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

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

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: CreateCollection.java,v 1.8 2006/02/02 18:53:46 bradford Exp $
*/

import com.dbxml.db.client.CollectionClient;
import com.dbxml.db.server.dbXML;
import com.dbxml.util.dbXMLException;
import com.dbxml.xml.dom.DOMHelper;
import java.util.Properties;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import java.util.Iterator;
import java.util.Map;

/**
* CreateCollection (MKCOL) creates a Collection under the current
* context Collection.
*/

public final class CreateCollection extends CreateBase {
   private static final String CLASS = "class";
   private static final String DEFAULT_CLASS = dbXML.DEFAULT_FILER;
   private static final String PAGESIZE = "pagesize";
   private static final String DEFAULT_PAGESIZE = "4096";
   private static final String TYPE = "type";
   private static final String DEFAULT_TYPE = "compressed";

   protected String getType() {
      return "Collection";
   }

   protected boolean createObject(CollectionClient col, String name, Properties props) throws dbXMLException {
      try {
         String cname = props.getProperty(CLASS, DEFAULT_CLASS);
         props.remove(CLASS);
         String type = props.getProperty(TYPE, DEFAULT_TYPE);
         props.remove(TYPE);

         Document doc = DOMHelper.newDocument();
         Element root = doc.createElement("collection");
         root.setAttribute("name", name);
         root.setAttribute("type", type);
         doc.appendChild(root);

         Element filer = doc.createElement("filer");
         filer.setAttribute("class", cname);
         Iterator iter = props.entrySet().iterator();
         while ( iter.hasNext() ) {
            Map.Entry entry = (Map.Entry)iter.next();
            String key = (String)entry.getKey();
            String value = (String)entry.getValue();
            filer.setAttribute(key, value);
         }
         root.appendChild(filer);

         root.appendChild(doc.createElement("indexes"));
         root.appendChild(doc.createElement("triggers"));
         root.appendChild(doc.createElement("extensions"));

         return col.createCollection(name, doc) != null;
      }
      catch ( Exception e ) {
         throw new dbXMLException(e);
      }
   }
}

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