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/*
* ============LICENSE_START========================================================================
* ONAP : ccsdk feature sdnr wt
* =================================================================================================
* Copyright (C) 2019 highstreet technologies GmbH Intellectual Property. All rights reserved.
* =================================================================================================
* Licensed 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.
* ============LICENSE_END==========================================================================
*/
package org.onap.ccsdk.features.sdnr.wt.websocketmanager.utils;
import com.typesafe.config.Config;
import com.typesafe.config.ConfigFactory;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.onap.ccsdk.features.sdnr.wt.websocketmanager.WebSocketManager;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class AkkaConfig {
private static final Logger LOG = LoggerFactory.getLogger(WebSocketManager.class.getName());
public static class ClusterNodeInfo {
@Override
public String toString() {
return "ClusterNodeInfo [protocol=" + protocol + ", clusterName=" + clusterName + ", remoteAdr=" + remoteAdr
+ ", port=" + port + "]";
}
private final String protocol;
private final String clusterName;
private final String remoteAdr;
private final int port;
public String getRemoteAddress() {
return this.remoteAdr;
}
public ClusterNodeInfo(String s) throws Exception {
final String regex = "([a-z.]{0,10}):\\/\\/([a-zA-Z0-9-]{0,1024})@([a-zA-Z0-9.-]{0,1024}):([0-9]{0,10})";
final Pattern pattern = Pattern.compile(regex);
final Matcher matcher = pattern.matcher(s);
if (!matcher.find()) {
throw new Exception("invalid seedNode format");
}
this.protocol = matcher.group(1);
this.clusterName = matcher.group(2);
this.remoteAdr = matcher.group(3);
this.port = Integer.parseInt(matcher.group(4));
}
}
public static class ClusterRoleInfo {
@Override
public String toString() {
return "ClusterRoleInfo [Role=" + Role + ", Index=" + Index + "]";
}
private final String Role;
private final int Index;
public ClusterRoleInfo(String s) throws Exception {
// role with minimum 1 character
// index with minimum 1 character or Integer.parseInt raise an exception
// index with maximum 10 because it's an integer
final String regex = "([a-z]{1,1024})-([0-9]{1,10})";
final Pattern pattern = Pattern.compile(regex);
final Matcher matcher = pattern.matcher(s);
if (!matcher.find()) {
throw new Exception("invalid role format");
}
this.Role = matcher.group(1);
this.Index = Integer.parseInt(matcher.group(2));
}
}
public static class ClusterConfig {
@Override
public String toString() {
return "ClusterConfig [seedNodes=" + seedNodes + ", roles=" + roles + "]";
}
private final List<ClusterNodeInfo> seedNodes;
private final List<ClusterRoleInfo> roles;
private final ClusterNodeInfo ismeInfo;
public ClusterConfig(Config o) throws Exception {
{
this.seedNodes = new ArrayList<>();
List<String> a = o.getStringList("seed-nodes");
for (int i = 0; i < a.size(); i++) {
ClusterNodeInfo info = new ClusterNodeInfo(a.get(i));
this.seedNodes.add(info);
}
this.roles = new ArrayList<>();
a = o.getStringList("roles");
for (int i = 0; i < a.size(); i++) {
ClusterRoleInfo s = new ClusterRoleInfo(a.get(i));
this.roles.add(s);
}
int idx = this.roles.get(0).Index - 1;
if (idx >= 0 && idx < this.seedNodes.size()) {
this.ismeInfo = this.seedNodes.get(idx);
} else {
this.ismeInfo = null;
}
}
}
public boolean isCluster() {
return this.seedNodes != null ? this.seedNodes.size() > 1 : false;
}
public boolean isMe(ClusterNodeInfo i) {
return this.ismeInfo != null ? this.ismeInfo.equals(i) : false;
}
public List<ClusterNodeInfo> getSeedNodes() {
return this.seedNodes;
}
}
private static final String DEFAULT_FILENAME = "configuration/initial/akka.conf";
private final File file;
private final String resourceFilename;
private final String fileContent;
private ClusterConfig cluserConfig;
public ClusterConfig getClusterConfig() {
return this.cluserConfig;
}
private AkkaConfig(File file, boolean isResource) {
this.file = isResource ? null : file;
this.fileContent = null;
this.resourceFilename = isResource ? file.getName() : null;
}
private AkkaConfig(String fileContent) {
this.file = null;
this.fileContent = fileContent;
this.resourceFilename = null;
}
@Override
public String toString() {
return "AkkaConfig [filename=" + file + ", cluserConfig=" + cluserConfig + "]";
}
private void loadFromFile() throws Exception {
Config cfg = null;
if (this.file != null) {
cfg = ConfigFactory.parseFile(this.file);
} else if (this.fileContent != null) {
cfg = ConfigFactory.parseString(this.fileContent);
} else if (this.resourceFilename != null) {
cfg = ConfigFactory.parseResources(this.getClass(), this.resourceFilename);
}
if (cfg != null) {
this.cluserConfig =
new ClusterConfig(cfg.getConfig("odl-cluster-data").getConfig("akka").getConfig("cluster"));
} else {
LOG.warn("unable to parse config file");
this.cluserConfig = null;
}
}
public boolean isCluster() {
return this.cluserConfig != null && this.cluserConfig.isCluster();
}
public static AkkaConfig load() throws Exception {
return load(DEFAULT_FILENAME);
}
public static AkkaConfig load(String filename) throws Exception {
return load(filename, false);
}
public static AkkaConfig load(String filename, boolean isResource) throws Exception {
AkkaConfig cfg = new AkkaConfig(new File(filename), isResource);
cfg.loadFromFile();
return cfg;
}
public static AkkaConfig loadContent(String content) throws Exception {
AkkaConfig cfg = new AkkaConfig(content);
cfg.loadFromFile();
return cfg;
}
}
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