///////////////////////////////////////////////////////////////////
// Copyright (c) 1998, California Institute of Technology.
// ALL RIGHTS RESERVED. U.S. Government Sponsorship acknowledged.
//
// Please read the full copyright notice in the file COPYRIGHT
// in this directory.
//
// Author: Jake Hamby, NASA/Jet Propulsion Laboratory
// Jake.Hamby@jpl.nasa.gov
///////////////////////////////////////////////////////////////////
package dods.util.geturl;
import dods.dap.*;
import dods.util.geturl.gui.StatusWindow;
import dods.util.Getopts;
import dods.util.InvalidSwitch;
import dods.util.OptSwitch;
/** Java port of the geturl command-line client. */
public class Geturl {
/** Version of the client. */
private static final String VERSION = "0.1 Beta";
private static void usage() {
System.err.println("Usage: geturl " +
"[dDagVvk] [c ] [t ] [m ] [ ...]");
System.err.println("[gVvk] [t ] [ ...]");
System.err.println("In the first form of the command, dereference the URL");
System.err.println("perform the requested operations. In the second, assume");
System.err.println("the files are DODS data objects (stored in files or read");
System.err.println("from pipes) and process them as if -D were given.");
System.err.println(" d: For each URL, get the DODS DDS.");
System.err.println(" a: For each URL, get the DODS DAS.");
System.err.println(" D: For each URL, get the DODS Data.");
System.err.println(" g: Show the progress GUI.");
System.err.println(" v: Verbose.");
System.err.println(" V: Version.");
System.err.println(" c: is a contraint expression. Used with -D.");
System.err.println(" NB: You can use a `?' for the CE also.");
System.err.println(" m: Request the same URL timeset.");
System.err.println(" z: Don't ask the server to compress data.");
System.err.println(" p: Dump the DODS Data as binary, not text.");
System.err.println(" Without D, d or a, print the URL.");
}
public static void main(String args[]) {
boolean get_das = false;
boolean get_dds = false;
boolean get_data = false;
boolean dump_data = false;
boolean gui = false;
boolean cexpr = false;
boolean verbose = false;
boolean multi = false;
boolean accept_deflate = true;
int times = 1;
String expr = "";
try {
Getopts opts = new Getopts("daDgVvc:m:zp", args);
if(opts.getSwitch(new Character('d')).set)
get_dds = true;
if(opts.getSwitch(new Character('a')).set)
get_das = true;
if(opts.getSwitch(new Character('D')).set)
get_data = true;
if(opts.getSwitch(new Character('p')).set)
dump_data = get_data = true;
if(opts.getSwitch(new Character('V')).set) {
System.err.println("geturl version: " + VERSION);
System.exit(0);
}
if(opts.getSwitch(new Character('v')).set)
verbose = true;
if(opts.getSwitch(new Character('g')).set)
gui = true;
String optVal;
optVal=opts.getSwitch(new Character('c')).val;
if (optVal != null) {
cexpr = true;
expr = optVal;
}
optVal = opts.getSwitch(new Character('m')).val;
if (optVal != null) {
multi = true;
times = Integer.parseInt(optVal);
}
if(opts.getSwitch(new Character('z')).set)
accept_deflate = false;
// If after processing all the command line options there is nothing left
// (no URL or file) assume that we should read from stdin.
String argp[] = opts.argList();
if(argp.length == 0) {
if (verbose)
System.err.println("Assuming standard input is a DODS data stream.");
DConnect url = new DConnect(System.in);
try {
StatusUI ui = null;
if (gui)
ui = new StatusWindow("stdin");
DataDDS dds = url.getData(ui);
processData(url, dds, verbose, dump_data, accept_deflate);
}
catch (DODSException e) {
System.err.println(e);
System.exit(1);
}
catch (Exception e) {
System.err.println(e);
e.printStackTrace();
System.exit(1);
}
}
for(int i=0; i < argp.length; i++) {
String nextURL = argp[i];
if (verbose)
System.err.println("Fetching: " + nextURL);
DConnect url = null;
try {
url = new DConnect(nextURL, accept_deflate);
}
catch (java.io.FileNotFoundException e) {
System.err.println(nextURL + " is neither a valid URL nor a filename.");
System.exit(1);
}
if (url.isLocal()) {
if (verbose)
System.err.println("Assuming that the argument " + nextURL +
" is a file\n" +
"that contains a DODS data object; decoding.");
try {
StatusUI ui = null;
if (gui)
ui = new StatusWindow(nextURL);
DataDDS dds = url.getData(ui);
processData(url, dds, verbose, dump_data, accept_deflate);
}
catch (DODSException e) {
System.err.println(e);
System.exit(1);
}
catch (Exception e) {
System.err.println(e);
e.printStackTrace();
System.exit(1);
}
}
if (get_das) {
for (int j=0; j < times; j++) {
try {
DAS das = url.getDAS();
if (verbose) {
System.err.println("Server version: " + url.getServerVersion());
System.err.println("DAS:");
}
das.print(System.out);
}
catch (DODSException e) {
System.err.println(e);
e.printStackTrace();
System.exit(1);
}
catch (java.io.FileNotFoundException e) {
System.err.println(e);
System.exit(1);
}
catch (Exception e) {
System.err.println(e);
e.printStackTrace();
System.exit(1);
}
}
}
if (get_dds) {
for (int j=0; j < times; j++) {
try {
DDS dds = url.getDDS();
if (verbose) {
System.err.println("Server version: " + url.getServerVersion());
System.err.println("DDS:");
}
dds.print(System.out);
}
catch (DODSException e) {
System.err.println(e);
System.exit(1);
}
catch (java.io.FileNotFoundException e) {
System.err.println(e);
System.exit(1);
}
catch (Exception e) {
System.err.println(e);
e.printStackTrace();
System.exit(1);
}
}
}
if (get_data) {
if ((cexpr==false) && (nextURL.indexOf('?') == -1)) {
System.err.println("Must supply a constraint expression with -D.");
continue;
}
for (int j=0; j < times; j++) {
try {
StatusUI ui = null;
if (gui)
ui = new StatusWindow(nextURL);
DataDDS dds = url.getData(expr, ui);
processData(url, dds, verbose, dump_data, accept_deflate);
}
catch (DODSException e) {
System.err.println(e);
System.exit(1);
}
catch (java.io.FileNotFoundException e) {
System.err.println(e);
System.exit(1);
}
catch (Exception e) {
System.err.println(e);
e.printStackTrace();
System.exit(1);
}
}
}
}
}
catch (InvalidSwitch e) {
usage();
System.exit(1);
}
// we must explicitly exit in case we opened a StatusWindow which might
// otherwise prevent the Java VM from quitting
System.exit(0);
}
private static void processData(DConnect url, DataDDS dds, boolean verbose,
boolean dump_data, boolean compress) {
if (verbose)
System.err.println("Server version: " + url.getServerVersion());
if (dump_data) {
try {
dds.externalize(System.out, compress, true);
}
catch (java.io.IOException e) {
System.err.println(e);
}
} else {
System.out.println("The data:");
dds.printVal(System.out);
System.out.println();
}
}
}