OIiveirra commented on code in PR #69527:
URL: https://github.com/apache/doris/pull/69527#discussion_r4367889049


##########
fe/fe-core/src/main/java/org/apache/doris/tablefunction/HadoopTvfAdmission.java:
##########
@@ -0,0 +1,502 @@
+// 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.tablefunction;
+
+import org.apache.doris.common.Config;
+import org.apache.doris.common.util.LocationPath;
+import org.apache.doris.nereids.exceptions.AnalysisException;
+
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * TVF-only admission for Hadoop consumers. Input properties have already been 
normalized by storage.
+ * This module neither loads Hadoop resources nor constructs a filesystem. 
Java strings and native
+ * C strings are projected separately before filesystem selection and 
mount-table interpretation.
+ */
+public final class HadoopTvfAdmission {
+    public enum Access {
+        NATIVE_WRITE,
+        JAVA_DELETE,
+        HADOOP_READ
+    }
+
+    private enum Provider {
+        REMOTE,
+        LOCAL,
+        MOUNT_TABLE,
+        DYNAMIC,
+        UNKNOWN
+    }
+
+    private static final Set<String> REMOTE_SCHEMES = new 
HashSet<>(Arrays.asList(
+            "hdfs", "s3a", "s3n", "oss", "ofs", "jfs", "abfs", "abfss", 
"wasb", "wasbs", "gs", "cosn"));
+    private static final Set<String> REMOTE_IMPLEMENTATIONS = new 
HashSet<>(Arrays.asList(
+            "org.apache.hadoop.hdfs.DistributedFileSystem",
+            "org.apache.hadoop.fs.s3a.S3AFileSystem",
+            "org.apache.hadoop.fs.azurebfs.AzureBlobFileSystem",
+            "org.apache.hadoop.fs.azurebfs.SecureAzureBlobFileSystem",
+            "org.apache.hadoop.fs.azure.NativeAzureFileSystem",
+            "org.apache.hadoop.fs.aliyun.oss.AliyunOSSFileSystem",
+            "com.aliyun.jindodata.oss.JindoOssFileSystem",
+            "org.apache.hadoop.fs.obs.OBSFileSystem",
+            "com.google.cloud.hadoop.fs.gcs.GoogleHadoopFileSystem"));
+
+    private final Access access;
+    private final Map<String, String> properties = new HashMap<>();
+
+    private HadoopTvfAdmission(Access access, Map<String, String> normalized, 
boolean nativeConsumer) {
+        this.access = access;
+        Set<String> nativeRoutingKeys = new HashSet<>();
+        for (Map.Entry<String, String> entry : normalized.entrySet()) {
+            // parse_properties / generateHdfsParam consumes the canonical 
NameNode before JNI.
+            if (nativeConsumer && 
"fs.defaultFS".equalsIgnoreCase(entry.getKey())) {
+                continue;
+            }
+            String key = (nativeConsumer ? nativeStringPrefix(entry.getKey()) 
: entry.getKey()).trim();
+            // Native writes first pass through StringCaseMap, before JNI 
truncates strings.
+            // Its comparator uses strncasecmp followed by the full UTF-8 byte 
length.
+            if (nativeConsumer && access == Access.NATIVE_WRITE && 
isRoutingKey(asciiCaseFold(key))) {
+                String identity = 
asciiCaseFold(nativeStringPrefix(entry.getKey())) + "\0"
+                        + 
entry.getKey().getBytes(StandardCharsets.UTF_8).length;
+                if (!nativeRoutingKeys.add(identity)) {
+                    reject();
+                }
+            }
+            String value = nativeConsumer ? 
nativeStringPrefix(entry.getValue()) : entry.getValue();
+            String previous = properties.put(key, value);
+            if (previous != null && !previous.equals(value) && 
isRoutingKey(key)) {
+                reject();
+            }
+        }
+    }
+
+    /** Reject local/unknown Hadoop TVF routes before listing, deletion, 
schema discovery or data IO. */
+    public static void check(Access access, String path, Map<String, String> 
normalized) {
+        if (access != Access.HADOOP_READ && Config.enable_local_tvf) {
+            return;
+        }
+        try {
+            if (access == Access.NATIVE_WRITE) {
+                String nameNode = nativeNameNode(access, normalized);
+                URI output = nativeFileUri(access, path + "doris-tvf-file", 
nameNode);
+                String parent = output.getPath();
+                parent = parent.substring(0, parent.lastIndexOf('/') + 1);
+                if (parent.length() > 1) {
+                    parent = parent.substring(0, parent.length() - 1);
+                }
+                new HadoopTvfAdmission(access, normalized, 
true).checkNative(nameNode, parent);
+            } else {
+                HadoopTvfAdmission javaConsumer = new 
HadoopTvfAdmission(access, normalized, false);
+                // Project the Java consumer independently from native 
convert_path/JNI.
+                URI javaPath = hadoopPathUri(path.trim());
+                javaConsumer.checkRoute(javaPath, javaPath.getPath(), new 
HashSet<>());
+                if (access == Access.HADOOP_READ) {
+                    // FileQueryScanNode sends this filesystem identifier in 
range.fs_name. BE
+                    // falls back to hdfs_params.fs_name only when that range 
field is empty.
+                    URI fileUri = LocationPath.of(path).getPath().toUri();
+                    String nameNode = fileUri.getScheme() + "://" + 
fileUri.getAuthority();
+                    if (nameNode.isEmpty()) {
+                        nameNode = nativeNameNode(access, normalized);
+                    }
+                    HadoopTvfAdmission nativeConsumer = new 
HadoopTvfAdmission(access, normalized, true);
+                    nativeConsumer.checkNativeRead(nameNode, path);
+                    // Schema RPCs have no range.fs_name; they use 
THdfsParams.fs_name instead.
+                    nativeConsumer.checkNativeRead(nativeNameNode(access, 
normalized), path);

Review Comment:
   Admission now uses the parsed csvSchema state. It skips the schema NameNode 
only when the declared schema avoids that RPC, while preserving Java listing 
and native data admission. Without a declared schema, returned file statuses 
still receive schema-route admission because the RPC uses a returned path. 
Tests cover the unused file:/// default and the distinct returned-file schema 
fallback negative.
   
   Follow-up commit: f77cbb4a48a2327686c6494e2d382846b7fbb46c. 73 selected FE 
tests passed with fresh XML, no failures/errors/skips and unchanged inputs; 
targeted Checkstyle passed.



##########
build.sh:
##########
@@ -474,6 +474,49 @@ if [[ ! -f 
"${DORIS_THIRDPARTY}/installed/lib/${LAST_THIRDPARTY_LIB}" ||
     fi
 fi
 
+# Lance TVF storage policy needs both sides of the metadata-only SDK ABI.
+# Check the selected third-party prefix only; a system Lance install cannot 
satisfy it.
+lance_c_is_compatible() {
+    local install_dir="$1"
+    [[ ! -e "${install_dir}/lib64/.lance-installing" &&
+       -s "${install_dir}/include/lance/lance.h" &&
+       -s "${install_dir}/lib64/liblance_c.a" ]] || return 1
+    grep -Eq 
'^#[[:space:]]*define[[:space:]]+LANCE_STORAGE_BASES_JSON_VERSION[[:space:]]+1([[:space:]]|$)'
 \
+        "${install_dir}/include/lance/lance.h" || return 1
+    # GNU nm and Darwin nm spell C exports differently. Read the whole stream:
+    # early awk exit would turn a large archive's producer SIGPIPE into 
failure.
+    "${NM:-nm}" -g "${install_dir}/lib64/liblance_c.a" 2>/dev/null | awk '
+        NF >= 2 && $(NF - 1) ~ /^[TW]$/ && $NF ~ 
/^_?lance_dataset_storage_bases_json$/ { found = 1 }
+        END { exit !found }
+    '
+}
+
+lance_c_source_matches() {
+    local source_dir="$1"
+    [[ -f "${source_dir}/build-thirdparty.sh" && -f 
"${source_dir}/download-thirdparty.sh" &&
+       -f "${source_dir}/vars.sh" && -f 
"${source_dir}/patches/lance-c-storage-bases.patch" ]] || return 1
+    grep -Fq 'install_lance_c() {' "${source_dir}/build-thirdparty.sh" || 
return 1
+    grep -Fq 'lance-c-storage-bases.patch' 
"${source_dir}/download-thirdparty.sh" || return 1
+    cmp -s "${DORIS_HOME}/thirdparty/patches/lance-c-storage-bases.patch" \
+        "${source_dir}/patches/lance-c-storage-bases.patch" || return 1
+    cmp -s <(grep -E '^LANCE_C_(DOWNLOAD|NAME|SOURCE)=' 
"${DORIS_HOME}/thirdparty/vars.sh") \
+        <(grep -E '^LANCE_C_(DOWNLOAD|NAME|SOURCE)=' "${source_dir}/vars.sh")
+}
+
+if [[ "${BUILD_BE}" -eq 1 ]] && ! lance_c_is_compatible 
"${DORIS_THIRDPARTY}/installed"; then
+    if ! lance_c_source_matches "${DORIS_THIRDPARTY}"; then
+        echo "Lance SDK header/archive pair lacks 
LANCE_STORAGE_BASES_JSON_VERSION=1 or its exported API, or is incomplete." >&2
+        echo "Refresh the compilation image's include/lance and 
lib64/liblance_c.a together, or set DORIS_THIRDPARTY to matching complete 
third-party sources." >&2
+        exit 1
+    fi
+    echo "Rebuilding only lance_c for the TVF storage-base metadata ABI ..."
+    bash "${DORIS_THIRDPARTY}/build-thirdparty.sh" -j "${PARALLEL}" lance_c

Review Comment:
   The ABI repair now rebuilds lance_c and paimon_rust together from matching 
source, passing one selected cargo command to both and preserving the selected 
Rust toolchain environment. Conflicting library-specific cargo overrides fail 
before rebuilding. Existing compatible installed pairs remain reusable and 
unrelated dependencies are preserved. All 12 build-gate tests pass; this 
follow-up did not rebuild actual Rust artifacts or claim a new full BE link.
   
   Follow-up commit: f77cbb4a48a2327686c6494e2d382846b7fbb46c. 73 selected FE 
tests passed with fresh XML, no failures/errors/skips and unchanged inputs; 
targeted Checkstyle passed.



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