org.jboss.as.server.deployment.DeploymentOverlayDeploymentUnitProcessor Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source.
* Copyright 2012, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY 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 along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.server.deployment;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.Closeable;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.jboss.as.server.ServerLogger;
import org.jboss.as.server.ServerMessages;
import org.jboss.as.server.deployment.module.ResourceRoot;
import org.jboss.as.server.deployment.module.TempFileProviderService;
import org.jboss.as.server.deploymentoverlay.service.ContentService;
import org.jboss.as.server.deploymentoverlay.service.DeploymentOverlayIndexService;
import org.jboss.as.server.deploymentoverlay.service.DeploymentOverlayService;
import org.jboss.vfs.VFS;
import org.jboss.vfs.VirtualFile;
/**
* Deployment unit processor that adds content overrides to the VFS filesystem
*
* @author Stuart Douglas
*/
public class DeploymentOverlayDeploymentUnitProcessor implements DeploymentUnitProcessor {
private final DeploymentOverlayIndexService indexService;
private static final AttachmentKey> MOUNTED_FILES = AttachmentKey.createList(Closeable.class);
public DeploymentOverlayDeploymentUnitProcessor(final DeploymentOverlayIndexService indexService) {
this.indexService = indexService;
}
@Override
public void deploy(final DeploymentPhaseContext phaseContext) throws DeploymentUnitProcessingException {
final DeploymentUnit deploymentUnit = phaseContext.getDeploymentUnit();
final ResourceRoot deploymentRoot = deploymentUnit.getAttachment(Attachments.DEPLOYMENT_ROOT);
Map mounts = new HashMap();
deploymentUnit.putAttachment(Attachments.DEPLOYMENT_OVERLAY_LOCATIONS, mounts);
//resource roots require special handling
final Map resourceRootMap = new HashMap();
final AttachmentList rootList = deploymentUnit.getAttachment(Attachments.RESOURCE_ROOTS);
if (rootList != null) {
for (ResourceRoot root : rootList) {
resourceRootMap.put(root.getRoot().getPathNameRelativeTo(deploymentRoot.getRoot()), root);
}
}
//exploded is true if this is a zip deployment that has been mounted exploded
final boolean exploded = MountExplodedMarker.isMountExploded(deploymentUnit) && !ExplodedDeploymentMarker.isExplodedDeployment(deploymentUnit);
final Set paths = new HashSet();
for (final DeploymentOverlayService deploymentOverlay : indexService.getOverrides(deploymentUnit.getName())) {
for (final ContentService override : deploymentOverlay.getContentServices()) {
try {
if (!paths.contains(override.getPath())) {
VirtualFile mountPoint = deploymentRoot.getRoot().getChild(override.getPath());
paths.add(override.getPath());
if (exploded) {
//for exploded deployments we simply copy the file
copyFile(override.getContentHash().getPhysicalFile(), mountPoint.getPhysicalFile());
} else {
Closeable handle = VFS.mountReal(override.getContentHash().getPhysicalFile(), mountPoint);
MountedDeploymentOverlay mounted = new MountedDeploymentOverlay(handle, override.getContentHash().getPhysicalFile(), mountPoint, TempFileProviderService.provider());
deploymentUnit.addToAttachmentList(MOUNTED_FILES, mounted);
mounts.put(override.getPath(), mounted);
}
}
} catch (IOException e) {
throw ServerMessages.MESSAGES.deploymentOverlayFailed(e, deploymentOverlay.getName(), override.getPath());
}
}
}
}
@Override
public void undeploy(final DeploymentUnit context) {
for (Closeable closable : context.getAttachmentList(MOUNTED_FILES)) {
try {
closable.close();
} catch (IOException e) {
ServerLogger.DEPLOYMENT_LOGGER.failedToUnmountContentOverride(e);
}
}
}
public static void copyFile(final File src, final File dest) throws IOException {
final InputStream in = new BufferedInputStream(new FileInputStream(src));
try {
copyFile(in, dest);
} finally {
close(in);
}
}
public static void copyFile(final InputStream in, final File dest) throws IOException {
dest.getParentFile().mkdirs();
byte[] buff = new byte[1024];
final OutputStream out = new BufferedOutputStream(new FileOutputStream(dest));
try {
int i = in.read(buff);
while (i > 0) {
out.write(buff, 0, i);
i = in.read(buff);
}
} finally {
close(out);
}
}
public static void close(Closeable closeable) {
try {
closeable.close();
} catch (IOException ignore) {
}
}
}