package org.apache.helix;
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
import java.io.IOException;
import java.io.Reader;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.channels.ReadableByteChannel;
import java.util.List;
import java.util.Map;
import org.apache.helix.tools.ClusterSetup;
import org.apache.log4j.Logger;
import org.codehaus.jackson.JsonGenerationException;
import org.codehaus.jackson.map.JsonMappingException;
import org.restlet.Context;
import org.restlet.data.Form;
import org.restlet.data.MediaType;
import org.restlet.data.Method;
import org.restlet.data.Request;
import org.restlet.data.Response;
import org.restlet.data.Status;
import org.restlet.resource.Representation;
import org.restlet.resource.Resource;
import org.restlet.resource.ResourceException;
import org.restlet.resource.StringRepresentation;
import org.restlet.resource.Variant;
public class EspressoResource extends Resource {
private static final int POST_BODY_BUFFER_SIZE = 1024*10;
private static final Logger logger = Logger
.getLogger(EspressoResource.class);
Context _context;
public EspressoResource(Context context,
Request request,
Response response)
{
super(context, request, response);
getVariants().add(new Variant(MediaType.TEXT_PLAIN));
getVariants().add(new Variant(MediaType.APPLICATION_JSON));
_context = context;
}
public boolean allowGet()
{
System.out.println("PutResource.allowGet()");
return true;
}
public boolean allowPost()
{
System.out.println("PutResource.allowPost()");
return true;
}
public boolean allowPut()
{
System.out.println("PutResource.allowPut()");
return true;
}
public boolean allowDelete()
{
return false;
}
/*
* Handle get requests
* @see org.restlet.resource.Resource#represent(org.restlet.resource.Variant)
*/
public Representation represent(Variant variant)
{
StringRepresentation presentation = null;
try
{
String databaseId = (String)getRequest().getAttributes().get(MockEspressoService.DATABASENAME);
String tableId = (String)getRequest().getAttributes().get(MockEspressoService.TABLENAME);
String resourceId = (String)getRequest().getAttributes().get(MockEspressoService.RESOURCENAME);
String subResourceId = (String)getRequest().getAttributes().get(MockEspressoService.SUBRESOURCENAME);
logger.debug("Done getting request components");
logger.debug("method: "+getRequest().getMethod());
String composedKey = databaseId + tableId + resourceId; // + subResourceId;
EspressoStorageMockNode mock = (EspressoStorageMockNode)_context.getAttributes().get(MockEspressoService.CONTEXT_MOCK_NODE_NAME);
if (getRequest().getMethod() == Method.PUT) {
logger.debug("processing PUT");
Reader postBodyReader;
//TODO: get to no fixed size on buffer
char[] postBody = new char[POST_BODY_BUFFER_SIZE];
postBodyReader = getRequest().getEntity().getReader();
postBodyReader.read(postBody);
logger.debug("postBody: "+new String(postBody));
mock.doPut(databaseId, composedKey, new String(postBody));
presentation = new StringRepresentation("Put succeeded", MediaType.APPLICATION_JSON);
}
else if (getRequest().getMethod() == Method.GET) {
logger.debug("processing GET");
String result = mock.doGet(databaseId, composedKey);
logger.debug("result: "+result);
if (result == null) {
presentation = new StringRepresentation("Record not found", MediaType.APPLICATION_JSON);
getResponse().setStatus(Status.CLIENT_ERROR_NOT_FOUND,"Record not found");
}
else {
getResponse().setStatus(Status.SUCCESS_OK,"Success");
presentation = new StringRepresentation(result, MediaType.APPLICATION_JSON);
}
}
}
catch (IOException e) {
presentation = new StringRepresentation(e.getMessage(), MediaType.APPLICATION_JSON);
e.printStackTrace();
}
catch(Exception e)
{
String error = "Error with op"; //ClusterRepresentationUtil.getErrorAsJsonStringFromException(e);
presentation = new StringRepresentation(error, MediaType.APPLICATION_JSON);
e.printStackTrace();
}
return presentation;
}
/*
* Handle put requests (non-Javadoc)
* @see org.restlet.resource.Resource#storeRepresentation(org.restlet.resource.Representation)
*/
public void storeRepresentation(Representation entity) throws ResourceException {
logger.debug("in storeRepresentation");
StringRepresentation presentation = null;
// try {
Form requestHeaders = (Form) getRequest().getAttributes().get("org.restlet.http.headers");
Map<String, String> headerMap = requestHeaders.getValuesMap();
logger.debug("HEADERS MAP");
for (String key : headerMap.keySet()) {
logger.debug(key+" : "+headerMap.get(key));
}
// } catch (IOException e1) {
// TODO Auto-generated catch block
//e1.printStackTrace();
//}
try
{
logger.debug("in PutResource handle");
String databaseId = (String)getRequest().getAttributes().get(MockEspressoService.DATABASENAME);
String tableId = (String)getRequest().getAttributes().get(MockEspressoService.TABLENAME);
String resourceId = (String)getRequest().getAttributes().get(MockEspressoService.RESOURCENAME);
String subResourceId = (String)getRequest().getAttributes().get(MockEspressoService.SUBRESOURCENAME);
logger.debug("Done getting request components");
logger.debug("method: "+getRequest().getMethod());
String composedKey = databaseId + tableId + resourceId; // + subResourceId;
EspressoStorageMockNode mock = (EspressoStorageMockNode)_context.getAttributes().get(MockEspressoService.CONTEXT_MOCK_NODE_NAME);
if (getRequest().getMethod() == Method.PUT) {
logger.debug("processing PUT");
Reader postBodyReader;
//TODO: get to no fixed size on buffer
char[] postBody = new char[POST_BODY_BUFFER_SIZE];
postBodyReader = getRequest().getEntity().getReader();
postBodyReader.read(postBody);
logger.debug("postBody: "+new String(postBody));
mock.doPut(databaseId, composedKey, new String(postBody));
presentation = new StringRepresentation("Put succeeded", MediaType.APPLICATION_JSON);
}
else if (getRequest().getMethod() == Method.GET) {
logger.debug("Processing GET");
String result = mock.doGet(databaseId, composedKey);
logger.debug("result: "+result);
if (result == null) {
presentation = new StringRepresentation("Record not found", MediaType.APPLICATION_JSON);
}
else {
presentation = new StringRepresentation(result, MediaType.APPLICATION_JSON);
}
}
}
catch (IOException e) {
presentation = new StringRepresentation(e.getMessage(), MediaType.APPLICATION_JSON);
e.printStackTrace();
}
catch(Exception e)
{
String error = "Error with op";
presentation = new StringRepresentation(error, MediaType.APPLICATION_JSON);
e.printStackTrace();
}
finally {
entity.release();
}
}
}