keywhiz.cli.CliModule.java Source code

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Here is the source code for keywhiz.cli.CliModule.java

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/*
 * Copyright (C) 2015 Square, 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 keywhiz.cli;

import com.beust.jcommander.JCommander;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.datatype.jdk8.Jdk8Module;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import com.google.inject.AbstractModule;
import com.google.inject.Provides;
import com.google.inject.name.Names;
import com.google.inject.util.Providers;
import io.dropwizard.jackson.Jackson;
import java.util.Map;
import keywhiz.cli.configs.CliConfiguration;

public class CliModule extends AbstractModule {
    private final CliConfiguration config;
    private final JCommander parentCommander;
    private final JCommander commander;
    private final String command;
    private final Map commands;

    public CliModule(CliConfiguration config, JCommander parentCommander, JCommander commander, String command,
            Map<String, Object> commands) {
        this.config = config;
        this.parentCommander = parentCommander;
        this.commander = commander;
        this.command = command;
        this.commands = commands;
    }

    @Override
    protected void configure() {
        bind(CliConfiguration.class).toInstance(config);

        bind(JCommander.class).annotatedWith(Names.named("ParentCommander")).toInstance(parentCommander);

        if (commander == null) {
            bind(JCommander.class).annotatedWith(Names.named("Commander"))
                    .toProvider(Providers.of((JCommander) null));
            bind(String.class).annotatedWith(Names.named("Command")).toProvider(Providers.of((String) null));
        } else {
            bind(JCommander.class).annotatedWith(Names.named("Commander")).toInstance(commander);
            bindConstant().annotatedWith(Names.named("Command")).to(command);
        }

        bind(Map.class).annotatedWith(Names.named("CommandMap")).toInstance(commands);
    }

    @Provides
    public ObjectMapper generalMapper() {
        /**
         * Customizes ObjectMapper for common settings.
         *
         * @param objectMapper to be customized
         * @return customized input factory
         */
        ObjectMapper objectMapper = Jackson.newObjectMapper();
        objectMapper.registerModule(new Jdk8Module());
        objectMapper.registerModules(new JavaTimeModule());
        objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
        return objectMapper;
    }
}