From 63a46fc9becba3a002ac923b7932f574a1bfe809 Mon Sep 17 00:00:00 2001 From: Matej Perina Date: Thu, 20 Jul 2017 15:35:19 +0200 Subject: jvpp: provide more detailed exception logs (VPP-436) Error descriptions provided in api_errno.h are never used, only error tag/name and number make it to enum vnet_api_error_t so new macro is introduced in jvpp_common.c to extract message according to error number and passed to VppCallbackException constuctor. Change-Id: If2a687752807d7250d9226987583df00f151e87f Signed-off-by: Matej Perina Signed-off-by: Marek Gradzki --- src/vpp-api/java/jvpp-common/jvpp_common.c | 17 ++++++++++++++++- .../io/fd/vpp/jvpp/VppBaseCallException.java | 19 +++++++++++++++++++ .../io/fd/vpp/jvpp/VppCallbackException.java | 5 +++-- 3 files changed, 38 insertions(+), 3 deletions(-) (limited to 'src/vpp-api/java') diff --git a/src/vpp-api/java/jvpp-common/jvpp_common.c b/src/vpp-api/java/jvpp-common/jvpp_common.c index b88c0ea2197..c00298bfa81 100644 --- a/src/vpp-api/java/jvpp-common/jvpp_common.c +++ b/src/vpp-api/java/jvpp-common/jvpp_common.c @@ -14,6 +14,7 @@ */ #define _GNU_SOURCE /* for strcasestr(3) */ +#include #include "jvpp_common.h" #ifndef JVPP_DEBUG @@ -26,6 +27,16 @@ #define DEBUG_LOG(...) #endif +#define _(error,errorCode,msg) \ +if (errorCode == code) \ + message = msg; \ +else + +#define get_error_message(errno) \ +int code = errno; \ +foreach_vnet_api_error \ + message = "Reason unknown"; + /* shared jvpp main structure */ jvpp_main_t jvpp_main __attribute__((aligned (64))); @@ -40,7 +51,7 @@ void call_on_error(const char* callName, int contextId, int retval, return; } jmethodID excConstructor = (*env)->GetMethodID(env, callbackExceptionClass, - "", "(Ljava/lang/String;II)V"); + "", "(Ljava/lang/String;Ljava/lang/String;II)V"); if (!excConstructor) { DEBUG_LOG("CallOnError : excConstructor is null!\n"); return; @@ -52,8 +63,11 @@ void call_on_error(const char* callName, int contextId, int retval, return; } + char *message; + get_error_message(clib_net_to_host_u32(retval)); jobject excObject = (*env)->NewObject(env, callbackExceptionClass, excConstructor, (*env)->NewStringUTF(env, callName), + (*env)->NewStringUTF(env, message), clib_net_to_host_u32(contextId), clib_net_to_host_u32(retval)); if (!excObject) { DEBUG_LOG("CallOnError : excObject is null!\n"); @@ -63,6 +77,7 @@ void call_on_error(const char* callName, int contextId, int retval, (*env)->CallVoidMethod(env, callbackObject, callbackExcMethod, excObject); DEBUG_LOG("CallOnError : Response sent\n"); } +#undef _ u32 get_message_id(JNIEnv *env, const char *key) { uword *p = hash_get(jvpp_main.messages_hash, key); diff --git a/src/vpp-api/java/jvpp-registry/io/fd/vpp/jvpp/VppBaseCallException.java b/src/vpp-api/java/jvpp-registry/io/fd/vpp/jvpp/VppBaseCallException.java index d71e3055d1f..7fc1682ba73 100644 --- a/src/vpp-api/java/jvpp-registry/io/fd/vpp/jvpp/VppBaseCallException.java +++ b/src/vpp-api/java/jvpp-registry/io/fd/vpp/jvpp/VppBaseCallException.java @@ -16,6 +16,7 @@ package io.fd.vpp.jvpp; + /** * Base exception representing failed operation of JVpp request call */ @@ -40,6 +41,24 @@ public abstract class VppBaseCallException extends Exception { } } + /** + * Constructs an VppCallbackException with the specified api method name, error description and error code. + * + * @param methodName name of a method, which invocation or execution failed + * @param message description of error reason + * @param errorCode negative error code value associated with this failure + * @throws NullPointerException if apiMethodName is null + */ + public VppBaseCallException(final String methodName, final String message, final int errorCode) { + super(String.format("vppApi.%s failed: %s (error code: %d)", methodName,message, errorCode)); + this.methodName = java.util.Objects.requireNonNull(methodName, "apiMethodName is null!"); + this.errorCode = errorCode; + if(errorCode >= 0) { + throw new IllegalArgumentException("Error code must be < 0. Was " + errorCode + + " for " + methodName ); + } + } + /** * Returns name of a method, which invocation failed. * diff --git a/src/vpp-api/java/jvpp-registry/io/fd/vpp/jvpp/VppCallbackException.java b/src/vpp-api/java/jvpp-registry/io/fd/vpp/jvpp/VppCallbackException.java index ccfcbd3c100..adcc5d26268 100644 --- a/src/vpp-api/java/jvpp-registry/io/fd/vpp/jvpp/VppCallbackException.java +++ b/src/vpp-api/java/jvpp-registry/io/fd/vpp/jvpp/VppCallbackException.java @@ -26,12 +26,13 @@ public class VppCallbackException extends VppBaseCallException { * Constructs an VppCallbackException with the specified api method name and error code. * * @param methodName name of a method, which invocation failed. + * @param message description of error reason * @param ctxId api request context identifier * @param errorCode negative error code value associated with this failure * @throws NullPointerException if apiMethodName is null */ - public VppCallbackException(final String methodName, final int ctxId, final int errorCode ){ - super(methodName, errorCode); + public VppCallbackException(final String methodName, final String message, final int ctxId, final int errorCode ){ + super(methodName, message, errorCode); this.ctxId = ctxId; } -- cgit 1.2.3-korg