com.google.crypto.tink.BinaryKeysetWriter Maven / Gradle / Ivy
// Copyright 2017 Google 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.google.crypto.tink;
import com.google.crypto.tink.proto.EncryptedKeyset;
import com.google.crypto.tink.proto.Keyset;
import com.google.errorprone.annotations.InlineMe;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
/**
* A {@link KeysetWriter} that can write to some source cleartext or encrypted keysets in proto binary wire format.
*
* @since 1.0.0
*/
public final class BinaryKeysetWriter implements KeysetWriter {
private final OutputStream outputStream;
private BinaryKeysetWriter(OutputStream stream) {
this.outputStream = stream;
}
/**
* Static method to create a BinaryKeysetWriter that writes to an {@link OutputStream}.
*
* {@code stream} will be immmediately closed after the keyset is written.
*/
public static KeysetWriter withOutputStream(OutputStream stream) {
return new BinaryKeysetWriter(stream);
}
/**
* Static method to create a BinaryKeysetWriter that writes to a file.
*
* @deprecated Inline the function.
*/
@InlineMe(
replacement = "BinaryKeysetWriter.withOutputStream(new FileOutputStream(file))",
imports = {"com.google.crypto.tink.BinaryKeysetWriter", "java.io.FileOutputStream"})
@Deprecated
public static KeysetWriter withFile(File file) throws IOException {
return withOutputStream(new FileOutputStream(file));
}
@Override
public void write(Keyset keyset) throws IOException {
try {
keyset.writeTo(outputStream);
} finally {
outputStream.close();
}
}
@Override
public void write(EncryptedKeyset keyset) throws IOException {
try {
keyset.toBuilder().clearKeysetInfo().build().writeTo(outputStream);
} finally {
outputStream.close();
}
}
}