io.druid.emitter.graphite.GraphiteEmitterModule.java Source code

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Here is the source code for io.druid.emitter.graphite.GraphiteEmitterModule.java

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/*
 *  Licensed to Metamarkets Group Inc. (Metamarkets) under one
 *  or more contributor license agreements. See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership. Metamarkets 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 io.druid.emitter.graphite;

import com.fasterxml.jackson.databind.Module;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.base.Function;
import com.google.common.collect.Lists;
import com.google.inject.Binder;
import com.google.inject.Injector;
import com.google.inject.Key;
import com.google.inject.Provides;
import com.google.inject.name.Named;
import com.google.inject.name.Names;
import com.metamx.emitter.core.Emitter;
import io.druid.guice.JsonConfigProvider;
import io.druid.guice.ManageLifecycle;
import io.druid.initialization.DruidModule;

import java.util.Collections;
import java.util.List;

public class GraphiteEmitterModule implements DruidModule {
    private static final String EMITTER_TYPE = "graphite";

    @Override
    public List<? extends Module> getJacksonModules() {
        return Collections.EMPTY_LIST;
    }

    @Override
    public void configure(Binder binder) {
        JsonConfigProvider.bind(binder, "druid.emitter." + EMITTER_TYPE, GraphiteEmitterConfig.class);
    }

    @Provides
    @ManageLifecycle
    @Named(EMITTER_TYPE)
    public Emitter getEmitter(GraphiteEmitterConfig graphiteEmitterConfig, ObjectMapper mapper,
            final Injector injector) {
        List<Emitter> emitters = Lists.transform(graphiteEmitterConfig.getAlertEmitters(),
                new Function<String, Emitter>() {
                    @Override
                    public Emitter apply(String s) {
                        return injector.getInstance(Key.get(Emitter.class, Names.named(s)));
                    }
                });
        return new GraphiteEmitter(graphiteEmitterConfig, emitters);
    }
}