A simple command-line program to parse files based on a configuration file.

src/main/java/com/solab/iso8583/util/SimpleParser.java

@@ -0,0 +1,67 @@
+package com.solab.iso8583.util;
+
+import com.solab.iso8583.IsoMessage;
+import com.solab.iso8583.IsoValue;
+import com.solab.iso8583.MessageFactory;
+import com.solab.iso8583.parse.ConfigParser;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.URL;
+import java.text.ParseException;
+
+/** A simple command-line program that reads a configuration file to set up a MessageFactory
+ * and parse messages read from STDIN.
+ *
+ * @author Enrique Zamudio
+ *         Date: 20/06/12 02:11
+ */
+public class SimpleParser {
+
+    private static BufferedReader reader;
+
+    private static String getMessage() throws IOException {
+        if (reader == null) {
+            reader = new BufferedReader(new InputStreamReader(System.in));
+        }
+        System.out.println("Paste your ISO8583 message here (no ISO headers): ");
+        return reader.readLine();
+    }
+
+    public static void main(String [] args) throws IOException, ParseException {
+        final MessageFactory mf = new MessageFactory();
+        if (args.length == 0) {
+            ConfigParser.configureFromDefault(mf);
+        } else {
+            if (System.console() != null) {
+                System.console().printf("Attempting to configure MessageFactory from %s...%n", args[0]);
+            }
+            String url = args[0];
+            if (url.contains("://")) {
+                ConfigParser.configureFromUrl(mf, new URL(args[0]));
+            } else {
+                ConfigParser.configureFromUrl(mf, new File(url).toURI().toURL());
+            }
+        }
+        //Now read messages in a loop
+        String line = getMessage();
+        while (line != null && line.length() > 0) {
+            IsoMessage m = mf.parseMessage(line.getBytes(), 0);
+            if (m != null) {
+                System.out.printf("Message type: %04x%n", m.getType());
+                System.out.println("FIELD TYPE    VALUE");
+                for (int i = 2; i <= 128; i++) {
+                    IsoValue<?> f = m.getField(i);
+                    if (f != null) {
+                        System.out.printf("%5d %-6s [", i, f.getType());
+                        System.out.print(f.toString());
+                        System.out.println(']');
+                    }
+                }
+            }
+            line = getMessage();
+        }
+    }
+}