com.hazelcast.simulator.boot.SimulatorInstaller.java Source code

Introduction

Here is the source code for com.hazelcast.simulator.boot.SimulatorInstaller.java

Source

/*
 * Copyright (c) 2008-2016, Hazelcast, Inc. All Rights Reserved.
 *
 * 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.hazelcast.simulator.boot;

import com.hazelcast.simulator.utils.FileUtils;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.URL;
import java.nio.channels.Channels;
import java.nio.channels.ReadableByteChannel;

import static com.hazelcast.simulator.utils.CommonUtils.getSimulatorVersion;
import static java.lang.String.format;
import static org.apache.commons.lang3.SystemUtils.getUserHome;

class SimulatorInstaller {

    private final String version = getSimulatorVersion();

    void install() {
        File simulatorHome = new File(FileUtils.getUserHomePath(), "hazelcast-simulator-" + version);
        System.setProperty("SIMULATOR_HOME", simulatorHome.getAbsolutePath());

        System.out.println("Installing Simulator: " + version);

        File userHome = getUserHome();
        try {
            if (version.endsWith("SNAPSHOT")) {
                File archive = new File(
                        format("%s/.m2/repository/com/hazelcast/simulator/dist/%s/dist-%s-dist.tar.gz", userHome,
                                version, version));

                if (archive.exists()) {
                    simulatorHome.delete();
                    decompress(archive);
                } else if (!simulatorHome.exists()) {
                    throw new IllegalStateException(
                            "Could not install simulator, archive: " + archive.getAbsolutePath() + " not found");
                }
            } else if (!simulatorHome.exists()) {
                File archive = new File(getUserHome(), format("hazelcast-simulator-%s-dist.tar.gz", version));

                URL url = new URL(format(
                        "http://repo1.maven.org/maven2/" + "com/hazelcast/simulator/dist/%s/dist-%s-dist.tar.gz",
                        version, version));
                ReadableByteChannel rbc = Channels.newChannel(url.openStream());
                System.out.printf("File [%s] doesn't exist; downloading\n", archive.getAbsolutePath());
                FileOutputStream fos = new FileOutputStream(archive);
                fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);

                decompress(archive);
                archive.delete();
            }
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    private void decompress(File archive) throws InterruptedException, IOException {
        ProcessBuilder pb = new ProcessBuilder("tar", "-xpf", archive.getAbsolutePath(), "-C",
                getUserHome().getAbsolutePath());
        pb.start().waitFor();
    }
}