o Refactored code

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-3/trunk@901701 13f79535-47bb-0310-9956-ffa450edef68

maven-core/src/main/java/org/apache/maven/project/artifact/MavenMetadataSource.java

@@ -24,7 +24,6 @@ import java.util.HashMap;
 import java.util.LinkedHashMap;
 import java.util.LinkedHashSet;
 import java.util.List;
-import java.util.Locale;
 import java.util.Map;
 import java.util.Properties;
 import java.util.Set;
@@ -62,6 +61,7 @@ import org.apache.maven.project.MavenProject;
 import org.apache.maven.project.ProjectBuilder;
 import org.apache.maven.project.ProjectBuildingException;
 import org.apache.maven.project.ProjectBuildingRequest;
+import org.apache.maven.properties.internal.EnvironmentUtils;
 import org.apache.maven.repository.legacy.metadata.DefaultMetadataResolutionRequest;
 import org.apache.maven.repository.legacy.metadata.MetadataResolutionRequest;
 import org.codehaus.plexus.PlexusContainer;
@@ -69,7 +69,6 @@ import org.codehaus.plexus.component.annotations.Component;
 import org.codehaus.plexus.component.annotations.Requirement;
 import org.codehaus.plexus.component.repository.exception.ComponentLookupException;
 import org.codehaus.plexus.logging.Logger;
-import org.codehaus.plexus.util.Os;
 
 /**
  * @author Jason van Zyl
@@ -100,8 +99,6 @@ public class MavenMetadataSource
     @Requirement
     private LegacySupport legacySupport;
 
-    private static Properties envVars;
-
     private void injectSession( MetadataResolutionRequest request )
     {
         MavenSession session = legacySupport.getSession();
@@ -700,19 +697,7 @@ public class MavenMetadataSource
     {
         Properties props = new Properties();
 
-        if ( envVars == null )
-        {
-            Properties tmp = new Properties();
-            boolean caseSensitive = !Os.isFamily( Os.FAMILY_WINDOWS );
-            for ( Map.Entry<String, String> entry : System.getenv().entrySet() )
-            {
-                String key = "env." + ( caseSensitive ? entry.getKey() : entry.getKey().toUpperCase( Locale.ENGLISH ) );
-                tmp.setProperty( key, entry.getValue() );
-            }
-            envVars = tmp;
-        }
-
-        props.putAll( envVars );
+        EnvironmentUtils.addEnvVars( props );
 
         props.putAll( System.getProperties() );
 

maven-core/src/main/java/org/apache/maven/properties/internal/EnvironmentUtils.java

@@ -0,0 +1,69 @@
+package org.apache.maven.properties.internal;
+
+/*
+ * 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 java.util.Locale;
+import java.util.Map;
+import java.util.Properties;
+
+import org.codehaus.plexus.util.Os;
+
+/**
+ * Assists the project builder. <strong>Warning:</strong> This is an internal utility class that is only public for
+ * technical reasons, it is not part of the public API. In particular, this class can be changed or deleted without
+ * prior notice.
+ * 
+ * @author Benjamin Bentmann
+ */
+public class EnvironmentUtils
+{
+
+    private static Properties envVars;
+
+    /**
+     * Adds the environment variables in the form of properties whose keys are prefixed with {@code env.}, e.g. {@code
+     * env.PATH}. Unlike native environment variables, properties are always case-sensitive. For the sake of
+     * determinism, the environment variable names will be normalized to upper case on platforms with case-insensitive
+     * variable lookup.
+     * 
+     * @param props The properties to add the environment variables to, may be {@code null}.
+     */
+    public static void addEnvVars( Properties props )
+    {
+        if ( props != null )
+        {
+            if ( envVars == null )
+            {
+                Properties tmp = new Properties();
+                boolean caseSensitive = !Os.isFamily( Os.FAMILY_WINDOWS );
+                for ( Map.Entry<String, String> entry : System.getenv().entrySet() )
+                {
+                    String key =
+                        "env." + ( caseSensitive ? entry.getKey() : entry.getKey().toUpperCase( Locale.ENGLISH ) );
+                    tmp.setProperty( key, entry.getValue() );
+                }
+                envVars = tmp;
+            }
+
+            props.putAll( envVars );
+        }
+    }
+
+}

maven-embedder/src/main/java/org/apache/maven/cli/MavenCli.java

@@ -22,7 +22,6 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.LinkedHashMap;
 import java.util.List;
-import java.util.Locale;
 import java.util.Map;
 import java.util.Properties;
 import java.util.StringTokenizer;
@@ -40,6 +39,7 @@ import org.apache.maven.execution.MavenExecutionResult;
 import org.apache.maven.lifecycle.LifecycleExecutionException;
 import org.apache.maven.model.building.ModelProcessor;
 import org.apache.maven.project.MavenProject;
+import org.apache.maven.properties.internal.EnvironmentUtils;
 import org.apache.maven.repository.ArtifactTransferListener;
 import org.apache.maven.settings.building.DefaultSettingsBuildingRequest;
 import org.apache.maven.settings.building.SettingsBuilder;
@@ -52,7 +52,6 @@ import org.codehaus.plexus.DefaultPlexusContainer;
 import org.codehaus.plexus.PlexusContainer;
 import org.codehaus.plexus.classworlds.ClassWorld;
 import org.codehaus.plexus.component.repository.exception.ComponentLookupException;
-import org.codehaus.plexus.util.Os;
 import org.codehaus.plexus.util.StringUtils;
 import org.sonatype.plexus.components.cipher.DefaultPlexusCipher;
 import org.sonatype.plexus.components.sec.dispatcher.DefaultSecDispatcher;
@@ -898,14 +897,7 @@ public class MavenCli
 
     static void populateProperties( CommandLine commandLine, Properties systemProperties, Properties userProperties )
     {
-        // add the env vars to the property set, with the "env." prefix
-        // XXX support for env vars should probably be removed from the ModelInterpolator
-        boolean caseSensitive = !Os.isFamily( Os.FAMILY_WINDOWS );
-        for ( Map.Entry<String, String> entry : System.getenv().entrySet() )
-        {
-            String key = "env." + ( caseSensitive ? entry.getKey() : entry.getKey().toUpperCase( Locale.ENGLISH ) );
-            systemProperties.setProperty( key, entry.getValue() );
-        }
+        EnvironmentUtils.addEnvVars( systemProperties );
 
         // ----------------------------------------------------------------------
         // Options that are set on the command line become system properties