/*
* © Copyright IBM Corp. 2013
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package com.ibm.sbt.services.client.base.datahandlers;
import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.AbstractList;
import java.util.List;
import org.apache.http.Header;
import org.apache.http.HttpRequest;
import org.apache.http.HttpResponse;
import org.apache.http.cookie.Cookie;
import org.apache.http.impl.client.DefaultHttpClient;
import com.ibm.sbt.services.client.ClientService.Args;
import com.ibm.sbt.services.client.Response;
import com.ibm.sbt.services.client.base.BaseEntity;
import com.ibm.sbt.services.client.base.BaseService;
import com.ibm.sbt.services.client.base.IFeedHandler;
public abstract class EntityList<Entity extends BaseEntity> extends AbstractList<Entity> implements ResponseProvider, Externalizable {
private Response requestData;
private List<Entity> entities;
//Make it final
private IFeedHandler<Entity> feedHandler;
//TO REMOVE
private BaseService service;
public EntityList(){}
public EntityList(Response requestData, IFeedHandler<Entity> feedHandler) {
init(requestData, feedHandler);
}
protected void init(Response requestData, IFeedHandler<Entity> feedHandler) {
this.requestData = requestData;
this.feedHandler = feedHandler;
// in case of 401 errors client service returns null
if (requestData != null) {
this.entities = createEntities();
} else {
this.entities = null;
}
}
//TO REMOVE
public EntityList(Response requestData, BaseService service) {
this.requestData = requestData;
this.service = service;
this.entities = createEntities();
}
abstract protected List<Entity> createEntities();
@Override
public Object getData() {
return requestData.getData();
}
@Override
public List<Cookie> getCookies() {
DefaultHttpClient httpClient = (DefaultHttpClient)requestData.getHttpClient();
return httpClient.getCookieStore().getCookies();
}
@Override
public Header[] getRequestHeaders() {
return requestData.getRequest().getAllHeaders();
}
@Override
public Header[] getResponseHeaders() {
return requestData.getResponse().getAllHeaders();
}
private Header getHeaderByName(String headerName, Header[] headers) {
for (Header header: headers){
if (header.getName().equalsIgnoreCase(headerName)){
return header;
}
}
return null;
}
@Override
public Header getRequestHeader(String headerName) {
Header[] headers = getRequestHeaders();
return getHeaderByName(headerName, headers);
}
@Override
public Args getArgs(){
return requestData.getArgs();
}
@Override
public Header getResponseHeader(String headerName) {
Header[] headers = getResponseHeaders();
return getHeaderByName(headerName, headers);
}
@Override
public HttpResponse getHttpResponse() {
return requestData.getResponse();
}
@Override
public HttpRequest getHttpRequest() {
return requestData.getRequest();
}
public IFeedHandler<Entity> getFeedHandler() {
return feedHandler;
}
protected Entity getEntity(Object data){
return getFeedHandler().createEntityFromData(data);
}
/*UNCOMMENT
public BaseService getService() {
return feedHandler.getService();
}
*/
public BaseService getService() {
return service;
}
@Override
public Entity get(int index) {
return (entities != null && entities.size()>0)?entities.get(index):null;
}
@Override
public int size() {
return (entities == null) ? 0 : entities.size();
}
@Override
public void readExternal(ObjectInput inputStream) throws IOException, ClassNotFoundException {
// Retrieve the entity data and other values like endpoint name and service name
Response data = (Response) inputStream.readObject();
List<Entity> entities = (List<Entity>) inputStream.readObject();
BaseService service = (BaseService) inputStream.readObject();
this.requestData = data;
this.entities = entities;
this.service = service;
}
@Override
public void writeExternal(ObjectOutput outputStream) throws IOException {
// Serialize the data elements
outputStream.writeObject(requestData);
outputStream.writeObject(entities);
outputStream.writeObject(getService());
}
}