org.elasticsearch.cluster.node.DiscoveryNodeFilters Maven / Gradle / Ivy
/*
* Licensed to ElasticSearch and Shay Banon 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.cluster.node;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.regex.Regex;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.transport.InetSocketTransportAddress;
import java.util.HashMap;
import java.util.Map;
/**
*/
public class DiscoveryNodeFilters {
public static enum OpType {
AND,
OR
};
public static DiscoveryNodeFilters buildFromSettings(OpType opType, String prefix, Settings settings) {
return buildFromKeyValue(opType, settings.getByPrefix(prefix).getAsMap());
}
public static DiscoveryNodeFilters buildFromKeyValue(OpType opType, Map filters) {
Map bFilters = new HashMap();
for (Map.Entry entry : filters.entrySet()) {
String[] values = Strings.splitStringByCommaToArray(entry.getValue());
if (values.length > 0) {
bFilters.put(entry.getKey(), values);
}
}
if (bFilters.isEmpty()) {
return null;
}
return new DiscoveryNodeFilters(opType, bFilters);
}
private final Map filters;
private final OpType opType;
DiscoveryNodeFilters(OpType opType, Map filters) {
this.opType = opType;
this.filters = filters;
}
public boolean match(DiscoveryNode node) {
for (Map.Entry entry : filters.entrySet()) {
String attr = entry.getKey();
String[] values = entry.getValue();
if ("_ip".equals(attr)) {
if (!(node.address() instanceof InetSocketTransportAddress)) {
if (opType == OpType.AND) {
return false;
} else {
continue;
}
}
InetSocketTransportAddress inetAddress = (InetSocketTransportAddress) node.address();
for (String value : values) {
if (Regex.simpleMatch(value, inetAddress.address().getAddress().getHostAddress())) {
if (opType == OpType.OR) {
return true;
}
} else {
if (opType == OpType.AND) {
return false;
}
}
}
} else if ("_host".equals(attr)) {
if (!(node.address() instanceof InetSocketTransportAddress)) {
if (opType == OpType.AND) {
return false;
} else {
continue;
}
}
InetSocketTransportAddress inetAddress = (InetSocketTransportAddress) node.address();
for (String value : values) {
if (Regex.simpleMatch(value, inetAddress.address().getHostName())) {
if (opType == OpType.OR) {
return true;
}
} else {
if (opType == OpType.AND) {
return false;
}
}
if (Regex.simpleMatch(value, inetAddress.address().getAddress().getHostAddress())) {
if (opType == OpType.OR) {
return true;
}
} else {
if (opType == OpType.AND) {
return false;
}
}
}
} else if ("_id".equals(attr)) {
for (String value : values) {
if (node.id().equals(value)) {
if (opType == OpType.OR) {
return true;
}
} else {
if (opType == OpType.AND) {
return false;
}
}
}
} else if ("_name".equals(attr) || "name".equals(attr)) {
for (String value : values) {
if (Regex.simpleMatch(value, node.name())) {
if (opType == OpType.OR) {
return true;
}
} else {
if (opType == OpType.AND) {
return false;
}
}
}
} else {
String nodeAttributeValue = node.attributes().get(attr);
if (nodeAttributeValue == null) {
if (opType == OpType.AND) {
return false;
} else {
continue;
}
}
for (String value : values) {
if (Regex.simpleMatch(value, nodeAttributeValue)) {
if (opType == OpType.OR) {
return true;
}
} else {
if (opType == OpType.AND) {
return false;
}
}
}
}
}
if (opType == OpType.OR) {
return false;
} else {
return true;
}
}
}