Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/server/features/XMLFileFeatures.java @ 3497:88feb3347aa5
Implement a ProxyServlet
Implement a ProxyServlet to be able to restrict the access to the
mapserver too. All queries to the provided map services should go throught
this new ProxyServlet. Currently the ProxyServlet can only handle HTTP GET
requests.
flys-client/trunk@5221 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Bjoern Ricks <bjoern.ricks@intevation.de> |
---|---|
date | Thu, 16 Aug 2012 14:42:36 +0000 |
parents | 5f628a13ca9f |
children | 02cf2b1dff84 |
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package de.intevation.flys.client.server.features; import java.io.FileInputStream; import java.io.IOException; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.xml.xpath.XPathConstants; import org.apache.log4j.Logger; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import de.intevation.artifacts.common.utils.XMLUtils; public class XMLFileFeatures implements Features { private static final Logger logger = Logger.getLogger(XMLFileFeatures.class); private Map<String, List<String>> featuremap = new HashMap<String, List<String>>(); private final static String XPATH_FEATURES = "ftr:feature/child::text()"; private final static String XPATH_ROLES = "/ftr:features/ftr:role"; public XMLFileFeatures(String filename) throws IOException { FileInputStream finput = new FileInputStream(filename); try { Document doc = XMLUtils.parseDocument(finput); NodeList roles = (NodeList) XMLUtils.xpath( doc, XPATH_ROLES, XPathConstants.NODESET, FeaturesNamespaceContext.INSTANCE); for(int i = 0, m = roles.getLength(); i < m; i++) { Element rolenode = (Element)roles.item(i); String name = rolenode.getAttribute("name"); logger.debug("Found role: " + name); NodeList features = (NodeList) XMLUtils.xpath( rolenode, XPATH_FEATURES, XPathConstants.NODESET, FeaturesNamespaceContext.INSTANCE); if (features == null) { continue; } int N = features.getLength(); if (N > 0) { List<String> allowed = new ArrayList<String>(N); for (int j = 0; j < N; j++) { Node featurenode = features.item(j); String featurename = featurenode.getNodeValue(); logger.debug("Found feature: " + featurename); allowed.add(featurename); } featuremap.put(name, allowed); } } logger.debug("Loaded all features"); } finally { finput.close(); } } @Override public List<String> getFeatures(List<String> roles) { List<String> features = new ArrayList<String>(); for (String role: roles) { List<String> allowed = this.featuremap.get(role); if (allowed != null) { features.addAll(allowed); } } return features; } }