1 files changed, 104 insertions, 0 deletions
diff --git a/src/main/java/eu/siacs/conversations/xml/Tag.java b/src/main/java/eu/siacs/conversations/xml/Tag.java
new file mode 100644
index 00000000..b9ef979f
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/xml/Tag.java
@@ -0,0 +1,104 @@
+package eu.siacs.conversations.xml;
+
+import java.util.Hashtable;
+import java.util.Iterator;
+import java.util.Map.Entry;
+import java.util.Set;
+
+import eu.siacs.conversations.utils.XmlHelper;
+
+public class Tag {
+	public static final int NO = -1;
+	public static final int START = 0;
+	public static final int END = 1;
+	public static final int EMPTY = 2;
+
+	protected int type;
+	protected String name;
+	protected Hashtable<String, String> attributes = new Hashtable<String, String>();
+
+	protected Tag(int type, String name) {
+		this.type = type;
+		this.name = name;
+	}
+
+	public static Tag no(String text) {
+		return new Tag(NO, text);
+	}
+
+	public static Tag start(String name) {
+		return new Tag(START, name);
+	}
+
+	public static Tag end(String name) {
+		return new Tag(END, name);
+	}
+
+	public static Tag empty(String name) {
+		return new Tag(EMPTY, name);
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public String getAttribute(String attrName) {
+		return this.attributes.get(attrName);
+	}
+
+	public Tag setAttribute(String attrName, String attrValue) {
+		this.attributes.put(attrName, attrValue);
+		return this;
+	}
+
+	public Tag setAtttributes(Hashtable<String, String> attributes) {
+		this.attributes = attributes;
+		return this;
+	}
+
+	public boolean isStart(String needle) {
+		if (needle == null)
+			return false;
+		return (this.type == START) && (needle.equals(this.name));
+	}
+
+	public boolean isEnd(String needle) {
+		if (needle == null)
+			return false;
+		return (this.type == END) && (needle.equals(this.name));
+	}
+
+	public boolean isNo() {
+		return (this.type == NO);
+	}
+
+	public String toString() {
+		StringBuilder tagOutput = new StringBuilder();
+		tagOutput.append('<');
+		if (type == END) {
+			tagOutput.append('/');
+		}
+		tagOutput.append(name);
+		if (type != END) {
+			Set<Entry<String, String>> attributeSet = attributes.entrySet();
+			Iterator<Entry<String, String>> it = attributeSet.iterator();
+			while (it.hasNext()) {
+				Entry<String, String> entry = it.next();
+				tagOutput.append(' ');
+				tagOutput.append(entry.getKey());
+				tagOutput.append("=\"");
+				tagOutput.append(XmlHelper.encodeEntities(entry.getValue()));
+				tagOutput.append('"');
+			}
+		}
+		if (type == EMPTY) {
+			tagOutput.append('/');
+		}
+		tagOutput.append('>');
+		return tagOutput.toString();
+	}
+
+	public Hashtable<String, String> getAttributes() {
+		return this.attributes;
+	}
+}