be.fedict.trust.tsl.TSLParser.java Source code

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Here is the source code for be.fedict.trust.tsl.TSLParser.java

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/*
 * Java Trust Project.
 * Copyright (C) 2009-2011 FedICT.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License version
 * 3.0 as published by the Free Software Foundation.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, see 
 * http://www.gnu.org/licenses/.
 */

package be.fedict.trust.tsl;

import java.io.InputStream;
import java.math.BigInteger;
import java.security.PublicKey;
import java.util.LinkedList;
import java.util.List;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Unmarshaller;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import be.fedict.eid.tsl.jaxb.tsl.ObjectFactory;
import be.fedict.eid.tsl.jaxb.tsl.TSLSchemeInformationType;
import be.fedict.eid.tsl.jaxb.tsl.TrustStatusListType;

/**
 * @author Frank Cornelis
 * 
 */
public class TSLParser {

    private static final Log LOG = LogFactory.getLog(TSLParser.class);

    private final InputStream tslInputStream;

    private final PublicKey tslSignerPublicKey;

    private final List<TSLConsumer> tslConsumers;

    /**
     * Main constructor.
     * 
     * @param tslInputStream
     * @param tslSignerPublicKey
     */
    public TSLParser(InputStream tslInputStream, PublicKey tslSignerPublicKey) {
        this.tslInputStream = tslInputStream;
        this.tslSignerPublicKey = tslSignerPublicKey;
        this.tslConsumers = new LinkedList<TSLConsumer>();
    }

    public void addTSLConsumer(TSLConsumer tslConsumer) {
        this.tslConsumers.add(tslConsumer);
    }

    public void parseTrustedList() {
        TrustStatusListType trustStatusList;
        try {
            trustStatusList = parseTslInputStream();
        } catch (JAXBException e) {
            throw new RuntimeException("TSL parsing error: " + e.getMessage(), e);
        }
        LOG.debug("TSL parsed");
        TSLSchemeInformationType tslSchemeInformation = trustStatusList.getSchemeInformation();
        BigInteger tslSequenceNumber = tslSchemeInformation.getTSLSequenceNumber();
        LOG.debug("TSL sequence number: " + tslSequenceNumber);
        for (TSLConsumer tslConsumer : this.tslConsumers) {
            tslConsumer.setTSLSequenceNumber(tslSequenceNumber);
        }
    }

    private TrustStatusListType parseTslInputStream() throws JAXBException {
        Unmarshaller unmarshaller = getUnmarshaller();
        JAXBElement<TrustStatusListType> jaxbElement = (JAXBElement<TrustStatusListType>) unmarshaller
                .unmarshal(this.tslInputStream);
        TrustStatusListType trustServiceStatusList = jaxbElement.getValue();
        return trustServiceStatusList;
    }

    private Unmarshaller getUnmarshaller() throws JAXBException {
        JAXBContext jaxbContext = JAXBContext.newInstance(ObjectFactory.class);
        Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
        return unmarshaller;
    }
}