/*
* 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.metadata;
import com.facebook.presto.block.BlockIterable;
import com.facebook.presto.metadata.ColumnFileHandle.Builder;
import com.facebook.presto.spi.ColumnHandle;
import com.google.common.base.Throwables;
import com.google.common.io.Files;
import java.io.File;
import java.io.IOException;
import java.util.List;
public class MockLocalStorageManager
implements LocalStorageManager
{
public static MockLocalStorageManager createMockLocalStorageManager()
{
try {
return new MockLocalStorageManager();
}
catch (IOException e) {
throw Throwables.propagate(e);
}
}
private final File storageFolder;
private MockLocalStorageManager()
throws IOException
{
this(Files.createTempDir());
}
public MockLocalStorageManager(File storageFolder)
throws IOException
{
this.storageFolder = storageFolder;
Files.createParentDirs(this.storageFolder);
this.storageFolder.deleteOnExit();
}
@Override
public BlockIterable getBlocks(long shardId, ColumnHandle columnHandle)
{
throw new UnsupportedOperationException();
}
@Override
public boolean shardExists(long shardId)
{
return false;
}
@Override
public void dropShard(long shardId)
{
}
@Override
public boolean isShardActive(long shardId)
{
return false;
}
@Override
public ColumnFileHandle createStagingFileHandles(long shardId, List<? extends ColumnHandle> columnHandles)
throws IOException
{
Builder builder = ColumnFileHandle.builder(shardId);
for (ColumnHandle handle : columnHandles) {
File tmpfile = File.createTempFile("mock-storage", "mock", storageFolder);
tmpfile.deleteOnExit();
builder.addColumn(handle, tmpfile);
}
return builder.build();
}
@Override
public void commit(ColumnFileHandle columnFileHandle)
throws IOException
{
columnFileHandle.commit();
}
}