[MNG-8084] Move ModelBuilder and resolver provider to v4 api

api/maven-api-core/src/main/java/org/apache/maven/api/Lifecycle.java

@@ -0,0 +1,73 @@
+/*
+ * 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.api;
+
+import java.util.*;
+
+import org.apache.maven.api.annotations.Experimental;
+import org.apache.maven.api.annotations.Immutable;
+import org.apache.maven.api.model.Plugin;
+
+/**
+ * Lifecycle definition
+ *
+ * @since 4.0.0
+ */
+@Experimental
+@Immutable
+public interface Lifecycle extends ExtensibleEnum {
+
+    String CLEAN = "clean";
+
+    String DEFAULT = "default";
+
+    String SITE = "site";
+
+    String WRAPPER = "wrapper";
+
+    /**
+     * Name or identifier of this lifecycle.
+     *
+     * @return the unique identifier for this lifecycle
+     */
+    @Override
+    String id();
+
+    /**
+     * Collection of phases for this lifecycle
+     */
+    Collection<Phase> phases();
+
+    /**
+     * Pre-ordered list of phases.
+     * If not provided, a default order will be computed.
+     */
+    default Optional<List<String>> orderedPhases() {
+        return Optional.empty();
+    }
+
+    /**
+     * A phase in the lifecycle.
+     */
+    interface Phase {
+        String name();
+
+        List<Plugin> plugins();
+    }
+}

api/maven-api-core/src/main/java/org/apache/maven/api/Packaging.java

@@ -18,6 +18,8 @@
  */
 package org.apache.maven.api;
 
+import java.util.Map;
+
 import org.apache.maven.api.annotations.Experimental;
 import org.apache.maven.api.annotations.Immutable;
 import org.apache.maven.api.annotations.Nonnull;
@@ -55,9 +57,9 @@ default Language language() {
     Type type();
 
     /**
-     * Returns the binding to use specifically for this packaging.
-     * This will be merged to the default packaging definition.
+     * Returns the binding to use specifically for this packaging keyed by lifecycle id.
+     * This will be used instead of the default packaging definition.
      */
     @Nonnull
-    PluginContainer plugins();
+    Map<String, PluginContainer> plugins();
 }

api/maven-api-core/src/main/java/org/apache/maven/api/PathScope.java

@@ -46,6 +46,7 @@
 @Immutable
 public interface PathScope extends ExtensibleEnum {
 
+    // TODO: what if I simply want all dependencies ?
     @Nonnull
     ProjectScope projectScope();
 

api/maven-api-core/src/main/java/org/apache/maven/api/plugin/annotations/Execute.java

@@ -41,21 +41,10 @@
 public @interface Execute {
     /**
      * Lifecycle phase to fork. Note that specifying a phase overrides specifying a goal.
-     * For custom lifecycle phase ids use {@link #customPhase()} instead.
-     * Only one of {@link #customPhase()} and {@link #phase()} must be set.
      * @return the phase
      */
     @Nonnull
-    LifecyclePhase phase() default LifecyclePhase.NONE;
-
-    /**
-     * Custom lifecycle phase to fork. Note that specifying a phase overrides specifying a goal.
-     * This element should only be used for non-standard phases. For standard phases rather use {@link #phase()}.
-     * Only one of {@link #customPhase()} and {@link #phase()} must be set.
-     * @return the custom phase id
-     */
-    @Nonnull
-    String customPhase() default "";
+    String phase() default "";
 
     /**
      * Goal to fork. Note that specifying a phase overrides specifying a goal. The specified <code>goal</code> must be

api/maven-api-core/src/main/java/org/apache/maven/api/plugin/annotations/Mojo.java

@@ -54,7 +54,7 @@
      * @return the default phase
      */
     @Nonnull
-    LifecyclePhase defaultPhase() default LifecyclePhase.NONE;
+    String defaultPhase() default "";
 
     /**
      * does your mojo requires a project to be executed?

api/maven-api-core/src/main/java/org/apache/maven/api/services/LifecycleRegistry.java

@@ -0,0 +1,33 @@
+/*
+ * 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.api.services;
+
+import java.util.List;
+import java.util.stream.Stream;
+import java.util.stream.StreamSupport;
+
+import org.apache.maven.api.Lifecycle;
+
+public interface LifecycleRegistry extends ExtensibleEnumRegistry<Lifecycle>, Iterable<Lifecycle> {
+    default Stream<Lifecycle> stream() {
+        return StreamSupport.stream(spliterator(), false);
+    }
+
+    List<String> computePhases(Lifecycle lifecycle);
+}

api/maven-api-core/src/main/java/org/apache/maven/api/services/ModelBuilder.java

@@ -0,0 +1,35 @@
+/*
+ * 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.api.services;
+
+import java.util.List;
+
+import org.apache.maven.api.Service;
+import org.apache.maven.api.model.Model;
+
+public interface ModelBuilder extends Service {
+
+    List<String> VALID_MODEL_VERSIONS = List.of("4.0.0", "4.1.0");
+
+    ModelBuilderResult build(ModelBuilderRequest request) throws ModelBuilderException;
+
+    ModelTransformerContextBuilder newTransformerContextBuilder();
+
+    Model buildRawModel(ModelBuilderRequest request);
+}

api/maven-api-core/src/main/java/org/apache/maven/api/services/ModelBuilderException.java

@@ -0,0 +1,80 @@
+/*
+ * 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.api.services;
+
+import java.util.Collections;
+import java.util.List;
+
+import org.apache.maven.api.annotations.Experimental;
+
+/**
+ * The Exception class throw by the {@link ProjectBuilder} service.
+ *
+ * @since 4.0.0
+ */
+@Experimental
+public class ModelBuilderException extends MavenException {
+
+    private final ModelBuilderResult result;
+
+    /**
+     * Creates a new exception from the specified interim result and its associated problems.
+     *
+     * @param result The interim result, may be {@code null}.
+     */
+    public ModelBuilderException(ModelBuilderResult result) {
+        super(result.toString());
+        this.result = result;
+    }
+
+    /**
+     * Gets the interim result of the model building up to the point where it failed.
+     *
+     * @return The interim model building result or {@code null} if not available.
+     */
+    public ModelBuilderResult getResult() {
+        return result;
+    }
+
+    /**
+     * Gets the identifier of the POM whose effective model could not be built. The general format of the identifier is
+     * {@code <groupId>:<artifactId>:<version>} but some of these coordinates may still be unknown at the point the
+     * exception is thrown so this information is merely meant to assist the user.
+     *
+     * @return The identifier of the POM or an empty string if not known, never {@code null}.
+     */
+    public String getModelId() {
+        if (result == null || result.getModelIds().isEmpty()) {
+            return "";
+        }
+        return result.getModelIds().get(0);
+    }
+
+    /**
+     * Gets the problems that caused this exception.
+     *
+     * @return The problems that caused this exception, never {@code null}.
+     */
+    public List<ModelProblem> getProblems() {
+        if (result == null) {
+            return Collections.emptyList();
+        }
+        return Collections.unmodifiableList(result.getProblems());
+    }
+}