Example usage for org.apache.solr.common.cloud ZkStateReader ZkStateReader

Introduction

In this page you can find the example usage for org.apache.solr.common.cloud ZkStateReader ZkStateReader.

Prototype

public ZkStateReader(SolrZkClient zkClient) 

Source Link

Usage

From source file:uk.bl.wa.apache.solr.hadoop.ZooKeeperInspector.java

License:Apache License

public DocCollection extractDocCollection(String zkHost, String collection) {
    if (collection == null) {
        throw new IllegalArgumentException("collection must not be null");
    }/*ww w  .j a v a  2 s .co m*/
    SolrZkClient zkClient = getZkClient(zkHost);

    try {
        ZkStateReader zkStateReader = new ZkStateReader(zkClient);
        try {
            // first check for alias
            collection = checkForAlias(zkClient, collection);
            zkStateReader.createClusterStateWatchersAndUpdate();
        } catch (Exception e) {
            throw new IllegalArgumentException(
                    "Cannot find expected information for SolrCloud in ZooKeeper: " + zkHost, e);
        }

        try {
            return zkStateReader.getClusterState().getCollection(collection);
        } catch (SolrException e) {
            throw new IllegalArgumentException(
                    "Cannot find collection '" + collection + "' in ZooKeeper: " + zkHost, e);
        }
    } finally {
        zkClient.close();
    }
}

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