Integrate Sign.Verification and Improve Error Handling of Pipeline

- Ensure proper communication of errors between pipeline and mzs
  service by converting MoaZSExceptions into DeliveryRequestStatus
  messages.
- Revise MoaZSException: Add optional fields; those fields are a)
  helpful to construct meaningful error messages and b) optional
  because, depending on where an exception appears, either existent or
  non-existent and thus optional. Add inner-class Builder.
- Integrate Signature Verification into pipeline and add Stub for
  SignatureVerification.
- Move TNVZResponse's Mimetype check into dedicated class (Reason:
  separate abstration layers).
- Update api changes in testcases.

1 files changed, 116 insertions, 7 deletions

diff --git a/src/main/java/at/gv/egiz/moazs/MoaZSException.java b/src/main/java/at/gv/egiz/moazs/MoaZSException.java
index 11d9b4e..db04241 100644
--- a/src/main/java/at/gv/egiz/moazs/MoaZSException.java
+++ b/src/main/java/at/gv/egiz/moazs/MoaZSException.java
@@ -1,20 +1,129 @@
 package at.gv.egiz.moazs;
 
+import at.gv.zustellung.msg.xsd.DeliveryRequestStatusType;
+import at.gv.zustellung.msg.xsd.DeliveryRequestType;
+import at.gv.zustellung.tnvz.xsd.PersonResultType;
+import org.springframework.lang.Nullable;
+
 public class MoaZSException extends RuntimeException {
-    public MoaZSException(String s, Throwable throwable) {
-        super(s, throwable);
-    }
 
-    public MoaZSException(String s) {
-        super(s);
+    public static final String ERROR_MZS_MIMETYPE_MISSMATCH = "8001";
+    public static final String ERROR_MOASP_SIGNATURE_INVALID = "7001";
+
+    @Nullable
+    private final String errorCode;
+    @Nullable
+    private final PersonResultType tnvzResult;
+    @Nullable
+    private final DeliveryRequestStatusType msgResult;
+    @Nullable
+    private final DeliveryRequestType msgRequest;
+    @Nullable
+    private final at.gv.zustellung.app2mzs.xsd.DeliveryRequestType mzsRequest;
+
+    private MoaZSException(String message, Throwable cause, String errorCode, PersonResultType tnvzResult,
+                           DeliveryRequestStatusType msgResult, DeliveryRequestType msgRequest,
+                           at.gv.zustellung.app2mzs.xsd.DeliveryRequestType mzsRequest) {
+        super(message, cause);
+        this.errorCode = errorCode;
+        this.tnvzResult = tnvzResult;
+        this.msgResult = msgResult;
+        this.msgRequest = msgRequest;
+        this.mzsRequest = mzsRequest;
     }
 
     public static MoaZSException moaZSException(String formatString, Object... objects) {
-        return new MoaZSException(String.format(formatString, objects));
+        return moaZSExceptionBuilder(formatString, objects).build();
     }
 
     public static MoaZSException moaZSException(String message) {
-        return new MoaZSException(String.format(message));
+        return moaZSExceptionBuilder(message).build();
+    }
+
+    public static Builder moaZSExceptionBuilder(String formatString, Object... objects) {
+        return new Builder().withMessage(String.format(formatString, objects));
+    }
+
+    public static Builder moaZSExceptionBuilder(String message) {
+        return new Builder().withMessage(message);
+    }
+
+    @Nullable
+    public String getErrorCode() {
+        return errorCode;
+    }
+
+    @Nullable
+    public PersonResultType getTnvzResult() {
+        return tnvzResult;
+    }
+
+    @Nullable
+    public DeliveryRequestStatusType getMsgResult() {
+        return msgResult;
+    }
+
+    @Nullable
+    public at.gv.zustellung.app2mzs.xsd.DeliveryRequestType getMzsRequest() {
+        return mzsRequest;
+    }
+
+    @Nullable
+    public DeliveryRequestType getMsgRequest() {
+        return msgRequest;
+    }
+
+    public static class Builder extends Throwable {
+
+        private String message;
+        private Throwable cause;
+        private String errorCode;
+        private PersonResultType tnvzResult;
+        private DeliveryRequestStatusType msgResult;
+        private DeliveryRequestType msgRequest;
+        private at.gv.zustellung.app2mzs.xsd.DeliveryRequestType mzsRequest;
+
+        private Builder() {
+        }
+
+        public Builder withMessage(String message) {
+            this.message = message;
+            return this;
+        }
+
+        public Builder withCause(Throwable cause) {
+            this.cause = cause;
+            return this;
+        }
+
+        public Builder withErrorCode(String errorCode) {
+            this.errorCode = errorCode;
+            return this;
+        }
+
+        public Builder withTnvzResult(PersonResultType tnvzResult) {
+            this.tnvzResult = tnvzResult;
+            return this;
+        }
+
+        public Builder withMsgResult(DeliveryRequestStatusType msgResult) {
+            this.msgResult = msgResult;
+            return this;
+        }
+
+        public Builder withMsgRequest(DeliveryRequestType msgRequest) {
+            this.msgRequest = msgRequest;
+            return this;
+        }
+
+        public Builder withMzsRequest(at.gv.zustellung.app2mzs.xsd.DeliveryRequestType mzsRequest) {
+            this.mzsRequest = mzsRequest;
+            return this;
+        }
+
+        public MoaZSException build() {
+            return new MoaZSException(message, cause, errorCode, tnvzResult, msgResult, msgRequest, mzsRequest);
+        }
     }
 
 }