Ftr: catch exceptions that user defined #208
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,88 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. | ||
| * The ASF licenses this file to You under the Apache License, Version 2.0 | ||
| * (the "License"); you may not use this file except in compliance with | ||
| * the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
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| package hessian | ||
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| import ( | ||
| "fmt" | ||
| "sync" | ||
| ) | ||
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| import ( | ||
| "github.com/apache/dubbo-go-hessian2/java_exception" | ||
| ) | ||
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| var mutex sync.Mutex | ||
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| func checkAndGetException(cls classInfo) (structInfo, bool) { | ||
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| if len(cls.fieldNameList) < 4 { | ||
| return structInfo{}, false | ||
| } | ||
| var ( | ||
| throwable structInfo | ||
| ok bool | ||
| ) | ||
| var count = 0 | ||
| for _, item := range cls.fieldNameList { | ||
| if item == "detailMessage" || item == "suppressedExceptions" || item == "stackTrace" || item == "cause" { | ||
| count++ | ||
| } | ||
| } | ||
| // if have these 4 fields, it is throwable struct | ||
| if count == 4 { | ||
| mutex.Lock() | ||
| defer mutex.Unlock() | ||
| if throwable, ok = getStructInfo(cls.javaName); ok { | ||
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|
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| return throwable, true | ||
| } | ||
| RegisterPOJO(newBizException(cls.javaName)) | ||
| if throwable, ok = getStructInfo(cls.javaName); ok { | ||
| return throwable, true | ||
| } | ||
| } | ||
| return throwable, count == 4 | ||
| } | ||
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| type UnknownException struct { | ||
| SerialVersionUID int64 | ||
| DetailMessage string | ||
| SuppressedExceptions []java_exception.Throwabler | ||
| StackTrace []java_exception.StackTraceElement | ||
| Cause java_exception.Throwabler | ||
| name string | ||
| } | ||
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| // NewThrowable is the constructor | ||
| func newBizException(name string) *UnknownException { | ||
| return &UnknownException{name: name, StackTrace: []java_exception.StackTraceElement{}} | ||
| } | ||
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| // Error output error message | ||
| func (e UnknownException) Error() string { | ||
| return fmt.Sprintf("throw %v : %v", e.name, e.DetailMessage) | ||
| } | ||
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| //JavaClassName java fully qualified path | ||
| func (e UnknownException) JavaClassName() string { | ||
| return e.name | ||
| } | ||
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| // equals to getStackTrace in java | ||
| func (e UnknownException) GetStackTrace() []java_exception.StackTraceElement { | ||
| return e.StackTrace | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. | ||
| * The ASF licenses this file to You under the Apache License, Version 2.0 | ||
| * (the "License"); you may not use this file except in compliance with | ||
| * the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
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| package hessian | ||
|
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| import ( | ||
| "testing" | ||
| ) | ||
| import ( | ||
| "github.com/stretchr/testify/assert" | ||
| ) | ||
|
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| func TestCheckAndGetException(t *testing.T) { | ||
| clazzInfo1 := classInfo{ | ||
| javaName: "com.test.UserDefinedException", | ||
| fieldNameList: []string{"detailMessage", "code", "suppressedExceptions", "stackTrace", "cause"}, | ||
| } | ||
| s, b := checkAndGetException(clazzInfo1) | ||
| assert.True(t, b) | ||
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| assert.Equal(t, s.javaName, "com.test.UserDefinedException") | ||
| assert.Equal(t, s.goName, "hessian.UnknownException") | ||
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| clazzInfo2 := classInfo{ | ||
| javaName: "com.test.UserDefinedException", | ||
| fieldNameList: []string{"detailMessage", "code", "suppressedExceptions", "cause"}, | ||
| } | ||
| s, b = checkAndGetException(clazzInfo2) | ||
| assert.False(t, b) | ||
| assert.Equal(t, s, structInfo{}) | ||
| } |
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I think should make this variable name more meaningful, like
getExceptionMutex,checkExceptionMutexetc?