activities/src/main/java/org/apache/abdera2/activities/protocol/AbstractActivitiesWorkspaceProvider.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  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.  For additional information regarding
 * copyright in this work, please see the NOTICE file in the top level
 * directory of this distribution.
 */
package org.apache.abdera2.activities.protocol;

import java.util.HashSet;
import java.util.Set;

import org.apache.abdera2.activities.model.TypeAdapter;
import org.apache.abdera2.common.mediatype.MimeTypeHelper;
import org.apache.abdera2.common.protocol.AbstractWorkspaceProvider;
import org.apache.abdera2.common.protocol.CollectionRequestProcessor;
import org.apache.abdera2.common.protocol.EntryRequestProcessor;
import org.apache.abdera2.common.protocol.Provider;
import org.apache.abdera2.common.protocol.RequestContext;
import org.apache.abdera2.common.protocol.ResponseContext;
import org.apache.abdera2.common.protocol.TargetType;
import org.apache.abdera2.common.protocol.WorkspaceManager;

public abstract class AbstractActivitiesWorkspaceProvider 
  extends AbstractWorkspaceProvider
  implements Provider, 
             WorkspaceManager,
             ActivitiesProvider {
  
  protected Set<TypeAdapter<?>> typeAdapters = new HashSet<TypeAdapter<?>>();
  
  protected AbstractActivitiesWorkspaceProvider() {
    this.requestProcessors.put(TargetType.TYPE_COLLECTION, 
        new CollectionRequestProcessor() {
          protected boolean isAcceptableItemType(RequestContext context) {
            return MimeTypeHelper.isMatch(
                context.getContentType().toString(), 
                "application/json");
          }
    });
    this.requestProcessors.put(TargetType.TYPE_ENTRY, new EntryRequestProcessor());
  }
  
  public void addTypeAdapter(TypeAdapter<?> typeAdapter) {
    typeAdapters.add(typeAdapter);
  }
  
  public void removeTypeAdapter(TypeAdapter<?> typeAdapter) {
    typeAdapters.remove(typeAdapter);
  }
  
  public Set<TypeAdapter<?>> getTypeAdapters() {
    return typeAdapters;
  }
  
  @SuppressWarnings("unchecked")
  public <S extends ResponseContext> S createErrorResponse(
    int code,
    String message, 
    Throwable t) {
      ErrorObject errorObject = new ErrorObject();
      errorObject.setDisplayName(message);
      errorObject.setCode(code);
      ActivitiesResponseContext<ErrorObject> rc = 
        new ActivitiesResponseContext<ErrorObject>(errorObject);
      rc.setStatus(code);
      rc.setStatusText(message);
      return (S)rc;
  }
  
  @Override
  public <S extends ResponseContext> S process(RequestContext request) {
    return super.process(
      request instanceof ActivitiesRequestContext?
        request:
        new ActivitiesRequestContext(request));
  }
}