/*
* JBoss, Home of Professional Open Source
* Copyright 2011 Red Hat Inc. and/or its affiliates and other contributors
* as indicated by the @authors tag. All rights reserved.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public License,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
package org.jboss.as.server.operations;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.ADD;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.OP_ADDR;
import static org.jboss.as.server.controller.resources.SystemPropertyResourceDefinition.BOOT_TIME;
import static org.jboss.as.server.controller.resources.SystemPropertyResourceDefinition.VALUE;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.jboss.as.controller.AttributeDefinition;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.OperationStepHandler;
import org.jboss.as.controller.PathAddress;
import org.jboss.as.controller.operations.common.ProcessEnvironmentSystemPropertyUpdater;
import org.jboss.as.controller.operations.common.Util;
import org.jboss.dmr.ModelNode;
import org.wildfly.security.manager.WildFlySecurityManager;
/**
* Operation handler for adding domain/host and server system properties.
*
* @author <a href="kabir.khan@jboss.com">Kabir Khan</a>
*/
public class SystemPropertyAddHandler implements OperationStepHandler{
public static final String OPERATION_NAME = ADD;
public static ModelNode getOperation(ModelNode address, String value) {
return getOperation(address, value, null);
}
public static ModelNode getOperation(ModelNode address, String value, Boolean boottime) {
ModelNode op = Util.getEmptyOperation(OPERATION_NAME, address);
if (value == null) {
op.get(VALUE.getName()).set(new ModelNode());
} else {
op.get(VALUE.getName()).set(value);
}
if (boottime != null) {
op.get(BOOT_TIME.getName()).set(boottime);
}
return op;
}
private final ProcessEnvironmentSystemPropertyUpdater systemPropertyUpdater;
private final AttributeDefinition[] attributes;
/**
* Create the SystemPropertyAddHandler
*
* @param systemPropertyUpdater the local process environment system property updater, or {@code null} if interaction with the process
* environment is not required
*/
public SystemPropertyAddHandler(ProcessEnvironmentSystemPropertyUpdater systemPropertyUpdater, AttributeDefinition[] attributes) {
this.systemPropertyUpdater = systemPropertyUpdater;
this.attributes = attributes;
}
@Override
public void execute(final OperationContext context, final ModelNode operation) throws OperationFailedException {
final ModelNode model = context.createResource(PathAddress.EMPTY_ADDRESS).getModel();
for (AttributeDefinition attr : attributes) {
attr.validateAndSet(operation, model);
}
final String name = PathAddress.pathAddress(operation.get(OP_ADDR)).getLastElement().getValue();
final String value = operation.hasDefined(VALUE.getName()) ? operation.get(VALUE.getName()).asString() : null;
final boolean applyToRuntime = systemPropertyUpdater != null && systemPropertyUpdater.isRuntimeSystemPropertyUpdateAllowed(name, value, context.isBooting());
final boolean reload = !applyToRuntime && context.getProcessType().isServer();
if (applyToRuntime) {
String setValue = null;
boolean setIt = false;
try {
setValue = value != null ? VALUE.resolveModelAttribute(context, model).asString() : null;
setIt = true;
} catch (Exception resolutionFailure) {
handleResolutionFailure(context, model, name, resolutionFailure);
}
if (setIt) {
setProperty(name, setValue);
}
} else if (reload) {
context.reloadRequired();
}
context.completeStep(new OperationContext.RollbackHandler() {
@Override
public void handleRollback(OperationContext context, ModelNode operation) {
if (reload) {
context.revertReloadRequired();
}
if (systemPropertyUpdater != null) {
WildFlySecurityManager.clearPropertyPrivileged(name);
if (systemPropertyUpdater != null) {
systemPropertyUpdater.systemPropertyUpdated(name, null);
}
}
}
});
}
private void setProperty(String name, String value) {
if (value != null) {
WildFlySecurityManager.setPropertyPrivileged(name, value);
} else {
WildFlySecurityManager.clearPropertyPrivileged(name);
}
if (systemPropertyUpdater != null) {
systemPropertyUpdater.systemPropertyUpdated(name, value);
}
}
private void handleResolutionFailure(OperationContext context, ModelNode model,
final String propertyName, final Exception resolutionFailure) {
assert resolutionFailure instanceof RuntimeException || resolutionFailure instanceof OperationFailedException
: "invalid resolutionFailure type " + resolutionFailure.getClass();
DeferredProcessor deferredResolver = (DeferredProcessor) context.getAttachment(SystemPropertyDeferredProcessor.ATTACHMENT_KEY);
if (deferredResolver == null) {
deferredResolver = new DeferredProcessor();
context.attach(SystemPropertyDeferredProcessor.ATTACHMENT_KEY, deferredResolver);
}
deferredResolver.unresolved.put(propertyName, model);
context.addStep(new OperationStepHandler() {
@Override
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
DeferredProcessor deferredResolver = (DeferredProcessor) context.getAttachment(SystemPropertyDeferredProcessor.ATTACHMENT_KEY);
if (deferredResolver != null && deferredResolver.unresolved.containsKey(propertyName)) {
context.setRollbackOnly();
if (resolutionFailure instanceof RuntimeException) {
throw (RuntimeException) resolutionFailure;
} else if (resolutionFailure instanceof OperationFailedException) {
throw (OperationFailedException) resolutionFailure;
}
// Should not be possible -- see initial assert
throw new RuntimeException(resolutionFailure);
}
}
}, OperationContext.Stage.VERIFY);
}
private class DeferredProcessor implements SystemPropertyDeferredProcessor {
private final Map<String, ModelNode> unresolved = new HashMap<String, ModelNode>();
@Override
public void processDeferredProperties(OperationContext context) throws OperationFailedException {
for (Iterator<Map.Entry<String, ModelNode>> it = unresolved.entrySet().iterator(); it.hasNext();) {
Map.Entry<String, ModelNode> entry = it.next();
try {
final String setValue = VALUE.resolveModelAttribute(context, entry.getValue()).asString();
setProperty(entry.getKey(), setValue);
it.remove();
} catch (OperationFailedException resolutionFailure) {
context.setRollbackOnly();
throw resolutionFailure;
} catch (RuntimeException resolutionFailure) {
context.setRollbackOnly();
throw resolutionFailure;
}
}
}
}
}