1/*
2 * Copyright (C) 2011 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
17
18package android.filterpacks.text;
19
20import android.filterfw.core.Filter;
21import android.filterfw.core.FilterContext;
22import android.filterfw.core.Frame;
23import android.filterfw.core.FrameFormat;
24import android.filterfw.format.ObjectFormat;
25
26import java.util.Locale;
27
28/**
29 * @hide
30 */
31public class ToUpperCase extends Filter {
32
33    private FrameFormat mOutputFormat;
34
35    public ToUpperCase(String name) {
36        super(name);
37    }
38
39    @Override
40    public void setupPorts() {
41        mOutputFormat = ObjectFormat.fromClass(String.class, FrameFormat.TARGET_SIMPLE);
42        addMaskedInputPort("mixedcase", mOutputFormat);
43        addOutputPort("uppercase", mOutputFormat);
44    }
45
46    @Override
47    public void process(FilterContext env) {
48        Frame input = pullInput("mixedcase");
49        String inputString = (String)input.getObjectValue();
50
51        Frame output = env.getFrameManager().newFrame(mOutputFormat);
52        output.setObjectValue(inputString.toUpperCase(Locale.getDefault()));
53
54        pushOutput("uppercase", output);
55    }
56
57}
58