/**
* This file is part of Graylog2.
*
* Graylog2 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 3 of the License, or
* (at your option) any later version.
*
* Graylog2 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 Graylog2. If not, see <http://www.gnu.org/licenses/>.
*/
package org.graylog2.inputs.codecs;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.inject.Inject;
import com.google.inject.assistedinject.Assisted;
import org.graylog2.inputs.random.generators.FakeHttpRawMessageGenerator;
import org.graylog2.plugin.ConfigClass;
import org.graylog2.plugin.FactoryClass;
import org.graylog2.plugin.Message;
import org.graylog2.plugin.configuration.Configuration;
import org.graylog2.plugin.configuration.ConfigurationRequest;
import org.graylog2.plugin.inputs.codecs.Codec;
import org.graylog2.plugin.inputs.codecs.CodecAggregator;
import org.graylog2.plugin.journal.RawMessage;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.io.IOException;
import static org.graylog2.inputs.random.generators.FakeHttpRawMessageGenerator.GeneratorState;
public class RandomHttpMessageCodec implements Codec {
private static final Logger log = LoggerFactory.getLogger(RandomHttpMessageCodec.class);
private final ObjectMapper objectMapper;
@Inject
public RandomHttpMessageCodec(@Assisted Configuration configuration, ObjectMapper objectMapper) {
this.objectMapper = objectMapper;
}
@Nullable
@Override
public Message decode(@Nonnull RawMessage rawMessage) {
if (!rawMessage.getPayloadType().equals(getName())) {
log.error("Cannot decode payload type {}, skipping message {}", rawMessage.getPayloadType(), rawMessage.getId());
return null;
}
try {
final GeneratorState state = objectMapper.readValue(rawMessage.getPayload(), GeneratorState.class);
final Message message = FakeHttpRawMessageGenerator.generateMessage(state);
return message;
} catch (IOException e) {
log.error("Cannot decode message to class FakeHttpRawMessageGenerator.GeneratorState", e);
}
return null;
}
@Nullable
@Override
public CodecAggregator getAggregator() {
return null;
}
@Override
public String getName() {
return "randomhttp";
}
@FactoryClass
public interface Factory extends Codec.Factory<RandomHttpMessageCodec> {
@Override
RandomHttpMessageCodec create(Configuration configuration);
@Override
Config getConfig();
}
@ConfigClass
public static class Config implements Codec.Config {
@Override
public ConfigurationRequest getRequestedConfiguration() {
return new ConfigurationRequest();
}
@Override
public void overrideDefaultValues(@Nonnull ConfigurationRequest cr) {
}
}
}