Example usage for org.apache.cassandra.utils FBUtilities toString

Introduction

In this page you can find the example usage for org.apache.cassandra.utils FBUtilities toString.

Prototype

@Nonnull
public static String toString(@Nullable Map<?, ?> map) 

Source Link

Document

Make straing out of the given Map .

Usage

From source file:com.perpetumobile.bit.orm.cassandra.CliMain.java

License:Apache License

private void describeKeySpace(String keySpaceName, KsDef metadata) throws TException {
    NodeProbe probe = sessionState.getNodeProbe();

    // getting compaction manager MBean to displaying index building information
    CompactionManagerMBean compactionManagerMBean = (probe == null) ? null : probe.getCompactionManagerProxy();

    // Describe and display
    sessionState.out.println("Keyspace: " + keySpaceName + ":");
    try {/*w  ww  . ja v  a  2s  .  c  o m*/
        KsDef ks_def;
        ks_def = metadata == null ? thriftClient.describe_keyspace(keySpaceName) : metadata;
        sessionState.out.println("  Replication Strategy: " + ks_def.strategy_class);

        sessionState.out.println("  Durable Writes: " + ks_def.durable_writes);

        Map<String, String> options = ks_def.strategy_options;
        sessionState.out
                .println("    Options: [" + ((options == null) ? "" : FBUtilities.toString(options)) + "]");

        sessionState.out.println("  Column Families:");

        Collections.sort(ks_def.cf_defs, new CfDefNamesComparator());

        for (CfDef cf_def : ks_def.cf_defs)
            describeColumnFamily(ks_def, cf_def, probe);

        // compaction manager information
        if (compactionManagerMBean != null) {
            for (Map<String, String> info : compactionManagerMBean.getCompactions()) {
                // if ongoing compaction type is index build
                if (info.get("taskType").equals(OperationType.INDEX_BUILD.toString()))
                    continue;
                sessionState.out.printf("%nCurrently building index %s, completed %d of %d bytes.%n",
                        info.get("columnfamily"), info.get("bytesComplete"), info.get("totalBytes"));
            }
        }

        // closing JMX connection
        if (probe != null)
            probe.close();
    } catch (InvalidRequestException e) {
        sessionState.out.println("Invalid request: " + e);
    } catch (NotFoundException e) {
        sessionState.out.println("Keyspace " + keySpaceName + " could not be found.");
    } catch (IOException e) {
        sessionState.out.println("Error while closing JMX connection: " + e.getMessage());
    }
}

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