Package com.dbxml.db.client.tools.command

Source Code of com.dbxml.db.client.tools.command.ContentDrop

package com.dbxml.db.client.tools.command;

/*
* dbXML - Native XML Database
* Copyright (c) 1999-2006 The dbXML Group, L.L.C.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* $Id: ContentDrop.java,v 1.6 2006/02/02 18:53:46 bradford Exp $
*/

import java.io.PrintWriter;

import com.dbxml.db.client.CollectionClient;
import com.dbxml.db.client.tools.CommandLine;
import com.dbxml.util.dbXMLException;

/**
* ContentDrop (RM) removes content from the current context Collection.
*/

public final class ContentDrop extends ContentBase {
   protected void process(CollectionClient col, String docName) throws dbXMLException {
      boolean wildcard = docName.indexOf('?') != -1 || docName.indexOf('*') != -1;
      PrintWriter pw = cl.getWriter();

      if ( cl.isPropertyTrue(CommandLine.CONFIRM) ) {
         try {
            String ans;
            if ( wildcard )
               ans = cl.readLine("Delete Document(s) (y/N)? ");
            else
               ans = cl.readLine("Delete Document (y/N)? ");

            if ( !ans.equalsIgnoreCase("yes") && !ans.equalsIgnoreCase("y") ) {
               pw.println("Document deletion canceled");
               return;
            }
         }
         catch ( Exception e ) {
            throw new dbXMLException("Error obtaining answer");
         }
      }

      if ( wildcard ) {
         WildcardMatcher matcher = new WildcardMatcher(docName);
         String[] list = col.listKeys();
         int count = 0;
         int error = 0;
         for ( int i = 0; i < list.length; i++ ) {
            String key = list[i];
            if ( matcher.matches(key) ) {
               try {
                  col.remove(key);
                  count++;
               }
               catch ( Exception e ) {
                  pw.println("Document '" + key + "' not deleted");
                  error++;
               }
            }
         }

         if ( cl.isPropertyTrue(CommandLine.TOTALS) ) {
            if ( error > 0 ) {
               pw.println("-----------------------");
               pw.println(count+" Document(s) deleted ("+error+" errors)");
            }
            else
               pw.println(count+" Document(s) deleted");
         }
      }
      else {
         try {
            col.remove(docName);
            pw.println("Document '" + docName + "' deleted");
         }
         catch ( Exception e ) {
            pw.println("Document '" + docName + "' not deleted: "+e.getMessage());
         }
      }
   }
}
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