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
26/**
27 * @hide
28 */
29public class ToUpperCase extends Filter {
30
31    private FrameFormat mOutputFormat;
32
33    public ToUpperCase(String name) {
34        super(name);
35    }
36
37    @Override
38    public void setupPorts() {
39        mOutputFormat = ObjectFormat.fromClass(String.class, FrameFormat.TARGET_SIMPLE);
40        addMaskedInputPort("mixedcase", mOutputFormat);
41        addOutputPort("uppercase", mOutputFormat);
42    }
43
44    @Override
45    public void process(FilterContext env) {
46        Frame input = pullInput("mixedcase");
47        String inputString = (String)input.getObjectValue();
48
49        Frame output = env.getFrameManager().newFrame(mOutputFormat);
50        output.setObjectValue(inputString.toUpperCase());
51
52        pushOutput("uppercase", output);
53    }
54
55}
56