io.druid.cli.validate.DruidJsonValidator Maven / Gradle / Ivy
/*
* Druid - a distributed column store.
* Copyright 2012 - 2015 Metamarkets Group Inc.
*
* 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.
*/
package io.druid.cli.validate;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.base.Throwables;
import com.metamx.common.UOE;
import io.airlift.command.Command;
import io.airlift.command.Option;
import io.druid.indexer.HadoopDruidIndexerConfig;
import io.druid.indexing.common.task.Task;
import io.druid.jackson.DefaultObjectMapper;
import io.druid.query.Query;
import java.io.File;
/**
*/
@Command(
name = "validator",
description = "Validates that a given Druid JSON object is correctly formatted"
)
public class DruidJsonValidator implements Runnable
{
@Option(name = "-f", title = "file", description = "file to validate", required = true)
public String jsonFile;
@Option(name = "-t", title = "type", description = "the type of schema to validate", required = true)
public String type;
@Override
public void run()
{
File file = new File(jsonFile);
if (!file.exists()) {
System.out.printf("File[%s] does not exist.%n", file);
}
final ObjectMapper jsonMapper = new DefaultObjectMapper();
try {
if (type.equalsIgnoreCase("query")) {
jsonMapper.readValue(file, Query.class);
} else if (type.equalsIgnoreCase("hadoopConfig")) {
jsonMapper.readValue(file, HadoopDruidIndexerConfig.class);
} else if (type.equalsIgnoreCase("task")) {
jsonMapper.readValue(file, Task.class);
} else {
throw new UOE("Unknown type[%s]", type);
}
}
catch (Exception e) {
System.out.println("INVALID JSON!");
throw Throwables.propagate(e);
}
}
}