--- /dev/null
+/*******************************************************************************\r
+ * Copyright (c) 2016 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ * THTH ry - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.debug.browser.servlet;\r
+\r
+import java.io.IOException;\r
+import java.io.PrintWriter;\r
+import java.net.URI;\r
+import java.net.URISyntaxException;\r
+\r
+import javax.servlet.ServletException;\r
+import javax.servlet.http.HttpServlet;\r
+import javax.servlet.http.HttpServletRequest;\r
+import javax.servlet.http.HttpServletResponse;\r
+\r
+import org.simantics.Simantics;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.Session;\r
+import org.simantics.db.common.request.Queries;\r
+import org.simantics.db.common.request.ReadRequest;\r
+import org.simantics.db.common.request.UnaryRead;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.exception.ResourceNotFoundException;\r
+import org.simantics.db.service.ClusteringSupport;\r
+import org.simantics.db.service.SerialisationSupport;\r
+import org.simantics.debug.browser.content.ResourceBrowserContent;\r
+\r
+public class ResourceBrowserServlet extends HttpServlet {\r
+\r
+ private static final long serialVersionUID = -8253560202827865253L;\r
+\r
+ @Override\r
+ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {\r
+ response.setContentType("text/html; charset=utf-8");\r
+ response.setStatus(HttpServletResponse.SC_OK);\r
+\r
+ final PrintWriter writer = response.getWriter();\r
+ try {\r
+ Session session = Simantics.peekSession();\r
+ if (session == null) {\r
+ writer.write("<html><body>No database session.</body></html>");\r
+ return;\r
+ }\r
+\r
+ String requestedResource = request.getPathInfo();\r
+ if (requestedResource == null || requestedResource.equals("/")) {\r
+ long rootId = session.getRootLibrary().getResourceId();\r
+ //writer.write("<html><body>No resource requested. Try <a href=\"" + rootId + "\">database root</a>.</body></html>");\r
+ response.sendRedirect("" + rootId);\r
+ return;\r
+ }\r
+\r
+ // Skip '/' suffix\r
+ requestedResource = requestedResource.substring(1);\r
+ final long resource = parseLong(requestedResource);\r
+\r
+ if (resource != 0L) {\r
+ session.syncRequest(new ReadRequest() {\r
+ @Override\r
+ public void run(ReadGraph graph) throws DatabaseException {\r
+ ResourceBrowserContent content = graph.syncRequest(new GetContent(resource));\r
+ content.toHtml(graph, writer);\r
+ }\r
+ });\r
+ } else {\r
+ writer.write("<html><body>Resource not found: <em>");\r
+ writer.write(requestedResource);\r
+ writer.write("</em></body></html>");\r
+ }\r
+ } catch (Throwable e) {\r
+ writer.write("<html><body>Problem occurred while reading <em>");\r
+ writer.write(request.getPathInfo());\r
+ writer.write("</em>:<br/><pre>");\r
+ e.printStackTrace(writer);\r
+ writer.write("</pre></body></html>");\r
+ }\r
+ }\r
+ \r
+ @Override\r
+ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {\r
+ \r
+ Resource foundResource = null;\r
+ Session session = Simantics.getSession();\r
+ \r
+ String input = request.getParameter("resource-input");\r
+ if (input != null && !input.isEmpty()) {\r
+ // There's no harm in trimming out spaces from both ends of the input.\r
+ input = input.trim();\r
+ SerialisationSupport support = session.getService(SerialisationSupport.class);\r
+ if (input.startsWith("$")) {\r
+ try {\r
+ foundResource = support.getResource(Long.parseLong(input.substring(1)));\r
+ } catch (NumberFormatException e) {\r
+ // Let's silently fail here for now and navigate to project resource in the end\r
+ //e.printStackTrace();\r
+ } catch (Exception e) {\r
+ // Let's silently fail here for now and navigate to project resource in the end\r
+ //e.printStackTrace();\r
+ }\r
+ }\r
+ \r
+ if (foundResource == null) {\r
+ String[] parts = input.split("-");\r
+ if (parts.length == 1) {\r
+ try {\r
+ int resourceKey = Integer.parseInt(parts[0].trim());\r
+ foundResource = support.getResource(resourceKey);\r
+ // Some validation, not enough though\r
+ ClusteringSupport cs = session.getService(ClusteringSupport.class);\r
+ long cluster = cs.getCluster(foundResource);\r
+ if(cluster > 0) {\r
+ // changeLocation(r);\r
+ }\r
+ } catch (NumberFormatException e1) {\r
+ // Ignore, may happen for crap input\r
+ // e1.printStackTrace();\r
+ } catch (Exception e1) {\r
+ // Let's silently fail here for now and navigate to project resource in the end\r
+ //e1.printStackTrace();\r
+ }\r
+ } else if (parts.length == 2) {\r
+ try {\r
+ int resourceIndex = Integer.parseInt(parts[1]);\r
+ long clusterId = Long.parseLong(parts[0]);\r
+ ClusteringSupport cs = session.getService(ClusteringSupport.class);\r
+ foundResource = cs.getResourceByIndexAndCluster(resourceIndex, clusterId);\r
+ } catch (NumberFormatException e1) {\r
+ // Let's silently fail here for now and navigate to project resource in the end\r
+ //e1.printStackTrace();\r
+ } catch (Exception e1) {\r
+ // Let's silently fail here for now and navigate to project resource in the end\r
+ //e1.printStackTrace();\r
+ }\r
+ }\r
+ }\r
+ if (foundResource == null) {\r
+ // Try to see if the input data is an URI reference\r
+ try {\r
+ // First check that the input really is a proper URI.\r
+ String uri = input;\r
+ if (!input.equals("http:/") && input.endsWith("/"))\r
+ uri = input.substring(0, input.length() - 1);\r
+ new URI(uri);\r
+ foundResource = session.syncRequest( Queries.resource( uri ) );\r
+ } catch (URISyntaxException e) {\r
+ // Ignore, this is not a proper URI at all.\r
+ } catch (ResourceNotFoundException e1) {\r
+ // Ok, this was an URI, but no resource was found.\r
+ // Let's silently fail here for now and navigate to project resource in the end\r
+ //e1.printStackTrace();\r
+ } catch (DatabaseException e1) {\r
+ // Let's silently fail here for now and navigate to project resource in the end\r
+ //e1.printStackTrace();\r
+ }\r
+ }\r
+ }\r
+ \r
+ if (foundResource != null) {\r
+ response.sendRedirect("" + foundResource.getResourceId());\r
+ } else {\r
+ long rootId = session.getRootLibrary().getResourceId();\r
+ response.sendRedirect("" + rootId);\r
+ }\r
+ return;\r
+ }\r
+\r
+ private static long parseLong(String s) {\r
+ try {\r
+ return Long.parseLong(s);\r
+ } catch (NumberFormatException e) {\r
+ return 0;\r
+ }\r
+ }\r
+\r
+ static class GetContent extends UnaryRead<Long, ResourceBrowserContent> {\r
+ public GetContent(long parameter) {\r
+ super(parameter);\r
+ }\r
+\r
+ @Override\r
+ public ResourceBrowserContent perform(ReadGraph graph) throws DatabaseException {\r
+ Resource r = graph.getService(SerialisationSupport.class).getResource(parameter);\r
+ return ResourceBrowserContent.createContentFor(graph, r);\r
+ }\r
+ }\r
+\r
+}\r
Code Review / simantics / platform.git / blobdiff