I am trying to create a fixedfile reader using Apache Camel Bindy but am getting exception.Please help me to find the solution.Without header and footer which is working well.
Update: File is small to understand now and public is added
File Content:
101-08-2009
30A9
20A9
60A9
40A9
10A9
50A8
9000000002
New Exception:
java.lang.IllegalArgumentException: Some fields are missing (optional or mandatory), line: 2
at org.apache.camel.dataformat.bindy.BindyFixedLengthFactory.bind(BindyFixedLengthFactory.java:295) ~[camel-bindy-2.19.1.jar:2.19.1]
at org.apache.camel.dataformat.bindy.fixed.BindyFixedLengthDataFormat.createModel(BindyFixedLengthDataFormat.java:294) ~[camel-bindy-2.19.1.jar:2.19.1]
Exception:
org.apache.camel.RuntimeCamelException: java.lang.IllegalAccessException: Class org.apache.camel.util.ObjectHelper can not access a member of class com.camel.examples.OrderHeader with modifiers ""
at org.apache.camel.util.ObjectHelper.newInstance(ObjectHelper.java:1686) ~[camel-core-2.19.1.jar:2.19.1]
Router:
// @Override
public void configure() throws Exception {
Comparator<Order> comparator = new Comparator<Order>() {
@Override
public int compare(Order o1, Order o2) {
return o1.getOrderNr() - o2.getOrderNr();
}
};
DataFormat bindy = new BindyFixedLengthDataFormat(Order.class);
from("file:C:/Users/workspace/SampleProjects/in?delete=true")
.routeId("ValidateFile-Post2Q")
.unmarshal(bindy).split(body().sort(comparator));
Model Java classes:
@FixedLengthRecord(length = 4, paddingChar = ' ', header = OrderHeader.class, footer = OrderFooter.class)
public class Order {
private @Link OrderHeader header;
private @Link OrderFooter footer;
@DataField(pos = 1, length = 2)
private int orderNr;
@DataField(pos = 3, length = 2)
private String clientNr;
@Override
public String toString() {
// TODO Auto-generated method stub
return orderNr + clientNr + header + footer;
}
public OrderHeader getHeader() {
return header;
}
public void setHeader(OrderHeader header) {
this.header = header;
}
public OrderFooter getFooter() {
return footer;
}
public void setFooter(OrderFooter footer) {
this.footer = footer;
}
public int getOrderNr() {
return orderNr;
}
public void setOrderNr(int orderNr) {
this.orderNr = orderNr;
}
public String getClientNr() {
return clientNr;
}
public void setClientNr(String clientNr) {
this.clientNr = clientNr;
}
}
@FixedLengthRecord
public class OrderFooter {
@DataField(pos = 1, length = 1)
public int recordType ;
@DataField(pos = 2, length = 9)
public String numberOfRecordsInTheFile;
public String toString() {
return recordType + ":" + numberOfRecordsInTheFile;
}
public int getRecordType() {
return recordType;
}
public void setRecordType(int recordType) {
this.recordType = recordType;
}
public String getNumberOfRecordsInTheFile() {
return numberOfRecordsInTheFile;
}
public void setNumberOfRecordsInTheFile(String numberOfRecordsInTheFile) {
this.numberOfRecordsInTheFile = numberOfRecordsInTheFile;
}
}
@FixedLengthRecord
public class OrderHeader {
@DataField(pos = 1, length = 1)
public int recordType = 1;
@DataField(pos = 2, length = 10, pattern = "dd-MM-yyyy")
public Date recordDate;
public String toString() {
return recordType + ":" + new SimpleDateFormat("dd-MM-yyyy").format(recordDate);
}
public int getRecordType() {
return recordType;
}
public void setRecordType(int recordType) {
this.recordType = recordType;
}
public Date getRecordDate() {
return recordDate;
}
public void setRecordDate(Date recordDate) {
this.recordDate = recordDate;
}
}
Dependencies:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.springframework</groupId>
<artifactId>gs-spring-boot</artifactId>
<version>0.1.0</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.8.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-spring-boot-starter</artifactId>
<version>2.19.1</version>
</dependency>
<!-- Camel xquery support -->
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-saxon</artifactId>
<version>2.19.1</version>
</dependency>
<!-- Camel JMS support and ActiveMq -->
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-jms</artifactId>
<version>2.19.1</version>
</dependency>
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-camel</artifactId>
<exclusions>
<exclusion>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-broker</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-ftp</artifactId>
<version>2.19.1</version>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-bindy</artifactId>
<version>2.19.1</version>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-stream</artifactId>
<version>2.19.1</version>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-restlet</artifactId>
<version>2.19.1</version>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-flatpack</artifactId>
<version>2.19.1</version>
</dependency>
<!-- Hawtio dependency - a lightweight web console to monitor and manage
application -->
<dependency>
<groupId>io.hawt</groupId>
<artifactId>hawtio-springboot</artifactId>
<version>1.5.2</version>
</dependency>
<dependency>
<groupId>io.hawt</groupId>
<artifactId>hawtio-core</artifactId>
<version>1.5.2</version>
</dependency>
</dependencies>
<properties>
<java.version>1.8</java.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
I had a quick look at the camel bindy component tests and I could not find one that combines @FixedLengthRecord(header,footer ) with @Link
One possible workaround to your issue could be to
Remove @Link from your header and footer fields in Order e.g
@FixedLengthRecord(length = 4, paddingChar = ' ', header = OrderHeader.class, footer = OrderFooter.class) public class Order {private OrderHeader header; private OrderFooter footer; }2.Then the header and footer are successfully processed by bindy and added in the exchange as headers("CamelBindyFixedLengthHeader","CamelBindyFixedLengthFooter") so with a processor you can set them to the order header,footer fields afterwards e.g
.unmarshal(bindy).split(body()).process(exchange -> { Order order = exchange.getIn().getBody(Order.class);
order.setFooter((OrderFooter)exchange.getIn().getHeader(BindyFixedLengthDataFormat.CAMEL_BINDY_FIXED_LENGTH_FOOTER,Map.class).get(OrderFooter.class.getName())); order.setHeader((OrderHeader)exchange.getIn().getHeader(BindyFixedLengthDataFormat.CAMEL_BINDY_FIXED_LENGTH_HEADER,Map.class).get(OrderHeader.class.getName())); });
Related camel unit test here
Make sure your POJOs are public classes. Its not your POJO class that instantiate another class, its camel-bindy / camel-core and that code runs in org.apache.camel packages, and cannot rely on package visible access to POJOs. So bottom line, keep it public so its standard Java beans.
The camel-bindy sometimes tries to bind to the wrong model object.
A solution that I found on web was to try to put each model object in a different package.(not a clean solution but good enough to know where the issue lies - with our code or with library)
I was getting a similar exception & although this solution didn't work for me but maybe you can give it a try.
You can see the details, here: Camel-bindy exception
来源：https://stackoverflow.com/questions/47071656/java-lang-illegalargumentexception-some-fields-are-missing-optional-or-mandato