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17 package org.apache.logging.log4j.flume.appender;
18
19 import com.google.common.base.Preconditions;
20 import org.apache.flume.lifecycle.LifecycleAware;
21 import org.apache.flume.lifecycle.LifecycleState;
22 import org.apache.flume.node.NodeConfiguration;
23 import org.apache.flume.node.NodeManager;
24 import org.apache.flume.node.nodemanager.NodeConfigurationAware;
25 import org.slf4j.Logger;
26 import org.slf4j.LoggerFactory;
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30
31 public class FlumeNode implements LifecycleAware {
32
33 private static final Logger LOGGER = LoggerFactory.getLogger(FlumeNode.class);
34
35 private LifecycleState lifecycleState;
36 private final NodeManager nodeManager;
37 private final NodeConfigurationAware configurationAware;
38 private final NodeConfiguration conf;
39
40 public FlumeNode(final NodeConfigurationAware configurationAware, final NodeManager manager,
41 final NodeConfiguration conf) {
42 this.nodeManager = manager;
43 this.conf = conf;
44 this.configurationAware = configurationAware;
45 }
46
47 @Override
48 public void start() {
49
50 Preconditions.checkState(nodeManager != null, "Node manager can not be null");
51
52 LOGGER.info("Flume node starting");
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54 configurationAware.startAllComponents(conf);
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56 lifecycleState = LifecycleState.START;
57 }
58
59 @Override
60 public void stop() {
61
62 LOGGER.info("Flume node stopping");
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64 configurationAware.stopAllComponents();
65
66 lifecycleState = LifecycleState.STOP;
67 }
68
69 public NodeManager getNodeManager() {
70 return nodeManager;
71 }
72
73 public NodeConfiguration getConfiguration() {
74 return conf;
75 }
76
77 @Override
78 public LifecycleState getLifecycleState() {
79 return lifecycleState;
80 }
81 }