1 files changed, 126 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/helper/DateBuilder.java b/src/main/java/org/traccar/helper/DateBuilder.java
new file mode 100644
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+++ b/src/main/java/org/traccar/helper/DateBuilder.java
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+/*
+ * Copyright 2015 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.helper;
+
+import java.util.Calendar;
+import java.util.Date;
+import java.util.TimeZone;
+
+public class DateBuilder {
+
+    private Calendar calendar;
+
+    public DateBuilder() {
+        this(TimeZone.getTimeZone("UTC"));
+    }
+
+    public DateBuilder(Date time) {
+        this(time, TimeZone.getTimeZone("UTC"));
+    }
+
+    public DateBuilder(TimeZone timeZone) {
+        this(new Date(0), timeZone);
+    }
+
+    public DateBuilder(Date time, TimeZone timeZone) {
+        calendar = Calendar.getInstance(timeZone);
+        calendar.clear();
+        calendar.setTimeInMillis(time.getTime());
+    }
+
+    public DateBuilder setYear(int year) {
+        if (year < 100) {
+            year += 2000;
+        }
+        calendar.set(Calendar.YEAR, year);
+        return this;
+    }
+
+    public DateBuilder setMonth(int month) {
+        calendar.set(Calendar.MONTH, month - 1);
+        return this;
+    }
+
+    public DateBuilder setDay(int day) {
+        calendar.set(Calendar.DAY_OF_MONTH, day);
+        return this;
+    }
+
+    public DateBuilder setDate(int year, int month, int day) {
+        return setYear(year).setMonth(month).setDay(day);
+    }
+
+    public DateBuilder setDateReverse(int day, int month, int year) {
+        return setDate(year, month, day);
+    }
+
+    public DateBuilder setCurrentDate() {
+        Calendar now = Calendar.getInstance(calendar.getTimeZone());
+        return setYear(now.get(Calendar.YEAR)).setMonth(now.get(Calendar.MONTH)).setDay(now.get(Calendar.DAY_OF_MONTH));
+    }
+
+    public DateBuilder setHour(int hour) {
+        calendar.set(Calendar.HOUR_OF_DAY, hour);
+        return this;
+    }
+
+    public DateBuilder setMinute(int minute) {
+        calendar.set(Calendar.MINUTE, minute);
+        return this;
+    }
+
+    public DateBuilder addMinute(int minute) {
+        calendar.add(Calendar.MINUTE, minute);
+        return this;
+    }
+
+    public DateBuilder setSecond(int second) {
+        calendar.set(Calendar.SECOND, second);
+        return this;
+    }
+
+    public DateBuilder addSeconds(long seconds) {
+        calendar.setTimeInMillis(calendar.getTimeInMillis() + seconds * 1000);
+        return this;
+    }
+
+    public DateBuilder setMillis(int millis) {
+        calendar.set(Calendar.MILLISECOND, millis);
+        return this;
+    }
+
+    public DateBuilder addMillis(long millis) {
+        calendar.setTimeInMillis(calendar.getTimeInMillis() + millis);
+        return this;
+    }
+
+    public DateBuilder setTime(int hour, int minute, int second) {
+        return setHour(hour).setMinute(minute).setSecond(second);
+    }
+
+    public DateBuilder setTimeReverse(int second, int minute, int hour) {
+        return setHour(hour).setMinute(minute).setSecond(second);
+    }
+
+    public DateBuilder setTime(int hour, int minute, int second, int millis) {
+        return setHour(hour).setMinute(minute).setSecond(second).setMillis(millis);
+    }
+
+    public Date getDate() {
+        return calendar.getTime();
+    }
+
+}