org.springframework.ide.eclipse.boot.dash.ngrok.NGROKProcess.java Source code

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Here is the source code for org.springframework.ide.eclipse.boot.dash.ngrok.NGROKProcess.java

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/*******************************************************************************
 * Copyright (c) 2015 Pivotal Software, Inc.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Pivotal Software, Inc. - initial API and implementation
 *******************************************************************************/
package org.springframework.ide.eclipse.boot.dash.ngrok;

import java.io.File;
import java.io.FileWriter;

import org.eclipse.jdt.launching.SocketUtil;

/**
 * @author Martin Lippert
 */
public class NGROKProcess {

    private final Process process;
    private final String apiURL;

    public static NGROKProcess startNGROK(String path, String proto, String addr) throws Exception {
        FileWriter fileWriter = null;

        try {
            int freePort = SocketUtil.findFreePort();
            String webAddr = "localhost:" + freePort;

            File ngrokConfigFile = File.createTempFile("ngrok-config", "yml");
            ngrokConfigFile.deleteOnExit();

            fileWriter = new FileWriter(ngrokConfigFile);
            fileWriter.write("web_addr: " + webAddr + "\n");
            fileWriter.close();

            String configFileArg = "-config=" + ngrokConfigFile.getAbsolutePath();

            ProcessBuilder processBuilder = new ProcessBuilder(path, proto, configFileArg, addr);
            Process process = processBuilder.start();

            return new NGROKProcess(process, "http://" + webAddr);
        } finally {
            if (fileWriter != null) {
                fileWriter.close();
            }
        }
    }

    public NGROKProcess(Process process, String apiURL) {
        this.process = process;
        this.apiURL = apiURL;
    }

    public String getApiURL() {
        return apiURL;
    }

    public void terminate() {
        if (this.process != null) {
            this.process.destroy();
        }
    }

}