This is an automated email from the ASF dual-hosted git repository.
eolivelli pushed a commit to branch maven-metrics
in repository https://gitbox.apache.org/repos/asf/maven-studies.git
commit b2db5fd355f81d5461931d523ce88379956bbab7
Author: Enrico Olivelli <eolive...@apache.org>
AuthorDate: Sun May 10 16:07:01 2020 +0200
separate metrics api
---
.../installer/DefaultArtifactInstaller.java | 7 +-
maven-core/pom.xml | 2 +-
.../maven/lifecycle/internal/MojoExecutor.java | 8 +-
.../DefaultPluginDependenciesResolver.java | 7 +-
.../maven/project/DefaultProjectBuilder.java | 7 +-
.../main/java/org/apache/maven/cli/MavenCli.java | 4 +-
.../transfer/AbstractMavenTransferListener.java | 22 +++-
.../transfer/BatchModeMavenTransferListener.java | 5 +-
.../cli/transfer/ConsoleMavenTransferListener.java | 7 +-
.../cli/transfer/Slf4jMavenTransferListener.java | 21 +++-
maven-metrics/pom.xml | 44 -------
.../java/org/apache/maven/metrics/Counter.java | 54 ---------
.../main/java/org/apache/maven/metrics/Gauge.java | 38 ------
.../main/java/org/apache/maven/metrics/Metric.java | 47 --------
.../org/apache/maven/metrics/MetricsContext.java | 92 --------------
.../org/apache/maven/metrics/MetricsProvider.java | 71 -----------
.../metrics/MetricsProviderLifeCycleException.java | 51 --------
.../org/apache/maven/metrics/MetricsSystem.java | 42 -------
.../java/org/apache/maven/metrics/Summary.java | 37 ------
.../java/org/apache/maven/metrics/SummarySet.java | 39 ------
.../maven/metrics/impl/NullMetricsProvider.java | 132 ---------------------
pom.xml | 6 +-
22 files changed, 68 insertions(+), 675 deletions(-)
diff --git
a/maven-compat/src/main/java/org/apache/maven/artifact/installer/DefaultArtifactInstaller.java
b/maven-compat/src/main/java/org/apache/maven/artifact/installer/DefaultArtifactInstaller.java
index abdae8b..8b23e05 100644
---
a/maven-compat/src/main/java/org/apache/maven/artifact/installer/DefaultArtifactInstaller.java
+++
b/maven-compat/src/main/java/org/apache/maven/artifact/installer/DefaultArtifactInstaller.java
@@ -32,6 +32,7 @@ import org.apache.maven.artifact.repository.metadata.Snapshot;
import
org.apache.maven.artifact.repository.metadata.SnapshotArtifactRepositoryMetadata;
import org.apache.maven.artifact.repository.metadata.Versioning;
import org.apache.maven.metrics.MetricsSystem;
+import org.apache.maven.metrics.util.MetricsUtils;
import org.apache.maven.plugin.LegacySupport;
import org.apache.maven.project.artifact.ProjectArtifactMetadata;
import org.codehaus.plexus.component.annotations.Component;
@@ -76,7 +77,7 @@ public class DefaultArtifactInstaller
public void install( File source, Artifact artifact, ArtifactRepository
localRepository )
throws ArtifactInstallationException
{
- long startInstall = System.currentTimeMillis();
+ long startInstall = MetricsUtils.now();
RepositorySystemSession session =
LegacyLocalRepositoryManager.overlay( localRepository,
legacySupport.getRepositorySession(), repoSystem );
@@ -137,8 +138,8 @@ public class DefaultArtifactInstaller
artifact.addMetadata( new ArtifactRepositoryMetadata( artifact,
versioning ) );
metricsSystem
.getMetricsContext()
- .getSummary("installArtifact", "Time to install an artifact
(ms)")
- .add(System.currentTimeMillis() - startInstall);
+ .getSummary( "installArtifact", "Time to install an artifact
(ms)" )
+ .add( MetricsUtils.elapsedMillis( startInstall ) );
}
}
diff --git a/maven-core/pom.xml b/maven-core/pom.xml
index 6fba007..1789296 100644
--- a/maven-core/pom.xml
+++ b/maven-core/pom.xml
@@ -41,7 +41,7 @@ under the License.
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
- <artifactId>maven-metrics</artifactId>
+ <artifactId>maven-metrics-api</artifactId>
</dependency>
<!-- Remove the following two deps to see how to remove Settings from the
core -->
<dependency>
diff --git
a/maven-core/src/main/java/org/apache/maven/lifecycle/internal/MojoExecutor.java
b/maven-core/src/main/java/org/apache/maven/lifecycle/internal/MojoExecutor.java
index 36421d4..cf0993b 100644
---
a/maven-core/src/main/java/org/apache/maven/lifecycle/internal/MojoExecutor.java
+++
b/maven-core/src/main/java/org/apache/maven/lifecycle/internal/MojoExecutor.java
@@ -40,6 +40,7 @@ import org.apache.maven.execution.MavenSession;
import org.apache.maven.lifecycle.LifecycleExecutionException;
import org.apache.maven.lifecycle.MissingProjectException;
import org.apache.maven.metrics.MetricsSystem;
+import org.apache.maven.metrics.util.MetricsUtils;
import org.apache.maven.plugin.BuildPluginManager;
import org.apache.maven.plugin.MavenPluginManager;
import org.apache.maven.plugin.MojoExecution;
@@ -168,7 +169,7 @@ public class MojoExecutor
DependencyContext dependencyContext )
throws LifecycleExecutionException
{
- long startExecute = System.currentTimeMillis();
+ long startExecute = MetricsUtils.now();
MojoDescriptor mojoDescriptor = mojoExecution.getMojoDescriptor();
try
@@ -217,8 +218,9 @@ public class MojoExecutor
{
pluginManager.executeMojo( session, mojoExecution );
metricsSystem.getMetricsContext()
- .getSummarySet("executeMojo", "Time to execute a mojo
(ms)")
-
.add(mojoExecution.getLifecyclePhase()+"_"+mojoExecution.getGoal(),
System.currentTimeMillis() - startExecute);
+ .getSummarySet( "executeMojo", "Time to execute a mojo
(ms)" )
+ .add( mojoExecution.getLifecyclePhase() + "_" +
mojoExecution.getGoal(),
+ MetricsUtils.elapsedMillis( startExecute ) );
}
catch ( MojoFailureException | PluginManagerException |
PluginConfigurationException
| MojoExecutionException e )
diff --git
a/maven-core/src/main/java/org/apache/maven/plugin/internal/DefaultPluginDependenciesResolver.java
b/maven-core/src/main/java/org/apache/maven/plugin/internal/DefaultPluginDependenciesResolver.java
index 9ea1f52..e9d46ae 100644
---
a/maven-core/src/main/java/org/apache/maven/plugin/internal/DefaultPluginDependenciesResolver.java
+++
b/maven-core/src/main/java/org/apache/maven/plugin/internal/DefaultPluginDependenciesResolver.java
@@ -31,6 +31,7 @@ import javax.inject.Singleton;
import org.apache.maven.RepositoryUtils;
import org.apache.maven.metrics.MetricsSystem;
+import org.apache.maven.metrics.util.MetricsUtils;
import org.apache.maven.model.Dependency;
import org.apache.maven.model.Plugin;
import org.apache.maven.plugin.PluginResolutionException;
@@ -99,7 +100,7 @@ public class DefaultPluginDependenciesResolver
public Artifact resolve( Plugin plugin, List<RemoteRepository>
repositories, RepositorySystemSession session )
throws PluginResolutionException
{
- long startResolve = System.currentTimeMillis();
+ long startResolve = MetricsUtils.now();
RequestTrace trace = RequestTrace.newChild( null, plugin );
Artifact pluginArtifact = toArtifact( plugin, session );
@@ -141,8 +142,8 @@ public class DefaultPluginDependenciesResolver
}
metricsSystem
.getMetricsContext()
- .getSummary("resolvePluginDependency", "Time to resolve
dependencies of a plugin (ms)")
- .add(System.currentTimeMillis() - startResolve);
+ .getSummary( "resolvePluginDependency", "Time to resolve
dependencies of a plugin (ms)" )
+ .add( MetricsUtils.elapsedMillis( startResolve ) );
return pluginArtifact;
}
diff --git
a/maven-core/src/main/java/org/apache/maven/project/DefaultProjectBuilder.java
b/maven-core/src/main/java/org/apache/maven/project/DefaultProjectBuilder.java
index c204c8e..118fbdb 100644
---
a/maven-core/src/main/java/org/apache/maven/project/DefaultProjectBuilder.java
+++
b/maven-core/src/main/java/org/apache/maven/project/DefaultProjectBuilder.java
@@ -45,6 +45,7 @@ import
org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.artifact.repository.LegacyLocalRepositoryManager;
import org.apache.maven.bridge.MavenRepositorySystem;
import org.apache.maven.metrics.MetricsSystem;
+import org.apache.maven.metrics.util.MetricsUtils;
import org.apache.maven.model.Build;
import org.apache.maven.model.Dependency;
import org.apache.maven.model.DependencyManagement;
@@ -323,13 +324,13 @@ public class DefaultProjectBuilder
ArtifactRequest pomRequest = new ArtifactRequest();
pomRequest.setArtifact( pomArtifact );
pomRequest.setRepositories( config.repositories );
- long startResolvePom = System.currentTimeMillis();
+ long startResolvePom = MetricsUtils.now();
ArtifactResult pomResult = repoSystem.resolveArtifact(
config.session, pomRequest );
metricsSystem
.getMetricsContext()
- .getSummary("resolvePom", "Time to resolve pom artifact (ms)")
- .add(System.currentTimeMillis() - startResolvePom);
+ .getSummary( "resolvePom" , "Time to resolve pom artifact
(ms)" )
+ .add( MetricsUtils.elapsedMillis( startResolvePom ) );
pomArtifact = pomResult.getArtifact();
localProject = pomResult.getRepository() instanceof
WorkspaceRepository;
diff --git a/maven-embedder/src/main/java/org/apache/maven/cli/MavenCli.java
b/maven-embedder/src/main/java/org/apache/maven/cli/MavenCli.java
index ffbd3ed..b8dc9b9 100644
--- a/maven-embedder/src/main/java/org/apache/maven/cli/MavenCli.java
+++ b/maven-embedder/src/main/java/org/apache/maven/cli/MavenCli.java
@@ -1744,12 +1744,12 @@ public class MavenCli
protected TransferListener getConsoleTransferListener( boolean
printResourceNames )
{
- return new ConsoleMavenTransferListener( System.out,
printResourceNames );
+ return new ConsoleMavenTransferListener( System.out,
printResourceNames, metricsSystem.getMetricsContext() );
}
protected TransferListener getBatchTransferListener()
{
- return new Slf4jMavenTransferListener();
+ return new Slf4jMavenTransferListener(
metricsSystem.getMetricsContext() );
}
protected void customizeContainer( PlexusContainer container )
diff --git
a/maven-embedder/src/main/java/org/apache/maven/cli/transfer/AbstractMavenTransferListener.java
b/maven-embedder/src/main/java/org/apache/maven/cli/transfer/AbstractMavenTransferListener.java
index 72bffc3..15b8371 100644
---
a/maven-embedder/src/main/java/org/apache/maven/cli/transfer/AbstractMavenTransferListener.java
+++
b/maven-embedder/src/main/java/org/apache/maven/cli/transfer/AbstractMavenTransferListener.java
@@ -25,6 +25,7 @@ import java.text.DecimalFormatSymbols;
import java.util.Locale;
import org.apache.commons.lang3.Validate;
+import org.apache.maven.metrics.MetricsContext;
import org.eclipse.aether.transfer.AbstractTransferListener;
import org.eclipse.aether.transfer.TransferCancelledException;
import org.eclipse.aether.transfer.TransferEvent;
@@ -210,11 +211,13 @@ public abstract class AbstractMavenTransferListener
}
}
- protected PrintStream out;
+ protected final PrintStream out;
+ private final MetricsContext metricsContext;
- protected AbstractMavenTransferListener( PrintStream out )
+ protected AbstractMavenTransferListener( PrintStream out , MetricsContext
metricsContext )
{
this.out = out;
+ this.metricsContext = metricsContext;
}
@Override
@@ -247,7 +250,7 @@ public abstract class AbstractMavenTransferListener
{
String action = ( event.getRequestType() ==
TransferEvent.RequestType.PUT ? "Uploaded" : "Downloaded" );
String direction = event.getRequestType() ==
TransferEvent.RequestType.PUT ? "to" : "from";
-
+ String metricDescription = event.getRequestType() ==
TransferEvent.RequestType.PUT ? "uploads" : "downloads";
TransferResource resource = event.getResource();
long contentLength = event.getTransferredBytes();
FileSizeFormat format = new FileSizeFormat( Locale.ENGLISH );
@@ -267,6 +270,19 @@ public abstract class AbstractMavenTransferListener
message.append( ')' );
out.println( message.toString() );
+
+ metricsContext
+ .getContext( "transfer" )
+ .getSummary( event.getRequestType().name().toLowerCase() +
"_bytes",
+ "total bytes ( " + metricDescription + ")" )
+ .add( contentLength );
+
+ metricsContext
+ .getContext( "transfer" )
+ .getSummary( event.getRequestType().name().toLowerCase() +
"_time",
+ "total time (" + metricDescription + ") " )
+ .add( duration );
+
}
}
diff --git
a/maven-embedder/src/main/java/org/apache/maven/cli/transfer/BatchModeMavenTransferListener.java
b/maven-embedder/src/main/java/org/apache/maven/cli/transfer/BatchModeMavenTransferListener.java
index 2eee8f6..38adf53 100644
---
a/maven-embedder/src/main/java/org/apache/maven/cli/transfer/BatchModeMavenTransferListener.java
+++
b/maven-embedder/src/main/java/org/apache/maven/cli/transfer/BatchModeMavenTransferListener.java
@@ -20,6 +20,7 @@ package org.apache.maven.cli.transfer;
*/
import java.io.PrintStream;
+import org.apache.maven.metrics.MetricsContext;
/**
* BatchModeMavenTransferListener
@@ -27,9 +28,9 @@ import java.io.PrintStream;
public class BatchModeMavenTransferListener
extends AbstractMavenTransferListener
{
- public BatchModeMavenTransferListener( PrintStream out )
+ public BatchModeMavenTransferListener( PrintStream out, MetricsContext
metricsContext )
{
- super( out );
+ super( out, metricsContext );
}
}
diff --git
a/maven-embedder/src/main/java/org/apache/maven/cli/transfer/ConsoleMavenTransferListener.java
b/maven-embedder/src/main/java/org/apache/maven/cli/transfer/ConsoleMavenTransferListener.java
index 950b5d0..e9e6125 100644
---
a/maven-embedder/src/main/java/org/apache/maven/cli/transfer/ConsoleMavenTransferListener.java
+++
b/maven-embedder/src/main/java/org/apache/maven/cli/transfer/ConsoleMavenTransferListener.java
@@ -27,6 +27,7 @@ import java.util.Locale;
import java.util.Map;
import org.apache.commons.lang3.StringUtils;
+import org.apache.maven.metrics.MetricsContext;
import org.eclipse.aether.transfer.TransferCancelledException;
import org.eclipse.aether.transfer.TransferEvent;
import org.eclipse.aether.transfer.TransferResource;
@@ -43,12 +44,12 @@ public class ConsoleMavenTransferListener
private Map<TransferResource, Long> transfers =
Collections.synchronizedMap(
new LinkedHashMap<>() );
- private boolean printResourceNames;
+ private final boolean printResourceNames;
private int lastLength;
- public ConsoleMavenTransferListener( PrintStream out, boolean
printResourceNames )
+ public ConsoleMavenTransferListener( PrintStream out, boolean
printResourceNames, MetricsContext metricsContext )
{
- super( out );
+ super( out, metricsContext );
this.printResourceNames = printResourceNames;
}
diff --git
a/maven-embedder/src/main/java/org/apache/maven/cli/transfer/Slf4jMavenTransferListener.java
b/maven-embedder/src/main/java/org/apache/maven/cli/transfer/Slf4jMavenTransferListener.java
index 57e69ba..88cb37c 100644
---
a/maven-embedder/src/main/java/org/apache/maven/cli/transfer/Slf4jMavenTransferListener.java
+++
b/maven-embedder/src/main/java/org/apache/maven/cli/transfer/Slf4jMavenTransferListener.java
@@ -22,6 +22,7 @@ package org.apache.maven.cli.transfer;
import java.util.Locale;
import
org.apache.maven.cli.transfer.AbstractMavenTransferListener.FileSizeFormat;
+import org.apache.maven.metrics.MetricsContext;
import org.eclipse.aether.transfer.AbstractTransferListener;
import org.eclipse.aether.transfer.TransferCancelledException;
import org.eclipse.aether.transfer.TransferEvent;
@@ -37,16 +38,19 @@ public class Slf4jMavenTransferListener
{
protected final Logger out;
+ private final MetricsContext metricsContext;
- public Slf4jMavenTransferListener()
+ public Slf4jMavenTransferListener( MetricsContext metricsContext )
{
this.out = LoggerFactory.getLogger( Slf4jMavenTransferListener.class );
+ this.metricsContext = metricsContext;
}
// TODO should we deprecate?
- public Slf4jMavenTransferListener( Logger out )
+ public Slf4jMavenTransferListener( Logger out, MetricsContext
metricsContext )
{
this.out = out;
+ this.metricsContext = metricsContext;
}
@Override
@@ -78,6 +82,7 @@ public class Slf4jMavenTransferListener
{
String action = ( event.getRequestType() ==
TransferEvent.RequestType.PUT ? "Uploaded" : "Downloaded" );
String direction = event.getRequestType() ==
TransferEvent.RequestType.PUT ? "to" : "from";
+ String metricDescription = event.getRequestType() ==
TransferEvent.RequestType.PUT ? "uploads" : "downloads";
TransferResource resource = event.getResource();
long contentLength = event.getTransferredBytes();
@@ -98,6 +103,18 @@ public class Slf4jMavenTransferListener
message.append( ')' );
out.info( message.toString() );
+
+ metricsContext
+ .getContext( "transfer" )
+ .getSummary( event.getRequestType().name().toLowerCase() +
"_bytes",
+ "total bytes ( " + metricDescription + ")" )
+ .add( contentLength );
+
+ metricsContext
+ .getContext( "transfer" )
+ .getSummary( event.getRequestType().name().toLowerCase() +
"_time",
+ "total time (" + metricDescription + ") " )
+ .add( duration );
}
}
diff --git a/maven-metrics/pom.xml b/maven-metrics/pom.xml
deleted file mode 100644
index ab30cb6..0000000
--- a/maven-metrics/pom.xml
+++ /dev/null
@@ -1,44 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-
-<!--
-Licensed to the Apache Software Foundation (ASF) under one
-or more contributor license agreements. See the NOTICE file
-distributed with this work for additional information
-regarding copyright ownership. The ASF licenses this file
-to you under the Apache License, Version 2.0 (the
-"License"); you may not use this file except in compliance
-with the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing,
-software distributed under the License is distributed on an
-"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-KIND, either express or implied. See the License for the
-specific language governing permissions and limitations
-under the License.
--->
-
-<project xmlns="http://maven.apache.org/POM/4.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
https://maven.apache.org/xsd/maven-4.0.0.xsd";>
- <modelVersion>4.0.0</modelVersion>
-
- <parent>
- <groupId>org.apache.maven</groupId>
- <artifactId>maven</artifactId>
- <version>3.7.0-SNAPSHOT</version>
- </parent>
-
- <artifactId>maven-metrics</artifactId>
-
- <name>Maven Metrics</name>
-
- <dependencies>
- <dependency>
- <groupId>org.apache.commons</groupId>
- <artifactId>commons-lang3</artifactId>
- </dependency>
- </dependencies>
-
- <build>
- </build>
-</project>
diff --git a/maven-metrics/src/main/java/org/apache/maven/metrics/Counter.java
b/maven-metrics/src/main/java/org/apache/maven/metrics/Counter.java
deleted file mode 100644
index e2eb1d1..0000000
--- a/maven-metrics/src/main/java/org/apache/maven/metrics/Counter.java
+++ /dev/null
@@ -1,54 +0,0 @@
-package org.apache.maven.metrics;
-
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-/**
- * A counter refers to a value which can only increase.
- * Usually the value is reset when the process starts.
- */
-public interface Counter
-{
-
- /**
- * Increment the value by one.
- * <p>This method is thread safe, The MetricsProvider will take care of
synchronization.</p>
- */
- default void inc()
- {
- add( 1 );
- }
-
- /**
- * Increment the value by a given amount.
- * <p>This method is thread safe, The MetricsProvider will take care of
synchronization.</p>
- *
- * @param delta amount to increment, this cannot be a negative number.
- */
- void add( long delta );
-
- /**
- * Get the current value held by the counter.
- * <p>This method is thread safe, The MetricsProvider will take care of
synchronization.</p>
- *
- * @return the current value
- */
- long get();
-
-}
diff --git a/maven-metrics/src/main/java/org/apache/maven/metrics/Gauge.java
b/maven-metrics/src/main/java/org/apache/maven/metrics/Gauge.java
deleted file mode 100644
index 1c6559c..0000000
--- a/maven-metrics/src/main/java/org/apache/maven/metrics/Gauge.java
+++ /dev/null
@@ -1,38 +0,0 @@
-package org.apache.maven.metrics;
-
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-/**
- * A Gauge is an application provided object which will be called by the
framework in order to sample the value
- * of an integer value.
- */
-public interface Gauge
-{
-
- /**
- * Returns the current value associated with this gauge.
- * The MetricsProvider will call this callback without taking care of
synchronization, it is up to the application
- * to handle thread safety.
- *
- * @return the current value for the gauge
- */
- Number get();
-
-}
diff --git a/maven-metrics/src/main/java/org/apache/maven/metrics/Metric.java
b/maven-metrics/src/main/java/org/apache/maven/metrics/Metric.java
deleted file mode 100644
index f77c850..0000000
--- a/maven-metrics/src/main/java/org/apache/maven/metrics/Metric.java
+++ /dev/null
@@ -1,47 +0,0 @@
-package org.apache.maven.metrics;
-
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-/**
- * Interface common to every metrics.
- * It allows the user to define common metadata about the metric.
- */
-public interface Metric
-{
- /**
- * Define a textual label for the metric
- * @param label the label (plain text)
- * @return the metric handle itself
- */
- default <T extends Metric> T setLabel( String label )
- {
- return (T) this;
- }
-
- /**
- * Define a textual help for the metric
- * @param help the help (plain text)
- * @return the metric handle itself
- */
- default <T extends Metric> T setHelp( String help )
- {
- return (T) this;
- }
-}
diff --git
a/maven-metrics/src/main/java/org/apache/maven/metrics/MetricsContext.java
b/maven-metrics/src/main/java/org/apache/maven/metrics/MetricsContext.java
deleted file mode 100644
index cb85793..0000000
--- a/maven-metrics/src/main/java/org/apache/maven/metrics/MetricsContext.java
+++ /dev/null
@@ -1,92 +0,0 @@
-package org.apache.maven.metrics;
-
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-/**
- * A MetricsContext is like a namespace for metrics. Each component/submodule
- * will have its own MetricsContext.
- * <p>
- * In some cases it is possible to have a separate MetricsContext for each
- * instance of a component, for instance on the server side a possible usecase
- * it to gather metrics for every other peer.
- * </p>
- * <p>
- * Contexts are organized in a hierarchy.
- * </p>
- *
- */
-public interface MetricsContext
-{
-
- /**
- * Returns a sub context.
- *
- * @param name the name of the subcontext
- *
- * @return a new metrics context.
- */
- MetricsContext getContext( String name );
-
- /**
- * Returns a counter.
- *
- * @param name
- * @return the counter identified by name in this context.
- */
- Counter getCounter( String name, String description );
-
- /**
- * Registers an user provided {@link Gauge} which will be called by the
- * MetricsProvider in order to sample an integer value.
- * If another Gauge was already registered the new one will
- * take its place.
- * Registering a null callback is not allowed.
- *
- * @param name unique name of the Gauge in this context
- * @param gauge the implementation of the Gauge
- *
- */
- void registerGauge( String name, String description, Gauge gauge );
-
- /**
- * Unregisters the user provided {@link Gauge} bound to the given name.
- *
- * @param name unique name of the Gauge in this context
- *
- */
- void unregisterGauge( String name );
-
- /**
- * Returns a summary.
- *
- * @param name
- * @return the summary identified by name in this context.
- */
- Summary getSummary( String name, String description );
-
- /**
- * Returns a set of summaries.
- *
- * @param name
- * @return the summary identified by name in this context.
- */
- SummarySet getSummarySet( String name, String description );
-
-}
diff --git
a/maven-metrics/src/main/java/org/apache/maven/metrics/MetricsProvider.java
b/maven-metrics/src/main/java/org/apache/maven/metrics/MetricsProvider.java
deleted file mode 100644
index f4af144..0000000
--- a/maven-metrics/src/main/java/org/apache/maven/metrics/MetricsProvider.java
+++ /dev/null
@@ -1,71 +0,0 @@
-package org.apache.maven.metrics;
-
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-/**
- * A MetricsProvider is a system which collects Metrics and publishes current
values to external facilities.
- *
- * The system will create an instance of the configured class using the
default constructor, which must be public.<br>
- * After the instantiation of the provider, the system will call {@link
#configure(java.util.Properties) }
- * in order to provide configuration,
- * and then when the system is ready to work it will call {@link #start() }.
- * <br>
- * Providers can be used both on ZooKeeper servers and on ZooKeeper clients.
- */
-public interface MetricsProvider
-{
- /**
- * Start the provider.
- * For instance such method will start a network endpoint.
- *
- * @throws MetricsProviderLifeCycleException in case of failure
- */
- default void start() throws MetricsProviderLifeCycleException
- {
- }
-
- /**
- * Provides access to the root context.
- *
- * @return the root context
- */
- MetricsContext getRootContext();
-
- /**
- * Releases resources held by the provider.<br>
- * This method must not throw exceptions.
- * The provider may dump the results to the logs or send
- * the results to an external <br>
- * This method can be called more than once.
- */
- default void stop()
- {
- }
-
- /**
- * Reset all values.
- * This method is optional and can be noop, depending
- * on the underlying implementation.
- */
- default void resetAllValues()
- {
- }
-
-}
diff --git
a/maven-metrics/src/main/java/org/apache/maven/metrics/MetricsProviderLifeCycleException.java
b/maven-metrics/src/main/java/org/apache/maven/metrics/MetricsProviderLifeCycleException.java
deleted file mode 100644
index ecf7d5b..0000000
---
a/maven-metrics/src/main/java/org/apache/maven/metrics/MetricsProviderLifeCycleException.java
+++ /dev/null
@@ -1,51 +0,0 @@
-package org.apache.maven.metrics;
-
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-/**
- * A generic exception thrown during the licecycle of a MetricsProvider.
- * <p>These exception will prevent the system from booting.</p>
- * <p>Normally these exception will be ignored during shutdown.</p>
- */
-public class MetricsProviderLifeCycleException extends Exception
-{
-
- private static final long serialVersionUID = 1L;
-
- public MetricsProviderLifeCycleException()
- {
- }
-
- public MetricsProviderLifeCycleException( String message )
- {
- super( message );
- }
-
- public MetricsProviderLifeCycleException( String message, Throwable cause )
- {
- super( message, cause );
- }
-
- public MetricsProviderLifeCycleException( Throwable cause )
- {
- super( cause );
- }
-
-}
diff --git
a/maven-metrics/src/main/java/org/apache/maven/metrics/MetricsSystem.java
b/maven-metrics/src/main/java/org/apache/maven/metrics/MetricsSystem.java
deleted file mode 100644
index 9e70db5..0000000
--- a/maven-metrics/src/main/java/org/apache/maven/metrics/MetricsSystem.java
+++ /dev/null
@@ -1,42 +0,0 @@
-package org.apache.maven.metrics;
-
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-/**
- * Component to access Metrics System
- * @author Enrico Olivelli
- */
-public interface MetricsSystem
-{
-
- String HINT = "metricsSystem";
-
- /**
- * Access current metrics context.
- * @return the metrics context
- */
- MetricsContext getMetricsContext();
-
- /**
- * Low level Access to the Provider
- * @return the provider
- */
- MetricsProvider getMetricsProvider();
-}
diff --git a/maven-metrics/src/main/java/org/apache/maven/metrics/Summary.java
b/maven-metrics/src/main/java/org/apache/maven/metrics/Summary.java
deleted file mode 100644
index 9ad49c1..0000000
--- a/maven-metrics/src/main/java/org/apache/maven/metrics/Summary.java
+++ /dev/null
@@ -1,37 +0,0 @@
-package org.apache.maven.metrics;
-
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-/**
- * Summaries track the size and number of events.
- * They are able to publish minumum, maximum, average values, depending on the
capabilities of the MetricsProvider.
- */
-public interface Summary
-{
-
- /**
- * Register a value.
- * <p>This method is thread safe, The MetricsProvider will take care of
synchronization.</p>
- *
- * @param value current value
- */
- void add( long value );
-
-}
diff --git
a/maven-metrics/src/main/java/org/apache/maven/metrics/SummarySet.java
b/maven-metrics/src/main/java/org/apache/maven/metrics/SummarySet.java
deleted file mode 100644
index e31764a..0000000
--- a/maven-metrics/src/main/java/org/apache/maven/metrics/SummarySet.java
+++ /dev/null
@@ -1,39 +0,0 @@
-package org.apache.maven.metrics;
-
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-/**
- * Summaries track the size and number of events.
- * They are able to publish minumum, maximum, average values, depending on the
capabilities of the MetricsProvider.
- * A SummarySet is a set of {@link Summary}.
- */
-public interface SummarySet
-{
-
- /**
- * Register a value.
- * <p>This method is thread safe, The MetricsProvider will take care of
synchronization.</p>
- *
- * @param key the key to access the Summary for the given key
- * @param value current value
- */
- void add( String key, long value );
-
-}
diff --git
a/maven-metrics/src/main/java/org/apache/maven/metrics/impl/NullMetricsProvider.java
b/maven-metrics/src/main/java/org/apache/maven/metrics/impl/NullMetricsProvider.java
deleted file mode 100644
index a94c3b2..0000000
---
a/maven-metrics/src/main/java/org/apache/maven/metrics/impl/NullMetricsProvider.java
+++ /dev/null
@@ -1,132 +0,0 @@
-package org.apache.maven.metrics.impl;
-
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-import org.apache.maven.metrics.Counter;
-import org.apache.maven.metrics.Gauge;
-import org.apache.maven.metrics.MetricsContext;
-import org.apache.maven.metrics.MetricsProvider;
-import org.apache.maven.metrics.Summary;
-import org.apache.maven.metrics.SummarySet;
-
-/**
- * This is a dummy MetricsProvider which does nothing.
- */
-public class NullMetricsProvider implements MetricsProvider
-{
-
- /**
- * Instance of NullMetricsProvider useful for tests.
- */
- public static final MetricsProvider INSTANCE = new NullMetricsProvider();
-
- @Override
- public MetricsContext getRootContext()
- {
- return NullMetricsContext.INSTANCE;
- }
-
- /**
- * Default no-op implementation.
- */
- public static final class NullMetricsContext implements MetricsContext
- {
-
- public static final NullMetricsContext INSTANCE = new
NullMetricsContext();
-
- @Override
- public MetricsContext getContext( String name )
- {
- return INSTANCE;
- }
-
- @Override
- public Counter getCounter( String name, String description )
- {
- return NullCounter.INSTANCE;
- }
-
- @Override
- public void registerGauge( String name, String description, Gauge
gauge )
- {
- }
-
- @Override
- public void unregisterGauge( String name )
- {
- }
-
- @Override
- public Summary getSummary( String name, String description )
- {
- return NullSummary.INSTANCE;
- }
-
- @Override
- public SummarySet getSummarySet( String name, String description )
- {
- return NullSummarySet.INSTANCE;
- }
-
- }
-
- private static final class NullCounter implements Counter
- {
-
- private static final NullCounter INSTANCE = new NullCounter();
-
- @Override
- public void add( long delta )
- {
- }
-
- @Override
- public long get()
- {
- return 0;
- }
-
- }
-
- private static final class NullSummary implements Summary
- {
-
- private static final NullSummary INSTANCE = new NullSummary();
-
- @Override
- public void add( long value )
- {
- }
-
- }
-
- private static final class NullSummarySet implements SummarySet
- {
-
- private static final NullSummarySet INSTANCE = new NullSummarySet();
-
- @Override
- public void add( String key, long value )
- {
- }
-
- }
-
-}
diff --git a/pom.xml b/pom.xml
index 2b6f841..9e09825 100644
--- a/pom.xml
+++ b/pom.xml
@@ -64,6 +64,7 @@ under the License.
<securityDispatcherVersion>1.4</securityDispatcherVersion>
<cipherVersion>1.8</cipherVersion>
<modelloVersion>1.11</modelloVersion>
+ <metricsVersion>1.0.0-SNAPSHOT</metricsVersion>
<jxpathVersion>1.3</jxpathVersion>
<resolverVersion>1.4.2</resolverVersion>
<slf4jVersion>1.7.29</slf4jVersion>
@@ -84,7 +85,6 @@ under the License.
<module>maven-builder-support</module>
<module>maven-model</module>
<module>maven-model-builder</module>
- <module>maven-metrics</module>
<module>maven-core</module>
<module>maven-settings</module>
<module>maven-settings-builder</module>
@@ -186,8 +186,8 @@ under the License.
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
- <artifactId>maven-metrics</artifactId>
- <version>${project.version}</version>
+ <artifactId>maven-metrics-api</artifactId>
+ <version>${metricsVersion}</version>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
