IcebergRestExternalCatalog.java

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package org.apache.doris.datasource.iceberg;

import org.apache.doris.datasource.CatalogProperty;
import org.apache.doris.datasource.property.metastore.IcebergRestProperties;

import com.google.common.collect.Maps;
import org.apache.hadoop.conf.Configuration;
import org.apache.iceberg.CatalogUtil;

import java.util.Map;

public class IcebergRestExternalCatalog extends IcebergExternalCatalog {

    public IcebergRestExternalCatalog(long catalogId, String name, String resource, Map<String, String> props,
            String comment) {
        super(catalogId, name, comment);
        catalogProperty = new CatalogProperty(resource, props);
    }

    @Override
    protected void initCatalog() {
        icebergCatalogType = ICEBERG_REST;
        // 1. Get properties for REST catalog service.
        IcebergRestProperties icebergRestProperties = (IcebergRestProperties) catalogProperty.getMetastoreProperties();

        // 2. Get FileIO properties for REST catalog service.
        Map<String, String> fileIOProperties = Maps.newHashMap();
        Configuration conf = new Configuration();
        icebergRestProperties.toFileIOProperties(catalogProperty.getStoragePropertiesMap(), fileIOProperties, conf);

        // 3. Merge properties for REST catalog service.
        Map<String, String> options = Maps.newHashMap(icebergRestProperties.getIcebergRestCatalogProperties());
        options.putAll(fileIOProperties);

        // 4. Build iceberg catalog
        catalog = CatalogUtil.buildIcebergCatalog(getName(), options, conf);
    }
}