org.apache.wink.common.model.multipart.InMultiPart Maven / Gradle / Ivy
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package org.apache.wink.common.model.multipart;
import java.io.IOException;
import java.util.Iterator;
import java.util.NoSuchElementException;
import javax.ws.rs.ext.Providers;
import org.apache.wink.common.RestException;
import org.apache.wink.common.internal.providers.multipart.MultiPartParser;
/**
* This class is used to represent inbound MultiPart messages, it implements
* an Iterator to iterate over the message's parts. A typical usage of
* InMultiPart looks like this:
*
* @POST
* @Consumes( MediaTypeUtils.MULTIPART_FORM_DATA)
* public String postMultipart(InMultiPart inMP) throws IOException
* {
* while(inMP.hasNext()) {
* InPart part = inMP.next();
* MyClass myOject =part.getBody(MyClass.class, null);
* // Do somthing
*
* .
* .
* }
*/
public class InMultiPart implements Iterator {
public final static String SEP = "\r\n"; //$NON-NLS-1$
//private String boundary = "simple boundary";
private MultiPartParser MPParser;
int index = -1;
boolean moved = false;
boolean lastMoveResult = true;
private Providers providers;
public Providers getProviders() {
return providers;
}
public void setProviders(Providers providers) {
this.providers = providers;
}
public InMultiPart(MultiPartParser mim) {
MPParser = mim;
}
/**
* Returns true if the iteration has more elements. (In other
* words, returns true if next would return an element
* rather than throwing an exception.)
* NOTICE: calling the has next will cause the inputStream of the previous
* part to be invalid
*
* @return true if the iterator has more elements.
*/
public boolean hasNext() {
if (!moved) {
try {
lastMoveResult = MPParser.nextPart();
} catch (IOException e) {
throw new RestException(e);
}
moved = true;
index++;
}
return lastMoveResult;
}
public InPart next() {
if (!hasNext()) {
throw new NoSuchElementException();
}
moved = false;
InPart ip = new InPart();
ip.setHeaders(MPParser.getPartHeaders());
ip.setInputStream(MPParser.getPartBodyStream());
ip.setProviders(providers);
return ip;
}
/**
* Not implemented
*/
public void remove() {
throw new UnsupportedOperationException();
}
}
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