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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.flink.runtime.metrics.dump;
/**
* Container for scope related information as required by the MetricQueryService.
*/
public abstract class QueryScopeInfo {
/** Categories to be returned by {@link QueryScopeInfo#getCategory()} to avoid instanceof checks. */
public static final byte INFO_CATEGORY_JM = 0;
public static final byte INFO_CATEGORY_TM = 1;
public static final byte INFO_CATEGORY_JOB = 2;
public static final byte INFO_CATEGORY_TASK = 3;
public static final byte INFO_CATEGORY_OPERATOR = 4;
/** The remaining scope not covered by specific fields. */
public final String scope;
private QueryScopeInfo(String scope) {
this.scope = scope;
}
/**
* Create a copy of this QueryScopeInfo and append the given scope.
*
* @param userScope scope to append
* @return modified copy of this QueryScopeInfo
*/
public abstract QueryScopeInfo copy(String userScope);
/**
* Returns the category for this QueryScopeInfo.
*
* @return category
*/
public abstract byte getCategory();
@Override
public String toString() {
return "QueryScopeInfo{" +
"scope='" + scope + '\'' +
", category='" + getCategory() + '\'' +
'}';
}
protected String concatScopes(String additionalScope) {
return scope.isEmpty()
? additionalScope
: scope + "." + additionalScope;
}
/**
* Container for the job manager scope. Stores no additional information.
*/
public static class JobManagerQueryScopeInfo extends QueryScopeInfo {
public JobManagerQueryScopeInfo() {
super("");
}
public JobManagerQueryScopeInfo(String scope) {
super(scope);
}
@Override
public JobManagerQueryScopeInfo copy(String additionalScope) {
return new JobManagerQueryScopeInfo(concatScopes(additionalScope));
}
@Override
public byte getCategory() {
return INFO_CATEGORY_JM;
}
}
/**
* Container for the task manager scope. Stores the ID of the task manager.
*/
public static class TaskManagerQueryScopeInfo extends QueryScopeInfo {
public final String taskManagerID;
public TaskManagerQueryScopeInfo(String taskManagerId) {
this(taskManagerId, "");
}
public TaskManagerQueryScopeInfo(String taskManagerId, String scope) {
super(scope);
this.taskManagerID = taskManagerId;
}
@Override
public TaskManagerQueryScopeInfo copy(String additionalScope) {
return new TaskManagerQueryScopeInfo(this.taskManagerID, concatScopes(additionalScope));
}
@Override
public byte getCategory() {
return INFO_CATEGORY_TM;
}
}
/**
* Container for the job scope. Stores the ID of the job.
*/
public static class JobQueryScopeInfo extends QueryScopeInfo {
public final String jobID;
public JobQueryScopeInfo(String jobID) {
this(jobID, "");
}
public JobQueryScopeInfo(String jobID, String scope) {
super(scope);
this.jobID = jobID;
}
@Override
public JobQueryScopeInfo copy(String additionalScope) {
return new JobQueryScopeInfo(this.jobID, concatScopes(additionalScope));
}
@Override
public byte getCategory() {
return INFO_CATEGORY_JOB;
}
}
/**
* Container for the task scope. Stores the ID of the job/vertex and subtask index.
*/
public static class TaskQueryScopeInfo extends QueryScopeInfo {
public final String jobID;
public final String vertexID;
public final int subtaskIndex;
public TaskQueryScopeInfo(String jobID, String vertexid, int subtaskIndex) {
this(jobID, vertexid, subtaskIndex, "");
}
public TaskQueryScopeInfo(String jobID, String vertexid, int subtaskIndex, String scope) {
super(scope);
this.jobID = jobID;
this.vertexID = vertexid;
this.subtaskIndex = subtaskIndex;
}
@Override
public TaskQueryScopeInfo copy(String additionalScope) {
return new TaskQueryScopeInfo(this.jobID, this.vertexID, this.subtaskIndex, concatScopes(additionalScope));
}
@Override
public byte getCategory() {
return INFO_CATEGORY_TASK;
}
}
/**
* Container for the operator scope. Stores the ID of the job/vertex, the subtask index and the name of the operator.
*/
public static class OperatorQueryScopeInfo extends QueryScopeInfo {
public final String jobID;
public final String vertexID;
public final int subtaskIndex;
public final String operatorName;
public OperatorQueryScopeInfo(String jobID, String vertexid, int subtaskIndex, String operatorName) {
this(jobID, vertexid, subtaskIndex, operatorName, "");
}
public OperatorQueryScopeInfo(String jobID, String vertexid, int subtaskIndex, String operatorName, String scope) {
super(scope);
this.jobID = jobID;
this.vertexID = vertexid;
this.subtaskIndex = subtaskIndex;
this.operatorName = operatorName;
}
@Override
public OperatorQueryScopeInfo copy(String additionalScope) {
return new OperatorQueryScopeInfo(this.jobID, this.vertexID, this.subtaskIndex, this.operatorName, concatScopes(additionalScope));
}
@Override
public byte getCategory() {
return INFO_CATEGORY_OPERATOR;
}
}
}
