core/src/main/java/org/jclouds/rest/RestContextSpec.java

/**
 * Licensed to jclouds, Inc. (jclouds) under one or more
 * contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  jclouds 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.
 */
package org.jclouds.rest;

import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import static java.util.Collections.EMPTY_LIST;

import org.jclouds.PropertiesBuilder;

import com.google.common.base.Objects;
import com.google.common.collect.ImmutableList;
import com.google.inject.Module;

/**
 * @author Adrian Cole
 */
public class RestContextSpec<S, A> {
   protected final String provider;
   protected final String endpoint;
   protected final String apiVersion;
   protected final String buildVersion;
   protected final String iso3166Codes;
   protected final String identity;
   protected final String credential;
   protected final Class<S> sync;
   protected final Class<A> async;
   protected final Class<PropertiesBuilder> propertiesBuilderClass;
   protected final Class<RestContextBuilder<S, A>> contextBuilderClass;
   protected final Iterable<Module> modules;

   public RestContextSpec(String provider, String endpoint, String apiVersion, String buildVersion, String iso3166Codes, String identity,
            String credential, Class<S> sync, Class<A> async, Class<PropertiesBuilder> propertiesBuilderClass,
            Class<RestContextBuilder<S, A>> contextBuilderClass, Iterable<Module> modules) {
      this.provider = checkNotNull(provider, "provider");
      this.endpoint = endpoint;
      this.apiVersion = apiVersion;
      this.buildVersion = buildVersion;
      this.identity = identity;
      this.credential = credential;
      this.iso3166Codes = iso3166Codes;
      this.sync = sync;
      this.async = async;
      checkArgument(RestContextBuilder.class.isAssignableFrom(contextBuilderClass), contextBuilderClass.getName()
               + " is not a subclass of " + RestContextBuilder.class.getName());
      checkArgument(PropertiesBuilder.class.isAssignableFrom(propertiesBuilderClass), propertiesBuilderClass.getName()
               + " is not a subclass of " + PropertiesBuilder.class.getName());
      this.propertiesBuilderClass = propertiesBuilderClass;
      this.contextBuilderClass = contextBuilderClass;
      this.modules = ImmutableList.copyOf(modules);
   }

   @SuppressWarnings( { "unchecked", "rawtypes" })
   public RestContextSpec(String provider, String endpoint, String apiVersion, String buildVersion, String iso3166Codes, String identity,
            String credential, Class<S> sync, Class<A> async) {
      this(provider, endpoint, apiVersion, buildVersion, iso3166Codes, identity, credential, sync, async, PropertiesBuilder.class,
               (Class) RestContextBuilder.class, EMPTY_LIST);
   }


   @Override
   public int hashCode() {
      return Objects.hashCode(provider, endpoint, apiVersion, buildVersion, iso3166Codes, identity, credential, sync, async,
               propertiesBuilderClass, contextBuilderClass, modules);
   }

   @Override
   public boolean equals(Object that) {
      if (that == null)
         return false;
      return Objects.equal(this.toString(), that.toString());
   }

   @Override
   public String toString() {
      return Objects.toStringHelper(this).add("provider", provider).add("endpoint", endpoint).add("apiVersion",
               apiVersion).add("buildVersion", buildVersion).add("iso3166Codes", iso3166Codes)
               .add("identity", identity).add("sync", sync).add("async", async).add("propertiesBuilderClass",
                        propertiesBuilderClass).add("contextBuilderClass", contextBuilderClass).add("modules", modules)
               .toString();
   }

}