More work on packages, plugins and tests.

client/build.gradle

@@ -1,15 +1,14 @@
 plugins {
     id 'application'
 
-    id "com.github.johnrengelman.shadow" version "6.1.0"
+    id "com.github.johnrengelman.shadow" version "7.0.0"
     id "net.nemerosa.versioning" version "2.14.0"
-    id "nebula.ospackage" version "8.4.1"
+    id "nebula.ospackage" version "8.5.6"
 }
 
 dependencies {
     testImplementation project(':shared')
     implementation project(':shared')
-    implementation project(':plugins')
 
     annotationProcessor(group: 'org.pf4j', name: 'pf4j', version: "${pf4jVersion}")
     implementation group: 'org.pf4j', name: 'pf4j', version: "${pf4jVersion}"
@@ -48,7 +47,7 @@ ospackage {
     user = 'root'
     packager = "Mark Nellemann <mark.nellemann@gmail.com>"
 
-    into '/opt/sysmon-client'
+    into '/opt/sysmon/client'
 
     from(shadowJar.outputs.files) {
         into 'lib'
@@ -90,3 +89,10 @@ jar {
         )
     }
 }
+
+shadowJar {
+    archiveBaseName.set('sysmon-client')
+    archiveClassifier.set('')
+    archiveVersion.set('')
+    mergeServiceFiles() // Tell plugin to merge duplicate service files
+}

client/src/main/java/org/sysmon/client/Application.java

@@ -8,10 +8,12 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import picocli.CommandLine;
 
+import java.io.File;
 import java.io.IOException;
 import java.net.InetAddress;
 import java.net.URL;
 import java.net.UnknownHostException;
+import java.util.Properties;
 import java.util.concurrent.Callable;
 
 @CommandLine.Command(name = "sysmon-client", mixinStandardHelpOptions = true)
@@ -22,9 +24,11 @@ public class Application implements Callable<Integer> {
     @CommandLine.Option(names = { "-s", "--server-url" }, description = "Server URL (default: ${DEFAULT-VALUE}).", defaultValue = "http://127.0.0.1:9925/metrics", paramLabel = "<url>")
     private URL serverUrl;
 
-    @CommandLine.Option(names = { "-n", "--hostname" }, description = "Client hostname.", paramLabel = "<name>")
+    @CommandLine.Option(names = { "-n", "--hostname" }, description = "Client hostname (default: <hostname>).", paramLabel = "<name>")
     private String hostname;
 
+    @CommandLine.Option(names = { "-p", "--plugins" }, description = "Plugin jar path (default: ${DEFAULT-VALUE}).", paramLabel = "<path>", defaultValue = "/opt/sysmon/plugins")
+    private File plugins;
 
     public static void main(String... args) {
         int exitCode = new CommandLine(new Application()).execute(args);

client/src/main/java/org/sysmon/client/ClientRouteBuilder.java

@@ -11,7 +11,11 @@ import org.slf4j.LoggerFactory;
 import org.sysmon.shared.MetricExtension;
 import org.sysmon.shared.MetricResult;
 
+import java.io.File;
+import java.nio.file.Path;
+import java.util.ArrayList;
 import java.util.List;
+import java.util.Properties;
 
 public class ClientRouteBuilder extends RouteBuilder {
 
@@ -22,17 +26,29 @@ public class ClientRouteBuilder extends RouteBuilder {
 
         Registry registry = getContext().getRegistry();
 
-        PluginManager pluginManager = new JarPluginManager();
+        Path[] pluginpaths = { new File("/opt/sysmon/plugins").toPath() };
+
+        PluginManager pluginManager = new JarPluginManager(pluginpaths);
         pluginManager.loadPlugins();
         pluginManager.startPlugins();
 
+        List<String> providers = new ArrayList<>();
         List<MetricExtension> metricExtensions = pluginManager.getExtensions(MetricExtension.class);
         for (MetricExtension ext : metricExtensions) {
+
             if(ext.isSupported()) {
+
+                String provides = ext.getProvides();
+                if(providers.contains(provides)) {
+                    log.warn("Skipping extension (already provided): " + ext.getName());
+                    continue;
+                }
+
                 log.info(">>> Enabling extension: " + ext.getDescription());
+                providers.add(provides);
 
                 // Setup Camel route for this extension
-                from("timer:collect?period=30000")
+                from("timer:collect?fixedRate=true&period=30s")
                         .bean(ext, "getMetrics")
                         //.doTry()
                         .process(new MetricEnrichProcessor(registry))

gradle.properties

@@ -1,4 +1,7 @@
+group=org.sysmon
+version=0.0.1-SNAPSHOT
+
 pf4jVersion=3.6.0
 slf4jVersion=1.7.30
-camelVersion=3.7.3
+camelVersion=3.7.4
 picocliVersion=4.6.1

plugins/build.gradle

@@ -1,3 +1,7 @@
+plugins {
+    id "nebula.ospackage" version "8.5.6"
+}
+
 subprojects {
     apply plugin: 'java'
     apply plugin: 'groovy'
@@ -50,3 +54,28 @@ task customCleanUp(type:Delete) {
 }
 
 tasks.clean.dependsOn(tasks.customCleanUp)
+
+
+apply plugin: 'nebula.ospackage'
+ospackage {
+    packageName = 'sysmon-plugins'
+    release = '1'
+    user = 'root'
+    packager = "Mark Nellemann <mark.nellemann@gmail.com>"
+
+    into '/opt/sysmon/plugins'
+
+    from('output/') {
+        into ''
+    }
+
+}
+
+buildRpm {
+    dependsOn assemble
+    os = "LINUX"
+}
+
+buildDeb {
+    dependsOn assemble
+}

plugins/sysmon-aix/src/main/java/org/sysmon/plugins/sysmon_aix/AixDiskExtension.java

@@ -17,6 +17,11 @@ public class AixDiskExtension implements MetricExtension {
         return "aix-disk";
     }
 
+    @Override
+    public String getProvides() {
+        return "disk";
+    }
+
     @Override
     public String getDescription() {
         return "AIX Disk Metrics (TODO)";

plugins/sysmon-aix/src/main/java/org/sysmon/plugins/sysmon_aix/AixProcessorExtension.java

@@ -8,7 +8,7 @@ import org.sysmon.shared.MetricExtension;
 import org.sysmon.shared.MetricResult;
 import org.sysmon.shared.PluginHelper;
 
-import java.util.HashMap;
+import java.io.File;
 import java.util.List;
 import java.util.Map;
 
@@ -19,7 +19,19 @@ public class AixProcessorExtension implements MetricExtension {
 
     @Override
     public boolean isSupported() {
-        return System.getProperty("os.name").toLowerCase().contains("aix");
+
+        String osArch = System.getProperty("os.arch").toLowerCase();
+        if(!osArch.startsWith("ppc64")) {
+            log.warn("Wrong os arch: " + osArch);
+            return false;
+        }
+
+        if(!PluginHelper.canExecute("lparstat")) {
+            log.warn("No lparstat command found.");
+            return false;
+        }
+
+        return true;
     }
 
     @Override
@@ -27,6 +39,11 @@ public class AixProcessorExtension implements MetricExtension {
         return "aix-processor";
     }
 
+    @Override
+    public String getProvides() {
+        return "processor";
+    }
+
     @Override
     public String getDescription() {
         return "AIX Processor Metrics";
@@ -35,7 +52,7 @@ public class AixProcessorExtension implements MetricExtension {
     @Override
     public MetricResult getMetrics() {
 
-        List<String> vmstat = PluginHelper.executeCommand("/usr/bin/lparstat 1 1");
+        List<String> vmstat = PluginHelper.executeCommand("lparstat 1 1");
         AixProcessorStat processorStat = processCommandOutput(vmstat);
 
         Map<String, String> tagsMap = processorStat.getTags();

plugins/sysmon-aix/src/main/java/org/sysmon/plugins/sysmon_aix/AixProcessorStat.java

@@ -13,7 +13,12 @@ public class AixProcessorStat {
 
     private static final Logger log = LoggerFactory.getLogger(AixProcessorStat.class);
 
-    private final Pattern pattern = Pattern.compile("^System configuration: type=(\\S+) mode=(\\S+) smt=(\\d+) lcpu=(\\d+) mem=(\\d+)MB psize=(\\d+) ent=(\\d+\\.?\\d*)");
+    // System configuration: type=Shared mode=Uncapped smt=8 lcpu=8 mem=4096MB psize=19 ent=0.50
+    private final Pattern patternAix = Pattern.compile("^System configuration: type=(\\S+) mode=(\\S+) smt=(\\d+) lcpu=(\\d+) mem=(\\d+)MB psize=(\\d+) ent=(\\d+\\.?\\d*)");
+
+    // type=Shared mode=Uncapped smt=8 lcpu=4 mem=4101120 kB cpus=24 ent=4.00
+    private final Pattern patternLinux = Pattern.compile("^type=(\\S+) mode=(\\S+) smt=(\\d+) lcpu=(\\d+) mem=(\\d+) kB cpus=(\\d+) ent=(\\d+\\.?\\d*)");
+
 
     private String type;
     private String mode;
@@ -31,34 +36,44 @@ public class AixProcessorStat {
     private final Float lbusy;  // Indicates the percentage of logical processor(s) utilization that occurred while executing at the user and system level.
 
 
-    /*
+    AixProcessorStat(List<String> lines) {
 
-    System configuration: type=Shared mode=Uncapped smt=8 lcpu=8 mem=4096MB psize=19 ent=0.50
+        Pattern p;
+        for (String line : lines) {
 
-
+            if (line.startsWith("System configuration:")) {
-    %user  %sys  %wait  %idle physc %entc  lbusy  vcsw phint  %nsp  %utcyc
+                p = patternAix;
-    ----- ----- ------ ------ ----- ----- ------ ----- ----- -----  ------
+                Matcher matcher = patternAix.matcher(line);
-      0.1   0.0    0.0   99.9  0.00   0.2    1.9 37441986   316   149  33.06
-    */
-    AixProcessorStat(List<String> vmstatLines) {
-
-        for(String line : vmstatLines) {
-            Matcher matcher = pattern.matcher(line);
                 if (matcher.find() && matcher.groupCount() == 7) {
-                type=matcher.group(1);
+                    type = matcher.group(1);
-                mode=matcher.group(2);
+                    mode = matcher.group(2);
                     smt = Integer.parseInt(matcher.group(3));
                     lcpu = Integer.parseInt(matcher.group(4));
                     psize = Integer.parseInt(matcher.group(5));
                     ent = Float.parseFloat(matcher.group(7));
-                break;
                 }
             }
 
-        String vmstat = vmstatLines.get(vmstatLines.size() -1);
+            if (line.startsWith("type=")) {
-        String[] splitStr = vmstat.trim().split("\\s+");
+                //type=Shared mode=Uncapped smt=8 lcpu=4 mem=4101120 kB cpus=24 ent=4.00
-        if(splitStr.length != 11) {
+
-            throw new UnsupportedOperationException("vmstat string error: " + splitStr.length);
+                Matcher matcher = patternLinux.matcher(line);
+                if (matcher.find() && matcher.groupCount() == 7) {
+                    type = matcher.group(1);
+                    mode = matcher.group(2);
+                    smt = Integer.parseInt(matcher.group(3));
+                    lcpu = Integer.parseInt(matcher.group(4));
+                    psize = Integer.parseInt(matcher.group(6));
+                    ent = Float.parseFloat(matcher.group(7));
+                }
+            }
+
+        }
+
+        String lparstat = lines.get(lines.size() -1);
+        String[] splitStr = lparstat.trim().split("\\s+");
+        if(splitStr.length < 9) {
+            throw new UnsupportedOperationException("lparstat string error: " + lparstat);
         }
 
         this.user = Float.parseFloat(splitStr[0]);

plugins/sysmon-aix/src/test/groovy/AixProcessorTest.groovy

@@ -4,10 +4,10 @@ import spock.lang.Specification
 
 class AixProcessorTest extends Specification {
 
-    void "test lparstat output processing"() {
+    void "test AIX lparstat output processing"() {
 
         setup:
-        def testFile = new File(getClass().getResource('/lparstat.txt').toURI())
+        def testFile = new File(getClass().getResource('/lparstat-aix.txt').toURI())
         List<String> lines = testFile.readLines("UTF-8")
 
         when:
@@ -24,4 +24,25 @@ class AixProcessorTest extends Specification {
     }
 
 
+    void "test Linux lparstat output processing"() {
+
+        setup:
+        def testFile = new File(getClass().getResource('/lparstat-linux.txt').toURI())
+        List<String> lines = testFile.readLines("UTF-8")
+
+        when:
+        AixProcessorExtension extension = new AixProcessorExtension()
+        AixProcessorStat stats = extension.processCommandOutput(lines)
+
+        then:
+        stats.getUser() == 0.03f
+        stats.getSys() == 0.0f
+        stats.getWait() == 0.0f
+        stats.getIdle() == 99.97f
+        stats.getFields().get("ent") == 4.00f
+        stats.getTags().get("mode") == "Uncapped"
+        stats.getTags().get("type") == "Shared"
+
+    }
+
 }

plugins/sysmon-aix/src/test/resources/lparstat-linux.txt

@@ -0,0 +1,7 @@
+
+System Configuration
+type=Shared mode=Uncapped smt=8 lcpu=4 mem=4101120 kB cpus=24 ent=4.00
+
+%user  %sys %wait    %idle    physc %entc lbusy  vcsw phint
+----- ----- -----    -----    ----- ----- ----- ----- -----
+ 0.03  0.00  0.00    99.97 0.000000 0.000000  0.03 445478301 18863

plugins/sysmon-linux/src/main/java/org/sysmon/plugins/sysmon_linux/LinuxDiskExtension.java

@@ -27,7 +27,8 @@ public class LinuxDiskExtension implements MetricExtension {
 
     @Override
     public boolean isSupported() {
-        return System.getProperty("os.name").toLowerCase().contains("linux");
+        //return System.getProperty("os.name").toLowerCase().contains("linux");
+        return false; // TODO: Not ready yet.
     }
 
     @Override
@@ -35,6 +36,11 @@ public class LinuxDiskExtension implements MetricExtension {
         return "linux-disk";
     }
 
+    @Override
+    public String getProvides() {
+        return "disk";
+    }
+
     @Override
     public String getDescription() {
         return "Linux Disk Metrics";

plugins/sysmon-linux/src/main/java/org/sysmon/plugins/sysmon_linux/LinuxMemoryExtension.java

@@ -6,6 +6,8 @@ import org.sysmon.shared.MetricExtension;
 import org.sysmon.shared.MetricResult;
 
 import java.io.IOException;
+import java.math.BigDecimal;
+import java.math.RoundingMode;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.Paths;
@@ -31,6 +33,11 @@ public class LinuxMemoryExtension implements MetricExtension {
         return "linux-memory";
     }
 
+    @Override
+    public String getProvides() {
+        return "memory";
+    }
+
     @Override
     public String getDescription() {
         return "Linux Memory Metrics";
@@ -42,7 +49,7 @@ public class LinuxMemoryExtension implements MetricExtension {
 
         MetricResult result = new MetricResult("memory");
         try {
-            result.setMeasurement(readProcFile());
+            result.setMeasurement(processProcFile(readProcFile()));
         } catch (IOException e) {
             e.printStackTrace();
         }
@@ -51,27 +58,51 @@ public class LinuxMemoryExtension implements MetricExtension {
     }
 
 
-    private Measurement readProcFile() throws IOException {
+    protected List<String> readProcFile() throws IOException {
+        List<String> allLines = Files.readAllLines(Paths.get("/proc/meminfo"), StandardCharsets.UTF_8);
+        return allLines;
+    }
+
+    protected Measurement processProcFile(List<String> lines) {
 
         Map<String, String> tagsMap = new HashMap<>();
         Map<String, Object> fieldsMap = new HashMap<>();
 
-        List<String> allLines = Files.readAllLines(Paths.get("/proc/meminfo"), StandardCharsets.UTF_8);
+        Long total = null;
-        for (String line : allLines) {
+        Long available = null;
+
+        for (String line : lines) {
 
             if (line.startsWith("Mem")) {
 
                 Matcher matcher = pattern.matcher(line);
                 if (matcher.find() && matcher.groupCount() == 2) {
+
                     String key = matcher.group(1).substring(3).toLowerCase(); // remove "Mem" and lowercase
-                    Object value = matcher.group(2);
+                    String value = matcher.group(2);
-                    fieldsMap.put(key, value);
+
+                    switch (key) {
+                        case "total":
+                            total = Long.parseLong(value);
+                            fieldsMap.put(key, total);
+                            break;
+                        case "available":
+                            available = Long.parseLong(value);
+                            fieldsMap.put(key, available);
+                            break;
+                    }
+
                 }
             }
 
+
+        }
+
+        if(total != null && available != null) {
+            BigDecimal usage = BigDecimal.valueOf(((float)(total - available) / total) * 100);
+            fieldsMap.put("usage", usage.setScale(2, RoundingMode.HALF_EVEN));
         }
 
         return new Measurement(tagsMap, fieldsMap);
     }
-
 }

plugins/sysmon-linux/src/main/java/org/sysmon/plugins/sysmon_linux/LinuxProcessorExtension.java

@@ -35,6 +35,11 @@ public class LinuxProcessorExtension implements MetricExtension {
         return "linux-processor";
     }
 
+    @Override
+    public String getProvides() {
+        return "processor";
+    }
+
     @Override
     public String getDescription() {
         return "Linux Processor Metrics";

plugins/sysmon-linux/src/test/groovy/LinuxMemoryTest.groovy

@@ -0,0 +1,23 @@
+import org.sysmon.plugins.sysmon_linux.LinuxMemoryExtension
+import org.sysmon.shared.Measurement
+import spock.lang.Specification
+
+class LinuxMemoryTest extends Specification {
+
+    void "test proc file processing"() {
+
+        setup:
+        def testFile = new File(getClass().getResource('/meminfo.txt').toURI())
+        List<String> lines = testFile.readLines("UTF-8")
+
+        when:
+        LinuxMemoryExtension extension = new LinuxMemoryExtension()
+        Measurement m = extension.processProcFile(lines);
+
+        then:
+        m.getFields().get("total") == 16069616
+        m.getFields().get("available") == 7968744
+        m.getFields().get("usage") == 50.41
+    }
+
+}

plugins/sysmon-linux/src/test/resources/meminfo.txt

@@ -0,0 +1,51 @@
+MemTotal:       16069616 kB
+MemFree:         1587092 kB
+MemAvailable:    7968744 kB
+Buffers:          463364 kB
+Cached:          6808540 kB
+SwapCached:         2156 kB
+Active:          9179808 kB
+Inactive:        4369880 kB
+Active(anon):    6366532 kB
+Inactive(anon):   761912 kB
+Active(file):    2813276 kB
+Inactive(file):  3607968 kB
+Unevictable:      270200 kB
+Mlocked:              48 kB
+SwapTotal:       3985404 kB
+SwapFree:        3974652 kB
+Dirty:              9708 kB
+Writeback:             0 kB
+AnonPages:       6545944 kB
+Mapped:          1948448 kB
+Shmem:            852772 kB
+KReclaimable:     302640 kB
+Slab:             502784 kB
+SReclaimable:     302640 kB
+SUnreclaim:       200144 kB
+KernelStack:       21376 kB
+PageTables:        52856 kB
+NFS_Unstable:          0 kB
+Bounce:                0 kB
+WritebackTmp:          0 kB
+CommitLimit:    12020212 kB
+Committed_AS:   14750600 kB
+VmallocTotal:   34359738367 kB
+VmallocUsed:       42828 kB
+VmallocChunk:          0 kB
+Percpu:             8320 kB
+HardwareCorrupted:     0 kB
+AnonHugePages:         0 kB
+ShmemHugePages:        0 kB
+ShmemPmdMapped:        0 kB
+FileHugePages:         0 kB
+FilePmdMapped:         0 kB
+HugePages_Total:       0
+HugePages_Free:        0
+HugePages_Rsvd:        0
+HugePages_Surp:        0
+Hugepagesize:       2048 kB
+Hugetlb:               0 kB
+DirectMap4k:      410796 kB
+DirectMap2M:    10795008 kB
+DirectMap1G:     6291456 kB

server/build.gradle

@@ -1,7 +1,7 @@
 plugins {
     id 'application'
 
-    id "com.github.johnrengelman.shadow" version "6.1.0"
+    id "com.github.johnrengelman.shadow" version "7.0.0"
     id "net.nemerosa.versioning" version "2.14.0"
     id "nebula.ospackage" version "8.5.6"
 }
@@ -39,7 +39,7 @@ ospackage {
     user = 'root'
     packager = "Mark Nellemann <mark.nellemann@gmail.com>"
 
-    into '/opt/sysmon-server'
+    into '/opt/sysmon/server'
 
     from(shadowJar.outputs.files) {
         into 'lib'
@@ -69,7 +69,8 @@ buildDeb {
     dependsOn startShadowScripts
 }
 
-task aixRpm(type: Rpm) {
+task buildRpmAix(type: Rpm) {
+    dependsOn startShadowScripts
     os "AIX"
 }
 
@@ -83,6 +84,14 @@ jar {
                 'Build-Version'  : versioning.info.tag ?: (versioning.info.branch + "-" + versioning.info.build),
                 'Build-Revision' : versioning.info.commit,
                 'Build-Timestamp': new Date().format("yyyy-MM-dd'T'HH:mm:ss.SSSZ").toString(),
+                'Add-Opens'      : 'java.base/java.lang.invoke' // To ignore "Illegal reflective access by retrofit2.Platform" warnings
         )
     }
 }
+
+shadowJar {
+    archiveBaseName.set('sysmon-server')
+    archiveClassifier.set('')
+    archiveVersion.set('')
+    mergeServiceFiles() // Tell plugin to merge duplicate service files
+}

server/src/main/java/org/sysmon/server/Application.java

@@ -1,12 +1,16 @@
 package org.sysmon.server;
 
+import org.apache.camel.CamelContext;
 import org.apache.camel.main.Main;
+import org.apache.camel.support.DefaultRegistry;
+import org.apache.camel.support.SimpleRegistry;
 import org.influxdb.InfluxDB;
 import org.influxdb.InfluxDBFactory;
 import picocli.CommandLine;
 
 import java.io.IOException;
 import java.net.URL;
+import java.util.Properties;
 import java.util.concurrent.Callable;
 
 @CommandLine.Command(name = "sysmon-server", mixinStandardHelpOptions = true)
@@ -21,8 +25,11 @@ public class Application implements Callable<Integer> {
     @CommandLine.Option(names = { "-p", "--influxdb-pass" }, description = "InfluxDB Password (default: ${DEFAULT-VALUE}).", defaultValue = "", paramLabel = "<pass>")
     private String influxPass;
 
-    @CommandLine.Option(names = { "-s", "--server-port" }, description = "Server port (default: ${DEFAULT-VALUE}).", defaultValue = "9925", paramLabel = "<port>")
+    @CommandLine.Option(names = { "-H", "--server-host" }, description = "Server listening address (default: ${DEFAULT-VALUE}).", paramLabel = "<addr>")
-    private String listenPort;
+    private String listenHost = "0.0.0.0";
+
+    @CommandLine.Option(names = { "-P", "--server-port" }, description = "Server listening port (default: ${DEFAULT-VALUE}).", paramLabel = "<port>")
+    private Integer listenPort = 9925;
 
 
     public static void main(String... args) {
@@ -34,14 +41,19 @@ public class Application implements Callable<Integer> {
     @Override
     public Integer call() throws IOException {
 
+        Properties properties = new Properties();
+        properties.put("http.host", listenHost);
+        properties.put("http.port", listenPort);
+
         InfluxDB influxConnectionBean = InfluxDBFactory.connect(influxUrl.toString(), influxUser, influxPass);
 
         Main main = new Main();
         main.bind("myInfluxConnection", influxConnectionBean);
-        main.bind("myListenPort", Integer.parseInt(listenPort));
+        main.bind("http.host", listenHost);
+        main.bind("http.port", listenPort);
+        main.bind("properties", properties);
         main.configure().addRoutesBuilder(ServerRouteBuilder.class);
 
-
         // now keep the application running until the JVM is terminated (ctrl + c or sigterm)
         try {
             main.run();

server/src/main/java/org/sysmon/server/ServerRouteBuilder.java

@@ -5,6 +5,8 @@ import org.apache.camel.model.rest.RestBindingMode;
 import org.apache.camel.spi.Registry;
 import org.sysmon.shared.MetricResult;
 
+import java.util.Properties;
+
 public class ServerRouteBuilder extends RouteBuilder {
 
     @Override
@@ -14,8 +16,8 @@ public class ServerRouteBuilder extends RouteBuilder {
 
         restConfiguration().component("jetty")
                 .bindingMode(RestBindingMode.auto)
-                .host("127.0.0.1")
+                .host(registry.lookupByNameAndType("http.host", String.class))
-                .port((Integer) registry.lookupByName("myListenPort"));
+                .port(registry.lookupByNameAndType("http.port", Integer.class));
 
         rest()
                 .get("/")
@@ -39,7 +41,7 @@ public class ServerRouteBuilder extends RouteBuilder {
                 .log(">>> metric: ${header.hostname} - ${body}")
                 .doTry()
                     .process(new MetricResultToPointProcessor())
-                    .to("influxdb://myInfluxConnection?databaseName=sysmon&retentionPolicy=autogen")
+                    .to("influxdb://ref.myInfluxConnection?databaseName=sysmon&retentionPolicy=autogen")
                 .doCatch(Exception.class)
                     .log("Error storing metric to InfluxDB: ${exception}")
                 .end();

server/src/main/resources/application.properties

@@ -27,7 +27,7 @@ camel.main.name = sysmon-server
 #camel.main.beanIntrospectionLoggingLevel=INFO
 
 # run in lightweight mode to be tiny as possible
-camel.main.lightweight = true
+#camel.main.lightweight = true
 # and eager load classes
 #camel.main.eager-classloading = true
 

shared/src/main/java/org/sysmon/shared/MetricExtension.java

@@ -7,6 +7,7 @@ public interface MetricExtension extends ExtensionPoint {
     boolean isSupported();
 
     String getName();
+    String getProvides();
     String getDescription();
 
     MetricResult getMetrics();

shared/src/main/java/org/sysmon/shared/PluginHelper.java

@@ -7,8 +7,12 @@ import java.io.BufferedReader;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStreamReader;
+import java.nio.file.Files;
+import java.nio.file.Paths;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.regex.Pattern;
+import java.util.stream.Stream;
 
 public class PluginHelper {
 
@@ -58,5 +62,10 @@ public class PluginHelper {
     }
 
 
+    public static boolean canExecute(String cmd) {
+        return Stream.of(System.getenv("PATH").split(Pattern.quote(File.pathSeparator)))
+                .map(Paths::get)
+                .anyMatch(path -> Files.exists(path.resolve(cmd)));
+    }
 
 }