net.pms.logging.DebugLogPathDefiner.java Source code

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Here is the source code for net.pms.logging.DebugLogPathDefiner.java

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/*
 * PS3 Media Server, for streaming any medias to your PS3.
 * Copyright (C) 2010  A.Brochard
 *
 * 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 2
 * of the License only.
 *
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package net.pms.logging;

import ch.qos.logback.core.PropertyDefinerBase;
import com.sun.jna.Platform;
import net.pms.PMS;
import net.pms.configuration.PmsConfiguration;
import net.pms.util.FileUtil;
import org.apache.commons.io.FileUtils;

import java.io.File;
import java.io.IOException;

/**
 * Logback PropertyDefiner to set the path for the <code>debug.log</code> file.
 * @author thomas@innot.de
 */
public class DebugLogPathDefiner extends PropertyDefinerBase {
    private static final PmsConfiguration configuration = PMS.getConfiguration();

    /**
     * @return first writable folder in the following order:
     * <p>
     *     1. (On Linux only) path to {@code /var/log/ps3mediaserver/%USERNAME%/}.
     * </p>
     * <p>
     *     2. Path to profile folder ({@code ~/.config/PMS/} on Linux, {@code %ALLUSERSPROFILE%\PMS} on Windows and
     *     {@code ~/Library/Application Support/PMS/} on Mac).
     * </p>
     * <p>
     *     3. Path to user-defined temp folder specified by {@code temp_directory} param in PMS.conf.
     * </p>
     * <p>
     *     4. Path to system temp folder.
     * </p>
     */
    @Override
    public String getPropertyValue() {
        if (Platform.isLinux()) {
            final String username = System.getProperty("user.name");
            final File logDirectory = new File("/var/log/ps3mediaserver/" + username + "/");
            try {
                FileUtils.forceMkdir(logDirectory);
                if (FileUtil.isDirectoryWritable(logDirectory)) {
                    return logDirectory.getAbsolutePath();
                }
            } catch (IOException ex) {
                // Could not create directory, possible permissions problems.
            }
        }

        // Check if profile directory is writable.
        final File logDirectory = new File(configuration.getProfileDirectory());
        if (FileUtil.isDirectoryWritable(logDirectory)) {
            return logDirectory.getAbsolutePath();
        }

        // Try user-defined temp folder or fallback to system temp folder, which should be writable.
        try {
            return configuration.getTempFolder().getAbsolutePath();
        } catch (IOException ex) {
            return System.getProperty("java.io.tmpdir");
        }
    }
}