/jboss-as-7.1.1.Final/controller/src/main/java/org/jboss/as/controller/services/path/AbstractPathService.java
Java | 114 lines | 55 code | 17 blank | 42 comment | 25 complexity | befb16b62f62d04dfcf0b1aad776e74e MD5 | raw file
Possible License(s): LGPL-2.1, Apache-2.0
- /*
- * JBoss, Home of Professional Open Source.
- * Copyright 2010, 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.controller.services.path;
- import java.io.File;
- import org.jboss.msc.service.Service;
- import org.jboss.msc.service.ServiceName;
- import org.jboss.msc.service.StartContext;
- import org.jboss.msc.service.StartException;
- import org.jboss.msc.service.StopContext;
- /**
- * Abstract superclass for services that return a path.
- *
- * @author Brian Stansberry
- */
- public abstract class AbstractPathService implements Service<String> {
- private static final ServiceName SERVICE_NAME_BASE = ServiceName.JBOSS.append("server", "path");
- public static ServiceName pathNameOf(String pathName) {
- if (pathName == null) {
- throw new IllegalArgumentException("pathName is null");
- }
- return SERVICE_NAME_BASE.append(pathName);
- }
- /**
- * Checks whether the given path looks like an absolute Unix or Windows filesystem pathname <strong>without
- * regard for what the filesystem is underlying the Java Virtual Machine</strong>. A UNIX pathname is
- * absolute if its prefix is <code>"/"</code>. A Microsoft Windows pathname is absolute if its prefix is a drive
- * specifier followed by <code>"\\"</code>, or if its prefix is <code>"\\\\"</code>.
- * <p>
- * <strong>This method differs from simply creating a new {@code File} and calling {@link File#isAbsolute()} in that
- * its results do not change depending on what the filesystem underlying the Java Virtual Machine is. </strong>
- * </p>
- *
- * @param path the path
- *
- * @return {@code true} if {@code path} looks like an absolute Unix or Windows pathname
- */
- public static boolean isAbsoluteUnixOrWindowsPath(final String path) {
- if (path != null) {
- int length = path.length();
- if (length > 0) {
- char c0 = path.charAt(0);
- if (c0 == '/') {
- return true; // Absolute Unix path
- } else if (length > 1) {
- char c1 = path.charAt(1);
- if (c0 == '\\' && c1 == '\\') {
- return true; // Absolute UNC pathname "\\\\foo"
- } else if (length > 2 && c1 == ':' && path.charAt(2) == '\\' && isDriveLetter(c0) ) {
- return true; // Absolute local pathname "z:\\foo"
- }
- }
- }
- }
- return false;
- }
- private static boolean isDriveLetter(char c) {
- return ((c >= 'a') && (c <= 'z')) || ((c >= 'A') && (c <= 'Z'));
- }
- private String path;
- // ------------------------------------------------------------ Service
- @Override
- public void start(StartContext context) throws StartException {
- path = resolvePath();
- }
- @Override
- public void stop(StopContext context) {
- }
- @Override
- public String getValue() throws IllegalStateException {
- final String path = this.path;
- if(path == null) {
- throw new IllegalStateException();
- }
- return path;
- }
- // ------------------------------------------------------------ Protected
- protected abstract String resolvePath();
- }