/*
* Copyright 2016 JBoss by Red Hat.
*
* 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.
*/
package org.jboss.as.server.deployment;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.DEPLOYMENT;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.HASH;
import static org.jboss.as.server.Services.JBOSS_SERVER_EXECUTOR;
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.ENABLED;
import static org.jboss.as.server.controller.resources.DeploymentAttributes.EXPLODED_CONTENT;
import static org.jboss.as.server.controller.resources.DeploymentAttributes.OVERWRITE;
import static org.jboss.as.server.controller.resources.DeploymentAttributes.TARGET_PATH;
import static org.jboss.as.server.deployment.DeploymentHandlerUtil.getContentItem;
import static org.jboss.as.server.deployment.DeploymentHandlerUtil.isArchive;
import static org.jboss.as.server.deployment.DeploymentHandlerUtil.isManaged;
import static org.jboss.as.server.deployment.DeploymentHandlerUtils.createFailureException;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;
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.ProcessType;
import org.jboss.as.controller.registry.Resource;
import org.jboss.as.repository.ContentRepository;
import org.jboss.as.repository.ExplodedContent;
import org.jboss.as.repository.ExplodedContentException;
import org.jboss.as.server.ServerEnvironment;
import org.jboss.as.server.controller.resources.DeploymentAttributes;
import org.jboss.as.server.logging.ServerLogger;
import org.jboss.dmr.ModelNode;
/**
* Handler for the "add-content" operation over an exploded managed deployment.
* @author Emmanuel Hugonnet (c) 2016 Red Hat, inc.
*/
public class ExplodedDeploymentAddContentHandler implements OperationStepHandler {
private final ContentRepository contentRepository;
private final ServerEnvironment serverEnvironment;
public ExplodedDeploymentAddContentHandler(final ContentRepository contentRepository,
final ServerEnvironment serverEnvironment) {
assert contentRepository != null : "Null contentRepository";
this.contentRepository = contentRepository;
this.serverEnvironment = serverEnvironment;
}
@Override
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
if (context.getProcessType() == ProcessType.SELF_CONTAINED) {
throw ServerLogger.ROOT_LOGGER.cannotAddContentToSelfContainedServer();
}
final Resource deploymentResource = context.readResourceForUpdate(PathAddress.EMPTY_ADDRESS);
ModelNode contentItemNode = getContentItem(deploymentResource);
// Validate this op is available
if (!isManaged(contentItemNode)) {
throw ServerLogger.ROOT_LOGGER.cannotAddContentToUnmanagedDeployment();
} else if (isArchive(contentItemNode)) {
throw ServerLogger.ROOT_LOGGER.cannotAddContentToUnexplodedDeployment();
}
final String managementName = context.getCurrentAddress().getLastElement().getValue();
final PathAddress address = PathAddress.pathAddress(DEPLOYMENT, managementName);
final byte[] oldHash = CONTENT_HASH.resolveModelAttribute(context, contentItemNode).asBytes();
final boolean overwrite = OVERWRITE.resolveModelAttribute(context, operation).asBoolean(true);
List<ModelNode> contents = EXPLODED_CONTENT.resolveModelAttribute(context, operation).asList();
final List<ExplodedContent> addedFiles = new ArrayList<>(contents.size());
final byte[] newHash;
if (contents.size() == 1 && contents.get(0).hasDefined(HASH)) {
newHash = DeploymentHandlerUtil.addFromHash(contentRepository, contents.get(0), managementName, address, context);
if (operation.hasDefined(DeploymentAttributes.UPDATED_PATHS.getName())) {
for (ModelNode addedFile : DeploymentAttributes.UPDATED_PATHS.resolveModelAttribute(context, operation).asList()) {
addedFiles.add(new ExplodedContent(addedFile.asString()));
}
}
} else {
for (ModelNode content : contents) {
InputStream in;
if(DeploymentHandlerUtils.hasValidContentAdditionParameterDefined(content)) {
in = DeploymentHandlerUtils.getInputStream(context, content);
} else {
in = null;
}
String path = TARGET_PATH.resolveModelAttribute(context, content).asString();
addedFiles.add(new ExplodedContent(path, in));
}
try {
newHash = contentRepository.addContentToExploded(oldHash, addedFiles, overwrite);
} catch (ExplodedContentException e) {
throw createFailureException(e.toString());
}
}
final List<String> relativePaths = addedFiles.stream().map(ExplodedContent::getRelativePath).collect(Collectors.toList());
contentItemNode.get(CONTENT_HASH.getName()).set(newHash);
contentItemNode.get(CONTENT_ARCHIVE.getName()).set(false);
if (!addedFiles.isEmpty() && ENABLED.resolveModelAttribute(context, deploymentResource.getModel()).asBoolean()) {
context.addStep(new OperationStepHandler() {
@Override
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
try {
ExecutorService executor = (ExecutorService) context.getServiceRegistry(false).getRequiredService(JBOSS_SERVER_EXECUTOR).getValue();
CountDownLatch latch = copy(executor, relativePaths, managementName, newHash);
if (latch != null) {
try {
if (!latch.await(60, TimeUnit.SECONDS)) {
return;
}
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
throw createFailureException(e.toString());
}
}
} catch (IOException e) {
throw createFailureException(e.toString());
}
}
}, OperationContext.Stage.RUNTIME);
}
context.completeStep(new OperationContext.ResultHandler() {
@Override
public void handleResult(ResultAction resultAction, OperationContext context, ModelNode operation) {
if (resultAction == ResultAction.KEEP) {
if (oldHash != null && (newHash == null || !Arrays.equals(oldHash, newHash))) {
// The old content is no longer used; clean from repos
contentRepository.removeContent(ModelContentReference.fromModelAddress(address, oldHash));
}
if (newHash != null) {
contentRepository.addContentReference(ModelContentReference.fromModelAddress(address, newHash));
}
} else if (newHash != null && (oldHash == null || !Arrays.equals(oldHash, newHash))) {
// Due to rollback, the new content isn't used; clean from repos
contentRepository.removeContent(ModelContentReference.fromModelAddress(address, newHash));
}
}
});
}
private CountDownLatch copy(ExecutorService executor, List<String> relativePaths, String managementName, byte[] newHash) throws IOException {
final CountDownLatch result;
Path runtimeDeployedPath = DeploymentHandlerUtil.getExplodedDeploymentRoot(serverEnvironment, managementName);
if (Files.exists(runtimeDeployedPath)) {
result = new CountDownLatch(1);
Runnable r = new Runnable() {
@Override
public void run() {
try {
contentRepository.copyExplodedContentFiles(newHash, relativePaths, runtimeDeployedPath);
} catch (ExplodedContentException ex) {
ServerLogger.DEPLOYMENT_LOGGER.couldNotCopyFiles(ex, managementName);
} finally {
result.countDown();
}
}
};
executor.submit(r);
} else {
result = null;
}
return result;
}
}