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- package org.apache.archiva.transaction;
-
- /*
- * 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.
- */
-
- import java.io.File;
- import java.io.IOException;
- import java.util.ArrayList;
- import java.util.List;
-
- import org.codehaus.plexus.digest.Digester;
-
- /**
- * Implement commit/rollback semantics for a set of files.
- *
- */
- public class FileTransaction
- {
- private List<AbstractTransactionEvent> events = new ArrayList<>();
-
- public void commit()
- throws TransactionException
- {
- List<TransactionEvent> toRollback = new ArrayList<TransactionEvent>( events.size() );
-
- for ( TransactionEvent event : events )
- {
- try
- {
- event.commit();
-
- toRollback.add( event );
- }
- catch ( IOException e )
- {
- try
- {
- rollback( toRollback );
-
- throw new TransactionException( "Unable to commit file transaction", e );
- }
- catch ( IOException ioe )
- {
- throw new TransactionException(
- "Unable to commit file transaction, and rollback failed with error: '" + ioe.getMessage() + "'",
- e );
- }
- }
- }
- }
-
- private void rollback( List<TransactionEvent> toRollback )
- throws IOException
- {
- for ( TransactionEvent event : toRollback )
- {
- event.rollback();
- }
- }
-
- /**
- * @param source
- * @param destination
- * @param digesters {@link List}<{@link org.codehaus.plexus.digest.Digester}> digesters to use for checksumming
- */
- public void copyFile( File source, File destination, List<? extends Digester> digesters )
- {
- events.add( new CopyFileEvent( source, destination, digesters ) );
- }
-
- /**
- * @param content
- * @param destination
- * @param digesters {@link List}<{@link org.codehaus.plexus.digest.Digester}> digesters to use for checksumming
- */
- public void createFile( String content, File destination, List<? extends Digester> digesters )
- {
- events.add( new CreateFileEvent( content, destination, digesters ) );
- }
- }
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