io.netty.handler.codec.http2.HpackHeaderField Maven / Gradle / Ivy
/*
* Copyright 2015 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.
*/
/*
* Copyright 2014 Twitter, 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 io.netty.handler.codec.http2;
import static io.netty.util.internal.ObjectUtil.checkNotNull;
class HpackHeaderField {
// Section 4.1. Calculating Table Size
// The additional 32 octets account for an estimated
// overhead associated with the structure.
static final int HEADER_ENTRY_OVERHEAD = 32;
static long sizeOf(CharSequence name, CharSequence value) {
return name.length() + value.length() + HEADER_ENTRY_OVERHEAD;
}
final CharSequence name;
final CharSequence value;
// This constructor can only be used if name and value are ISO-8859-1 encoded.
HpackHeaderField(CharSequence name, CharSequence value) {
this.name = checkNotNull(name, "name");
this.value = checkNotNull(value, "value");
}
final int size() {
return name.length() + value.length() + HEADER_ENTRY_OVERHEAD;
}
@Override
public final int hashCode() {
// TODO(nmittler): Netty's build rules require this. Probably need a better implementation.
return super.hashCode();
}
@Override
public final boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (!(obj instanceof HpackHeaderField)) {
return false;
}
HpackHeaderField other = (HpackHeaderField) obj;
// To avoid short circuit behavior a bitwise operator is used instead of a boolean operator.
return (HpackUtil.equalsConstantTime(name, other.name) & HpackUtil.equalsConstantTime(value, other.value)) != 0;
}
@Override
public String toString() {
return name + ": " + value;
}
}