diff artifact-database/src/main/java/org/dive4elements/artifactdatabase/rest/ServiceResource.java @ 473:d0ac790a6c89 dive4elements-move

Moved directories to org.dive4elements
author Sascha L. Teichmann <teichmann@intevation.de>
date Thu, 25 Apr 2013 10:57:18 +0200
parents artifact-database/src/main/java/de/intevation/artifactdatabase/rest/ServiceResource.java@9798e4d83681
children 415df0fc4fa1
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifact-database/src/main/java/org/dive4elements/artifactdatabase/rest/ServiceResource.java	Thu Apr 25 10:57:18 2013 +0200
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2010 by Intevation GmbH
+ *
+ * This program is free software under the LGPL (>=v2.1)
+ * Read the file LGPL.txt coming with the software for details
+ * or visit http://www.gnu.org/licenses/ if it does not exist.
+ */
+
+package de.intevation.artifactdatabase.rest;
+
+import de.intevation.artifacts.ArtifactDatabase;
+import de.intevation.artifacts.ArtifactDatabaseException;
+
+import java.io.IOException;
+
+import org.apache.log4j.Logger;
+
+import org.restlet.Request;
+import org.restlet.Response;
+import org.restlet.data.MediaType;
+import org.restlet.data.Status;
+
+import org.restlet.ext.xml.DomRepresentation;
+
+import org.restlet.representation.EmptyRepresentation;
+import org.restlet.representation.Representation;
+
+import org.w3c.dom.Document;
+
+import de.intevation.artifacts.Service;
+
+/**
+ * Resource to process incoming XML documents with a given service.
+ *
+ * @author <a href="mailto:sascha.teichmann@intevation">Sascha L. Teichmann</a>
+ */
+public class ServiceResource
+extends      BaseResource
+{
+    private static Logger logger = Logger.getLogger(ServiceResource.class);
+
+    /**
+     * server URL where to reach the resource.
+     */
+    public static final String PATH = "/service/{service}";
+
+    /**
+     * Error message if no corresponing service is provided by
+     * the artifact database.
+     */
+    public static final String NO_SUCH_ACTION_MESSAGE = "no such service";
+
+    @Override
+    protected Representation innerPost(Representation requestRepr) {
+
+        Document inputDocument = null;
+        try {
+            DomRepresentation input = new DomRepresentation(requestRepr);
+            input.setNamespaceAware(true);
+            inputDocument = input.getDocument();
+        }
+        catch (IOException ioe) {
+            logger.error(ioe.getMessage());
+            Response response = getResponse();
+            response.setStatus(Status.CLIENT_ERROR_BAD_REQUEST, ioe);
+            return new EmptyRepresentation();
+        }
+
+        Request request = getRequest();
+
+        String service = (String)request.getAttributes().get("service");
+
+        ArtifactDatabase db = (ArtifactDatabase)getContext()
+            .getAttributes().get("database");
+
+        try {
+            return guessRepresentation(
+                db.process(service, inputDocument, getCallMeta()));
+        }
+        catch (ArtifactDatabaseException adbe) {
+            logger.warn(adbe.getLocalizedMessage(), adbe);
+            Response response = getResponse();
+            response.setStatus(
+                Status.CLIENT_ERROR_BAD_REQUEST, adbe.getMessage());
+            return new EmptyRepresentation();
+        }
+    }
+
+    protected static Representation guessRepresentation(Service.Output output) {
+
+        MediaType mediaType = new MediaType(output.getMIMEType());
+        Object    data      = output.getData();
+
+        if (data instanceof Document) {
+            return new DomRepresentation(mediaType, (Document)data);
+        }
+
+        if (data instanceof byte []) {
+            return new ByteArrayRepresentation(mediaType, (byte [])data);
+        }
+
+        return new EmptyRepresentation();
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :

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