1 files changed, 55 insertions, 0 deletions
diff --git a/src/com/isode/stroke/serializer/payloadserializers/BlockSerializer.java b/src/com/isode/stroke/serializer/payloadserializers/BlockSerializer.java
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+++ b/src/com/isode/stroke/serializer/payloadserializers/BlockSerializer.java
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+/*  Copyright (c) 2016, Isode Limited, London, England.
+ *  All rights reserved.
+ *
+ *  Acquisition and use of this software and related materials for any
+ *  purpose requires a written license agreement from Isode Limited,
+ *  or a written license from an organisation licensed by Isode Limited
+ *  to grant such a license.
+ *
+ */
+package com.isode.stroke.serializer.payloadserializers;
+
+import com.isode.stroke.elements.AbstractBlockPayload;
+import com.isode.stroke.jid.JID;
+import com.isode.stroke.serializer.GenericPayloadSerializer;
+import com.isode.stroke.serializer.xml.XMLElement;
+
+/**
+ * Abstract class for serializing pay loads of type {@link AbstractBlockPayload}
+ * 
+ * @param <T> Type of {@link AbstractBlockPayload} to serialize
+ */
+public abstract class BlockSerializer<T extends AbstractBlockPayload> extends GenericPayloadSerializer<T> {
+    /*
+     * Note this is slightly different to Swiften code as templates in C++ work
+     * different to Java Generics.  In Swiften there exits a BlockSerialize template
+     * for which instances can be created of type <BlockPayload>, <BlockListPayload> and
+     * <UnblockPayload>.  In Java as we need to pass an instance of the class to the constructor
+     * (which we can't do with generics) we need to create specific sub types for each of 
+     * the different Block payloads.
+     */
+    
+    private final String tag;
+    
+    /**
+     * Constructor
+     * @param c Class of the {@link AbstractBlockPayload} that this will serialize
+     * @param tag Tag for the XML element to serialize
+     */
+    protected BlockSerializer(Class<T> c,String tag) {
+        super(c);
+        this.tag = tag;
+    }
+
+    @Override
+    protected String serializePayload(T payload) {
+        XMLElement element = new XMLElement(tag,"urn:xmpp:blocking");
+        for (JID jid : payload.getItems()) {
+            XMLElement item = new XMLElement("item");
+            item.setAttribute("jid", jid.toString());
+            element.addNode(item);
+        }
+        return element.serialize();
+    }
+
+}