forked from D-Net/dnet-hadoop
83 lines
3.0 KiB
Java
83 lines
3.0 KiB
Java
package eu.dnetlib.message;
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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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import sun.rmi.runtime.Log;
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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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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 boolean durable;
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private boolean autodelete;
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final private LinkedBlockingQueue<Message> queueMessages;
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public MessageManager(String messageHost, String username, String password, 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(String messageHost, String username, String password, boolean durable, boolean autodelete, 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 Channel createChannel(final String queueName, final boolean durable, final boolean autodelete ) throws Exception {
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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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Connection connection = factory.newConnection();
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Map<String, Object> args = new HashMap<String, Object>();
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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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public boolean sendMessage(final Message message, String queueName) throws Exception {
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try (Channel channel = createChannel(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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e.printStackTrace();
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return false;
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}
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}
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public boolean sendMessage(final Message message, String queueName, boolean durable_var, boolean autodelete_var) throws Exception {
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try (Channel channel = createChannel(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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e.printStackTrace();
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return false;
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}
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}
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public void startConsumingMessage(final String queueName, final boolean durable, final boolean autodelete) throws Exception{
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Channel channel = createChannel(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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