Add an SCL interface for loading tech type files

[simantics/district.git] / org.simantics.district.network / src / org / simantics / district / network / techtype / TechTypeUtils.java

diff --git a/org.simantics.district.network/src/org/simantics/district/network/techtype/TechTypeUtils.java b/org.simantics.district.network/src/org/simantics/district/network/techtype/TechTypeUtils.java
index 66280d12cdd90624a796caef25bb62177f5d5865..92eef4fe7f3462ab9afc25a1dd5d43e4808ff3de 100644 (file)
--- a/org.simantics.district.network/src/org/simantics/district/network/techtype/TechTypeUtils.java
+++ b/org.simantics.district.network/src/org/simantics/district/network/techtype/TechTypeUtils.java
@@ -1,9 +1,14 @@
 package org.simantics.district.network.techtype;
 
+import java.io.IOException;
+import java.nio.charset.Charset;
+import java.nio.file.Files;
+import java.nio.file.Paths;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Objects;
+import java.util.stream.Collectors;
 
 import org.simantics.Simantics;
 import org.simantics.databoard.Bindings;
@@ -30,6 +35,7 @@ import org.simantics.district.network.techtype.requests.PossibleTechTypeItem;
 import org.simantics.district.network.techtype.requests.PossibleTechTypeTable;
 import org.simantics.district.network.techtype.requests.TechTypeTableData;
 import org.simantics.district.network.techtype.requests.TechTypeTableKeyName;
+import org.simantics.district.network.techtype.requests.WriteTechTypeTable;
 import org.simantics.layer0.Layer0;
 import org.simantics.scl.runtime.SCLContext;
 import org.simantics.structural.stubs.StructuralResource2;
@@ -42,6 +48,31 @@ public class TechTypeUtils {
 
        public static String DEFAULT_KEY_NAME = "pipeCode";
 
+       /**
+        * Load a tech type table from a CSV file and write it in the active model.
+        * 
+        * @param componentType  The component type that the tech type table is associated with
+        * @param filePath  A path to a CSV file
+        * @throws DatabaseException
+        * @throws IOException
+        */
+       public static void loadTechTypeTable(Resource componentType, String filePath) throws DatabaseException, IOException {
+               String data;
+               try {
+                       data = Files.lines(Paths.get(filePath), Charset.defaultCharset()).collect(Collectors.joining("\n"));
+               } catch (IOException e) {
+                       LOGGER.error("Failed to read contents of file '{}' as {}", filePath, Charset.defaultCharset(), e);
+                       return;
+               }
+
+               Simantics.getSession().syncRequest(new WriteRequest() {
+                       @Override
+                       public void perform(WriteGraph graph) throws DatabaseException {
+                               graph.syncRequest(new WriteTechTypeTable(componentType, data));
+                       }
+               });
+       }
+       
        /**
         * Execute a cached query for a possible tech type table item in a table with a given item key.
         * 
@@ -100,7 +131,7 @@ public class TechTypeUtils {
        }
        
        /**
-        * Reset all components that address the given tech type table to the table values.
+        * Reset all diagram elements to tech type table values.
         * 
         * @param table  A tech type table
         * @throws DatabaseException