DLFCatalog.java

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package org.apache.doris.datasource.iceberg.dlf;

import org.apache.doris.common.credentials.CloudCredential;
import org.apache.doris.common.util.S3Util;
import org.apache.doris.datasource.iceberg.HiveCompatibleCatalog;
import org.apache.doris.datasource.iceberg.dlf.client.DLFCachedClientPool;
import org.apache.doris.datasource.property.storage.OSSProperties;

import org.apache.commons.lang3.StringUtils;
import org.apache.hadoop.conf.Configuration;
import org.apache.iceberg.TableOperations;
import org.apache.iceberg.aws.s3.S3FileIO;
import org.apache.iceberg.catalog.TableIdentifier;
import org.apache.iceberg.io.FileIO;

import java.net.URI;
import java.util.Map;

public class DLFCatalog extends HiveCompatibleCatalog {

    @Override
    public void initialize(String name, Map<String, String> properties) {
        super.initialize(name, initializeFileIO(properties, conf), new DLFCachedClientPool(this.conf, properties));
    }

    @Override
    protected TableOperations newTableOps(TableIdentifier tableIdentifier) {
        String dbName = tableIdentifier.namespace().level(0);
        String tableName = tableIdentifier.name();
        return new DLFTableOperations(this.conf, this.clients, this.fileIO, this.catalogName, dbName, tableName);
    }

    protected FileIO initializeFileIO(Map<String, String> properties, Configuration hadoopConf) {
        // read from converted properties or default by old s3 aws properties
        OSSProperties ossProperties = OSSProperties.of(properties);
        String endpoint = ossProperties.getEndpoint();
        CloudCredential credential = new CloudCredential();
        credential.setAccessKey(ossProperties.getAccessKey());
        credential.setSecretKey(ossProperties.getSecretKey());
        if (StringUtils.isNotBlank(ossProperties.getSessionToken())) {
            credential.setSessionToken(ossProperties.getSessionToken());
        }
        String region = ossProperties.getRegion();
        boolean isUsePathStyle = Boolean.parseBoolean(ossProperties.getUsePathStyle());
        // s3 file io just supports s3-like endpoint
        String s3Endpoint = endpoint.replace("oss-" + region, "s3.oss-" + region);
        if (!s3Endpoint.contains("://")) {
            s3Endpoint = "http://" + s3Endpoint;
        }
        URI endpointUri = URI.create(s3Endpoint);
        FileIO io = new S3FileIO(() -> S3Util.buildS3Client(endpointUri, region, credential, isUsePathStyle));
        io.initialize(properties);
        return io;
    }
}