package eu.siacs.conversations.xml; import java.util.ArrayList; import java.util.Hashtable; import java.util.List; import de.thedevstack.android.logcat.Logging; 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 { private final String name; private Hashtable attributes = new Hashtable<>(); private String content; protected List children = new ArrayList<>(); public Element(String name) { this.name = name; } public Element(String name, String xmlns) { this.name = name; this.setAttribute("xmlns", xmlns); } 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 (name.equals(child.getName()) && xmlns.equals(child.getAttribute("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 getChildren() { return this.children; } public Element setChildren(List children) { this.children = children; return this; } public final 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 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 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 final 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"))); } public String getNamespace() { return getAttribute("xmlns"); } }