Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.scl.runtime / src / org / simantics / scl / runtime / reporting / SCLReporting.java

diff --git a/bundles/org.simantics.scl.runtime/src/org/simantics/scl/runtime/reporting/SCLReporting.java b/bundles/org.simantics.scl.runtime/src/org/simantics/scl/runtime/reporting/SCLReporting.java
new file mode 100644 (file)
index 0000000..8870eb9
--- /dev/null
+++ b/bundles/org.simantics.scl.runtime/src/org/simantics/scl/runtime/reporting/SCLReporting.java
@@ -0,0 +1,112 @@
+package org.simantics.scl.runtime.reporting;
+
+import java.io.FileWriter;
+import java.io.IOException;
+
+import org.simantics.scl.runtime.SCLContext;
+import org.simantics.scl.runtime.function.Function;
+import org.simantics.scl.runtime.tuple.Tuple0;
+
+/**
+ * Static methods for calling the currently active {@link SCLReportingHandler}.
+ * 
+ * @author Hannu Niemistö
+ */
+public class SCLReporting {
+
+    public static void print(String text) {
+        SCLReportingHandler handler = ((SCLReportingHandler)SCLContext.getCurrent().get(SCLReportingHandler.REPORTING_HANDLER));
+        if(handler != null)
+            handler.print(text);
+        else
+            System.out.println(text);
+    }
+    
+    public static void printError(String text) {
+        SCLReportingHandler handler = ((SCLReportingHandler)SCLContext.getCurrent().get(SCLReportingHandler.REPORTING_HANDLER));
+        if(handler != null)
+            handler.printError(text);
+        else
+            System.err.println(text);
+    }
+    
+    public static void didWork(double amount) {
+        SCLReportingHandler handler = ((SCLReportingHandler)SCLContext.getCurrent().get(SCLReportingHandler.REPORTING_HANDLER));
+        if(handler != null)
+            handler.didWork(amount);
+    }
+    
+    private static class FileReportingHandler extends DelegatingSCLReportingHandler {
+        FileWriter writer;
+        
+        public FileReportingHandler(SCLReportingHandler baseHandler, FileWriter writer) {
+            super(baseHandler);
+            this.writer = writer;
+        }
+
+        @Override
+        public void print(String text) {
+            try {
+                writer.append(text);
+                writer.append('\n');
+            } catch(IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    public static Object printingToFile(String fileName, Function proc) throws IOException {
+        FileWriter writer = new FileWriter(fileName);
+        SCLContext context = SCLContext.getCurrent();
+        Object oldHandler = context.get(SCLReportingHandler.REPORTING_HANDLER);
+        context.put(SCLReportingHandler.REPORTING_HANDLER,
+                new FileReportingHandler(
+                        oldHandler == null ? SCLReportingHandler.DEFAULT : (SCLReportingHandler)oldHandler,
+                        writer));
+        try {
+            return proc.apply(Tuple0.INSTANCE);
+        } finally {
+            context.put(SCLReportingHandler.REPORTING_HANDLER, oldHandler);
+            writer.close();
+        }
+    }
+    
+    public static Object printErrorsAsNormalPrints(Function proc) {
+        SCLContext context = SCLContext.getCurrent();
+        SCLReportingHandler handler = (SCLReportingHandler)context.get(SCLReportingHandler.REPORTING_HANDLER);
+        if(handler == null)
+            handler = SCLReportingHandler.DEFAULT;
+        
+        context.put(SCLReportingHandler.REPORTING_HANDLER, new DelegatingSCLReportingHandler(handler) {
+            @Override
+            public void printError(String error) {
+                print(error);
+            }
+        });
+        
+        try {
+            return proc.apply(Tuple0.INSTANCE);
+        } finally {
+            context.put(SCLReportingHandler.REPORTING_HANDLER, handler);
+        }
+    }
+    
+    public static Object disablePrintingForCommand(Function proc) {
+        SCLContext context = SCLContext.getCurrent();
+        SCLReportingHandler handler = (SCLReportingHandler)context.get(SCLReportingHandler.REPORTING_HANDLER);
+        if(handler == null)
+            handler = SCLReportingHandler.DEFAULT;
+        
+        context.put(SCLReportingHandler.REPORTING_HANDLER, new DelegatingSCLReportingHandler(handler) {
+            @Override
+            public void print(String text) {
+            }
+        });
+        
+        try {
+            return proc.apply(Tuple0.INSTANCE);
+        } finally {
+            context.put(SCLReportingHandler.REPORTING_HANDLER, handler);
+        }
+    }
+}