ConfigurationProgramPaths.java

/*
 * Universal Media Server, for streaming any media to DLNA
 * compatible renderers based on the http://www.ps3mediaserver.org.
 * Copyright (C) 2012 UMS developers.
 *
 * This program is a 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.configuration;

import org.apache.commons.configuration.Configuration;

class ConfigurationProgramPaths implements ProgramPaths {
	private static final String KEY_VLC_PATH         = "vlc_path";
	private static final String KEY_MENCODER_PATH    = "mencoder_path";
	private static final String KEY_FFMPEG_PATH      = "ffmpeg_path";
	private static final String KEY_MPLAYER_PATH     = "mplayer_path";
	private static final String KEY_TSMUXER_PATH     = "tsmuxer_path";
	private static final String KEY_TSMUXER_NEW_PATH = "tsmuxer_new_path";
	private static final String KEY_FLAC_PATH        = "flac_path";
	private static final String KEY_DCRAW            = "dcraw_path";
	private static final String KEY_INTERFRAME_PATH  = "interframe_path";

	private final ConfigurationReader configurationReader;
	private final ProgramPaths defaults;

	public ConfigurationProgramPaths(Configuration configuration, ProgramPaths defaults) {
		this.configurationReader = new ConfigurationReader(configuration, true); // true: log
		this.defaults = defaults;
	}

	@Override
	public String getFfmpegPath() {
		return getString(KEY_FFMPEG_PATH, defaults.getFfmpegPath());
	}

	@Override
	public String getFlacPath() {
		return getString(KEY_FLAC_PATH, defaults.getFlacPath());
	}

	@Override
	public String getMencoderPath() {
		return getString(KEY_MENCODER_PATH, defaults.getMencoderPath());
	}

	@Override
	public String getMplayerPath() {
		return getString(KEY_MPLAYER_PATH, defaults.getMplayerPath());
	}

	@Override
	public String getTsmuxerPath() {
		return getString(KEY_TSMUXER_PATH, defaults.getTsmuxerPath());
	}

	@Override
	public String getTsmuxerNewPath() {
		return getString(KEY_TSMUXER_NEW_PATH, defaults.getTsmuxerNewPath());
	}

	@Override
	public String getVlcPath() {
		return getString(KEY_VLC_PATH, defaults.getVlcPath());
	}

	/**
	 * Return the <code>String</code> value for a given configuration key if the
	 * value is non-blank (i.e. not null, not an empty string, not all whitespace).
	 * Otherwise return the supplied default value.
	 * The value is returned with leading and trailing whitespace removed in both cases.
	 * @param key The key to look up.
	 * @param def The default value to return when no valid key value can be found.
	 * @return The value configured for the key.
	 */
	private String getString(String key, String def) {
		return configurationReader.getNonBlankConfigurationString(key, def);
	}

	@Override
	public String getDCRaw() {
		return getString(KEY_DCRAW, defaults.getDCRaw());
	}

	@Override
	public String getInterFramePath() {
		return getString(KEY_INTERFRAME_PATH, defaults.getInterFramePath());
	}
}