CalvinKirs commented on code in PR #64695:
URL: https://github.com/apache/doris/pull/64695#discussion_r3586485941


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fe/fe-filesystem/fe-filesystem-oss-hdfs/src/main/java/org/apache/doris/filesystem/hdfs/properties/OssHdfsProperties.java:
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@@ -0,0 +1,175 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you 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 org.apache.doris.filesystem.hdfs.properties;
+
+import org.apache.doris.foundation.property.ConnectorProperty;
+
+import com.google.common.collect.ImmutableSet;
+import org.apache.commons.lang3.StringUtils;
+
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * Aliyun OSS-HDFS (JindoFS) storage properties for fe-filesystem.
+ *
+ * <p>OSS-HDFS is an HDFS-compatible service over OSS, addressed with {@code 
oss://} URIs and
+ * served by the JindoFS Hadoop FileSystem ({@code 
com.aliyun.jindodata.oss.JindoOssFileSystem}).
+ * It therefore sits on the shared {@link HdfsCompatibleProperties} base 
alongside plain
+ * {@link HdfsProperties} and produces a backend config map for {@code 
DFSFileSystem}; the only
+ * delta is the Jindo {@code fs.oss.*} wiring plus oss-dls endpoint/region 
handling.</p>
+ *
+ * <p>Self-contained port of the kernel {@code OSSHdfsProperties}, with zero 
fe-core / fe-common
+ * dependency. The Jindo impl class names are kept as string constants (loaded 
reflectively by the
+ * backend), so no compile dependency on the Jindo SDK is introduced.</p>
+ *
+ * <p>The normalized {@code fs.oss.*} backend keys are accepted as aliases so 
the binder is a
+ * fixpoint for converter-produced maps: fe-core's StoragePropertiesConverter 
hands the plugin
+ * {@code getBackendConfigProperties()} output (plus the {@code 
_STORAGE_TYPE_} marker), not the
+ * raw user keys, and rebinding that map must yield the same configuration.</p>
+ */
+public class OssHdfsProperties extends HdfsCompatibleProperties {
+
+    private static final String JINDO_OSS_FILE_SYSTEM_IMPL =
+            "com.aliyun.jindodata.oss.JindoOssFileSystem";
+    private static final String JINDO_OSS_ABSTRACT_FILE_SYSTEM_IMPL =
+            "com.aliyun.jindodata.oss.JindoOSS";
+
+    private static final String OSS_HDFS_PREFIX_KEY = "oss.hdfs.";
+    private static final String OSS_HDFS_ENDPOINT_SUFFIX = 
".oss-dls.aliyuncs.com";
+
+    private static final Set<String> OSS_ENDPOINT_KEY_NAME = 
ImmutableSet.of("oss.hdfs.endpoint",
+            "oss.endpoint", "dlf.endpoint", "dlf.catalog.endpoint");
+
+    private static final Set<Pattern> ENDPOINT_PATTERN = ImmutableSet.of(
+            
Pattern.compile("(?:https?://)?([a-z]{2}-[a-z0-9-]+)\\.oss-dls\\.aliyuncs\\.com"),
+            
Pattern.compile("^(?:https?://)?dlf(?:-vpc)?\\.([a-z0-9-]+)\\.aliyuncs\\.com(?:/.*)?$"));
+
+    private static final Set<String> SUPPORT_SCHEMA = ImmutableSet.of("oss", 
"hdfs");
+
+    @ConnectorProperty(names = {"oss.hdfs.endpoint", "oss.endpoint", 
"dlf.endpoint", "dlf.catalog.endpoint",
+            "fs.oss.endpoint"},
+            description = "The endpoint of OSS.")
+    private String endpoint = "";
+
+    @ConnectorProperty(names = {"oss.hdfs.access_key", "oss.access_key", 
"dlf.access_key", "dlf.catalog.accessKeyId",
+            "fs.oss.accessKeyId"},
+            sensitive = true,
+            description = "The access key of OSS.")
+    private String accessKey = "";
+
+    @ConnectorProperty(names = {"oss.hdfs.secret_key", "oss.secret_key", 
"dlf.secret_key", "dlf.catalog.secret_key",
+            "fs.oss.accessKeySecret"},
+            sensitive = true,
+            description = "The secret key of OSS.")
+    private String secretKey = "";
+
+    @ConnectorProperty(names = {"oss.hdfs.region", "oss.region", "dlf.region", 
"fs.oss.region"},
+            required = false,
+            description = "The region of OSS.")
+    private String region = "";
+
+    @ConnectorProperty(names = {"oss.hdfs.fs.defaultFS"}, required = false, 
description = "")
+    private String fsDefaultFS = "";
+
+    @ConnectorProperty(names = {"oss.hdfs.hadoop.config.resources"},
+            required = false,
+            description = "The xml files of Hadoop configuration.")
+    private String hadoopConfigResources = "";
+
+    @ConnectorProperty(names = {"oss.hdfs.security_token", 
"oss.security_token", "fs.oss.securityToken"},
+            required = false,
+            sensitive = true,
+            description = "The security token of OSS.")
+    private String securityToken = "";
+
+    public OssHdfsProperties(Map<String, String> origProps) {
+        super(origProps);
+    }
+
+    /**
+     * Cheap, deterministic detection of an OSS-HDFS configuration: an 
explicit {@code oss.hdfs.}
+     * enable flag, or any endpoint key pointing at an {@code 
*.oss-dls.aliyuncs.com} host.
+     */
+    public static boolean guessIsMe(Map<String, String> props) {
+        boolean enable = props.entrySet().stream()
+                .anyMatch(e -> e.getKey().equalsIgnoreCase(OSS_HDFS_PREFIX_KEY)
+                        && Boolean.parseBoolean(e.getValue()));
+        if (enable) {
+            return true;
+        }
+        return OSS_ENDPOINT_KEY_NAME.stream()
+                .map(props::get)
+                .anyMatch(ep -> StringUtils.isNotBlank(ep) && 
ep.endsWith(OSS_HDFS_ENDPOINT_SUFFIX));
+    }
+
+    static Optional<String> extractRegion(String endpoint) {
+        for (Pattern pattern : ENDPOINT_PATTERN) {
+            Matcher matcher = pattern.matcher(endpoint.toLowerCase());
+            if (matcher.matches()) {
+                return Optional.ofNullable(matcher.group(1));
+            }
+        }
+        return Optional.empty();
+    }
+
+    private void convertDlfToOssEndpointIfNeeded() {
+        if (this.endpoint.contains("dlf")) {
+            this.endpoint = this.region + ".oss-dls.aliyuncs.com";
+        }
+    }
+
+    @Override
+    protected void doInitNormalizeAndCheckProps() {
+        // Derive region from the endpoint when not explicitly set, e.g.
+        // "cn-shanghai.oss-dls.aliyuncs.com" -> "cn-shanghai".
+        if (StringUtils.isBlank(this.region)) {
+            Optional<String> regionOptional = extractRegion(endpoint);
+            if (!regionOptional.isPresent()) {
+                throw new IllegalArgumentException("The region extracted from 
the endpoint is empty. "
+                        + "Please check the endpoint format: " + endpoint + " 
or set oss.hdfs.region");
+            }
+            this.region = regionOptional.get();
+        }
+        convertDlfToOssEndpointIfNeeded();
+        if (StringUtils.isBlank(fsDefaultFS)) {
+            this.fsDefaultFS = 
HdfsPropertiesUtils.extractDefaultFsFromUri(origProps, SUPPORT_SCHEMA);
+        }
+        initConfigurationParams();
+    }
+
+    private void initConfigurationParams() {
+        Map<String, String> config = loadConfigFromFile(hadoopConfigResources);
+        config.put("fs.oss.endpoint", endpoint);

Review Comment:
   Fixed in 77e63c7880d. `initConfigurationParams()` now passes 
`hadoop.`/`dfs.`/`fs.` prefixed entries from the input map through (after the 
XML load, before the derived keys, so the fixed credential/endpoint/impl keys 
still win), and `fs.defaultFS` is accepted as a binder alias like the HDFS/JFS 
plugins. That restores master's behavior, where the whole converted map went 
into `DFSFileSystem`'s configuration verbatim. Extended the round-trip test 
with XML-style Jindo tuning keys, `fs.defaultFS`, and the system-injected 
markers (which must not leak through).
   
   One clarification: the "existing backend entries such as XML-loaded fs.oss.* 
keys" part is right, but raw catalog `fs.oss.*` extras were never part of the 
kernel's backend map either — kernel `initConfigurationParams` only emits 
XML-sourced entries plus the fixed keys — so the parity gap was exactly the 
XML-loaded entries and `fs.defaultFS`, both covered now.



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