Hello,
I was struggling to return a hashmap from a cxf based web service and I
came across your tutorial. I tried the same way, but still could not suceed
in that.I have presented my issue below. If found time, pls have a look at
this and suggest me :)
My portion of WSDL is as follows which I want to be a hashmap
<xsd:element name="LaunchVMsResponse">
<xsd:complexType name = "resultMap">
<xsd:sequence>
<xsd:element name="entry" minOccurs="0"
maxOccurs="unbounded">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="key"
type="xsd:string"/>
<xsd:element name="value"
type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
The coresponding service interface is as follows:-
@WebService(targetNamespace = "http://www.eads.net/ved/contract/manager";,
name = "VMManagerServicePortType")
@XmlSeeAlso({net.eads.ved.schema.manager.ObjectFactory.class,java.util.HashMap.class})
@XmlJavaTypeAdapter(ResultMapAdapter.class)
public interface VMManagerServicePortType {
@WebResult(name = "entry", targetNamespace = "")
@RequestWrapper(localName = "LaunchVMs", targetNamespace =
"http://www.eads.net/ved/schema/manager";, className =
"net.eads.ved.schema.manager.LaunchVMs")
@WebMethod(operationName = "LaunchVMs")
@ResponseWrapper(localName = "LaunchVMsResponse", targetNamespace =
"http://www.eads.net/ved/schema/manager";, className =
"net.eads.ved.schema.manager.ResultMap")
/*public java.util.List<net.eads.ved.schema.manager.ResultMap.Entry>
launchVMs(
@WebParam(name = "hostList_launch", targetNamespace = "")
java.util.List<java.lang.String> hostListLaunch
);*/
public HashMap<String,String> launchVMs(
@WebParam(name = "hostList_launch", targetNamespace = "")
java.util.List<java.lang.String> hostListLaunch
);
}
I have hidden the auto generated method description and wrote my own. I have
also implemented one more class called ResultMapAdapter.class in which I
have doe marshalling and unmarshaling of hashmap to resultmap and vice
versa.
public class ResultMapAdapter extends
XmlAdapter<ResultMap,HashMap<String,String>>{
@Override
public ResultMap marshal(HashMap<String, String> v) {
try{
System.out.println("burrr marshal");
ResultMap rMap = new ResultMap();
ResultMap.Entry entry = new ResultMap.Entry();
Iterator<String> i = v.keySet().iterator();
while(i.hasNext())
{
String temp = i.next();
entry.setKey(temp);
entry.setValue(v.get(temp));
rMap.getEntry().add(entry);
}
/*JAXBContext jc = JAXBContext.newInstance(HashMap.class);
Marshaller m = jc.createMarshaller();
m.marshal(new JAXBElement(new
QName(""),HashMap.class,rMap),System.out);*/
return rMap;
}
catch(Exception e){
e.printStackTrace();
return null;
}
}
@Override
public HashMap<String, String> unmarshal(ResultMap v) {
try{
System.out.println("burrr unmarshal");
HashMap<String,String> map = new HashMap<String,String>();
List<ResultMap.Entry> entries = new
ArrayList<ResultMap.Entry>();
for(int i = 0; i<entries.size();i++)
{
map.put(entries.get(i).getKey(),entries.get(i).getValue());
}
return map;
}
catch(Exception e){
e.printStackTrace();
return null;
}
}
I could deploy this service onto container and see its publishing but when I
invoke the method through a client, an erros comes in the container saying,
java.util.HashMap cannot be casted to java.util.List. I am struggling here
for the past few days and could not come to a solution. For your reference I
have also given my ResultMap class
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "resultMap", propOrder = {
"entry"
})
public class ResultMap {
@XmlJavaTypeAdapter(ResultMapAdapter.class);
protected List<ResultMap.Entry> entries;
public ResultMap(){} // empty constructor
public List<ResultMap.Entry> getEntry() {
if (entries == null) {
entries = new ArrayList<ResultMap.Entry>();
}
return this.entries;
}
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "", propOrder = {
"key",
"value"
})
public static class Entry {
@XmlElement(required = true)
protected String key;
@XmlElement(required = true)
protected String value;
/**
* Gets the value of the key property.
*
* @return
* possible object is
* {...@link String }
*
*/
public String getKey() {
return key;
}
public void setKey(String value) {
this.key = value;
}
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
}
}
Can you figure out from these input where I am doing wrong ? Thanks a lot,
With regards
Balachandar
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