113 lines
3.4 KiB
Java
113 lines
3.4 KiB
Java
package envoy.client;
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import java.io.IOException;
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import java.time.Instant;
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import java.util.Properties;
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import javax.ws.rs.client.Client;
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import javax.ws.rs.client.ClientBuilder;
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import javax.ws.rs.client.Entity;
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import javax.ws.rs.client.WebTarget;
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import javax.ws.rs.core.Response;
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import javax.xml.bind.JAXBContext;
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import javax.xml.bind.JAXBException;
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import javax.xml.bind.Marshaller;
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import javax.xml.datatype.DatatypeConfigurationException;
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import javax.xml.datatype.DatatypeFactory;
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import envoy.schema.Message;
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import envoy.schema.ObjectFactory;
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/**
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* Project: <strong>envoy-client</strong><br>
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* File: <strong>EnvoyClient.java</strong><br>
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* Created: <strong>28 Sep 2019</strong><br>
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* Author: <strong>Kai S. K. Engelbart & Maximilian Käfer</strong>
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*/
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public class EnvoyClient {
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private DatatypeFactory datatypeFactory;
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private static final Properties serverProps = new Properties();
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static {
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ClassLoader loader = Thread.currentThread().getContextClassLoader();
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try {
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serverProps.load(loader.getResourceAsStream("server.properties"));
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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public EnvoyClient() {
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try {
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datatypeFactory = DatatypeFactory.newInstance();
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} catch (DatatypeConfigurationException e) {
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e.printStackTrace();
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}
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}
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/**
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* Sends a message with text content to the server.<br>
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* Because sending a request is a blocking operation, it is executed
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* asynchronously.
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*
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* @param sender Name of the sender
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* @param recipient Name of the recipient
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* @param textContent Content (text) of the message
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*/
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public void sendMessage(Message message) {
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new Thread(() -> {
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// Print message XML to console
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JAXBContext jc;
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try {
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jc = JAXBContext.newInstance("envoy.schema");
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Marshaller m = jc.createMarshaller();
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m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
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m.marshal(message, System.out);
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} catch (JAXBException e) {
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e.printStackTrace();
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}
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// Send message
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String url = String.format("%s:%s/envoy-server/rest/message/send",
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serverProps.getProperty("server"),
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serverProps.getProperty("port"));
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Client client = ClientBuilder.newClient();
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WebTarget target = client.target(url);
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Response response = target.request().post(Entity.entity(message, "application/xml"));
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System.out.println("Response code: " + response.getStatus());
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response.close();
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client.close();
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}).start();
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}
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/**
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* Creates a {@link Message} object serializable to XML.
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*
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* @param senderID The ID of the sender
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* @param recipientID The ID of the recipient
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* @param textContent The content (text) of the message
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* @return Prepared {@link Message} object
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*/
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public Message createMessage(String senderID, String recipientID, String textContent) {
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ObjectFactory factory = new ObjectFactory();
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Message.MetaData metaData = factory.createMessageMetaData();
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metaData.setSender(senderID);
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metaData.setRecipient(recipientID);
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metaData.setState(false);
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metaData.setDate(datatypeFactory.newXMLGregorianCalendar(Instant.now().toString()));
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Message.Content content = factory.createMessageContent();
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content.setType("text");
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content.setText(textContent);
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Message message = factory.createMessage();
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message.setMetaData(metaData);
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message.getContent().add(content);
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return message;
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}
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} |