Example usage for org.apache.zookeeper ZooKeeper getACL

List of usage examples for org.apache.zookeeper ZooKeeper getACL

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Introduction

In this page you can find the example usage for org.apache.zookeeper ZooKeeper getACL.

Prototype

public List<ACL> getACL(final String path, Stat stat) throws KeeperException, InterruptedException

Source Link

Document

Return the ACL and stat of the node of the given path.

Usage

From source file:com.boundary.zoocreeper.Backup.java

License:Apache License

private void doBackup(ZooKeeper zk, JsonGenerator jgen, String path)
        throws KeeperException, InterruptedException, IOException {
    try {//from  ww  w.ja  va2 s  . c o  m
        final Stat stat = new Stat();
        List<ACL> acls = nullToEmpty(zk.getACL(path, stat));
        if (stat.getEphemeralOwner() != 0 && !options.backupEphemeral) {
            LOGGER.debug("Skipping ephemeral node: {}", path);
            return;
        }

        final Stat dataStat = new Stat();
        byte[] data = zk.getData(path, false, dataStat);
        for (int i = 0; stat.compareTo(dataStat) != 0 && i < options.numRetries; i++) {
            LOGGER.warn("Retrying getACL / getData to read consistent state");
            acls = zk.getACL(path, stat);
            data = zk.getData(path, false, dataStat);
        }
        if (stat.compareTo(dataStat) != 0) {
            throw new IllegalStateException("Unable to read consistent data for znode: " + path);
        }
        LOGGER.debug("Backing up node: {}", path);
        dumpNode(jgen, path, stat, acls, data);
        final List<String> childPaths = nullToEmpty(zk.getChildren(path, false, null));
        Collections.sort(childPaths);
        for (String childPath : childPaths) {
            final String fullChildPath = createFullPath(path, childPath);
            if (!this.options.isPathExcluded(LOGGER, fullChildPath)) {
                if (this.options.isPathIncluded(LOGGER, fullChildPath)) {
                    doBackup(zk, jgen, fullChildPath);
                }
            }
        }
    } catch (NoNodeException e) {
        LOGGER.warn("Node disappeared during backup: {}", path);
    }
}

From source file:com.github.mosuka.zookeeper.nicli.command.GetAclCommand.java

License:Apache License

@Override
public void run(Map<String, Object> parameters) {
    try {/*www .  jav a 2s  .c  o  m*/
        String path = (String) parameters.get("path");
        boolean withStat = parameters.containsKey("with_stat") ? (Boolean) parameters.get("with_stat")
                : DEFAULT_WITH_STAT;

        ZooKeeper zk = getZookeeperConnection().getZooKeeper();

        Stat stat = new Stat();
        List<ACL> acl = zk.getACL(path, stat);

        if (acl != null) {
            putResponse("acl", ACLUtil.acl2List(acl));
        }
        if (stat != null && withStat) {
            putResponse("stat", StatUtil.stat2Map(stat));
        }

        setStatus(Command.STATUS_SUCCESS);
        setMessage(Command.SUCCESS_MESSAGE);
    } catch (KeeperException e) {
        setStatus(Command.STATUS_ERROR);
        setMessage(e.getMessage());
    } catch (InterruptedException e) {
        setStatus(Command.STATUS_ERROR);
        setMessage(e.getMessage());
    } catch (ClassCastException e) {
        setStatus(Command.STATUS_ERROR);
        setMessage(e.getMessage());
    } catch (NullPointerException e) {
        setStatus(Command.STATUS_ERROR);
        setMessage(e.getMessage());
    }
}

From source file:org.apache.bookkeeper.bookie.EnableZkSecurityBasicTest.java

License:Apache License

private void checkACls(ZooKeeper zk, String path) throws KeeperException, InterruptedException {
    List<String> children = zk.getChildren(path, null);
    for (String child : children) {
        String fullPath = path.equals("/") ? path + child : path + "/" + child;
        List<ACL> acls = zk.getACL(fullPath, new Stat());
        checkACls(zk, fullPath);//ww  w .  ja  v a 2s.  com

        if (!fullPath.startsWith("/zookeeper") // skip zookeeper internal nodes
                && !fullPath.equals("/ledgers") // node created by test setup
                && !fullPath.equals("/ledgers/" + BookKeeperConstants.AVAILABLE_NODE) // node created by test setup
        ) {
            assertEquals(1, acls.size());
            assertEquals(31, acls.get(0).getPerms());
            assertEquals(31, acls.get(0).getPerms());
            assertEquals("unexpected ACLS on " + fullPath + ": " + acls.get(0), "foo",
                    acls.get(0).getId().getId());
            assertEquals("unexpected ACLS on " + fullPath + ": " + acls.get(0), "sasl",
                    acls.get(0).getId().getScheme());
        }
    }
}

From source file:org.apache.bookkeeper.zookeeper.BkZooKeeperClient.java

License:Apache License

@Override
public List<ACL> getACL(final String path, final Stat stat) throws KeeperException, InterruptedException {
    return BkZooWorker.syncCallWithRetries(this, new ZooCallable<List<ACL>>() {

        @Override//w ww. ja va  2  s . com
        public String toString() {
            return String.format("getACL (%s, stat = %s)", path, stat);
        }

        @Override
        public List<ACL> call() throws KeeperException, InterruptedException {
            ZooKeeper zkHandle = zk.get();
            if (null == zkHandle) {
                return BkZooKeeperClient.super.getACL(path, stat);
            }
            return zkHandle.getACL(path, stat);
        }

    }, operationRetryPolicy, rateLimiter, getACLStats);
}

From source file:org.apache.bookkeeper.zookeeper.ZooKeeperClient.java

License:Apache License

@Override
public List<ACL> getACL(final String path, final Stat stat) throws KeeperException, InterruptedException {
    return ZooWorker.syncCallWithRetries(this, new ZooCallable<List<ACL>>() {

        @Override/*from w  ww. java2  s  .co  m*/
        public String toString() {
            return String.format("getACL (%s, stat = %s)", path, stat);
        }

        @Override
        public List<ACL> call() throws KeeperException, InterruptedException {
            ZooKeeper zkHandle = zk.get();
            if (null == zkHandle) {
                return ZooKeeperClient.super.getACL(path, stat);
            }
            return zkHandle.getACL(path, stat);
        }

    }, operationRetryPolicy, rateLimiter, getACLStats);
}

From source file:org.apache.hadoop.hbase.TestZooKeeper.java

License:Apache License

/**
 * A test for HBASE-3238// w  ww  .  j  a va 2 s . c  o m
 * @throws IOException A connection attempt to zk failed
 * @throws InterruptedException One of the non ZKUtil actions was interrupted
 * @throws KeeperException Any of the zookeeper connections had a
 * KeeperException
 */
@Test
public void testCreateSilentIsReallySilent() throws InterruptedException, KeeperException, IOException {
    Configuration c = TEST_UTIL.getConfiguration();

    String aclZnode = "/aclRoot";
    String quorumServers = ZKConfig.getZKQuorumServersString(c);
    int sessionTimeout = 5 * 1000; // 5 seconds
    ZooKeeper zk = new ZooKeeper(quorumServers, sessionTimeout, EmptyWatcher.instance);
    zk.addAuthInfo("digest", "hbase:rox".getBytes());

    // Assumes the  root of the ZooKeeper space is writable as it creates a node
    // wherever the cluster home is defined.
    ZooKeeperWatcher zk2 = new ZooKeeperWatcher(TEST_UTIL.getConfiguration(), "testCreateSilentIsReallySilent",
            null);

    // Save the previous ACL
    Stat s = null;
    List<ACL> oldACL = null;
    while (true) {
        try {
            s = new Stat();
            oldACL = zk.getACL("/", s);
            break;
        } catch (KeeperException e) {
            switch (e.code()) {
            case CONNECTIONLOSS:
            case SESSIONEXPIRED:
            case OPERATIONTIMEOUT:
                LOG.warn("Possibly transient ZooKeeper exception", e);
                Threads.sleep(100);
                break;
            default:
                throw e;
            }
        }
    }

    // I set this acl after the attempted creation of the cluster home node.
    // Add retries in case of retryable zk exceptions.
    while (true) {
        try {
            zk.setACL("/", ZooDefs.Ids.CREATOR_ALL_ACL, -1);
            break;
        } catch (KeeperException e) {
            switch (e.code()) {
            case CONNECTIONLOSS:
            case SESSIONEXPIRED:
            case OPERATIONTIMEOUT:
                LOG.warn("Possibly transient ZooKeeper exception: " + e);
                Threads.sleep(100);
                break;
            default:
                throw e;
            }
        }
    }

    while (true) {
        try {
            zk.create(aclZnode, null, ZooDefs.Ids.CREATOR_ALL_ACL, CreateMode.PERSISTENT);
            break;
        } catch (KeeperException e) {
            switch (e.code()) {
            case CONNECTIONLOSS:
            case SESSIONEXPIRED:
            case OPERATIONTIMEOUT:
                LOG.warn("Possibly transient ZooKeeper exception: " + e);
                Threads.sleep(100);
                break;
            default:
                throw e;
            }
        }
    }
    zk.close();
    ZKUtil.createAndFailSilent(zk2, aclZnode);

    // Restore the ACL
    ZooKeeper zk3 = new ZooKeeper(quorumServers, sessionTimeout, EmptyWatcher.instance);
    zk3.addAuthInfo("digest", "hbase:rox".getBytes());
    try {
        zk3.setACL("/", oldACL, -1);
    } finally {
        zk3.close();
    }
}

From source file:org.apache.nifi.toolkit.zkmigrator.ZooKeeperMigrator.java

License:Apache License

private DataStatAclNode retrieveNode(ZooKeeper zooKeeper, String path) {
    Preconditions.checkNotNull(zooKeeper, "ZooKeeper client must not be null");
    Preconditions.checkNotNull(path, "path must not be null");
    final Stat stat = new Stat();
    final byte[] data;
    final List<ACL> acls;
    final long ephemeralOwner;
    try {/*from www.j av  a 2s.c om*/
        data = zooKeeper.getData(path, false, stat);
        acls = zooKeeper.getACL(path, stat);
        ephemeralOwner = stat.getEphemeralOwner();
    } catch (InterruptedException | KeeperException e) {
        if (e instanceof InterruptedException) {
            Thread.currentThread().interrupt();
        }
        throw new RuntimeException(String
                .format("unable to get data, ACLs, and stats from %s for node at path %s", zooKeeper, path), e);
    }
    return new DataStatAclNode(path, data, stat, acls, ephemeralOwner);
}

From source file:org.apache.solr.security.hadoop.TestZkAclsWithHadoopAuth.java

License:Apache License

private void checkSecurityACLs(ZooKeeper keeper, String path) throws Exception {
    List<ACL> acls = keeper.getACL(path, new Stat());
    String message = String.format(Locale.ROOT, "Path %s ACLs found %s", path, acls);
    assertEquals(message, 1, acls.size());
    assertTrue(message, acls.contains(new ACL(ZooDefs.Perms.ALL, SOLR_ZK_ID)));
}

From source file:org.apache.solr.security.hadoop.TestZkAclsWithHadoopAuth.java

License:Apache License

private void checkNonSecurityACLs(ZooKeeper keeper, String path) throws Exception {
    List<ACL> acls = keeper.getACL(path, new Stat());
    String message = String.format(Locale.ROOT, "Path %s ACLs found %s", path, acls);
    assertEquals(message, 2, acls.size());
    assertTrue(message, acls.contains(new ACL(ZooDefs.Perms.ALL, SOLR_ZK_ID)));
    assertTrue(message, acls.contains(new ACL(ZooDefs.Perms.READ, FOO_ZK_ID)));
}