| /* |
| * 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.skywalking.library.elasticsearch.requests.factory.v7.codec; |
| |
| import com.fasterxml.jackson.core.JsonParser; |
| import com.fasterxml.jackson.core.type.TypeReference; |
| import com.fasterxml.jackson.databind.DeserializationContext; |
| import com.fasterxml.jackson.databind.JsonDeserializer; |
| import java.io.IOException; |
| import java.util.Collections; |
| import java.util.Map; |
| import org.apache.skywalking.library.elasticsearch.response.IndexTemplate; |
| import org.apache.skywalking.library.elasticsearch.response.IndexTemplates; |
| |
| final class V7IndexTemplatesDeserializer extends JsonDeserializer<IndexTemplates> { |
| public static final TypeReference<Map<String, IndexTemplate>> TYPE_REFERENCE = |
| new TypeReference<Map<String, IndexTemplate>>() { |
| }; |
| |
| @Override |
| public IndexTemplates deserialize(final JsonParser p, |
| final DeserializationContext ctxt) |
| throws IOException { |
| |
| final Map<String, IndexTemplate> templates = p.getCodec().readValue(p, TYPE_REFERENCE); |
| if (templates == null) { |
| return new IndexTemplates(Collections.emptyMap()); |
| } |
| return new IndexTemplates(templates); |
| } |
| } |