com.facebook.presto.sql.analyzer.MetadataHandle Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of presto-analyzer Show documentation
There is a newer version: 0.290
/*
 * 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.sql.analyzer;

import com.facebook.presto.common.QualifiedObjectName;
import com.facebook.presto.spi.MaterializedViewDefinition;
import com.facebook.presto.spi.analyzer.ViewDefinition;

import java.util.Map;
import java.util.Optional;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;

import static com.google.common.base.Preconditions.checkState;
import static com.google.common.base.Throwables.throwIfUnchecked;

public class MetadataHandle
{
    private boolean preProcessMetadataCalls;
    private final Map>> viewDefinitions = new ConcurrentHashMap<>();
    private final Map>> materializedViewDefinitions = new ConcurrentHashMap<>();
    private final Map> tableColumnsMetadata = new ConcurrentHashMap<>();

    public boolean isPreProcessMetadataCalls()
    {
        return preProcessMetadataCalls;
    }

    public void setPreProcessMetadataCalls(boolean preProcessMetadataCalls)
    {
        this.preProcessMetadataCalls = preProcessMetadataCalls;
    }

    public void addViewDefinition(QualifiedObjectName viewName, Future> viewDefinition)
    {
        this.viewDefinitions.putIfAbsent(viewName, viewDefinition);
    }

    public void addMaterializedViewDefinition(QualifiedObjectName viewName, Future> viewDefinition)
    {
        this.materializedViewDefinitions.putIfAbsent(viewName, viewDefinition);
    }

    public void addTableColumnMetadata(QualifiedObjectName tableName, Future tableColumnMetadata)
    {
        this.tableColumnsMetadata.putIfAbsent(tableName, tableColumnMetadata);
    }

    public Optional getViewDefinition(QualifiedObjectName viewName)
    {
        checkState(viewDefinitions.containsKey(viewName), "View " + viewName + " not found, the available view names are " + viewDefinitions.keySet());
        try {
            return viewDefinitions.get(viewName).get();
        }
        catch (InterruptedException ex) {
            Thread.currentThread().interrupt();
            throw new RuntimeException(ex);
        }
        catch (ExecutionException ex) {
            throwIfUnchecked(ex.getCause());
            throw new RuntimeException(ex.getCause());
        }
    }

    public Optional getMaterializedViewDefinition(QualifiedObjectName viewName)
    {
        checkState(materializedViewDefinitions.containsKey(viewName), "View " + viewName + " not found");
        try {
            return materializedViewDefinitions.get(viewName).get();
        }
        catch (InterruptedException ex) {
            Thread.currentThread().interrupt();
            throw new RuntimeException(ex);
        }
        catch (ExecutionException ex) {
            throwIfUnchecked(ex.getCause());
            throw new RuntimeException(ex.getCause());
        }
    }

    public TableColumnMetadata getTableColumnsMetadata(QualifiedObjectName tableName)
    {
        checkState(tableColumnsMetadata.containsKey(tableName), "Table " + tableName + " not found");
        try {
            return tableColumnsMetadata.get(tableName).get();
        }
        catch (InterruptedException ex) {
            Thread.currentThread().interrupt();
            throw new RuntimeException(ex);
        }
        catch (ExecutionException ex) {
            throwIfUnchecked(ex.getCause());
            throw new RuntimeException(ex.getCause());
        }
    }
}