cleaned up RabbitMQ stuff
parent
73d772a4b4
commit
d62ea1490d
@ -1,76 +0,0 @@
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package eu.dnetlib.message;
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import java.io.IOException;
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import java.util.Map;
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import com.fasterxml.jackson.core.JsonProcessingException;
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import com.fasterxml.jackson.databind.ObjectMapper;
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public class Message {
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private String workflowId;
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private String jobName;
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private MessageType type;
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private Map<String, String> body;
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public static Message fromJson(final String json) throws IOException {
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final ObjectMapper jsonMapper = new ObjectMapper();
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return jsonMapper.readValue(json, Message.class);
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}
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public Message() {
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}
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public Message(String workflowId, String jobName, MessageType type, Map<String, String> body) {
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this.workflowId = workflowId;
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this.jobName = jobName;
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this.type = type;
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this.body = body;
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}
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public String getWorkflowId() {
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return workflowId;
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}
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public void setWorkflowId(String workflowId) {
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this.workflowId = workflowId;
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}
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public String getJobName() {
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return jobName;
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}
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public void setJobName(String jobName) {
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this.jobName = jobName;
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}
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public MessageType getType() {
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return type;
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}
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public void setType(MessageType type) {
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this.type = type;
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}
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public Map<String, String> getBody() {
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return body;
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}
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public void setBody(Map<String, String> body) {
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this.body = body;
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}
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@Override
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public String toString() {
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final ObjectMapper jsonMapper = new ObjectMapper();
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try {
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return jsonMapper.writeValueAsString(this);
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} catch (JsonProcessingException e) {
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return null;
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}
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}
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}
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@ -1,47 +0,0 @@
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package eu.dnetlib.message;
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import java.io.IOException;
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import java.nio.charset.StandardCharsets;
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import java.util.concurrent.LinkedBlockingQueue;
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import com.rabbitmq.client.AMQP;
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import com.rabbitmq.client.Channel;
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import com.rabbitmq.client.DefaultConsumer;
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import com.rabbitmq.client.Envelope;
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public class MessageConsumer extends DefaultConsumer {
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final LinkedBlockingQueue<Message> queueMessages;
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/**
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* Constructs a new instance and records its association to the passed-in channel.
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*
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* @param channel the channel to which this consumer is attached
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* @param queueMessages
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*/
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public MessageConsumer(Channel channel, LinkedBlockingQueue<Message> queueMessages) {
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super(channel);
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this.queueMessages = queueMessages;
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}
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@Override
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public void handleDelivery(
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String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body)
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throws IOException {
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final String json = new String(body, StandardCharsets.UTF_8);
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Message message = Message.fromJson(json);
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try {
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this.queueMessages.put(message);
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System.out.println("Receiving Message " + message);
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} catch (InterruptedException e) {
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if (message.getType() == MessageType.REPORT)
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throw new RuntimeException("Error on sending message");
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else {
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// TODO LOGGING EXCEPTION
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}
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} finally {
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getChannel().basicAck(envelope.getDeliveryTag(), false);
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}
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}
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}
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@ -1,136 +0,0 @@
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package eu.dnetlib.message;
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import java.io.IOException;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.concurrent.LinkedBlockingQueue;
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import java.util.concurrent.TimeoutException;
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import com.rabbitmq.client.Channel;
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import com.rabbitmq.client.Connection;
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import com.rabbitmq.client.ConnectionFactory;
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public class MessageManager {
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private final String messageHost;
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private final String username;
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private final String password;
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private Connection connection;
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private final Map<String, Channel> channels = new HashMap<>();
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private boolean durable;
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private boolean autodelete;
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private final LinkedBlockingQueue<Message> queueMessages;
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public MessageManager(
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String messageHost,
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String username,
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String password,
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final LinkedBlockingQueue<Message> queueMessages) {
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this.queueMessages = queueMessages;
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this.messageHost = messageHost;
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this.username = username;
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this.password = password;
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}
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public MessageManager(
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String messageHost,
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String username,
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String password,
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boolean durable,
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boolean autodelete,
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final LinkedBlockingQueue<Message> queueMessages) {
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this.queueMessages = queueMessages;
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this.messageHost = messageHost;
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this.username = username;
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this.password = password;
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this.durable = durable;
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this.autodelete = autodelete;
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}
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private Connection createConnection() throws IOException, TimeoutException {
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ConnectionFactory factory = new ConnectionFactory();
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factory.setHost(this.messageHost);
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factory.setUsername(this.username);
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factory.setPassword(this.password);
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return factory.newConnection();
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}
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private Channel createChannel(
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final Connection connection,
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final String queueName,
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final boolean durable,
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final boolean autodelete)
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throws Exception {
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Map<String, Object> args = new HashMap<>();
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args.put("x-message-ttl", 10000);
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Channel channel = connection.createChannel();
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channel.queueDeclare(queueName, durable, false, this.autodelete, args);
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return channel;
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}
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private Channel getOrCreateChannel(final String queueName, boolean durable, boolean autodelete)
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throws Exception {
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if (channels.containsKey(queueName)) {
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return channels.get(queueName);
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}
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if (this.connection == null) {
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this.connection = createConnection();
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}
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channels.put(queueName, createChannel(this.connection, queueName, durable, autodelete));
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return channels.get(queueName);
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}
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public void close() throws IOException {
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channels
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.values()
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.forEach(
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ch -> {
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try {
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ch.close();
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} catch (Exception e) {
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// TODO LOG
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}
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});
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this.connection.close();
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}
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public boolean sendMessage(final Message message, String queueName) throws Exception {
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try {
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Channel channel = getOrCreateChannel(queueName, this.durable, this.autodelete);
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channel.basicPublish("", queueName, null, message.toString().getBytes());
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return true;
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} catch (Throwable e) {
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throw new RuntimeException(e);
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}
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}
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public boolean sendMessage(
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final Message message, String queueName, boolean durable_var, boolean autodelete_var)
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throws Exception {
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try {
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Channel channel = getOrCreateChannel(queueName, durable_var, autodelete_var);
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channel.basicPublish("", queueName, null, message.toString().getBytes());
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return true;
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} catch (Throwable e) {
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throw new RuntimeException(e);
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}
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}
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public void startConsumingMessage(
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final String queueName, final boolean durable, final boolean autodelete) throws Exception {
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Channel channel = createChannel(createConnection(), queueName, durable, autodelete);
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channel.basicConsume(queueName, false, new MessageConsumer(channel, queueMessages));
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}
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}
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@ -1,6 +0,0 @@
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package eu.dnetlib.message;
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public enum MessageType {
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ONGOING, REPORT
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}
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@ -1,51 +0,0 @@
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package eu.dnetlib.message;
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import static org.junit.jupiter.api.Assertions.*;
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import java.io.IOException;
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import java.util.HashMap;
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import java.util.Map;
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import org.junit.jupiter.api.Test;
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public class MessageTest {
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@Test
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public void fromJsonTest() throws IOException {
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Message m = new Message();
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m.setWorkflowId("wId");
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m.setType(MessageType.ONGOING);
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m.setJobName("Collection");
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Map<String, String> body = new HashMap<>();
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body.put("parsedItem", "300");
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body.put("ExecutionTime", "30s");
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m.setBody(body);
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System.out.println("m = " + m);
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Message m1 = Message.fromJson(m.toString());
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assertEquals(m1.getWorkflowId(), m.getWorkflowId());
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assertEquals(m1.getType(), m.getType());
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assertEquals(m1.getJobName(), m.getJobName());
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assertNotNull(m1.getBody());
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m1.getBody().keySet().forEach(it -> assertEquals(m1.getBody().get(it), m.getBody().get(it)));
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assertEquals(m1.getJobName(), m.getJobName());
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}
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@Test
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public void toStringTest() {
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final String expectedJson = "{\"workflowId\":\"wId\",\"jobName\":\"Collection\",\"type\":\"ONGOING\",\"body\":{\"ExecutionTime\":\"30s\",\"parsedItem\":\"300\"}}";
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Message m = new Message();
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m.setWorkflowId("wId");
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m.setType(MessageType.ONGOING);
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m.setJobName("Collection");
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Map<String, String> body = new HashMap<>();
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body.put("parsedItem", "300");
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body.put("ExecutionTime", "30s");
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m.setBody(body);
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assertEquals(expectedJson, m.toString());
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}
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}
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