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[core] Support nested types in Iceberg compatible metadata (#4626)
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109 changes: 109 additions & 0 deletions
109
paimon-core/src/main/java/org/apache/paimon/iceberg/metadata/IcebergListType.java
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| /* | ||
| * 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. | ||
| */ | ||
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| package org.apache.paimon.iceberg.metadata; | ||
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| import org.apache.paimon.shade.jackson2.com.fasterxml.jackson.annotation.JsonCreator; | ||
| import org.apache.paimon.shade.jackson2.com.fasterxml.jackson.annotation.JsonGetter; | ||
| import org.apache.paimon.shade.jackson2.com.fasterxml.jackson.annotation.JsonIgnoreProperties; | ||
| import org.apache.paimon.shade.jackson2.com.fasterxml.jackson.annotation.JsonProperty; | ||
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| import java.util.Objects; | ||
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| /** | ||
| * {@link org.apache.paimon.types.ArrayType} in Iceberg. | ||
| * | ||
| * <p>See <a href="https://iceberg.apache.org/spec/#schemas">Iceberg spec</a>. | ||
| */ | ||
| @JsonIgnoreProperties(ignoreUnknown = true) | ||
| public class IcebergListType { | ||
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| private static final String FIELD_TYPE = "type"; | ||
| private static final String FIELD_ELEMENT_ID = "element-id"; | ||
| private static final String FIELD_ELEMENT_REQUIRED = "element-required"; | ||
| private static final String FIELD_ELEMENT = "element"; | ||
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| @JsonProperty(FIELD_TYPE) | ||
| private final String type; | ||
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| @JsonProperty(FIELD_ELEMENT_ID) | ||
| private final int elementId; | ||
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| @JsonProperty(FIELD_ELEMENT_REQUIRED) | ||
| private final boolean elementRequired; | ||
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| @JsonProperty(FIELD_ELEMENT) | ||
| private final Object element; | ||
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| public IcebergListType(int elementId, boolean elementRequired, Object element) { | ||
| this("list", elementId, elementRequired, element); | ||
| } | ||
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| @JsonCreator | ||
| public IcebergListType( | ||
| @JsonProperty(FIELD_TYPE) String type, | ||
| @JsonProperty(FIELD_ELEMENT_ID) int elementId, | ||
| @JsonProperty(FIELD_ELEMENT_REQUIRED) boolean elementRequired, | ||
| @JsonProperty(FIELD_ELEMENT) Object element) { | ||
| this.type = type; | ||
| this.elementId = elementId; | ||
| this.elementRequired = elementRequired; | ||
| this.element = element; | ||
| } | ||
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| @JsonGetter(FIELD_TYPE) | ||
| public String type() { | ||
| return type; | ||
| } | ||
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| @JsonGetter(FIELD_ELEMENT_ID) | ||
| public int elementId() { | ||
| return elementId; | ||
| } | ||
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| @JsonGetter(FIELD_ELEMENT_REQUIRED) | ||
| public boolean elementRequired() { | ||
| return elementRequired; | ||
| } | ||
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| @JsonGetter(FIELD_ELEMENT) | ||
| public Object element() { | ||
| return element; | ||
| } | ||
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| @Override | ||
| public int hashCode() { | ||
| return Objects.hash(type, elementId, elementRequired, element); | ||
| } | ||
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| @Override | ||
| public boolean equals(Object o) { | ||
| if (this == o) { | ||
| return true; | ||
| } | ||
| if (!(o instanceof IcebergListType)) { | ||
| return false; | ||
| } | ||
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| IcebergListType that = (IcebergListType) o; | ||
| return Objects.equals(type, that.type) | ||
| && elementId == that.elementId | ||
| && elementRequired == that.elementRequired | ||
| && Objects.equals(element, that.element); | ||
| } | ||
| } |
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