diff options
| -rw-r--r-- | framework/bundles/org.eclipse.ecf.provider/src/org/eclipse/ecf/provider/app/ServerConfigParser.java | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/framework/bundles/org.eclipse.ecf.provider/src/org/eclipse/ecf/provider/app/ServerConfigParser.java b/framework/bundles/org.eclipse.ecf.provider/src/org/eclipse/ecf/provider/app/ServerConfigParser.java new file mode 100644 index 000000000..a4757c950 --- /dev/null +++ b/framework/bundles/org.eclipse.ecf.provider/src/org/eclipse/ecf/provider/app/ServerConfigParser.java @@ -0,0 +1,159 @@ +package org.eclipse.ecf.provider.app; + +import java.io.IOException; +import java.io.InputStream; +import java.util.ArrayList; +import java.util.Iterator; +import java.util.List; + +import javax.xml.parsers.DocumentBuilder; +import javax.xml.parsers.DocumentBuilderFactory; +import javax.xml.parsers.ParserConfigurationException; + +import org.w3c.dom.Document; +import org.w3c.dom.DocumentType; +import org.w3c.dom.Entity; +import org.w3c.dom.NamedNodeMap; +import org.w3c.dom.Node; +import org.xml.sax.SAXException; + +public class ServerConfigParser { + + public static final int DEFAULT_PORT = 3282; + public static final long DEFAULT_TIMEOUT = 10000L; + + public static final String SERVER_ELEMENT = "server"; + public static final String CONNECTOR_ELEMENT = "connector"; + public static final String GROUP_ELEMENT = "group"; + + public static final String PORT_ATTR = "port"; + public static final String TIMEOUT_ATTR = "timeout"; + public static final String NAME_ATTR = "name"; + + protected int defaultPort = DEFAULT_PORT; + protected long defaultTimeout = DEFAULT_TIMEOUT; + + class Connector { + int port = defaultPort; + long timeout = defaultTimeout; + List groups = new ArrayList(); + + public Connector() { + + } + public Connector(int port, long timeout) { + this.port = port; + this.timeout = timeout; + } + public void addGroup(NamedGroup grp) { + groups.add(grp); + } + public int getPort() { + return port; + } + public long getTimeout() { + return timeout; + } + public List getGroups() { + return groups; + } + } + class NamedGroup { + Connector parent; + String name; + + public NamedGroup(String name) { + this.name = name; + } + protected void setParent(Connector c) { + this.parent = c; + } + public String getGroup() { + return name; + } + } + protected void findElementsNamed(Node top, String name, List aList) { + int type = top.getNodeType(); + switch (type) { + case Node.DOCUMENT_TYPE_NODE: + // Print entities if any + NamedNodeMap nodeMap = ((DocumentType) top).getEntities(); + for (int i = 0; i < nodeMap.getLength(); i++) { + Entity entity = (Entity) nodeMap.item(i); + findElementsNamed(entity, name, aList); + } + break; + case Node.ELEMENT_NODE: + String elementName = top.getNodeName(); + if (name.equals(elementName)) { + aList.add(top); + } + default: + for (Node child = top.getFirstChild(); child != null; child = child + .getNextSibling()) { + findElementsNamed(child, name, aList); + } + } + } + protected List processConnectorNodes(List connectorNodes) { + List res = new ArrayList(); + for(Iterator i=connectorNodes.iterator(); i.hasNext(); ) { + Node n = (Node) i.next(); + String ports = getAttributeValue(n,PORT_ATTR); + int port = defaultPort; + if (ports != null) { + try { + Integer porti = new Integer(ports); + port = porti.intValue(); + } catch (NumberFormatException e) { + // ignore + } + } + String timeouts = getAttributeValue(n,TIMEOUT_ATTR); + long timeout = defaultTimeout; + if (timeouts != null) { + try { + Long timeouti = new Long(timeouts); + timeout = timeouti.longValue(); + } catch (NumberFormatException e) { + // ignore + } + } + Connector c = new Connector(port,timeout); + processConnector(n,c); + res.add(c); + } + return res; + } + protected void processConnector(Node n, Connector c) { + List groupList = new ArrayList(); + findElementsNamed(n,GROUP_ELEMENT,groupList); + for(Iterator i=groupList.iterator(); i.hasNext(); ) { + Node node = (Node) i.next(); + String name = getAttributeValue(n,NAME_ATTR); + if (name != null && !name.equals("")) { + NamedGroup g = new NamedGroup(name); + c.addGroup(g); + } + } + } + protected List loadConnectors(Document doc) { + List ps = new ArrayList(); + findElementsNamed(doc,CONNECTOR_ELEMENT,ps); + return processConnectorNodes(ps); + } + protected String getAttributeValue(Node node, String attrName) { + NamedNodeMap attrs = node.getAttributes(); + Node attrNode = attrs.getNamedItem(attrName); + if (attrNode != null) { + return attrNode.getNodeValue(); + } else + return ""; + } + public List load(InputStream ins) throws ParserConfigurationException, SAXException, IOException { + DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); + DocumentBuilder db = dbf.newDocumentBuilder(); + Document doc = db.parse(ins); + return loadConnectors(doc); + } +} |