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-rw-r--r--src/main/java/de/thedevstack/conversationsplus/xmpp/IqPacketParser.java51
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);
+ }
+}