netty5/handler/src/main/java/io/netty/handler/ssl/PemValue.java
田欧 e8efcd82a8 migrate java8: use requireNonNull (#8840)
Motivation:

We can just use Objects.requireNonNull(...) as a replacement for ObjectUtil.checkNotNull(....)

Modifications:

- Use Objects.requireNonNull(...)

Result:

Less code to maintain.
2019-02-04 10:32:25 +01:00

107 lines
2.6 KiB
Java

/*
* Copyright 2016 The Netty Project
*
* The Netty Project 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 io.netty.handler.ssl;
import static java.util.Objects.requireNonNull;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufAllocator;
import io.netty.util.AbstractReferenceCounted;
import io.netty.util.IllegalReferenceCountException;
/**
* A PEM encoded value.
*
* @see PemEncoded
* @see PemPrivateKey#toPEM(ByteBufAllocator, boolean, java.security.PrivateKey)
* @see PemX509Certificate#toPEM(ByteBufAllocator, boolean, java.security.cert.X509Certificate[])
*/
class PemValue extends AbstractReferenceCounted implements PemEncoded {
private final ByteBuf content;
private final boolean sensitive;
PemValue(ByteBuf content, boolean sensitive) {
this.content = requireNonNull(content, "content");
this.sensitive = sensitive;
}
@Override
public boolean isSensitive() {
return sensitive;
}
@Override
public ByteBuf content() {
int count = refCnt();
if (count <= 0) {
throw new IllegalReferenceCountException(count);
}
return content;
}
@Override
public PemValue copy() {
return replace(content.copy());
}
@Override
public PemValue duplicate() {
return replace(content.duplicate());
}
@Override
public PemValue retainedDuplicate() {
return replace(content.retainedDuplicate());
}
@Override
public PemValue replace(ByteBuf content) {
return new PemValue(content, sensitive);
}
@Override
public PemValue touch() {
return (PemValue) super.touch();
}
@Override
public PemValue touch(Object hint) {
content.touch(hint);
return this;
}
@Override
public PemValue retain() {
return (PemValue) super.retain();
}
@Override
public PemValue retain(int increment) {
return (PemValue) super.retain(increment);
}
@Override
protected void deallocate() {
if (sensitive) {
SslUtils.zeroout(content);
}
content.release();
}
}