DateIntervalFormat_Delegate.java revision 0d7ebc51ffb63f886af2196f05910925126726b9 
1/*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package libcore.icu;
18
19import java.text.FieldPosition;
20
21import com.android.ide.common.rendering.api.LayoutLog;
22import com.android.layoutlib.bridge.Bridge;
23import com.android.layoutlib.bridge.impl.DelegateManager;
24import com.android.tools.layoutlib.annotations.LayoutlibDelegate;
25import com.ibm.icu.text.DateIntervalFormat;
26import com.ibm.icu.util.DateInterval;
27import com.ibm.icu.util.TimeZone;
28import com.ibm.icu.util.ULocale;
29
30public class DateIntervalFormat_Delegate {
31
32    // ---- delegate manager ----
33    private static final DelegateManager<DateIntervalFormat_Delegate> sManager =
34            new DelegateManager<DateIntervalFormat_Delegate>(DateIntervalFormat_Delegate.class);
35
36    // ---- delegate data ----
37    private DateIntervalFormat mFormat;
38
39
40    // ---- native methods ----
41
42    @LayoutlibDelegate
43    /*package*/static String formatDateInterval(long address, long fromDate, long toDate) {
44        DateIntervalFormat_Delegate delegate = sManager.getDelegate((int)address);
45        if (delegate == null) {
46            Bridge.getLog().error(LayoutLog.TAG_BROKEN,
47                    "Unable for find native DateIntervalFormat", null);
48            return null;
49        }
50        DateInterval interval = new DateInterval(fromDate, toDate);
51        StringBuffer sb = new StringBuffer();
52        FieldPosition pos = new FieldPosition(0);
53        delegate.mFormat.format(interval, sb, pos);
54        return sb.toString();
55    }
56
57    @LayoutlibDelegate
58    /*package*/ static long createDateIntervalFormat(String skeleton, String localeName,
59            String tzName) {
60        TimeZone prevDefaultTz = TimeZone.getDefault();
61        TimeZone.setDefault(TimeZone.getTimeZone(tzName));
62        DateIntervalFormat_Delegate newDelegate = new DateIntervalFormat_Delegate();
63        newDelegate.mFormat =
64                DateIntervalFormat.getInstance(skeleton, new ULocale(localeName));
65        TimeZone.setDefault(prevDefaultTz);
66        return sManager.addNewDelegate(newDelegate);
67    }
68
69    @LayoutlibDelegate
70    /*package*/ static void destroyDateIntervalFormat(long address) {
71        sManager.removeJavaReferenceFor((int)address);
72    }
73
74}
75