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Posted to commits@sling.apache.org by si...@apache.org on 2019/06/14 15:29:56 UTC
[sling-whiteboard] 03/03: [r2f] initial checkin
This is an automated email from the ASF dual-hosted git repository.
simonetripodi pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/sling-whiteboard.git
commit 6ec82fb7fff193bb86522650ca4dd8686049f13c
Author: Simo Tripodi <st...@adobe.com>
AuthorDate: Fri Jun 14 17:29:36 2019 +0200
[r2f] initial checkin
---
runtime2feature/CODE_OF_CONDUCT.md | 22 +++
runtime2feature/CONTRIBUTING.md | 24 +++
runtime2feature/LICENSE | 201 +++++++++++++++++++++
runtime2feature/README.md | 3 +
runtime2feature/pom.xml | 73 ++++++++
.../r2f/AbstractFeatureElementConsumer.java | 35 ++++
.../sling/feature/r2f/Bundle2ArtifactMapper.java | 105 +++++++++++
.../sling/feature/r2f/ConversionRequest.java | 28 +++
.../feature/r2f/DefaultConversionRequest.java | 55 ++++++
...GiConfiguration2FeatureConfigurationMapper.java | 55 ++++++
.../r2f/RuntimeEnvironment2FeatureModel.java | 76 ++++++++
.../org/apache/sling/feature/r2f/package-info.java | 17 ++
12 files changed, 694 insertions(+)
diff --git a/runtime2feature/CODE_OF_CONDUCT.md b/runtime2feature/CODE_OF_CONDUCT.md
new file mode 100644
index 0000000..0fa18e5
--- /dev/null
+++ b/runtime2feature/CODE_OF_CONDUCT.md
@@ -0,0 +1,22 @@
+<!--/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ ~ 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.
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/-->
+Apache Software Foundation Code of Conduct
+====
+
+Being an Apache project, Apache Sling adheres to the Apache Software Foundation's [Code of Conduct](https://www.apache.org/foundation/policies/conduct.html).
diff --git a/runtime2feature/CONTRIBUTING.md b/runtime2feature/CONTRIBUTING.md
new file mode 100644
index 0000000..ac82a1a
--- /dev/null
+++ b/runtime2feature/CONTRIBUTING.md
@@ -0,0 +1,24 @@
+<!--/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ ~ 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.
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/-->
+Contributing
+====
+
+Thanks for choosing to contribute!
+
+You will find all the necessary details about how you can do this at https://sling.apache.org/contributing.html.
diff --git a/runtime2feature/LICENSE b/runtime2feature/LICENSE
new file mode 100644
index 0000000..261eeb9
--- /dev/null
+++ b/runtime2feature/LICENSE
@@ -0,0 +1,201 @@
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
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diff --git a/runtime2feature/README.md b/runtime2feature/README.md
new file mode 100644
index 0000000..48b4d0f
--- /dev/null
+++ b/runtime2feature/README.md
@@ -0,0 +1,3 @@
+[<img src="http://sling.apache.org/res/logos/sling.png"/>](http://sling.apache.org)
+
+# Apache Sling runtime to Feature Model generator
diff --git a/runtime2feature/pom.xml b/runtime2feature/pom.xml
new file mode 100644
index 0000000..fac79bc
--- /dev/null
+++ b/runtime2feature/pom.xml
@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+<!--
+ 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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+
+ <parent>
+ <groupId>org.apache.sling</groupId>
+ <artifactId>sling</artifactId>
+ <version>34</version>
+ <relativePath />
+ </parent>
+
+ <artifactId>org.apache.sling.feature.r2f</artifactId>
+ <version>0.0.1-SNAPSHOT</version>
+
+ <name>Apache Sling Feature Model runtime creator</name>
+ <description>Feature Model runtime creator tool for Apache Sling</description>
+
+ <properties>
+ <sling.java.version>8</sling.java.version>
+ <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+ </properties>
+
+ <dependencies>
+ <!--
+ | Sling Feature Model libraries
+ -->
+ <dependency>
+ <groupId>org.osgi</groupId>
+ <artifactId>osgi.core</artifactId>
+ <scope>provided</scope>
+ </dependency>
+ <dependency>
+ <groupId>org.osgi</groupId>
+ <artifactId>org.osgi.compendium</artifactId>
+ <version>5.0.0</version>
+ <scope>provided</scope>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.sling</groupId>
+ <artifactId>org.apache.sling.feature</artifactId>
+ <version>1.0.2</version>
+ <scope>provided</scope>
+ </dependency>
+
+ <!--
+ | Test only dependencies
+ -->
+ <dependency>
+ <groupId>junit</groupId>
+ <artifactId>junit</artifactId>
+ <scope>test</scope>
+ </dependency>
+ </dependencies>
+
+</project>
diff --git a/runtime2feature/src/main/java/org/apache/sling/feature/r2f/AbstractFeatureElementConsumer.java b/runtime2feature/src/main/java/org/apache/sling/feature/r2f/AbstractFeatureElementConsumer.java
new file mode 100644
index 0000000..d93eb84
--- /dev/null
+++ b/runtime2feature/src/main/java/org/apache/sling/feature/r2f/AbstractFeatureElementConsumer.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.sling.feature.r2f;
+
+import java.util.function.Consumer;
+
+import org.apache.sling.feature.Feature;
+
+abstract class AbstractFeatureElementConsumer<T> implements Consumer<T> {
+
+ private final Feature targetFeature;
+
+ public AbstractFeatureElementConsumer(Feature targetFeature) {
+ this.targetFeature = targetFeature;
+ }
+
+ protected final Feature getTargetFeature() {
+ return targetFeature;
+ }
+
+}
diff --git a/runtime2feature/src/main/java/org/apache/sling/feature/r2f/Bundle2ArtifactMapper.java b/runtime2feature/src/main/java/org/apache/sling/feature/r2f/Bundle2ArtifactMapper.java
new file mode 100644
index 0000000..2167bcc
--- /dev/null
+++ b/runtime2feature/src/main/java/org/apache/sling/feature/r2f/Bundle2ArtifactMapper.java
@@ -0,0 +1,105 @@
+/*
+ * 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.sling.feature.r2f;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.net.URLConnection;
+import java.util.Enumeration;
+import java.util.Properties;
+import java.util.function.Function;
+
+import org.apache.sling.feature.Artifact;
+import org.apache.sling.feature.ArtifactId;
+import org.apache.sling.feature.Feature;
+import org.osgi.framework.Bundle;
+import org.osgi.framework.startlevel.BundleStartLevel;
+
+final class Bundle2ArtifactMapper extends AbstractFeatureElementConsumer<Artifact> implements Function<Bundle, Artifact> {
+
+ private static final String POM_PROPERTIES_RESOURCE_NAME = "pom.properties";
+
+ private static final String MAVEN_METADATA_PATH = "META-INF/maven";
+
+ private static final String GROUP_ID = "groupId";
+
+ private static final String ARTIFACT_ID = "artifactId";
+
+ private static final String VERSION = "version";
+
+ private static final String CLASSIFIER = "classifier";
+
+ public Bundle2ArtifactMapper(Feature targetFeature) {
+ super(targetFeature);
+ }
+
+ @Override
+ public Artifact apply(Bundle bundle) {
+ Properties pomProperties = new Properties();
+
+ Enumeration<URL> pomPropertiesURLs = bundle.findEntries(MAVEN_METADATA_PATH, POM_PROPERTIES_RESOURCE_NAME, true);
+ if (pomPropertiesURLs.hasMoreElements()) {
+ URL pomPropertiesURL = pomPropertiesURLs.nextElement();
+
+ try {
+ URLConnection connection = pomPropertiesURL.openConnection();
+ connection.connect();
+
+ try (InputStream inStream = connection.getInputStream()) {
+ pomProperties.load(inStream);
+ }
+
+ if (connection instanceof HttpURLConnection) {
+ ((HttpURLConnection) connection).disconnect();
+ }
+ } catch (IOException e) {
+ throw new RuntimeException("An error occurred while reading "
+ + pomPropertiesURL
+ + " properties file from Bundle "
+ + bundle.getSymbolicName()
+ + " does not export valid Maven metadata", e);
+ }
+ }
+
+ if (pomProperties.isEmpty()) {
+ throw new RuntimeException("Bundle "
+ + bundle.getSymbolicName()
+ + " does not export valid Maven metadata");
+ }
+
+ String groupId = pomProperties.getProperty(GROUP_ID);
+ String artifactId = pomProperties.getProperty(ARTIFACT_ID);
+ String version = pomProperties.getProperty(VERSION);
+ String classifier = pomProperties.getProperty(CLASSIFIER);
+
+ Artifact artifact = new Artifact(new ArtifactId(groupId, artifactId, version, classifier, null));
+
+ BundleStartLevel bundleStartLevel = bundle.adapt(BundleStartLevel.class);
+ int startOrder = bundleStartLevel.getStartLevel();
+ artifact.setStartOrder(startOrder);
+
+ return artifact;
+ }
+
+ @Override
+ public void accept(Artifact artifact) {
+ getTargetFeature().getBundles().add(artifact);
+ }
+
+}
diff --git a/runtime2feature/src/main/java/org/apache/sling/feature/r2f/ConversionRequest.java b/runtime2feature/src/main/java/org/apache/sling/feature/r2f/ConversionRequest.java
new file mode 100644
index 0000000..f0fea30
--- /dev/null
+++ b/runtime2feature/src/main/java/org/apache/sling/feature/r2f/ConversionRequest.java
@@ -0,0 +1,28 @@
+/*
+ * 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.sling.feature.r2f;
+
+import org.apache.sling.feature.ArtifactId;
+import org.osgi.framework.BundleContext;
+
+public interface ConversionRequest {
+
+ ArtifactId getResultId();
+
+ BundleContext getBundleContext();
+
+}
diff --git a/runtime2feature/src/main/java/org/apache/sling/feature/r2f/DefaultConversionRequest.java b/runtime2feature/src/main/java/org/apache/sling/feature/r2f/DefaultConversionRequest.java
new file mode 100644
index 0000000..467aba3
--- /dev/null
+++ b/runtime2feature/src/main/java/org/apache/sling/feature/r2f/DefaultConversionRequest.java
@@ -0,0 +1,55 @@
+/*
+ * 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.sling.feature.r2f;
+
+import static java.util.Objects.requireNonNull;
+
+import org.apache.sling.feature.ArtifactId;
+import org.osgi.framework.BundleContext;
+
+public class DefaultConversionRequest implements ConversionRequest {
+
+ private ArtifactId resultId;
+
+ private BundleContext bundleContext;
+
+ @Override
+ public ArtifactId getResultId() {
+ return resultId;
+ }
+
+ public DefaultConversionRequest setResultId(String resultId) {
+ resultId = requireNonNull(resultId, "Impossible to create the Feature diff with a null id");
+ return setResultId(ArtifactId.parse(resultId));
+ }
+
+ public DefaultConversionRequest setResultId(ArtifactId resultId) {
+ this.resultId = requireNonNull(resultId, "Impossible to create the Feature diff with a null id");
+ return this;
+ }
+
+ @Override
+ public BundleContext getBundleContext() {
+ return bundleContext;
+ }
+
+ public DefaultConversionRequest setBundleContext(BundleContext bundleContext) {
+ this.bundleContext = requireNonNull(bundleContext, "Impossible to create the Feature from a null BundleContext");
+ return this;
+ }
+
+}
diff --git a/runtime2feature/src/main/java/org/apache/sling/feature/r2f/OSGiConfiguration2FeatureConfigurationMapper.java b/runtime2feature/src/main/java/org/apache/sling/feature/r2f/OSGiConfiguration2FeatureConfigurationMapper.java
new file mode 100644
index 0000000..19dadf9
--- /dev/null
+++ b/runtime2feature/src/main/java/org/apache/sling/feature/r2f/OSGiConfiguration2FeatureConfigurationMapper.java
@@ -0,0 +1,55 @@
+/*
+ * 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.sling.feature.r2f;
+
+import java.util.Dictionary;
+import java.util.Enumeration;
+import java.util.function.Function;
+
+import org.apache.sling.feature.Configuration;
+import org.apache.sling.feature.Feature;
+
+final class OSGiConfiguration2FeatureConfigurationMapper
+ extends AbstractFeatureElementConsumer<Configuration>
+ implements Function<org.osgi.service.cm.Configuration, Configuration> {
+
+ public OSGiConfiguration2FeatureConfigurationMapper(Feature targetFeature) {
+ super(targetFeature);
+ }
+
+ @Override
+ public Configuration apply(org.osgi.service.cm.Configuration sourceConfiguration) {
+ Configuration targetConfiguration = new Configuration(sourceConfiguration.getPid());
+
+ Dictionary<String, Object> configurationProperties = sourceConfiguration.getProperties();
+ Enumeration<String> keys = configurationProperties.keys();
+ while (keys.hasMoreElements()) {
+ String key = keys.nextElement();
+ Object value = configurationProperties.get(key);
+
+ targetConfiguration.getProperties().put(key, value);
+ }
+
+ return targetConfiguration;
+ }
+
+ @Override
+ public void accept(Configuration configuration) {
+ getTargetFeature().getConfigurations().add(configuration);
+ }
+
+}
diff --git a/runtime2feature/src/main/java/org/apache/sling/feature/r2f/RuntimeEnvironment2FeatureModel.java b/runtime2feature/src/main/java/org/apache/sling/feature/r2f/RuntimeEnvironment2FeatureModel.java
new file mode 100644
index 0000000..5f024e5
--- /dev/null
+++ b/runtime2feature/src/main/java/org/apache/sling/feature/r2f/RuntimeEnvironment2FeatureModel.java
@@ -0,0 +1,76 @@
+/*
+ * 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.sling.feature.r2f;
+
+import static java.util.Objects.requireNonNull;
+
+import java.util.stream.Stream;
+
+import org.apache.sling.feature.ArtifactId;
+import org.apache.sling.feature.Feature;
+import org.osgi.framework.Bundle;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.ServiceReference;
+import org.osgi.service.cm.Configuration;
+import org.osgi.service.cm.ConfigurationAdmin;
+
+public final class RuntimeEnvironment2FeatureModel {
+
+ public static Feature scanAndAssemble(ConversionRequest conversionRequest) {
+ ArtifactId resultId = requireNonNull(conversionRequest.getResultId(), "Impossible to create the Feature with a null id");
+ BundleContext bundleContext = requireNonNull(conversionRequest.getBundleContext(), "Impossible to create the Feature from a null BundleContext");
+
+ Feature targetFeature = new Feature(resultId);
+
+ // collect all bundles
+
+ Bundle[] bundles = bundleContext.getBundles();
+ if (bundles != null) {
+ Bundle2ArtifactMapper mapper = new Bundle2ArtifactMapper(targetFeature);
+
+ Stream.of(bundles).map(mapper).forEach(mapper);
+ }
+
+ // collect all configurations
+
+ ServiceReference<ConfigurationAdmin> configurationAdminReference = bundleContext.getServiceReference(ConfigurationAdmin.class);
+ if (configurationAdminReference != null) {
+ ConfigurationAdmin configurationAdmin = bundleContext.getService(configurationAdminReference);
+ try {
+ Configuration[] configurations = configurationAdmin.listConfigurations(null);
+ if (configurations != null) {
+ OSGiConfiguration2FeatureConfigurationMapper mapper = new OSGiConfiguration2FeatureConfigurationMapper(targetFeature);
+
+ Stream.of(configurations).map(mapper).forEach(mapper);
+ }
+ } catch (Exception e) {
+ // that should not happen
+ throw new RuntimeException("Something went wrong while iterating over all available Configurations", e);
+ }
+ }
+
+ return targetFeature;
+ }
+
+ /**
+ * This class must not be instantiated from outside.
+ */
+ private RuntimeEnvironment2FeatureModel() {
+ // do nothing
+ }
+
+}
diff --git a/runtime2feature/src/main/java/org/apache/sling/feature/r2f/package-info.java b/runtime2feature/src/main/java/org/apache/sling/feature/r2f/package-info.java
new file mode 100644
index 0000000..15549c4
--- /dev/null
+++ b/runtime2feature/src/main/java/org/apache/sling/feature/r2f/package-info.java
@@ -0,0 +1,17 @@
+/*
+ * 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.sling.feature.r2f;