net.sf.ehcache.management.resource.services.CacheManagerConfigsResourceServiceImpl Maven / Gradle / Ivy

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Ehcache is an open source, standards-based cache used to boost performance, offload the database and simplify scalability. Ehcache is robust, proven and full-featured and this has made it the most widely-used Java-based cache.

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package net.sf.ehcache.management.resource.services;

import net.sf.ehcache.management.resource.CacheManagerConfigEntity;
import net.sf.ehcache.management.service.EntityResourceFactory;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.terracotta.management.ServiceExecutionException;
import org.terracotta.management.ServiceLocator;
import org.terracotta.management.resource.exceptions.ResourceRuntimeException;
import org.terracotta.management.resource.services.validator.RequestValidator;

import java.util.Arrays;
import java.util.Collection;
import java.util.HashSet;
import java.util.Set;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriInfo;

/**
 * @author brandony
 */
@Path("/agents/cacheManagers/configs")
public final class CacheManagerConfigsResourceServiceImpl {
  private static final Logger LOG = LoggerFactory.getLogger(CacheManagerConfigsResourceServiceImpl.class);

  private final EntityResourceFactory entityResourceFactory;

  private final RequestValidator validator;

  public CacheManagerConfigsResourceServiceImpl() {
    this.entityResourceFactory = ServiceLocator.locate(EntityResourceFactory.class);
    this.validator = ServiceLocator.locate(RequestValidator.class);
  }

  /**
   * Get a {@code Collection} of {@link CacheManagerConfigEntity} objects representing the cache manager configuration
   * information provided by the associated monitorable entity's agent given the request path.
   *
   *
   * @param {@link UriInfo} for this resource request
   * @return a collection of {@link CacheManagerConfigEntity} objects
   */
  @GET
  @Produces(MediaType.APPLICATION_JSON)
  public Collection getCacheManagerConfigs(@Context UriInfo info) {
    LOG.debug(String
        .format("Invoking CacheManagerConfigsResourceServiceImpl.getXMLCacheManagerConfigs: %s", info.getRequestUri()));

    validator.validateSafe(info);

    String names = info.getPathSegments().get(1).getMatrixParameters().getFirst("names");
    Set cmNames = names == null ? null : new HashSet(Arrays.asList(names.split(",")));

    try {
      return entityResourceFactory.createCacheManagerConfigEntities(cmNames);
    } catch (ServiceExecutionException e) {
      throw new ResourceRuntimeException("Failed to get xml cache manager configs", e,
          Response.Status.BAD_REQUEST.getStatusCode());
    }
  }

}