add HolidayManager

app/src/main/java/org/cutem/cutecalendar/model/HolidayManager.java

@@ -0,0 +1,96 @@
+package org.cutem.cutecalendar.model;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import org.cutem.cutecalendar.util.CalendarUtil;
+import org.jetbrains.annotations.NotNull;
+
+import java.io.BufferedInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.Calendar;
+
+public class HolidayManager {
+    private static final String HOLIDAY_FILE = "res/holiday.json";
+
+
+    private static HolidayManager ourInstance;
+    private JsonArray mHoliday;
+    private JsonArray mWorkday;
+    private ClassLoader mClassLoader = getClass().getClassLoader();
+
+    private HolidayManager() {
+        loadHoliday();
+    }
+
+    public static HolidayManager getInstance() {
+        if (ourInstance == null) {
+            ourInstance = new HolidayManager();
+        }
+        return ourInstance;
+    }
+
+    private void loadHoliday() {
+        try (
+                InputStream in = new BufferedInputStream(mClassLoader.getResourceAsStream(HOLIDAY_FILE))
+        ) {
+            InputStreamReader reader = new InputStreamReader(in);
+            JsonObject o = new JsonParser().parse(reader).getAsJsonObject();
+
+            mHoliday = o.get("holiday").getAsJsonArray();
+            mWorkday = o.get("workday").getAsJsonArray();
+
+        } catch (IOException ex) {
+            mHoliday = new JsonArray();
+            mWorkday = new JsonArray();
+        }
+    }
+
+
+    public String getFestivalName(@NotNull Calendar date) {
+        for (JsonElement e : mHoliday) {
+            JsonObject o = e.getAsJsonObject();
+            String time = o.get("holiday_time").getAsString();
+            Calendar c = CalendarUtil.constructCalendar(time, "0:0");
+
+            if (c != null && CalendarUtil.isSameDay(c, date)) {
+                return o.get("name").getAsString();
+            }
+        }
+
+        return null;
+    }
+
+    public boolean isInHoliday(@NotNull Calendar date) {
+        for (JsonElement e : mHoliday) {
+            String bgn = e.getAsJsonObject().get("start_time").getAsString();
+            String end = e.getAsJsonObject().get("end_time").getAsString();
+
+            Calendar c1 = CalendarUtil.constructCalendar(bgn, "0:0");
+            Calendar c2 = CalendarUtil.constructCalendar(end, "23:59");
+
+            if (!date.before(c1) && !date.after(c2)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public boolean isWorkday(@NotNull Calendar date) {
+        for (JsonElement e : mWorkday) {
+            String time = e.getAsString();
+            Calendar c = CalendarUtil.constructCalendar(time, "0:0");
+
+            if (c != null && CalendarUtil.isSameDay(c, date)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+}

app/src/test/java/org/cutem/cutecalendar/model/HolidayManagerTest.java

@@ -0,0 +1,49 @@
+package org.cutem.cutecalendar.model;
+
+import org.cutem.cutecalendar.util.CalendarUtil;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.util.Calendar;
+
+import static org.junit.Assert.*;
+
+public class HolidayManagerTest {
+
+    @Before
+    public void setUp() {
+    }
+
+    @After
+    public void tearDown() {
+    }
+
+    @Test
+    public void getFestivalName() {
+        HolidayManager manager = HolidayManager.getInstance();
+        String nameExpected = "yuandan";
+        String ans = manager.getFestivalName(CalendarUtil.constructCalendar("2018-1-1", "0:0"));
+        System.out.println(ans);
+        assertEquals(ans, nameExpected);
+        assertNull(manager.getFestivalName(CalendarUtil.constructCalendar("2018-2-1", "0:0")));
+    }
+
+    @Test
+    public void isInHoliday() {
+        HolidayManager manager = HolidayManager.getInstance();
+        Calendar date = CalendarUtil.constructCalendar("2018-1-1", "0:0");
+        assertTrue(manager.isInHoliday(date));
+        date = CalendarUtil.constructCalendar("2018-1-2", "0:0");
+        assertFalse(manager.isInHoliday(date));
+    }
+
+    @Test
+    public void isWorkday() {
+        HolidayManager manager = HolidayManager.getInstance();
+        Calendar date = CalendarUtil.constructCalendar("2018-2-11", "0:0");
+        assertTrue(manager.isWorkday(date));
+        date = CalendarUtil.constructCalendar("2018-2-12", "0:0");
+        assertFalse(manager.isWorkday(date));
+    }
+}