org.jboss.as.server.deployment.DeploymentFullReplaceHandler Maven / Gradle / Ivy
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/*
* 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.deployment;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.CONTENT;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.DEPLOYMENT;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.FULL_REPLACE_DEPLOYMENT;
import static org.jboss.as.server.controller.resources.DeploymentAttributes.CONTENT_ARCHIVE;
import static org.jboss.as.server.controller.resources.DeploymentAttributes.CONTENT_HASH;
import static org.jboss.as.server.controller.resources.DeploymentAttributes.CONTENT_PATH;
import static org.jboss.as.server.controller.resources.DeploymentAttributes.CONTENT_RELATIVE_TO;
import static org.jboss.as.server.controller.resources.DeploymentAttributes.ENABLED;
import static org.jboss.as.server.controller.resources.DeploymentAttributes.RUNTIME_NAME;
import static org.jboss.as.server.deployment.DeploymentHandlerUtils.asString;
import static org.jboss.as.server.deployment.DeploymentHandlerUtils.createFailureException;
import static org.jboss.as.server.deployment.DeploymentHandlerUtils.getInputStream;
import static org.jboss.as.server.deployment.DeploymentHandlerUtils.hasValidContentAdditionParameterDefined;
import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import org.jboss.as.controller.AttributeDefinition;
import org.jboss.as.controller.HashUtil;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationContext.ResultAction;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.OperationStepHandler;
import org.jboss.as.controller.PathAddress;
import org.jboss.as.controller.PathElement;
import org.jboss.as.protocol.StreamUtils;
import org.jboss.as.repository.ContentRepository;
import org.jboss.as.server.ServerMessages;
import org.jboss.as.server.controller.resources.DeploymentAttributes;
import org.jboss.as.server.services.security.AbstractVaultReader;
import org.jboss.dmr.ModelNode;
/**
* Handles replacement in the runtime of one deployment by another.
*
* @author Brian Stansberry (c) 2011 Red Hat Inc.
*/
public class DeploymentFullReplaceHandler implements OperationStepHandler {
public static final String OPERATION_NAME = FULL_REPLACE_DEPLOYMENT;
protected final ContentRepository contentRepository;
private final AbstractVaultReader vaultReader;
protected DeploymentFullReplaceHandler(final ContentRepository contentRepository, final AbstractVaultReader vaultReader) {
assert contentRepository != null : "Null contentRepository";
this.contentRepository = contentRepository;
this.vaultReader = vaultReader;
}
public static DeploymentFullReplaceHandler create(final ContentRepository contentRepository, final AbstractVaultReader vaultReader) {
return new DeploymentFullReplaceHandler(contentRepository, vaultReader);
}
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
// Validate op. Store any corrected values back to the op before manipulating further
ModelNode correctedOperation = operation.clone();
for (AttributeDefinition def : DeploymentAttributes.FULL_REPLACE_DEPLOYMENT_ATTRIBUTES.values()) {
def.validateAndSet(operation, correctedOperation);
}
// Pull data from the op
final String name = DeploymentAttributes.NAME.resolveModelAttribute(context, correctedOperation).asString();
final PathElement deploymentPath = PathElement.pathElement(DEPLOYMENT, name);
final String runtimeName = correctedOperation.hasDefined(RUNTIME_NAME.getName()) ? correctedOperation.get(RUNTIME_NAME.getName()).asString() : name;
// clone the content param, so we can modify it to our own content
ModelNode content = correctedOperation.require(CONTENT).clone();
// Throw a specific exception if the replaced deployment doesn't already exist
// BES 2013/10/30 -- this is pointless; the readResourceForUpdate call will throw
// an exception with an equally informative message if the deployment doesn't exist
// final Resource root = context.readResource(PathAddress.EMPTY_ADDRESS);
// boolean exists = root.hasChild(deploymentPath);
// if (!exists) {
// throw ServerMessages.MESSAGES.noSuchDeployment(name);
// }
final ModelNode deploymentModel = context.readResourceForUpdate(PathAddress.pathAddress(deploymentPath)).getModel();
// Keep track of runtime name of deployment we are replacing for use in Stage.RUNTIME
final String replacedRuntimeName = RUNTIME_NAME.resolveModelAttribute(context, deploymentModel).asString();
// Keep track of hash we are replacing so we can drop it from the content repo if all is well
ModelNode replacedContent = deploymentModel.get(CONTENT).get(0);
final byte[] replacedHash = replacedContent.hasDefined(CONTENT_HASH.getName())
? CONTENT_HASH.resolveModelAttribute(context, replacedContent).asBytes() : null;
// Set up the new content attribute
final byte[] newHash;
// TODO: JBAS-9020: for the moment overlays are not supported, so there is a single content item
final DeploymentHandlerUtil.ContentItem contentItem;
ModelNode contentItemNode = content.require(0);
if (contentItemNode.hasDefined(CONTENT_HASH.getName())) {
newHash = CONTENT_HASH.resolveModelAttribute(context, contentItemNode).asBytes();
contentItem = addFromHash(newHash);
} else if (hasValidContentAdditionParameterDefined(contentItemNode)) {
contentItem = addFromContentAdditionParameter(context, contentItemNode);
newHash = contentItem.getHash();
// Replace the content data
contentItemNode = new ModelNode();
contentItemNode.get(CONTENT_HASH.getName()).set(newHash);
content.clear();
content.add(contentItemNode);
} else {
contentItem = addUnmanaged(context, contentItemNode);
newHash = null;
}
// deploymentModel.get(NAME).set(name); // already there
deploymentModel.get(RUNTIME_NAME.getName()).set(runtimeName);
deploymentModel.get(CONTENT).set(content);
// ENABLED stays as is
// Do the runtime part if the deployment is enabled
if (ENABLED.resolveModelAttribute(context, deploymentModel).asBoolean()) {
DeploymentHandlerUtil.replace(context, deploymentModel, runtimeName, name, replacedRuntimeName, vaultReader, contentItem);
}
context.completeStep(new OperationContext.ResultHandler() {
@Override
public void handleResult(ResultAction resultAction, OperationContext context, ModelNode operation) {
if (resultAction == ResultAction.KEEP) {
if (replacedHash != null && (newHash == null || !Arrays.equals(replacedHash, newHash))) {
// The old content is no longer used; clean from repos
contentRepository.removeContent(replacedHash, name);
}
if (newHash != null) {
contentRepository.addContentReference(newHash, name);
}
} else if (newHash != null && (replacedHash == null || !Arrays.equals(replacedHash, newHash))) {
// Due to rollback, the new content isn't used; clean from repos
contentRepository.removeContent(newHash, name);
}
}
});
}
DeploymentHandlerUtil.ContentItem addFromHash(byte[] hash) throws OperationFailedException {
if (!contentRepository.syncContent(hash)) {
throw ServerMessages.MESSAGES.noSuchDeploymentContent(HashUtil.bytesToHexString(hash));
}
return new DeploymentHandlerUtil.ContentItem(hash);
}
DeploymentHandlerUtil.ContentItem addFromContentAdditionParameter(OperationContext context, ModelNode contentItemNode) throws OperationFailedException {
byte[] hash;
InputStream in = getInputStream(context, contentItemNode);
try {
try {
hash = contentRepository.addContent(in);
} catch (IOException e) {
throw createFailureException(e.toString());
}
} finally {
StreamUtils.safeClose(in);
}
contentItemNode.clear(); // AS7-1029
contentItemNode.get(CONTENT_HASH.getName()).set(hash);
// TODO: remove the content addition stuff?
return new DeploymentHandlerUtil.ContentItem(hash);
}
DeploymentHandlerUtil.ContentItem addUnmanaged(OperationContext context, ModelNode contentItemNode) throws OperationFailedException {
final String path = CONTENT_PATH.resolveModelAttribute(context, contentItemNode).asString();
final String relativeTo = asString(contentItemNode, CONTENT_RELATIVE_TO.getName());
final boolean archive = CONTENT_ARCHIVE.resolveModelAttribute(context, contentItemNode).asBoolean();
return new DeploymentHandlerUtil.ContentItem(path, relativeTo, archive);
}
}