com.notifier.desktop.os.impl.OperatingSystemProcessManagerImpl.java Source code

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Here is the source code for com.notifier.desktop.os.impl.OperatingSystemProcessManagerImpl.java

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/*
 * Android Notifier Desktop is a multiplatform remote notification client for Android devices.
 *
 * Copyright (C) 2010  Leandro Aparecido
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation version 3 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.notifier.desktop.os.impl;

import java.io.*;
import java.util.concurrent.*;

import org.slf4j.*;

import com.google.common.base.*;
import com.google.common.io.*;
import com.google.inject.*;
import com.notifier.desktop.*;
import com.notifier.desktop.notification.*;
import com.notifier.desktop.os.*;

@Singleton
public class OperatingSystemProcessManagerImpl implements OperatingSystemProcessManager {

    public static final String PLACEHOLDER_START = "{";
    public static final String PLACEHOLDER_END = "}";
    public static final String DEVICE_ID_PLACEHOLDER = PLACEHOLDER_START + "deviceId" + PLACEHOLDER_END;
    public static final String NOTIFICATION_ID_PLACEHOLDER = PLACEHOLDER_START + "id" + PLACEHOLDER_END;
    public static final String NOTIFICATION_TYPE_PLACEHOLDER = PLACEHOLDER_START + "type" + PLACEHOLDER_END;
    public static final String NOTIFICATION_DATA_PLACEHOLDER = PLACEHOLDER_START + "data" + PLACEHOLDER_END;
    public static final String NOTIFICATION_DESCRIPTION_PLACEHOLDER = PLACEHOLDER_START + "description"
            + PLACEHOLDER_END;
    public static final String NOTIFICATION_TITLE_PLACEHOLDER = PLACEHOLDER_START + "title" + PLACEHOLDER_END;

    private static final Splitter COMMAND_SPLITTER = Splitter.on(';').trimResults().omitEmptyStrings();

    private static final Logger logger = LoggerFactory.getLogger(OperatingSystemProcessManagerImpl.class);

    private final Application application;
    private final ExecutorService executorService;

    @Inject
    public OperatingSystemProcessManagerImpl(Application application, ExecutorService executorService) {
        this.application = application;
        this.executorService = executorService;
    }

    @Override
    public void executeCommand(Notification notification, String deviceName, String command, boolean privateMode) {
        ProcessBuilder processBuilder = new ProcessBuilder();
        processBuilder.redirectErrorStream(true);
        processBuilder.directory(new File(System.getProperty("user.dir")));

        boolean notifiedError = false;
        Iterable<String> commands = COMMAND_SPLITTER.split(command);
        for (String c : commands) {
            c = c.replace(DEVICE_ID_PLACEHOLDER, notification.getDeviceId());
            c = c.replace(NOTIFICATION_ID_PLACEHOLDER, Long.toString(notification.getNotificationId()));
            c = c.replace(NOTIFICATION_TYPE_PLACEHOLDER, notification.getType().name());
            c = c.replace(NOTIFICATION_DATA_PLACEHOLDER, "\"" + notification.getData() + "\"");
            c = c.replace(NOTIFICATION_DESCRIPTION_PLACEHOLDER,
                    "\"" + notification.getDescription(privateMode) + "\"");
            c = c.replace(NOTIFICATION_TITLE_PLACEHOLDER, "\"" + notification.getTitle(deviceName) + "\"");

            final String commandToExecute = c;
            if (OperatingSystems.CURRENT_FAMILY == OperatingSystems.Family.WINDOWS) {
                processBuilder.command("cmd.exe", "/X", "/C",
                        "\"" + commandToExecute.replaceAll("\"", "\\\"") + "\"");
            } else {
                processBuilder.command("sh", "-c", commandToExecute);
            }
            try {
                final Process process = processBuilder.start();
                executorService.execute(new Runnable() {
                    @Override
                    public void run() {
                        try {
                            String output = CharStreams.toString(new InputSupplier<BufferedReader>() {
                                @Override
                                public BufferedReader getInput() throws IOException {
                                    return new BufferedReader(new InputStreamReader(process.getInputStream()));
                                }
                            });
                            logger.info("Output of command execution: {}\n{}", commandToExecute, output);
                        } catch (Exception e) {
                            logger.error("Could not get command output: " + commandToExecute, e);
                        }

                        try {
                            int exitCode = process.waitFor();
                            logger.info("Command [{}] exited with code [{}]", commandToExecute, exitCode);
                        } catch (InterruptedException e) {
                            // Will exit
                        }
                    }
                });
            } catch (Exception e) {
                logger.error("Error executing notification command: " + c, e);
                if (!notifiedError) {
                    notifiedError = true;
                    application.showError(Application.NAME + " Error Executing Command",
                            "An error occurred while executing command.\n" + c);
                }
            }
        }
    }

}