feat(jdk8): move files to new folder to avoid resources compiled.
This commit is contained in:
116
jdkSrc/jdk8/com/sun/naming/internal/FactoryEnumeration.java
Normal file
116
jdkSrc/jdk8/com/sun/naming/internal/FactoryEnumeration.java
Normal file
@@ -0,0 +1,116 @@
|
||||
/*
|
||||
* Copyright (c) 1999, 2011, 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.
|
||||
*/
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||||
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package com.sun.naming.internal;
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import java.util.List;
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import javax.naming.NamingException;
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/**
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* The FactoryEnumeration is used for returning factory instances.
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*
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* @author Rosanna Lee
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* @author Scott Seligman
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*/
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// no need to implement Enumeration since this is only for internal use
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public final class FactoryEnumeration {
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// List<NamedWeakReference<Class | Object>>
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private List<NamedWeakReference<Object>> factories;
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private int posn = 0;
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private ClassLoader loader;
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|
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/**
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||||
* Records the input list and uses it directly to satisfy
|
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* hasMore()/next() requests. An alternative would have been to use
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* an enumeration/iterator from the list, but we want to update the
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* list so we keep the
|
||||
* original list. The list initially contains Class objects.
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* As each element is used, the Class object is replaced by an
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* instance of the Class itself; eventually, the list contains
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* only a list of factory instances and no more updates are required.
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*
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* <p> Both Class objects and factories are wrapped in weak
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* references so as not to prevent GC of the class loader. Each
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* weak reference is tagged with the factory's class name so the
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* class can be reloaded if the reference is cleared.
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*
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* @param factories A non-null list
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* @param loader The class loader of the list's contents
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*
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* This internal method is used with Thread Context Class Loader (TCCL),
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* please don't expose this method as public.
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*/
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FactoryEnumeration(List<NamedWeakReference<Object>> factories,
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ClassLoader loader) {
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this.factories = factories;
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this.loader = loader;
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}
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public Object next() throws NamingException {
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synchronized (factories) {
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NamedWeakReference<Object> ref = factories.get(posn++);
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Object answer = ref.get();
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if ((answer != null) && !(answer instanceof Class)) {
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return answer;
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}
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String className = ref.getName();
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|
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try {
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if (answer == null) { // reload class if weak ref cleared
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Class<?> cls = Class.forName(className, true, loader);
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answer = cls;
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}
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// Instantiate Class to get factory
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answer = ((Class) answer).newInstance();
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ref = new NamedWeakReference<>(answer, className);
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factories.set(posn-1, ref); // replace Class object or null
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return answer;
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} catch (ClassNotFoundException e) {
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NamingException ne =
|
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new NamingException("No longer able to load " + className);
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ne.setRootCause(e);
|
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throw ne;
|
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} catch (InstantiationException e) {
|
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NamingException ne =
|
||||
new NamingException("Cannot instantiate " + answer);
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||||
ne.setRootCause(e);
|
||||
throw ne;
|
||||
} catch (IllegalAccessException e) {
|
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NamingException ne = new NamingException("Cannot access " + answer);
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ne.setRootCause(e);
|
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throw ne;
|
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}
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||||
}
|
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}
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||||
|
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public boolean hasMore() {
|
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synchronized (factories) {
|
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return posn < factories.size();
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}
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}
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}
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48
jdkSrc/jdk8/com/sun/naming/internal/NamedWeakReference.java
Normal file
48
jdkSrc/jdk8/com/sun/naming/internal/NamedWeakReference.java
Normal file
@@ -0,0 +1,48 @@
|
||||
/*
|
||||
* Copyright (c) 2001, 2011, 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.
|
||||
*/
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package com.sun.naming.internal;
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/**
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* A NamedWeakReference is a WeakReference with an immutable string name.
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*
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* @author Scott Seligman
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||||
*/
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class NamedWeakReference<T> extends java.lang.ref.WeakReference<T> {
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private final String name;
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|
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NamedWeakReference(T referent, String name) {
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super(referent);
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this.name = name;
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||||
}
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||||
|
||||
String getName() {
|
||||
return name;
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||||
}
|
||||
}
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115
jdkSrc/jdk8/com/sun/naming/internal/ObjectFactoriesFilter.java
Normal file
115
jdkSrc/jdk8/com/sun/naming/internal/ObjectFactoriesFilter.java
Normal file
@@ -0,0 +1,115 @@
|
||||
/*
|
||||
* Copyright (c) 2020, 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.
|
||||
*/
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||||
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||||
package com.sun.naming.internal;
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import javax.naming.Reference;
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import sun.misc.ObjectInputFilter;
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import sun.misc.ObjectInputFilter.FilterInfo;
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||||
import sun.misc.ObjectInputFilter.Status;
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||||
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||||
import sun.security.util.SecurityProperties;
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||||
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||||
/**
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* This class implements the filter that validates object factories classes instantiated
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||||
* during {@link Reference} lookups.
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||||
* There is one system-wide filter instance per VM that can be set via
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||||
* the {@code "jdk.jndi.object.factoriesFilter"} system property value, or via
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||||
* setting the property in the security properties file. The system property value supersedes
|
||||
* the security property value. If none of the properties are specified the default
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||||
* "*" value is used.
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||||
* The filter is implemented as {@link ObjectInputFilter} with capabilities limited to the
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||||
* validation of a factory's class types only ({@linkplain FilterInfo#serialClass()}).
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||||
* Array length, number of object references, depth, and stream size filtering capabilities are
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||||
* not supported by the filter.
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||||
*/
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||||
public final class ObjectFactoriesFilter {
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||||
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||||
/**
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||||
* Checks if serial filter configured with {@code "jdk.jndi.object.factoriesFilter"}
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||||
* system property value allows instantiation of the specified objects factory class.
|
||||
* If the filter result is not {@linkplain Status#REJECTED REJECTED}, the filter will
|
||||
* allow the instantiation of objects factory class.
|
||||
*
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||||
* @param factoryClass objects factory class
|
||||
* @return true - if the factory is allowed to be instantiated; false - otherwise
|
||||
*/
|
||||
public static boolean canInstantiateObjectsFactory(Class<?> factoryClass) {
|
||||
return checkInput(() -> factoryClass);
|
||||
}
|
||||
|
||||
private static boolean checkInput(FactoryInfo factoryInfo) {
|
||||
Status result = GLOBAL.checkInput(factoryInfo);
|
||||
return result != Status.REJECTED;
|
||||
}
|
||||
|
||||
// FilterInfo to check if objects factory class is allowed by the system-wide
|
||||
// filter. Array length, number of object references, depth, and stream size
|
||||
// capabilities are ignored.
|
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@FunctionalInterface
|
||||
private interface FactoryInfo extends FilterInfo {
|
||||
@Override
|
||||
default long arrayLength() {
|
||||
return -1;
|
||||
}
|
||||
|
||||
@Override
|
||||
default long depth() {
|
||||
return 1;
|
||||
}
|
||||
|
||||
@Override
|
||||
default long references() {
|
||||
return 0;
|
||||
}
|
||||
|
||||
@Override
|
||||
default long streamBytes() {
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
// Prevent instantiation of the factories filter class
|
||||
private ObjectFactoriesFilter() {
|
||||
throw new InternalError("Not instantiable");
|
||||
}
|
||||
|
||||
// System property name that contains the patterns to filter object factory names
|
||||
private static final String FACTORIES_FILTER_PROPNAME = "jdk.jndi.object.factoriesFilter";
|
||||
|
||||
// Default system property value that allows the load of any object factory classes
|
||||
private static final String DEFAULT_SP_VALUE = "*";
|
||||
|
||||
// System wide object factories filter constructed from the system property
|
||||
private static final ObjectInputFilter GLOBAL =
|
||||
ObjectInputFilter.Config.createFilter(getFilterPropertyValue());
|
||||
|
||||
// Get security or system property value
|
||||
private static String getFilterPropertyValue() {
|
||||
String propVal = SecurityProperties.privilegedGetOverridable(FACTORIES_FILTER_PROPNAME);
|
||||
return propVal != null ? propVal : DEFAULT_SP_VALUE;
|
||||
}
|
||||
}
|
||||
648
jdkSrc/jdk8/com/sun/naming/internal/ResourceManager.java
Normal file
648
jdkSrc/jdk8/com/sun/naming/internal/ResourceManager.java
Normal file
@@ -0,0 +1,648 @@
|
||||
/*
|
||||
* Copyright (c) 1999, 2013, 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 com.sun.naming.internal;
|
||||
|
||||
import java.io.InputStream;
|
||||
import java.io.IOException;
|
||||
import java.lang.ref.WeakReference;
|
||||
import java.lang.reflect.Method;
|
||||
import java.lang.reflect.InvocationTargetException;
|
||||
import java.util.HashMap;
|
||||
import java.util.Hashtable;
|
||||
import java.util.Map;
|
||||
import java.util.Properties;
|
||||
import java.util.StringTokenizer;
|
||||
import java.util.List;
|
||||
import java.util.ArrayList;
|
||||
import java.util.WeakHashMap;
|
||||
|
||||
import javax.naming.*;
|
||||
|
||||
/**
|
||||
* The ResourceManager class facilitates the reading of JNDI resource files.
|
||||
*
|
||||
* @author Rosanna Lee
|
||||
* @author Scott Seligman
|
||||
*/
|
||||
|
||||
public final class ResourceManager {
|
||||
|
||||
/*
|
||||
* Name of provider resource files (without the package-name prefix.)
|
||||
*/
|
||||
private static final String PROVIDER_RESOURCE_FILE_NAME =
|
||||
"jndiprovider.properties";
|
||||
|
||||
/*
|
||||
* Name of application resource files.
|
||||
*/
|
||||
private static final String APP_RESOURCE_FILE_NAME = "jndi.properties";
|
||||
|
||||
/*
|
||||
* Name of properties file in <java.home>/lib.
|
||||
*/
|
||||
private static final String JRELIB_PROPERTY_FILE_NAME = "jndi.properties";
|
||||
|
||||
/*
|
||||
* Internal environment property, that when set to "true", disables
|
||||
* application resource files lookup to prevent recursion issues
|
||||
* when validating signed JARs.
|
||||
*/
|
||||
private static final String DISABLE_APP_RESOURCE_FILES =
|
||||
"com.sun.naming.disable.app.resource.files";
|
||||
|
||||
/*
|
||||
* The standard JNDI properties that specify colon-separated lists.
|
||||
*/
|
||||
private static final String[] listProperties = {
|
||||
Context.OBJECT_FACTORIES,
|
||||
Context.URL_PKG_PREFIXES,
|
||||
Context.STATE_FACTORIES,
|
||||
// The following shouldn't create a runtime dependence on ldap package.
|
||||
javax.naming.ldap.LdapContext.CONTROL_FACTORIES
|
||||
};
|
||||
|
||||
private static final VersionHelper helper =
|
||||
VersionHelper.getVersionHelper();
|
||||
|
||||
/*
|
||||
* A cache of the properties that have been constructed by
|
||||
* the ResourceManager. A Hashtable from a provider resource
|
||||
* file is keyed on a class in the resource file's package.
|
||||
* One from application resource files is keyed on the thread's
|
||||
* context class loader.
|
||||
*/
|
||||
// WeakHashMap<Class | ClassLoader, Hashtable>
|
||||
private static final WeakHashMap<Object, Hashtable<? super String, Object>>
|
||||
propertiesCache = new WeakHashMap<>(11);
|
||||
|
||||
/*
|
||||
* A cache of factory objects (ObjectFactory, StateFactory, ControlFactory).
|
||||
*
|
||||
* A two-level cache keyed first on context class loader and then
|
||||
* on propValue. Value is a list of class or factory objects,
|
||||
* weakly referenced so as not to prevent GC of the class loader.
|
||||
* Used in getFactories().
|
||||
*/
|
||||
private static final
|
||||
WeakHashMap<ClassLoader, Map<String, List<NamedWeakReference<Object>>>>
|
||||
factoryCache = new WeakHashMap<>(11);
|
||||
|
||||
/*
|
||||
* A cache of URL factory objects (ObjectFactory).
|
||||
*
|
||||
* A two-level cache keyed first on context class loader and then
|
||||
* on classSuffix+propValue. Value is the factory itself (weakly
|
||||
* referenced so as not to prevent GC of the class loader) or
|
||||
* NO_FACTORY if a previous search revealed no factory. Used in
|
||||
* getFactory().
|
||||
*/
|
||||
private static final
|
||||
WeakHashMap<ClassLoader, Map<String, WeakReference<Object>>>
|
||||
urlFactoryCache = new WeakHashMap<>(11);
|
||||
private static final WeakReference<Object> NO_FACTORY =
|
||||
new WeakReference<>(null);
|
||||
|
||||
/**
|
||||
* A class to allow JNDI properties be specified as applet parameters
|
||||
* without creating a static dependency on java.applet.
|
||||
*/
|
||||
private static class AppletParameter {
|
||||
private static final Class<?> clazz = getClass("java.applet.Applet");
|
||||
private static final Method getMethod =
|
||||
getMethod(clazz, "getParameter", String.class);
|
||||
private static Class<?> getClass(String name) {
|
||||
try {
|
||||
return Class.forName(name, true, null);
|
||||
} catch (ClassNotFoundException e) {
|
||||
return null;
|
||||
}
|
||||
}
|
||||
private static Method getMethod(Class<?> clazz,
|
||||
String name,
|
||||
Class<?>... paramTypes)
|
||||
{
|
||||
if (clazz != null) {
|
||||
try {
|
||||
return clazz.getMethod(name, paramTypes);
|
||||
} catch (NoSuchMethodException e) {
|
||||
throw new AssertionError(e);
|
||||
}
|
||||
} else {
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the value of the applet's named parameter.
|
||||
*/
|
||||
static Object get(Object applet, String name) {
|
||||
// if clazz is null then applet cannot be an Applet.
|
||||
if (clazz == null || !clazz.isInstance(applet))
|
||||
throw new ClassCastException(applet.getClass().getName());
|
||||
try {
|
||||
return getMethod.invoke(applet, name);
|
||||
} catch (InvocationTargetException |
|
||||
IllegalAccessException e) {
|
||||
throw new AssertionError(e);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// There should be no instances of this class.
|
||||
private ResourceManager() {
|
||||
}
|
||||
|
||||
|
||||
// ---------- Public methods ----------
|
||||
|
||||
/*
|
||||
* Given the environment parameter passed to the initial context
|
||||
* constructor, returns the full environment for that initial
|
||||
* context (never null). This is based on the environment
|
||||
* parameter, the applet parameters (where appropriate), the
|
||||
* system properties, and all application resource files.
|
||||
*
|
||||
* <p> This method will modify <tt>env</tt> and save
|
||||
* a reference to it. The caller may no longer modify it.
|
||||
*
|
||||
* @param env environment passed to initial context constructor.
|
||||
* Null indicates an empty environment.
|
||||
*
|
||||
* @throws NamingException if an error occurs while reading a
|
||||
* resource file
|
||||
*/
|
||||
@SuppressWarnings("unchecked")
|
||||
public static Hashtable<?, ?> getInitialEnvironment(
|
||||
Hashtable<?, ?> env)
|
||||
throws NamingException
|
||||
{
|
||||
String[] props = VersionHelper.PROPS; // system/applet properties
|
||||
if (env == null) {
|
||||
env = new Hashtable<>(11);
|
||||
}
|
||||
Object applet = env.get(Context.APPLET);
|
||||
|
||||
// Merge property values from env param, applet params, and system
|
||||
// properties. The first value wins: there's no concatenation of
|
||||
// colon-separated lists.
|
||||
// Read system properties by first trying System.getProperties(),
|
||||
// and then trying System.getProperty() if that fails. The former
|
||||
// is more efficient due to fewer permission checks.
|
||||
//
|
||||
String[] jndiSysProps = helper.getJndiProperties();
|
||||
for (int i = 0; i < props.length; i++) {
|
||||
Object val = env.get(props[i]);
|
||||
if (val == null) {
|
||||
if (applet != null) {
|
||||
val = AppletParameter.get(applet, props[i]);
|
||||
}
|
||||
if (val == null) {
|
||||
// Read system property.
|
||||
val = (jndiSysProps != null)
|
||||
? jndiSysProps[i]
|
||||
: helper.getJndiProperty(i);
|
||||
}
|
||||
if (val != null) {
|
||||
((Hashtable<String, Object>)env).put(props[i], val);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Return without merging if application resource files lookup
|
||||
// is disabled.
|
||||
String disableAppRes = (String)env.get(DISABLE_APP_RESOURCE_FILES);
|
||||
if (disableAppRes != null && disableAppRes.equalsIgnoreCase("true")) {
|
||||
return env;
|
||||
}
|
||||
|
||||
// Merge the above with the values read from all application
|
||||
// resource files. Colon-separated lists are concatenated.
|
||||
mergeTables((Hashtable<Object, Object>)env, getApplicationResources());
|
||||
return env;
|
||||
}
|
||||
|
||||
/**
|
||||
* Retrieves the property from the environment, or from the provider
|
||||
* resource file associated with the given context. The environment
|
||||
* may in turn contain values that come from applet parameters,
|
||||
* system properties, or application resource files.
|
||||
*
|
||||
* If <tt>concat</tt> is true and both the environment and the provider
|
||||
* resource file contain the property, the two values are concatenated
|
||||
* (with a ':' separator).
|
||||
*
|
||||
* Returns null if no value is found.
|
||||
*
|
||||
* @param propName The non-null property name
|
||||
* @param env The possibly null environment properties
|
||||
* @param ctx The possibly null context
|
||||
* @param concat True if multiple values should be concatenated
|
||||
* @return the property value, or null is there is none.
|
||||
* @throws NamingException if an error occurs while reading the provider
|
||||
* resource file.
|
||||
*/
|
||||
public static String getProperty(String propName, Hashtable<?,?> env,
|
||||
Context ctx, boolean concat)
|
||||
throws NamingException {
|
||||
|
||||
String val1 = (env != null) ? (String)env.get(propName) : null;
|
||||
if ((ctx == null) ||
|
||||
((val1 != null) && !concat)) {
|
||||
return val1;
|
||||
}
|
||||
String val2 = (String)getProviderResource(ctx).get(propName);
|
||||
if (val1 == null) {
|
||||
return val2;
|
||||
} else if ((val2 == null) || !concat) {
|
||||
return val1;
|
||||
} else {
|
||||
return (val1 + ":" + val2);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Retrieves an enumeration of factory classes/object specified by a
|
||||
* property.
|
||||
*
|
||||
* The property is gotten from the environment and the provider
|
||||
* resource file associated with the given context and concantenated.
|
||||
* See getProperty(). The resulting property value is a list of class names.
|
||||
*<p>
|
||||
* This method then loads each class using the current thread's context
|
||||
* class loader and keeps them in a list. Any class that cannot be loaded
|
||||
* is ignored. The resulting list is then cached in a two-level
|
||||
* hash table, keyed first by the context class loader and then by
|
||||
* the property's value.
|
||||
* The next time threads of the same context class loader call this
|
||||
* method, they can use the cached list.
|
||||
*<p>
|
||||
* After obtaining the list either from the cache or by creating one from
|
||||
* the property value, this method then creates and returns a
|
||||
* FactoryEnumeration using the list. As the FactoryEnumeration is
|
||||
* traversed, the cached Class object in the list is instantiated and
|
||||
* replaced by an instance of the factory object itself. Both class
|
||||
* objects and factories are wrapped in weak references so as not to
|
||||
* prevent GC of the class loader.
|
||||
*<p>
|
||||
* Note that multiple threads can be accessing the same cached list
|
||||
* via FactoryEnumeration, which locks the list during each next().
|
||||
* The size of the list will not change,
|
||||
* but a cached Class object might be replaced by an instantiated factory
|
||||
* object.
|
||||
*
|
||||
* @param propName The non-null property name
|
||||
* @param env The possibly null environment properties
|
||||
* @param ctx The possibly null context
|
||||
* @return An enumeration of factory classes/objects; null if none.
|
||||
* @exception NamingException If encounter problem while reading the provider
|
||||
* property file.
|
||||
* @see javax.naming.spi.NamingManager#getObjectInstance
|
||||
* @see javax.naming.spi.NamingManager#getStateToBind
|
||||
* @see javax.naming.spi.DirectoryManager#getObjectInstance
|
||||
* @see javax.naming.spi.DirectoryManager#getStateToBind
|
||||
* @see javax.naming.ldap.ControlFactory#getControlInstance
|
||||
*/
|
||||
public static FactoryEnumeration getFactories(String propName,
|
||||
Hashtable<?,?> env, Context ctx) throws NamingException {
|
||||
|
||||
String facProp = getProperty(propName, env, ctx, true);
|
||||
if (facProp == null)
|
||||
return null; // no classes specified; return null
|
||||
|
||||
// Cache is based on context class loader and property val
|
||||
ClassLoader loader = helper.getContextClassLoader();
|
||||
|
||||
Map<String, List<NamedWeakReference<Object>>> perLoaderCache = null;
|
||||
synchronized (factoryCache) {
|
||||
perLoaderCache = factoryCache.get(loader);
|
||||
if (perLoaderCache == null) {
|
||||
perLoaderCache = new HashMap<>(11);
|
||||
factoryCache.put(loader, perLoaderCache);
|
||||
}
|
||||
}
|
||||
|
||||
synchronized (perLoaderCache) {
|
||||
List<NamedWeakReference<Object>> factories =
|
||||
perLoaderCache.get(facProp);
|
||||
if (factories != null) {
|
||||
// Cached list
|
||||
return factories.size() == 0 ? null
|
||||
: new FactoryEnumeration(factories, loader);
|
||||
} else {
|
||||
// Populate list with classes named in facProp; skipping
|
||||
// those that we cannot load
|
||||
StringTokenizer parser = new StringTokenizer(facProp, ":");
|
||||
factories = new ArrayList<>(5);
|
||||
while (parser.hasMoreTokens()) {
|
||||
try {
|
||||
// System.out.println("loading");
|
||||
String className = parser.nextToken();
|
||||
Class<?> c = helper.loadClass(className, loader);
|
||||
factories.add(new NamedWeakReference<Object>(c, className));
|
||||
} catch (Exception e) {
|
||||
// ignore ClassNotFoundException, IllegalArgumentException
|
||||
}
|
||||
}
|
||||
// System.out.println("adding to cache: " + factories);
|
||||
perLoaderCache.put(facProp, factories);
|
||||
return new FactoryEnumeration(factories, loader);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Retrieves a factory from a list of packages specified in a
|
||||
* property.
|
||||
*
|
||||
* The property is gotten from the environment and the provider
|
||||
* resource file associated with the given context and concatenated.
|
||||
* classSuffix is added to the end of this list.
|
||||
* See getProperty(). The resulting property value is a list of package
|
||||
* prefixes.
|
||||
*<p>
|
||||
* This method then constructs a list of class names by concatenating
|
||||
* each package prefix with classSuffix and attempts to load and
|
||||
* instantiate the class until one succeeds.
|
||||
* Any class that cannot be loaded is ignored.
|
||||
* The resulting object is then cached in a two-level hash table,
|
||||
* keyed first by the context class loader and then by the property's
|
||||
* value and classSuffix.
|
||||
* The next time threads of the same context class loader call this
|
||||
* method, they use the cached factory.
|
||||
* If no factory can be loaded, NO_FACTORY is recorded in the table
|
||||
* so that next time it'll return quickly.
|
||||
*
|
||||
* @param propName The non-null property name
|
||||
* @param env The possibly null environment properties
|
||||
* @param ctx The possibly null context
|
||||
* @param classSuffix The non-null class name
|
||||
* (e.g. ".ldap.ldapURLContextFactory).
|
||||
* @param defaultPkgPrefix The non-null default package prefix.
|
||||
* (e.g., "com.sun.jndi.url").
|
||||
* @return An factory object; null if none.
|
||||
* @exception NamingException If encounter problem while reading the provider
|
||||
* property file, or problem instantiating the factory.
|
||||
*
|
||||
* @see javax.naming.spi.NamingManager#getURLContext
|
||||
* @see javax.naming.spi.NamingManager#getURLObject
|
||||
*/
|
||||
public static Object getFactory(String propName, Hashtable<?,?> env,
|
||||
Context ctx, String classSuffix, String defaultPkgPrefix)
|
||||
throws NamingException {
|
||||
|
||||
// Merge property with provider property and supplied default
|
||||
String facProp = getProperty(propName, env, ctx, true);
|
||||
if (facProp != null)
|
||||
facProp += (":" + defaultPkgPrefix);
|
||||
else
|
||||
facProp = defaultPkgPrefix;
|
||||
|
||||
// Cache factory based on context class loader, class name, and
|
||||
// property val
|
||||
ClassLoader loader = helper.getContextClassLoader();
|
||||
String key = classSuffix + " " + facProp;
|
||||
|
||||
Map<String, WeakReference<Object>> perLoaderCache = null;
|
||||
synchronized (urlFactoryCache) {
|
||||
perLoaderCache = urlFactoryCache.get(loader);
|
||||
if (perLoaderCache == null) {
|
||||
perLoaderCache = new HashMap<>(11);
|
||||
urlFactoryCache.put(loader, perLoaderCache);
|
||||
}
|
||||
}
|
||||
|
||||
synchronized (perLoaderCache) {
|
||||
Object factory = null;
|
||||
|
||||
WeakReference<Object> factoryRef = perLoaderCache.get(key);
|
||||
if (factoryRef == NO_FACTORY) {
|
||||
return null;
|
||||
} else if (factoryRef != null) {
|
||||
factory = factoryRef.get();
|
||||
if (factory != null) { // check if weak ref has been cleared
|
||||
return factory;
|
||||
}
|
||||
}
|
||||
|
||||
// Not cached; find first factory and cache
|
||||
StringTokenizer parser = new StringTokenizer(facProp, ":");
|
||||
String className;
|
||||
while (factory == null && parser.hasMoreTokens()) {
|
||||
className = parser.nextToken() + classSuffix;
|
||||
try {
|
||||
// System.out.println("loading " + className);
|
||||
factory = helper.loadClass(className, loader).newInstance();
|
||||
} catch (InstantiationException e) {
|
||||
NamingException ne =
|
||||
new NamingException("Cannot instantiate " + className);
|
||||
ne.setRootCause(e);
|
||||
throw ne;
|
||||
} catch (IllegalAccessException e) {
|
||||
NamingException ne =
|
||||
new NamingException("Cannot access " + className);
|
||||
ne.setRootCause(e);
|
||||
throw ne;
|
||||
} catch (Exception e) {
|
||||
// ignore ClassNotFoundException, IllegalArgumentException,
|
||||
// etc.
|
||||
}
|
||||
}
|
||||
|
||||
// Cache it.
|
||||
perLoaderCache.put(key, (factory != null)
|
||||
? new WeakReference<>(factory)
|
||||
: NO_FACTORY);
|
||||
return factory;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// ---------- Private methods ----------
|
||||
|
||||
/*
|
||||
* Returns the properties contained in the provider resource file
|
||||
* of an object's package. Returns an empty hash table if the
|
||||
* object is null or the resource file cannot be found. The
|
||||
* results are cached.
|
||||
*
|
||||
* @throws NamingException if an error occurs while reading the file.
|
||||
*/
|
||||
private static Hashtable<? super String, Object>
|
||||
getProviderResource(Object obj)
|
||||
throws NamingException
|
||||
{
|
||||
if (obj == null) {
|
||||
return (new Hashtable<>(1));
|
||||
}
|
||||
synchronized (propertiesCache) {
|
||||
Class<?> c = obj.getClass();
|
||||
|
||||
Hashtable<? super String, Object> props =
|
||||
propertiesCache.get(c);
|
||||
if (props != null) {
|
||||
return props;
|
||||
}
|
||||
props = new Properties();
|
||||
|
||||
InputStream istream =
|
||||
helper.getResourceAsStream(c, PROVIDER_RESOURCE_FILE_NAME);
|
||||
|
||||
if (istream != null) {
|
||||
try {
|
||||
((Properties)props).load(istream);
|
||||
} catch (IOException e) {
|
||||
NamingException ne = new ConfigurationException(
|
||||
"Error reading provider resource file for " + c);
|
||||
ne.setRootCause(e);
|
||||
throw ne;
|
||||
}
|
||||
}
|
||||
propertiesCache.put(c, props);
|
||||
return props;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Returns the Hashtable (never null) that results from merging
|
||||
* all application resource files available to this thread's
|
||||
* context class loader. The properties file in <java.home>/lib
|
||||
* is also merged in. The results are cached.
|
||||
*
|
||||
* SECURITY NOTES:
|
||||
* 1. JNDI needs permission to read the application resource files.
|
||||
* 2. Any class will be able to use JNDI to view the contents of
|
||||
* the application resource files in its own classpath. Give
|
||||
* careful consideration to this before storing sensitive
|
||||
* information there.
|
||||
*
|
||||
* @throws NamingException if an error occurs while reading a resource
|
||||
* file.
|
||||
*/
|
||||
private static Hashtable<? super String, Object> getApplicationResources()
|
||||
throws NamingException {
|
||||
|
||||
ClassLoader cl = helper.getContextClassLoader();
|
||||
|
||||
synchronized (propertiesCache) {
|
||||
Hashtable<? super String, Object> result = propertiesCache.get(cl);
|
||||
if (result != null) {
|
||||
return result;
|
||||
}
|
||||
|
||||
try {
|
||||
NamingEnumeration<InputStream> resources =
|
||||
helper.getResources(cl, APP_RESOURCE_FILE_NAME);
|
||||
try {
|
||||
while (resources.hasMore()) {
|
||||
Properties props = new Properties();
|
||||
InputStream istream = resources.next();
|
||||
try {
|
||||
props.load(istream);
|
||||
} finally {
|
||||
istream.close();
|
||||
}
|
||||
|
||||
if (result == null) {
|
||||
result = props;
|
||||
} else {
|
||||
mergeTables(result, props);
|
||||
}
|
||||
}
|
||||
} finally {
|
||||
while (resources.hasMore()) {
|
||||
resources.next().close();
|
||||
}
|
||||
}
|
||||
|
||||
// Merge in properties from file in <java.home>/lib.
|
||||
InputStream istream =
|
||||
helper.getJavaHomeLibStream(JRELIB_PROPERTY_FILE_NAME);
|
||||
if (istream != null) {
|
||||
try {
|
||||
Properties props = new Properties();
|
||||
props.load(istream);
|
||||
|
||||
if (result == null) {
|
||||
result = props;
|
||||
} else {
|
||||
mergeTables(result, props);
|
||||
}
|
||||
} finally {
|
||||
istream.close();
|
||||
}
|
||||
}
|
||||
|
||||
} catch (IOException e) {
|
||||
NamingException ne = new ConfigurationException(
|
||||
"Error reading application resource file");
|
||||
ne.setRootCause(e);
|
||||
throw ne;
|
||||
}
|
||||
if (result == null) {
|
||||
result = new Hashtable<>(11);
|
||||
}
|
||||
propertiesCache.put(cl, result);
|
||||
return result;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Merge the properties from one hash table into another. Each
|
||||
* property in props2 that is not in props1 is added to props1.
|
||||
* For each property in both hash tables that is one of the
|
||||
* standard JNDI properties that specify colon-separated lists,
|
||||
* the values are concatenated and stored in props1.
|
||||
*/
|
||||
private static void mergeTables(Hashtable<? super String, Object> props1,
|
||||
Hashtable<? super String, Object> props2) {
|
||||
for (Object key : props2.keySet()) {
|
||||
String prop = (String)key;
|
||||
Object val1 = props1.get(prop);
|
||||
if (val1 == null) {
|
||||
props1.put(prop, props2.get(prop));
|
||||
} else if (isListProperty(prop)) {
|
||||
String val2 = (String)props2.get(prop);
|
||||
props1.put(prop, ((String)val1) + ":" + val2);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Is a property one of the standard JNDI properties that specify
|
||||
* colon-separated lists?
|
||||
*/
|
||||
private static boolean isListProperty(String prop) {
|
||||
prop = prop.intern();
|
||||
for (int i = 0; i < listProperties.length; i++) {
|
||||
if (prop == listProperties[i]) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
}
|
||||
158
jdkSrc/jdk8/com/sun/naming/internal/VersionHelper.java
Normal file
158
jdkSrc/jdk8/com/sun/naming/internal/VersionHelper.java
Normal file
@@ -0,0 +1,158 @@
|
||||
/*
|
||||
* Copyright (c) 1999, 2011, 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 com.sun.naming.internal;
|
||||
|
||||
import java.io.InputStream;
|
||||
import java.io.IOException;
|
||||
import java.net.MalformedURLException;
|
||||
import java.net.URL;
|
||||
import java.util.StringTokenizer;
|
||||
import java.util.Vector;
|
||||
|
||||
import javax.naming.NamingEnumeration;
|
||||
|
||||
/**
|
||||
* VersionHelper was used by JNDI to accommodate differences between
|
||||
* JDK 1.1.x and the Java 2 platform. As this is no longer necessary
|
||||
* since JNDI's inclusion in the platform, this class currently
|
||||
* serves as a set of utilities for performing system-level things,
|
||||
* such as class-loading and reading system properties.
|
||||
*
|
||||
* @author Rosanna Lee
|
||||
* @author Scott Seligman
|
||||
*/
|
||||
|
||||
public abstract class VersionHelper {
|
||||
private static VersionHelper helper = null;
|
||||
|
||||
final static String[] PROPS = new String[] {
|
||||
javax.naming.Context.INITIAL_CONTEXT_FACTORY,
|
||||
javax.naming.Context.OBJECT_FACTORIES,
|
||||
javax.naming.Context.URL_PKG_PREFIXES,
|
||||
javax.naming.Context.STATE_FACTORIES,
|
||||
javax.naming.Context.PROVIDER_URL,
|
||||
javax.naming.Context.DNS_URL,
|
||||
// The following shouldn't create a runtime dependence on ldap package.
|
||||
javax.naming.ldap.LdapContext.CONTROL_FACTORIES
|
||||
};
|
||||
|
||||
public final static int INITIAL_CONTEXT_FACTORY = 0;
|
||||
public final static int OBJECT_FACTORIES = 1;
|
||||
public final static int URL_PKG_PREFIXES = 2;
|
||||
public final static int STATE_FACTORIES = 3;
|
||||
public final static int PROVIDER_URL = 4;
|
||||
public final static int DNS_URL = 5;
|
||||
public final static int CONTROL_FACTORIES = 6;
|
||||
|
||||
VersionHelper() {} // Disallow anyone from creating one of these.
|
||||
|
||||
static {
|
||||
helper = new VersionHelper12();
|
||||
}
|
||||
|
||||
public static VersionHelper getVersionHelper() {
|
||||
return helper;
|
||||
}
|
||||
|
||||
public abstract Class<?> loadClassWithoutInit(String className)
|
||||
throws ClassNotFoundException;
|
||||
|
||||
public abstract Class<?> loadClass(String className)
|
||||
throws ClassNotFoundException;
|
||||
|
||||
abstract Class<?> loadClass(String className, ClassLoader cl)
|
||||
throws ClassNotFoundException;
|
||||
|
||||
public abstract Class<?> loadClass(String className, String codebase)
|
||||
throws ClassNotFoundException, MalformedURLException;
|
||||
|
||||
/*
|
||||
* Returns a JNDI property from the system properties. Returns
|
||||
* null if the property is not set, or if there is no permission
|
||||
* to read it.
|
||||
*/
|
||||
abstract String getJndiProperty(int i);
|
||||
|
||||
/*
|
||||
* Reads each property in PROPS from the system properties, and
|
||||
* returns their values -- in order -- in an array. For each
|
||||
* unset property, the corresponding array element is set to null.
|
||||
* Returns null if there is no permission to call System.getProperties().
|
||||
*/
|
||||
abstract String[] getJndiProperties();
|
||||
|
||||
/*
|
||||
* Returns the resource of a given name associated with a particular
|
||||
* class (never null), or null if none can be found.
|
||||
*/
|
||||
abstract InputStream getResourceAsStream(Class<?> c, String name);
|
||||
|
||||
/*
|
||||
* Returns an input stream for a file in <java.home>/lib,
|
||||
* or null if it cannot be located or opened.
|
||||
*
|
||||
* @param filename The file name, sans directory.
|
||||
*/
|
||||
abstract InputStream getJavaHomeLibStream(String filename);
|
||||
|
||||
/*
|
||||
* Returns an enumeration (never null) of InputStreams of the
|
||||
* resources of a given name associated with a particular class
|
||||
* loader. Null represents the bootstrap class loader in some
|
||||
* Java implementations.
|
||||
*/
|
||||
abstract NamingEnumeration<InputStream> getResources(
|
||||
ClassLoader cl, String name)
|
||||
throws IOException;
|
||||
|
||||
/*
|
||||
* Returns the context class loader associated with the current thread.
|
||||
* Null indicates the bootstrap class loader in some Java implementations.
|
||||
*
|
||||
* @throws SecurityException if the class loader is not accessible.
|
||||
*/
|
||||
abstract ClassLoader getContextClassLoader();
|
||||
|
||||
static protected URL[] getUrlArray(String codebase)
|
||||
throws MalformedURLException {
|
||||
// Parse codebase into separate URLs
|
||||
StringTokenizer parser = new StringTokenizer(codebase);
|
||||
Vector<String> vec = new Vector<>(10);
|
||||
while (parser.hasMoreTokens()) {
|
||||
vec.addElement(parser.nextToken());
|
||||
}
|
||||
String[] url = new String[vec.size()];
|
||||
for (int i = 0; i < url.length; i++) {
|
||||
url[i] = vec.elementAt(i);
|
||||
}
|
||||
|
||||
URL[] urlArray = new URL[url.length];
|
||||
for (int i = 0; i < urlArray.length; i++) {
|
||||
urlArray[i] = new URL(url[i]);
|
||||
}
|
||||
return urlArray;
|
||||
}
|
||||
}
|
||||
299
jdkSrc/jdk8/com/sun/naming/internal/VersionHelper12.java
Normal file
299
jdkSrc/jdk8/com/sun/naming/internal/VersionHelper12.java
Normal file
@@ -0,0 +1,299 @@
|
||||
/*
|
||||
* Copyright (c) 1999, 2011, 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 com.sun.naming.internal;
|
||||
|
||||
import java.io.InputStream;
|
||||
import java.io.IOException;
|
||||
import java.net.MalformedURLException;
|
||||
import java.net.URLClassLoader;
|
||||
import java.net.URL;
|
||||
import java.security.AccessController;
|
||||
import java.security.PrivilegedAction;
|
||||
import java.security.PrivilegedActionException;
|
||||
import java.security.PrivilegedExceptionAction;
|
||||
import java.util.Enumeration;
|
||||
import java.util.NoSuchElementException;
|
||||
import java.util.Properties;
|
||||
|
||||
import javax.naming.*;
|
||||
|
||||
/**
|
||||
* VersionHelper was used by JNDI to accommodate differences between
|
||||
* JDK 1.1.x and the Java 2 platform. As this is no longer necessary
|
||||
* since JNDI's inclusion in the platform, this class currently
|
||||
* serves as a set of utilities for performing system-level things,
|
||||
* such as class-loading and reading system properties.
|
||||
*
|
||||
* @author Rosanna Lee
|
||||
* @author Scott Seligman
|
||||
*/
|
||||
|
||||
final class VersionHelper12 extends VersionHelper {
|
||||
|
||||
// Disallow external from creating one of these.
|
||||
VersionHelper12() {
|
||||
}
|
||||
|
||||
public Class<?> loadClass(String className) throws ClassNotFoundException {
|
||||
return loadClass(className, getContextClassLoader());
|
||||
}
|
||||
|
||||
public Class<?> loadClassWithoutInit(String className) throws ClassNotFoundException {
|
||||
return loadClass(className, false, getContextClassLoader());
|
||||
}
|
||||
|
||||
/**
|
||||
* Determines whether classes may be loaded from an arbitrary URL code base.
|
||||
*/
|
||||
private static final String TRUST_URL_CODEBASE_PROPERTY =
|
||||
"com.sun.jndi.ldap.object.trustURLCodebase";
|
||||
private static final String trustURLCodebase =
|
||||
AccessController.doPrivileged(
|
||||
new PrivilegedAction<String>() {
|
||||
public String run() {
|
||||
try {
|
||||
return System.getProperty(TRUST_URL_CODEBASE_PROPERTY,
|
||||
"false");
|
||||
} catch (SecurityException e) {
|
||||
return "false";
|
||||
}
|
||||
}
|
||||
}
|
||||
);
|
||||
|
||||
/**
|
||||
* Package private.
|
||||
*
|
||||
* This internal method is used with Thread Context Class Loader (TCCL),
|
||||
* please don't expose this method as public.
|
||||
*/
|
||||
Class<?> loadClass(String className, boolean initialize, ClassLoader cl)
|
||||
throws ClassNotFoundException {
|
||||
Class<?> cls = Class.forName(className, initialize, cl);
|
||||
return cls;
|
||||
}
|
||||
|
||||
Class<?> loadClass(String className, ClassLoader cl)
|
||||
throws ClassNotFoundException {
|
||||
return loadClass(className, true, cl);
|
||||
}
|
||||
|
||||
/**
|
||||
* @param className A non-null fully qualified class name.
|
||||
* @param codebase A non-null, space-separated list of URL strings.
|
||||
*/
|
||||
public Class<?> loadClass(String className, String codebase)
|
||||
throws ClassNotFoundException, MalformedURLException {
|
||||
if ("true".equalsIgnoreCase(trustURLCodebase)) {
|
||||
ClassLoader parent = getContextClassLoader();
|
||||
ClassLoader cl =
|
||||
URLClassLoader.newInstance(getUrlArray(codebase), parent);
|
||||
|
||||
return loadClass(className, cl);
|
||||
} else {
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
String getJndiProperty(final int i) {
|
||||
return AccessController.doPrivileged(
|
||||
new PrivilegedAction<String>() {
|
||||
public String run() {
|
||||
try {
|
||||
return System.getProperty(PROPS[i]);
|
||||
} catch (SecurityException e) {
|
||||
return null;
|
||||
}
|
||||
}
|
||||
}
|
||||
);
|
||||
}
|
||||
|
||||
String[] getJndiProperties() {
|
||||
Properties sysProps = AccessController.doPrivileged(
|
||||
new PrivilegedAction<Properties>() {
|
||||
public Properties run() {
|
||||
try {
|
||||
return System.getProperties();
|
||||
} catch (SecurityException e) {
|
||||
return null;
|
||||
}
|
||||
}
|
||||
}
|
||||
);
|
||||
if (sysProps == null) {
|
||||
return null;
|
||||
}
|
||||
String[] jProps = new String[PROPS.length];
|
||||
for (int i = 0; i < PROPS.length; i++) {
|
||||
jProps[i] = sysProps.getProperty(PROPS[i]);
|
||||
}
|
||||
return jProps;
|
||||
}
|
||||
|
||||
InputStream getResourceAsStream(final Class<?> c, final String name) {
|
||||
return AccessController.doPrivileged(
|
||||
new PrivilegedAction<InputStream>() {
|
||||
public InputStream run() {
|
||||
return c.getResourceAsStream(name);
|
||||
}
|
||||
}
|
||||
);
|
||||
}
|
||||
|
||||
InputStream getJavaHomeLibStream(final String filename) {
|
||||
return AccessController.doPrivileged(
|
||||
new PrivilegedAction<InputStream>() {
|
||||
public InputStream run() {
|
||||
try {
|
||||
String javahome = System.getProperty("java.home");
|
||||
if (javahome == null) {
|
||||
return null;
|
||||
}
|
||||
String pathname = javahome + java.io.File.separator +
|
||||
"lib" + java.io.File.separator + filename;
|
||||
return new java.io.FileInputStream(pathname);
|
||||
} catch (Exception e) {
|
||||
return null;
|
||||
}
|
||||
}
|
||||
}
|
||||
);
|
||||
}
|
||||
|
||||
NamingEnumeration<InputStream> getResources(final ClassLoader cl,
|
||||
final String name) throws IOException {
|
||||
Enumeration<URL> urls;
|
||||
try {
|
||||
urls = AccessController.doPrivileged(
|
||||
new PrivilegedExceptionAction<Enumeration<URL>>() {
|
||||
public Enumeration<URL> run() throws IOException {
|
||||
return (cl == null)
|
||||
? ClassLoader.getSystemResources(name)
|
||||
: cl.getResources(name);
|
||||
}
|
||||
}
|
||||
);
|
||||
} catch (PrivilegedActionException e) {
|
||||
throw (IOException)e.getException();
|
||||
}
|
||||
return new InputStreamEnumeration(urls);
|
||||
}
|
||||
|
||||
/**
|
||||
* Package private.
|
||||
*
|
||||
* This internal method returns Thread Context Class Loader (TCCL),
|
||||
* if null, returns the system Class Loader.
|
||||
*
|
||||
* Please don't expose this method as public.
|
||||
*/
|
||||
ClassLoader getContextClassLoader() {
|
||||
|
||||
return AccessController.doPrivileged(
|
||||
new PrivilegedAction<ClassLoader>() {
|
||||
public ClassLoader run() {
|
||||
ClassLoader loader =
|
||||
Thread.currentThread().getContextClassLoader();
|
||||
if (loader == null) {
|
||||
// Don't use bootstrap class loader directly!
|
||||
loader = ClassLoader.getSystemClassLoader();
|
||||
}
|
||||
|
||||
return loader;
|
||||
}
|
||||
}
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Given an enumeration of URLs, an instance of this class represents
|
||||
* an enumeration of their InputStreams. Each operation on the URL
|
||||
* enumeration is performed within a doPrivileged block.
|
||||
* This is used to enumerate the resources under a foreign codebase.
|
||||
* This class is not MT-safe.
|
||||
*/
|
||||
class InputStreamEnumeration implements NamingEnumeration<InputStream> {
|
||||
|
||||
private final Enumeration<URL> urls;
|
||||
|
||||
private InputStream nextElement = null;
|
||||
|
||||
InputStreamEnumeration(Enumeration<URL> urls) {
|
||||
this.urls = urls;
|
||||
}
|
||||
|
||||
/*
|
||||
* Returns the next InputStream, or null if there are no more.
|
||||
* An InputStream that cannot be opened is skipped.
|
||||
*/
|
||||
private InputStream getNextElement() {
|
||||
return AccessController.doPrivileged(
|
||||
new PrivilegedAction<InputStream>() {
|
||||
public InputStream run() {
|
||||
while (urls.hasMoreElements()) {
|
||||
try {
|
||||
return urls.nextElement().openStream();
|
||||
} catch (IOException e) {
|
||||
// skip this URL
|
||||
}
|
||||
}
|
||||
return null;
|
||||
}
|
||||
}
|
||||
);
|
||||
}
|
||||
|
||||
public boolean hasMore() {
|
||||
if (nextElement != null) {
|
||||
return true;
|
||||
}
|
||||
nextElement = getNextElement();
|
||||
return (nextElement != null);
|
||||
}
|
||||
|
||||
public boolean hasMoreElements() {
|
||||
return hasMore();
|
||||
}
|
||||
|
||||
public InputStream next() {
|
||||
if (hasMore()) {
|
||||
InputStream res = nextElement;
|
||||
nextElement = null;
|
||||
return res;
|
||||
} else {
|
||||
throw new NoSuchElementException();
|
||||
}
|
||||
}
|
||||
|
||||
public InputStream nextElement() {
|
||||
return next();
|
||||
}
|
||||
|
||||
public void close() {
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user