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package org.mule.module.ibeans.spi; |
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import org.mule.api.MuleContext; |
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import org.mule.api.MuleMessage; |
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import org.mule.api.transformer.DataType; |
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import org.mule.api.transformer.Transformer; |
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import org.mule.module.ibeans.spi.support.DataTypeConverter; |
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import org.mule.routing.filters.ExpressionFilter; |
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import org.mule.transformer.types.DataTypeFactory; |
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import org.mule.transport.NullPayload; |
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import java.lang.reflect.Method; |
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import org.ibeans.annotation.Return; |
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import org.ibeans.api.AbstractCallInterceptor; |
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import org.ibeans.api.InvocationContext; |
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import org.ibeans.api.Response; |
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import org.ibeans.spi.ExpressionParser; |
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public class MuleResponseTransformInterceptor extends AbstractCallInterceptor |
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{ |
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private MuleContext muleContext; |
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private ExpressionParser parser; |
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public MuleResponseTransformInterceptor(MuleContext muleContext, ExpressionParser parser) |
36 | 0 | { |
37 | 0 | this.muleContext = muleContext; |
38 | 0 | this.parser = parser; |
39 | 0 | } |
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@Override |
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public void afterCall(InvocationContext invocationContext) throws Throwable |
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{ |
44 | 0 | MuleResponseMessage result = (MuleResponseMessage)invocationContext.getResponse(); |
45 | 0 | if (result == null || result.getPayload() == null || invocationContext.getMethod().getReturnType().equals(Void.TYPE)) |
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{ |
47 | 0 | return; |
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} |
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Object finalResult; |
51 | 0 | Method method = invocationContext.getMethod(); |
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|
53 | 0 | if(method.getName().startsWith("ibean")) |
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{ |
55 | 0 | invocationContext.setResult(result.getPayload()); |
56 | 0 | return; |
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} |
58 | 0 | DataType requiredType = DataTypeConverter.convertIBeansToMule(invocationContext.getReturnType()); |
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|
60 | 0 | if (method.getAnnotation(Return.class) != null) |
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{ |
62 | 0 | String returnExpression = method.getAnnotation(Return.class).value(); |
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64 | 0 | finalResult = handleReturnAnnotation(returnExpression, result, invocationContext); |
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66 | 0 | DataType finalType = DataTypeFactory.createFromObject(finalResult); |
67 | 0 | if (!requiredType.isCompatibleWith(finalType)) |
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{ |
69 | 0 | Transformer transformer = muleContext.getRegistry().lookupTransformer( finalType, requiredType); |
70 | 0 | finalResult = transformer.transform(finalResult); |
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} |
72 | 0 | } |
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else |
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{ |
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|
76 | 0 | if (requiredType.getType().equals(MuleMessage.class)) |
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{ |
78 | 0 | finalResult = result.getMessage(); |
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} |
80 | 0 | else if (requiredType.getType().equals(Response.class)) |
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{ |
82 | 0 | finalResult = result; |
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} |
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else |
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{ |
86 | 0 | DataType sourceType = DataTypeFactory.createFromObject(result.getMessage()); |
87 | 0 | if(requiredType.isCompatibleWith(sourceType)) |
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{ |
89 | 0 | finalResult = result.getPayload(); |
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} |
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else |
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{ |
93 | 0 | Transformer transformer = muleContext.getRegistry().lookupTransformer(sourceType, requiredType); |
94 | 0 | finalResult = transformer.transform(result.getPayload()); |
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} |
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} |
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} |
100 | 0 | if(finalResult instanceof NullPayload) |
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{ |
102 | 0 | finalResult = null; |
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} |
104 | 0 | invocationContext.setResult(finalResult); |
105 | 0 | } |
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protected Object handleReturnAnnotation(String expr, Response message, InvocationContext ctx) |
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{ |
109 | 0 | if (parser.hasUriTokens(expr)) |
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{ |
111 | 0 | expr = parser.parseUriTokens(ctx.getIBeanConfig().getUriParams(), expr); |
112 | 0 | expr = parser.parseUriTokens(ctx.getIBeanConfig().getHeaderParams(), expr); |
113 | 0 | expr = parser.parseUriTokens(ctx.getIBeanConfig().getPropertyParams(), expr); |
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} |
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|
116 | 0 | if(ctx.getMethod().getReturnType().equals(Boolean.class)) |
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{ |
118 | 0 | return new ExpressionFilter(expr).accept(((MuleResponseMessage)message).getMessage()); |
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} |
120 | 0 | return parser.evaluate(expr, message); |
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} |
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} |