/*
* Druid - a distributed column store.
* Copyright (C) 2012, 2013 Metamarkets Group Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package io.druid.cli.validate;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.api.client.repackaged.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 io.druid.segment.realtime.Schema;
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 if (type.equalsIgnoreCase("realtimeSchema")) {
jsonMapper.readValue(file, Schema.class);
} else {
throw new UOE("Unknown type[%s]", type);
}
}
catch (Exception e) {
System.out.println("INVALID JSON!");
throw Throwables.propagate(e);
}
}
}