AccessControlReferences.java

/*
 * Licensed 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 com.facebook.presto.spi.analyzer;

import com.facebook.presto.common.QualifiedObjectName;
import com.facebook.presto.common.Subfield;
import com.facebook.presto.spi.MaterializedViewDefinition;

import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Set;

import static java.util.Collections.unmodifiableMap;
import static java.util.Objects.requireNonNull;

public class AccessControlReferences
{
    private final Map<AccessControlRole, Set<AccessControlInfoForTable>> tableReferences;
    private final Map<AccessControlInfo, Map<QualifiedObjectName, Set<Subfield>>> tableColumnAndSubfieldReferencesForAccessControl;
    private AccessControlInfo queryAccessControlInfo;
    private final Map<QualifiedObjectName, ViewDefinition> viewDefinitions;
    private final Map<QualifiedObjectName, MaterializedViewDefinition> materializedViewDefinitions;

    public AccessControlReferences()
    {
        tableReferences = new LinkedHashMap<>();
        tableColumnAndSubfieldReferencesForAccessControl = new LinkedHashMap<>();
        viewDefinitions = new LinkedHashMap<>();
        materializedViewDefinitions = new LinkedHashMap<>();
    }

    public Map<AccessControlRole, Set<AccessControlInfoForTable>> getTableReferences()
    {
        return unmodifiableMap(tableReferences);
    }

    public void addTableReference(AccessControlRole role, AccessControlInfoForTable accessControlInfoForTable)
    {
        tableReferences.computeIfAbsent(role, r -> new LinkedHashSet<>()).add(accessControlInfoForTable);
    }

    public Map<AccessControlInfo, Map<QualifiedObjectName, Set<Subfield>>> getTableColumnAndSubfieldReferencesForAccessControl()
    {
        return tableColumnAndSubfieldReferencesForAccessControl;
    }

    public void addTableColumnAndSubfieldReferencesForAccessControl(Map<AccessControlInfo, Map<QualifiedObjectName, Set<Subfield>>> tableColumnAndSubfieldReferencesForAccessControl)
    {
        this.tableColumnAndSubfieldReferencesForAccessControl.putAll((requireNonNull(tableColumnAndSubfieldReferencesForAccessControl, "tableColumnAndSubfieldReferencesForAccessControl is null")));
    }

    public void setQueryAccessControlInfo(AccessControlInfo queryAccessControlInfo)
    {
        if (this.queryAccessControlInfo == null) {
            this.queryAccessControlInfo = requireNonNull(queryAccessControlInfo, "queryAccessControlInfo is null");
        }
    }

    public AccessControlInfo getQueryAccessControlInfo()
    {
        return queryAccessControlInfo;
    }

    public void addViewDefinitionReference(QualifiedObjectName viewDefinitionName, ViewDefinition viewDefinition)
    {
        viewDefinitions.put(viewDefinitionName, viewDefinition);
    }

    public void addMaterializedViewDefinitionReference(QualifiedObjectName viewDefinitionName, MaterializedViewDefinition materializedViewDefinition)
    {
        materializedViewDefinitions.put(viewDefinitionName, materializedViewDefinition);
    }

    public Map<QualifiedObjectName, ViewDefinition> getViewDefinitions()
    {
        return unmodifiableMap(new LinkedHashMap<>(viewDefinitions));
    }

    public Map<QualifiedObjectName, MaterializedViewDefinition> getMaterializedViewDefinitions()
    {
        return unmodifiableMap(new LinkedHashMap<>(materializedViewDefinitions));
    }
}