Add Message.toString() providing a short description

smack-core/src/main/java/org/jivesoftware/smack/packet/IQ.java

@@ -112,6 +112,18 @@ public abstract class IQ extends Stanza {
         return childElementNamespace;
     }
 
+    @Override
+    public final String toString() {
+            StringBuilder sb = new StringBuilder();
+            sb.append("IQ Stanza (");
+            sb.append(getChildElementName()).append(' ').append(getChildElementNamespace());
+            sb.append(") [");
+            logCommonAttributes(sb);
+            sb.append("type=").append(type).append(',');
+            sb.append(']');
+            return sb.toString();
+    }
+
     @Override
     public final XmlStringBuilder toXML() {
         XmlStringBuilder buf = new XmlStringBuilder();

smack-core/src/main/java/org/jivesoftware/smack/packet/Message.java

@@ -418,6 +418,18 @@ public final class Message extends Stanza implements TypedCloneable<Message> {
 
     }
 
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append("Message Stanza [");
+        logCommonAttributes(sb);
+        if (type != null) {
+            sb.append("type=").append(type).append(',');
+        }
+        sb.append(']');
+        return sb.toString();
+    }
+
     @Override
     public XmlStringBuilder toXML() {
         XmlStringBuilder buf = new XmlStringBuilder();

smack-core/src/main/java/org/jivesoftware/smack/packet/Presence.java

@@ -21,6 +21,7 @@ import java.util.Locale;
 
 import org.jivesoftware.smack.packet.id.StanzaIdUtil;
 import org.jivesoftware.smack.util.Objects;
+import org.jivesoftware.smack.util.StringUtils;
 import org.jivesoftware.smack.util.TypedCloneable;
 import org.jivesoftware.smack.util.XmlStringBuilder;
 
@@ -222,6 +223,25 @@ public final class Presence extends Stanza implements TypedCloneable<Presence> {
         this.mode = mode;
     }
 
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append("Presence Stanza [");
+        logCommonAttributes(sb);
+        sb.append("type=").append(type).append(',');
+        if (mode != null) {
+            sb.append("mode=").append(mode).append(',');
+        }
+        if (!StringUtils.isNullOrEmpty(status)) {
+            sb.append("status=").append(status).append(',');
+        }
+        if (priority != Integer.MIN_VALUE) {
+            sb.append("prio=").append(priority).append(',');
+        }
+        sb.append(']');
+        return sb.toString();
+    }
+
     @Override
     public XmlStringBuilder toXML() {
         XmlStringBuilder buf = new XmlStringBuilder();

smack-core/src/main/java/org/jivesoftware/smack/packet/Stanza.java

@@ -458,11 +458,11 @@ public abstract class Stanza implements TopLevelStreamElement {
         return removeExtension(extension.getElementName(), extension.getNamespace());
     }
 
+    /**
+     * Returns a short String describing the Stanza. This method is suited for log purposes.
+     */
     @Override
-    // NOTE When Smack is using Java 8, then this method should be moved in Element as "Default Method".
-    public String toString() {
-        return toXML().toString();
-    }
+    public abstract String toString();
 
     /**
      * Returns the extension sub-packets (including properties data) as an XML
@@ -501,6 +501,18 @@ public abstract class Stanza implements TopLevelStreamElement {
         xml.xmllangAttribute(getLanguage());
     }
 
+    protected void logCommonAttributes(StringBuilder sb) {
+        if (getTo() != null) {
+            sb.append("to=").append(to).append(',');
+        }
+        if (getFrom() != null) {
+            sb.append("from=").append(from).append(',');
+        }
+        if (hasStanzaIdSet()) {
+            sb.append("id=").append(id).append(',');
+        }
+    }
+
     /**
      * Append an XMPPError is this stanza(/packet) has one set.
      *

smack-core/src/test/java/org/jivesoftware/smack/PacketCollectorTest.java

@@ -206,5 +206,10 @@ public class PacketCollectorTest
 		{
 			return "<packetId>" + getStanzaId() + "</packetId>";
 		}
+
+        @Override
+        public String toString() {
+            return toXML();
+        }
 	}
 }

smack-core/src/test/java/org/jivesoftware/smack/packet/ToStringTest.java

@@ -0,0 +1,51 @@
+/**
+ *
+ * Copyright © 2016 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.smack.packet;
+
+import static org.junit.Assert.assertEquals;
+
+import org.jivesoftware.smack.packet.Presence.Mode;
+import org.junit.Test;
+import org.jxmpp.jid.JidTestUtil;
+import org.jxmpp.stringprep.XmppStringprepException;
+
+public class ToStringTest {
+
+    @Test
+    public void messageTest() {
+        Message message = new Message(JidTestUtil.BARE_JID_1, Message.Type.headline);
+        message.setStanzaId("message-id");
+        String string = message.toString();
+        assertEquals("Message Stanza [to=one@exampleone.org,id=message-id,type=headline,]", string);
+    }
+
+    @Test
+    public void presenceTest() {
+        Presence presence = new Presence(Presence.Type.subscribe, null, 0, Mode.away);
+        presence.setStanzaId("presence-id");
+        String string = presence.toString();
+        assertEquals("Presence Stanza [id=presence-id,type=subscribe,mode=away,prio=0,]", string);
+    }
+
+    @Test
+    public void iqTest() throws XmppStringprepException {
+        Bind bindIq = Bind.newResult(JidTestUtil.DUMMY_AT_EXAMPLE_ORG_SLASH_DUMMYRESOURCE);
+        bindIq.setStanzaId("bind-id");
+        String string = bindIq.toString();
+        assertEquals("IQ Stanza (bind urn:ietf:params:xml:ns:xmpp-bind) [id=bind-id,type=get,]", string);
+    }
+}

smack-debug/src/main/java/org/jivesoftware/smackx/debugger/EnhancedDebugger.java

@@ -996,6 +996,11 @@ public class EnhancedDebugger implements SmackDebugger {
             return text;
         }
 
+        @Override
+        public String toString() {
+            return toXML();
+        }
+
     }
 
     /**

smack-extensions/src/main/java/org/jivesoftware/smackx/address/MultipleRecipientManager.java

@@ -311,6 +311,11 @@ public class MultipleRecipientManager {
             return text;
         }
 
+        @Override
+        public String toString() {
+            return toXML().toString();
+        }
+
     }
 
 }