/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [year]
* [name of copyright owner]"
*
* Contributor(s):
*
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.enterprise.ee.admin.lbadmin.reader.impl;
import com.sun.enterprise.config.serverbeans.ElementProperty;
import com.sun.enterprise.ee.admin.lbadmin.transform.Visitor;
import com.sun.enterprise.ee.admin.lbadmin.transform.LoadbalancerVisitor;
import com.sun.enterprise.ee.admin.lbadmin.reader.api.ClusterReader;
import com.sun.enterprise.ee.admin.lbadmin.reader.api.PropertyReader;
import com.sun.enterprise.ee.admin.lbadmin.reader.api.LoadbalancerReader;
import com.sun.enterprise.ee.admin.lbadmin.reader.api.LbReaderException;
import com.sun.enterprise.config.ConfigContext;
import com.sun.enterprise.config.serverbeans.LbConfigs;
import com.sun.enterprise.config.serverbeans.LbConfig;
import com.sun.enterprise.config.serverbeans.ClusterRef;
import com.sun.enterprise.config.serverbeans.ServerRef;
import java.util.List;
import java.util.ArrayList;
import java.util.logging.Logger;
import java.util.logging.Level;
import com.sun.logging.ee.EELogDomains;
import com.sun.enterprise.util.i18n.StringManagerBase;
import com.sun.enterprise.util.i18n.StringManager;
/**
* Reader class to get information about load balancer configuration.
*
* @author Satish Viswanatham
*/
public class LoadbalancerReaderImpl implements LoadbalancerReader {
//--- CTORS-------
public LoadbalancerReaderImpl (ConfigContext ctx, LbConfig lbConfig) {
if ( (lbConfig == null) || (ctx == null) ){
String msg = _localStrMgr.getString("ConfigBeanAndNameNull");
throw new IllegalArgumentException(msg);
}
_ctx = ctx;
_lbConfig = lbConfig;
}
//--- READER IMPLEMENTATION -----
/**
* Returns properties of the load balancer.
* For example response-timeout-in-seconds, reload-poll-interval-in-seconds
* and https-routing etc.
*
* @return PropertyReader[] array of properties
*/
public PropertyReader[] getProperties() throws LbReaderException {
// all the attributes as properties
ElementProperty [] properties = _lbConfig.getElementProperty();
// add default values for the props that are not defined
PropertyReaderImpl activeHealth = null;
PropertyReaderImpl numHealth = null;
PropertyReaderImpl rewriteLoc = null;
PropertyReaderImpl rewriteCookies = null;
int propSize = properties.length;
if ( _lbConfig.getElementPropertyByName(
LoadbalancerReader.ACTIVE_HEALTH_CHECK ) == null) {
activeHealth = new PropertyReaderImpl(_lbConfig,
LoadbalancerReader.ACTIVE_HEALTH_CHECK,
LoadbalancerReader.ACTIVE_HEALTH_CHECK_VALUE);
propSize++;
}
if ( _lbConfig.getElementPropertyByName(
LoadbalancerReader.NUM_HEALTH_CHECK ) == null) {
numHealth = new PropertyReaderImpl(_lbConfig,
LoadbalancerReader.NUM_HEALTH_CHECK,
LoadbalancerReader.NUM_HEALTH_CHECK_VALUE);
propSize++;
}
if ( _lbConfig.getElementPropertyByName(
LoadbalancerReader.REWRITE_LOCATION ) == null) {
rewriteLoc = new PropertyReaderImpl(_lbConfig,
LoadbalancerReader.REWRITE_LOCATION,
LoadbalancerReader.REWRITE_LOCATION_VALUE);
propSize++;
}
if ( _lbConfig.getElementPropertyByName(
LoadbalancerReader.REWRITE_COOKIES ) == null) {
rewriteCookies = new PropertyReaderImpl(_lbConfig,
LoadbalancerReader.REWRITE_COOKIES,
LoadbalancerReader.REWRITE_COOKIES_VALUE);
propSize++;
}
int i=0;
PropertyReaderImpl[] props = new PropertyReaderImpl[propSize+4];
props[i++] = new PropertyReaderImpl(_lbConfig,
LoadbalancerReader.RESP_TIMEOUT);
props[i++] = new PropertyReaderImpl(_lbConfig,
LoadbalancerReader.RELOAD_INTERVAL);
props[i++] = new PropertyReaderImpl(_lbConfig,
LoadbalancerReader.HTTPS_ROUTING);
props[i++] = new PropertyReaderImpl(_lbConfig,
LoadbalancerReader.REQ_MONITOR_DATA);
// props[4] = new PropertyReaderImpl(_lbConfig,
// LoadbalancerReader.ROUTE_COOKIE);
// XXX add all the properties
for(ElementProperty prop : properties) {
props[i++] = new PropertyReaderImpl(_lbConfig,
prop.getName());
}
// add default values for the props that are not defined
if ( activeHealth != null) {
props[i++] = activeHealth;
}
if ( numHealth != null) {
props[i++] = numHealth;
}
if ( rewriteLoc != null) {
props[i++] = rewriteLoc;
}
if ( rewriteCookies != null) {
props[i++] = rewriteCookies;
}
return props;
}
/**
* Returns the cluster info that are load balanced by this LB.
*
* @return ClusterReader array of cluster readers
*/
public ClusterReader[] getClusters() throws LbReaderException {
List list = new ArrayList();
ClusterRef[] clusters = _lbConfig.getClusterRef();
ServerRef[] servers = _lbConfig.getServerRef();
if (((clusters == null) || (clusters.length == 0)) &&
((servers == null) || (servers.length == 0))) {
return null;
}
int total = clusters.length + servers.length;
ClusterReader clImpls = null;
for (int i=0; i < clusters.length; i++) {
clImpls = new ClusterReaderImpl(_ctx,_lbConfig.getClusterRef(i));
list.add(clImpls);
}
for (int j= clusters.length; j < total; j++) {
clImpls = new StandAloneClusterReaderImpl(_ctx,
_lbConfig.getServerRef(j-clusters.length));
list.add(clImpls);
}
ClusterReader[] cls = new ClusterReader[list.size()];
return (ClusterReader[]) list.toArray(cls);
}
/**
* Returns the name of the load balancer
*
* @return String name of the LB
*/
public String getName() throws LbReaderException{
return _lbConfig.getName();
}
// --- VISITOR IMPLEMENTATION ---
public void accept(Visitor v) {
LoadbalancerVisitor cv = (LoadbalancerVisitor) v;
cv.visit(this);
}
// --- PRIVATE VARS -----
LbConfig _lbConfig = null;
ConfigContext _ctx = null;
private static final StringManager _localStrMgr =
StringManager.getManager(LoadbalancerReaderImpl.class);
}