Mercurial > dive4elements > river
changeset 96:261a2ee7d9bb
Added a service that returns the collections of a specified user.
flys-client/trunk@1609 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
---|---|
date | Tue, 29 Mar 2011 13:49:04 +0000 |
parents | e2abb6b9dc7e |
children | 0bec0112c8b3 |
files | flys-client/ChangeLog flys-client/src/main/java/de/intevation/flys/client/client/services/UserCollectionsService.java flys-client/src/main/java/de/intevation/flys/client/client/services/UserCollectionsServiceAsync.java flys-client/src/main/java/de/intevation/flys/client/server/UserCollectionsServiceImpl.java |
diffstat | 4 files changed, 167 insertions(+), 0 deletions(-) [+] |
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--- a/flys-client/ChangeLog Tue Mar 29 13:44:53 2011 +0000 +++ b/flys-client/ChangeLog Tue Mar 29 13:49:04 2011 +0000 @@ -1,3 +1,13 @@ +2011-03-29 Ingo Weinzierl <ingo@intevation.de> + + * src/main/java/de/intevation/flys/client/server/UserCollectionsServiceImpl.java, + src/main/java/de/intevation/flys/client/client/services/UserCollectionsServiceAsync.java, + src/main/java/de/intevation/flys/client/client/services/UserCollectionsService.java: + New. This service returns a list of Collections owned by a specified + user. + + * src/main/webapp/WEB-INF/web.xml: Registered the UserCollectionsService. + 2011-03-29 Ingo Weinzierl <ingo@intevation.de> * src/main/java/de/intevation/flys/client/shared/model/DefaultCollection.java,
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/flys-client/src/main/java/de/intevation/flys/client/client/services/UserCollectionsService.java Tue Mar 29 13:49:04 2011 +0000 @@ -0,0 +1,27 @@ +package de.intevation.flys.client.client.services; + +import com.google.gwt.user.client.rpc.RemoteService; +import com.google.gwt.user.client.rpc.RemoteServiceRelativePath; + +import de.intevation.flys.client.shared.model.Collection; + + +/** + * This interface describes a method that retrieves a list of Collections owned + * by a specified user. + * + * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> + */ +@RemoteServiceRelativePath("user-collections") +public interface UserCollectionsService extends RemoteService { + + /** + * This method retrieves the user that is currently logged in. + * + * @param serverUrl The url of the artifact server. + * + * @return the current {@link User}. + */ + Collection[] getUserCollections(String serverUrl, String userid); +} +// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/flys-client/src/main/java/de/intevation/flys/client/client/services/UserCollectionsServiceAsync.java Tue Mar 29 13:49:04 2011 +0000 @@ -0,0 +1,21 @@ +package de.intevation.flys.client.client.services; + +import com.google.gwt.user.client.rpc.AsyncCallback; + +import de.intevation.flys.client.shared.model.Collection; + + +/** + * This interface describes a method that retrieves a list of Collections owned + * by a specified user. + * + * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> + */ +public interface UserCollectionsServiceAsync { + + void getUserCollections( + String serverUrl, + String userid, + AsyncCallback<Collection[]> callback); +} +// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/flys-client/src/main/java/de/intevation/flys/client/server/UserCollectionsServiceImpl.java Tue Mar 29 13:49:04 2011 +0000 @@ -0,0 +1,109 @@ +package de.intevation.flys.client.server; + +import java.util.ArrayList; +import java.util.Date; +import java.util.List; + +import javax.xml.xpath.XPathConstants; + +import org.w3c.dom.Document; +import org.w3c.dom.Node; +import org.w3c.dom.NodeList; + +import com.google.gwt.user.server.rpc.RemoteServiceServlet; + +import de.intevation.artifacts.common.ArtifactNamespaceContext; +import de.intevation.artifacts.common.utils.XMLUtils; + +import de.intevation.artifacts.httpclient.exceptions.ConnectionException; +import de.intevation.artifacts.httpclient.http.HttpClient; +import de.intevation.artifacts.httpclient.http.HttpClientImpl; + +import de.intevation.flys.client.shared.model.Collection; +import de.intevation.flys.client.shared.model.DefaultCollection; +import de.intevation.flys.client.client.services.UserCollectionsService; + + +/** + * This service returns a list of collections owned by a specified user. + * <b>NOTE:</b> The Collections returned by this service provide no information + * about the CollectionItems or OutputModes of the Collection. You need to fetch + * these information explicitly using another service. + * + * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> + */ +public class UserCollectionsServiceImpl +extends RemoteServiceServlet +implements UserCollectionsService +{ + public Collection[] getUserCollections(String serverUrl, String userid) { + System.out.println("UserCollectionsServiceImpl.getUserCollections"); + + HttpClient client = new HttpClientImpl(serverUrl); + + try { + Document result = client.listUserCollections(userid); + + NodeList list = (NodeList) XMLUtils.xpath( + result, + "/art:artifact-collections/art:artifact-collection", + XPathConstants.NODESET, + ArtifactNamespaceContext.INSTANCE); + + if (list == null || list.getLength() == 0) { + System.out.println("No collection found for user: " + userid); + return null; + } + + int num = list.getLength(); + + List<Collection> all = new ArrayList<Collection>(num); + + for (int i = 0; i < num; i++) { + Collection c = createCollection(list.item(i)); + + if (c != null) { + all.add(c); + } + } + + System.out.println("User has " + all.size() + " collections."); + + return (Collection[]) all.toArray(new Collection[all.size()]); + } + catch (ConnectionException ce) { + System.err.println(ce.getLocalizedMessage()); + } + + System.err.println("No user collections found."); + return null; + } + + + /** + * Extracts a SimpleCollection from <i>node</i>. + * + * @param node Contains information about a collection. + * + * @return a list of Simplecollections. + */ + protected Collection createCollection(Node node) { + String creationStr = XMLUtils.xpathString( + node, "@art:creation", ArtifactNamespaceContext.INSTANCE); + + String name = XMLUtils.xpathString( + node, "@art:name", ArtifactNamespaceContext.INSTANCE); + + String uuid = XMLUtils.xpathString( + node, "@art:uuid", ArtifactNamespaceContext.INSTANCE); + + if (uuid != null) { + long time = Long.parseLong(creationStr); + return new DefaultCollection(uuid, name, new Date(time)); + } + + System.err.println("Found an invalid Collection."); + return null; + } +} +// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :