FileBasedConfigStoreFactory.java

/*
 * 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.tika.pipes.core.config;

import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.pf4j.Extension;

import org.apache.tika.exception.TikaConfigException;
import org.apache.tika.plugins.ExtensionConfig;

/**
 * Factory for creating FileBasedConfigStore instances.
 */
@Extension
public class FileBasedConfigStoreFactory implements ConfigStoreFactory {
    
    private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
    
    @Override
    public String getName() {
        return "file";
    }

    @Override
    public ConfigStore buildExtension(ExtensionConfig config) throws TikaConfigException, IOException {
        try {
            JsonNode params = OBJECT_MAPPER.readTree(config.json());
            
            String filePath = params.has("path") ? params.get("path").asText() : "config-store.json";
            Path path = Paths.get(filePath);
            
            FileBasedConfigStore store = new FileBasedConfigStore(path);
            store.setExtensionConfig(config);
            store.init();
            
            return store;
        } catch (Exception e) {
            throw new TikaConfigException("Failed to create FileBasedConfigStore", e);
        }
    }
}