org.elasticsearch.cluster.block.ClusterBlockException Maven / Gradle / Ivy
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.cluster.block;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.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 ElasticsearchException {
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() == false) {
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;
}
}