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package org.glassfish.admin.rest.provider;
import java.io.IOException;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Set;
import javax.ws.rs.Produces;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.Provider;
import com.fasterxml.jackson.core.JsonEncoding;
import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.core.JsonGenerator;
import org.glassfish.api.admin.ProgressStatus;
import org.glassfish.api.admin.progress.ProgressStatusBase;
import org.glassfish.api.admin.progress.ProgressStatusBase.ChildProgressStatus;
/** Marshal ProgressStatus to JSON
*
* @author mmares
*/
@Provider
@Produces({MediaType.APPLICATION_JSON, "application/x-javascript"})
public class ProgressStatusJsonProvider extends BaseProvider<ProgressStatusBase> {
private static final JsonFactory factory = new JsonFactory();
public ProgressStatusJsonProvider() {
super(ProgressStatus.class, MediaType.APPLICATION_JSON_TYPE, new MediaType("application", "x-javascript"));
}
@Override
protected boolean isGivenTypeWritable(Class<?> type, Type genericType) {
return desiredType.isAssignableFrom(type);
}
@Override
public void writeTo(ProgressStatusBase proxy, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType,
MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream) throws IOException, WebApplicationException {
JsonGenerator out = factory.createJsonGenerator(entityStream, JsonEncoding.UTF8);
out.writeStartObject();
writeJson("progress-status", proxy, -1, out);
out.writeEndObject();
out.flush();
}
public void writeJson(String name, ProgressStatusBase ps, int allocatedSteps, JsonGenerator out) throws IOException {
if (ps == null) {
return;
}
if (name != null) {
out.writeObjectFieldStart(name);
} else {
out.writeStartObject();
}
out.writeStringField("name", ps.getName());
out.writeStringField("id", ps.getId());
if (allocatedSteps >= 0) {
out.writeNumberField("allocated-steps", allocatedSteps);
}
out.writeNumberField("total-step-count", ps.getTotalStepCount());
out.writeNumberField("current-step-count", ps.getCurrentStepCount());
out.writeBooleanField("complete", ps.isComplete());
Set<ChildProgressStatus> children = ps.getChildProgressStatuses();
if (children != null && !children.isEmpty()) {
out.writeArrayFieldStart("children");
for (ChildProgressStatus child : children) {
writeJson(null, child.getProgressStatus(), child.getAllocatedSteps(), out);
}
out.writeEndArray();
}
out.writeEndObject();
}
@Override
public String getContent(ProgressStatusBase proxy) {
throw new UnsupportedOperationException("Not supported yet.");
}
}