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From "Milinda Pathirage" <milinda.pathir...@gmail.com>
Subject Some Improvements to Code Generation Tool
Date Wed, 22 Nov 2006 13:11:01 GMT
When I use Axis2 Java Code Generation tool to generate server side code for
DataHandlerService.wsdl (see the attachment) with data binding *adb*, it
generates code that has Java Default Class name inside some C source and
header file which cause some compilation errors.

Example:


 struct axis2_echoContent_impl

{

axis2_echoContent_t echoContent;

axis2_qname_t* qname;

org.apache.axiom.om.OMElement attrib_arg_0_2;

};


 /**

* setter for arg_0_2

*/

axis2_status_t AXIS2_CALL

axis2_echoContent_set_arg_0_2(

axis2_echoContent_t* echoContent,

const axis2_env_t *env,

org.apache.axiom.om.OMElement param_arg_0_2);


 I figured out that this error occur, because there are language specific
DEFAULT_CLASS_NAME, DEFAULT_CLASS_ARRAY_NAME, DEFAULT_ATTRIB_CLASS_NAME and
DEFAULT_ATTRIB_ARRAY_CLASS_NAME final Strings are declared inside the
org.apache.axis2.schema.SchemaCompiler.


 To avoid this error I propose to remove these language specific things from
the SchemaCompiler and include them in the BeanWriter interface
implementations. Also we have to introduce new methods to the BeanWriter
interface to make sure that every implementation of BeanWriter interface
have these default things.


 Extra methods to BeanWriter interface:

public String getDefaultClassName();

public String getDefaultClassArrayName();

public String getDefaultAttribClassName();

public String getDefaultAttribArrayClassName();


 Example implementations inside implementations:


 *For C code generation (CStructWriter)*

public static final String DEFAULT_CLASS_NAME = "axiom_node_t*";

public static final String DEFAULT_CLASS_ARRAY_NAME = "axis2_array_list_t";


 public static final String DEFAULT_ATTRIB_CLASS_NAME =
"axiom_attribute_t*";

public static final String DEFAULT_ATTRIB_ARRAY_CLASS_NAME =
"axis2_array_list_t";

 public String getDefaultClassName() {

return DEFAULT_CLASS_NAME;

}


 public String getDefaultClassArrayName() {

return DEFAULT_CLASS_ARRAY_NAME;

}


 public String getDefaultAttribClassName() {

return DEFAULT_ATTRIB_CLASS_NAME;

}


 public String getDefaultAttribArrayClassName() {

return DEFAULT_ATTRIB_ARRAY_CLASS_NAME;

}


 And inside the SchemaCompiler we have to use writer.getDefaultClassName()
instead SchemaCompiler. DEFAULT_CLASS_NAME (same for others). Also inside
CstructWriter and JavaBeanWriter we have to replace SchemaCompiler.
DEFAULT_CLASS_NAME with getDefaultClassName().


 I tried these modifications and build successful with tests. Also the
generated C code is compiled without any compilation errors.

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