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我正在嘗試在請求 - 響應調用與QPID端點之間的駝峯交換中保存一個值。Apache Camel - 無法在請求 - 響應之間傳播JMS標頭屬性
您可以從我的代碼中看到我在調用端點之前設置了Header（和Property）。返回時，相同的標題和屬性值爲空。
我基本上要保持文件名和文件路徑的軌道，這樣我可以把結果寫入到同一位置
與此真正地奮鬥。
import org.apache.camel.builder.RouteBuilder;
import org.springframework.beans.factory.annotation.Value;
public class ProcessingRoute extends RouteBuilder {
@Override
public void configure() throws Exception {
//@formatter:off
from("file:/home/molko/in/?recursive=true&include=.*.txt")
.log("File read from disk : ${file:name}")
.doTry()
.setHeader("JMSReplyTo", constant("response-1"; {create:always, node:{type:queue}}"))
.setHeader("JMSCorrelationID", constant(java.util.UUID.randomUUID().toString()))
.process(new Processor() {
@Override
public void process(Exchange exchange) throws Exception {
final String fileParent = exchange.getIn().getHeader("CamelFileParent", String.class);
final String endPath = fileParent.substring(fileParent.lastIndexOf('/') + 1);
exchange.getIn().setHeader("endPath", endPath);
exchange.setProperty("endPath", endPath);
}
})
.to(amqp:request-1;{node:{type:queue}}?preserveMessageQos=true?exchangePattern=InOut")
.doCatch(Exception.class)
.log("Failed : ${file:name}")
.log("${exception.stacktrace}")
.stop();
from("amqp:response-1; {create:always, node:{type:queue}}")
.log("Received from qpid broker : ${date:now}")
.doTry()
.process(new Processor() {
@Override
public void process(Exchange exchange) throws Exception {
byte[] response = exchange.getIn().getBody(byte[].class);
System.out.println("properties : " + exchange.getProperties());
System.out.println("headers : " + exchange.getIn().getHeaders());
}
})
.to("file:/home/molko/out")
.doCatch(Exception.class)
.log("Failed from qpid brokre : ${date:now}")
.log("${exception.stacktrace}")
.stop();
//@formatter:on
}
}