Java Zip File Check isZipFile(String fileName)

Description

is Zip File

License

Apache License

Declaration

static public boolean isZipFile(String fileName) 

Method Source Code

//package com.java2s;
/*//w w  w. j  av a 2  s. c om
 *  Copyright 2015 the original author or authors. 
 *  @https://github.com/scouter-project/scouter
 *
 *  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.
 *
 */

import java.io.File;
import java.io.FileInputStream;

import java.io.InputStream;

public class Main {
    static public boolean isZipFile(String fileName) {
        if (fileName == null) {
            return false;
        }
        File file = new File(fileName);
        if (!file.exists() || !file.isFile()) {
            return false;
        }
        InputStream in = null;
        try {
            in = new FileInputStream(file);
            byte[] data = new byte[2];
            in.read(data);
            if (data[0] == 0x50 && data[1] == 0x4b) {
                return true;
            }
        } catch (Exception ex) {
            return false;
        } finally {
            if (in != null) {
                try {
                    in.close();
                } catch (Exception e) {
                }
            }
        }
        return false;
    }
}

Related

1. isZipFile(File file)
2. isZipFile(File file)
3. isZipFile(InputStream stream)
4. isZipFile(java.io.File file)
5. isZipFile(String fileName)
6. isZipFile(String path)
7. isZipOrJarArchive(File file)
8. isZipped(File f)
9. isZipped(File file)