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This is the master POM file for Oracle's Implementation of the JSF 2.2 Specification.
/*
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*
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*
* 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
* https://glassfish.dev.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:
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* If you wish your version of this file to be governed by only the CDDL or
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*/
package com.sun.faces.spi;
import com.sun.faces.util.Util;
import com.sun.faces.util.FacesLogger;
import javax.faces.FacesException;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.List;
import java.util.Enumeration;
import java.util.ArrayList;
import java.util.Arrays;
import java.net.URL;
import java.net.URLConnection;
import java.io.IOException;
import java.io.InputStream;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.lang.reflect.Constructor;
/**
*
* Base class for service discovery.
*
*/
final class ServiceFactoryUtils {
private static final Logger LOGGER = FacesLogger.APPLICATION.getLogger();
private static final String[] EMPTY_ARRAY = new String[0];
// ---------------------------------------------------------- Public Methods
static Object getProviderFromEntry(String entry, Class[] argumentTypes, Object[] arguments) {
if (entry == null) {
return null;
}
try {
Class clazz = Util.loadClass(entry, null);
Constructor c = clazz.getDeclaredConstructor(argumentTypes);
if (c == null) {
throw new FacesException("Unable to find constructor accepting arguments: " + Arrays.toString(arguments));
}
return c.newInstance(arguments);
} catch (Exception e) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, e.toString(), e);
}
return null;
}
}
static String[] getServiceEntries(String key) {
List results = null;
ClassLoader loader = Thread.currentThread().getContextClassLoader();
if (loader == null) {
return EMPTY_ARRAY;
}
Enumeration urls = null;
String serviceName = "META-INF/services/" + key;
try {
urls = loader.getResources(serviceName);
} catch (IOException ioe) {
if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.log(Level.SEVERE,
ioe.toString(),
ioe);
}
}
if (urls != null) {
InputStream input = null;
BufferedReader reader = null;
while (urls.hasMoreElements()) {
try {
if (results == null) {
results = new ArrayList();
}
URL url = urls.nextElement();
URLConnection conn = url.openConnection();
conn.setUseCaches(false);
input = conn.getInputStream();
if (input != null) {
try {
reader =
new BufferedReader(new InputStreamReader(input,
"UTF-8"));
} catch (Exception e) {
reader =
new BufferedReader(new InputStreamReader(input));
}
for (String line = reader.readLine();
line != null;
line = reader.readLine()) {
results.add(line.trim());
}
}
} catch (Exception e) {
if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.log(Level.SEVERE,
"jsf.spi.provider.cannot_read_service",
new Object[]{serviceName});
LOGGER.log(Level.SEVERE,
e.toString(),
e);
}
} finally {
if (input != null) {
try {
input.close();
} catch (Exception ignored) {
}
}
if (reader != null) {
try {
reader.close();
} catch (Exception ignored) {
}
}
}
}
}
return ((results != null && !results.isEmpty())
? results.toArray(new String[results.size()])
: EMPTY_ARRAY);
}
}