Febbweiss/logstash-forwarder-java
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Create new ProtocolAdapter if connection is lost.

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didfet
2015-03-19 13:19:50 +01:00
parent c199d00d2d
commit 20366c982e
8 changed files with 65 additions and 35 deletions
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2
pom.xml
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@@ -3,7 +3,7 @@
<modelVersion>4.0.0</modelVersion> <modelVersion>4.0.0</modelVersion>
<groupId>logstash-forwarder-java</groupId> <groupId>logstash-forwarder-java</groupId>
<artifactId>logstash-forwarder-java</artifactId> <artifactId>logstash-forwarder-java</artifactId>
<version>0.1.0</version> <version>0.1.1-SNAPSHOT</version>
<name>logstash-forwarder-java</name> <name>logstash-forwarder-java</name>
<description>Java version of logstash forwarder</description> <description>Java version of logstash forwarder</description>
<url>https://github.com/didfet/logstash-forwarder-java</url> <url>https://github.com/didfet/logstash-forwarder-java</url>

4
src/main/java/info/fetter/logstashforwarder/FileReader.java
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@@ -1,5 +1,7 @@
package info.fetter.logstashforwarder; package info.fetter.logstashforwarder;
import info.fetter.logstashforwarder.util.AdapterException;
import java.io.File; import java.io.File;
import java.io.IOException; import java.io.IOException;
import java.io.RandomAccessFile; import java.io.RandomAccessFile;
@@ -50,7 +52,7 @@ public class FileReader {
eventList = new ArrayList<Event>(spoolSize); eventList = new ArrayList<Event>(spoolSize);
} }
public int readFiles(Collection<FileState> fileList) throws IOException { public int readFiles(Collection<FileState> fileList) throws IOException, AdapterException {
int eventCount = 0; int eventCount = 0;
if(logger.isTraceEnabled()) { if(logger.isTraceEnabled()) {
logger.trace("Reading " + fileList.size() + " file(s)"); logger.trace("Reading " + fileList.size() + " file(s)");

3
src/main/java/info/fetter/logstashforwarder/FileWatcher.java
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@@ -17,6 +17,7 @@ package info.fetter.logstashforwarder;
* *
*/ */
import info.fetter.logstashforwarder.util.AdapterException;
import info.fetter.logstashforwarder.util.LastModifiedFileFilter; import info.fetter.logstashforwarder.util.LastModifiedFileFilter;
import java.io.File; import java.io.File;
@@ -75,7 +76,7 @@ public class FileWatcher {
printWatchMap(); printWatchMap();
} }
public int readFiles(FileReader reader) throws IOException { public int readFiles(FileReader reader) throws IOException, AdapterException {
logger.debug("Reading files"); logger.debug("Reading files");
logger.trace("=============="); logger.trace("==============");
int numberOfLinesRead = reader.readFiles(watchMap.values()); int numberOfLinesRead = reader.readFiles(watchMap.values());

35
src/main/java/info/fetter/logstashforwarder/Forwarder.java
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@@ -7,6 +7,7 @@ import java.io.IOException;
import info.fetter.logstashforwarder.config.ConfigurationManager; import info.fetter.logstashforwarder.config.ConfigurationManager;
import info.fetter.logstashforwarder.config.FilesSection; import info.fetter.logstashforwarder.config.FilesSection;
import info.fetter.logstashforwarder.protocol.LumberjackClient; import info.fetter.logstashforwarder.protocol.LumberjackClient;
import info.fetter.logstashforwarder.util.AdapterException;
import org.apache.commons.cli.CommandLine; import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser; import org.apache.commons.cli.CommandLineParser;
@@ -18,6 +19,7 @@ import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException; import org.apache.commons.cli.ParseException;
import org.apache.log4j.BasicConfigurator; import org.apache.log4j.BasicConfigurator;
import org.apache.log4j.Level; import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import org.apache.log4j.spi.RootLogger; import org.apache.log4j.spi.RootLogger;
/* /*
@@ -38,6 +40,7 @@ import org.apache.log4j.spi.RootLogger;
*/ */
public class Forwarder { public class Forwarder {
private static Logger logger = Logger.getLogger(Forwarder.class);
private static int spoolSize = 1024; private static int spoolSize = 1024;
private static int idleTimeout = 5000; private static int idleTimeout = 5000;
private static String config; private static String config;
@@ -52,9 +55,9 @@ public class Forwarder {
parseOptions(args); parseOptions(args);
BasicConfigurator.configure(); BasicConfigurator.configure();
RootLogger.getRootLogger().setLevel(logLevel); RootLogger.getRootLogger().setLevel(logLevel);
// Logger.getLogger(FileReader.class).addAppender((Appender)RootLogger.getRootLogger().getAllAppenders().nextElement()); // Logger.getLogger(FileReader.class).addAppender((Appender)RootLogger.getRootLogger().getAllAppenders().nextElement());
// Logger.getLogger(FileReader.class).setLevel(TRACE); // Logger.getLogger(FileReader.class).setLevel(TRACE);
// Logger.getLogger(FileReader.class).setAdditivity(false); // Logger.getLogger(FileReader.class).setAdditivity(false);
watcher = new FileWatcher(); watcher = new FileWatcher();
configManager = new ConfigurationManager(config); configManager = new ConfigurationManager(config);
configManager.readConfiguration(); configManager.readConfiguration();
@@ -64,9 +67,7 @@ public class Forwarder {
} }
} }
reader = new FileReader(spoolSize); reader = new FileReader(spoolSize);
String[] serverAndPort = configManager.getConfig().getNetwork().getServers().get(0).split(":"); connectToServer();
adapter = new LumberjackClient(configManager.getConfig().getNetwork().getSslCA(),serverAndPort[0],Integer.parseInt(serverAndPort[1]));
reader.setAdapter(adapter);
infiniteLoop(); infiniteLoop();
} catch(Exception e) { } catch(Exception e) {
e.printStackTrace(); e.printStackTrace();
@@ -76,12 +77,28 @@ public class Forwarder {
private static void infiniteLoop() throws IOException, InterruptedException { private static void infiniteLoop() throws IOException, InterruptedException {
while(true) { while(true) {
watcher.checkFiles(); try {
while(watcher.readFiles(reader) == spoolSize); watcher.checkFiles();
Thread.sleep(idleTimeout); while(watcher.readFiles(reader) == spoolSize);
Thread.sleep(idleTimeout);
} catch(AdapterException e) {
try {
logger.error("Lost server connection");
Thread.sleep(configManager.getConfig().getNetwork().getTimeout() * 1000);
connectToServer();
} catch(Exception ex) {
logger.error("Failed to reconnect to server : " + ex.getMessage());
}
}
} }
} }
private static void connectToServer() throws NumberFormatException, IOException {
String[] serverAndPort = configManager.getConfig().getNetwork().getServers().get(0).split(":");
adapter = new LumberjackClient(configManager.getConfig().getNetwork().getSslCA(),serverAndPort[0],Integer.parseInt(serverAndPort[1]));
reader.setAdapter(adapter);
}
@SuppressWarnings("static-access") @SuppressWarnings("static-access")
static void parseOptions(String[] args) { static void parseOptions(String[] args) {
Options options = new Options(); Options options = new Options();

7
src/main/java/info/fetter/logstashforwarder/ProtocolAdapter.java
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@@ -17,10 +17,11 @@ package info.fetter.logstashforwarder;
* *
*/ */
import java.io.IOException; import info.fetter.logstashforwarder.util.AdapterException;
import java.util.List; import java.util.List;
public interface ProtocolAdapter { public interface ProtocolAdapter {
public int sendEvents(List<Event> eventList) throws IOException; public int sendEvents(List<Event> eventList) throws AdapterException;
public void close() throws IOException; public void close() throws AdapterException;
} }

35
src/main/java/info/fetter/logstashforwarder/protocol/LumberjackClient.java
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@@ -19,6 +19,7 @@ package info.fetter.logstashforwarder.protocol;
import info.fetter.logstashforwarder.Event; import info.fetter.logstashforwarder.Event;
import info.fetter.logstashforwarder.ProtocolAdapter; import info.fetter.logstashforwarder.ProtocolAdapter;
import info.fetter.logstashforwarder.util.AdapterException;
import java.io.BufferedOutputStream; import java.io.BufferedOutputStream;
import java.io.ByteArrayOutputStream; import java.io.ByteArrayOutputStream;
@@ -177,22 +178,30 @@ public class LumberjackClient implements ProtocolAdapter {
return sequenceNumber; return sequenceNumber;
} }
public int sendEvents(List<Event> eventList) throws IOException { public int sendEvents(List<Event> eventList) throws AdapterException {
int beginSequence = sequence; try {
int numberOfEvents = eventList.size(); int beginSequence = sequence;
logger.info("Sending " + numberOfEvents + " events"); int numberOfEvents = eventList.size();
sendWindowSizeFrame(numberOfEvents); logger.info("Sending " + numberOfEvents + " events");
List<Map<String,byte[]>> keyValuesList = new ArrayList<Map<String,byte[]>>(numberOfEvents); sendWindowSizeFrame(numberOfEvents);
for(Event event : eventList) { List<Map<String,byte[]>> keyValuesList = new ArrayList<Map<String,byte[]>>(numberOfEvents);
keyValuesList.add(event.getKeyValues()); for(Event event : eventList) {
keyValuesList.add(event.getKeyValues());
}
sendCompressedFrame(keyValuesList);
while(readAckFrame() < (sequence - 1) ) {}
return sequence - beginSequence;
} catch(Exception e) {
throw new AdapterException(e);
} }
sendCompressedFrame(keyValuesList);
while(readAckFrame() < (sequence - 1) ) {}
return sequence - beginSequence;
} }
public void close() throws IOException { public void close() throws AdapterException {
socket.close(); try {
socket.close();
} catch(Exception e) {
throw new AdapterException(e);
}
logger.info("Connection to " + server + ":" + port + " closed"); logger.info("Connection to " + server + ":" + port + " closed");
} }
} }

3
src/test/java/info/fetter/logstashforwarder/FileReaderTest.java
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@@ -18,6 +18,7 @@ package info.fetter.logstashforwarder;
*/ */
import static org.apache.log4j.Level.*; import static org.apache.log4j.Level.*;
import info.fetter.logstashforwarder.util.AdapterException;
import java.io.File; import java.io.File;
import java.io.IOException; import java.io.IOException;
@@ -47,7 +48,7 @@ public class FileReaderTest {
} }
@Test @Test
public void testFileReader1() throws IOException, InterruptedException { public void testFileReader1() throws IOException, InterruptedException, AdapterException {
FileReader reader = new FileReader(2); FileReader reader = new FileReader(2);
reader.setAdapter(new MockProtocolAdapter()); reader.setAdapter(new MockProtocolAdapter());
List<FileState> fileList = new ArrayList<FileState>(1); List<FileState> fileList = new ArrayList<FileState>(1);

5
src/test/java/info/fetter/logstashforwarder/MockProtocolAdapter.java
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@@ -17,7 +17,6 @@ package info.fetter.logstashforwarder;
* *
*/ */
import java.io.IOException;
import java.util.List; import java.util.List;
import org.apache.log4j.Logger; import org.apache.log4j.Logger;
@@ -25,7 +24,7 @@ import org.apache.log4j.Logger;
public class MockProtocolAdapter implements ProtocolAdapter { public class MockProtocolAdapter implements ProtocolAdapter {
private static Logger logger = Logger.getLogger(MockProtocolAdapter.class); private static Logger logger = Logger.getLogger(MockProtocolAdapter.class);
public int sendEvents(List<Event> eventList) throws IOException { public int sendEvents(List<Event> eventList) {
for(Event event : eventList) { for(Event event : eventList) {
logger.trace("Event :"); logger.trace("Event :");
for(String key : event.getKeyValues().keySet()) { for(String key : event.getKeyValues().keySet()) {
@@ -35,7 +34,7 @@ public class MockProtocolAdapter implements ProtocolAdapter {
return eventList.size(); return eventList.size();
} }
public void close() throws IOException { public void close() {
// not implemented // not implemented
} }