org.apache.uima.ducc.database.lifetime.DbDaemonLifetimeUI Maven / Gradle / Ivy
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF 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.apache.uima.ducc.database.lifetime;
import java.util.List;
import org.apache.log4j.Level;
import org.apache.uima.ducc.database.lifetime.IDbDaemonLifetime.Daemon;
import org.apache.uima.ducc.database.lifetime.IDbDaemonLifetime.DaemonInfo;
import org.apache.uima.ducc.database.lifetime.IDbDaemonLifetime.DbResult;
/*
* Class comprising UI to manage table of DUCC daemons & desired state with respect to delete, query, quiesce, start, and stop.
*/
public class DbDaemonLifetimeUI {
public static final Integer RC_Failure = DbDaemonLifetimeCommon.RC_Failure;
public static final Integer RC_Success = DbDaemonLifetimeCommon.RC_Success;
public static final Integer RC_Help = DbDaemonLifetimeCommon.RC_Help;
private String __delete = "--delete";
private String __query = "--query";
private String __quiesce = "--quiesce";
private String __start = "--start";
private String __stop = "--stop";
private String[] kw_list = { __delete, __query, __quiesce, __start, __stop };
private String[] daemon_list = { Daemon.Ag.lcname(), Daemon.Or.lcname(), Daemon.Pm.lcname(), Daemon.Rm.lcname(), Daemon.Sm.lcname(), Daemon.Ws.lcname(), Daemon.Br.lcname(), Daemon.Db.lcname() };
private String help_selector = "<"+__delete+"|"+__query+"|"+__quiesce+"|"+__start+"|"+__stop+">";
private String help_host = "";
private String help_daemons =
"<"
+Daemon.Ag.lcname()
+"|"
+Daemon.Or.lcname()
+"|"
+Daemon.Pm.lcname()
+"|"
+Daemon.Rm.lcname()
+"|"
+Daemon.Sm.lcname()
+"|"
+Daemon.Ws.lcname()
+"|"
+Daemon.Br.lcname()
+"|"
+Daemon.Db.lcname()
+
">"
;
private String message_specify = "specify one of "
+__delete
+", "
+__query
+", "
+__quiesce
+", "
+__start
+", "
+__stop
+"";
private String help_msg = help_selector+" "+help_host+" "+help_daemons+"\n";
private DbDaemonLifetime dbDaemonLifetime = null;
private DbDaemonLifetimeUI() {
Level level = Level.DEBUG;
dbDaemonLifetime = new DbDaemonLifetime(level);
}
private void help() {
System.out.println(help_msg);
System.exit(RC_Help);
}
private boolean is_valid_host(String arg) {
boolean retVal = false;
if(arg.length() > 0) {
retVal = true;
}
return retVal;
}
private boolean is_valid(String needle, String[] haystack) {
boolean retVal = false;
if(needle != null) {
if(haystack != null) {
for(String item : haystack) {
if(needle.equalsIgnoreCase(item)) {
retVal = true;
break;
}
}
}
}
return retVal;
}
private boolean is_valid_kw(String arg) {
return is_valid(arg,kw_list);
}
private boolean is_valid_daemon(String arg) {
return is_valid(arg,daemon_list);
}
private int delete(String host, String daemon) {
DbResult dbResult = dbDaemonLifetime.delete(host,daemon);
return dbResult.rc;
}
private int query(String host, String daemon) {
DbResult dbResult = dbDaemonLifetime.query(host,daemon);
List list = dbResult.list;
if(list != null) {
for(DaemonInfo di : list) {
System.out.println(di.host+"."+di.daemon+"="+di.state);
}
}
return dbResult.rc;
}
private int quiesce(String host, String daemon, Long tod) {
DbResult dbResult = dbDaemonLifetime.quiesce(host,daemon,tod);
return dbResult.rc;
}
private int start(String host, String daemon, Long tod) {
DbResult dbResult = dbDaemonLifetime.start(host,daemon,tod);
return dbResult.rc;
}
private int stop(String host, String daemon, Long tod) {
DbResult dbResult;
if((host == null) || (daemon == null)) {
dbResult = dbDaemonLifetime.query(host,daemon);
if(dbResult.rc == RC_Success) {
List list = dbResult.list;
if(list != null) {
for(DaemonInfo di : list) {
stop(di.host, di.daemon, tod);
}
}
}
}
else {
dbResult = dbDaemonLifetime.stop(host,daemon,tod);
}
return dbResult.rc;
}
private int mainline(String[] args) {
int rc = RC_Failure;
Long tod = System.currentTimeMillis();
String kw = null;
if(args.length > 0) {
kw = DbDaemonLifetimeCommon.normalize_kw(args[0]);
}
String host = null;
if(args.length > 1) {
host = DbDaemonLifetimeCommon.normalize_host(args[1]);
}
String daemon = null;
if(args.length > 2) {
daemon = DbDaemonLifetimeCommon.normalize_daemon(args[2]);
}
//
if(args.length < 1) {
String message = "no arguments specified";
System.out.println(message);
help();
}
//
if(args.length == 1) {
if(!is_valid_kw(kw)) {
System.out.println(message_specify);
help();
}
if(kw.equalsIgnoreCase(__query)) {
rc = query(host,daemon);
}
else if(kw.equalsIgnoreCase(__stop)) {
rc = stop(host,daemon,tod);
}
else {
String message = "specify host and daemon";
System.out.println(message);
help();
}
}
//
else if(args.length == 2) {
if(!is_valid_kw(kw)) {
System.out.println(message_specify);
help();
}
if(!is_valid_host(host)) {
help();
}
if(kw.equalsIgnoreCase(__query)) {
rc = query(host,daemon);
}
else if(kw.equalsIgnoreCase(__stop)) {
rc = stop(host,daemon,tod);
}
else {
String message = "specify host and daemon";
System.out.println(message);
help();
}
}
//
else if(args.length == 3) {
if(!is_valid_kw(kw)) {
System.out.println(message_specify);
help();
}
if(!is_valid_host(host)) {
help();
}
if(!is_valid_daemon(daemon)) {
help();
}
if(kw.equalsIgnoreCase(__query)) {
rc = query(host,daemon);
}
else if(kw.equalsIgnoreCase(__delete)) {
rc = delete(host,daemon);
}
else if(kw.equalsIgnoreCase(__quiesce)) {
rc = quiesce(host,daemon,tod);
}
else if(kw.equalsIgnoreCase(__start)) {
rc = start(host,daemon,tod);
}
else if(kw.equalsIgnoreCase(__stop)) {
rc = stop(host,daemon,tod);
}
else {
System.out.println(message_specify);
help();
}
}
//
else {
String message = "too many arguments";
System.out.println(message);
help();
}
return rc;
}
public static void main(String[] args) {
int rc = RC_Failure;
try {
DbDaemonLifetimeUI instance = new DbDaemonLifetimeUI();
rc = instance.mainline(args);
}
catch(Exception e) {
e.printStackTrace();
}
System.exit(rc);
}
}