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Improved TextToMethodSignature converter.

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This commit is contained in:
Erwin Vervaet
2007-03-28 14:04:01 +00:00
parent b752d2dbd8
commit cfa0b10806
3 changed files with 112 additions and 8 deletions
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2
spring-binding/src/main/java/org/springframework/binding/method/Parameter.java
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@@ -61,7 +61,7 @@ public class Parameter {
}
/**
* Returns the method name.
* Returns the parameter name.
*/
public Expression getName() {
return name;

21
spring-binding/src/main/java/org/springframework/binding/method/TextToMethodSignature.java
View File

@@ -19,6 +19,7 @@ import org.springframework.binding.convert.ConversionContext;
import org.springframework.binding.convert.ConversionException;
import org.springframework.binding.convert.ConversionService;
import org.springframework.binding.convert.support.ConversionServiceAwareConverter;
import org.springframework.binding.expression.Expression;
import org.springframework.util.StringUtils;
/**
@@ -33,13 +34,15 @@ import org.springframework.util.StringUtils;
* the method to invoke, where the method is expected to have parameters
* delimited by a comma. In this example, the method has two parameters. The
* type is either the fully-qualified class of the argument OR a known type
* alias. The name is the logical name of the argument, which is used during
* data binding to retrieve the argument value. </li>
* alias OR left out althogether. The name is the logical name of the argument,
* which is used during data binding to retrieve the argument value
* (typically an expression). </li>
* </ul>
*
* @see MethodSignature
*
* @author Keith Donald
* @author Erwin Vervaet
*/
public class TextToMethodSignature extends ConversionServiceAwareConverter {
@@ -83,14 +86,18 @@ public class TextToMethodSignature extends ConversionServiceAwareConverter {
String[] paramArray = StringUtils.commaDelimitedListToStringArray(delimParamList);
Parameters params = new Parameters(paramArray.length);
for (int i = 0; i < paramArray.length; i++) {
// param could be of the form "type name", "name", "type ${name}" or "${name}"
String param = paramArray[i].trim();
String[] typeAndName = StringUtils.split(param, " ");
if (typeAndName != null && typeAndName.length == 2) {
Class type = (Class)converterFor(String.class, Class.class).execute(typeAndName[0]);
params.add(new Parameter(type, parseExpression(typeAndName[1].trim())));
int space = param.indexOf(' ');
if (space == -1 || space > param.indexOf('$')) {
// "name" or "${name}"
params.add(new Parameter(null, parseExpression(param)));
}
else {
params.add(new Parameter(null, parseExpression(param)));
// "type name" or "type ${name}"
Class type = (Class)fromStringTo(Class.class).execute(param.substring(0, space).trim());
Expression name = parseExpression(param.substring(space + 1).trim());
params.add(new Parameter(type, name));
}
}
return new MethodSignature(methodName, params);