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/*
 * Copyright 2009 Alin Dreghiciu.
 *
 * 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 org.ops4j.pax.exam.options;

import org.ops4j.pax.exam.Option;

/**
 * Option specifying framework start level.
 * 
 * @author Alin Dreghiciu ([email protected])
 * @since 0.5.0, April 23, 2009
 */
public class FrameworkStartLevelOption implements Option {

    /**
     * Start level.
     */
    private final int startLevel;

    /**
     * Constructor.
     * 
     * @param startLevel
     *            framework start level (must be bigger then zero)
     * 
     * @throws IllegalArgumentException
     *             - If start level is <= 0
     */
    public FrameworkStartLevelOption(final int startLevel) {
        if (startLevel <= 0) {
            throw new IllegalArgumentException("Start level must be bigger then zero");
        }
        this.startLevel = startLevel;
    }

    /**
     * Getter.
     * 
     * @return startlevel (bigger then zero)
     */
    public int getStartLevel() {
        return startLevel;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String toString() {
        return new StringBuilder().append(FrameworkStartLevelOption.class.getSimpleName())
            .append("{startlevel='").append(startLevel).append("\'}").toString();
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + startLevel;
        return result;
    }

    // CHECKSTYLE:OFF : generated code    
    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        FrameworkStartLevelOption other = (FrameworkStartLevelOption) obj;
        if (startLevel != other.startLevel)
            return false;
        return true;
    }
    // CHECKSTYLE:ON
}