lritdcs.recv.LritDcsRecvConfig Maven / Gradle / Ivy

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A collection of software for aggregatting and processing environmental data such as from NOAA GOES satellites.

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/**
 * @(#) LritDcsRecvConfig.java
 */
package lritdcs.recv;

import java.io.FileInputStream;
import java.io.IOException;
import java.io.File;
import java.util.Properties;
import ilex.util.PropertiesUtil;


/**
Holds the LRIT DCS File Receiver Configuration.
*/
public class LritDcsRecvConfig
{
	/**
	 * One of the header-type constants defined in LritDcsDirMonitor.
	 */
	public char fileHeaderType;
	
	/**
	 * Directory to monitor for incoming LRIT files.
	 */
	public String fileInputDir;
	
	/**
	 * Directory to place files in after processing.
	 */
	public String fileDoneDir;
	
	/** Directory to store the hourly message files in. */
	public String msgFileDir;

	/** Prefix for DCS files, if set, all others will be ignored. */
	public String filePrefix;

	/** suffix for DCS files, if set, all others will be ignored. */
	public String fileSuffix;


	// Last time configuration was loaded from disk file.
	private long lastLoadTime;

	// the one and only instance.
	private static LritDcsRecvConfig _instance = null;

	// My properties file
	private File propFile;
	
	public static LritDcsRecvConfig instance()
	{
		if (_instance == null)
			_instance = new LritDcsRecvConfig();
		return _instance;
	}

	private LritDcsRecvConfig()
	{
		fileHeaderType = LritDcsDirMonitor.HEADER_TYPE_DOM6;
		fileInputDir = "dcs-files";
		fileDoneDir = "dcs-done";
		msgFileDir = "hourly-files";
		filePrefix = null;
		fileSuffix = null;
		lastLoadTime = 0L;
		propFile = null;
	}

	public void setPropFile(String propFileName)
	{
		propFile = new File(propFileName);
	}

	public synchronized void load()
		throws IOException
	{
		if (propFile == null)
			return;
		Properties props = new Properties();
		FileInputStream fis = new FileInputStream(propFile);
		props.load(fis);
		fis.close();
		PropertiesUtil.loadFromProps(this, props);
		
		File f = new File(fileInputDir);
		if (!f.isDirectory())
			if (!f.mkdirs())
				System.out.println("Directory '" + f.getPath() 
					+ "' does not exist and cannot be made.");
		f = new File(fileDoneDir);
		if (!f.isDirectory())
			if (!f.mkdirs())
				System.out.println("Directory '" + f.getPath() 
					+ "' does not exist and cannot be made.");
		f = new File(msgFileDir);
		if (!f.isDirectory())
			if (!f.mkdirs())
				System.out.println("Directory '" + f.getPath() 
					+ "' does not exist and cannot be made.");
		lastLoadTime = System.currentTimeMillis();
	}

	public void checkConfig()
		throws IOException
	{
		if (propFile.exists() && propFile.lastModified() > lastLoadTime)
			load();
	}

	public long getLastLoadTime()
	{
		return lastLoadTime;
	}
}