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Add support for XEP-335: JSON Containers

and GCM JSON payloads for Google's GCM Cloud Connection Server.
This commit is contained in:
Florian Schmaus 2014-10-29 23:47:47 +01:00
parent ed66c838e1
commit e63fe22647
9 changed files with 271 additions and 0 deletions

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@ -67,6 +67,8 @@ Experimental Smack Extensions and currently supported XEPs by Smack (smack-exper
|---------------------------------------------|----------------------------------------------------------|----------------------------------------------------------------------------------------------------------|
| Message Carbons | [XEP-0280](http://xmpp.org/extensions/xep-0280.html) | Keep all IM clients for a user engaged in a conversation, by carbon-copy outbound messages to all interested resources.
| [HTTP over XMPP transport](hoxt.html) | [XEP-0332](http://xmpp.org/extensions/xep-0332.html) | Allows to transport HTTP communication over XMPP peer-to-peer networks. |
| JSON Containers | [XEP-0335](http://xmpp.org/extensions/xep-0335.html) | Encapsulation of JSON data within XMPP Stanzas. |
| Google GCM JSON payload | n/a | Semantically the same as XEP-0335: JSON Containers |
| Client State Indication | [XEP-0352](http://xmpp.org/extensions/xep-0352.html) | A way for the client to indicate its active/inactive state. |

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@ -125,6 +125,10 @@ public class ProviderFileLoader implements ProviderLoader {
LOGGER.log(Level.SEVERE, "Could not find provider class", cnfe);
exceptions.add(cnfe);
}
catch (InstantiationException ie) {
LOGGER.log(Level.SEVERE, "Could not instanciate " + className, ie);
exceptions.add(ie);
}
}
}
catch (IllegalArgumentException illExc) {

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@ -0,0 +1,59 @@
/**
*
* Copyright © 2014 Florian Schmaus
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smackx.gcm.packet;
import org.jivesoftware.smack.packet.Packet;
import org.jivesoftware.smackx.json.packet.AbstractJsonPacketExtension;
/**
* XMPP extension elements as used by Google's GCM Cloud Connection Server (XMPP).
* <p>
* This extension is semantically the same as {@link org.jivesoftware.smackx.json.packet.JsonPacketExtension}, but with
* a different element and namespace. It is used to exchange message stanzas with a JSON payload as extension element.
* </p>
*
* @see <a href="https://developer.android.com/google/gcm/ccs.html">GCM Cloud Connection Server (XMPP)</a>
*/
public class GcmPacketExtension extends AbstractJsonPacketExtension {
public static final String ELEMENT = "gcm";
public static final String NAMESPACE = "google:mobile:data";
public GcmPacketExtension(String json) {
super(json);
}
@Override
public String getNamespace() {
return NAMESPACE;
}
@Override
public String getElementName() {
return ELEMENT;
}
/**
* Retrieve the GCM packet extension from the packet.
*
* @param packet
* @return the GCM packet extension or null.
*/
public static GcmPacketExtension from(Packet packet) {
return packet.getExtension(ELEMENT, NAMESPACE);
}
}

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@ -0,0 +1,29 @@
/**
*
* Copyright © 2014 Florian Schmaus
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smackx.gcm.provider;
import org.jivesoftware.smackx.gcm.packet.GcmPacketExtension;
import org.jivesoftware.smackx.json.packet.AbstractJsonPacketExtension;
import org.jivesoftware.smackx.json.provider.AbstractJsonExtensionProvider;
public class GcmExtensionProvider extends AbstractJsonExtensionProvider {
@Override
public AbstractJsonPacketExtension from(String json) {
return new GcmPacketExtension(json);
}
}

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@ -0,0 +1,42 @@
/**
*
* Copyright © 2014 Florian Schmaus
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smackx.json.packet;
import org.jivesoftware.smack.packet.PacketExtension;
import org.jivesoftware.smack.util.XmlStringBuilder;
public abstract class AbstractJsonPacketExtension implements PacketExtension {
private final String json;
protected AbstractJsonPacketExtension(String json) {
this.json = json;
}
public final String getJson() {
return json;
}
@Override
public final XmlStringBuilder toXML() {
XmlStringBuilder xml = new XmlStringBuilder(this);
xml.rightAngleBracket();
xml.append(json);
xml.closeElement(this);
return xml;
}
}

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@ -0,0 +1,54 @@
/**
*
* Copyright © 2014 Florian Schmaus
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smackx.json.packet;
import org.jivesoftware.smack.packet.Packet;
/**
* XMPP JSON Containers as defined in XEP-0335
*
* @see <a href="http://xmpp.org/extensions/xep-0335.html">XEP-0335: JSON Containers</a>
*/
public class JsonPacketExtension extends AbstractJsonPacketExtension {
public static final String ELEMENT = "json";
public static final String NAMESPACE = "urn:xmpp:json:0";
public JsonPacketExtension(String json) {
super(json);
}
@Override
public String getNamespace() {
return NAMESPACE;
}
@Override
public String getElementName() {
return ELEMENT;
}
/**
* Retrieve the JSON packet extension from the packet.
*
* @param packet
* @return the JSON packet extension or null.
*/
public static JsonPacketExtension from(Packet packet) {
return packet.getExtension(ELEMENT, NAMESPACE);
}
}

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@ -0,0 +1,39 @@
/**
*
* Copyright © 2014 Florian Schmaus
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smackx.json.provider;
import java.io.IOException;
import org.jivesoftware.smack.SmackException;
import org.jivesoftware.smack.provider.PacketExtensionProvider;
import org.jivesoftware.smack.util.PacketParserUtils;
import org.jivesoftware.smackx.json.packet.AbstractJsonPacketExtension;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
public abstract class AbstractJsonExtensionProvider extends PacketExtensionProvider<AbstractJsonPacketExtension> {
@Override
public AbstractJsonPacketExtension parse(XmlPullParser parser, int initialDepth) throws XmlPullParserException,
IOException, SmackException {
String json = PacketParserUtils.parseElementText(parser);
parser.next();
return from(json);
}
public abstract AbstractJsonPacketExtension from(String json);
}

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@ -0,0 +1,28 @@
/**
*
* Copyright © 2014 Florian Schmaus
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smackx.json.provider;
import org.jivesoftware.smackx.json.packet.AbstractJsonPacketExtension;
import org.jivesoftware.smackx.json.packet.JsonPacketExtension;
public class JsonExtensionProvider extends AbstractJsonExtensionProvider {
@Override
public AbstractJsonPacketExtension from(String json) {
return new JsonPacketExtension(json);
}
}

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@ -38,4 +38,18 @@
<className>org.jivesoftware.smackx.csi.provider.ClientStateIndicationFeatureProvider</className>
</streamFeatureProvider>
<!-- XEP-0335 JSON Containers -->
<extensionProvider>
<elementName>json</elementName>
<namespace>urn:xmpp:json:0</namespace>
<className>org.jivesoftware.smackx.json.provider.JsonExtensionProvider</className>
</extensionProvider>
<!-- GCM JSON payload -->
<extensionProvider>
<elementName>gcm</elementName>
<namespace></namespace>
<className>org.jivesoftware.smackx.gcm.provider.GcmExtensionProvider</className>
</extensionProvider>
</smackProviders>