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/*
* The MIT License (MIT)
*
* Copyright (c) 2014-2016 Christian Schudt
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package rocks.xmpp.extensions.compress.model;
import rocks.xmpp.core.stream.model.StreamElement;
import rocks.xmpp.extensions.compress.model.feature.CompressionFeature;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlElements;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlSeeAlso;
import javax.xml.bind.annotation.XmlTransient;
import javax.xml.bind.annotation.XmlType;
import java.util.Objects;
/**
* An abstract base class for all stream compression classes in the {@code http://jabber.org/protocol/compress} namespace.
*
* @author Christian Schudt
*/
@XmlTransient
@XmlSeeAlso({CompressionFeature.class, StreamCompression.Compress.class, StreamCompression.Compressed.class, StreamCompression.Failure.class})
public abstract class StreamCompression implements StreamElement {
/**
* http://jabber.org/protocol/compress
*/
public static final String NAMESPACE = "http://jabber.org/protocol/compress";
/**
* The implementation of the {@code
* This class is immutable.
*
* @author Christian Schudt
* @see XEP-0138: Stream Compression
* @see XML Schema
*/
@XmlRootElement
public static final class Failure extends StreamCompression {
@XmlElements({@XmlElement(name = "setup-failed", type = SetupFailed.class),
@XmlElement(name = "processing-failed", type = ProcessingFailed.class),
@XmlElement(name = "unsupported-method", type = UnsupportedMethod.class)})
private final Condition condition;
private Failure() {
this.condition = null;
}
public Failure(Condition condition) {
this.condition = Objects.requireNonNull(condition);
}
/**
* Gets the failure condition.
*
* @return The condition.
* @see rocks.xmpp.extensions.compress.model.StreamCompression.Failure.UnsupportedMethod
* @see rocks.xmpp.extensions.compress.model.StreamCompression.Failure.SetupFailed
* @see rocks.xmpp.extensions.compress.model.StreamCompression.Failure.ProcessingFailed
*/
public final Condition getCondition() {
return condition;
}
/**
* An abstract base class for a compression failure condition.
*/
@XmlTransient
public abstract static class Condition {
/**
* If the receiving entity finds the requested method unacceptable or unworkable for any other reason.
*/
public static final Condition SETUP_FAILED = new SetupFailed();
/**
* If compression processing fails after the new (compressed) stream has been established.
*/
public static final Condition PROCESSING_FAILED = new ProcessingFailed();
/**
* If the initiating entity requests a stream compression method that is not supported by the receiving entity.
*/
public static final Condition UNSUPPORTED_METHOD = new UnsupportedMethod();
private Condition() {
}
@Override
public final String toString() {
return getClass().getName();
}
}
/**
* If the receiving entity finds the requested method unacceptable or unworkable for any other reason.
*/
@XmlType(factoryMethod = "create")
private static final class SetupFailed extends Condition {
private SetupFailed() {
}
private static SetupFailed create() {
return (SetupFailed) SETUP_FAILED;
}
}
/**
* If compression processing fails after the new (compressed) stream has been established.
*/
@XmlType(factoryMethod = "create")
private static final class ProcessingFailed extends Condition {
private ProcessingFailed() {
}
private static ProcessingFailed create() {
return (ProcessingFailed) PROCESSING_FAILED;
}
}
/**
* If the initiating entity requests a stream compression method that is not supported by the receiving entity.
*/
@XmlType(factoryMethod = "create")
private static final class UnsupportedMethod extends Condition {
private UnsupportedMethod() {
}
private static UnsupportedMethod create() {
return (UnsupportedMethod) UNSUPPORTED_METHOD;
}
}
}
/**
* The implementation of the {@code
* This class is immutable.
*
* @author Christian Schudt
* @see XEP-0138: Stream Compression
* @see XML Schema
*/
@XmlRootElement
public static final class Compress implements StreamElement {
private final String method;
private Compress() {
this.method = null;
}
public Compress(String method) {
this.method = Objects.requireNonNull(method);
}
/**
* Gets the compression method.
*
* @return The compression method.
*/
public final String getMethod() {
return method;
}
}
/**
* The implementation of the {@code