mirror of
https://github.com/vanitasvitae/Smack.git
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e98d42790a
This commit adds - SmackReactor / NIO - a framework for finite state machine connections - support for Java 8 - pretty printed XML debug output It also - reworks the integration test framework - raises the minimum Android API level to 19 - introduces XmppNioTcpConnection Furthermore fixes SMACK-801 (at least partly). Java 8 language features are available, but not all runtime library methods. For that we would need to raise the Android API level to 24 or higher.
177 lines
6.3 KiB
Java
177 lines
6.3 KiB
Java
/**
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*
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* Copyright 2018 Florian Schmaus
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smack;
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import java.util.HashMap;
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import java.util.Map;
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import org.jivesoftware.smack.SmackException.NoResponseException;
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import org.jivesoftware.smack.SmackException.NotConnectedException;
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import org.jivesoftware.smack.XMPPException.FailedNonzaException;
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import org.jivesoftware.smack.packet.Nonza;
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import org.jivesoftware.smack.util.XmppElementUtil;
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import org.jxmpp.util.XmppStringUtils;
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public class NonzaCallback {
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protected final AbstractXMPPConnection connection;
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protected final Map<String, GenericElementListener<? extends Nonza>> filterAndListeners;
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private NonzaCallback(Builder builder) {
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this.connection = builder.connection;
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this.filterAndListeners = builder.filterAndListeners;
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install();
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}
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void onNonzaReceived(Nonza nonza) {
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String key = XmppStringUtils.generateKey(nonza.getElementName(), nonza.getNamespace());
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GenericElementListener<? extends Nonza> nonzaListener = filterAndListeners.get(key);
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nonzaListener.processElement(nonza);
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}
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public void cancel() {
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synchronized (connection.nonzaCallbacks) {
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for (Map.Entry<String, GenericElementListener<? extends Nonza>> entry : filterAndListeners.entrySet()) {
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String filterKey = entry.getKey();
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NonzaCallback installedCallback = connection.nonzaCallbacks.get(filterKey);
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if (equals(installedCallback)) {
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connection.nonzaCallbacks.remove(filterKey);
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}
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}
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}
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}
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protected void install() {
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if (filterAndListeners.isEmpty()) {
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return;
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}
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synchronized (connection.nonzaCallbacks) {
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for (String key : filterAndListeners.keySet()) {
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connection.nonzaCallbacks.put(key, this);
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}
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}
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}
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private static final class NonzaResponseCallback<SN extends Nonza, FN extends Nonza> extends NonzaCallback {
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private SN successNonza;
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private FN failedNonza;
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private NonzaResponseCallback(Class<? extends SN> successNonzaClass, Class<? extends FN> failedNonzaClass,
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Builder builder) {
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super(builder);
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final String successNonzaKey = XmppElementUtil.getKeyFor(successNonzaClass);
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final String failedNonzaKey = XmppElementUtil.getKeyFor(failedNonzaClass);
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final GenericElementListener<SN> successListener = new GenericElementListener<SN>(successNonzaClass) {
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@Override
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public void process(SN successNonza) {
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NonzaResponseCallback.this.successNonza = successNonza;
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notifyResponse();
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}
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};
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final GenericElementListener<FN> failedListener = new GenericElementListener<FN>(failedNonzaClass) {
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@Override
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public void process(FN failedNonza) {
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NonzaResponseCallback.this.failedNonza = failedNonza;
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notifyResponse();
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}
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};
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filterAndListeners.put(successNonzaKey, successListener);
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filterAndListeners.put(failedNonzaKey, failedListener);
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install();
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}
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private void notifyResponse() {
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synchronized (this) {
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notifyAll();
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}
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}
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private boolean hasReceivedSuccessOrFailedNonza() {
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return successNonza != null || failedNonza != null;
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}
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private SN waitForResponse() throws NoResponseException, InterruptedException, FailedNonzaException {
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final long deadline = System.currentTimeMillis() + connection.getReplyTimeout();
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synchronized (this) {
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while (!hasReceivedSuccessOrFailedNonza()) {
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final long now = System.currentTimeMillis();
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if (now >= deadline) break;
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wait(deadline - now);
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}
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}
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if (!hasReceivedSuccessOrFailedNonza()) {
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throw NoResponseException.newWith(connection, "Nonza Listener");
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}
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if (failedNonza != null) {
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throw new XMPPException.FailedNonzaException(failedNonza);
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}
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assert successNonza != null;
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return successNonza;
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}
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}
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public static final class Builder {
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private final AbstractXMPPConnection connection;
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private Map<String, GenericElementListener<? extends Nonza>> filterAndListeners = new HashMap<>();
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Builder(AbstractXMPPConnection connection) {
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this.connection = connection;
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}
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public <N extends Nonza> Builder listenFor(Class<? extends N> nonza, GenericElementListener<? extends N> nonzaListener) {
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String key = XmppElementUtil.getKeyFor(nonza);
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filterAndListeners.put(key, nonzaListener);
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return this;
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}
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public NonzaCallback install() {
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return new NonzaCallback(this);
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}
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}
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static <SN extends Nonza, FN extends Nonza> SN sendAndWaitForResponse(NonzaCallback.Builder builder, Nonza nonza, Class<SN> successNonzaClass,
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Class<FN> failedNonzaClass)
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throws NoResponseException, NotConnectedException, InterruptedException, FailedNonzaException {
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NonzaResponseCallback<SN, FN> nonzaCallback = new NonzaResponseCallback<>(successNonzaClass,
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failedNonzaClass, builder);
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SN successNonza;
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try {
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nonzaCallback.connection.sendNonza(nonza);
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successNonza = nonzaCallback.waitForResponse();
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}
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finally {
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nonzaCallback.cancel();
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}
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return successNonza;
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}
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}
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