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/*
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* This program is a part of the IoTa project.
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*
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* Copyright © 2013 Université de Caen Basse-Normandie, GREYC
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* <http://www.gnu.org/licenses/>
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*
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* See AUTHORS for a list of contributors.
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*/
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package fr.unicaen.iota.eta.capture;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.io.OutputStreamWriter;
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import java.io.StringWriter;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import javax.xml.bind.JAXBContext;
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import javax.xml.bind.JAXBElement;
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import javax.xml.bind.JAXBException;
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import javax.xml.bind.Marshaller;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.fosstrak.epcis.captureclient.CaptureClient;
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import org.fosstrak.epcis.captureclient.CaptureClientException;
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import org.fosstrak.epcis.model.Document;
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import org.fosstrak.epcis.model.EPCISDocumentType;
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import org.fosstrak.epcis.model.EPCISMasterDataDocumentType;
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import org.fosstrak.epcis.model.ObjectFactory;
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public class ETaCaptureClient extends CaptureClient {
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private final String pksFilename;
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private final String pksPassword;
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private final String trustPksFilename;
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private final String trustPksPassword;
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private static final Log log = LogFactory.getLog(ETaCaptureClient.class);
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public ETaCaptureClient(String url, Object[] authOptions,
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String pksFilename, String pksPassword, String trustPksFilename, String trustPksPassword) {
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super(url, authOptions);
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this.pksFilename = pksFilename;
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this.pksPassword = pksPassword;
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this.trustPksFilename = trustPksFilename;
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this.trustPksPassword = trustPksPassword;
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}
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public ETaCaptureClient(String url, String pksFilename, String pksPassword,
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String trustPksFilename, String trustPksPassword) {
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super(url);
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this.pksFilename = pksFilename;
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this.pksPassword = pksPassword;
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this.trustPksFilename = trustPksFilename;
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this.trustPksPassword = trustPksPassword;
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}
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/**
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* {@inheritDoc
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*/
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@Override
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public int dbReset() throws CaptureClientException {
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String formParam = "dbReset=true";
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try {
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return doPost(formParam, "application/x-www-form-urlencoded");
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} catch (IOException e) {
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throw new CaptureClientException("error communicating with EPCIS cpature interface: " + e.getMessage(), e);
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public int capture(final InputStream xmlStream) throws CaptureClientException {
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try {
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return doPost(xmlStream, "text/xml");
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} catch (IOException e) {
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throw new CaptureClientException("error communicating with EPCIS cpature interface: " + e.getMessage(), e);
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public int capture(final String eventXml) throws CaptureClientException {
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try {
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return doPost(eventXml, "text/xml");
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} catch (IOException e) {
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throw new CaptureClientException("error communicating with EPCIS cpature interface: " + e.getMessage(), e);
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public int capture(final Document epcisDoc) throws CaptureClientException {
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StringWriter writer = new StringWriter();
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ObjectFactory objectFactory = new ObjectFactory();
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try {
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JAXBContext context = JAXBContext.newInstance("org.fosstrak.epcis.model");
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JAXBElement<? extends Document> item;
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if (epcisDoc instanceof EPCISDocumentType) {
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item = objectFactory.createEPCISDocument((EPCISDocumentType) epcisDoc);
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} else {
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item = objectFactory.createEPCISMasterDataDocument((EPCISMasterDataDocumentType) epcisDoc);
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}
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Marshaller marshaller = context.createMarshaller();
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marshaller.setProperty(Marshaller.JAXB_ENCODING, "UTF-8");
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marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
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marshaller.marshal(item, writer);
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} catch (JAXBException e) {
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throw new CaptureClientException("error serializing EPCIS Document: " + e.getMessage(), e);
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}
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return capture(writer.toString());
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}
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/**
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* Send data to the repository's capture operation using HTTP POST. The data
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* will be sent using the given content-type.
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* @param data The data to send.
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* @return The HTTP response message from the repository.
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* @throws IOException If an error on the HTTP layer occurred.
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* @throws CaptureClientException
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*/
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private int doPost(final InputStream data, final String contentType) throws IOException, CaptureClientException {
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HttpURLConnection connection = getConnection(contentType);
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// read from input and write to output
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OutputStream os = connection.getOutputStream();
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int b;
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while ((b = data.read()) != -1) {
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os.write(b);
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}
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os.flush();
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os.close();
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return connection.getResponseCode();
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}
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/**
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* Send data to the repository's capture operation using HTTP POST. The data
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* will be sent using the given content-type.
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* @param data The data to send.
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* @return The HTTP response message
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* @throws IOException If an error on the HTTP layer occurred.
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*/
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private int doPost(final String data, final String contentType) throws CaptureClientException, IOException {
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HttpURLConnection connection = getConnection(contentType);
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// write the data
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OutputStreamWriter wr = new OutputStreamWriter(connection.getOutputStream());
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wr.write(data);
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wr.flush();
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wr.close();
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return connection.getResponseCode();
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}
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/**
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* Opens a connection to the EPCIS capture interface.
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* @param contentType The HTTP content-type, e.g., <code>text/xml</code>
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* @return The HTTP connection object.
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*/
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private HttpURLConnection getConnection(final String contentType) throws CaptureClientException, IOException {
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System.setProperty("javax.net.ssl.keyStore", pksFilename);
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System.setProperty("javax.net.ssl.keyStorePassword", pksPassword);
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System.setProperty("javax.net.ssl.trustStore", trustPksFilename);
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System.setProperty("javax.net.ssl.trustStorePassword", trustPksPassword);
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URL serviceUrl = new URL(getCaptureUrl());
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HttpURLConnection connection = (HttpURLConnection) serviceUrl.openConnection();
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connection.setRequestProperty("content-type", contentType);
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connection.setRequestMethod("POST");
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connection.setDoInput(true);
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connection.setDoOutput(true);
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return connection;
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}
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}
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