feat(jdk8): move files to new folder to avoid resources compiled.
This commit is contained in:
138
jdkSrc/jdk8/javax/activation/CommandInfo.java
Normal file
138
jdkSrc/jdk8/javax/activation/CommandInfo.java
Normal file
@@ -0,0 +1,138 @@
|
||||
/*
|
||||
* Copyright (c) 1997, 1999, 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.activation;
|
||||
|
||||
import java.io.*;
|
||||
import java.beans.Beans;
|
||||
|
||||
/**
|
||||
* The CommandInfo class is used by CommandMap implementations to
|
||||
* describe the results of command requests. It provides the requestor
|
||||
* with both the verb requested, as well as an instance of the
|
||||
* bean. There is also a method that will return the name of the
|
||||
* class that implements the command but <i>it is not guaranteed to
|
||||
* return a valid value</i>. The reason for this is to allow CommandMap
|
||||
* implmentations that subclass CommandInfo to provide special
|
||||
* behavior. For example a CommandMap could dynamically generate
|
||||
* JavaBeans. In this case, it might not be possible to create an
|
||||
* object with all the correct state information solely from the class
|
||||
* name.
|
||||
*
|
||||
* @since 1.6
|
||||
*/
|
||||
|
||||
public class CommandInfo {
|
||||
private String verb;
|
||||
private String className;
|
||||
|
||||
/**
|
||||
* The Constructor for CommandInfo.
|
||||
* @param verb The command verb this CommandInfo decribes.
|
||||
* @param className The command's fully qualified class name.
|
||||
*/
|
||||
public CommandInfo(String verb, String className) {
|
||||
this.verb = verb;
|
||||
this.className = className;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return the command verb.
|
||||
*
|
||||
* @return the command verb.
|
||||
*/
|
||||
public String getCommandName() {
|
||||
return verb;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return the command's class name. <i>This method MAY return null in
|
||||
* cases where a CommandMap subclassed CommandInfo for its
|
||||
* own purposes.</i> In other words, it might not be possible to
|
||||
* create the correct state in the command by merely knowing
|
||||
* its class name. <b>DO NOT DEPEND ON THIS METHOD RETURNING
|
||||
* A VALID VALUE!</b>
|
||||
*
|
||||
* @return The class name of the command, or <i>null</i>
|
||||
*/
|
||||
public String getCommandClass() {
|
||||
return className;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return the instantiated JavaBean component.
|
||||
* <p>
|
||||
* Begin by instantiating the component with
|
||||
* <code>Beans.instantiate()</code>.
|
||||
* <p>
|
||||
* If the bean implements the <code>javax.activation.CommandObject</code>
|
||||
* interface, call its <code>setCommandContext</code> method.
|
||||
* <p>
|
||||
* If the DataHandler parameter is null, then the bean is
|
||||
* instantiated with no data. NOTE: this may be useful
|
||||
* if for some reason the DataHandler that is passed in
|
||||
* throws IOExceptions when this method attempts to
|
||||
* access its InputStream. It will allow the caller to
|
||||
* retrieve a reference to the bean if it can be
|
||||
* instantiated.
|
||||
* <p>
|
||||
* If the bean does NOT implement the CommandObject interface,
|
||||
* this method will check if it implements the
|
||||
* java.io.Externalizable interface. If it does, the bean's
|
||||
* readExternal method will be called if an InputStream
|
||||
* can be acquired from the DataHandler.<p>
|
||||
*
|
||||
* @param dh The DataHandler that describes the data to be
|
||||
* passed to the command.
|
||||
* @param loader The ClassLoader to be used to instantiate the bean.
|
||||
* @return The bean
|
||||
* @see java.beans.Beans#instantiate
|
||||
* @see javax.activation.CommandObject
|
||||
*/
|
||||
public Object getCommandObject(DataHandler dh, ClassLoader loader)
|
||||
throws IOException, ClassNotFoundException {
|
||||
Object new_bean = null;
|
||||
|
||||
// try to instantiate the bean
|
||||
new_bean = java.beans.Beans.instantiate(loader, className);
|
||||
|
||||
// if we got one and it is a CommandObject
|
||||
if (new_bean != null) {
|
||||
if (new_bean instanceof CommandObject) {
|
||||
((CommandObject)new_bean).setCommandContext(verb, dh);
|
||||
} else if (new_bean instanceof Externalizable) {
|
||||
if (dh != null) {
|
||||
InputStream is = dh.getInputStream();
|
||||
if (is != null) {
|
||||
((Externalizable)new_bean).readExternal(
|
||||
new ObjectInputStream(is));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return new_bean;
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user