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Introduce IcebergPageSource and IcebergColumnHandle
This commit simplifies logic and fixing bugs in case of Iceberg Partition Spec evolution.
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98 changes: 98 additions & 0 deletions
98
presto-iceberg/src/main/java/io/prestosql/plugin/iceberg/IcebergColumnHandle.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| /* | ||
| * Licensed 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 io.prestosql.plugin.iceberg; | ||
|
|
||
| import com.fasterxml.jackson.annotation.JsonCreator; | ||
| import com.fasterxml.jackson.annotation.JsonProperty; | ||
| import io.prestosql.spi.connector.ColumnHandle; | ||
| import io.prestosql.spi.type.Type; | ||
|
|
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| import java.util.Objects; | ||
| import java.util.Optional; | ||
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| import static java.util.Objects.requireNonNull; | ||
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| public class IcebergColumnHandle | ||
| implements ColumnHandle | ||
| { | ||
| private final int id; | ||
| private final String name; | ||
| private final Type type; | ||
| private final Optional<String> comment; | ||
|
|
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| @JsonCreator | ||
| public IcebergColumnHandle( | ||
| @JsonProperty("id") int id, | ||
| @JsonProperty("name") String name, | ||
| @JsonProperty("type") Type type, | ||
| @JsonProperty("comment") Optional<String> comment) | ||
| { | ||
| this.id = id; | ||
| this.name = requireNonNull(name, "name is null"); | ||
| this.type = requireNonNull(type, "type is null"); | ||
| this.comment = requireNonNull(comment, "comment is null"); | ||
| } | ||
|
|
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| @JsonProperty | ||
| public int getId() | ||
| { | ||
| return id; | ||
| } | ||
|
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| @JsonProperty | ||
| public String getName() | ||
| { | ||
| return name; | ||
| } | ||
|
|
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| @JsonProperty | ||
| public Type getType() | ||
| { | ||
| return type; | ||
| } | ||
|
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| @JsonProperty | ||
| public Optional<String> getComment() | ||
| { | ||
| return comment; | ||
| } | ||
|
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| @Override | ||
| public int hashCode() | ||
| { | ||
| return Objects.hash(id, name, type, comment); | ||
| } | ||
|
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| @Override | ||
| public boolean equals(Object obj) | ||
| { | ||
| if (this == obj) { | ||
| return true; | ||
| } | ||
| if (obj == null || getClass() != obj.getClass()) { | ||
| return false; | ||
| } | ||
| IcebergColumnHandle other = (IcebergColumnHandle) obj; | ||
| return this.id == other.id && | ||
| Objects.equals(this.name, other.name) && | ||
| Objects.equals(this.type, other.type) && | ||
| Objects.equals(this.comment, other.comment); | ||
| } | ||
|
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| @Override | ||
| public String toString() | ||
| { | ||
| return id + ":" + name + ":" + type.getDisplayName(); | ||
| } | ||
| } |
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