Basic filetransfer http delete implementation; Exceptions for IqPacketError added

1 files changed, 51 insertions, 0 deletions

diff --git a/src/main/java/de/thedevstack/conversationsplus/xmpp/IqPacketParser.java b/src/main/java/de/thedevstack/conversationsplus/xmpp/IqPacketParser.java
new file mode 100644
index 00000000..7c198ce9
--- /dev/null
+++ b/src/main/java/de/thedevstack/conversationsplus/xmpp/IqPacketParser.java
@@ -0,0 +1,51 @@
+package de.thedevstack.conversationsplus.xmpp;
+
+import de.thedevstack.conversationsplus.xml.Element;
+import de.thedevstack.conversationsplus.xmpp.exceptions.MissingRequiredContentException;
+import de.thedevstack.conversationsplus.xmpp.exceptions.MissingRequiredElementException;
+
+/**
+ *
+ */
+public abstract class IqPacketParser {
+    public static Element findRequiredChild(Element element, String elementName, String namespace) throws MissingRequiredElementException {
+        Element child = findChild(element, elementName, namespace);
+        if (child == null) {
+            throw new MissingRequiredElementException(elementName, namespace, element);
+        }
+        return child;
+    }
+
+    public static Element findChild(Element element, String elementName, String namespace) {
+        if (null == element) {
+            return null;
+        }
+        return element.findChild(elementName, namespace);
+    }
+
+    public static String findRequiredChildContent(Element element, String elementName) throws MissingRequiredContentException {
+        if (null == element) {
+            return null;
+        }
+        String childContent = element.findChildContent(elementName);
+        if (null == childContent) {
+            throw new MissingRequiredContentException(elementName, element);
+        }
+        return childContent;
+    }
+
+    public static String findRequiredChildContent(Element element, String elementName, String namespace) throws MissingRequiredContentException {
+        String childContent = findChildContent(element, elementName, namespace);
+        if (null == childContent) {
+            throw new MissingRequiredContentException(elementName, namespace, element);
+        }
+        return childContent;
+    }
+
+    public static String findChildContent(Element element, String elementName, String namespace) {
+        if (null == element) {
+            return null;
+        }
+        return element.findChildContent(elementName, namespace);
+    }
+}