Package com.orientechnologies.orient.server.network.protocol.http.command.get

Source Code of com.orientechnologies.orient.server.network.protocol.http.command.get.OServerCommandGetCluster

/*
    *
    *  *  Copyright 2014 Orient Technologies LTD (info(at)orientechnologies.com)
    *  *
    *  *  Licensed 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.
    *  *
    *  * For more information: http://www.orientechnologies.com
    *
    */
package com.orientechnologies.orient.server.network.protocol.http.command.get;

import java.util.ArrayList;
import java.util.List;

import com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx;
import com.orientechnologies.orient.core.db.record.OIdentifiable;
import com.orientechnologies.orient.core.record.ORecord;
import com.orientechnologies.orient.server.network.protocol.http.OHttpRequest;
import com.orientechnologies.orient.server.network.protocol.http.OHttpResponse;
import com.orientechnologies.orient.server.network.protocol.http.command.OServerCommandAuthenticatedDbAbstract;

public class OServerCommandGetCluster extends OServerCommandAuthenticatedDbAbstract {
   private static final String[] NAMES = { "GET|cluster/*" };

   @Override
   public boolean execute(final OHttpRequest iRequest, OHttpResponse iResponse) throws Exception {
     String[] urlParts = checkSyntax(
         iRequest.url,
         3,
         "Syntax error: cluster/<database>/<cluster-name>[/<limit>]<br>Limit is optional and is setted to 20 by default. Set expressely to 0 to have no limits.");

     iRequest.data.commandInfo = "Browse cluster";
     iRequest.data.commandDetail = urlParts[2];

     ODatabaseDocumentTx db = null;

     try {
       db = getProfiledDatabaseInstance(iRequest);

       if (db.getClusterIdByName(urlParts[2]) == -1)
         throw new IllegalArgumentException("Invalid cluster '" + urlParts[2] + "'");

       final int limit = urlParts.length > 3 ? Integer.parseInt(urlParts[3]) : 20;

       final List<OIdentifiable> response = new ArrayList<OIdentifiable>();
       for (ORecord rec : db.browseCluster(urlParts[2])) {
         if (limit > 0 && response.size() >= limit)
           break;

         response.add(rec);
       }

       iResponse.writeRecords(response);
     } finally {
       if (db != null)
         db.close();
     }
     return false;
   }

   @Override
   public String[] getNames() {
     return NAMES;
   }
}
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