Resolves #880: add information on property updates to the change recorder

versions-api/src/main/java/org/codehaus/mojo/versions/api/change/DependencyVersionChange.java

@@ -0,0 +1,50 @@
+package org.codehaus.mojo.versions.api.change;
+
+/*
+ * Copyright MojoHaus and Contributors
+ *
+ * Licensed 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.
+ *
+ */
+
+/**
+ * Represents a change of an item's version.
+ *
+ * @author Slawomir Jaranowski
+ * @since 2.14.0
+ */
+public interface DependencyVersionChange extends VersionChange {
+    /**
+     * @return a groupId of changed item
+     * @since 2.14.0
+     */
+    String getGroupId();
+
+    /**
+     * @return an ArtifactId of change item
+     * @since 2.14.0
+     */
+    String getArtifactId();
+
+    /**
+     * @return an old version of changed item
+     * @since 2.14.0
+     */
+    String getOldVersion();
+
+    /**
+     * @return a new version of changed item
+     * @since 2.14.0
+     */
+    String getNewVersion();
+}

versions-api/src/main/java/org/codehaus/mojo/versions/api/change/PropertyVersionChange.java

@@ -0,0 +1,42 @@
+package org.codehaus.mojo.versions.api.change;
+
+/*
+ * Copyright MojoHaus and Contributors
+ *
+ * Licensed 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.
+ *
+ */
+
+/**
+ * Represents a change of a property value.
+ *
+ * @author Andrzej Jarmoniuk
+ * @since 2.15.0
+ */
+public interface PropertyVersionChange extends VersionChange {
+
+    /**
+     * @return the property that has changed
+     */
+    String getProperty();
+
+    /**
+     * @return the old value of the property
+     */
+    String getOldValue();
+
+    /**
+     * @return the new value of the property
+     */
+    String getNewValue();
+}

versions-api/src/main/java/org/codehaus/mojo/versions/api/change/VersionChange.java

@@ -14,37 +14,9 @@
  * 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.
- *
  */
 
 /**
- * Represents a change of an item's version.
- *
- * @author Slawomir Jaranowski
- * @since 2.14.0
+ * Base class for version changes
  */
-public interface VersionChange {
-    /**
-     * @return a groupId of changed item
-     * @since 2.14.0
-     */
-    String getGroupId();
-
-    /**
-     * @return an ArtifactId of change item
-     * @since 2.14.0
-     */
-    String getArtifactId();
-
-    /**
-     * @return an old version of changed item
-     * @since 2.14.0
-     */
-    String getOldVersion();
-
-    /**
-     * @return a new version of changed item
-     * @since 2.14.0
-     */
-    String getNewVersion();
-}
+public interface VersionChange {}

versions-api/src/main/java/org/codehaus/mojo/versions/api/recording/ChangeRecord.java

@@ -24,39 +24,12 @@
  *
  * @author Slawomir Jaranowski
  * @since 2.14.0
+ * @param <T> concrete {@link VersionChange} sub-interface
  */
-public interface ChangeRecord {
-    /**
-     * Describe where version item is updated.
-     */
-    enum ChangeKind {
-        DEPENDENCY("dependency-update"),
-        DEPENDENCY_MANAGEMENT("dependency-management-update"),
-        PARENT("parent-update"),
-        PLUGIN("plugin-update"),
-        PLUGIN_MANAGEMENT("plugin-management-update"),
-        PROPERTY("property-update");
-
-        private final String label;
-
-        ChangeKind(String label) {
-            this.label = label;
-        }
-
-        public String getLabel() {
-            return label;
-        }
-    }
-
-    /**
-     * @return a version item change kind
-     * @since 2.14.0
-     */
-    ChangeKind getKind();
-
+public interface ChangeRecord<T extends VersionChange> {
     /**
      * @return a details about changed item
      * @since 2.14.0
      */
-    VersionChange getVersionChange();
+    T getVersionChange();
 }

versions-api/src/main/java/org/codehaus/mojo/versions/api/recording/ChangeRecorder.java

@@ -30,10 +30,18 @@ public interface ChangeRecorder {
     /**
      * Record that a dependency was updated.
      *
-     * @param changeRecord a record described change
+     * @param changeRecord a dependency record described change
      * @since 2.14.0
      */
-    void recordChange(ChangeRecord changeRecord);
+    void recordChange(DependencyChangeRecord changeRecord);
+
+    /**
+     * Record that a property was updated.
+     *
+     * @param changeRecord a property record described change
+     * @since 2.14.0
+     */
+    void recordChange(PropertyChangeRecord changeRecord);
 
     /**
      * Write the current set of changes to the given output path.

versions-api/src/main/java/org/codehaus/mojo/versions/api/recording/DependencyChangeRecord.java

@@ -0,0 +1,56 @@
+package org.codehaus.mojo.versions.api.recording;
+
+/*
+ * Copyright MojoHaus and Contributors
+ *
+ * Licensed 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.codehaus.mojo.versions.api.change.DependencyVersionChange;
+
+/**
+ * Represents a change record of an item's version.
+ *
+ * @author Slawomir Jaranowski
+ * @since 2.14.0
+ */
+public interface DependencyChangeRecord extends ChangeRecord<DependencyVersionChange> {
+    /**
+     * Describe where version item is updated.
+     */
+    enum ChangeKind {
+        DEPENDENCY("dependency-update"),
+        DEPENDENCY_MANAGEMENT("dependency-management-update"),
+        PARENT("parent-update"),
+        PLUGIN("plugin-update"),
+        PLUGIN_MANAGEMENT("plugin-management-update"),
+        PROPERTY("property-update");
+
+        private final String label;
+
+        ChangeKind(String label) {
+            this.label = label;
+        }
+
+        public String getLabel() {
+            return label;
+        }
+    }
+
+    /**
+     * @return a version item change kind
+     * @since 2.14.0
+     */
+    ChangeKind getKind();
+}

versions-api/src/main/java/org/codehaus/mojo/versions/api/recording/PropertyChangeRecord.java

@@ -0,0 +1,28 @@
+package org.codehaus.mojo.versions.api.recording;
+
+/*
+ * Copyright MojoHaus and Contributors
+ *
+ * Licensed 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.codehaus.mojo.versions.api.change.PropertyVersionChange;
+
+/**
+ * Represents a change record of an item's version.
+ *
+ * @author Slawomir Jaranowski
+ * @since 2.14.0
+ */
+public interface PropertyChangeRecord extends ChangeRecord<PropertyVersionChange> {}

versions-api/src/site/markdown/change-recorder.md.vm

@@ -11,26 +11,31 @@ Write code
 ----------
 
 ```java
+import java.io.IOException;
 import javax.inject.Named;
 
 import java.nio.file.Path;
 
-import org.codehaus.mojo.versions.api.recording.ChangeRecord;
+import org.codehaus.mojo.versions.api.recording.DependencyChangeRecord;
+import org.codehaus.mojo.versions.api.recording.PropertyChangeRecord;
 import org.codehaus.mojo.versions.api.recording.ChangeRecorder;
 
-@Named( "my-recorder" )
-public class MyChangeRecorder implements ChangeRecorder
-{
+@Named("my-recorder")
+public class MyChangeRecorder implements ChangeRecorder {
+
+    @Override
+    public final void recordChange(DependencyChangeRecord changeRecord) {
+        // your code here
+    }
+
     @Override
-    public final void recordChange( ChangeRecord changeRecord )
-    {
-        // your code
+    public final void recordChange(PropertyChangeRecord changeRecord) {
+        // your code here
     }
 
     @Override
-    public final void writeReport( Path outputPath )
-    {
-        // your code
+    public final void writeReport(Path outputPath) throws IOException {
+        // your code here
     }
 }
 ```

versions-common/src/main/java/org/codehaus/mojo/versions/change/CompositeVersionChanger.java

@@ -1,22 +1,18 @@
 package org.codehaus.mojo.versions.change;
 
 /*
- * 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
+ * Copyright MojoHaus and Contributors
+ * Licensed 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
+ *    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.
+ * 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 javax.xml.stream.XMLStreamException;
@@ -25,7 +21,7 @@
 import java.util.Arrays;
 import java.util.List;
 
-import org.codehaus.mojo.versions.api.change.VersionChange;
+import org.codehaus.mojo.versions.api.change.DependencyVersionChange;
 
 /**
  * Created by IntelliJ IDEA.
@@ -44,7 +40,7 @@ public CompositeVersionChanger(List<VersionChanger> composites) {
         this.composites = new ArrayList<>(composites);
     }
 
-    public void apply(VersionChange versionChange) throws XMLStreamException {
+    public void apply(DependencyVersionChange versionChange) throws XMLStreamException {
         for (VersionChanger delegate : composites) {
             delegate.apply(versionChange);
         }