org.jclouds.virtualbox.functions.StringToKeyCode.java Source code

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Here is the source code for org.jclouds.virtualbox.functions.StringToKeyCode.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.jclouds.virtualbox.functions;

import java.util.Collection;
import java.util.List;

import org.jclouds.virtualbox.settings.KeyboardScancodes;

import com.google.common.base.Function;
import com.google.common.base.Splitter;
import com.google.common.collect.Lists;

public class StringToKeyCode implements Function<String, List<Integer>> {

    @Override
    public List<Integer> apply(String subsequence) {
        return stringToKeycode(subsequence);
    }

    private List<Integer> stringToKeycode(String s) {
        if (containsSpecialCharacter(s)) {
            return transformSpecialCharIntoKeycodes(s);
        } else {
            return transformStandardCharacterIntoKeycodes(s);
        }
    }

    private List<Integer> transformStandardCharacterIntoKeycodes(String s) {
        List<Integer> values = Lists.newArrayList();
        for (String digit : Splitter.fixedLength(1).split(s)) {
            Collection<Integer> hex = KeyboardScancodes.NORMAL_KEYBOARD_BUTTON_MAP_LIST.get(digit);
            if (hex != null)
                values.addAll(hex);
        }
        values.addAll(KeyboardScancodes.SPECIAL_KEYBOARD_BUTTON_MAP_LIST.get("<Spacebar>"));
        return values;
    }

    private List<Integer> transformSpecialCharIntoKeycodes(String s) {
        List<Integer> values = Lists.newArrayList();
        for (String special : s.split("<")) {
            Collection<Integer> value = KeyboardScancodes.SPECIAL_KEYBOARD_BUTTON_MAP_LIST.get("<" + special);
            if (value != null)
                values.addAll(value);
        }
        return values;
    }

    private boolean containsSpecialCharacter(String s) {
        return s.startsWith("<");
    }
}