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package org.glassfish.jersey.examples.linking.representation;
import java.util.ArrayList;
import java.util.List;
import javax.ws.rs.core.Link;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlElementWrapper;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlTransient;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
import org.glassfish.jersey.examples.linking.model.ItemsModel;
import org.glassfish.jersey.examples.linking.resources.ItemsResource;
import org.glassfish.jersey.linking.Binding;
import org.glassfish.jersey.linking.InjectLink;
import org.glassfish.jersey.linking.InjectLink.Style;
import org.glassfish.jersey.linking.InjectLinks;
/**
* JAXB representation of a sublist of items
*
* @author Mark Hadley
* @author Gerard Davison (gerard.davison at oracle.com)
*/
@XmlAccessorType(XmlAccessType.NONE)
@XmlRootElement(name = "items")
@InjectLinks({
@InjectLink(
resource = ItemsResource.class,
style = Style.ABSOLUTE,
method = "query",
condition = "${instance.offset + instance.limit < instance.modelLimit}",
bindings = {
@Binding(name = "offset", value = "${instance.offset + instance.limit}"),
@Binding(name = "limit", value = "${instance.limit}")
},
rel = "next"
),
@InjectLink(
resource = ItemsResource.class,
style = Style.ABSOLUTE,
method = "query",
condition = "${instance.offset - instance.limit >= 0}",
bindings = {
@Binding(name = "offset", value = "${instance.offset - instance.limit}"),
@Binding(name = "limit", value = "${instance.limit}")
},
rel = "prev"
)})
public class ItemsRepresentation {
@XmlElement(name = "items")
private List<ItemRepresentation> items;
@XmlTransient
private int offset, limit;
@XmlTransient
private ItemsModel itemsModel;
@InjectLink(
resource = ItemsResource.class,
method = "query",
style = Style.ABSOLUTE,
bindings = {@Binding(name = "offset", value = "${instance.offset}"),
@Binding(name = "limit", value = "${instance.limit}")
},
rel = "self"
)
@XmlJavaTypeAdapter(Link.JaxbAdapter.class)
@XmlElement(name = "link")
Link self;
@InjectLinks({
@InjectLink(
resource = ItemsResource.class,
style = Style.ABSOLUTE,
method = "query",
condition = "${instance.offset + instance.limit < instance.modelLimit}",
bindings = {
@Binding(name = "offset", value = "${instance.offset + instance.limit}"),
@Binding(name = "limit", value = "${instance.limit}")
},
rel = "next"
),
@InjectLink(
resource = ItemsResource.class,
style = Style.ABSOLUTE,
method = "query",
condition = "${instance.offset - instance.limit >= 0}",
bindings = {
@Binding(name = "offset", value = "${instance.offset - instance.limit}"),
@Binding(name = "limit", value = "${instance.limit}")
},
rel = "prev"
)})
@XmlElement(name = "link")
@XmlElementWrapper(name = "links")
@XmlJavaTypeAdapter(Link.JaxbAdapter.class)
List<Link> links;
public ItemsRepresentation() {
offset = 0;
limit = 10;
}
public ItemsRepresentation(ItemsModel itemsModel, int offset, int limit) {
this.offset = offset;
this.limit = limit;
this.itemsModel = itemsModel;
items = new ArrayList<>();
for (int i = offset; i < (offset + limit) && i < itemsModel.getSize(); i++) {
items.add(new ItemRepresentation(
itemsModel,
Integer.toString(i),
itemsModel.getItem(Integer.toString(i)).getName()));
}
}
public int getOffset() {
return offset;
}
public int getLimit() {
return limit;
}
public int getModelLimit() {
return itemsModel.getSize();
}
}