ingo@69: package de.intevation.flys.client.server; ingo@69: ingo@69: import java.util.ArrayList; ingo@69: import java.util.List; ingo@69: ingo@69: import javax.xml.xpath.XPathConstants; ingo@69: ingo@69: import org.w3c.dom.Document; ingo@69: import org.w3c.dom.Node; ingo@69: import org.w3c.dom.NodeList; ingo@69: ingo@69: import com.google.gwt.user.server.rpc.RemoteServiceServlet; ingo@69: ingo@69: import de.intevation.artifacts.common.ArtifactNamespaceContext; ingo@69: import de.intevation.artifacts.common.utils.ClientProtocolUtils; ingo@69: import de.intevation.artifacts.common.utils.XMLUtils; ingo@69: ingo@69: import de.intevation.artifacts.httpclient.exceptions.ConnectionException; ingo@69: import de.intevation.artifacts.httpclient.http.HttpClient; ingo@69: import de.intevation.artifacts.httpclient.http.HttpClientImpl; ingo@69: import de.intevation.artifacts.httpclient.http.response.DocumentResponseHandler; ingo@69: ingo@69: import de.intevation.flys.client.shared.model.Artifact; ingo@69: import de.intevation.flys.client.shared.model.Collection; ingo@69: import de.intevation.flys.client.shared.model.CollectionItem; ingo@69: import de.intevation.flys.client.shared.model.DefaultCollection; ingo@69: import de.intevation.flys.client.shared.model.DefaultCollectionItem; ingo@69: import de.intevation.flys.client.shared.model.DefaultOutputMode; ingo@69: import de.intevation.flys.client.shared.model.OutputMode; ingo@69: import de.intevation.flys.client.client.services.AddArtifactService; ingo@69: ingo@69: ingo@69: /** ingo@69: * @author Ingo Weinzierl ingo@69: */ ingo@69: public class AddArtifactServiceImpl ingo@69: extends RemoteServiceServlet ingo@69: implements AddArtifactService ingo@69: { ingo@69: public Collection add(Collection collection, Artifact artifact, String url) { ingo@69: System.out.println("AddArtifactServiceImpl - add()"); ingo@69: ingo@69: Document add = ClientProtocolUtils.newAddArtifactDocument( ingo@69: artifact.getUuid(), null); ingo@69: ingo@69: HttpClient client = new HttpClientImpl(url); ingo@69: ingo@69: try { ingo@69: Document response = (Document) client.doCollectionAction( ingo@69: add, collection.identifier(), new DocumentResponseHandler()); ingo@69: ingo@69: Collection c = parseCollection(response); ingo@69: ingo@69: if (c == null) { ingo@69: throw new NullPointerException("No collection returned."); ingo@69: } ingo@69: ingo@69: return c; ingo@69: } ingo@69: catch (ConnectionException ce) { ingo@69: System.err.println(ce.getLocalizedMessage()); ingo@69: } ingo@69: ingo@69: return null; ingo@69: } ingo@69: ingo@69: ingo@69: /** ingo@69: * This method takes the DESCRIBE document of the Collections describe() ingo@69: * operation and extracts the information about the collection itself and ingo@69: * the collection items. ingo@69: * ingo@69: * @param description The DESCRIBE document of the Collections describe() ingo@69: * operation. ingo@69: * ingo@69: * @return a Collection with CollectionItems. ingo@69: */ ingo@69: protected Collection parseCollection(Document description) { ingo@69: System.out.println("AddArtifactServiceImpl.parseCollection"); ingo@69: ingo@69: if (description == null) { ingo@69: System.err.println("The DESCRIBE of the Collection is null!"); ingo@69: return null; ingo@69: } ingo@69: ingo@69: String uuid = XMLUtils.xpathString( ingo@69: description, ingo@69: "art:artifact-collection/@art:uuid", ingo@69: ArtifactNamespaceContext.INSTANCE); ingo@69: ingo@69: if (uuid == null || uuid.equals("")) { ingo@69: System.err.println("Found an invalid Collection!"); ingo@69: return null; ingo@69: } ingo@69: ingo@69: Collection c = new DefaultCollection(uuid); ingo@69: ingo@69: NodeList items = (NodeList) XMLUtils.xpath( ingo@69: description, ingo@69: "art:artifact-collection/art:artifacts/art:artifact", ingo@69: XPathConstants.NODESET, ingo@69: ArtifactNamespaceContext.INSTANCE); ingo@69: ingo@69: if (items == null || items.getLength() == 0) { ingo@69: System.out.println("No collection item found for this collection."); ingo@69: ingo@69: return c; ingo@69: } ingo@69: ingo@69: int size = items.getLength(); ingo@69: ingo@69: for (int i = 0; i < size; i++) { ingo@69: CollectionItem item = parseCollectionItem(items.item(i)); ingo@69: ingo@69: if (item != null) { ingo@69: c.addItem(item); ingo@69: } ingo@69: } ingo@69: ingo@69: System.out.println( ingo@69: "Found " + c.getItemLength() + " collection items " + ingo@69: "for the Collection '" + c.identifier() + "'."); ingo@69: ingo@69: return c; ingo@69: } ingo@69: ingo@69: ingo@69: /** ingo@69: * This method extracts the CollectionItem from node with its output ingo@69: * modes. The output modes are parsed using the parseOutputModes() method. ingo@69: * ingo@69: * @param node A node that contains information about a CollectionItem. ingo@69: * ingo@69: * @return a CollectionItem. ingo@69: */ ingo@69: protected CollectionItem parseCollectionItem(Node node) { ingo@69: System.out.println("AddArtifactServiceImpl.parseCollectionItem"); ingo@69: ingo@69: if (node == null) { ingo@69: System.err.println("The node for parsing CollectionItem is null!"); ingo@69: return null; ingo@69: } ingo@69: ingo@69: String uuid = XMLUtils.xpathString( ingo@69: node, "@art:uuid", ArtifactNamespaceContext.INSTANCE); ingo@69: ingo@69: if (uuid == null || uuid.equals("")) { ingo@69: System.err.println("Found an invalid CollectionItem!"); ingo@69: } ingo@69: ingo@69: Node outputmodes = (Node) XMLUtils.xpath( ingo@69: node, ingo@69: "art:outputmodes", ingo@69: XPathConstants.NODE, ingo@69: ArtifactNamespaceContext.INSTANCE); ingo@69: ingo@69: List modes = parseOutputModes(outputmodes); ingo@69: ingo@69: return new DefaultCollectionItem(uuid, modes); ingo@69: } ingo@69: ingo@69: ingo@69: /** ingo@69: * This method extracts the OutputModes available for a specific ingo@69: * CollectionItem and returns them as list. ingo@69: * ingo@69: * @param node The root node of the outputmodes list. ingo@69: * ingo@69: * @return a list of OutputModes. ingo@69: */ ingo@69: protected List parseOutputModes(Node node) { ingo@69: System.out.println("AddArtifactServiceImpl.parseOutputModes"); ingo@69: ingo@69: if (node == null) { ingo@69: System.err.println("The node for parsing OutputModes is null!"); ingo@69: return null; ingo@69: } ingo@69: ingo@69: NodeList list = (NodeList) XMLUtils.xpath( ingo@69: node, ingo@69: "art:output", ingo@69: XPathConstants.NODESET, ingo@69: ArtifactNamespaceContext.INSTANCE); ingo@69: ingo@69: if (list == null || list.getLength() == 0) { ingo@69: System.err.println("No outputmode nodes found!"); ingo@69: return null; ingo@69: } ingo@69: ingo@69: int size = list.getLength(); ingo@69: ingo@69: List modes = new ArrayList(size); ingo@69: ingo@69: for (int i = 0; i < size; i++) { ingo@69: Node tmp = list.item(i); ingo@69: String name = XMLUtils.xpathString( ingo@69: tmp, "@art:name", ArtifactNamespaceContext.INSTANCE); ingo@69: String desc = XMLUtils.xpathString( ingo@69: tmp, "@art:description", ArtifactNamespaceContext.INSTANCE); ingo@69: String mime = XMLUtils.xpathString( ingo@69: tmp, "@art:mime-type", ArtifactNamespaceContext.INSTANCE); ingo@69: ingo@69: if (name == null || name.equals("")) { ingo@69: System.err.println("Found an invalid output mode."); ingo@69: ingo@69: continue; ingo@69: } ingo@69: ingo@69: // TODO Parse Facets ingo@69: ingo@69: modes.add(new DefaultOutputMode(name, desc, mime)); ingo@69: } ingo@69: ingo@69: return modes; ingo@69: } ingo@69: } ingo@69: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :