com.sun.jersey.spi.scanning.servlet.WebAppResourcesScanner Maven / Gradle / Ivy
Show all versions of ehcache Show documentation
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2010-2011 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* http://glassfish.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.jersey.spi.scanning.servlet;
import com.sun.jersey.core.spi.scanning.JarFileScanner;
import com.sun.jersey.core.spi.scanning.Scanner;
import com.sun.jersey.core.spi.scanning.ScannerException;
import com.sun.jersey.core.spi.scanning.ScannerListener;
import com.sun.jersey.core.util.Closing;
import javax.servlet.ServletContext;
import java.io.IOException;
import java.io.InputStream;
import java.util.Set;
/**
* A scanner that recursively scans resources within a Web application.
*
* @author [email protected]
*/
public class WebAppResourcesScanner implements Scanner {
private final String[] paths;
private final ServletContext sc;
/**
* Scan from a set of web resource paths.
*
*
* @param paths an array of web resource paths.
* @param sc
*/
public WebAppResourcesScanner(final String[] paths, final ServletContext sc) {
this.paths = paths;
this.sc = sc;
}
// Scanner
public void scan(final ScannerListener cfl) {
for (final String path : paths) {
scan(path, cfl);
}
}
private void scan(final String root, final ScannerListener cfl) {
final Set resourcePaths = sc.getResourcePaths(root);
if(resourcePaths == null)
return;
for (final String resourcePath : resourcePaths) {
if (resourcePath.endsWith("/")) {
scan(resourcePath, cfl);
} else if (resourcePath.endsWith(".jar")) {
try {
new Closing(sc.getResourceAsStream(resourcePath)).f(new Closing.Closure() {
public void f(final InputStream in) throws IOException {
JarFileScanner.scan(in, "", cfl);
}
});
} catch (IOException ex) {
throw new ScannerException("IO error scanning jar " + resourcePath, ex);
}
} else if (cfl.onAccept(resourcePath)) {
try {
new Closing(sc.getResourceAsStream(resourcePath)).f(new Closing.Closure() {
public void f(final InputStream in) throws IOException {
cfl.onProcess(resourcePath, in);
}
});
} catch (IOException ex) {
throw new ScannerException("IO error scanning resource " + resourcePath, ex);
}
}
}
}
}