com.nextdoor.bender.ValidateSchema.java Source code

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Here is the source code for com.nextdoor.bender.ValidateSchema.java

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/*
 * Licensed 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.
 *
 * Copyright 2017 Nextdoor.com, Inc
 *
 */

package com.nextdoor.bender;

import java.io.File;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Paths;

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.DefaultParser;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.PropertyNamingStrategy;
import com.nextdoor.bender.config.BenderConfig;
import com.nextdoor.bender.config.BenderConfig.BenderSchema;
import com.nextdoor.bender.config.ConfigurationException;

public class ValidateSchema {

    public static void main(String[] args) throws ParseException, InterruptedException, IOException {

        /*
         * Parse cli arguments
         */
        Options options = new Options();
        options.addOption(Option.builder().longOpt("schema").hasArg()
                .desc("Filename to output schema to. Default: schema.json").build());
        options.addOption(Option.builder().longOpt("configs").hasArgs()
                .desc("List of config files to validate against schema.").build());
        CommandLineParser parser = new DefaultParser();
        CommandLine cmd = parser.parse(options, args);

        String schemaFilename = cmd.getOptionValue("schema", "schema.json");
        String[] configFilenames = cmd.getOptionValues("configs");

        /*
         * Validate config files against schema
         */
        boolean hasFailures = false;
        for (String configFilename : configFilenames) {
            StringBuilder sb = new StringBuilder();
            Files.lines(Paths.get(configFilename), StandardCharsets.UTF_8).forEach(p -> sb.append(p + "\n"));

            System.out.println("Attempting to validate " + configFilename);
            try {
                ObjectMapper mapper = BenderConfig.getObjectMapper(configFilename);
                mapper.setPropertyNamingStrategy(PropertyNamingStrategy.CAMEL_CASE_TO_LOWER_CASE_WITH_UNDERSCORES);
                BenderConfig.load(configFilename, sb.toString(), mapper, true);
                System.out.println("Valid");
                BenderConfig config = BenderConfig.load(configFilename, sb.toString());
            } catch (ConfigurationException e) {
                System.out.println("Invalid");
                e.printStackTrace();
                hasFailures = true;
            }
        }

        if (hasFailures) {
            System.exit(1);
        }
    }
}