/*
 * Copyright 2016-2018 Red Hat, Inc. and/or its affiliates
 * and other contributors as indicated by the @author tags.
 *
 * 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.jboss.galleon.xml;

import java.io.Reader;

import javax.xml.stream.XMLStreamException;

import org.jboss.galleon.Errors;
import org.jboss.galleon.ProvisioningDescriptionException;
import org.jboss.galleon.spec.FeaturePackSpec;


/**
 *
 * @author Alexey Loubyansky
 */
public class FeaturePackXmlParser implements XmlParser<FeaturePackSpec>{

    private static final FeaturePackXmlParser INSTANCE = new FeaturePackXmlParser();

    public static FeaturePackXmlParser getInstance() {
        return INSTANCE;
    }

    private FeaturePackXmlParser() {
    }

    public void parse(final Reader input, final FeaturePackSpec.Builder fpBuilder) throws XMLStreamException {
        XmlParsers.parse(input, fpBuilder);
    }

    @Override
    public FeaturePackSpec parse(Reader input) throws XMLStreamException {
        final FeaturePackSpec.Builder fpBuilder = FeaturePackSpec.builder();
        parse(input, fpBuilder);
        try {
            return fpBuilder.build();
        } catch (ProvisioningDescriptionException e) {
            throw new XMLStreamException(Errors.parseXml(), e);
        }
    }
}
