at.ac.tuwien.big.momot.problem.unit.parameter.increment.IncrementalStringValue.java Source code

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/*******************************************************************************
 * Copyright (c) 2015 Vienna University of Technology.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * Martin Fleck (Vienna University of Technology) - initial API and implementation
 *
 * Initially developed in the context of ARTIST EU project www.artist-project.eu
 *******************************************************************************/
package at.ac.tuwien.big.momot.problem.unit.parameter.increment;

import at.ac.tuwien.big.moea.util.TextUtil;
import at.ac.tuwien.big.momot.problem.unit.parameter.IParameterValue;

import org.apache.commons.lang.StringUtils;

public class IncrementalStringValue implements IParameterValue<String> {

    public enum StringMode {
        UPPER, LOWER, CAPITALIZED
    }

    private StringMode mode = StringMode.CAPITALIZED;
    private String prefix = "";
    private String suffix = "";
    private final String initialValue;
    private String next;

    public IncrementalStringValue() {
        this(1);
    }

    public IncrementalStringValue(final int startLength) {
        this("", StringUtils.repeat("a", startLength), "", StringMode.LOWER);
    }

    public IncrementalStringValue(final String startString) {
        this("", startString);
    }

    public IncrementalStringValue(final String prefix, final String value) {
        this(prefix, value, "");
    }

    public IncrementalStringValue(final String prefix, final String value, final String suffix) {
        this(prefix, value, suffix, StringMode.LOWER);
    }

    public IncrementalStringValue(final String prefix, final String initialValue, final String suffix,
            final StringMode mode) {
        this.prefix = prefix;
        this.initialValue = initialValue;
        this.next = initialValue;
        this.suffix = suffix;
        this.mode = mode;
    }

    @Override
    public String getInitialValue() {
        return initialValue;
    }

    public StringMode getMode() {
        return mode;
    }

    public String getPrefix() {
        return prefix;
    }

    public String getSuffix() {
        return suffix;
    }

    @Override
    public String nextValue() {
        String toReturn = next;
        next = TextUtil.increment(next);

        switch (mode) {
        case CAPITALIZED:
            toReturn = StringUtils.capitalize(toReturn);
            break;
        case UPPER:
            toReturn = toReturn.toUpperCase();
            break;
        default:
            break;
        }
        return getPrefix() + toReturn + getSuffix();
    }

    public IncrementalStringValue setMode(final StringMode mode) {
        this.mode = mode;
        return this;
    }

    public IncrementalStringValue setPrefix(final String prefix) {
        this.prefix = prefix;
        return this;
    }

    public IncrementalStringValue setSuffix(final String suffix) {
        this.suffix = suffix;
        return this;
    }
}