org.opensearch.cluster.block.ClusterBlockException Maven / Gradle / Ivy
/*
* SPDX-License-Identifier: Apache-2.0
*
* The OpenSearch Contributors require contributions made to
* this file be licensed under the Apache-2.0 license or a
* compatible open source license.
*/
/*
* 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.
*/
/*
* Modifications Copyright OpenSearch Contributors. See
* GitHub history for details.
*/
package org.opensearch.cluster.block;
import org.opensearch.OpenSearchException;
import org.opensearch.common.io.stream.StreamInput;
import org.opensearch.common.io.stream.StreamOutput;
import org.opensearch.rest.RestStatus;
import java.io.IOException;
import java.util.Collection;
import java.util.Map;
import java.util.Set;
import java.util.function.Function;
import java.util.stream.Collectors;
import static java.util.Collections.unmodifiableSet;
public class ClusterBlockException extends OpenSearchException {
private final Set blocks;
public ClusterBlockException(Set globalLevelBlocks) {
super(buildMessageForGlobalBlocks(globalLevelBlocks));
this.blocks = globalLevelBlocks;
}
public ClusterBlockException(Map> indexLevelBlocks) {
super(buildMessageForIndexBlocks(indexLevelBlocks));
this.blocks = indexLevelBlocks.values().stream().flatMap(Collection::stream).collect(Collectors.toSet());
}
public ClusterBlockException(StreamInput in) throws IOException {
super(in);
this.blocks = unmodifiableSet(in.readSet(ClusterBlock::new));
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
if (blocks != null) {
out.writeCollection(blocks);
} else {
out.writeVInt(0);
}
}
public boolean retryable() {
for (ClusterBlock block : blocks) {
if (!block.retryable()) {
return false;
}
}
return true;
}
public Set blocks() {
return blocks;
}
private static String buildMessageForGlobalBlocks(Set globalLevelBlocks) {
assert globalLevelBlocks.isEmpty() == false;
Function blockDescription = block -> block.status() + "/" + block.id() + "/" + block.description();
StringBuilder sb = new StringBuilder();
if (globalLevelBlocks.isEmpty() == false) {
sb.append("blocked by: [");
sb.append(globalLevelBlocks.stream().map(blockDescription).collect(Collectors.joining(", ")));
sb.append("];");
}
return sb.toString();
}
private static String buildMessageForIndexBlocks(Map> indexLevelBlocks) {
assert indexLevelBlocks.isEmpty() == false;
Function blockDescription = block -> block.status() + "/" + block.id() + "/" + block.description();
StringBuilder sb = new StringBuilder();
for (Map.Entry> entry : indexLevelBlocks.entrySet()) {
sb.append("index [" + entry.getKey() + "] blocked by: [");
sb.append(entry.getValue().stream().map(blockDescription).collect(Collectors.joining(", ")));
sb.append("];");
}
return sb.toString();
}
@Override
public RestStatus status() {
RestStatus status = null;
boolean onlyRetryableBlocks = true;
for (ClusterBlock block : blocks) {
boolean isRetryableBlock = block.status() == RestStatus.TOO_MANY_REQUESTS;
if (isRetryableBlock == false) {
if (status == null) {
status = block.status();
} else if (status.getStatus() < block.status().getStatus()) {
status = block.status();
}
}
onlyRetryableBlocks = onlyRetryableBlocks && isRetryableBlock;
}
// return retryable status if there are only retryable blocks
if (onlyRetryableBlocks) {
return RestStatus.TOO_MANY_REQUESTS;
}
// return status which has the maximum code of all status except the retryable blocks'
return status;
}
}