1 files changed, 102 insertions, 0 deletions
diff --git a/dcaedt_validator/checker/src/main/java/org/onap/sdc/dcae/checker/Report.java b/dcaedt_validator/checker/src/main/java/org/onap/sdc/dcae/checker/Report.java
new file mode 100644
index 0000000..0f1b7c3
--- /dev/null
+++ b/dcaedt_validator/checker/src/main/java/org/onap/sdc/dcae/checker/Report.java
@@ -0,0 +1,102 @@
+package org.onap.sdc.dcae.checker;
+
+import java.io.IOException;
+
+import java.util.LinkedList;
+import java.util.Collections;
+
+import org.yaml.snakeyaml.error.MarkedYAMLException;
+import kwalify.ValidationException;
+
+import com.fasterxml.jackson.databind.annotation.JsonSerialize;
+import com.fasterxml.jackson.databind.SerializerProvider;
+import com.fasterxml.jackson.databind.ser.std.StdSerializer;
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.core.JsonProcessingException;
+
+/**
+ * Represents a collection of errors that occured during one of the stages
+ * of the checker: yaml parsing, yaml validation (tosca syntax), tosca checking
+ */
+/*
+ * This needs some re-thinking: while it is useful to have all original errors introducing
+ * the custom json conversion (just to help the service) is not great either.
+ * I was torn between this approach or creating a custom deserializer and object mapper (which
+ * would have kept all the customized serialization in the service but then the error analysis
+ * would be duplicated there too ..).  
+ */
+@JsonSerialize(contentUsing=org.onap.sdc.dcae.checker.Report.ReportEntrySerializer.class)
+public class Report<T extends Throwable> extends LinkedList<T> {
+
+	public Report() {
+	}
+
+	public Report(T[] theErrors) {
+		Collections.addAll(this, theErrors);
+	}
+
+	public boolean hasErrors() {
+		return !this.isEmpty();
+	}
+
+	public boolean addOnce(T theError) {
+		for (T e: this) {
+			if (e.getMessage().equals(theError.getMessage()))
+				return false;
+		}
+		return add(theError);
+	}
+
+	public String toString() {
+    StringBuilder sb = new StringBuilder(this.size() + " errors");
+    for (Throwable x: this) {
+      sb.append("\n")
+				.append("[")
+        .append(location(x))
+        .append("] ")
+				.append(x.getMessage());
+				if (x.getCause() != null) {
+					sb.append("\n\tCaused by:\n")
+          	.append(x.getCause());
+				}
+    }
+		sb.append("\n");
+		return sb.toString();
+	}
+
+	private static String location(Throwable theError) {
+		if (theError instanceof MarkedYAMLException) {
+			MarkedYAMLException mx = (MarkedYAMLException)theError;
+			return "line " + mx.getProblemMark().getLine() + ", column " + mx.getProblemMark().getColumn();
+		}
+		if (theError instanceof ValidationException) {
+      ValidationException vx = (ValidationException)theError;
+      return vx.getPath();
+    }
+		if (theError instanceof TargetError) {
+    	TargetError tx = (TargetError)theError;
+      return tx.getLocation();
+		}
+		return "unknown"; 
+	}
+
+
+	public static class ReportEntrySerializer extends StdSerializer<Throwable> {
+		
+		public ReportEntrySerializer() {
+			super(Throwable.class);
+		}
+
+    @Override
+    public void serialize(Throwable theError, JsonGenerator theGenerator, SerializerProvider theProvider) 
+																												      throws IOException, JsonProcessingException {
+      theGenerator.writeStartObject();
+      theGenerator.writeStringField("location", location(theError));
+      theGenerator.writeStringField("message", theError.getMessage());
+			if (theError.getCause() != null)
+      	theGenerator.writeStringField("cause", theError.getCause().toString());
+      theGenerator.writeEndObject();
+    }
+	}
+}
+