diff --git a/flink-table/flink-table-runtime/src/main/java/org/apache/flink/table/runtime/functions/JsonPathCache.java b/flink-table/flink-table-runtime/src/main/java/org/apache/flink/table/runtime/functions/JsonPathCache.java new file mode 100644 index 0000000000000..097419459c9b6 --- /dev/null +++ b/flink-table/flink-table-runtime/src/main/java/org/apache/flink/table/runtime/functions/JsonPathCache.java @@ -0,0 +1,43 @@ +/* + * 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.flink.table.runtime.functions; + +import org.apache.flink.shaded.guava30.com.google.common.cache.CacheBuilder; + +import com.jayway.jsonpath.JsonPath; +import com.jayway.jsonpath.spi.cache.Cache; + +/** The default cache for the jsonpath {@link com.jayway.jsonpath.spi.cache.CacheProvider}. */ +public class JsonPathCache implements Cache { + + private static final long DEFAULT_CACHE_MAXIMUM_SIZE = 400; + + private final org.apache.flink.shaded.guava30.com.google.common.cache.Cache + jsonPathCache = + CacheBuilder.newBuilder().maximumSize(DEFAULT_CACHE_MAXIMUM_SIZE).build(); + + @Override + public JsonPath get(String s) { + return jsonPathCache.getIfPresent(s); + } + + @Override + public void put(String s, JsonPath jsonPath) { + jsonPathCache.put(s, jsonPath); + } +} diff --git a/flink-table/flink-table-runtime/src/main/java/org/apache/flink/table/runtime/functions/SqlJsonUtils.java b/flink-table/flink-table-runtime/src/main/java/org/apache/flink/table/runtime/functions/SqlJsonUtils.java index 7602a1946e37f..2d7dec14288e0 100644 --- a/flink-table/flink-table-runtime/src/main/java/org/apache/flink/table/runtime/functions/SqlJsonUtils.java +++ b/flink-table/flink-table-runtime/src/main/java/org/apache/flink/table/runtime/functions/SqlJsonUtils.java @@ -41,6 +41,7 @@ import com.jayway.jsonpath.InvalidPathException; import com.jayway.jsonpath.JsonPath; import com.jayway.jsonpath.Option; +import com.jayway.jsonpath.spi.cache.CacheProvider; import com.jayway.jsonpath.spi.json.JacksonJsonProvider; import com.jayway.jsonpath.spi.mapper.JacksonMappingProvider; import com.jayway.jsonpath.spi.mapper.MappingProvider; @@ -74,6 +75,10 @@ public class SqlJsonUtils { private SqlJsonUtils() {} + static { + CacheProvider.setCache(new JsonPathCache()); + } + /** Returns the {@link JsonNodeFactory} for creating nodes. */ public static JsonNodeFactory getNodeFactory() { return MAPPER.getNodeFactory();