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Glassfish example source code file (DeleteHTTPHealthCheckerCommand.java)
The Glassfish DeleteHTTPHealthCheckerCommand.java source code/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright (c) 2010 Oracle and/or its affiliates. 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_1_1.html * or packager/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 packager/legal/LICENSE.txt. * * GPL Classpath Exception: * Oracle designates this particular file as subject to the "Classpath" * exception as provided by Oracle in the GPL Version 2 section of the License * file that accompanied this code. * * Modifications: * If applicable, add the following below the License Header, with the fields * enclosed by brackets [] replaced by your own identifying information: * "Portions Copyright [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 org.glassfish.loadbalancer.admin.cli; import java.util.logging.Logger; import java.util.List; import java.beans.PropertyVetoException; import org.jvnet.hk2.annotations.*; import org.jvnet.hk2.component.*; import org.jvnet.hk2.config.*; import org.glassfish.api.Param; import org.glassfish.api.ActionReport; import com.sun.enterprise.util.LocalStringManagerImpl; import org.glassfish.internal.api.Target; import com.sun.enterprise.config.serverbeans.Domain; import com.sun.enterprise.config.serverbeans.ClusterRef; import com.sun.enterprise.config.serverbeans.ServerRef; import com.sun.enterprise.config.serverbeans.HealthChecker; import com.sun.enterprise.config.serverbeans.LbConfigs; import com.sun.enterprise.config.serverbeans.LbConfig; import org.glassfish.api.admin.*; import org.glassfish.config.support.TargetType; import org.glassfish.config.support.CommandTarget; /** * This is a remote command that deletes health-checker config for cluster or * server. * @author Yamini K B */ @Service(name = "delete-http-health-checker") @Scoped(PerLookup.class) @TargetType(value={CommandTarget.STANDALONE_INSTANCE, CommandTarget.CLUSTER}) @org.glassfish.api.admin.ExecuteOn(RuntimeType.DAS) public final class DeleteHTTPHealthCheckerCommand implements AdminCommand { @Param(optional=true) String config; @Param(primary=true) String target; @Inject Domain domain; @Inject LbConfigs lbconfigs; @Inject Target tgt; @Inject Logger logger; private ActionReport report; final private static LocalStringManagerImpl localStrings = new LocalStringManagerImpl(DeleteHTTPHealthCheckerCommand.class); @Override public void execute(AdminCommandContext context) { report = context.getActionReport(); report.setActionExitCode(ActionReport.ExitCode.SUCCESS); if (config != null) { LbConfig lbConfig = lbconfigs.getLbConfig(config); deleteHealthCheckerInternal(lbConfig, target, false); } else { List<LbConfig> lbConfigs = lbconfigs.getLbConfig(); if (lbConfigs.size() == 0) { String msg = localStrings.getLocalString("NoLbConfigsElement", "Empty lb-configs"); logger.warning(msg); report.setActionExitCode(ActionReport.ExitCode.FAILURE); report.setMessage(msg); return; } for (LbConfig lc:lbConfigs) { deleteHealthCheckerInternal(lc, target, true); } } } /** * Deletes a health checker from a load balancer configuration. * * @param lbConfig Http load balancer configuration bean * @param target Name of a cluster or stand alone server instance * @param ignoreFailure if ignoreError is true, exceptions are not * thrown in the following cases * 1). The specified server instance or cluster * does not exist in the LB config. * 2).The target already contains the health checker * */ private void deleteHealthCheckerInternal(LbConfig lbConfig, String target, boolean ignoreFailure) { // invalid lb config name if (lbConfig == null) { String msg = localStrings.getLocalString("InvalidLbConfigName", "Invalid LB configuration."); report.setActionExitCode(ActionReport.ExitCode.FAILURE); report.setMessage(msg); return; } String lbConfigName = lbConfig.getName(); logger.fine("[LB-ADMIN] deleteHealthChecker called - LB Config Name: " + lbConfigName + ", Target: " + target); // null target if (target == null) { String msg = localStrings.getLocalString("Nulltarget", "Null target"); report.setActionExitCode(ActionReport.ExitCode.FAILURE); report.setMessage(msg); return; } // target is a cluster if (tgt.isCluster(target)) { ClusterRef cRef = lbConfig.getRefByRef(ClusterRef.class, target); // cluster is not associated to this lb config if ((cRef == null) && (ignoreFailure == false)){ String msg = localStrings.getLocalString("UnassociatedCluster", "Load balancer configuration [{0}] does not have a reference to the given cluster [{1}].", lbConfigName, target); report.setActionExitCode(ActionReport.ExitCode.FAILURE); report.setMessage(msg); return; } if (cRef != null) { HealthChecker hc = cRef.getHealthChecker(); if (hc != null) { removeHealthCheckerFromClusterRef(cRef); String msg = localStrings.getLocalString("http_lb_admin.HealthCheckerDeleted", "Health checker deleted for target {0}", target); logger.info(msg); } else { if (ignoreFailure == false) { String msg = localStrings.getLocalString("HealthCheckerDoesNotExist", "Health checker does not exist for target {0} in LB {1}", target, lbConfigName); report.setActionExitCode(ActionReport.ExitCode.FAILURE); report.setMessage(msg); return; } } } // target is a server } else if (domain.isServer(target)) { ServerRef sRef = lbConfig.getRefByRef(ServerRef.class, target); // server is not associated to this lb config if ((sRef == null) && (ignoreFailure == false)) { String msg = localStrings.getLocalString("UnassociatedServer", "Load balancer configuration [{0}] does not have a reference to the given server [{1}].", lbConfigName, target); report.setActionExitCode(ActionReport.ExitCode.FAILURE); report.setMessage(msg); return; } HealthChecker hc = sRef.getHealthChecker(); if (hc != null) { removeHealthCheckerFromServerRef(sRef); String msg = localStrings.getLocalString("http_lb_admin.HealthCheckerDeleted", "Health checker deleted for target {0}", target); logger.info(msg); } else { if (ignoreFailure == false) { String msg = localStrings.getLocalString("HealthCheckerDoesNotExist", "Health checker does not exist for target {0} in LB {1}", target, lbConfigName); report.setActionExitCode(ActionReport.ExitCode.FAILURE); report.setMessage(msg); return; } } } else { String msg = localStrings.getLocalString("InvalidTarget", "Invalid target", target); report.setActionExitCode(ActionReport.ExitCode.FAILURE); report.setMessage(msg); return; } } private void removeHealthCheckerFromClusterRef(ClusterRef cRef) { try { ConfigSupport.apply(new SingleConfigCode<ClusterRef>() { @Override public Object run(ClusterRef param) throws PropertyVetoException, TransactionFailure { param.setHealthChecker(null); return Boolean.TRUE; } }, cRef); } catch (TransactionFailure ex) { String msg = localStrings.getLocalString("FailedToRemoveHC", "Failed to remove health-checker"); report.setActionExitCode(ActionReport.ExitCode.FAILURE); report.setMessage(msg); report.setFailureCause(ex); return; } } private void removeHealthCheckerFromServerRef(ServerRef sRef) { try { ConfigSupport.apply(new SingleConfigCode<ServerRef>() { @Override public Object run(ServerRef param) throws PropertyVetoException, TransactionFailure { param.setHealthChecker(null); return Boolean.TRUE; } }, sRef); } catch (TransactionFailure ex) { String msg = localStrings.getLocalString("FailedToRemoveHC", "Failed to remove health-checker"); report.setActionExitCode(ActionReport.ExitCode.FAILURE); report.setMessage(msg); report.setFailureCause(ex); return; } } } Other Glassfish examples (source code examples)Here is a short list of links related to this Glassfish DeleteHTTPHealthCheckerCommand.java source code file: |
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