/*
* Copyright 2002-2010 the original author or authors.
*
* 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.springframework.core.io;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.net.URL;
import org.springframework.core.NestedIOException;
import org.springframework.util.Assert;
/**
* VFS based {@link Resource} implementation.
* Supports the corresponding VFS API versions on JBoss AS 5.x as well as 6.x.
*
* @author Ales Justin
* @author Juergen Hoeller
* @author Costin Leau
* @since 3.0
* @see org.jboss.virtual.VirtualFile
* @see org.jboss.vfs.VirtualFile
*/
public class VfsResource extends AbstractResource {
private final Object resource;
public VfsResource(Object resources) {
Assert.notNull(resources, "VirtualFile must not be null");
this.resource = resources;
}
public boolean exists() {
return VfsUtils.exists(this.resource);
}
public boolean isReadable() {
return VfsUtils.isReadable(this.resource);
}
public long lastModified() throws IOException {
return VfsUtils.getLastModified(this.resource);
}
public InputStream getInputStream() throws IOException {
return VfsUtils.getInputStream(this.resource);
}
public URL getURL() throws IOException {
try {
return VfsUtils.getURL(this.resource);
}
catch (Exception ex) {
throw new NestedIOException("Failed to obtain URL for file " + this.resource, ex);
}
}
public URI getURI() throws IOException {
try {
return VfsUtils.getURI(this.resource);
}
catch (Exception ex) {
throw new NestedIOException("Failed to obtain URI for " + this.resource, ex);
}
}
public File getFile() throws IOException {
return VfsUtils.getFile(this.resource);
}
public Resource createRelative(String relativePath) throws IOException {
if (!relativePath.startsWith(".") && relativePath.contains("/")) {
try {
return new VfsResource(VfsUtils.getChild(this.resource, relativePath));
}
catch (IOException ex) {
// fall back to getRelative
}
}
return new VfsResource(VfsUtils.getRelative(new URL(getURL(), relativePath)));
}
public String getFilename() {
return VfsUtils.getName(this.resource);
}
public String getDescription() {
return this.resource.toString();
}
@Override
public boolean equals(Object obj) {
return (obj == this || (obj instanceof VfsResource && this.resource.equals(((VfsResource) obj).resource)));
}
@Override
public int hashCode() {
return this.resource.hashCode();
}
}
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