com.alipay.sofa.ark.loader.jar.FileHeader Maven / Gradle / Ivy
/*
* 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 com.alipay.sofa.ark.loader.jar;
import java.util.zip.ZipEntry;
/**
* A file header record that has been loaded from a Jar file.
*
* @author Phillip Webb
* @see JarEntry
* @see CentralDirectoryFileHeader
*/
interface FileHeader {
/**
* Returns {@code true} if the header has the given name.
* @param name the name to test
* @param suffix an additional suffix (or {@code null})
* @return {@code true} if the header has the given name
*/
boolean hasName(String name, String suffix);
/**
* Return the offset of the load file header within the archive data.
* @return the local header offset
*/
long getLocalHeaderOffset();
/**
* Return the compressed size of the entry.
* @return the compressed size.
*/
long getCompressedSize();
/**
* Return the uncompressed size of the entry.
* @return the uncompressed size.
*/
long getSize();
/**
* Return the method used to compress the data.
* @return the zip compression method
* @see ZipEntry#STORED
* @see ZipEntry#DEFLATED
*/
int getMethod();
}