kafka CreateAclsRequest 源码
kafka CreateAclsRequest 代码
文件路径:/clients/src/main/java/org/apache/kafka/common/requests/CreateAclsRequest.java
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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 org.apache.kafka.common.requests;
import org.apache.kafka.common.acl.AccessControlEntry;
import org.apache.kafka.common.acl.AclBinding;
import org.apache.kafka.common.acl.AclOperation;
import org.apache.kafka.common.acl.AclPermissionType;
import org.apache.kafka.common.errors.UnsupportedVersionException;
import org.apache.kafka.common.message.CreateAclsRequestData;
import org.apache.kafka.common.message.CreateAclsRequestData.AclCreation;
import org.apache.kafka.common.message.CreateAclsResponseData;
import org.apache.kafka.common.message.CreateAclsResponseData.AclCreationResult;
import org.apache.kafka.common.protocol.ApiKeys;
import org.apache.kafka.common.protocol.ByteBufferAccessor;
import org.apache.kafka.common.resource.PatternType;
import org.apache.kafka.common.resource.ResourcePattern;
import org.apache.kafka.common.resource.ResourceType;
import java.nio.ByteBuffer;
import java.util.Collections;
import java.util.List;
public class CreateAclsRequest extends AbstractRequest {
public static class Builder extends AbstractRequest.Builder<CreateAclsRequest> {
private final CreateAclsRequestData data;
public Builder(CreateAclsRequestData data) {
super(ApiKeys.CREATE_ACLS);
this.data = data;
}
@Override
public CreateAclsRequest build(short version) {
return new CreateAclsRequest(data, version);
}
@Override
public String toString() {
return data.toString();
}
}
private final CreateAclsRequestData data;
CreateAclsRequest(CreateAclsRequestData data, short version) {
super(ApiKeys.CREATE_ACLS, version);
validate(data);
this.data = data;
}
public List<AclCreation> aclCreations() {
return data.creations();
}
@Override
public CreateAclsRequestData data() {
return data;
}
@Override
public AbstractResponse getErrorResponse(int throttleTimeMs, Throwable throwable) {
CreateAclsResponseData.AclCreationResult result = CreateAclsRequest.aclResult(throwable);
List<CreateAclsResponseData.AclCreationResult> results = Collections.nCopies(data.creations().size(), result);
return new CreateAclsResponse(new CreateAclsResponseData()
.setThrottleTimeMs(throttleTimeMs)
.setResults(results));
}
public static CreateAclsRequest parse(ByteBuffer buffer, short version) {
return new CreateAclsRequest(new CreateAclsRequestData(new ByteBufferAccessor(buffer), version), version);
}
private void validate(CreateAclsRequestData data) {
if (version() == 0) {
final boolean unsupported = data.creations().stream().anyMatch(creation ->
creation.resourcePatternType() != PatternType.LITERAL.code());
if (unsupported)
throw new UnsupportedVersionException("Version 0 only supports literal resource pattern types");
}
final boolean unknown = data.creations().stream().anyMatch(creation ->
creation.resourcePatternType() == PatternType.UNKNOWN.code()
|| creation.resourceType() == ResourceType.UNKNOWN.code()
|| creation.permissionType() == AclPermissionType.UNKNOWN.code()
|| creation.operation() == AclOperation.UNKNOWN.code());
if (unknown)
throw new IllegalArgumentException("CreatableAcls contain unknown elements: " + data.creations());
}
public static AclBinding aclBinding(AclCreation acl) {
ResourcePattern pattern = new ResourcePattern(
ResourceType.fromCode(acl.resourceType()),
acl.resourceName(),
PatternType.fromCode(acl.resourcePatternType()));
AccessControlEntry entry = new AccessControlEntry(
acl.principal(),
acl.host(),
AclOperation.fromCode(acl.operation()),
AclPermissionType.fromCode(acl.permissionType()));
return new AclBinding(pattern, entry);
}
public static AclCreation aclCreation(AclBinding binding) {
return new AclCreation()
.setHost(binding.entry().host())
.setOperation(binding.entry().operation().code())
.setPermissionType(binding.entry().permissionType().code())
.setPrincipal(binding.entry().principal())
.setResourceName(binding.pattern().name())
.setResourceType(binding.pattern().resourceType().code())
.setResourcePatternType(binding.pattern().patternType().code());
}
private static AclCreationResult aclResult(Throwable throwable) {
ApiError apiError = ApiError.fromThrowable(throwable);
return new AclCreationResult()
.setErrorCode(apiError.error().code())
.setErrorMessage(apiError.message());
}
}
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