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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.action.support.tasks;
import org.elasticsearch.action.ActionRequest;
import org.elasticsearch.action.ActionRequestValidationException;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.regex.Regex;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.tasks.ChildTask;
import org.elasticsearch.tasks.Task;
import java.io.IOException;
/**
* A base class for task requests
*/
public class BaseTasksRequest<T extends BaseTasksRequest> extends ActionRequest<T> {
public static final String[] ALL_ACTIONS = Strings.EMPTY_ARRAY;
public static final String[] ALL_NODES = Strings.EMPTY_ARRAY;
public static final long ALL_TASKS = -1L;
private String[] nodesIds = ALL_NODES;
private TimeValue timeout;
private String[] actions = ALL_ACTIONS;
private String parentNode;
private long parentTaskId = ALL_TASKS;
public BaseTasksRequest() {
}
@Override
public ActionRequestValidationException validate() {
return null;
}
/**
* Get information about tasks from nodes based on the nodes ids specified.
* If none are passed, information for all nodes will be returned.
*/
public BaseTasksRequest(ActionRequest request, String... nodesIds) {
super(request);
this.nodesIds = nodesIds;
}
/**
* Get information about tasks from nodes based on the nodes ids specified.
* If none are passed, information for all nodes will be returned.
*/
public BaseTasksRequest(String... nodesIds) {
this.nodesIds = nodesIds;
}
/**
* Sets the list of action masks for the actions that should be returned
*/
@SuppressWarnings("unchecked")
public final T actions(String... actions) {
this.actions = actions;
return (T) this;
}
/**
* Return the list of action masks for the actions that should be returned
*/
public String[] actions() {
return actions;
}
public final String[] nodesIds() {
return nodesIds;
}
@SuppressWarnings("unchecked")
public final T nodesIds(String... nodesIds) {
this.nodesIds = nodesIds;
return (T) this;
}
/**
* Returns the parent node id that tasks should be filtered by
*/
public String parentNode() {
return parentNode;
}
@SuppressWarnings("unchecked")
public T parentNode(String parentNode) {
this.parentNode = parentNode;
return (T) this;
}
/**
* Returns the parent task id that tasks should be filtered by
*/
public long parentTaskId() {
return parentTaskId;
}
@SuppressWarnings("unchecked")
public T parentTaskId(long parentTaskId) {
this.parentTaskId = parentTaskId;
return (T) this;
}
public TimeValue timeout() {
return this.timeout;
}
@SuppressWarnings("unchecked")
public final T timeout(TimeValue timeout) {
this.timeout = timeout;
return (T) this;
}
@SuppressWarnings("unchecked")
public final T timeout(String timeout) {
this.timeout = TimeValue.parseTimeValue(timeout, null, getClass().getSimpleName() + ".timeout");
return (T) this;
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
nodesIds = in.readStringArray();
actions = in.readStringArray();
parentNode = in.readOptionalString();
parentTaskId = in.readLong();
if (in.readBoolean()) {
timeout = TimeValue.readTimeValue(in);
}
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
out.writeStringArrayNullable(nodesIds);
out.writeStringArrayNullable(actions);
out.writeOptionalString(parentNode);
out.writeLong(parentTaskId);
out.writeOptionalStreamable(timeout);
}
public boolean match(Task task) {
if (actions() != null && actions().length > 0 && Regex.simpleMatch(actions(), task.getAction()) == false) {
return false;
}
if (parentNode() != null || parentTaskId() != BaseTasksRequest.ALL_TASKS) {
if (task instanceof ChildTask) {
if (parentNode() != null) {
if (parentNode().equals(((ChildTask) task).getParentNode()) == false) {
return false;
}
}
if (parentTaskId() != BaseTasksRequest.ALL_TASKS) {
if (parentTaskId() != ((ChildTask) task).getParentId()) {
return false;
}
}
} else {
// This is not a child task and we need to match parent node or id
return false;
}
}
return true;
}
}
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