com.spotify.helios.cli.Output.java Source code

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

Source

/*-
 * -\-\-
 * Helios Tools
 * --
 * Copyright (C) 2016 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;

import static java.lang.String.format;

import java.io.PrintStream;
import org.joda.time.Duration;
import org.joda.time.Period;
import org.xbill.DNS.Name;
import org.xbill.DNS.ResolverConfig;
import org.xbill.DNS.TextParseException;

public class Output {

    public static String humanDuration(final long millis) {
        return humanDuration(Duration.millis(millis));
    }

    public static String humanDuration(final Duration dur) {
        final Period p = dur.toPeriod().normalizedStandard();

        if (dur.getStandardSeconds() == 0) {
            return "0 seconds";
        } else if (dur.getStandardSeconds() < 60) {
            return format("%d second%s", p.getSeconds(), p.getSeconds() > 1 ? "s" : "");
        } else if (dur.getStandardMinutes() < 60) {
            return format("%d minute%s", p.getMinutes(), p.getMinutes() > 1 ? "s" : "");
        } else if (dur.getStandardHours() < 24) {
            return format("%d hour%s", p.getHours(), p.getHours() > 1 ? "s" : "");
        } else {
            return format("%d day%s", dur.getStandardDays(), dur.getStandardDays() > 1 ? "s" : "");
        }
    }

    public static Table table(final PrintStream out) {
        return new Table(out);
    }

    public static JobStatusTable jobStatusTable(final PrintStream out, final boolean full) {
        return new JobStatusTable(out, full);
    }

    public static String shortHostname(final String host) {
        final Name root = Name.fromConstantString(".");
        final Name hostname;
        try {
            hostname = Name.fromString(host, root);
        } catch (TextParseException e) {
            throw new IllegalArgumentException("Invalid hostname '" + host + "'");
        }

        final ResolverConfig currentConfig = ResolverConfig.getCurrentConfig();
        if (currentConfig != null) {
            final Name[] searchPath = currentConfig.searchPath();
            if (searchPath != null) {
                for (final Name domain : searchPath) {
                    if (hostname.subdomain(domain)) {
                        return hostname.relativize(domain).toString();
                    }
                }
            }
        }
        return hostname.toString();
    }

    public static String formatHostname(final boolean full, final String host) {
        return full ? host : shortHostname(host);
    }
}