dc2tank - datacenter to tank module

	Pulls miniSEED data from a datacenter (currently only DHI enabled) and converts
it to a tankplayer tank. Ultimately this module will allow pulling from the CWB format
data center protocol for waveforms.

	Written by Paul Friberg and Kevin Frechette of ISTI.com July 2007.

ARGUMENT LIST:

Usage: ./dc2tank [-n maxsamples] [-d secs] -D dir -t [d|c] -f scnlfile -p props -o tank
Version 0.0.1 2007.07.18
 -n maxsamples - the max number of samps per tracebuf in tank
        defaults to 200 per tbuf, cannot be larger than 1008
 -D workingdir - the working dir where mseeds and intermediate tanks are put
 -p props - properties file needed for DHI type
 -f scnlfile - SCNL file (space separated) needed for DHI type DC
 -o tankfile - name of remuxed tank to write
 -s YYYY/MM/DD HH:MM:SS - start time  to grab (put in quotes) required.
 -d secs - optional duration in secs to grab (default=600secs).
 -t d or c - type of data center d=DMC/DHI, c=CWB (not supported yet)



If no args are given, the above message is spewed back to the user.

REQUIREMENTS:

1. Java version 1.5 or greater installed and in the path of the user:

	java -version

	should run for you.

2. DHI properties file. An example below is for IRIS DHI and UCBerkeley:

output of iris.txt:
  NameService=corbaloc:iiop:dmc.iris.washington.edu:6371/NameService
  NetworkDNS=edu/iris/dmc
  NetworkDC=IRIS_NetworkDC
  SeismogramDNS=edu/iris/dmc
  SeismogramDC=IRIS_DataCenter

output of ncedc.txt (uc berkeley):

 NameService=corbaloc:iiop:transfrm.geo.berkeley.edu:1050/NameService
 NetworkDNS=edu/berkeley/geo
 NetworkDC=NCEDC_NetworkDC
 SeismogramDNS=edu/berkeley/geo
 SeismogramDC=NCEDC_DataCenter

3. a SCNL file (comma separated Station Channel Network Location per line),
	uses the -- convention for blank location codes as EW does:
Example:
YUH BHZ BK --
CVS BHZ BK --
BDM BHZ BK --

4. DHI2mseed.jar jar file in the current directory where you intend to 
 run the code (we can move this later or point to it via an env var).


5. The ability to write to a directory for working space for miniSEED files
	and a temporary tank file. Note the temporary tank file is removed
	after it is remuxed.

EXAMPLE RUN:

dc2tank -D test -p ncedc.txt -f bk.scnl -s "2007/07/01 00:00:00" -t d -v -o testtank
running DHI2mseed to get mseed files
Processing BDM.BHZ.BK..20070701.000000.mseed
Processing CVS.BHZ.BK..20070701.000000.mseed
Remuxing tank in time order testtank
20070720_UTC_18:44:00 remux_tbuf: finished writing file testtank

The file testtank is a remux'ed  tankbuf suitable for tankplayer'ing.

Note that the miniSEED files are sitting in the directory test (specified by the -D arg).