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/*
 * Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
 * under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright
 * ownership. Camunda licenses this file to you under the Apache License,
 * Version 2.0; 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.camunda.bpm.engine.impl.cmd;

import java.io.Serializable;

import org.camunda.bpm.engine.impl.interceptor.Command;
import org.camunda.bpm.engine.impl.interceptor.CommandContext;
import org.camunda.bpm.engine.impl.persistence.entity.IdentityInfoEntity;


/**
 * @author Tom Baeyens
 */
public class GetUserInfoCmd implements Command, Serializable {

  private static final long serialVersionUID = 1L;
  protected String userId;
  protected String key;
  
  public GetUserInfoCmd(String userId, String key) {
    this.userId = userId;
    this.key = key;
  }

  public String execute(CommandContext commandContext) {
    IdentityInfoEntity identityInfo = commandContext
      .getIdentityInfoManager()
      .findUserInfoByUserIdAndKey(userId, key);

    return (identityInfo!=null ? identityInfo.getValue() : null);
  }
}