jakarta.mail.Provider Maven / Gradle / Ivy
/*
* Copyright (c) 1997, 2021 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package jakarta.mail;
/**
* The Provider is a class that describes a protocol
* implementation. The values typically come from the
* javamail.providers and javamail.default.providers
* resource files. An application may also create and
* register a Provider object to dynamically add support
* for a new provider.
*
* @author Max Spivak
* @author Bill Shannon
*/
public class Provider {
/**
* This inner class defines the Provider type.
* Currently, STORE and TRANSPORT are the only two provider types
* supported.
*/
public static class Type {
public static final Type STORE = new Type("STORE");
public static final Type TRANSPORT = new Type("TRANSPORT");
private String type;
private Type(String type) {
this.type = type;
}
@Override
public String toString() {
return type;
}
}
private Type type;
private String protocol, className, vendor, version;
/**
* Create a new provider of the specified type for the specified
* protocol. The specified class implements the provider.
*
* @param type Type.STORE or Type.TRANSPORT
* @param protocol valid protocol for the type
* @param classname class name that implements this protocol
* @param vendor optional string identifying the vendor (may be null)
* @param version optional implementation version string (may be null)
* @since JavaMail 1.4
*/
public Provider(Type type, String protocol, String classname,
String vendor, String version) {
this.type = type;
this.protocol = protocol;
this.className = classname;
this.vendor = vendor;
this.version = version;
}
/**
* Returns the type of this Provider.
*
* @return the provider type
*/
public Type getType() {
return type;
}
/**
* Returns the protocol supported by this Provider.
*
* @return the protocol
*/
public String getProtocol() {
return protocol;
}
/**
* Returns the name of the class that implements the protocol.
*
* @return the class name
*/
public String getClassName() {
return className;
}
/**
* Returns the name of the vendor associated with this implementation
* or null.
*
* @return the vendor
*/
public String getVendor() {
return vendor;
}
/**
* Returns the version of this implementation or null if no version.
*
* @return the version
*/
public String getVersion() {
return version;
}
/** Overrides Object.toString() */
@Override
public String toString() {
String s = "jakarta.mail.Provider[" + type + "," +
protocol + "," + className;
if (vendor != null)
s += "," + vendor;
if (version != null)
s += "," + version;
s += "]";
return s;
}
}