Examples of ZNode

com.linkedin.helix.store.zk.ZNode
com.trendmicro.codi.ZNode
org.apache.hdt.core.internal.model.ZNode
A representation of the model object 'ZNode'.
The following features are supported:
- {@link org.apache.hdt.core.internal.model.ZNode#getChildren Children}
- {@link org.apache.hdt.core.internal.model.ZNode#getLastRefresh Last Refresh}
- {@link org.apache.hdt.core.internal.model.ZNode#isRefreshing Refreshing}
- {@link org.apache.hdt.core.internal.model.ZNode#isEphermeral Ephermeral}
- {@link org.apache.hdt.core.internal.model.ZNode#getCreationId Creation Id}
- {@link org.apache.hdt.core.internal.model.ZNode#getModifiedId Modified Id}
- {@link org.apache.hdt.core.internal.model.ZNode#getCreationTime Creation Time}
- {@link org.apache.hdt.core.internal.model.ZNode#getModifiedTime Modified Time}
- {@link org.apache.hdt.core.internal.model.ZNode#getVersion Version}
- {@link org.apache.hdt.core.internal.model.ZNode#getChildrenVersion Children Version}
- {@link org.apache.hdt.core.internal.model.ZNode#getAclVersion Acl Version}
- {@link org.apache.hdt.core.internal.model.ZNode#getEphermalOwnerSessionId Ephermal Owner Session Id}
- {@link org.apache.hdt.core.internal.model.ZNode#getDataLength Data Length}
- {@link org.apache.hdt.core.internal.model.ZNode#getChildrenCount Children Count}
- {@link org.apache.hdt.core.internal.model.ZNode#getParent Parent}
- {@link org.apache.hdt.core.internal.model.ZNode#getNodeName Node Name}
- {@link org.apache.hdt.core.internal.model.ZNode#isSequential Sequential}
@see org.apache.hdt.core.internal.model.HadoopPackage#getZNode() @model @generated
org.apache.helix.store.zk.ZNode
org.projectx.zookeeper.ZNode
A representation of a Zookeeper ZNode @author Erez Mazor (erezmazor@gmail.com)

Examples of org.apache.helix.store.zk.ZNode

    }


    // everything in cache is also in map
    for (String path : cache.keySet())
    {
      ZNode cacheNode = cache.get(path);
      ZNode zkNode = zkMap.get(path);


      if (zkNode == null)
      {
        // in cache but not on zk
        System.err.println("path: " + path + " in cache but not on zk: inCacheNode: "
            + cacheNode);
        return false;
      }


      if ((zkNode.getData() == null && cacheNode.getData() != null)
          || (zkNode.getData() != null && cacheNode.getData() == null)
          || (zkNode.getData() != null && cacheNode.getData() != null && !zkNode.getData()
                                                                                .equals(cacheNode.getData())))
      {
        // data not equal
        System.err.println("data mismatch on path: " + path + ", inCache: "
            + cacheNode.getData() + ", onZk: " + zkNode.getData());
        return false;
      }


      if ((zkNode.getChildSet() == null && cacheNode.getChildSet() != null)
          || (zkNode.getChildSet() != null && cacheNode.getChildSet() == null)
          || (zkNode.getChildSet() != null && cacheNode.getChildSet() != null && !zkNode.getChildSet()
                                                                                        .equals(cacheNode.getChildSet())))
      {
        // childSet not equal
        System.err.println("childSet mismatch on path: " + path + ", inCache: "
            + cacheNode.getChildSet() + ", onZk: " + zkNode.getChildSet());
        return false;
      }


      if (needVerifyStat && pathsExcludeForStat != null
          && !pathsExcludeForStat.contains(path))
      {
        if (cacheNode.getStat() == null || !zkNode.getStat().equals(cacheNode.getStat()))
        {
          // stat not equal
          System.err.println("Stat mismatch on path: " + path + ", inCache: "
              + cacheNode.getStat() + ", onZk: " + zkNode.getStat());
          return false;
        }
      }
    }

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Examples of org.apache.helix.store.zk.ZNode

    String serverPath = prependChroot(clientPath);


    Cache<T> cache = getCache(serverPath);
    if (cache != null) {
      T record = null;
      ZNode znode = cache.get(serverPath);


      if (znode != null) {
        // TODO: shall return a deep copy instead of reference
        record = ((T) znode.getData());
        if (stat != null) {
          DataTree.copyStat(znode.getStat(), stat);
        }
        return record;


      } else {
        // if cache miss, fall back to zk and update cache

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Examples of org.apache.helix.store.zk.ZNode

    String serverPath = prependChroot(clientPath);


    Cache<T> cache = getCache(serverPath);
    if (cache != null) {
      Stat stat = new Stat();
      ZNode znode = cache.get(serverPath);


      if (znode != null) {
        return znode.getStat();


      } else {
        // if cache miss, fall back to zk and update cache
        try {
          cache.lockWrite();

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Examples of org.apache.helix.store.zk.ZNode

    Cache<T> cache = getCache(serverPaths);
    if (cache != null) {
      try {
        cache.lockRead();
        for (int i = 0; i < size; i++) {
          ZNode zNode = cache.get(serverPaths.get(i));
          if (zNode != null) {
            // TODO: shall return a deep copy instead of reference
            records.set(i, (T) zNode.getData());
            readStats.set(i, zNode.getStat());
          } else {
            needRead = true;
            needReads[i] = true;
          }
        }

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Examples of org.apache.helix.store.zk.ZNode

    String serverParentPath = prependChroot(parentPath);


    Cache<T> cache = getCache(serverParentPath);
    if (cache != null) {
      // System.out.println("zk-cache");
      ZNode znode = cache.get(serverParentPath);


      if (znode != null && znode.getChildSet() != Collections.<String> emptySet()) {
        // System.out.println("zk-cache-hit: " + parentPath);
        List<String> childNames = new ArrayList<String>(znode.getChildSet());
        Collections.sort(childNames);
        return childNames;
      } else {
        // System.out.println("zk-cache-miss");
        try {

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Examples of org.apache.helix.store.zk.ZNode

    System.out.println("START:Print cache");
    TreeMap<String, ZNode> map = new TreeMap<String, ZNode>();
    map.putAll(cache);


    for (String key : map.keySet()) {
      ZNode node = map.get(key);
      TreeSet<String> childSet = new TreeSet<String>();
      childSet.addAll(node.getChildSet());
      System.out.print(key + "=" + node.getData() + ", " + childSet + ", "
          + (node.getStat() == null ? "null\n" : node.getStat()));
    }
    System.out.println("END:Print cache");
  }

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Examples of org.apache.helix.store.zk.ZNode

  public static void readZkRecursive(String path, Map<String, ZNode> map, ZkClient zkclient) {
    try {
      Stat stat = new Stat();
      ZNRecord record = zkclient.readData(path, stat);
      List<String> childNames = zkclient.getChildren(path);
      ZNode node = new ZNode(path, record, stat);
      node.addChildren(childNames);
      map.put(path, node);


      for (String childName : childNames) {
        String childPath = path + "/" + childName;
        readZkRecursive(childPath, map, zkclient);

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Examples of org.apache.helix.store.zk.ZNode

    try {
      Stat stat = new Stat();
      ZNRecord record = zkAccessor.get(path, stat, 0);
      List<String> childNames = zkAccessor.getChildNames(path, 0);
      // System.out.println("childNames: " + childNames);
      ZNode node = new ZNode(path, record, stat);
      node.addChildren(childNames);
      map.put(path, node);


      if (childNames != null && !childNames.isEmpty()) {
        for (String childName : childNames) {
          String childPath = path + "/" + childName;

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Examples of org.apache.helix.store.zk.ZNode

      return false;
    }


    // everything in cache is also in map
    for (String path : cache.keySet()) {
      ZNode cacheNode = cache.get(path);
      ZNode zkNode = zkMap.get(path);


      if (zkNode == null) {
        // in cache but not on zk
        System.err.println("path: " + path + " in cache but not on zk: inCacheNode: " + cacheNode);
        return false;
      }


      if ((zkNode.getData() == null && cacheNode.getData() != null)
          || (zkNode.getData() != null && cacheNode.getData() == null)
          || (zkNode.getData() != null && cacheNode.getData() != null && !zkNode.getData().equals(
              cacheNode.getData()))) {
        // data not equal
        System.err.println("data mismatch on path: " + path + ", inCache: " + cacheNode.getData()
            + ", onZk: " + zkNode.getData());
        return false;
      }


      if ((zkNode.getChildSet() == null && cacheNode.getChildSet() != null)
          || (zkNode.getChildSet() != null && cacheNode.getChildSet() == null)
          || (zkNode.getChildSet() != null && cacheNode.getChildSet() != null && !zkNode
              .getChildSet().equals(cacheNode.getChildSet()))) {
        // childSet not equal
        System.err.println("childSet mismatch on path: " + path + ", inCache: "
            + cacheNode.getChildSet() + ", onZk: " + zkNode.getChildSet());
        return false;
      }


      if (needVerifyStat && pathsExcludeForStat != null && !pathsExcludeForStat.contains(path)) {
        if (cacheNode.getStat() == null || !zkNode.getStat().equals(cacheNode.getStat())) {
          // stat not equal
          System.err.println("Stat mismatch on path: " + path + ", inCache: " + cacheNode.getStat()
              + ", onZk: " + zkNode.getStat());
          return false;
        }
      }
    }

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Examples of org.apache.helix.store.zk.ZNode

  public void update(String path, T data, Stat stat) {
    String parentPath = HelixUtil.getZkParentPath(path);
    String childName = HelixUtil.getZkName(path);
    addToParentChildSet(parentPath, childName);


    ZNode znode = _cache.get(path);
    if (znode == null) {
      _cache.put(path, new ZNode(path, data, stat));
    } else {
      znode.setData(data);
      znode.setStat(stat);
    }
  }

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