/*
    * 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.
   */
  package org.apache.chemistry.opencmis.client.bindings.spi.browser;
  
  import java.io.IOException;
  import java.io.OutputStream;
  import java.util.List;
  
  import org.apache.chemistry.opencmis.client.bindings.spi.BindingSession;
  import org.apache.chemistry.opencmis.client.bindings.spi.http.Output;
  import org.apache.chemistry.opencmis.client.bindings.spi.http.Response;
  import org.apache.chemistry.opencmis.commons.data.ExtensionsData;
  import org.apache.chemistry.opencmis.commons.data.ObjectData;
  import org.apache.chemistry.opencmis.commons.impl.Constants;
  import org.apache.chemistry.opencmis.commons.impl.JSONConverter;
  import org.apache.chemistry.opencmis.commons.impl.TypeCache;
  import org.apache.chemistry.opencmis.commons.impl.UrlBuilder;
  import org.apache.chemistry.opencmis.commons.spi.PolicyService;
  
  /**
   * Policy Service Browser Binding client.
   */
  public class PolicyServiceImpl extends AbstractBrowserBindingService implements PolicyService {
  
      /**
       * Constructor.
       */
      public PolicyServiceImpl(BindingSession session) {
          setSession(session);
      }
  
      @Override
      public void applyPolicy(String repositoryId, String policyId, String objectId, ExtensionsData extension) {
          // build URL
          UrlBuilder url = getObjectUrl(repositoryId, objectId);
  
          // prepare form data
          final FormDataWriter formData = new FormDataWriter(Constants.CMISACTION_APPLY_POLICY);
          formData.addPolicyIdParameter(policyId);
  
          // send
          postAndConsume(url, formData.getContentType(), new Output() {
              @Override
              public void write(OutputStream out) throws IOException {
                  formData.write(out);
              }
          });
      }
  
      @Override
      public void removePolicy(String repositoryId, String policyId, String objectId, ExtensionsData extension) {
          // build URL
          UrlBuilder url = getObjectUrl(repositoryId, objectId);
  
          // prepare form data
          final FormDataWriter formData = new FormDataWriter(Constants.CMISACTION_REMOVE_POLICY);
          formData.addPolicyIdParameter(policyId);
  
          // send
          postAndConsume(url, formData.getContentType(), new Output() {
              @Override
              public void write(OutputStream out) throws IOException {
                  formData.write(out);
              }
          });
      }
  
      @Override
      public List<ObjectData> getAppliedPolicies(String repositoryId, String objectId, String filter,
              ExtensionsData extension) {
          // build URL
          UrlBuilder url = getObjectUrl(repositoryId, objectId, Constants.SELECTOR_POLICIES);
          url.addParameter(Constants.PARAM_FILTER, filter);
          url.addParameter(Constants.PARAM_SUCCINCT, getSuccinctParameter());
          url.addParameter(Constants.PARAM_DATETIME_FORMAT, getDateTimeFormatParameter());
  
          // read and parse
          Response resp = read(url);
          List<Object> json = parseArray(resp.getStream(), resp.getCharset());
  
          TypeCache typeCache = new ClientTypeCacheImpl(repositoryId, this);
  
          return JSONConverter.convertObjects(json, typeCache);
     }
 }