HDDS-12278. Fix license headers and imports for ozone-filesystem

hadoop-ozone/ozonefs/pom.xml

@@ -107,13 +107,6 @@
           </execution>
         </executions>
       </plugin>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-checkstyle-plugin</artifactId>
-        <configuration>
-          <suppressionsLocation>${basedir}/../../hadoop-hdds/dev-support/checkstyle/suppressions-skip-imports.xml</suppressionsLocation>
-        </configuration>
-      </plugin>
     </plugins>
   </build>
 </project>

hadoop-ozone/ozonefs/src/main/java/org/apache/hadoop/fs/ozone/OzFs.java

@@ -1,13 +1,12 @@
-/**
- * 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
+/*
+ * 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
+ *      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,
@@ -21,7 +20,6 @@
 import java.io.IOException;
 import java.net.URI;
 import java.net.URISyntaxException;
-
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.DelegateToFileSystem;
 import org.apache.hadoop.hdds.annotation.InterfaceAudience;

hadoop-ozone/ozonefs/src/main/java/org/apache/hadoop/fs/ozone/OzoneFileSystem.java

@@ -1,13 +1,12 @@
 /*
- * 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
+ * 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
+ *      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,
@@ -18,12 +17,13 @@
 
 package org.apache.hadoop.fs.ozone;
 
+import static org.apache.hadoop.ozone.OzoneConsts.FORCE_LEASE_RECOVERY_ENV;
+
+import com.google.common.base.Strings;
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.URI;
 import java.util.List;
-
-import com.google.common.base.Strings;
 import org.apache.hadoop.crypto.key.KeyProvider;
 import org.apache.hadoop.crypto.key.KeyProviderTokenIssuer;
 import org.apache.hadoop.fs.FileSystem;
@@ -41,8 +41,6 @@
 import org.apache.hadoop.ozone.om.helpers.OmKeyLocationInfo;
 import org.apache.hadoop.security.token.DelegationTokenIssuer;
 
-import static org.apache.hadoop.ozone.OzoneConsts.FORCE_LEASE_RECOVERY_ENV;
-
 /**
  * The Ozone Filesystem implementation.
  * <p>

hadoop-ozone/ozonefs/src/main/java/org/apache/hadoop/fs/ozone/PosixOzoneFileSystem.java

@@ -1,13 +1,12 @@
 /*
- * 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
+ * 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
+ *      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,
@@ -18,11 +17,11 @@
 
 package org.apache.hadoop.fs.ozone;
 
+import java.io.IOException;
 import org.apache.hadoop.fs.FSDataOutputStream;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.fs.permission.FsPermission;
 import org.apache.hadoop.util.Progressable;
-import java.io.IOException;
 
 /**
  * The PosixOzoneFileSystem implementation.
@@ -32,7 +31,6 @@
  * closes it and again calls the create function
  * of super class.
  */
-
 public class PosixOzoneFileSystem extends OzoneFileSystem {
   @Override
   public FSDataOutputStream create(Path f, FsPermission permission,

hadoop-ozone/ozonefs/src/main/java/org/apache/hadoop/fs/ozone/PosixRootedOzoneFileSystem.java

@@ -1,13 +1,12 @@
 /*
- * 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
+ * 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
+ *      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,
@@ -18,13 +17,12 @@
 
 package org.apache.hadoop.fs.ozone;
 
+import java.io.IOException;
 import org.apache.hadoop.fs.FSDataOutputStream;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.fs.permission.FsPermission;
 import org.apache.hadoop.util.Progressable;
 
-import java.io.IOException;
-
 /**
  * The PosixRootedOzoneFileSystem implementation.
  * The create function in this class overrides
@@ -33,7 +31,6 @@
  * closes it and again calls the create function
  * of super class.
  */
-
 public class PosixRootedOzoneFileSystem extends RootedOzoneFileSystem {
 
   @Override

hadoop-ozone/ozonefs/src/main/java/org/apache/hadoop/fs/ozone/RootedOzFs.java

@@ -1,13 +1,12 @@
-/**
- * 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
+/*
+ * 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
+ *      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,
@@ -21,7 +20,6 @@
 import java.io.IOException;
 import java.net.URI;
 import java.net.URISyntaxException;
-
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.DelegateToFileSystem;
 import org.apache.hadoop.hdds.annotation.InterfaceAudience;

hadoop-ozone/ozonefs/src/main/java/org/apache/hadoop/fs/ozone/RootedOzoneFileSystem.java

@@ -1,13 +1,12 @@
 /*
- * 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
+ * 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
+ *      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,
@@ -18,8 +17,14 @@
 
 package org.apache.hadoop.fs.ozone;
 
+import static org.apache.hadoop.ozone.OzoneConsts.FORCE_LEASE_RECOVERY_ENV;
+
 import com.google.common.base.Strings;
 import io.opentracing.util.GlobalTracer;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URI;
+import java.util.List;
 import org.apache.hadoop.crypto.key.KeyProvider;
 import org.apache.hadoop.crypto.key.KeyProviderTokenIssuer;
 import org.apache.hadoop.fs.FileSystem;
@@ -38,13 +43,6 @@
 import org.apache.hadoop.ozone.om.helpers.OmKeyLocationInfo;
 import org.apache.hadoop.security.token.DelegationTokenIssuer;
 
-import java.io.IOException;
-import java.io.InputStream;
-import java.net.URI;
-import java.util.List;
-
-import static org.apache.hadoop.ozone.OzoneConsts.FORCE_LEASE_RECOVERY_ENV;
-
 /**
  * The Rooted Ozone Filesystem (OFS) implementation.
  * <p>

hadoop-ozone/ozonefs/src/main/java/org/apache/hadoop/fs/ozone/package-info.java

@@ -1,20 +1,18 @@
 /*
- * 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
+ * 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
+ *      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.
- *
  */
 
 /**