Github user laurentgo commented on a diff in the pull request: https://github.com/apache/drill/pull/578#discussion_r85792866 --- Diff: common/src/main/java/org/apache/drill/common/config/ConnectionParameters.java --- @@ -0,0 +1,153 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.drill.common.config; + +import com.google.common.collect.ImmutableSet; +import org.apache.drill.exec.proto.UserProtos.Property; +import org.apache.drill.exec.proto.UserProtos.UserProperties; + +import java.util.Properties; + +public final class ConnectionParameters { + private static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(ConnectionParameters.class); + + // PROPERTY KEYS + // definitions should be in lowercase + + public static final String ZOOKEEPER_CONNECTION = "zk"; + + public static final String DRILLBIT_CONNECTION = "drillbit"; + + public static final String SCHEMA = "schema"; + + public static final String USER = "user"; + + public static final String PASSWORD = "password"; + + public static final String IMPERSONATION_TARGET = "impersonation_target"; + + public static final String AUTH_MECHANISM = "auth"; + + public static final String SERVICE_PRINCIPAL = "principal"; + + public static final String SERVICE_NAME = "service_name"; + + public static final String SERVICE_HOST = "service_host"; + + public static final String REALM = "realm"; + + public static final String KEYTAB = "keytab"; + + // CONVENIENCE SETS OF PROPERTIES + + public static final ImmutableSet<String> ALLOWED_BY_CLIENT = + ImmutableSet.of(ZOOKEEPER_CONNECTION, DRILLBIT_CONNECTION, SCHEMA, USER, PASSWORD, IMPERSONATION_TARGET, + AUTH_MECHANISM, SERVICE_PRINCIPAL, SERVICE_NAME, SERVICE_HOST, REALM, KEYTAB); + + public static final ImmutableSet<String> ACCEPTED_BY_SERVER = ImmutableSet.of(SCHEMA, IMPERSONATION_TARGET); + + private final Properties properties; // keys must be lower case + + private ConnectionParameters(Properties properties) { + this.properties = properties; --- End diff -- for safety, shouldn't properties be copied or constructor made private (so that caller doesn't change it by mistake)?
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