Changeset 251

Timestamp:

09/02/08 17:57:01 (5 years ago)

Author:

saua

Message:

• support loading&saving CSV files (2 values per line, key and value)
• support boolean values

File:

• bbtracker/trunk/src/org/bbtracker/mobile/config/ConfigFile.java (modified) (8 diffs)

bbtracker/trunk/src/org/bbtracker/mobile/config/ConfigFile.java

@@ -30 +30 @@
 import javax.microedition.io.file.FileConnection;
 
+import org.bbtracker.CsvReader;
 import org.bbtracker.CsvWriter;
 
@@ -159 +160 @@
 
         /**
+         * Create a configuration object and read data from an InputStream in CSV
+         * format.
+         * 
+         * @param in
+         *            InputStream
+         * @return config object
+         * @throws IOException
+         *             io error
+         */
+        public static ConfigFile openCSVConfig(final InputStream in) throws IOException {
+                final ConfigFile self = new ConfigFile();
+
+                try {
+                        final InputStreamReader reader = new InputStreamReader(in);
+                        final CsvReader csv = new CsvReader(reader);
+                        String[] fields;
+                        while ((fields = csv.nextLine()) != null) {
+                                if (fields.length != 2) {
+                                        throw new IOException("Malformed CSV!");
+
+                                }
+                                self.params.put(fields[0], fields[1]);
+                        }
+                } finally {
+                        in.close();
+                }
+
+                return self;
+        }
+
+        /**
          * Save the content of this config file back to a file.
          * 
@@ -173 +205 @@
                 } finally {
                         connection.close();
+                }
+        }
+
+        /**
+         * Save the content of this config back to a OutputStream in CSV format.
+         * 
+         * @param out
+         *            OutputStream
+         * @throws IOException
+         *             io error
+         */
+        public void saveCSVConfig(final OutputStream out) throws IOException {
+                final OutputStreamWriter writer = new OutputStreamWriter(out);
+                final CsvWriter csv = new CsvWriter();
+                try {
+                        final Enumeration keys = params.keys();
+                        final Enumeration values = params.elements();
+                        while (keys.hasMoreElements()) {
+                                final String key = (String) keys.nextElement();
+                                final String value = (String) values.nextElement();
+                                csv.append(key);
+                                csv.append(value);
+                                csv.nl();
+                                writer.write(csv.toString());
+                                csv.reset();
+                        }
+                } finally {
+                        writer.close();
+                        out.close();
                 }
         }
@@ -302 +363 @@
 
         /**
-         * Get matching integer value (or null). throws NumberFormatException on
-         * invalid value.
+         * Get matching integer value. throws NumberFormatException on invalid
+         * value.
          * 
          * @param key
@@ -321 +382 @@
 
         /**
-         * Get matching double value (or null). throws NumberFormatException on
-         * invalid value.
+         * Get matching double value. throws NumberFormatException on invalid value.
          * 
          * @param key
@@ -328 +388 @@
          * @param defaultValue
          *            value
-         * @return integer value or default value if key not found
+         * @return double value or default value if key not found
          */
         public double getDouble(final String key, final double defaultValue) {
@@ -340 +400 @@
 
         /**
+         * Get matching boolean value.
+         * 
+         * @param key
+         *            key
+         * @param defaultValue
+         *            value
+         * @return boolean value or default value if key not found
+         */
+        public boolean getBoolean(final String key, final boolean defaultValue) {
+                final String value = get(key);
+                if (value != null) {
+                        return "true".equals(value);
+                } else {
+                        return defaultValue;
+                }
+        }
+
+        /**
          * Add name / value pair.
          * 
@@ -361 +439 @@
         public void put(final String key, final int value) {
                 put(key, Integer.toString(value));
+        }
+
+        /**
+         * Add name / value pair.
+         * 
+         * @param key
+         *            key
+         * @param value
+         *            value
+         */
+        public void put(final String key, final boolean value) {
+                put(key, value ? "true" : "false");
         }