hmi.animation.RenamingMap.java Source code

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Here is the source code for hmi.animation.RenamingMap.java

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/*******************************************************************************
 * The MIT License (MIT)
 * Copyright (c) 2015 University of Twente
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *******************************************************************************/
package hmi.animation;

import java.io.IOException;

import com.google.common.base.CharMatcher;
import com.google.common.base.Charsets;
import com.google.common.base.Splitter;
import com.google.common.collect.BiMap;
import com.google.common.collect.HashBiMap;
import com.google.common.collect.Iterables;
import com.google.common.io.Resources;

/**
 * Parsers a renaming string (of form "oldname1 newname1"\n"oldname2 newname2") into a oldname->newname bidirectional map. 
 * @author hvanwelbergen
 */
public final class RenamingMap {
    private RenamingMap() {
    }

    public static BiMap<String, String> renamingMapFromFileOnClasspath(String filename) throws IOException {
        return renamingMap(Resources.toString(Resources.getResource(filename), Charsets.UTF_8));
    }

    public static BiMap<String, String> renamingMap(String renaming) {
        BiMap<String, String> renamingMap = HashBiMap.create();
        Splitter split = Splitter
                .on(CharMatcher.WHITESPACE
                        .or(CharMatcher.is('\n').or(CharMatcher.is('\r').or(CharMatcher.is('\f')))))
                .trimResults().omitEmptyStrings();
        String[] splittedStr = Iterables.toArray(split.split(renaming), String.class);
        if (splittedStr.length % 2 > 0) {
            throw new IllegalArgumentException("renaming string does not contain an even amount of names");
        }
        for (int i = 0; i < splittedStr.length / 2; i++) {
            renamingMap.put(splittedStr[i * 2], splittedStr[i * 2 + 1]);
        }
        return renamingMap;
    }
}