/*
* Copyright 2017-present Facebook, Inc.
*
* 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 com.facebook.buck.jvm.java;
import com.google.common.base.Preconditions;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.jar.Manifest;
import java.util.stream.Stream;
import javax.annotation.Nullable;
/**
* Represents a container for entries to be added to a jar file by @{link JarBuilder}. Examples
* include a directory tree or another jar file.
*/
public interface JarEntryContainer extends AutoCloseable {
static JarEntryContainer of(Path source) {
Preconditions.checkArgument(source.isAbsolute());
if (Files.isDirectory(source)) {
return new DirectoryJarEntryContainer(source);
} else if (Files.isRegularFile(source)) {
// Assume a zip or jar file.
return new ZipFileJarEntryContainer(source);
} else {
throw new IllegalStateException("Must be a file or directory: " + source);
}
}
@Nullable
Manifest getManifest() throws IOException;
Stream<JarEntrySupplier> stream() throws IOException;
@Override
void close() throws IOException;
}