[configuration] Added @PrintConfiguration to print the combined interpreted configuration for a certain java file, improved problem reporting

1 files changed, 63 insertions, 0 deletions

diff --git a/src/core/lombok/eclipse/handlers/HandlePrintConfiguration.java b/src/core/lombok/eclipse/handlers/HandlePrintConfiguration.java
new file mode 100644
index 00000000..e2bae525
--- /dev/null
+++ b/src/core/lombok/eclipse/handlers/HandlePrintConfiguration.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2014 The Project Lombok Authors.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package lombok.eclipse.handlers;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.PrintStream;
+
+import lombok.Lombok;
+import lombok.core.AnnotationValues;
+import lombok.core.LombokConfiguration;
+import lombok.core.PrintConfiguration;
+import lombok.eclipse.EclipseAnnotationHandler;
+import lombok.eclipse.EclipseNode;
+
+import org.eclipse.jdt.internal.compiler.ast.Annotation;
+import org.mangosdk.spi.ProviderFor;
+
+/**
+ * Handles the {@code lombok.core.PrintConfiguration} annotation for eclipse.
+ */
+@ProviderFor(EclipseAnnotationHandler.class)
+public class HandlePrintConfiguration extends EclipseAnnotationHandler<PrintConfiguration> {
+	public void handle(AnnotationValues<PrintConfiguration> annotation, Annotation ast, EclipseNode annotationNode) {
+		PrintStream stream = System.out;
+		String fileName = annotation.getInstance().outfile();
+		if (fileName.length() > 0) try {
+			stream = new PrintStream(new File(fileName));
+		} catch (FileNotFoundException e) {
+			Lombok.sneakyThrow(e);
+		}
+		try {
+			LombokConfiguration.writeConfiguration(annotationNode.getAst(), stream);
+		} finally {
+			if (stream != System.out) {
+				try {
+					stream.close();
+				} catch (Exception e) {
+					Lombok.sneakyThrow(e);
+				}
+			}
+		}
+	}
+}