This commit is contained in:
Lana Steuck 2015-11-30 13:28:08 -08:00
commit 79d5f875ac
7 changed files with 481 additions and 227 deletions

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@ -26,94 +26,46 @@
package javax.xml.soap;
import java.io.*;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.Properties;
import java.util.logging.Level;
import java.util.logging.Logger;
class FactoryFinder {
/**
* Creates an instance of the specified class using the specified
* {@code ClassLoader} object.
*
* @exception SOAPException if the given class could not be found
* or could not be instantiated
*/
private static Object newInstance(String className,
ClassLoader classLoader)
throws SOAPException
{
try {
Class spiClass = safeLoadClass(className, classLoader);
return spiClass.newInstance();
private static final Logger logger = Logger.getLogger("javax.xml.soap");
} catch (ClassNotFoundException x) {
throw new SOAPException("Provider " + className + " not found", x);
} catch (Exception x) {
throw new SOAPException("Provider " + className + " could not be instantiated: " + x, x);
}
}
private static final ServiceLoaderUtil.ExceptionHandler<SOAPException> EXCEPTION_HANDLER =
new ServiceLoaderUtil.ExceptionHandler<SOAPException>() {
@Override
public SOAPException createException(Throwable throwable, String message) {
return new SOAPException(message, throwable);
}
};
/**
* Finds the implementation {@code Class} object for the given
* factory name, or null if that fails.
* <P>
* This method is package private so that this code can be shared.
*
* @return the {@code Class} object of the specified message factory;
* or {@code null}
*
* @param factoryId the name of the factory to find, which is
* a system property
* @exception SOAPException if there is a SOAP error
*/
static Object find(String factoryId)
throws SOAPException
{
return find(factoryId, null, false);
}
/**
* Finds the implementation {@code Class} object for the given
* factory name, or if that fails, finds the {@code Class} object
* for the given fallback class name. The arguments supplied must be
* used in order. If using the first argument is successful, the second
* one will not be used.
* <P>
* This method is package private so that this code can be shared.
*
* @return the {@code Class} object of the specified message factory;
* may be {@code null}
*
* @param factoryId the name of the factory to find, which is
* a system property
* @param fallbackClassName the implementation class name, which is
* to be used only if nothing else
* is found; {@code null} to indicate that
* there is no fallback class name
* @exception SOAPException if there is a SOAP error
*/
static Object find(String factoryId, String fallbackClassName)
throws SOAPException
{
return find(factoryId, fallbackClassName, true);
}
/**
* Finds the implementation {@code Class} object for the given
* factory name, or if that fails, finds the {@code Class} object
* for the given default class name, but only if {@code tryFallback}
* is {@code true}. The arguments supplied must be used in order
* If using the first argument is successful, the second one will not
* be used. Note the default class name may be needed even if fallback
* is not to be attempted, so certain error conditions can be handled.
* factory type. If it fails and {@code tryFallback} is {@code true}
* finds the {@code Class} object for the given default class name.
* The arguments supplied must be used in order
* Note the default class name may be needed even if fallback
* is not to be attempted in order to check if requested type is fallback.
* <P>
* This method is package private so that this code can be shared.
*
* @return the {@code Class} object of the specified message factory;
* may not be {@code null}
*
* @param factoryId the name of the factory to find, which is
* a system property
* @param factoryClass factory abstract class or interface to be found
* @param deprecatedFactoryId deprecated name of a factory; it is used for types
* where class name is different from a name
* being searched (in previous spec).
* @param defaultClassName the implementation class name, which is
* to be used only if nothing else
* is found; {@code null} to indicate
@ -122,63 +74,52 @@ class FactoryFinder {
* fallback
* @exception SOAPException if there is a SOAP error
*/
static Object find(String factoryId, String defaultClassName,
boolean tryFallback) throws SOAPException {
ClassLoader classLoader;
try {
classLoader = Thread.currentThread().getContextClassLoader();
} catch (Exception x) {
throw new SOAPException(x.toString(), x);
}
@SuppressWarnings("unchecked")
static <T> T find(Class<T> factoryClass,
String defaultClassName,
boolean tryFallback, String deprecatedFactoryId) throws SOAPException {
ClassLoader tccl = ServiceLoaderUtil.contextClassLoader(EXCEPTION_HANDLER);
String factoryId = factoryClass.getName();
// Use the system property first
try {
String systemProp =
System.getProperty( factoryId );
if( systemProp!=null) {
return newInstance(systemProp, classLoader);
String className = fromSystemProperty(factoryId, deprecatedFactoryId);
if (className != null) {
Object result = newInstance(className, defaultClassName, tccl);
if (result != null) {
return (T) result;
}
} catch (SecurityException se) {
}
// try to read from $java.home/lib/jaxm.properties
try {
String javah=System.getProperty( "java.home" );
String configFile = javah + File.separator +
"lib" + File.separator + "jaxm.properties";
File f=new File( configFile );
if( f.exists()) {
Properties props=new Properties();
props.load( new FileInputStream(f));
String factoryClassName = props.getProperty(factoryId);
return newInstance(factoryClassName, classLoader);
className = fromJDKProperties(factoryId, deprecatedFactoryId);
if (className != null) {
Object result = newInstance(className, defaultClassName, tccl);
if (result != null) {
return (T) result;
}
} catch(Exception ex ) {
}
String serviceId = "META-INF/services/" + factoryId;
// standard services: java.util.ServiceLoader
T factory = ServiceLoaderUtil.firstByServiceLoader(
factoryClass,
logger,
EXCEPTION_HANDLER);
if (factory != null) {
return factory;
}
// try to find services in CLASSPATH
try {
InputStream is=null;
if (classLoader == null) {
is=ClassLoader.getSystemResourceAsStream(serviceId);
} else {
is=classLoader.getResourceAsStream(serviceId);
className = fromMetaInfServices(deprecatedFactoryId, tccl);
if (className != null) {
logger.log(Level.WARNING,
"Using deprecated META-INF/services mechanism with non-standard property: {0}. " +
"Property {1} should be used instead.",
new Object[]{deprecatedFactoryId, factoryId});
Object result = newInstance(className, defaultClassName, tccl);
if (result != null) {
return (T) result;
}
if( is!=null ) {
BufferedReader rd =
new BufferedReader(new InputStreamReader(is, "UTF-8"));
String factoryClassName = rd.readLine();
rd.close();
if (factoryClassName != null &&
! "".equals(factoryClassName)) {
return newInstance(factoryClassName, classLoader);
}
}
} catch( Exception ex ) {
}
// If not found and fallback should not be tried, return a null result.
@ -191,46 +132,133 @@ class FactoryFinder {
throw new SOAPException(
"Provider for " + factoryId + " cannot be found", null);
}
return newInstance(defaultClassName, classLoader);
return (T) newInstance(defaultClassName, defaultClassName, tccl);
}
/**
* Loads the class, provided that the calling thread has an access to the
* class being loaded. If this is the specified default factory class and it
* is restricted by package.access we get a SecurityException and can do a
* Class.forName() on it so it will be loaded by the bootstrap class loader.
*/
private static Class safeLoadClass(String className,
ClassLoader classLoader)
throws ClassNotFoundException {
try {
// make sure that the current thread has an access to the package of the given name.
SecurityManager s = System.getSecurityManager();
if (s != null) {
int i = className.lastIndexOf('.');
if (i != -1) {
s.checkPackageAccess(className.substring(0, i));
// in most cases there is no deprecated factory id
static <T> T find(Class<T> factoryClass,
String defaultClassName,
boolean tryFallback) throws SOAPException {
return find(factoryClass, defaultClassName, tryFallback, null);
}
private static Object newInstance(String className, String defaultClassName, ClassLoader tccl) throws SOAPException {
return ServiceLoaderUtil.newInstance(
className,
defaultClassName,
tccl,
EXCEPTION_HANDLER);
}
// used only for deprecatedFactoryId;
// proper factoryId searched by java.util.ServiceLoader
private static String fromMetaInfServices(String deprecatedFactoryId, ClassLoader tccl) {
String serviceId = "META-INF/services/" + deprecatedFactoryId;
logger.log(Level.FINE, "Checking deprecated {0} resource", serviceId);
try (InputStream is =
tccl == null ?
ClassLoader.getSystemResourceAsStream(serviceId)
:
tccl.getResourceAsStream(serviceId)) {
if (is != null) {
String factoryClassName;
try (InputStreamReader isr = new InputStreamReader(is, StandardCharsets.UTF_8);
BufferedReader rd = new BufferedReader(isr)) {
factoryClassName = rd.readLine();
}
logFound(factoryClassName);
if (factoryClassName != null && !"".equals(factoryClassName)) {
return factoryClassName;
}
}
if (classLoader == null)
return Class.forName(className);
else
return classLoader.loadClass(className);
} catch (SecurityException se) {
// (only) default implementation can be loaded
// using bootstrap class loader:
if (isDefaultImplementation(className))
return Class.forName(className);
} catch (IOException e) {
// keep original behavior
}
return null;
}
throw se;
private static String fromJDKProperties(String factoryId, String deprecatedFactoryId) {
Path path = null;
try {
String JAVA_HOME = System.getProperty("java.home");
path = Paths.get(JAVA_HOME, "conf", "jaxm.properties");
logger.log(Level.FINE, "Checking configuration in {0}", path);
// to ensure backwards compatibility
if (!Files.exists(path)) {
path = Paths.get(JAVA_HOME, "lib", "jaxm.properties");
}
logger.log(Level.FINE, "Checking configuration in {0}", path);
if (Files.exists(path)) {
Properties props = new Properties();
try (InputStream inputStream = Files.newInputStream(path)) {
props.load(inputStream);
}
// standard property
logger.log(Level.FINE, "Checking property {0}", factoryId);
String factoryClassName = props.getProperty(factoryId);
logFound(factoryClassName);
if (factoryClassName != null) {
return factoryClassName;
}
// deprecated property
if (deprecatedFactoryId != null) {
logger.log(Level.FINE, "Checking deprecated property {0}", deprecatedFactoryId);
factoryClassName = props.getProperty(deprecatedFactoryId);
logFound(factoryClassName);
if (factoryClassName != null) {
logger.log(Level.WARNING,
"Using non-standard property: {0}. Property {1} should be used instead.",
new Object[]{deprecatedFactoryId, factoryId});
return factoryClassName;
}
}
}
} catch (Exception ignored) {
logger.log(Level.SEVERE, "Error reading SAAJ configuration from [" + path +
"] file. Check it is accessible and has correct format.", ignored);
}
return null;
}
private static String fromSystemProperty(String factoryId, String deprecatedFactoryId) {
String systemProp = getSystemProperty(factoryId);
if (systemProp != null) {
return systemProp;
}
if (deprecatedFactoryId != null) {
systemProp = getSystemProperty(deprecatedFactoryId);
if (systemProp != null) {
logger.log(Level.WARNING,
"Using non-standard property: {0}. Property {1} should be used instead.",
new Object[] {deprecatedFactoryId, factoryId});
return systemProp;
}
}
return null;
}
private static String getSystemProperty(String property) {
logger.log(Level.FINE, "Checking system property {0}", property);
String value = AccessController.doPrivileged(
(PrivilegedAction<String>) () -> System.getProperty(property));
logFound(value);
return value;
}
private static void logFound(String value) {
if (value != null) {
logger.log(Level.FINE, " found {0}", value);
} else {
logger.log(Level.FINE, " not found");
}
}
private static boolean isDefaultImplementation(String className) {
return MessageFactory.DEFAULT_MESSAGE_FACTORY.equals(className) ||
SOAPFactory.DEFAULT_SOAP_FACTORY.equals(className) ||
SOAPConnectionFactory.DEFAULT_SOAP_CONNECTION_FACTORY.equals(className) ||
SAAJMetaFactory.DEFAULT_META_FACTORY_CLASS.equals(className);
}
}

View File

@ -68,27 +68,15 @@ import java.io.InputStream;
*/
public abstract class MessageFactory {
static final String DEFAULT_MESSAGE_FACTORY
private static final String DEFAULT_MESSAGE_FACTORY
= "com.sun.xml.internal.messaging.saaj.soap.ver1_1.SOAPMessageFactory1_1Impl";
static private final String MESSAGE_FACTORY_PROPERTY
= "javax.xml.soap.MessageFactory";
/**
* Creates a new {@code MessageFactory} object that is an instance
* of the default implementation (SOAP 1.1),
* of the default implementation (SOAP 1.1).
*
* This method uses the following ordered lookup procedure to determine the MessageFactory implementation class to load:
* <UL>
* <LI> Use the javax.xml.soap.MessageFactory system property.
* <LI> Use the properties file "lib/jaxm.properties" in the JRE directory. This configuration file is in standard
* java.util.Properties format and contains the fully qualified name of the implementation class with the key being the
* system property defined above.
* <LI> Use the Services API (as detailed in the JAR specification), if available, to determine the classname. The Services API
* will look for a classname in the file META-INF/services/javax.xml.soap.MessageFactory in jars available to the runtime.
* <LI> Use the SAAJMetaFactory instance to locate the MessageFactory implementation class.
* </UL>
* This method uses the lookup procedure specified in {@link javax.xml.soap} to locate and load the
* {@link javax.xml.soap.MessageFactory} class.
*
* @return a new instance of a {@code MessageFactory}
*
@ -103,7 +91,7 @@ public abstract class MessageFactory {
try {
MessageFactory factory = (MessageFactory) FactoryFinder.find(
MESSAGE_FACTORY_PROPERTY,
MessageFactory.class,
DEFAULT_MESSAGE_FACTORY,
false);

View File

@ -27,25 +27,49 @@ package javax.xml.soap;
/**
* The access point for the implementation classes of the factories defined in the
* SAAJ API. All of the {@code newInstance} methods defined on factories in
* SAAJ 1.3 defer to instances of this class to do the actual object creation.
* SAAJ API. The {@code newInstance} methods defined on factories {@link SOAPFactory} and
* {@link MessageFactory} in SAAJ 1.3 defer to instances of this class to do the actual object creation.
* The implementations of {@code newInstance()} methods (in SOAPFactory and MessageFactory)
* that existed in SAAJ 1.2 have been updated to also delegate to the SAAJMetaFactory when the SAAJ 1.2
* defined lookup fails to locate the Factory implementation class name.
*
* <p>
* SAAJMetaFactory is a service provider interface. There are no public methods on this
* SAAJMetaFactory is a service provider interface and it uses similar lookup mechanism as other SAAJ factories
* to get actual instance:
*
* <ul>
* <li>If a system property with name {@code javax.xml.soap.SAAJMetaFactory} exists then its value is assumed
* to be the fully qualified name of the implementation class. This phase of the look up enables per-JVM
* override of the SAAJ implementation.
* <li>If a system property with name {@code javax.xml.soap.MetaFactory} exists then its value is assumed
* to be the fully qualified name of the implementation class. This property, defined by previous specifications
* (up to 1.3), is still supported, but it is strongly recommended to migrate to new property
* {@code javax.xml.soap.SAAJMetaFactory}.
* <li>Use the configuration file "jaxm.properties". The file is in standard {@link java.util.Properties} format
* and typically located in the {@code conf} directory of the Java installation. It contains the fully qualified
* name of the implementation class with key {@code javax.xml.soap.SAAJMetaFactory}. If no such property is defined,
* again, property with key {@code javax.xml.soap.MetaFactory} is used. It is strongly recommended to migrate to
* new property {@code javax.xml.soap.SAAJMetaFactory}.
* <li> Use the service-provider loading facilities, defined by the {@link java.util.ServiceLoader} class,
* to attempt to locate and load an implementation of the service using the {@linkplain
* java.util.ServiceLoader#load(java.lang.Class) default loading mechanism}.
* <li> Finally, if all the steps above fail, platform default implementation is used.
* </ul>
*
* <p>
* There are no public methods on this
* class.
*
* @author SAAJ RI Development Team
* @since 1.6, SAAJ 1.3
*/
public abstract class SAAJMetaFactory {
static private final String META_FACTORY_CLASS_PROPERTY =
"javax.xml.soap.MetaFactory";
static final String DEFAULT_META_FACTORY_CLASS =
"com.sun.xml.internal.messaging.saaj.soap.SAAJMetaFactoryImpl";
private static final String META_FACTORY_DEPRECATED_CLASS_PROPERTY =
"javax.xml.soap.MetaFactory";
private static final String DEFAULT_META_FACTORY_CLASS =
"com.sun.xml.internal.messaging.saaj.soap.SAAJMetaFactoryImpl";
/**
* Creates a new instance of a concrete {@code SAAJMetaFactory} object.
@ -54,27 +78,20 @@ public abstract class SAAJMetaFactory {
* implementation. Service providers provide the name of their {@code SAAJMetaFactory}
* implementation.
*
* This method uses the following ordered lookup procedure to determine the SAAJMetaFactory implementation class to load:
* <UL>
* <LI> Use the javax.xml.soap.MetaFactory system property.
* <LI> Use the properties file "lib/jaxm.properties" in the JRE directory. This configuration file is in standard
* java.util.Properties format and contains the fully qualified name of the implementation class with the key being the
* system property defined above.
* <LI> Use the Services API (as detailed in the JAR specification), if available, to determine the classname. The Services API
* will look for a classname in the file META-INF/services/javax.xml.soap.MetaFactory in jars available to the runtime.
* <LI> Default to com.sun.xml.internal.messaging.saaj.soap.SAAJMetaFactoryImpl.
* </UL>
* This method uses the lookup procedure specified in {@link javax.xml.soap} to locate and load the
* {@link javax.xml.soap.SAAJMetaFactory} class.
*
* @return a concrete {@code SAAJMetaFactory} object
* @exception SOAPException if there is an error in creating the {@code SAAJMetaFactory}
*/
static SAAJMetaFactory getInstance() throws SOAPException {
try {
SAAJMetaFactory instance =
(SAAJMetaFactory) FactoryFinder.find(
META_FACTORY_CLASS_PROPERTY,
DEFAULT_META_FACTORY_CLASS);
return instance;
return FactoryFinder.find(
SAAJMetaFactory.class,
DEFAULT_META_FACTORY_CLASS,
true,
META_FACTORY_DEPRECATED_CLASS_PROPERTY);
} catch (Exception e) {
throw new SOAPException(
"Unable to create SAAJ meta-factory" + e.getMessage());
@ -88,6 +105,7 @@ public abstract class SAAJMetaFactory {
* the given {@code String} protocol.
*
* @param protocol a {@code String} indicating the protocol
* @return a {@link MessageFactory}, not null
* @exception SOAPException if there is an error in creating the
* MessageFactory
* @see SOAPConstants#SOAP_1_1_PROTOCOL
@ -102,6 +120,7 @@ public abstract class SAAJMetaFactory {
* the given {@code String} protocol.
*
* @param protocol a {@code String} indicating the protocol
* @return a {@link SOAPFactory}, not null
* @exception SOAPException if there is an error in creating the
* SOAPFactory
* @see SOAPConstants#SOAP_1_1_PROTOCOL

View File

@ -36,23 +36,21 @@ package javax.xml.soap;
* @since 1.6
*/
public abstract class SOAPConnectionFactory {
/**
* A constant representing the default value for a {@code SOAPConnection}
* object. The default is the point-to-point SOAP connection.
*/
static final String DEFAULT_SOAP_CONNECTION_FACTORY
= "com.sun.xml.internal.messaging.saaj.client.p2p.HttpSOAPConnectionFactory";
/**
* A constant representing the {@code SOAPConnection} class.
*/
static private final String SF_PROPERTY
= "javax.xml.soap.SOAPConnectionFactory";
private static final String DEFAULT_SOAP_CONNECTION_FACTORY
= "com.sun.xml.internal.messaging.saaj.client.p2p.HttpSOAPConnectionFactory";
/**
* Creates an instance of the default
* {@code SOAPConnectionFactory} object.
*
* This method uses the lookup procedure specified in {@link javax.xml.soap} to locate and load the
* {@link javax.xml.soap.SOAPConnectionFactory} class.
*
* @return a new instance of a default
* {@code SOAPConnectionFactory} object
*
@ -66,9 +64,10 @@ public abstract class SOAPConnectionFactory {
throws SOAPException, UnsupportedOperationException
{
try {
return (SOAPConnectionFactory)
FactoryFinder.find(SF_PROPERTY,
DEFAULT_SOAP_CONNECTION_FACTORY);
return FactoryFinder.find(
SOAPConnectionFactory.class,
DEFAULT_SOAP_CONNECTION_FACTORY,
true);
} catch (Exception ex) {
throw new SOAPException("Unable to create SOAP connection factory: "
+ex.getMessage());

View File

@ -47,18 +47,11 @@ import org.w3c.dom.Element;
*/
public abstract class SOAPFactory {
/**
* A constant representing the property used to lookup the name of
* a {@code SOAPFactory} implementation class.
*/
static private final String SOAP_FACTORY_PROPERTY =
"javax.xml.soap.SOAPFactory";
/**
* Class name of default {@code SOAPFactory} implementation.
*/
static final String DEFAULT_SOAP_FACTORY
= "com.sun.xml.internal.messaging.saaj.soap.ver1_1.SOAPFactory1_1Impl";
private static final String DEFAULT_SOAP_FACTORY
= "com.sun.xml.internal.messaging.saaj.soap.ver1_1.SOAPFactory1_1Impl";
/**
* Creates a {@code SOAPElement} object from an existing DOM
@ -239,18 +232,10 @@ public abstract class SOAPFactory {
/**
* Creates a new {@code SOAPFactory} object that is an instance of
* the default implementation (SOAP 1.1),
* the default implementation (SOAP 1.1).
*
* This method uses the following ordered lookup procedure to determine the SOAPFactory implementation class to load:
* <UL>
* <LI> Use the javax.xml.soap.SOAPFactory system property.
* <LI> Use the properties file "lib/jaxm.properties" in the JRE directory. This configuration file is in standard
* java.util.Properties format and contains the fully qualified name of the implementation class with the key being the
* system property defined above.
* <LI> Use the Services API (as detailed in the JAR specification), if available, to determine the classname. The Services API
* will look for a classname in the file META-INF/services/javax.xml.soap.SOAPFactory in jars available to the runtime.
* <LI> Use the SAAJMetaFactory instance to locate the SOAPFactory implementation class.
* </UL>
* This method uses the lookup procedure specified in {@link javax.xml.soap} to locate and load the
* {@link javax.xml.soap.SOAPFactory} class.
*
* @return a new instance of a {@code SOAPFactory}
*
@ -262,10 +247,13 @@ public abstract class SOAPFactory {
throws SOAPException
{
try {
SOAPFactory factory = (SOAPFactory) FactoryFinder.find(
SOAP_FACTORY_PROPERTY, DEFAULT_SOAP_FACTORY, false);
if (factory != null)
return factory;
SOAPFactory factory = FactoryFinder.find(
SOAPFactory.class,
DEFAULT_SOAP_FACTORY,
false);
if (factory != null) return factory;
// leave it on SAAJMetaFactory
return newInstance(SOAPConstants.SOAP_1_1_PROTOCOL);
} catch (Exception ex) {
throw new SOAPException(

View File

@ -0,0 +1,125 @@
/*
* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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 General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package javax.xml.soap;
import java.util.ServiceLoader;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Shared ServiceLoader/FactoryFinder Utils shared among SAAJ, JAXB and JAXWS
* Class duplicated to all those projects.
*
* @author Miroslav.Kos@oracle.com
*/
class ServiceLoaderUtil {
static <P, T extends Exception> P firstByServiceLoader(Class<P> spiClass,
Logger logger,
ExceptionHandler<T> handler) throws T {
logger.log(Level.FINE, "Using java.util.ServiceLoader to find {0}", spiClass.getName());
// service discovery
try {
ServiceLoader<P> serviceLoader = ServiceLoader.load(spiClass);
for (P impl : serviceLoader) {
logger.fine("ServiceProvider loading Facility used; returning object [" +
impl.getClass().getName() + "]");
return impl;
}
} catch (Throwable t) {
throw handler.createException(t, "Error while searching for service [" + spiClass.getName() + "]");
}
return null;
}
static void checkPackageAccess(String className) {
// make sure that the current thread has an access to the package of the given name.
SecurityManager s = System.getSecurityManager();
if (s != null) {
int i = className.lastIndexOf('.');
if (i != -1) {
s.checkPackageAccess(className.substring(0, i));
}
}
}
static Class nullSafeLoadClass(String className, ClassLoader classLoader) throws ClassNotFoundException {
if (classLoader == null) {
return Class.forName(className);
} else {
return classLoader.loadClass(className);
}
}
// Returns instance of required class. It checks package access (security)
// unless it is defaultClassname. It means if you are trying to instantiate
// default implementation (fallback), pass the class name to both first and second parameter.
static <T extends Exception> Object newInstance(String className,
String defaultImplClassName, ClassLoader classLoader,
final ExceptionHandler<T> handler) throws T {
try {
return safeLoadClass(className, defaultImplClassName, classLoader).newInstance();
} catch (ClassNotFoundException x) {
throw handler.createException(x, "Provider " + className + " not found");
} catch (Exception x) {
throw handler.createException(x, "Provider " + className + " could not be instantiated: " + x);
}
}
static Class safeLoadClass(String className,
String defaultImplClassName,
ClassLoader classLoader) throws ClassNotFoundException {
try {
checkPackageAccess(className);
} catch (SecurityException se) {
// anyone can access the platform default factory class without permission
if (defaultImplClassName != null && defaultImplClassName.equals(className)) {
return Class.forName(className);
}
// not platform default implementation ...
throw se;
}
return nullSafeLoadClass(className, classLoader);
}
static <T extends Exception> ClassLoader contextClassLoader(ExceptionHandler<T> exceptionHandler) throws T {
try {
return Thread.currentThread().getContextClassLoader();
} catch (Exception x) {
throw exceptionHandler.createException(x, x.toString());
}
}
static abstract class ExceptionHandler<T extends Exception> {
public abstract T createException(Throwable throwable, String message);
}
}

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@ -0,0 +1,107 @@
/*
* Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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 General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* Provides the API for creating and building SOAP messages. This package
* is defined in the <i>SOAP with Attachments API for Java<sup><font size="-2">TM</font></sup>
* (SAAJ) 1.4</i> specification.
*
* <p> The API in the <code>javax.xml.soap</code> package allows you to do the following:
*
* <ul>
* <li>create a point-to-point connection to a specified endpoint
* <li>create a SOAP message
* <li>create an XML fragment
* <li>add content to the header of a SOAP message
* <li>add content to the body of a SOAP message
* <li>create attachment parts and add content to them
* <li>access/add/modify parts of a SOAP message
* <li>create/add/modify SOAP fault information
* <li>extract content from a SOAP message
* <li>send a SOAP request-response message
* </ul>
*
* <p>
* In addition the APIs in the <code>javax.xml.soap</code> package extend
* their counterparts in the <code>org.w3c.dom</code> package. This means that
* the <code>SOAPPart</code> of a <code>SOAPMessage</code> is also a DOM Level
* 2 <code>Document</code>, and can be manipulated as such by applications,
* tools and libraries that use DOM (see http://www.w3.org/DOM/ for more information).
* It is important to note that, while it is possible to use DOM APIs to add
* ordinary DOM nodes to a SAAJ tree, the SAAJ APIs are still required to return
* SAAJ types when examining or manipulating the tree. In order to accomplish
* this the SAAJ APIs (specifically {@link javax.xml.soap.SOAPElement#getChildElements()})
* are allowed to silently replace objects that are incorrectly typed relative
* to SAAJ requirements with equivalent objects of the required type. These
* replacements must never cause the logical structure of the tree to change,
* so from the perspective of the DOM APIs the tree will remain unchanged. However,
* the physical composition of the tree will have changed so that references
* to the nodes that were replaced will refer to nodes that are no longer a
* part of the tree. The SAAJ APIs are not allowed to make these replacements
* if they are not required so the replacement objects will never subsequently
* be silently replaced by future calls to the SAAJ API.
* <p>
* What this means in practical terms is that an application that starts to use
* SAAJ APIs on a tree after manipulating it using DOM APIs must assume that the
* tree has been translated into an all SAAJ tree and that any references to objects
* within the tree that were obtained using DOM APIs are no longer valid. Switching
* from SAAJ APIs to DOM APIs is not allowed to cause invalid references and
* neither is using SAAJ APIs exclusively. It is only switching from using DOM
* APIs on a particular SAAJ tree to using SAAJ APIs that causes the risk of
* invalid references.
*
* <h3>Discovery of SAAJ implementation</h3>
* <p>
* There are several factories defined in the SAAJ API to discover and load specific implementation:
*
* <ul>
* <li>{@link javax.xml.soap.SOAPFactory}
* <li>{@link javax.xml.soap.MessageFactory}
* <li>{@link javax.xml.soap.SOAPConnectionFactory}
* <li>{@link javax.xml.soap.SAAJMetaFactory}
* </ul>
*
* First three define {@code newInstance()} method which uses a common lookup procedure to determine
* the implementation class:
*
* <ul>
* <li>Checks if a system property with the same name as the factory class is set (e.g.
* {@code javax.xml.soap.SOAPFactory}). If such property exists then its value is assumed to be the fully qualified
* name of the implementation class. This phase of the look up enables per-JVM override of the SAAJ implementation.
* <li>Use the configuration file "jaxm.properties". The file is in standard
* {@link java.util.Properties} format and typically located in the
* {@code conf} directory of the Java installation. It contains the fully qualified
* name of the implementation class with the key being the system property
* defined above.
* <li> Use the service-provider loading facilities, defined by the {@link java.util.ServiceLoader} class,
* to attempt to locate and load an implementation of the service using the {@linkplain
* java.util.ServiceLoader#load(java.lang.Class) default loading mechanism}.
* <li> Finally, if all the steps above fail, {@link javax.xml.soap.SAAJMetaFactory} instance is used
* to locate specific implementation (for {@link javax.xml.soap.MessageFactory} and {@link javax.xml.soap.SOAPFactory})
* or platform default implementation is used ({@link javax.xml.soap.SOAPConnectionFactory}).
* Whenever {@link javax.xml.soap.SAAJMetaFactory} is used, its lookup procedure to get actual instance is performed.
* </ul>
*/
package javax.xml.soap;