/*
 * Copyright 2016 Huawei Technologies Co., Ltd.
 *
 * 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.onap.vfc.nfvo.vnfm.svnfm.vnfmadapter.common.restclient;

import java.io.Reader;

import org.apache.commons.io.LineIterator;

/**
 * Helper for read line.<br/>
 * <p>
 * </p>
 * 
 * @author
 * @version 31-May-2016
 */
public class ReaderHelper {

    private LineIterator ite = null;

    /**
     * Constructor<br/>
     * <p>
     * </p>
     * 
     * @since
     * @param reader
     */
    public ReaderHelper(final Reader reader) {
        if(reader != null) {
            ite = new LineIterator(reader);
        }

    }

    /**
     * Gets the next line.<br/>
     * 
     * @return line if present else null.
     * @since
     */
    public String getLine() {
        if(ite != null && ite.hasNext()) {
            return ite.nextLine();
        }
        return null;
    }
}