/*
* Copyright (c) 2014 Spotify AB.
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF 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 com.spotify.helios.cli.command;
import com.google.common.collect.ImmutableList;
import com.spotify.helios.client.HeliosClient;
import com.spotify.helios.common.descriptors.JobId;
import com.spotify.helios.common.descriptors.JobStatus;
import com.spotify.helios.common.protocol.JobUndeployResponse;
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.List;
import java.util.concurrent.ExecutionException;
import static net.sourceforge.argparse4j.impl.Arguments.storeTrue;
public class JobUndeployCommand extends WildcardJobCommand {
private final Argument hostsArg;
private final Argument allArg;
private final Argument forceArg;
public JobUndeployCommand(final Subparser parser) {
super(parser);
parser.help("undeploy a job from hosts");
allArg = parser.addArgument("-a", "--all")
.action(storeTrue())
.help("Undeploy from all currently deployed hosts.");
forceArg = parser.addArgument("-f", "--force")
.action(storeTrue())
.help("Force yes. Immediately undeploy job without prompting. " +
"Useful together with -a/--all. Please use with care.");
hostsArg = parser.addArgument("hosts")
.nargs("*")
.help("The hosts to undeploy the job from.");
}
@Override
protected int runWithJobId(final Namespace options, final HeliosClient client,
final PrintStream out, final boolean json, final JobId jobId,
final BufferedReader stdin)
throws ExecutionException, InterruptedException, IOException {
final boolean all = options.getBoolean(allArg.getDest());
final boolean force = options.getBoolean(forceArg.getDest());
final List<String> hosts;
if (all) {
final JobStatus status = client.jobStatus(jobId).get();
hosts = ImmutableList.copyOf(status.getDeployments().keySet());
if (hosts.isEmpty()) {
out.printf("%s is not currently deployed on any hosts.", jobId);
return 0;
}
if (!force) {
out.printf("This will undeploy %s from %s%n", jobId, hosts);
out.printf("Do you want to continue? [y/N]%n");
// TODO (dano): pass in stdin instead using System.in
final int c = System.in.read();
if (c != 'Y' && c != 'y') {
return 1;
}
}
} else {
hosts = options.getList(hostsArg.getDest());
if (hosts.isEmpty()) {
out.println("Please either specify a list of hosts or use the -a/--all flag.");
return 1;
}
}
if (!json) {
out.printf("Undeploying %s from %s%n", jobId, hosts);
}
int code = 0;
final HostResolver resolver = HostResolver.create(client);
for (final String candidateHost : hosts) {
final String host = resolver.resolveName(candidateHost);
if (!json) {
out.printf("%s: ", host);
}
final JobUndeployResponse response = client.undeploy(jobId, host).get();
if (response.getStatus() == JobUndeployResponse.Status.OK) {
if (!json) {
out.println("done");
} else {
out.printf(response.toJsonString());
}
} else {
if (!json) {
out.println("failed: " + response);
} else {
out.printf(response.toJsonString());
}
code = -1;
}
}
return code;
}
}