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Apache ZooKeeper 3.7.0 Server Source Code
Apache ZooKeeper is an open-source server which enables highly
reliable distributed coordination.
Apache ZooKeeper Server Source Code files are provided in the source packge (apache-zookeeper-3.7.0.tar.gz). You can download it at Apache ZooKeeper Website.
You can also browse Apache ZooKeeper Server Source Code below:
✍: FYIcenter.com
⏎ org/apache/zookeeper/server/TxnLogProposalIterator.java
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.zookeeper.server; import java.io.IOException; import java.util.Iterator; import org.apache.zookeeper.server.persistence.TxnLog.TxnIterator; import org.apache.zookeeper.server.persistence.Util; import org.apache.zookeeper.server.quorum.Leader; import org.apache.zookeeper.server.quorum.Leader.Proposal; import org.apache.zookeeper.server.quorum.QuorumPacket; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * This class provides an iterator interface to access Proposal deserialized * from on-disk txnlog. The iterator deserializes one proposal at a time * to reduce memory footprint. Note that the request part of the proposal * is not initialized and set to null since we don't need it during * follower sync-up. * */ public class TxnLogProposalIterator implements Iterator<Proposal> { private static final Logger LOG = LoggerFactory.getLogger(TxnLogProposalIterator.class); public static final TxnLogProposalIterator EMPTY_ITERATOR = new TxnLogProposalIterator(); private boolean hasNext = false; private TxnIterator itr; @Override public boolean hasNext() { return hasNext; } /** * Proposal returned by this iterator has request part set to null, since * it is not used for follower sync-up. */ @Override public Proposal next() { Proposal p = new Proposal(); try { byte[] serializedData = Util.marshallTxnEntry(itr.getHeader(), itr.getTxn(), itr.getDigest()); QuorumPacket pp = new QuorumPacket(Leader.PROPOSAL, itr.getHeader().getZxid(), serializedData, null); p.packet = pp; p.request = null; // This is the only place that can throw IO exception hasNext = itr.next(); } catch (IOException e) { LOG.error("Unable to read txnlog from disk", e); hasNext = false; } return p; } @Override public void remove() { throw new UnsupportedOperationException(); } /** * Close the files and release the resources which are used for iterating * transaction records */ public void close() { if (itr != null) { try { itr.close(); } catch (IOException ioe) { LOG.warn("Error closing file iterator", ioe); } } } private TxnLogProposalIterator() { } public TxnLogProposalIterator(TxnIterator itr) { if (itr != null) { this.itr = itr; hasNext = (itr.getHeader() != null); } } }
⏎ org/apache/zookeeper/server/TxnLogProposalIterator.java
Or download all of them as a single archive file:
File name: zookeeper-server-3.7.0-fyi.zip File size: 871011 bytes Release date: 2021-05-17 Download
⇒ Apache ZooKeeper 3.7.0 Jute Source Code
⇐ Download Apache ZooKeeper 3.7.0 Source Package
2022-11-16, 25690👍, 0💬
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