Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/*
* JBoss, Home of Professional Open Source.
* Copyright (c) 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.modules;
import java.io.IOException;
import java.net.URL;
import java.util.Collection;
import java.util.Collections;
import java.util.jar.Attributes;
import java.util.jar.Manifest;
/**
* An abstract resource loader implementation.
*
* @author Carlo de Wolf
*/
public abstract class AbstractResourceLoader implements ResourceLoader {
private static String getDefinedAttribute(Attributes.Name name, Attributes entryAttribute, Attributes mainAttribute) {
final String value = entryAttribute == null ? null : entryAttribute.getValue(name);
return value == null ? mainAttribute == null ? null : mainAttribute.getValue(name) : value;
}
/**
* Convenience method to get a package specification from a {@code Manifest}.
*
* @param name the (dot-separated) package name
* @param manifest the {@code Manifest} instance
* @param rootUrl the code source URL
* @return the package specification
*/
protected static PackageSpec getPackageSpec(final String name, final Manifest manifest, final URL rootUrl) {
final PackageSpec spec = new PackageSpec();
if (manifest == null) {
return null;
}
final Attributes mainAttribute = manifest.getMainAttributes();
final String path = name.replace('.', '/').concat("/");
final Attributes entryAttribute = manifest.getAttributes(path);
spec.setSpecTitle(getDefinedAttribute(Attributes.Name.SPECIFICATION_TITLE, entryAttribute, mainAttribute));
spec.setSpecVersion(getDefinedAttribute(Attributes.Name.SPECIFICATION_VERSION, entryAttribute, mainAttribute));
spec.setSpecVendor(getDefinedAttribute(Attributes.Name.SPECIFICATION_VENDOR, entryAttribute, mainAttribute));
spec.setImplTitle(getDefinedAttribute(Attributes.Name.IMPLEMENTATION_TITLE, entryAttribute, mainAttribute));
spec.setImplVersion(getDefinedAttribute(Attributes.Name.IMPLEMENTATION_VERSION, entryAttribute, mainAttribute));
spec.setImplVendor(getDefinedAttribute(Attributes.Name.IMPLEMENTATION_VENDOR, entryAttribute, mainAttribute));
if (Boolean.parseBoolean(getDefinedAttribute(Attributes.Name.SEALED, entryAttribute, mainAttribute))) {
spec.setSealBase(rootUrl);
}
return spec;
}
/**
* Get the name of the root represented by this resource loader. Returns an empty string by default.
*
* @return the name of the root
*/
public String getRootName() {
return "";
}
/**
* Get the class specification for the given class name. If no matching class is found, {@code null} is returned.
* Returns {@code null} by default.
*
* @param fileName the fileName of the class, e.g. for the class org.jboss.modules.ResourceLoader the
* fileName will be org/jboss/modules/ResourceLoader.class
*
* @return the class specification, or {@code null} if the named class is not found
*
* @throws java.io.IOException if an I/O error occurs
*/
public ClassSpec getClassSpec(final String fileName) throws IOException {
return null;
}
/**
* Get the package specification for the given directory name. Always returns a package specification; this method
* cannot be used to test for the existence of a package. A package spec should always be acquired from the same
* resource loader which provided the class specification. The directory name will always be specified using "{@code
* /}" separators. Returns {@code null} by default.
*
* @param name the directory name
*
* @return the package specification
*
* @throws java.io.IOException if an I/O error occurs
*/
public PackageSpec getPackageSpec(final String name) throws IOException {
return null;
}
/**
* Get a resource with the given name. If no such resource is available, {@code null} is returned. The resource name
* will always be specified using "{@code /}" separators for the directory segments. Returns {@code null} by default.
*
* @param name the resource name
*
* @return the resource, or {@code null} if it is not available
*/
public Resource getResource(final String name) {
return null;
}
/**
* Get the absolute physical filesystem path for a library with the given name. The resultant path should be
* path-separated using "{@code /}" characters. Returns {@code null} by default.
*
* @param name the name
*
* @return the path or {@code null} if the library is not present
*/
public String getLibrary(final String name) {
return null;
}
/**
* Get the collection of resource paths. Called one time only when the resource loader is initialized. The paths
* should use "{@code /}" characters to separate the path segments. Returns an empty set by default.
*
* @return the resource paths
*/
public Collection getPaths() {
return Collections.emptySet();
}
}
