TypeResource.java

package org.cad.interruptus.rest;

import com.wordnik.swagger.annotations.Api;
import com.wordnik.swagger.annotations.ApiOperation;
import com.wordnik.swagger.annotations.ApiParam;
import com.wordnik.swagger.annotations.ApiResponse;
import com.wordnik.swagger.annotations.ApiResponses;
import java.util.List;
import javax.inject.Inject;
import javax.inject.Singleton;
import javax.ws.rs.Consumes;
import javax.ws.rs.DELETE;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;

import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.cad.interruptus.core.EntityNotFoundException;
import org.cad.interruptus.core.esper.TypeConfiguration;
import org.cad.interruptus.entity.Type;
import org.cad.interruptus.repository.TypeRepository;
import org.cad.interruptus.repository.zookeeper.listener.ConfigurationEventDispatcher;

@Singleton
@Path("/type")
@Produces({MediaType.APPLICATION_JSON})
@Consumes({MediaType.APPLICATION_JSON})
@Api(value = "/type", description = "Event type operations")
public class TypeResource
{
    @Inject
    TypeRepository repository;
    
    @Inject
    TypeConfiguration configuration;
    
    @Inject
    ConfigurationEventDispatcher dispatcher;

    Log logger = LogFactory.getLog(getClass());

    @GET
    @ApiOperation(
        value = "List all types",
        notes = "List all event types available",
        response = Type.class,
        responseContainer = "List"
    )
    public List<Type> list()
    {
        try {
            return repository.findAll();
        } catch (Exception ex) {
            logger.error(this, ex);
            throw new ResourceException(Response.Status.SERVICE_UNAVAILABLE, ex.getMessage());
        }
    }

    @POST
    @ApiOperation(
        value = "Save a type configuration",
        notes = "Save a type configuration, if the flow already exists will be overwritten",
        response = Boolean.class
    )
    public Boolean save(final Type entity)
    {
        try {

            configuration.save(entity);
            repository.save(entity);
            dispatcher.dispatchSave(entity);

            return Boolean.TRUE;
        } catch (Exception ex) {
            logger.error(this, ex);
            throw new ResourceException(Response.Status.SERVICE_UNAVAILABLE, ex.getMessage());
        }
    }

    @GET
    @Path("/{name}")
    @ApiOperation(
        value = "Retreives a type configuration",
        notes = "Retreives a type configuration, throws exception if does not exists",
        response = Type.class
    )
    @ApiResponses({
        @ApiResponse(code = 404, message = "Type doesn't exists")
    })
    public Type show(@ApiParam(value = "Flow name to lookup for", required = true) @PathParam("name") String name)
    {
        try {
            return repository.findById(name);
        } catch (EntityNotFoundException ex) {
            throw new ResourceException(ex);
        } catch (Exception ex) {
            logger.error(this, ex);
            throw new ResourceException(Response.Status.SERVICE_UNAVAILABLE, ex.getMessage());
        }
    }

    @DELETE
    @Path("/{name}")
    @ApiOperation(
        value = "Removes a type configuration",
        notes = "Removes a type configuration, throws exception if does not exists",
        response = Type.class
    )
    @ApiResponses({
        @ApiResponse(code = 404, message = "Type doesn't exists")
    })
    public Boolean remove(@ApiParam(value = "Flow name to lookup for", required = true) @PathParam("name") String name)
    {
        try {

            final Type entity = repository.findById(name);

            repository.remove(name);
            dispatcher.dispatchDelete(entity);

            return true;
        } catch (EntityNotFoundException ex) {
            throw new ResourceException(ex);
        } catch (Exception ex) {
            logger.error(this, ex);
            throw new ResourceException(Response.Status.SERVICE_UNAVAILABLE, ex.getMessage());
        }
    }
}