| /* |
| * 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.exec.store; |
| |
| import org.apache.calcite.schema.SchemaPlus; |
| import org.apache.drill.exec.ops.ViewExpansionContext; |
| import org.apache.drill.exec.server.options.OptionValue; |
| |
| import org.apache.drill.shaded.guava.com.google.common.base.Preconditions; |
| import org.apache.drill.shaded.guava.com.google.common.base.Strings; |
| |
| /** |
| * Contains information needed by {@link org.apache.drill.exec.store.AbstractSchema} implementations. |
| */ |
| public class SchemaConfig { |
| private final String userName; |
| private final SchemaConfigInfoProvider provider; |
| private final boolean ignoreAuthErrors; |
| |
| private SchemaConfig(final String userName, final SchemaConfigInfoProvider provider, final boolean ignoreAuthErrors) { |
| this.userName = userName; |
| this.provider = provider; |
| this.ignoreAuthErrors = ignoreAuthErrors; |
| } |
| |
| /** |
| * Create new builder. |
| * @param userName Name of the user accessing the storage sources. |
| * @param provider Implementation {@link SchemaConfigInfoProvider} |
| * @return |
| */ |
| public static Builder newBuilder(final String userName, final SchemaConfigInfoProvider provider) { |
| Preconditions.checkArgument(!Strings.isNullOrEmpty(userName), "A valid userName is expected"); |
| Preconditions.checkNotNull(provider, "Non-null SchemaConfigInfoProvider is expected"); |
| return new Builder(userName, provider); |
| } |
| |
| public static class Builder { |
| final String userName; |
| final SchemaConfigInfoProvider provider; |
| boolean ignoreAuthErrors; |
| |
| private Builder(final String userName, final SchemaConfigInfoProvider provider) { |
| this.userName = userName; |
| this.provider = provider; |
| } |
| |
| public Builder setIgnoreAuthErrors(boolean ignoreAuthErrors) { |
| this.ignoreAuthErrors = ignoreAuthErrors; |
| return this; |
| } |
| |
| public SchemaConfig build() { |
| return new SchemaConfig(userName, provider, ignoreAuthErrors); |
| } |
| } |
| |
| /** |
| * @return User whom to impersonate as while creating {@link SchemaPlus} instances |
| * interact with the underlying storage. |
| */ |
| public String getUserName() { |
| return userName; |
| } |
| |
| /** |
| * @return Should ignore if authorization errors are reported while {@link SchemaPlus} |
| * instances interact with the underlying storage. |
| */ |
| public boolean getIgnoreAuthErrors() { |
| return ignoreAuthErrors; |
| } |
| |
| public OptionValue getOption(String optionKey) { |
| return provider.getOption(optionKey); |
| } |
| |
| public ViewExpansionContext getViewExpansionContext() { |
| return provider.getViewExpansionContext(); |
| } |
| |
| /** |
| * Interface to implement to provide required info for {@link org.apache.drill.exec.store.SchemaConfig} |
| */ |
| public interface SchemaConfigInfoProvider { |
| ViewExpansionContext getViewExpansionContext(); |
| |
| SchemaPlus getRootSchema(String userName); |
| |
| String getQueryUserName(); |
| |
| OptionValue getOption(String optionKey); |
| } |
| } |