true;
         replies.offer(EOF);
     }
     private boolean isClosed() {
         return closed && (replies.size() == 0 || replies.peek() == EOF);
     }
     synchronized boolean addReplyBer(BerDecoder ber) {
         // check the closed boolean value here as we don't want anything
         // to be added to the queue after close() has been called.
         if (cancelled || closed) {
             return false;
         }
         // peek at the BER buffer to check if it is a SearchResultDone PDU
         try {
             ber.parseSeq(null);
             ber.parseInt();
             completed = (ber.peekByte() == LdapClient.LDAP_REP_RESULT);
         } catch (IOException e) {
             // ignore
         }
         ber.reset();
         // Add a new reply to the queue of unprocessed replies.
         try {
             replies.put(ber);
         } catch (InterruptedException e) {
             // ignore
         }
         return pauseAfterReceipt;
     }
     /**
      * Read reply BER
      * @param millis timeout, infinite if the value is negative
      * @return BerDecoder if reply was read successfully
      * @throws CommunicationException request has been canceled and request does not need to be abandoned
      * @throws NamingException request has been closed or timed out. Request does need to be abandoned
      * @throws InterruptedException LDAP operation has been interrupted
      */
     BerDecoder getReplyBer(long millis) throws NamingException,
                                                InterruptedException {
         if (cancelled) {
             throw new CommunicationException("Request: " + msgId +
                 " cancelled");
         }
         if (isClosed()) {
             throw new NamingException(CLOSE_MSG);
         }
         BerDecoder result = millis > 0 ?
                 replies.poll(millis, TimeUnit.MILLISECONDS) : replies.take();
         if (cancelled) {
             throw new CommunicationException("Request: " + msgId +
                 " cancelled");
         }
         // poll from 'replies' blocking queue ended-up with timeout
         if (result == null) {
             throw new NamingException(String.format(TIMEOUT_MSG_FMT, millis));
         }
         // Unexpected EOF can be caused by connection closure or cancellation
         if (result == EOF) {
             throw new NamingException(CLOSE_MSG);
         }
         return result;
     }
     boolean hasSearchCompleted() {
         return completed;
     }
 }

Mercurial > jdk8-mips64-public > jdk / annotate

src/share/classes/com/sun/jndi/ldap/LdapRequest.java@ab2e99db6702 (annotated)

src/share/classes/com/sun/jndi/ldap/LdapRequest.java