/*
    * 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.codehaus.plexus.archiver.diags;
  
  import javax.annotation.Nonnull;
  
  import java.io.File;
  import java.io.IOException;
  import java.nio.charset.Charset;
  
  import org.codehaus.plexus.archiver.ArchivedFileSet;
  import org.codehaus.plexus.archiver.Archiver;
  import org.codehaus.plexus.archiver.ArchiverException;
  import org.codehaus.plexus.archiver.FileSet;
  import org.codehaus.plexus.components.io.resources.PlexusIoResource;
  import org.codehaus.plexus.components.io.resources.PlexusIoResourceCollection;
  import org.slf4j.Logger;
  
  /**
   * A dry run archiver that does nothing. Some methods fall through to the underlying
   * archiver, but no actions are executed.
   */
  public class DryRunArchiver extends DelgatingArchiver {
  
      private final Logger logger;
  
      public DryRunArchiver(final Archiver target, final Logger logger) {
          super(target);
          this.logger = logger;
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public void addArchivedFileSet(
              final @Nonnull File archiveFile, final String prefix, final String[] includes, final String[] excludes) {
          debug("DRY RUN: Skipping delegated call to: " + getMethodName());
      }
  
      private void debug(final String message) {
          if ((logger != null) && logger.isDebugEnabled()) {
              logger.debug(message);
          }
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public void addArchivedFileSet(final @Nonnull File archiveFile, final String prefix) throws ArchiverException {
          debug("DRY RUN: Skipping delegated call to: " + getMethodName());
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public void addArchivedFileSet(final File archiveFile, final String[] includes, final String[] excludes)
              throws ArchiverException {
          debug("DRY RUN: Skipping delegated call to: " + getMethodName());
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public void addArchivedFileSet(final @Nonnull File archiveFile) throws ArchiverException {
          debug("DRY RUN: Skipping delegated call to: " + getMethodName());
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public void addDirectory(
              final @Nonnull File directory, final String prefix, final String[] includes, final String[] excludes)
              throws ArchiverException {
          debug("DRY RUN: Skipping delegated call to: " + getMethodName());
      }
  
      /**
       * {@inheritDoc}
      */
     @Override
     public void addSymlink(String symlinkName, String symlinkDestination) throws ArchiverException {
         debug("DRY RUN: Skipping delegated call to: " + getMethodName());
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public void addSymlink(String symlinkName, int permissions, String symlinkDestination) throws ArchiverException {
         debug("DRY RUN: Skipping delegated call to: " + getMethodName());
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public void addDirectory(final @Nonnull File directory, final String prefix) throws ArchiverException {
         debug("DRY RUN: Skipping delegated call to: " + getMethodName());
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public void addDirectory(final @Nonnull File directory, final String[] includes, final String[] excludes)
             throws ArchiverException {
         debug("DRY RUN: Skipping delegated call to: " + getMethodName());
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public void addDirectory(final @Nonnull File directory) throws ArchiverException {
         debug("DRY RUN: Skipping delegated call to: " + getMethodName());
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public void addFile(final @Nonnull File inputFile, final @Nonnull String destFileName, final int permissions)
             throws ArchiverException {
         debug("DRY RUN: Skipping delegated call to: " + getMethodName());
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public void addFile(final @Nonnull File inputFile, final @Nonnull String destFileName) throws ArchiverException {
         debug("DRY RUN: Skipping delegated call to: " + getMethodName());
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public void createArchive() throws ArchiverException, IOException {
         debug("DRY RUN: Skipping delegated call to: " + getMethodName());
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public void setDotFileDirectory(final File dotFileDirectory) {
         throw new UnsupportedOperationException("Undocumented feature of plexus-archiver; this is not yet supported.");
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public void addArchivedFileSet(final ArchivedFileSet fileSet) throws ArchiverException {
 
         debug("DRY RUN: Skipping delegated call to: " + getMethodName());
     }
 
     @Override
     public void addArchivedFileSet(ArchivedFileSet fileSet, Charset charset) throws ArchiverException {
         debug("DRY RUN: Skipping delegated call to: " + getMethodName());
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public void addFileSet(final @Nonnull FileSet fileSet) throws ArchiverException {
         debug("DRY RUN: Skipping delegated call to: " + getMethodName());
     }
 
     @Override
     public void addResource(PlexusIoResource resource, String destFileName, int permissions) throws ArchiverException {
         debug("DRY RUN: Skipping delegated call to: " + getMethodName());
     }
 
     @Override
     public void addResources(PlexusIoResourceCollection resources) throws ArchiverException {
         debug("DRY RUN: Skipping delegated call to: " + getMethodName());
     }
 
     private String getMethodName() {
         final NullPointerException npe = new NullPointerException();
         final StackTraceElement[] trace = npe.getStackTrace();
         final StackTraceElement methodElement = trace[1];
         return methodElement.getMethodName() + " (archiver line: " + methodElement.getLineNumber() + ")";
     }
 }