org.apache.hudi.org.apache.hbase.thirdparty.io.netty.handler.ssl.SupportedCipherSuiteFilter Maven / Gradle / Ivy
/*
* Copyright 2014 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:
*
* https://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 org.apache.hbase.thirdparty.io.netty.handler.ssl;
import org.apache.hbase.thirdparty.io.netty.util.internal.ObjectUtil;
import javax.net.ssl.SSLEngine;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
/**
* This class will filter all requested ciphers out that are not supported by the current {@link SSLEngine}.
*/
public final class SupportedCipherSuiteFilter implements CipherSuiteFilter {
public static final SupportedCipherSuiteFilter INSTANCE = new SupportedCipherSuiteFilter();
private SupportedCipherSuiteFilter() { }
@Override
public String[] filterCipherSuites(Iterable ciphers, List defaultCiphers,
Set supportedCiphers) {
ObjectUtil.checkNotNull(defaultCiphers, "defaultCiphers");
ObjectUtil.checkNotNull(supportedCiphers, "supportedCiphers");
final List newCiphers;
if (ciphers == null) {
newCiphers = new ArrayList(defaultCiphers.size());
ciphers = defaultCiphers;
} else {
newCiphers = new ArrayList(supportedCiphers.size());
}
for (String c : ciphers) {
if (c == null) {
break;
}
if (supportedCiphers.contains(c)) {
newCiphers.add(c);
}
}
return newCiphers.toArray(new String[0]);
}
}