com.wesleyhome.johksoftware.resource.JarResourceLoader Maven / Gradle / Ivy
/*
* Copyright 2011 JOHK Software
*
* 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 com.wesleyhome.johksoftware.resource;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.net.URLDecoder;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import com.wesleyhome.johksoftware.resource.api.ClassFilter;
import com.wesleyhome.johksoftware.resource.api.ClassFilterAdapter;
/**
* The JarResourceLoader class is a
*
* @author Justin Wesley
* @since 1.0.0
*/
class JarResourceLoader extends FileResourceLoader {
public static final String JAR_PROTOCOL = "jar";
private String jarFilePath;
JarResourceLoader(final URL jarURL) {
super(jarURL);
jarFilePath = jarURL.getFile();
String regex = "file:";
jarFilePath = jarFilePath.replaceFirst(regex, "");
if (jarFilePath.endsWith("!")) {
jarFilePath = jarFilePath.substring(0, jarFilePath.length() - 1);
}
}
/* (non-Javadoc)
* @see com.johksoftware.utilities.reflection.FileResourceLoader#getClasses(java.lang.String)
*/
@Override
public Set> getClasses(final String packageName) {
ClassFilter filter = new ClassFilterAdapter() {
/* (non-Javadoc)
* @see com.johksoftware.utilities.reflection.ClassFilterAdapter#evaluatePackage(java.lang.String)
*/
@Override
public boolean evaluatePackage(final String pkgName) {
return pkgName.startsWith(packageName);
}
};
return super.getClasses(packageName, filter);
}
@Override
protected Set> getClasses(final String packageName, final Class collectionTypeClass,
final ClassFilter classFilter, final boolean returnFirst) {
JarFile jarFile;
try {
String truePath = URLDecoder.decode(jarFilePath, "UTF-8");
jarFile = new JarFile(truePath);
} catch (UnsupportedEncodingException e) {
throw new RuntimeException(e);
} catch (IOException e) {
throw new RuntimeException(e);
}
List list = Collections.list(jarFile.entries());
Set> classes = new HashSet>();
for (JarEntry jarEntry : list) {
boolean isDirectory = jarEntry.isDirectory();
if (!isDirectory) {
String fileName = jarEntry.getName();
boolean isClassFile = fileName.endsWith(".class");
if (isClassFile) {
int lastSlash = fileName.lastIndexOf("/");
String newPackageName = fileName.substring(0, lastSlash).replace("/", ".");
String className = fileName.substring(lastSlash + 1, fileName.length() - 6);
String fullyQualifiedClassName = newPackageName + "." + className;
if (classFilter.evaluatePackage(newPackageName)) {
if (classFilter.evaluateClassName(fullyQualifiedClassName)) {
Class cls = getImplementedClass(fullyQualifiedClassName, collectionTypeClass);
if (cls != null && classFilter.evaluateClass(cls)) {
classes.add(cls);
}
if (returnFirst) {
return classes;
}
}
}
}
}
}
return classes;
}
}