/*
* JBoss, Home of Professional Open Source
* Copyright 2009, Red Hat Middleware LLC, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual 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.
*/
package org.jboss.shrinkwrap.api.exporter;
import java.io.File;
import java.io.InputStream;
import java.io.OutputStream;
import org.jboss.shrinkwrap.api.Assignable;
/**
* Generic exporter capable of representing an {@link Assignable} as an {@link InputStream}, or writing its contents to
* a provided {@link OutputStream} or {@link File}.
*
* @author <a href="mailto:andrew.rubinger@jboss.org">ALR</a>
* @version $Revision: $
*/
public interface StreamExporter extends Assignable {
// -------------------------------------------------------------------------------------||
// Contracts --------------------------------------------------------------------------||
// -------------------------------------------------------------------------------------||
/**
* Exports this reference in an implementation-specific format represented by the returned new {@link InputStream}
* instance
*
* @return A new {@link InputStream} to read the exported view
*/
InputStream exportAsInputStream();
/**
* Exports provided archive in an implementation-specific format, written to the specified {@link OutputStream}
* target. The specified target will not be closed or flushed; this is the responsibility of the caller (who
* supplied the {@link OutputStream} in the first place).
*
* @param target
* @throws ArchiveExportException
* @throws IllegalArgumentException
* If the target is not specified or is closed
*/
void exportTo(OutputStream target) throws ArchiveExportException, IllegalArgumentException;
/**
* Exports provided archive as in an implementation-specific format, written to the specified {@link File} target.
* If the target exists this call will fail with {@link IllegalArgumentException}
*
* @param target
* @throws IllegalArgumentException
* If the target is not specified
* @throws FileExistsException
* If the target already exists
* @throws ArchiveExportException
* if the export process fails
*/
void exportTo(File target) throws ArchiveExportException, FileExistsException;
/**
* Exports provided archive an implementation-specific format, written to the specified {@link File} target. If the
* target both exists and the "overwrite" flag is true, this call will allow the existing file to be overwritten,
* else the invocation will fail with {@link IllegalArgumentException}
*
* @param target
* @throws IllegalArgumentException
* If the target is not specified or is a directory
* @throws FileExistsException
* If the target both already exists and the overwrite flag is false
* @throws ArchiveExportException
* if the export process fails
*/
void exportTo(File target, boolean overwrite) throws ArchiveExportException, FileExistsException;
}