content: /*
   * 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 com.aliyun.openservices.odps.console.auth;
  
  import java.io.PrintStream;
  
  import com.aliyun.odps.Odps;
  import com.aliyun.odps.OdpsException;
  import com.aliyun.odps.security.SecurityManager;
  import com.aliyun.openservices.odps.console.ExecutionContext;
  import com.aliyun.openservices.odps.console.ODPSConsoleException;
  import com.aliyun.openservices.odps.console.commands.AbstractCommand;
  import com.aliyun.openservices.odps.console.output.DefaultOutputWriter;
  
  public class GetPolicyCommand extends AbstractCommand {
  
    private String roleName = null;
  
    public static final String[] HELP_TAGS = new String[]{"get", "policy"};
  
    public static void printUsage(PrintStream stream) {
      stream.println("Usage: get policy");
      stream.println("       get policy on role <roleName>");
    }
  
    public String getRoleName() {
      return roleName;
    }
  
    public GetPolicyCommand(String commandText, ExecutionContext context) {
      super(commandText, context);
    }
  
    public GetPolicyCommand(String roleName, String commandText, ExecutionContext context) {
      super(commandText, context);
      this.roleName = roleName;
  
    }
  
    @Override
    public void run() throws OdpsException, ODPSConsoleException {
      Odps odps = getCurrentOdps();
      SecurityManager sm = odps.projects().get().getSecurityManager();
  
      String policy = "";
      if (roleName == null) {
        policy = sm.getProjectPolicy();
      } else {
        policy =sm.getRolePolicy(roleName);
      }
  
      DefaultOutputWriter outputWriter = this.getContext().getOutputWriter();
      outputWriter.writeResult(policy);
  
    }
  
    public static GetPolicyCommand parse(String commandString, ExecutionContext sessionContext) {
      if (commandString.trim().toUpperCase().matches("GET\\s+POLICY.*")) {
  
        String[] splits = commandString.split("\\s+");
        if (splits.length == 2) {
          return new GetPolicyCommand(commandString, sessionContext);
        } else if (splits.length == 5 && splits[2].toUpperCase().equals("ON")
            && splits[3].toUpperCase().equals("ROLE")) {
  
          return new GetPolicyCommand(splits[4], commandString, sessionContext);
        }
  
      }
      return null;
    }
  
  }
  