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/*
* 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.AccessControlEntryFilter;
import org.apache.kafka.common.acl.AclBindingFilter;
import org.apache.kafka.common.errors.UnsupportedVersionException;
import org.apache.kafka.common.protocol.ApiKeys;
import org.apache.kafka.common.protocol.types.ArrayOf;
import org.apache.kafka.common.protocol.types.Field;
import org.apache.kafka.common.protocol.types.Schema;
import org.apache.kafka.common.protocol.types.Struct;
import org.apache.kafka.common.resource.PatternType;
import org.apache.kafka.common.resource.ResourcePatternFilter;
import org.apache.kafka.common.utils.Utils;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import static org.apache.kafka.common.protocol.ApiKeys.DELETE_ACLS;
import static org.apache.kafka.common.protocol.CommonFields.HOST_FILTER;
import static org.apache.kafka.common.protocol.CommonFields.OPERATION;
import static org.apache.kafka.common.protocol.CommonFields.PERMISSION_TYPE;
import static org.apache.kafka.common.protocol.CommonFields.PRINCIPAL_FILTER;
import static org.apache.kafka.common.protocol.CommonFields.RESOURCE_NAME_FILTER;
import static org.apache.kafka.common.protocol.CommonFields.RESOURCE_PATTERN_TYPE_FILTER;
import static org.apache.kafka.common.protocol.CommonFields.RESOURCE_TYPE;
public class DeleteAclsRequest extends AbstractRequest {
private final static String FILTERS = "filters";
private static final Schema DELETE_ACLS_REQUEST_V0 = new Schema(
new Field(FILTERS, new ArrayOf(new Schema(
RESOURCE_TYPE,
RESOURCE_NAME_FILTER,
PRINCIPAL_FILTER,
HOST_FILTER,
OPERATION,
PERMISSION_TYPE))));
/**
* V1 sees a new `RESOURCE_PATTERN_TYPE_FILTER` that controls how the filter handles different resource pattern types.
* For more info, see {@link PatternType}.
*
* Also, when the quota is violated, brokers will respond to a version 1 or later request before throttling.
*/
private static final Schema DELETE_ACLS_REQUEST_V1 = new Schema(
new Field(FILTERS, new ArrayOf(new Schema(
RESOURCE_TYPE,
RESOURCE_NAME_FILTER,
RESOURCE_PATTERN_TYPE_FILTER,
PRINCIPAL_FILTER,
HOST_FILTER,
OPERATION,
PERMISSION_TYPE))));
public static Schema[] schemaVersions() {
return new Schema[]{DELETE_ACLS_REQUEST_V0, DELETE_ACLS_REQUEST_V1};
}
public static class Builder extends AbstractRequest.Builder {
private final List filters;
public Builder(List filters) {
super(DELETE_ACLS);
this.filters = filters;
}
@Override
public DeleteAclsRequest build(short version) {
return new DeleteAclsRequest(version, filters);
}
@Override
public String toString() {
return "(type=DeleteAclsRequest, filters=" + Utils.join(filters, ", ") + ")";
}
}
private final List filters;
DeleteAclsRequest(short version, List filters) {
super(ApiKeys.DELETE_ACLS, version);
this.filters = filters;
validate(version, filters);
}
public DeleteAclsRequest(Struct struct, short version) {
super(ApiKeys.DELETE_ACLS, version);
this.filters = new ArrayList<>();
for (Object filterStructObj : struct.getArray(FILTERS)) {
Struct filterStruct = (Struct) filterStructObj;
ResourcePatternFilter resourceFilter = RequestUtils.resourcePatternFilterFromStructFields(filterStruct);
AccessControlEntryFilter aceFilter = RequestUtils.aceFilterFromStructFields(filterStruct);
this.filters.add(new AclBindingFilter(resourceFilter, aceFilter));
}
}
public List filters() {
return filters;
}
@Override
protected Struct toStruct() {
Struct struct = new Struct(DELETE_ACLS.requestSchema(version()));
List filterStructs = new ArrayList<>();
for (AclBindingFilter filter : filters) {
Struct filterStruct = struct.instance(FILTERS);
RequestUtils.resourcePatternFilterSetStructFields(filter.patternFilter(), filterStruct);
RequestUtils.aceFilterSetStructFields(filter.entryFilter(), filterStruct);
filterStructs.add(filterStruct);
}
struct.set(FILTERS, filterStructs.toArray());
return struct;
}
@Override
public AbstractResponse getErrorResponse(int throttleTimeMs, Throwable throwable) {
short versionId = version();
switch (versionId) {
case 0:
case 1:
List responses = new ArrayList<>();
for (int i = 0; i < filters.size(); i++) {
responses.add(new DeleteAclsResponse.AclFilterResponse(
ApiError.fromThrowable(throwable), Collections.emptySet()));
}
return new DeleteAclsResponse(throttleTimeMs, responses);
default:
throw new IllegalArgumentException(String.format("Version %d is not valid. Valid versions for %s are 0 to %d",
versionId, this.getClass().getSimpleName(), ApiKeys.DELETE_ACLS.latestVersion()));
}
}
public static DeleteAclsRequest parse(ByteBuffer buffer, short version) {
return new DeleteAclsRequest(DELETE_ACLS.parseRequest(version, buffer), version);
}
private void validate(short version, List filters) {
if (version == 0) {
final boolean unsupported = filters.stream()
.map(AclBindingFilter::patternFilter)
.map(ResourcePatternFilter::patternType)
.anyMatch(patternType -> patternType != PatternType.LITERAL && patternType != PatternType.ANY);
if (unsupported) {
throw new UnsupportedVersionException("Version 0 only supports literal resource pattern types");
}
}
final boolean unknown = filters.stream().anyMatch(AclBindingFilter::isUnknown);
if (unknown) {
throw new IllegalArgumentException("Filters contain UNKNOWN elements");
}
}
}
