Examples with WILDCARD javax.management.ObjectName.WILDCARD used on opensource projects

Example 1 with WILDCARD

use of javax.management.ObjectName.WILDCARD in project presto by prestodb.

the class JmxMetadata method getJmxTableHandle.

private JmxTableHandle getJmxTableHandle(SchemaTableName tableName) {
    try {
        String canonicalName = new ObjectName(tableName.getTableName()).getCanonicalName();
        Optional<ObjectName> objectName = mbeanServer.queryNames(WILDCARD, null).stream().filter(name -> canonicalName.equalsIgnoreCase(name.getCanonicalName())).findFirst();
        if (!objectName.isPresent()) {
            return null;
        }
        MBeanInfo mbeanInfo = mbeanServer.getMBeanInfo(objectName.get());
        ImmutableList.Builder<JmxColumnHandle> columns = ImmutableList.builder();
        columns.add(new JmxColumnHandle(NODE_COLUMN_NAME, createUnboundedVarcharType()));
        // Since this method is being called on all nodes in the cluster, we must ensure (by sorting)
        // that attributes are in the same order on all of them.
        Arrays.stream(mbeanInfo.getAttributes()).filter(MBeanAttributeInfo::isReadable).map(attribute -> new JmxColumnHandle(attribute.getName(), getColumnType(attribute))).sorted((column1, column2) -> column1.getColumnName().compareTo(column2.getColumnName())).forEach(columns::add);
        return new JmxTableHandle(objectName.get().toString(), columns.build(), true);
    } catch (JMException e) {
        return null;
    }
}