com.spotify.helios.cli.command.WildcardJobCommand.java Source code

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Here is the source code for com.spotify.helios.cli.command.WildcardJobCommand.java

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/*
 * Copyright (c) 2014 Spotify AB.
 *
 * 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 com.spotify.helios.cli.command;

import com.google.common.collect.Iterables;

import com.spotify.helios.client.HeliosClient;
import com.spotify.helios.common.descriptors.Job;
import com.spotify.helios.common.descriptors.JobId;
import com.spotify.helios.common.protocol.JobDeployResponse;

import net.sourceforge.argparse4j.inf.Argument;
import net.sourceforge.argparse4j.inf.Namespace;
import net.sourceforge.argparse4j.inf.Subparser;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.PrintStream;
import java.util.Map;
import java.util.concurrent.ExecutionException;

abstract class WildcardJobCommand extends ControlCommand {

    private final Argument jobArg;

    public WildcardJobCommand(final Subparser parser) {
        this(parser, false);
    }

    public WildcardJobCommand(final Subparser parser, final boolean shortCircuit) {
        super(parser, shortCircuit);

        jobArg = parser.addArgument("job").help("Job id.");
    }

    @Override
    int run(final Namespace options, final HeliosClient client, final PrintStream out, final boolean json,
            final BufferedReader stdin) throws ExecutionException, InterruptedException, IOException {

        final String jobIdString = options.getString(jobArg.getDest());
        final Map<JobId, Job> jobs = client.jobs(jobIdString).get();

        if (jobs.size() == 0) {
            if (!json) {
                out.printf("Unknown job: %s%n", jobIdString);
            } else {
                final JobDeployResponse jobDeployResponse = new JobDeployResponse(
                        JobDeployResponse.Status.JOB_NOT_FOUND, null, null);
                out.print(jobDeployResponse.toJsonString());
            }
            return 1;
        } else if (jobs.size() > 1) {
            if (!json) {
                out.printf("Ambiguous job reference: %s%n", jobIdString);
            } else {
                final JobDeployResponse jobDeployResponse = new JobDeployResponse(
                        JobDeployResponse.Status.AMBIGUOUS_JOB_REFERENCE, null, null);
                out.print(jobDeployResponse.toJsonString());
            }
            return 1;
        }

        final JobId jobId = Iterables.getOnlyElement(jobs.keySet());

        return runWithJobId(options, client, out, json, jobId, stdin);
    }

    protected abstract int runWithJobId(final Namespace options, final HeliosClient client, final PrintStream out,
            final boolean json, final JobId jobId, final BufferedReader stdin)
            throws ExecutionException, InterruptedException, IOException;
}