[MNG-8081] interpolate available properties during default profile se…

…lection

maven-model-builder/pom.xml

@@ -87,6 +87,11 @@ under the License.
       <artifactId>xmlunit-matchers</artifactId>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-core</artifactId>
+      <scope>test</scope>
+    </dependency>
     <dependency>
       <groupId>org.powermock</groupId>
       <artifactId>powermock-reflect</artifactId>

maven-model-builder/src/main/java/org/apache/maven/model/profile/DefaultProfileSelector.java

@@ -22,17 +22,27 @@
 import javax.inject.Named;
 import javax.inject.Singleton;
 
+import java.io.File;
 import java.util.ArrayList;
 import java.util.Collection;
+import java.util.Collections;
 import java.util.HashSet;
 import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+import java.util.function.UnaryOperator;
+import java.util.stream.Collectors;
 
 import org.apache.maven.model.Activation;
+import org.apache.maven.model.Model;
 import org.apache.maven.model.Profile;
+import org.apache.maven.model.building.DefaultModelBuildingRequest;
+import org.apache.maven.model.building.ModelBuildingRequest;
 import org.apache.maven.model.building.ModelProblem.Severity;
 import org.apache.maven.model.building.ModelProblem.Version;
 import org.apache.maven.model.building.ModelProblemCollector;
 import org.apache.maven.model.building.ModelProblemCollectorRequest;
+import org.apache.maven.model.interpolation.ModelInterpolator;
 import org.apache.maven.model.profile.activation.ProfileActivator;
 
 /**
@@ -44,29 +54,56 @@
 @Singleton
 public class DefaultProfileSelector implements ProfileSelector {
 
+    private static Properties asProperties(Map<String, String> m) {
+        return m.entrySet().stream()
+                .collect(Collectors.toMap(e -> e.getKey(), e -> e.getValue(), (l, r) -> r, Properties::new));
+    }
+
     @Inject
     private List<ProfileActivator> activators = new ArrayList<>();
 
+    @Inject
+    private ModelInterpolator interpolator = new ModelInterpolator() {
+
+        @Override
+        public Model interpolateModel(
+                Model model, File projectDir, ModelBuildingRequest request, ModelProblemCollector problems) {
+            return model;
+        }
+    };
+
     public DefaultProfileSelector addProfileActivator(ProfileActivator profileActivator) {
         if (profileActivator != null) {
             activators.add(profileActivator);
         }
         return this;
     }
 
+    public void setInterpolator(ModelInterpolator interpolator) {
+        this.interpolator = interpolator;
+    }
+
     @Override
     public List<Profile> getActiveProfiles(
             Collection<Profile> profiles, ProfileActivationContext context, ModelProblemCollector problems) {
+
+        if (profiles.stream().map(Profile::getId).distinct().count() < profiles.size()) {
+            // invalid profile specification
+            return Collections.emptyList();
+        }
         Collection<String> activatedIds = new HashSet<>(context.getActiveProfileIds());
         Collection<String> deactivatedIds = new HashSet<>(context.getInactiveProfileIds());
 
         List<Profile> activeProfiles = new ArrayList<>(profiles.size());
         List<Profile> activePomProfilesByDefault = new ArrayList<>();
         boolean activatedPomProfileNotByDefault = false;
 
+        Map<String, Profile> activation = earlyInterpolateProfileActivations(profiles, context);
+
         for (Profile profile : profiles) {
             if (!deactivatedIds.contains(profile.getId())) {
-                if (activatedIds.contains(profile.getId()) || isActive(profile, context, problems)) {
+                if (activatedIds.contains(profile.getId())
+                        || isActive(activation.get(profile.getId()), context, problems)) {
                     activeProfiles.add(profile);
 
                     if (Profile.SOURCE_POM.equals(profile.getSource())) {
@@ -89,6 +126,35 @@ public List<Profile> getActiveProfiles(
         return activeProfiles;
     }
 
+    private Map<String, Profile> earlyInterpolateProfileActivations(
+            Collection<Profile> original, ProfileActivationContext context) {
+
+        Model model = new Model();
+
+        UnaryOperator<Profile> activatableProfile = p -> {
+            Profile result = new Profile();
+            result.setId(p.getId());
+            result.setActivation(p.getActivation());
+            return result;
+        };
+        model.setProfiles(original.stream().map(activatableProfile).collect(Collectors.toList()));
+
+        ModelBuildingRequest mbr = new DefaultModelBuildingRequest()
+                .setActiveProfileIds(context.getActiveProfileIds())
+                .setInactiveProfileIds(context.getInactiveProfileIds())
+                .setRawModel(model)
+                .setSystemProperties(asProperties(context.getSystemProperties()))
+                .setUserProperties(asProperties(context.getUserProperties()))
+                .setTwoPhaseBuilding(true)
+                .setValidationLevel(ModelBuildingRequest.VALIDATION_LEVEL_MINIMAL);
+
+        interpolator
+                .interpolateModel(model, context.getProjectDirectory(), mbr, problem -> {})
+                .getProfiles();
+
+        return model.getProfiles().stream().collect(Collectors.toMap(Profile::getId, UnaryOperator.identity()));
+    }
+
     private boolean isActive(Profile profile, ProfileActivationContext context, ModelProblemCollector problems) {
         boolean isActive = false;
         for (ProfileActivator activator : activators) {

maven-model-builder/src/test/java/org/apache/maven/model/profile/DefaultProfileSelectorTest.java

@@ -0,0 +1,90 @@
+/*
+ * 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.
+ */
+package org.apache.maven.model.profile;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+
+import org.apache.maven.model.Activation;
+import org.apache.maven.model.ActivationProperty;
+import org.apache.maven.model.Model;
+import org.apache.maven.model.Profile;
+import org.apache.maven.model.interpolation.ModelInterpolator;
+import org.apache.maven.model.profile.activation.PropertyProfileActivator;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mockito;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertSame;
+
+public class DefaultProfileSelectorTest {
+    private DefaultProfileSelector selector;
+    private ModelInterpolator interpolator;
+
+    @Before
+    public void setup() {
+        interpolator = Mockito.mock(ModelInterpolator.class);
+
+        selector = new DefaultProfileSelector();
+        selector.addProfileActivator(new PropertyProfileActivator());
+        selector.setInterpolator(interpolator);
+    }
+
+    @Test
+    public void testProfileActivationInterpolation() {
+        Map<String, String> userProperties = Collections.singletonMap("foo", "bar");
+
+        Mockito.when(interpolator.interpolateModel(Mockito.any(), Mockito.any(), Mockito.any(), Mockito.any()))
+                .thenAnswer(invocation -> {
+                    Model m = invocation.getArgument(0);
+
+                    m.getProfiles().forEach(p -> {
+                        Optional.ofNullable(p.getActivation())
+                                .map(Activation::getProperty)
+                                .ifPresent(ap -> {
+                                    String name = ap.getName();
+                                    if (name != null) {
+                                        ap.setValue(userProperties.get(name));
+                                    }
+                                });
+                    });
+                    return m;
+                });
+
+        ActivationProperty ap = new ActivationProperty();
+        ap.setName("foo");
+
+        Activation act = new Activation();
+        act.setProperty(ap);
+        Profile profile = new Profile();
+        profile.setId("foo");
+        profile.setActivation(act);
+
+        DefaultProfileActivationContext context = new DefaultProfileActivationContext();
+        context.setUserProperties(userProperties);
+
+        List<Profile> activeProfiles = selector.getActiveProfiles(Collections.singleton(profile), context, p -> {});
+
+        assertEquals(1, activeProfiles.size());
+        assertSame(profile, activeProfiles.get(0));
+    }
+}