Java Code Examples for net.lingala.zip4j.model.enums.CompressionMethod#DEFLATE

The following examples show how to use net.lingala.zip4j.model.enums.CompressionMethod#DEFLATE . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: ZipVersionUtils.java    From zip4j with Apache License 2.0 6 votes vote down vote up 
public static VersionNeededToExtract determineVersionNeededToExtract(ZipParameters zipParameters) {
  VersionNeededToExtract versionRequired = VersionNeededToExtract.DEFAULT;

  if (zipParameters.getCompressionMethod() == CompressionMethod.DEFLATE) {
    versionRequired = VersionNeededToExtract.DEFLATE_COMPRESSED;
  }

  if (zipParameters.getEntrySize() > InternalZipConstants.ZIP_64_SIZE_LIMIT) {
    versionRequired = VersionNeededToExtract.ZIP_64_FORMAT;
  }

  if (zipParameters.isEncryptFiles() && zipParameters.getEncryptionMethod().equals(EncryptionMethod.AES)) {
    versionRequired = VersionNeededToExtract.AES_ENCRYPTED;
  }

  return versionRequired;
}
Example 2
Source File: AESExtraDataRecord.java    From zip4j with Apache License 2.0 5 votes vote down vote up 
public AESExtraDataRecord() {
  setSignature(HeaderSignature.AES_EXTRA_DATA_RECORD);
  dataSize = 7;
  aesVersion = AesVersion.TWO;
  vendorID = "AE";
  aesKeyStrength = AesKeyStrength.KEY_STRENGTH_256;
  compressionMethod = CompressionMethod.DEFLATE;
}
Example 3
Source File: ZipInputStream.java    From zip4j with Apache License 2.0 5 votes vote down vote up 
private DecompressedInputStream initializeDecompressorForThisEntry(CipherInputStream cipherInputStream, LocalFileHeader localFileHeader) {
  CompressionMethod compressionMethod = getCompressionMethod(localFileHeader);

  if (compressionMethod == CompressionMethod.DEFLATE) {
    return new InflaterInputStream(cipherInputStream);
  }

  return new StoreInputStream(cipherInputStream);
}
Example 4
Source File: CipherInputStream.java    From zip4j with Apache License 2.0 5 votes vote down vote up 
public CipherInputStream(ZipEntryInputStream zipEntryInputStream, LocalFileHeader localFileHeader, char[] password) throws IOException, ZipException {
  this.zipEntryInputStream = zipEntryInputStream;
  this.decrypter = initializeDecrypter(localFileHeader, password);
  this.localFileHeader = localFileHeader;

  if (getCompressionMethod(localFileHeader) == CompressionMethod.DEFLATE) {
    lastReadRawDataCache = new byte[InternalZipConstants.BUFF_SIZE];
  }
}
Example 5
Source File: ZipOutputStream.java    From zip4j with Apache License 2.0 5 votes vote down vote up 
private CompressedOutputStream initializeCompressedOutputStream(CipherOutputStream cipherOutputStream,
                                                                ZipParameters zipParameters) {
  if (zipParameters.getCompressionMethod() == CompressionMethod.DEFLATE) {
    return new DeflaterOutputStream(cipherOutputStream, zipParameters.getCompressionLevel());
  }

  return new StoreOutputStream(cipherOutputStream);
}
Example 6
Source File: FileHeaderFactoryTest.java    From zip4j with Apache License 2.0 5 votes vote down vote up 
private void verifyGeneralPurposeBytes(byte[] generalPurposeBytes, ZipParameters zipParameters) {
  assertThat(generalPurposeBytes).isNotNull();
  assertThat(generalPurposeBytes.length).isEqualTo(2);
  assertThat(isBitSet(generalPurposeBytes[0], 0)).isEqualTo(zipParameters.isEncryptFiles());
  if (zipParameters.getCompressionMethod() == CompressionMethod.DEFLATE) {
    verifyCompressionLevelGridForDeflate(zipParameters.getCompressionLevel(),
        generalPurposeBytes[0]);
  } else {
    assertThat(isBitSet(generalPurposeBytes[0], 1)).isFalse();
    assertThat(isBitSet(generalPurposeBytes[0], 2)).isFalse();
  }
  assertThat(isBitSet(generalPurposeBytes[0], 3)).isEqualTo(zipParameters.isWriteExtendedLocalFileHeader());
  assertThat(isBitSet(generalPurposeBytes[1], 3)).isTrue();
}