[W7][M11-1]Lee Chong Wei Justin

docs/UserGuide.adoc

@@ -138,6 +138,11 @@ Views all details of the 1st person in the results of the `find` command.
 Clears all entries from the address book. +
 Format: `clear`
 
+== Sorting all entries : `sort`
+
+Sorts all entries in the address book by name in lexicographical order. +
+Format: `sort`
+
 == Exiting the program : `exit`
 
 Exits the program. +

src/seedu/addressbook/commands/HelpCommand.java

@@ -16,6 +16,7 @@ public class HelpCommand extends Command {
             + "\n" + ClearCommand.MESSAGE_USAGE
             + "\n" + FindCommand.MESSAGE_USAGE
             + "\n" + ListCommand.MESSAGE_USAGE
+            + "\n" + SortCommand.MESSAGE_USAGE
             + "\n" + ViewCommand.MESSAGE_USAGE
             + "\n" + ViewAllCommand.MESSAGE_USAGE
             + "\n" + HelpCommand.MESSAGE_USAGE

src/seedu/addressbook/commands/SortCommand.java

@@ -0,0 +1,21 @@
+package seedu.addressbook.commands;
+
+/**
+ * Sorts all persons in the address book by name in lexicographical order.
+ */
+public class SortCommand extends Command {
+
+    public static final String COMMAND_WORD = "sort";
+
+    public static final String MESSAGE_USAGE = COMMAND_WORD
+            + ": Sorts all persons in the address book by name in lexicographical order.\n"
+            + "Example: " + COMMAND_WORD;
+
+    public static final String MESSAGE_SUCCESS = "Address book sorted.";
+
+    @Override
+    public CommandResult execute() {
+        addressBook.sort();
+        return new CommandResult(MESSAGE_SUCCESS);
+    }
+}

src/seedu/addressbook/data/AddressBook.java

@@ -65,6 +65,13 @@ public void clear() {
         allPersons.clear();
     }
 
+    /**
+     * Sorts all persons in the address book by name in lexicographical order.
+     */
+    public void sort() {
+        allPersons.sort();
+    }
+
     /**
      * Defensively copied UniquePersonList of all persons in the address book at the time of the call.
      */

src/seedu/addressbook/data/person/ComparePerson.java

@@ -0,0 +1,14 @@
+package seedu.addressbook.data.person;
+
+import java.util.Comparator;
+
+/**
+ * Compares person by name
+ */
+public class ComparePerson implements Comparator<Person> {
+
+    @Override
+    public int compare(Person person1, Person person2){
+        return person1.getName().fullName.compareToIgnoreCase(person2.getName().fullName);
+    }
+}

src/seedu/addressbook/data/person/UniquePersonList.java

@@ -113,6 +113,13 @@ public void clear() {
         internalList.clear();
     }
 
+    /**
+     * Sorts all persons in list.
+     */
+    public void sort() {
+        internalList.sort(new ComparePerson());
+    }
+
     @Override
     public Iterator<Person> iterator() {
         return internalList.iterator();

src/seedu/addressbook/parser/Parser.java

@@ -72,6 +72,9 @@ public Command parseCommand(String userInput) {
             case ListCommand.COMMAND_WORD:
                 return new ListCommand();
 
+            case SortCommand.COMMAND_WORD:
+                return new SortCommand();
+
             case ViewCommand.COMMAND_WORD:
                 return prepareView(arguments);