com.anrisoftware.globalpom.constants.Constants Maven / Gradle / Ivy

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/*
 * Copyright 2016 Erwin Müller 
 *
 * Licensed 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 com.anrisoftware.globalpom.constants;

import java.text.ParseException;

import javax.inject.Inject;

import com.anrisoftware.globalpom.format.measurement.MeasureFormat;
import com.anrisoftware.globalpom.measurement.Measure;
import com.google.inject.assistedinject.Assisted;

/**
 * Provides physical constants.
 * 
 * @author Erwin Mueller, [email protected]
 * @since 1.10
 */
public class Constants {

    private final MeasureFormat format;

    @Inject
    private ConstantsResourceProvider resource;

    /**
     * Sets the constant format to parse physical constants.
     * 
     * @param format
     *            the {@link MeasureFormat}.
     */
    @Inject
    Constants(@Assisted MeasureFormat format) {
        this.format = format;
    }

    /**
     * Returns the constant with the specified name.
     * 
     * @param name
     *            the constant name.
     * 
     * @return the physical {@link Measure} constant.
     * 
     * @throws ParseException
     *             if there was an error parse the physical constant.
     */
    public Measure getConstant(String name) throws ParseException {
        return resource.get().getTypedProperty(name, format);
    }
}