FileSystemFactory.java

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//   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.doris.fs;

import org.apache.doris.analysis.StorageBackend;
import org.apache.doris.datasource.property.constants.AzureProperties;
import org.apache.doris.fs.remote.AzureFileSystem;
import org.apache.doris.fs.remote.BrokerFileSystem;
import org.apache.doris.fs.remote.RemoteFileSystem;
import org.apache.doris.fs.remote.S3FileSystem;
import org.apache.doris.fs.remote.dfs.DFSFileSystem;
import org.apache.doris.fs.remote.dfs.JFSFileSystem;
import org.apache.doris.fs.remote.dfs.OFSFileSystem;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;

import java.io.IOException;
import java.util.Map;

public class FileSystemFactory {

    public static RemoteFileSystem get(String name, StorageBackend.StorageType type, Map<String, String> properties) {
        // TODO: rename StorageBackend.StorageType
        if (type == StorageBackend.StorageType.S3) {
            if (AzureProperties.checkAzureProviderPropertyExist(properties)) {
                return new AzureFileSystem(properties);
            }
            return new S3FileSystem(properties);
        } else if (type == StorageBackend.StorageType.HDFS || type == StorageBackend.StorageType.GFS) {
            return new DFSFileSystem(properties);
        } else if (type == StorageBackend.StorageType.OFS) {
            return new OFSFileSystem(properties);
        } else if (type == StorageBackend.StorageType.JFS) {
            return new JFSFileSystem(properties);
        } else if (type == StorageBackend.StorageType.BROKER) {
            return new BrokerFileSystem(name, properties);
        } else {
            throw new UnsupportedOperationException(type.toString() + "backend is not implemented");
        }
    }

    public static RemoteFileSystem getRemoteFileSystem(FileSystemType type, Map<String, String> properties,
                                                       String bindBrokerName) {
        switch (type) {
            case S3:
                if (AzureProperties.checkAzureProviderPropertyExist(properties)) {
                    return new AzureFileSystem(properties);
                }
                return new S3FileSystem(properties);
            case FILE:
            case DFS:
                return new DFSFileSystem(properties);
            case OFS:
                return new OFSFileSystem(properties);
            case JFS:
                return new JFSFileSystem(properties);
            case BROKER:
                return new BrokerFileSystem(bindBrokerName, properties);
            case AZURE:
                return new AzureFileSystem(properties);
            default:
                throw new IllegalStateException("Not supported file system type: " + type);
        }
    }

    public static RemoteFileSystem getS3FileSystem(Map<String, String> properties) {
        // use for test
        return get(StorageBackend.StorageType.S3.name(), StorageBackend.StorageType.S3, properties);
    }

    public static org.apache.hadoop.fs.FileSystem getNativeByPath(Path path, Configuration conf) throws IOException {
        return path.getFileSystem(conf);
    }
}