Performance improvement:

[jvcard.git] / src / be / nikiroo / jvcard / parsers / AbookParser.java

diff --git a/src/be/nikiroo/jvcard/parsers/AbookParser.java b/src/be/nikiroo/jvcard/parsers/AbookParser.java
index 913db9b70528066c08ee990f392c66285f348302..b8e6e58e47c2187acf5fd80e8b3c046acacf6d33 100644 (file)
--- a/src/be/nikiroo/jvcard/parsers/AbookParser.java
+++ b/src/be/nikiroo/jvcard/parsers/AbookParser.java
@@ -1,5 +1,7 @@
 package be.nikiroo.jvcard.parsers;
 
+import java.io.IOException;
+import java.util.Arrays;
 import java.util.LinkedList;
 import java.util.List;
 
@@ -8,7 +10,17 @@ import be.nikiroo.jvcard.Contact;
 import be.nikiroo.jvcard.Data;
 
 public class AbookParser {
-       public static List<Contact> parse(List<String> lines) {
+       /**
+        * Load the given data from under the given {@link Format}.
+        * 
+        * @param lines
+        *            the input to load from
+        * @param format
+        *            the {@link Format} to load as
+        * 
+        * @return the list of elements
+        */
+       public static List<Contact> parseContact(List<String> lines) {
                List<Contact> contacts = new LinkedList<Contact>();
 
                for (String line : lines) {
@@ -33,8 +45,24 @@ public class AbookParser {
                return contacts;
        }
 
-       // -1 = no bkeys
-       public static String toString(Contact contact, int startingBKey) {
+       /**
+        * Return a {@link String} representation of the given {@link Card}, line by
+        * line.
+        * 
+        * <p>
+        * Note that the BKey is actually not used in Pine mode.
+        * </p>
+        * 
+        * @param card
+        *            the card to convert
+        * 
+        * @param startingBKey
+        *            the starting BKey number (all the other will follow) or -1 for
+        *            no BKey
+        * 
+        * @return the {@link String} representation
+        */
+       public static List<String> toStrings(Contact contact, int startingBKey) {
                // BKey is not used in pine mode
 
                StringBuilder builder = new StringBuilder();
@@ -84,16 +112,65 @@ public class AbookParser {
                // note: save as pine means normal LN, nor CRLN
                builder.append('\n');
 
-               return builder.toString();
+               return Arrays.asList(new String[] { builder.toString() });
        }
 
-       public static String toString(Card card) {
-               StringBuilder builder = new StringBuilder();
+       /**
+        * Return a {@link String} representation of the given {@link Card}, line by
+        * line.
+        * 
+        * @param card
+        *            the card to convert
+        * 
+        * @return the {@link String} representation
+        */
+       public static List<String> toStrings(Card card) {
+               List<String> lines = new LinkedList<String>();
 
                for (int index = 0; index < card.size(); index++) {
-                       builder.append(toString(card.get(index), -1));
+                       lines.addAll(toStrings(card.get(index), -1));
                }
 
-               return builder.toString();
+               return lines;
+       }
+
+       /**
+        * Write the given {@link Contact} in the {@link Appendable}.
+        * 
+        * @param writer
+        *            the {@link Appendable}
+        * @param contact
+        *            the {@link Contact} to write
+        * @param startingBKey
+        *            the starting BKey number (all the other will follow) or -1 for
+        *            no BKey
+        * 
+        * @throws IOException
+        *             in case of IO error
+        */
+       public static void write(Appendable writer, Contact contact,
+                       int startingBKey) throws IOException {
+               for (String s : toStrings(contact, startingBKey)) {
+                       writer.append(s);
+                       writer.append('\n');
+               }
+       }
+
+       /**
+        * Write the given {@link Card} in the {@link Appendable}.
+        * 
+        * @param writer
+        *            the {@link Appendable}
+        * @param card
+        *            the {@link Card} to write
+        * 
+        * @throws IOException
+        *             in case of IO error
+        */
+       public static void write(Appendable writer, Card card) throws IOException {
+               for (String s : toStrings(card)) {
+                       writer.append(s);
+                       writer.append('\n');
+               }
        }
 }