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/*******************************************************************************
* ============LICENSE_START==================================================
* * org.onap.dmaap
* * ===========================================================================
* * Copyright © 2017 AT&T 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====================================================
* *
* * ECOMP is a trademark and service mark of AT&T Intellectual Property.
* *
******************************************************************************/
package com.att.research.datarouter.provisioning.beans;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import java.util.TreeSet;
import org.apache.log4j.Logger;
import com.att.research.datarouter.provisioning.utils.DB;
/**
* This class is used to aid in the mapping of node names from/to node IDs.
*
* @author Robert P. Eby
* @version $Id: NodeClass.java,v 1.2 2014/01/15 16:08:43 eby Exp $
*/
public abstract class NodeClass extends Syncable {
private static Map<String, Integer> map;
public NodeClass() {
// init on first use
if (map == null) {
reload();
}
}
/**
* Add nodes to the NODES table, when the NODES parameter value is changed.
* Nodes are only added to the table, they are never deleted. The node name is normalized
* to contain the domain (if missing).
* @param nodes a pipe separated list of the current nodes
*/
public static void setNodes(String[] nodes) {
if (map == null)
reload();
int nextid = 0;
for (Integer n : map.values()) {
if (n >= nextid)
nextid = n+1;
}
// take | separated list, add domain if needed.
Logger intlogger = Logger.getLogger("com.att.research.datarouter.provisioning.internal");
for (String node : nodes) {
node = normalizeNodename(node);
if (!map.containsKey(node)) {
intlogger.info("..adding "+node+" to NODES with index "+nextid);
map.put(node, nextid);
PreparedStatement ps = null;
try {
DB db = new DB();
@SuppressWarnings("resource")
Connection conn = db.getConnection();
ps = conn.prepareStatement("insert into NODES (NODEID, NAME, ACTIVE) values (?, ?, 1)");
ps.setInt(1, nextid);
ps.setString(2, node);
ps.execute();
ps.close();
db.release(conn);
} catch (SQLException e) {
intlogger.warn("PROV0005 doInsert: "+e.getMessage());
e.printStackTrace();
} finally {
try {
ps.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
nextid++;
}
}
}
public static void reload() {
Map<String, Integer> m = new HashMap<String, Integer>();
PreparedStatement ps = null;
try {
DB db = new DB();
@SuppressWarnings("resource")
Connection conn = db.getConnection();
String sql = "select NODEID, NAME from NODES";
ps = conn.prepareStatement(sql);
ResultSet rs = ps.executeQuery();
while (rs.next()) {
int id = rs.getInt("NODEID");
String name = rs.getString("NAME");
m.put(name, id);
}
rs.close();
ps.close();
db.release(conn);
} catch (SQLException e) {
e.printStackTrace();
} finally {
try {
ps.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
map = m;
}
public static Integer lookupNodeName(final String name) throws IllegalArgumentException {
Integer n = map.get(name);
if (n == null)
throw new IllegalArgumentException("Invalid node name: "+name);
return n;
}
public static Collection<String> lookupNodeNames(String patt) throws IllegalArgumentException {
Collection<String> coll = new TreeSet<String>();
final Set<String> keyset = map.keySet();
for (String s : patt.toLowerCase().split(",")) {
if (s.endsWith("*")) {
s = s.substring(0, s.length()-1);
for (String s2 : keyset) {
if (s2.startsWith(s))
coll.add(s2);
}
} else if (keyset.contains(s)) {
coll.add(s);
} else if (keyset.contains(normalizeNodename(s))) {
coll.add(normalizeNodename(s));
} else {
throw new IllegalArgumentException("Invalid node name: "+s);
}
}
return coll;
}
protected String lookupNodeID(int n) {
for (String s : map.keySet()) {
if (map.get(s) == n)
return s;
}
return null;
}
public static String normalizeNodename(String s) {
if (s != null && s.indexOf('.') <= 0) {
Parameters p = Parameters.getParameter(Parameters.PROV_DOMAIN);
if (p != null) {
String domain = p.getValue();
s += "." + domain;
}
}
return s.toLowerCase();
}
}
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