dennishuo commented on code in PR #6428: URL: https://github.com/apache/iceberg/pull/6428#discussion_r1052732576
########## snowflake/src/main/java/org/apache/iceberg/snowflake/entities/SnowflakeTableMetadata.java: ########## @@ -0,0 +1,158 @@ +/* + * 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.iceberg.snowflake.entities; + +import com.fasterxml.jackson.databind.JsonNode; +import java.io.IOException; +import java.util.regex.Matcher; +import java.util.regex.Pattern; +import org.apache.commons.dbutils.ResultSetHandler; +import org.apache.iceberg.relocated.com.google.common.base.Objects; +import org.apache.iceberg.relocated.com.google.common.base.Preconditions; +import org.apache.iceberg.util.JsonUtil; + +public class SnowflakeTableMetadata { + public static final Pattern SNOWFLAKE_AZURE_PATTERN = + Pattern.compile("azure://([^/]+)/([^/]+)/(.*)"); + + private String snowflakeMetadataLocation; + private String icebergMetadataLocation; + private String status; + + // Note: Since not all sources will necessarily come from a raw JSON representation, this raw + // JSON should only be considered a convenient debugging field. Equality of two + // SnowflakeTableMetadata instances should not depend on equality of this field. + private String rawJsonVal; + + public SnowflakeTableMetadata( + String snowflakeMetadataLocation, + String icebergMetadataLocation, + String status, + String rawJsonVal) { + this.snowflakeMetadataLocation = snowflakeMetadataLocation; + this.icebergMetadataLocation = icebergMetadataLocation; + this.status = status; + this.rawJsonVal = rawJsonVal; + } + + /** Storage location of table metadata in Snowflake's path syntax. */ + public String getSnowflakeMetadataLocation() { + return snowflakeMetadataLocation; + } + + /** Storage location of table metadata in Iceberg's path syntax. */ + public String getIcebergMetadataLocation() { + return icebergMetadataLocation; + } + + public String getStatus() { + return status; + } + + @Override + public boolean equals(Object o) { + if (this == o) { + return true; + } else if (!(o instanceof SnowflakeTableMetadata)) { + return false; + } + + // Only consider parsed fields, not the raw JSON that may or may not be the original source of + // this instance. + SnowflakeTableMetadata that = (SnowflakeTableMetadata) o; + return Objects.equal(this.snowflakeMetadataLocation, that.snowflakeMetadataLocation) + && Objects.equal(this.icebergMetadataLocation, that.icebergMetadataLocation) + && Objects.equal(this.status, that.status); + } + + @Override + public int hashCode() { + return Objects.hashCode(snowflakeMetadataLocation, icebergMetadataLocation, status); + } + + @Override + public String toString() { + return String.format( + "snowflakeMetadataLocation: '%s', icebergMetadataLocation: '%s', status: '%s", + snowflakeMetadataLocation, icebergMetadataLocation, status); + } + + /** + * Translates from Snowflake's path syntax to Iceberg's path syntax for paths matching known + * non-compatible Snowflake paths. Throws IllegalArgumentException if the prefix of the + * snowflakeLocation is a known non-compatible path syntax but fails to match the expected path + * components for a successful translation. + */ + public static String getIcebergLocationFromSnowflakeLocation(String snowflakeLocation) { + if (snowflakeLocation.startsWith("azure://")) { + // Convert from expected path of the form: + // azure://account.blob.core.windows.net/container/volumepath + // to: + // wasbs://contai...@account.blob.core.windows.net/volumepath + Matcher matcher = SNOWFLAKE_AZURE_PATTERN.matcher(snowflakeLocation); + Preconditions.checkArgument( + matcher.matches(), + "Location '%s' failed to match pattern '%s'", + snowflakeLocation, + SNOWFLAKE_AZURE_PATTERN); + return String.format( + "wasbs://%s@%s/%s", matcher.group(2), matcher.group(1), matcher.group(3)); + } else if (snowflakeLocation.startsWith("gcs://")) { + // Convert from expected path of the form: + // gcs://bucket/path + // to: + // gs://bucket/path + return "gs" + snowflakeLocation.substring(3); + } + return snowflakeLocation; Review Comment: Done -- This is an automated message from the Apache Git Service. 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