1 files changed, 181 insertions, 0 deletions
diff --git a/src/main/java/eu/siacs/conversations/xml/Element.java b/src/main/java/eu/siacs/conversations/xml/Element.java
new file mode 100644
index 00000000..6875364a
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/xml/Element.java
@@ -0,0 +1,181 @@
+package eu.siacs.conversations.xml;
+
+import de.thedevstack.conversationsplus.utils.Logging;
+
+import java.util.ArrayList;
+import java.util.Hashtable;
+import java.util.List;
+
+import eu.siacs.conversations.Config;
+import eu.siacs.conversations.utils.XmlHelper;
+import eu.siacs.conversations.xmpp.jid.InvalidJidException;
+import eu.siacs.conversations.xmpp.jid.Jid;
+
+public class Element {
+	protected String name;
+	protected Hashtable<String, String> attributes = new Hashtable<>();
+	protected String content;
+	protected List<Element> children = new ArrayList<>();
+
+	public Element(String name) {
+		this.name = name;
+	}
+
+	public Element addChild(Element child) {
+		this.content = null;
+		children.add(child);
+		return child;
+	}
+
+	public Element addChild(String name) {
+		this.content = null;
+		Element child = new Element(name);
+		children.add(child);
+		return child;
+	}
+
+	public Element addChild(String name, String xmlns) {
+		this.content = null;
+		Element child = new Element(name);
+		child.setAttribute("xmlns", xmlns);
+		children.add(child);
+		return child;
+	}
+
+	public Element setContent(String content) {
+		this.content = content;
+		this.children.clear();
+		return this;
+	}
+
+	public Element findChild(String name) {
+		for (Element child : this.children) {
+			if (child.getName().equals(name)) {
+				return child;
+			}
+		}
+		return null;
+	}
+
+	public String findChildContent(String name) {
+		Element element = findChild(name);
+		return element == null ? null : element.getContent();
+	}
+
+	public Element findChild(String name, String xmlns) {
+		for (Element child : this.children) {
+			if (child.getName().equals(name)
+					&& (child.getAttribute("xmlns").equals(xmlns))) {
+				return child;
+					}
+		}
+		return null;
+	}
+
+	public String findChildContent(String name, String xmlns) {
+		Element element = findChild(name,xmlns);
+		return element == null ? null : element.getContent();
+	}
+
+	public boolean hasChild(final String name) {
+		return findChild(name) != null;
+	}
+
+	public boolean hasChild(final String name, final String xmlns) {
+		return findChild(name, xmlns) != null;
+	}
+
+	public List<Element> getChildren() {
+		return this.children;
+	}
+
+	public Element setChildren(List<Element> children) {
+		this.children = children;
+		return this;
+	}
+
+	public String getContent() {
+		return content;
+	}
+
+	public Element setAttribute(String name, String value) {
+		if (name != null && value != null) {
+			this.attributes.put(name, value);
+		}
+		return this;
+	}
+
+	public Element setAttributes(Hashtable<String, String> attributes) {
+		this.attributes = attributes;
+		return this;
+	}
+
+	public String getAttribute(String name) {
+		if (this.attributes.containsKey(name)) {
+			return this.attributes.get(name);
+		} else {
+			return null;
+		}
+	}
+
+	public Jid getAttributeAsJid(String name) {
+		final String jid = this.getAttribute(name);
+		if (jid != null && !jid.isEmpty()) {
+			try {
+				return Jid.fromString(jid);
+			} catch (final InvalidJidException e) {
+				Logging.e(Config.LOGTAG, "could not parse jid " + jid);
+				return null;
+			}
+		}
+		return null;
+	}
+
+	public Hashtable<String, String> getAttributes() {
+		return this.attributes;
+	}
+
+	public String toString() {
+		StringBuilder elementOutput = new StringBuilder();
+		if ((content == null) && (children.size() == 0)) {
+			Tag emptyTag = Tag.empty(name);
+			emptyTag.setAtttributes(this.attributes);
+			elementOutput.append(emptyTag.toString());
+		} else {
+			Tag startTag = Tag.start(name);
+			startTag.setAtttributes(this.attributes);
+			elementOutput.append(startTag);
+			if (content != null) {
+				elementOutput.append(XmlHelper.encodeEntities(content));
+			} else {
+				for (Element child : children) {
+					elementOutput.append(child.toString());
+				}
+			}
+			Tag endTag = Tag.end(name);
+			elementOutput.append(endTag);
+		}
+		return elementOutput.toString();
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void clearChildren() {
+		this.children.clear();
+	}
+
+	public void setAttribute(String name, long value) {
+		this.setAttribute(name, Long.toString(value));
+	}
+
+	public void setAttribute(String name, int value) {
+		this.setAttribute(name, Integer.toString(value));
+	}
+
+	public boolean getAttributeAsBoolean(String name) {
+		String attr = getAttribute(name);
+		return (attr != null && (attr.equalsIgnoreCase("true") || attr.equalsIgnoreCase("1")));
+	}
+}