add policy mapping record class

Author: HonahX

polaris-core/src/main/java/org/apache/polaris/core/entity/PolarisPolicyMappingRecord.java

@@ -0,0 +1,215 @@
+/*
+ * 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.polaris.core.entity;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Objects;
+
+public class PolarisPolicyMappingRecord {
+    // to serialize/deserialize properties
+    public static final String EMPTY_MAP_STRING = "{}";
+    private static final ObjectMapper MAPPER = new ObjectMapper();
+
+    // id of the catalog where target entity resides
+    private long targetCatalogId;
+
+    // id of the target entity
+    private long targetId;
+
+    // id of the catalog where the policy entity resides
+    private long policyCatalogId;
+
+    // id of the policy
+    private long policyId;
+
+    // id associated to the policy type
+    private int policyTypeCode;
+
+    // additional parameters of the mapping
+    private String parameters;
+
+    public PolarisPolicyMappingRecord() {}
+
+    public long getTargetCatalogId() {
+        return targetCatalogId;
+    }
+
+    public void setTargetCatalogId(long targetCatalogId) {
+        this.targetCatalogId = targetCatalogId;
+    }
+
+    public long getTargetId() {
+        return targetId;
+    }
+
+    public void setTargetId(long targetId) {
+        this.targetId = targetId;
+    }
+
+    public long getPolicyId() {
+        return policyId;
+    }
+
+    public void setPolicyId(long policyId) {
+        this.policyId = policyId;
+    }
+
+    public int getPolicyTypeCode() {
+        return policyTypeCode;
+    }
+
+    public void setPolicyTypeCode(int policyTypeCode) {
+        this.policyTypeCode = policyTypeCode;
+    }
+
+    public long getPolicyCatalogId() {
+        return policyCatalogId;
+    }
+
+    public void setPolicyCatalogId(long policyCatalogId) {
+        this.policyCatalogId = policyCatalogId;
+    }
+
+    public String getParameters() {
+        return parameters;
+    }
+
+    public void setParameters(String parameters) {
+        this.parameters = parameters;
+    }
+
+    public Map<String, String> getParametersAsMap() {
+        if (parameters == null) {
+            return new HashMap<>();
+        }
+        try {
+            return MAPPER.readValue(parameters, new TypeReference<>() {});
+        } catch (JsonProcessingException ex) {
+            throw new IllegalStateException(
+                    String.format("Failed to deserialize json. parameters %s", parameters), ex);
+        }
+    }
+
+    public void setParametersAsMap(Map<String, String> parameters) {
+        try {
+            this.parameters =
+                    parameters == null ? EMPTY_MAP_STRING : MAPPER.writeValueAsString(parameters);
+        } catch (JsonProcessingException ex) {
+            throw new IllegalStateException(
+                    String.format("Failed to serialize json. properties %s", parameters), ex);
+        }
+    }
+
+    /**
+     * Constructor
+     *
+     * @param targetCatalogId id of the catalog where target entity resides
+     * @param targetId id of the target entity
+     * @param policyCatalogId id of the catalog where the policy entity resides
+     * @param policyId id of the policy
+     * @param policyTypeCode id associated to the policy type
+     * @param parameters additional parameters of the mapping
+     */
+    @JsonCreator
+    public PolarisPolicyMappingRecord(
+            @JsonProperty("targetCatalogId") long targetCatalogId,
+            @JsonProperty("targetId") long targetId,
+            @JsonProperty("policyCatalogId") long policyCatalogId,
+            @JsonProperty("policyId") long policyId,
+            @JsonProperty("policyTypeCode") int policyTypeCode,
+            @JsonProperty("parameters") String parameters) {
+        this.targetCatalogId = targetCatalogId;
+        this.targetId = targetId;
+        this.policyCatalogId = policyCatalogId;
+        this.policyId = policyId;
+        this.policyTypeCode = policyTypeCode;
+        this.parameters = parameters;
+    }
+
+    public PolarisPolicyMappingRecord(
+            long targetCatalogId,
+            long targetId,
+            long policyCatalogId,
+            long policyId,
+            int policyTypeCode,
+            Map<String, String> parameters) {
+        this.targetCatalogId = targetCatalogId;
+        this.targetId = targetId;
+        this.policyCatalogId = policyCatalogId;
+        this.policyId = policyId;
+        this.policyTypeCode = policyTypeCode;
+        this.setParametersAsMap(parameters);
+    }
+
+    /**
+     * Copy constructor
+     *
+     * @param policyMappingRecord policy mapping rec to copy
+     */
+    public PolarisPolicyMappingRecord(PolarisPolicyMappingRecord policyMappingRecord) {
+        this.targetCatalogId = policyMappingRecord.getTargetCatalogId();
+        this.targetId = policyMappingRecord.getTargetId();
+        this.policyCatalogId = policyMappingRecord.getPolicyCatalogId();
+        this.policyId = policyMappingRecord.getPolicyId();
+        this.policyTypeCode = policyMappingRecord.getPolicyTypeCode();
+        this.parameters = policyMappingRecord.getParameters();
+    }
+
+    @Override
+    public String toString() {
+        return "PolarisPolicyMappingRec{"
+                + "targetCatalogId="
+                + targetCatalogId
+                + ", targetId="
+                + targetId
+                + ", policyCatalogId="
+                + policyCatalogId
+                + ", policyId="
+                + policyId
+                + ", policyType='"
+                + policyTypeCode
+                + ", parameters='"
+                + parameters
+                + "}";
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        PolarisPolicyMappingRecord that = (PolarisPolicyMappingRecord) o;
+        return targetCatalogId == that.targetCatalogId
+                && targetId == that.targetId
+                && policyCatalogId == that.policyCatalogId
+                && policyId == that.policyId
+                && policyTypeCode == that.policyTypeCode
+                && Objects.equals(parameters, that.parameters);
+    }
+
+    @Override
+    public int hashCode() {
+        return java.util.Objects.hash(targetId, policyId, policyCatalogId, policyTypeCode, parameters);
+    }
+}