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org.jboss.as.cli.handlers.module.ASModuleHandler Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, 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.cli.handlers.module;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.lang.reflect.Constructor;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;
import org.jboss.as.cli.CommandContext;
import org.jboss.as.cli.CommandFormatException;
import org.jboss.as.cli.CommandLineCompleter;
import org.jboss.as.cli.CommandLineException;
import org.jboss.as.cli.Util;
import org.jboss.as.cli.handlers.CommandHandlerWithHelp;
import org.jboss.as.cli.handlers.DefaultFilenameTabCompleter;
import org.jboss.as.cli.handlers.FilenameTabCompleter;
import org.jboss.as.cli.handlers.WindowsFilenameTabCompleter;
import org.jboss.as.cli.impl.ArgumentWithValue;
import org.jboss.as.cli.impl.DefaultCompleter;
import org.jboss.as.cli.impl.DefaultCompleter.CandidatesProvider;
import org.jboss.as.cli.operation.ParsedCommandLine;
import org.jboss.staxmapper.XMLExtendedStreamWriter;
import org.wildfly.security.manager.WildFlySecurityManager;
/**
*
* @author Alexey Loubyansky
*/
public class ASModuleHandler extends CommandHandlerWithHelp {
private class AddModuleArgument extends ArgumentWithValue {
private AddModuleArgument(String fullName) {
super(ASModuleHandler.this, fullName);
}
private AddModuleArgument(String fullName, CommandLineCompleter completer) {
super(ASModuleHandler.this, completer, fullName);
}
@Override
public boolean canAppearNext(CommandContext ctx) throws CommandFormatException {
final String actionValue = action.getValue(ctx.getParsedCommandLine());
return ACTION_ADD.equals(actionValue) && name.isPresent(ctx.getParsedCommandLine()) && super.canAppearNext(ctx);
}
}
private static final String JBOSS_HOME = "JBOSS_HOME";
private static final String PATH_SEPARATOR = File.pathSeparator;
private static final String MODULE_SEPARATOR = ",";
private static final String ACTION_ADD = "add";
private static final String ACTION_REMOVE = "remove";
private final ArgumentWithValue action = new ArgumentWithValue(this, new DefaultCompleter(new CandidatesProvider(){
@Override
public Collection getAllCandidates(CommandContext ctx) {
return Arrays.asList(new String[]{ACTION_ADD, ACTION_REMOVE});
}}), 0, "--action");
private final ArgumentWithValue name;
private final ArgumentWithValue mainClass;
private final ArgumentWithValue resources;
private final ArgumentWithValue dependencies;
private final ArgumentWithValue props;
private final ArgumentWithValue moduleArg;
private final ArgumentWithValue slot;
private File modulesDir;
public ASModuleHandler(CommandContext ctx) {
super("module", false);
final FilenameTabCompleter pathCompleter = Util.isWindows() ? new WindowsFilenameTabCompleter(ctx) : new DefaultFilenameTabCompleter(ctx);
final CommandLineCompleter moduleNameCompleter = new CommandLineCompleter() {
@Override
public int complete(CommandContext ctx, String buffer, int cursor, List candidates) {
String path = buffer.replace('.', File.separatorChar);
String modulesPath;
try {
modulesPath = getModulesDir().getAbsolutePath() + File.separatorChar;
} catch (CommandLineException e) {
return -1;
}
int result = pathCompleter.complete(ctx, modulesPath + path, cursor, candidates);
if(result < 0) {
return result;
}
for(int i = 0; i < candidates.size(); ++i) {
candidates.set(i, candidates.get(i).replace(File.separatorChar, '.'));
}
return result - modulesPath.length();
}
};
name = new ArgumentWithValue(this, moduleNameCompleter, "--name");
name.addRequiredPreceding(action);
mainClass = new AddModuleArgument("--main-class");
resources = new AddModuleArgument("--resources", new CommandLineCompleter(){
@Override
public int complete(CommandContext ctx, String buffer, int cursor, List candidates) {
final int lastSeparator = buffer.lastIndexOf(PATH_SEPARATOR);
if(lastSeparator >= 0) {
return lastSeparator + 1 + pathCompleter.complete(ctx, buffer.substring(lastSeparator + 1), cursor, candidates);
}
return pathCompleter.complete(ctx, buffer, cursor, candidates);
}}) {
@Override
public String getValue(ParsedCommandLine args) {
String value = super.getValue(args);
if(value != null) {
if(value.length() >= 0 && value.charAt(0) == '"' && value.charAt(value.length() - 1) == '"') {
value = value.substring(1, value.length() - 1);
}
value = pathCompleter.translatePath(value);
}
return value;
}
};
dependencies = new AddModuleArgument("--dependencies", new CommandLineCompleter(){
@Override
public int complete(CommandContext ctx, String buffer, int cursor, List candidates) {
final int lastSeparator = buffer.lastIndexOf(MODULE_SEPARATOR);
if(lastSeparator >= 0) {
return lastSeparator + 1 + moduleNameCompleter.complete(ctx, buffer.substring(lastSeparator + 1), cursor, candidates);
}
return moduleNameCompleter.complete(ctx, buffer, cursor, candidates);
}});
props = new AddModuleArgument("--properties");
moduleArg = new AddModuleArgument("--module-xml", pathCompleter);
slot = new ArgumentWithValue(this, new DefaultCompleter(new CandidatesProvider() {
@Override
public Collection getAllCandidates(CommandContext ctx) {
final String moduleName = name.getValue(ctx.getParsedCommandLine());
if(moduleName == null) {
return java.util.Collections.emptyList();
}
final File moduleDir;
try {
moduleDir = new File(getModulesDir(), moduleName.replace('.', File.separatorChar));
} catch (CommandLineException e) {
return java.util.Collections.emptyList();
}
if(!moduleDir.exists()) {
return java.util.Collections.emptyList();
}
return Arrays.asList(moduleDir.list());
}})
, "--slot");
moduleArg.addCantAppearAfter(mainClass);
moduleArg.addCantAppearAfter(dependencies);
moduleArg.addCantAppearAfter(props);
mainClass.addCantAppearAfter(moduleArg);
dependencies.addCantAppearAfter(moduleArg);
props.addCantAppearAfter(moduleArg);
}
@Override
public boolean isAvailable(CommandContext ctx) {
return !ctx.isDomainMode();
}
@Override
protected void doHandle(CommandContext ctx) throws CommandLineException {
final ParsedCommandLine parsedCmd = ctx.getParsedCommandLine();
final String actionValue = action.getValue(parsedCmd);
if(actionValue == null) {
throw new CommandFormatException("Action argument is missing: " + ACTION_ADD + " or " + ACTION_REMOVE);
}
if(ACTION_ADD.equals(actionValue)) {
addModule(ctx, parsedCmd);
} else if(ACTION_REMOVE.equals(actionValue)) {
removeModule(parsedCmd);
} else {
throw new CommandFormatException("Unexpected action '" + actionValue + "', expected values: " + ACTION_ADD + ", " + ACTION_REMOVE);
}
}
protected void addModule(CommandContext ctx, final ParsedCommandLine parsedCmd) throws CommandLineException {
final String moduleName = name.getValue(parsedCmd, true);
// resources required only if we are generating module.xml
final String resourcePaths = resources.getValue(parsedCmd, !moduleArg.isPresent(parsedCmd));
final String[] resourceArr = (resourcePaths == null) ? new String[0] : resourcePaths.split(PATH_SEPARATOR);
File[] resourceFiles = new File[resourceArr.length];
for(int i = 0; i < resourceArr.length; ++i) {
final File f = new File(ctx.getCurrentDir(), resourceArr[i]);
if(!f.exists()) {
throw new CommandLineException("Failed to locate " + f.getAbsolutePath());
}
resourceFiles[i] = f;
}
final File moduleDir = getModulePath(getModulesDir(), moduleName, slot.getValue(parsedCmd));
if(moduleDir.exists()) {
throw new CommandLineException("Module " + moduleName + " already exists at " + moduleDir.getAbsolutePath());
}
if(!moduleDir.mkdirs()) {
throw new CommandLineException("Failed to create directory " + moduleDir.getAbsolutePath());
}
final ModuleConfigImpl config;
final String moduleXml = moduleArg.getValue(parsedCmd);
if(moduleXml != null) {
config = null;
final File source = new File(ctx.getCurrentDir(), moduleXml);
if(!source.exists()) {
throw new CommandLineException("Failed to locate the file on the filesystem: " + source.getAbsolutePath());
}
copy(source, new File(moduleDir, "module.xml"));
} else {
config = new ModuleConfigImpl(moduleName);
}
for(File f : resourceFiles) {
copy(f, new File(moduleDir, f.getName()));
if(config != null) {
config.addResource(new ResourceRoot(f.getName()));
}
}
if(config != null) {
final String dependenciesStr = dependencies.getValue(parsedCmd);
if(dependenciesStr != null) {
final String[] depsArr = dependenciesStr.split(",+");
for(String dep : depsArr) {
// TODO validate dependencies
config.addDependency(new ModuleDependency(dep));
}
}
final String propsStr = props.getValue(parsedCmd);
if(propsStr != null) {
final String[] pairs = propsStr.split(",");
for (String pair : pairs) {
int equals = pair.indexOf('=');
if (equals == -1) {
throw new CommandFormatException("Property '" + pair + "' in '" + propsStr + "' is missing the equals sign.");
}
final String propName = pair.substring(0, equals);
if (propName.isEmpty()) {
throw new CommandFormatException("Property name is missing for '" + pair + "' in '" + propsStr + "'");
}
config.setProperty(propName, pair.substring(equals + 1));
}
}
final String slotVal = slot.getValue(parsedCmd);
if (slotVal != null) {
config.setSlot(slotVal);
}
final String mainCls = mainClass.getValue(parsedCmd);
if(mainCls != null) {
config.setMainClass(mainCls);
}
FileWriter moduleWriter = null;
final File moduleFile = new File(moduleDir, "module.xml");
try {
moduleWriter = new FileWriter(moduleFile);
XMLExtendedStreamWriter xmlWriter = create(XMLOutputFactory.newInstance().createXMLStreamWriter(moduleWriter));
config.writeContent(xmlWriter, null);
xmlWriter.flush();
} catch (IOException e) {
throw new CommandLineException("Failed to create file " + moduleFile.getAbsolutePath(), e);
} catch (XMLStreamException e) {
throw new CommandLineException("Failed to write to " + moduleFile.getAbsolutePath(), e);
} finally {
if(moduleWriter != null) {
try {
moduleWriter.close();
} catch (IOException e) {}
}
}
}
}
private void removeModule(ParsedCommandLine parsedCmd) throws CommandLineException {
final String moduleName = name.getValue(parsedCmd, true);
final File modulesDir = getModulesDir();
File modulePath = getModulePath(modulesDir, moduleName, slot.getValue(parsedCmd));
if(!modulePath.exists()) {
throw new CommandLineException("Failed to locate module " + moduleName + " at " + modulePath.getAbsolutePath());
}
final File[] moduleFiles = modulePath.listFiles();
if(moduleFiles != null) {
for(File f : moduleFiles) {
if(!f.delete()) {
throw new CommandLineException("Failed to delete " + f.getAbsolutePath());
}
}
}
while(!modulesDir.equals(modulePath)) {
if(modulePath.list().length > 0) {
break;
}
if(!modulePath.delete()) {
throw new CommandLineException("Failed to delete " + modulePath.getAbsolutePath());
}
modulePath = modulePath.getParentFile();
}
}
protected File getModulePath(File modulesDir, final String moduleName, String slot) throws CommandLineException {
return new File(modulesDir, moduleName.replace('.', File.separatorChar) + File.separatorChar + (slot == null ? "main" : slot));
}
protected File getModulesDir() throws CommandLineException {
if(modulesDir != null) {
return modulesDir;
}
final String modulesDirStr = WildFlySecurityManager.getEnvPropertyPrivileged(JBOSS_HOME, null);
if(modulesDirStr == null) {
throw new CommandLineException(JBOSS_HOME + " environment variable is not set.");
}
modulesDir = new File(modulesDirStr, "modules");
if(!modulesDir.exists()) {
throw new CommandLineException("Failed to locate the modules dir on the filesystem: " + modulesDir.getAbsolutePath());
}
return modulesDir;
}
public static XMLExtendedStreamWriter create(XMLStreamWriter writer) throws CommandLineException {
try {
// Use reflection to access package protected class FormattingXMLStreamWriter
// TODO: at some point the staxmapper API could be enhanced to make this unnecessary
Class clazz = Class.forName("org.jboss.staxmapper.FormattingXMLStreamWriter");
Constructor ctr = clazz.getConstructor( XMLStreamWriter.class );
ctr.setAccessible(true);
return (XMLExtendedStreamWriter)ctr.newInstance(new Object[]{writer});
} catch (Exception e) {
throw new CommandLineException("Failed to create xml stream writer.", e);
}
}
public static void copy(final File source, final File target) throws CommandLineException {
final byte[] buff = new byte[8192];
BufferedInputStream in = null;
BufferedOutputStream out = null;
int read;
try {
in = new BufferedInputStream(new FileInputStream(source));
out = new BufferedOutputStream(new FileOutputStream(target));
while ((read = in.read(buff)) != -1) {
out.write(buff, 0, read);
}
out.flush();
} catch (FileNotFoundException e) {
throw new CommandLineException("Failed to locate the file on the filesystem copying " +
source.getAbsolutePath() + " to " + target.getAbsolutePath(), e);
} catch (IOException e) {
throw new CommandLineException("Failed to copy " + source.getAbsolutePath() + " to " + target.getAbsolutePath(), e);
} finally {
try {
if(out != null) {
out.close();
}
} catch(IOException e) {}
try {
if(in != null) {
in.close();
}
} catch(IOException e) {}
}
}
}
