[W7][T09-2]Jin Shibo

docs/UserGuide.adoc

@@ -73,6 +73,24 @@ Returns `John Doe` but not `john`.
 * `find Betsy Tim John` +
 Returns Any person having names `Betsy`, `Tim`, or `John`.
 
+== Finding all persons with specified phone number: `findp`
+
+Find persons whose phone number matches the given phone number. +
+Format: `findp PHONE_NUMBER`
+
+[NOTE]
+====
+You can only type in one phone number each time.
+====
+
+Examples:
+
+* `findp 98765432` +
+Returns `John Doe`
+
+* `findp 11111111` +
+Returns `Britton`
+
 == Deleting a person : `delete`
 
 Deletes the specified person from the address book. Irreversible. +

src/seedu/addressbook/commands/FindpCommand.java

@@ -0,0 +1,35 @@
+package seedu.addressbook.commands;
+
+import seedu.addressbook.data.person.ReadOnlyPerson;
+import java.lang.String;
+import java.util.*;
+
+public class FindpCommand extends Command{
+    public static final String COMMAND_WORD = "findp";
+    public static final String MESSAGE_USAGE = COMMAND_WORD + ":\n" + "Finds all persons whose phone number matches"
+            + "the specified phone number and displays them as a list with index numbers.\n\t"
+            + "Parameters: PHONE NUMBER\n\t"
+            + "Example: " + COMMAND_WORD + " 12345678";
+
+    private final String phone_number;
+
+    public FindpCommand(String phone_number) {
+        this.phone_number = phone_number;
+    }
+    @Override
+    public CommandResult execute() {
+        final List<ReadOnlyPerson> personsFound = getPersonsWithPhoneNumber(phone_number);
+        return new CommandResult(getMessageForPersonListShownSummary(personsFound), personsFound);
+    }
+    private List<ReadOnlyPerson> getPersonsWithPhoneNumber(String phone_number) {
+        final List<ReadOnlyPerson> matchedPersons = new ArrayList<>();
+        for (ReadOnlyPerson person : addressBook.getAllPersons()) {
+            final String phone_number_of_person = person.getPhone().value;
+            if (phone_number_of_person.equals(phone_number)) {
+                matchedPersons.add(person);
+            }
+        }
+        return matchedPersons;
+    }
+
+}

src/seedu/addressbook/commands/HelpCommand.java

@@ -15,6 +15,7 @@ public class HelpCommand extends Command {
             + "\n" + DeleteCommand.MESSAGE_USAGE
             + "\n" + ClearCommand.MESSAGE_USAGE
             + "\n" + FindCommand.MESSAGE_USAGE
+            + "\n" + FindpCommand.MESSAGE_USAGE
             + "\n" + ListCommand.MESSAGE_USAGE
             + "\n" + ViewCommand.MESSAGE_USAGE
             + "\n" + ViewAllCommand.MESSAGE_USAGE

src/seedu/addressbook/parser/Parser.java

@@ -69,6 +69,9 @@ public Command parseCommand(String userInput) {
             case FindCommand.COMMAND_WORD:
                 return prepareFind(arguments);
 
+            case FindpCommand.COMMAND_WORD:
+                return prepareFindp(arguments);
+
             case ListCommand.COMMAND_WORD:
                 return new ListCommand();
 
@@ -226,5 +229,14 @@ private Command prepareFind(String args) {
         return new FindCommand(keywordSet);
     }
 
+    private Command prepareFindp(String args) {
+        final Matcher matcher = KEYWORDS_ARGS_FORMAT.matcher(args.trim());
+        if (!matcher.matches()) {
+            return new IncorrectCommand(String.format(MESSAGE_INVALID_COMMAND_FORMAT,
+                    FindpCommand.MESSAGE_USAGE));
+        }
+        String phone_number = args.trim();
+        return new FindpCommand(phone_number);
+    }
 
 }